Heat exchanger-modular water heater and heat exchanger element (versions)

FIELD: mechanics, heating.

SUBSTANCE: in compliance with the invention, the heat exchanger-modular water heater incorporates one or two modules each comprising, at least, two heat exchanger units integrated by a diffuser to feed a cooling medium and a confuser to withdraw the medium to be cooled, primarily, a turbine hot exhaust gas. It also comprises the manifolds feeding and withdrawing the medium being heated, primarily, air, each communicating, via a tube plate, with, at least, one multi-row bank of multipass heat exchange pipes, the various pipes being furnished with bends varying in number from four to six and forming four rectilinear runs combining their three bends. Note here that the spacing in, at least, one direction, within the band cross section, of a part of the pipes or within their limits, or of, at least, one bank of the pipes out coming from the medium feed manifold, or, at least, in one of the next runs in the same direction does not comply with that of the pipes or a part of them in their bank run right nearby the manifold withdrawing the medium being heated and/or in one of the previous bank runs. The unit of the heat exchange-modular air heater comprises four runs of the heat exchanger pipe multi-row four-pass bank, the said pipes being laid in horizontal rows spaced in horizontal and vertical planes, the manifolds feeding and withdrawing the medium being heated, each being connected, via separate tube plates, with heat exchanger pipes, each tube plate being mounted in the aforesaid manifold walls. Note here that the spacing in, at least, one direction, within the band cross section, of a part of the pipes or within their limits, or of, at least, one bank of the pipes out coming from the medium feed manifold, or, at least, in one of the next runs in the same direction does not comply with that of the pipes or a part of them in their bank run right nearby the manifold withdrawing the medium being heated and/or in one of the previous bank runs. In compliance with the proposed invention, the aforesaid heat exchanger unit-modular air heater comprises a carcass, a bottom, and upper and lower casing walls, a diffuser to feed the medium to be cooled and a confuser to feed the aforesaid medium, manifolds feeding and withdrawing the medium to be heated and furnished with tube plates that form, in every row, an even number of rectilinear multi-pipe banks including, at least, two inner and two outer banks integrated by constant-radius bends. Note here that the unit housing bottom, cover and one of the side walls represent panels with a reinforcement framing elements forming a flat rod systems, while the unit carcass is formed by a set of the aforesaid flat rod systems with intermediate posts inter jointing the aforesaid systems and the manifolds housings rigidly fixed thereto and, in their turn, attached to the unit bottom and inter jointed via two-ring diaphragms and a pipe medium displacer. Note that the parts of the aforesaid manifolds housings with the aforesaid tube plates and pipe medium displacer fitted therein form, when combined, the unit housing rigid face wall while the side walls allow fastening the diffuser and confuser elements. Note here also that the spacing in, at least, one direction, within the band cross section, of a part of the pipes or within their limits, or of, at least, one bank of the pipes out coming from the medium feed manifold, or, at least, in one of the next runs in the same direction does not comply with that of the pipes or a part of them in their bank run right nearby the manifold withdrawing the medium being heated and/or in one of the previous bank runs. In compliance with this invention, the aforesaid heat exchanger unit-modular air heater incorporates a multi-row heat exchanger pipe bank made up of, at least, two bundles of two-pass U-pipes forming, within one bundle, two-run horizontal rows of pipes spaced apart both in rows and between rows, manifolds of feeding and withdrawing the medium being heated and, at least one bypass chamber arranged there between. Note here that the aforesaid manifolds and the bypass chamber communicate with the heat exchanger pipes via a common tube plate or separate tube plates, at least, one part of the said plates forming a part of the aforesaid manifolds enclosure walls. Note also here that the spacing in, at least, one direction, within the band cross section, of a part of the pipes or within their limits, or of, at least, one bank of the pipes out coming from the medium feed manifold, or, at least, in one of the next runs in the same direction does not comply with that of the pipes or a part of them in their bank run right nearby the manifold withdrawing the medium being heated and/or in one of the previous bank runs.

EFFECT: higher heat exchange efficiency, lower metal intensity of regenerative air heater.

34 cl, 15 dwg

 

The invention relates to a power system, namely, devices for waste heat recovery from gas units, in particular, to heat the exhaust products of combustion coming from the compressor of a gas turbine compressor units at compressor stations of main gas pipelines.

Known air heater (SU # 992920, F12L 15/04, 1983), containing one above the other and mounted on the lower frame blocks heat exchange sections formed of vertical tubes with a horizontal pipe boards, rigidly connected to each other and the upper junction box with a compensating temperature changes, while the heater is supplied with power by a belt with spring supports, covering wiring trunking, rigidly fastened with a belt in the zone below its compensator, and the area above the last interacting with spring supports.

Also known regenerative air heater (SU # 985595, F12L 15/04, 1982), containing pipe Board fixed inside the bundle of heat exchange tubes mounted in vertical rows which are orthogonal to the reference edges of the tube plate, for reducing thermal stresses in the pipe to secure the bundle of tubes in tube plates of the tubes in the rows to plot the sites, located in the edges of the tube plate, connected with each other and with the tube boards additional spacers.

The disadvantages of the above devices is their high metal content, due to the presence of vertical heat exchange tubes and the horizontal tube sheets. In the first analog load from the top of the distribution box is perceived through the blocks of the heat exchange sections of the lower frame, and therefore it took the introduction of the power belt with spring supports. In the second analogue to reduce thermal stresses it took the introduction of spacers, uniting pipe between itself and the tube Board.

The closest analogue is a regenerative air heater (RU # 31838 U1, F23L 15/04, 27.08.2003, containing heat exchange units having collected packages bundles of heat exchange tubes, the ends of which the fastening elements are connected with the collector supply and exhaust air, the bundle of heat exchange tubes has the form of a coil and made odnopalatnim, with the fastening elements of the heat transfer pipes to the collectors made in the form of a separate tube sheets, welded directly into the wall of the respective collector.

The disadvantages closest analogue is that it does not provide high thermal efficiency and compactness of the laying of Teploobmennik the x pipe while providing strength and rigidity, consequently, the closest analogue has a high metal content.

Known heat exchanger of the regenerative air heater, comprising a four-way multi-row bundle of heat exchange tubes (RU No. 17600 U1, F23L 15/04, 10.04.2001,) articulated set of horizontal rows of tubes V-shaped with one loss and two rectilinear branches, and each row contains two sets of tubes V-shaped, located next to each other on the same level.

A disadvantage of this device is that it does not provide a high efficiency of heat transfer and has a high metal content.

Known bundles of heat exchange tubes regenerative air heaters (EN 2087825, 20.08.1997), distantsiruyasj elements are corrugated in cross section having the form of continuous waves. Distantsiruyasj items can be made in the form of periodic corrugation, with the appearance of a full wave, with corrugated can be performed and the spaces between the corrugations in the form of the intermediate corrugations smaller height, angled to the direction of the major distantsiruyutsa bumps, coinciding generally with the direction of flow Teploobmennik environments.

The disadvantages of this analogue is that as a result of such execution distantsiruyutsa elements warm the Wai efficiency of the bundle of heat exchange tubes is insufficient, which ceteris paribus leads to higher dimensions and to increase the metal.

A close analogue is also a bundle of heat exchange tubes of the tubular air heater (SU # 1453122, F23L 15/04, 1989), including the tubes, mounted in the tube sheets, the intermediate tube made of wavy strips and are designed to attach thereto the heat exchange tubes in the case of supply lines to the gaps between the pipes and shells. Wavy strips provide spatial fixation of the heat exchange tubes, with wavy stripes are located on both sides of the stripes reference plots, one for each "half-wave"band for support contact support sections adjacent the height of wavy strips and connecting the reference sections of two inclined section forming the supporting elements for supporting the tubes of the bundle.

This device has a high intensity and low efficiency of heat transfer due to the fact that wavy stripes installed vertically and for the formation of a tube that functions distancerange element must be bonded, for example by welding, reference sites between themselves and with the heat exchanger pipes.

Well-known collector of the heat exchanger containing the inlet and outlet nozzles, package inserts, end of rotaryglobe with lids form a reservoir (RU # 2137076, 10.09.1999 year).

A well-known collector supply - air outlet of the regenerative air heater, in which General welded tube sheet (EN No. 17600 U1, 2001, RU # 2176051, 20.11.2001,).

The problem to be solved by all objects of this invention is to improve the heat exchange efficiency while ensuring compactness, higher strength and rigidity and reducing the metal.

The task of the first group object of the invention is solved due to the fact that the heat exchanger - block-sectional heater according to the invention contains one or more sections, each of which includes at least two heat exchangers, United diffuser for supply and confuser to drain the cooled environment, mainly the exhaust from the turbine hot gas, blocks with the reservoir inlet and outlet of the heated medium, preferably air, each of which is connected by tube sheets with at least one multi-beam multi-pass heat exchanger tubes with the number of bends in different pipes beam from four to six, forming four straight branches and connecting them three tribes, however, at least in one direction in the cross section of the beam, at least part of the pipe and/or within a portion of the length of the pipe, at least in the branch beam, directly leaving the her from the collector supply of the heated medium, and/or at least one of the subsequent downstream of the heated environment of the branches is made different from the pitch of the pipes and/or length of the pipe in the same direction in the cross section in the branch beam directly suitable to manifold exhaust of the heated medium, and/or at least one of the previous branches of the beam.

Step tubes in a row, at least part of the width of the branch beam directly to the exhaust from the manifold inlet of the heated medium can exceed step, at least part of the pipe in the series branches of the beam, directly suitable to manifold exhaust of the heated medium.

Step tubes in a row, at least part of the width of the branch beam directly to the exhaust from the manifold inlet of the heated medium may be less than the step, at least part of the pipe in the series branches of the beam, directly suitable to manifold exhaust of the heated medium.

Step, at least part of the beam pipe can be made variable, at least in one direction of the cross section of the branch beam, for example, within the branches of a number of tubes of the bundle and/or between at least a part of the ranks of pipes on the height of the beam.

Internal branches or portions thereof, at least part of the rows of tubes of the beam can be made non-parallel to the external branches within their respective rows, and the gaps between the branches, at least part of the rows of tubes of the bundle can be executed while the variable width along the length of the branches, for example wedge-shaped tapering and/or wedge-shaped widening.

The ratio of unequal steps adjacent pipe can be made different by at least 5% of the value of the smaller of them.

The number and distribution pipes in the beam can be taken with respect to the conditions under which the ratio of the volume VTT[m3]occupied heat exchange tubes in the block and is equal to the total volume of straight branches and knees pipes beam, defined by the outer contour of the conditional planes related to the external surfaces of extreme heat exchange tubes, minus the volume of the shell environment between branches and knees pipes beam to the total internal volume of the heat transfer block Vwnb.[m3], limited by the plate, top cover and end walls of the housing unit, determined in the range of values ofaverage of 0.56÷of 0.85, and the ratio of the total length ∑L [m] pipe beam to the total area of ∑SNTTexternal heat exchange surface of the pipe is determined by the coefficientcomponents of 0.08÷0,32 [m-1].

In each section of the heat exchanger of the heat exchange units can be placed one above the other, and the preferred number of blocks is four, and the manifold inlet and a manifold outlet of the heated medium can b shall be made with the possibility of connection to the pipeline inlet and outlet of the heated medium, which is used is preferably air, including enriched with oxygen, the cooling medium used in the products of combustion after the turbine of the gas turbine installation.

The ratio of the combined length ∑l" rectilinear branches, at least part of the heat exchange tubes, streamlined in the transverse direction, to their aggregate length ∑L [m] beam may be to 0.78 to 0.92, and the outer and inner tube, at least part of the ranks of the beam can each contain at least one bending length equal πR, and bendings of the other pipes in these lines of the beam can be made of length equal towhile the outer pipe this part of the series, with more pipes than in adjacent such series, has one died in length πR, forming the knee, connecting the internal branch of this pipe, the total number of bends this pipe is five, and the inner tube of each of such series that have more pipes than in adjacent such series, has two bending length πR, each of which forms a knee connecting the respective inner and outer branches of this pipe, and the total number of bends in this pipe is four, step ″and″ between the longitudinal axes of the adjacent pipe straight branches is (1,5-2,5)d, where d is the outer diameter of the tubes, the AG ″ b″ between the axes of adjacent tubes on the straight parts of the knees is (1,8-2,8)d, and in each row, step ″and″ between the longitudinal axes of the adjacent pipe straight branches is less than or greater than the step ″b″ between the longitudinal axes of the knee adjacent pipe, and preferably<b, or step ″and″ equal step ″b″, and the number of heat exchange tubes in the adjacent the height of the beam for odd and even rows respectively m and n, where m is an even number, and n=(m-1), the number of rows of tubes in the bundle of k - preferably odd, and k>3, the tubes adjacent the height of the rows arranged in a checkerboard pattern with offset (0,4÷0,6) [m], the number of tubes in the block is preferably 263-563 pieces

Every knee pipes of all ranks of the beam, formed by two bends in length each, equalmay contain conjugated with gibs rectilinear insert a length that is a multiple of 2A, where a is the spacing between the axes of the same rectilinear branches of adjacent tubes of the row, or every knee pipes of all ranks of the beam, formed by two bends in length each, equalmay contain conjugated with gibs rectilinear box in length, varying in different pipes range from a value equal to 2A±10% [m], to a value equal to 2a(m-1)±10% [m], for a series with a large number of tubes than in the CMA who were with them at the height of the rows, and for the rest of the series to a value equal to a(2n-1)±10% [m], where

and pitch axes of the same name rectilinear branches adjacent pipe series, [m],

m is the number of pipes in a row with a large number of pipes, mainly an even number of tubes in the odd rows

n is the number of pipes in a row with a smaller number of pipes, mainly an odd number of tubes in the even rows.

The task of the second group object of the invention is solved due to the fact that heat exchanger heat exchanger - block-section of the air heater according to the invention contains four branches of the four-way multi-row bundle of heat exchange tubes, arranged in horizontal rows and distanceremaining horizontally and vertically from each other, a manifold inlet and a manifold outlet of the heated medium, each of which is connected with a heat exchange tubes through a separate tube sheets mounted directly in the wall of the corresponding manifold inlet or outlet of the heated medium, and at least in one direction in the cross section of the beam, at least part pipes and/or within a portion of the length of the pipe, at least in the branch beam directly to the exhaust from the manifold inlet of the heated medium, and/or at least one of the subsequent downstream of the heated medium branches done is n, at least partially matching step, at least part of the pipe and/or within a portion of the length of the pipe, at least in the same direction in the cross section, at least in the branch beam directly suitable to manifold exhaust of the heated medium, and/or at least one of the previous branches of the beam.

Step tubes in a row, at least part of the width of the branch beam directly to the exhaust from the manifold inlet of the heated medium can exceed step, at least part of the pipe in the series branches of the beam, directly suitable to manifold exhaust of the heated medium.

Step tubes in a row, at least part of the width of the branch beam directly to the exhaust from the manifold inlet of the heated medium may be less than the step, at least part of the pipe in the series branches of the beam, directly suitable to manifold exhaust of the heated medium.

Step, at least part of the beam pipe can be made variable, at least in one direction of the cross section of the branch beam, for example, within the branches of a number of tubes of the bundle and/or between at least a part of the ranks of pipes on the height of the beam.

Internal branches, at least part of the rows of tubes of the beam can be made non-parallel to the external branches within their respective rows, and the gaps between the branches, at least part of the poisons pipes beam can be performed while a variable width along the length of the branches, for example wedge-shaped tapering and/or wedge-shaped widening.

The ratio of unequal steps adjacent pipe can be made different by at least 5% of the value of the smaller of them.

At least part of the heat exchange tubes, at least part of the series can be made with four or five or six bends of radius R, forming four straight branches and connecting them three tribes, with lots of bending the two tubes in each odd of these series may have a length of πR, namely: one pipe on the inner knee, the other on up to two external knees for the rest of the pipes such odd and even rows of plots bending length πR/2 and the articulated in pairs by means of straight-line inserts of length N'i- for external knees and Hifor the inner knee, and the number of heat transfer tubes interconnecting the height of such series beam for odd and even rows respectively m and n, where m is an even number and n=(m-1), the number of such rows of tubes in the bundle of k - preferably odd, and k>3, the tubes in the adjacent height of these rows can be arranged in a checkerboard pattern with offset (0,4÷0,6) [m], where a is the step between the longitudinal axes of the rectilinear branches related tubes of one series, [m], with length H'iand Nistraight inserts the knee of the i-th pipe can be is made variable: for an odd number of heat exchange tubes of varying magnitude, equal to 2A±10%, [m], to a value equal to 2A(m-1)±10%, [m], and for even number from value, equal and±10%, [m], to a value equal to a(2n-1)±10%, [m].

Placement of tubes in the volume occupied by at least one branch of the beam, may be accepted with conditions, the first of which is the ratio of the total area of ∑FNTPthe outer heat exchange surface of the pipes that branch beam to the volume ∑VMSoccupied by the shell environment in the zone of active heat transfer branches of the beam and is equal to the volume of the branches of the beam at the outer contour, defined conditional planes related to the external surfaces of extreme heat exchange tubes branch beam, minus the volume occupied by the actual heat exchange tubes in this branch of the beam is in the range of values defined by the coefficient[m-1]comprising (84,5-460) [m-1], the second condition is that the ratio of the total volume of ∑VV.S.for the heated medium in the pipe branch beam to the volume VMSdetermined coefficientcomponents 0,78-1,25.

The number N of heat exchange tubes in a block with an odd number of rows k pipes in the beam can be determined by the dependence N=0,5(k-1)(2m-1)+m and be preferably 263-563 units, or the number N of heat exchange tubes in the unit even when the Alceste series k pipes in the beam is determined by the dependence N=0,5k(2m-1) and is preferably 263-563 pieces

Between the reservoir inlet and outlet of the heated environment can be mounted displacer tube environment, made in the form of a profiled panel with a flat plane located between the collector supply or exhaust of the heated environment, while the square bore manifold inlet or exhaust manifold heated medium is 0.45-0,82 total of the cross-section area of the heat exchange tubes of the beam, and the heat exchange unit can be equipped with devices for slinging and manholes-manholes, made in the collector supply and discharge of the heated medium.

The problem in part of the third object in the group of inventions is solved due to the fact that heat exchanger heat exchanger - block-section of the air heater according to the invention contains a spatial frame, bottom, top cover and end walls of the housing, the diffuser inlet and the confuser for removal of cooling medium, the reservoir inlet and outlet of the heated medium pipe boards and multi-pass multi-row bundle of heat exchange tubes, forming respectively in each row an even number of straight Novotrubny branches, including at least two internal and two external, United plots with gibs mostly constant for all pipes beam radius at the bottom of the roof is but one of the end walls of the housing unit is made in the form of panels with piping of the stiffeners, forming a flat rod system, and the spatial frame unit is formed by a set of plane truss systems frameworks of these panels with their apex intermediate the uprights and rigidly associated with the casing inlet and outlet of the heated medium, which, in turn, is connected with the bottom of the block and between dvukhkontsevaya diaphragms and the displacer shell environment, with part of the casing inlet and outlet of the heated medium mounted them pipe boards and a displacer shell environment form total developed spatial rigid end wall of the housing unit, and the longitudinal sides of the frame is made with fastening elements respectively of the diffuser and confuser for inlet and outlet cooling medium, in this case, at least in one direction in the cross section of the beam, at least part of the pipe and/or within a portion of the length of the pipe, at least in the branch beam directly to the exhaust from the manifold inlet of the heated medium, and/or at least one of the subsequent downstream of the heated environment of branches executed, at least partially coincident with the step of at least part of the pipe and/or within a portion of the length of the pipe, at least in the same direction in the cross section, at least weti beam, directly appropriate to the collector outlet of the heated medium, and/or at least one of the previous branches of the beam.

Step tubes in a row, at least part of the width of the branch beam directly to the exhaust from the manifold inlet of the heated medium can exceed step, at least part of the pipe in the series branches of the beam, directly suitable to manifold exhaust of the heated medium.

Step tubes in a row, at least part of the width of the branch beam directly to the exhaust from the manifold inlet of the heated medium may be less than the step, at least part of the pipe in the series branches of the beam, directly suitable to manifold exhaust of the heated medium.

Step, at least part of the beam pipe can be made variable, at least in one direction of the cross section of the branch beam, for example, within the branches of a number of tubes of the bundle and/or between at least a part of the ranks of pipes on the height of the beam.

Internal branches, or at least parts thereof, at least part of the rows of tubes of the beam can be made non-parallel to the external branches within their respective rows, and the gaps between the branches, at least part of the rows of tubes of the bundle can be executed while the variable width along the length of the branches, for example wedge-shaped tapering and/or wedge-shaped widening.

The ratio Nirav the s steps adjacent pipe can be made different by at least 5% of the value of the smaller of them.

The displacer tube may be made in the form of a profiled panel with a flat plane, the inner surface of which is located between the reservoir inlet and outlet of the heated medium in the same plane with the outer plane of the tube sheets or in the form of a flat bar welded to the walls of the reservoir inlet and outlet of the heated environment so that its inner surface lies in the same plane with the outer plane of the tube plates, with the heat exchange unit can be supplied mounted on the bottom of the chassis unit discontinuously elements for heat-exchanger tubes in the outer branches of the beam in the form of distantsiruyutsa gratings, and mentioned heat exchange pipes can be passed through the holes distantsiruyutsa gratings, and subsequent rows of heat exchange tubes in the area of internal branches can be separated discontinuously straps folded form, which is attached to the racks set on the bottom, and, in addition, on the bottom of the case can be attached combs for at least the internal branches of the lower row of heat exchange tubes.

The cross-sectional area of each of the collector supply and discharge of the heated medium may be of 1.8-3.5 from the total of the cross-section area of heat exchange tubes in the unit, and the collector supply and discharge heated the Reda can be performed with manholes-manholes, spaced from the bottom of the block, with manhole covers-manhole hinged to the casing inlet and outlet of the heated environment can be rotated in the plane perpendicular to the longitudinal axis of symmetry of the collector supply and discharge of the heated medium, and on the inner walls of the reservoir inlet and outlet of the heated medium is installed a support, forming a ladder for inspection and maintenance of the reservoir inlet and outlet of the heated medium pipe and boards.

Heat exchanger heat exchanger can be equipped with means for attaching the diffuser inlet and confuser for removal of cooling medium, installed on the opposite side elements of the spatial framework of the unit, as well as the brackets for attaching the outer insulation.

The problem in part of the fourth group object of the invention is solved due to the fact that heat exchanger heat exchanger - block-section of the air heater according to the invention contains a multi-row bundle of heat exchange tubes, consisting of at least two packages of two-way U-shaped tubes forming within each package dvuhvetvevym, for example, the horizontal rows of tubes, distanceremaining within rows and between rows from each other, the collector inlet and collector drainage naked is evemail environment and located between them, at least one bypass chamber, and a manifold inlet and a manifold outlet of the heated medium, and an overflow chamber is connected to the heat exchange tubes of the tube Board or separate pipe boards, at least part of which is, or which forms part of a wall fence collector inlet and exhaust manifold heated medium and the bypass chamber, and at least in one direction in the cross section of the beam, at least part of the pipe and/or within a portion of the length of the pipe, at least in the branch beam directly to the exhaust from the manifold supplying a heated medium and/or the bypass chamber, and/or at least one of the subsequent downstream of the heated environment of branches executed, at least partially coincident with the step of at least part of the pipe and/or within a portion of the length of the pipe, at least in the same direction in the cross section, at least in the branch beam directly suitable to manifold exhaust of the heated medium and/or the bypass chamber, and/or at least one of the previous branches beam.

Step tubes in a row, at least part of the width of the branch beam directly to the exhaust from the manifold inlet of the heated medium and/or from the bypass chamber can exceed step, at least part of the pipes in a row in the Twi beam, directly appropriate to the collector outlet of the heated medium and/or to bypass the camera.

Step tubes in a row, at least part of the width of the branch beam directly to the exhaust from the manifold inlet of the heated medium and/or from the overflow chamber may be smaller step, at least part of the pipe in the series branches of the beam, directly suitable to manifold exhaust of the heated medium and/or to bypass the camera.

Step, at least part of the beam pipe can be made variable, at least in one direction of the cross section of the branch beam, for example, within the branches of a number of tubes of the bundle and/or between at least a part of the ranks of pipes on the height of the beam.

The ratio of unequal steps adjacent pipe can be made different by at least 5% of the value of the smaller of them.

The technical result provided by all the objects of the invention is to improve the heat exchange efficiency due to the developed invention of the optimal arrangement of tubes in the bundle, providing uniform heat transfer while reducing the metal regenerative air heater and its structural elements due to the reduced size of metal grating elements for heat-exchanger tubes.

The invention is illustrated by drawings

where

<> 1 shows a regenerative air heater, side view;

figure 2 - the same, top view;

figure 3 - heat exchanger of the regenerative air heater, top view;

figure 4 - heat exchanger tube, top view;

figure 5 - node a in figure 3;

figure 6 - cross section b-B in figure 3;

figure 7 - heat exchanger of the regenerative air heater with open hatch covers-manhole, top view;

on Fig - block regenerative air heater is a perspective view of;

figure 9 - distanziali element in the form of folded plates;

figure 10 is a section of the regenerative air heater, the main view;

figure 11 is a section of the regenerative air heater, side view;

on Fig - collector inlet or outlet of the heated environment, the main view;

on Fig - section b-b In Fig;

on Fig node G on Fig;

on Fig - embodiment of a heat exchanger unit with an overflow chamber in the plan.

Heat exchanger - block-sectional heater contains one or more sections 1, each of which includes at least two heat exchangers, United diffuser 2 for supply and confuser 3 for removal of the cooled environment, mainly the exhaust from the turbine hot gas, blocks of 4 with the reservoir inlet 5 and outlet 6 of the heated medium, preferably air, to each of the which is connected by tube plates 7, at least one multi-beam 8 a multi-pass heat exchange tubes 9 with the number of bends 10, 11, different pipes 9 beam 8 from four to six, forming four straight branches 12, 13 and connecting them three tribes 14, 15, 16. At least in one direction in the cross section of the beam 8 step, at least part of the pipe 9 and/or within a portion of the length of the pipes 9, at least in the branch beam 8, directly to the exhaust from the manifold inlet 5 of the heated medium, and/or at least one of the subsequent downstream of the heated environment of the branches is made different from the pitch of the pipes 9 and/or part of the length of the pipe 9 in the same direction in the cross section in the branch beam 8 that is directly appropriate to the exhaust manifold 6 of the heated medium, and/or at least one of the previous branches 13 of the beam 8.

Step pipe 9 in a row, at least part of the width of the branch beam 8, directly to the exhaust from the manifold inlet 5 of the heated medium exceeds step, at least part of the pipe 9 in the series branches of the beam 8 that is directly appropriate to the exhaust manifold 6 of the heated medium.

Step pipe 9 in a row, at least part of the width of the branch beam 8, directly to the exhaust from the manifold inlet 5 of the heated environment, fewer steps, at least part of the pipe 9 in the series branches of the beam 8 that is directly appropriate to the exhaust manifold 6 of the heated media is.

At least the step portion of the pipe 9 of the beam 8 is made variable, at least in one direction of the cross section of the branches 12 of the beam 8, for example, within the branches 12 number of tubes 9 of the beam 8 and/or between at least a part of the ranks of pipes 9 to the height of the beam 8.

Internal branch 12 or parts thereof, at least part of the rows of tubes 9 of the beam 8 is made non-parallel to the external branches 13 within the respective rows, and the gaps between the branches 12, 13, at least part of the rows of tubes 9 of the beam 8 is executed while the variable width along the length of the branches, for example wedge-shaped tapering and/or wedge-shaped widening.

The ratio of unequal steps adjacent pipe 9 made different by at least 5% of the value of the smaller of them.

The number and distribution pipes 9 in beam 8 are taken with respect to the conditions under which the ratio of the volume VTT[m3]occupied heat exchange tubes 9 in the block and is equal to the total volume of straight branches 12, 13 and knees 14, 15 tubes 9 of the beam 8, defined by the outer contour of the conditional planes related to the external surfaces of extreme heat exchange tubes 9, minus the volume of the shell environment between the branches 12, 13 and knees 14, 15 tubes 9 of the beam 8, to the total internal volume of the heat transfer block 4 Vwnb.[m3], limited by the plate, top cover and end walls of the housing block is a, defined in the range valuesaverage of 0.56÷of 0.85, and the ratio of the total length ∑L [m] pipe beam to the total area of ∑SNTTexternal heat exchange surface of the pipe 9 is determined by the coefficientcomponents of 0.08÷0,32 [m-1].

In each section of the heat exchanger 1 blocks 4 are arranged one above the other, and the preferred number of blocks 4 - four. The inlet manifold 5 and an exhaust manifold 6 of the heated medium is made with possibility of connection to the pipeline inlet and outlet of the heated medium, which is used preferably air, including enriched with oxygen, the cooling medium used in the products of combustion after the turbine of the gas turbine installation.

The ratio of the combined length ∑l" rectilinear branches, at least part of the heat exchange tubes 9, streamlined in the transverse direction, to their aggregate length ∑L [m] beam 8 is 0.78 to 0.92. External 17 and 18 internal pipe, at least in part of a series of beam 8 each contain at least one bend 10, 11 length equal πR, and the bends 10, 11 of the remaining pipes 9 in these series of beam 8 made of length equal to. The outer tube 17 of this part of the series, with a larger number of tubes 9 than in adjacent t the fir series, has one died 10 long πR, forming the knee 16 connecting the internal branch of this pipe 17, the total number of bends 10 this pipe 17 is five, and the inner tube 18 of each of such series having a greater number of tubes 9 than in adjacent such series, has two bend 11 long πR, each of which forms a knee 14, 16, connecting the respective inner 12 and 13 of the external branch of this pipe 18, and the total number of bends 11 this pipe 18 is four, step ″and″ between the longitudinal axes of the adjacent pipe 9 straight branches 12, 13 is (1,5-2,5)d, where d is the outer diameter of the tubes 9, step ″b″ between the axes of adjacent pipe 9 on the straight parts of lap 14, 15, 16 is (1,8-2,8)d. In each row, step ″and″ between the longitudinal axes of the adjacent pipe 9 straight branches is less than or greater than the step ″b″ between the longitudinal axes of the knee 14, 15, 16 adjacent pipe 9, and preferably<b, or step ″and″ equal step ″b″, and the number of heat exchange tubes 9 in the adjacent height rows beam 8 for odd and even rows respectively and m n, where m is an even number, and n=(m-1), the number of rows of tubes 9 in beam 8 k - preferably odd, and k>3, the tubes 9 in the adjacent height rows arranged in a checkerboard pattern with offset (0,4÷0,6)a, [m], the number of tubes 9 in the block is preferably 263-563 pieces

p> Every knee 14, 15, 16 pipes 9 all series of beam 8, formed by two bends 10, 11 length of each equalcontains conjugated with gibs 10, 11 rectilinear box 19 length that is a multiple of 2A, where a is the spacing between the axes of the same rectilinear branches 12, 13 adjacent pipe 9 series, or every knee 14, 15, 16 pipes 9 all series of beam 8, formed by two bends 10, 11 length of each equalcontains conjugated with gibs 10, 11 rectilinear box 19 in length, varying in different pipes 9 range from values equal to 2A±10% [m] to a value equal to 2A(m-1)±10% [m] for rows with a large number of pipes 9 than in adjacent height rows, and for the remaining rows to a value equal to a(2n-1)±10% [m], where

and pitch axes of the same name rectilinear branches 12, 13 of adjacent tubes in row 9, [m],

m is the number of pipes 9 in a row with a large number of pipes 9, predominantly an even number of tubes 9 in the odd rows

n is the number of pipes 9 in a row with a smaller number of tubes 9, predominantly odd number of tubes 9 in the even rows.

The heat exchange unit according to the second variant implementation contains four branches of the four-way multi beam 8 of the heat exchange tubes 9, arranged in horizontal rows and distanceremaining horizontally and vertically from each other, the inlet manifold 5 and an exhaust manifold 6 n crevamoy environment, each of which is connected with a heat exchange tubes 9 through a separate tube sheets 7, which are mounted directly in the wall of the corresponding manifold inlet 5 or the outlet 6 of the heated medium, and at least in one direction in the cross section of the beam 8 step, at least part of the pipe 9 and/or within a portion of the length of the pipes 9, at least in the branch beam 8, directly to the exhaust from the manifold inlet 5 of the heated medium, and/or at least one of the subsequent downstream of the heated environment of the branches 12, 13 are made at least partially matching step, at least part of the pipe 9 and/or within a portion of the length of the pipes 9, at least in the same direction in the cross section, at least in the branch beam 8 that is directly appropriate to the exhaust manifold 6 of the heated medium, and/or at least one of the previous branches of the beam 8.

Step pipe 9 in a row, at least part of the width of the branch beam 8, directly to the exhaust from the manifold inlet 5 of the heated medium exceeds step, at least part of the pipe 9 in the series branches of the beam 8 that is directly appropriate to the exhaust manifold 6 of the heated medium.

Step pipe 9 in a row, at least part of the width of the branch beam 8, directly to the exhaust from the manifold inlet 5 of the heated environment, fewer steps, at least part of the RUB 9 in the series branches of the beam 8, directly appropriate to the exhaust manifold 6 of the heated medium.

Step, at least part of the pipe 9 of the beam 8 is made variable, at least in one direction of the cross section of the branch beam 8, for example, within the branches of a number of tubes 9 of the beam 8 and/or between at least a part of the ranks of pipes 9 to the height of the beam 8.

Internal branches 12, at least part of the rows of tubes 9 of the beam 8 is made non-parallel to the external branches 13 within the respective rows, and the gaps between the branches 13, at least part of the rows of tubes 9 of the beam 8 is executed while the variable width along the length of the branches 13, for example wedge-shaped tapering and/or wedge-shaped widening.

The ratio of unequal steps adjacent pipe 9 made different by at least 5% of the value of the smaller of them.

At least part of the heat exchange tubes 9, at least part series made with four or five or six bends 10, 11 radius R, forming four straight branches 12, 13 and connecting them three tribes 14, 15, 16. Lots of bending the two pipes 9 in each of these odd rows have length πR, namely: one pipe 9 on the inner knee 15, the other - on the two outer lap 14, 16, for the rest of the pipes 9 such odd and even rows of plots bending length πR/2 and articulated in pairs by means of straight-line inserts 19 length H'ito the outside the knee 14, 16 and Hifor internal knee 15, and the number of heat exchange tubes 9 in the adjacent height such series of beam 8 for odd and even rows respectively m and n, where m is an even number and n=(m-1), the number of such rows of tubes 9 in beam 8 k - preferably odd, and k>3, the tubes 9 in the adjacent height such rows arranged in a checkerboard pattern with offset (0,4÷0,6)a, [m], where a is the step between the longitudinal the axes of the rectilinear branches 12, 13 adjacent pipe 9 single row, [m], with length N'iand Nistraight inserts 19 knee of the i-th pipe 9 is made variable: for an odd number of heat exchange tubes 8 changing from a value equal to 2A±10%, [m], to a value equal to 2A(m-1)±10%, [m], and for even number from value, equal and±10%, [m], to a value equal to a(2n-1)±10%, [m].

The placement of the pipes 9 in the volume occupied, at least one branch of the beam 8, accepted with conditions, the first of which is the ratio of the total area of ∑FNTPthe outer heat exchange surface of the tubes 9 of this branch of the beam 8 to the volume ∑VM.S.occupied by the shell environment in the zone of active heat transfer branches beam 8 and is equal to the volume of the branch beam 8 at the outer contour, defined conditional planes related to the external surfaces of extreme heat exchange tubes 9 of the branch beam 8, for videomobile, covered with heat exchange tubes 9 in this branch of the beam 8, is in the range of values defined by the coefficientcomponents (84,5-460) [m-1], the second condition is that the ratio of the total volume of ∑VV.S.for the heated medium in the tubes 9 of the branch beam 8 to the volume VMSdetermined coefficientcomponents 0,78-1,25.

The number N of heat exchange tubes 9 in the block with an odd number of rows k pipes 9 in beam 8 is determined by the dependence N=0,5(k-1)(2m-1)+m and is preferably 263-563 units, or the number N of heat exchange tubes 9 in the unit when there is an even number of rows k pipes 9 in beam 8 is determined by the dependence N=0,5k(2m-1) and is preferably 263-563 pieces

Between the reservoir inlet 5 and outlet 6 of the heated medium is fixed displacer tube 20 environment, made in the form of profiled panels with flat area 21 located between the collector supply 5 or allotment 6 of the heated medium. Square bore manifold inlet 5 or the exhaust manifold 6 of the heated medium is 0.45-0,82 total of the cross-section area of the heat exchange tubes 9 of the beam 8, and the heat exchange unit is equipped with a device 22 for slinging and manholes-manholes, made in the reservoir inlet 5 and outlet 6 of the heated medium.

Teploobmennik the block by the third variant of execution contains a spatial frame 23, the bottom 24, the upper cover 25 and end walls 26 of the housing 27, the diffuser 2 for the supply and the confuser 3 for removal of cooling medium, the reservoir inlet 5 and outlet 6 of the heated medium pipe 7 boards and a multi-pass multi beam 8 of the heat exchange tubes 9, forming respectively in each row an even number of straight Novotrubny branches 12, 13, including at least two inner 12 and two outer 13, the joint sections with bends 10, 11 mostly constant for all pipe 9 of the beam 8 of the radius, while the bottom 24, the lid 25 and one of the end walls 26 of the housing 27 of the block is made in the form of panels with piping of stiffeners forming a flat rod system 28, and the spatial frame 23 of the block formed by the combination of the flat rod systems 28 frames of these panels uniting their intermediate racks 29 and rigidly associated with the casing inlet 5 and outlet 6 of the heated medium, which, in turn, is connected with the bottom 24 of the block and between dvukhkontsevaya diaphragms and the displacer tube 20 environment, with part of the casing inlet 5 and outlet 6 of the heated medium mounted them pipe 7 boards and the displacer tube 20 environment form total developed spatial rigid end wall 26 of the housing 27 of the block and along the longitudinal sides to RCAS 23 is made with fastening elements respectively of the diffuser 2 and confuser 3 for supplying and discharging cooling medium, thus, at least in one direction in the cross section of the beam 8 step, at least part of the pipe 9 and/or within a portion of the length of the pipes 9, at least in the branch beam 8, directly to the exhaust from the manifold inlet 5 of the heated medium, and/or at least one of the subsequent downstream of the heated environment of branches executed, at least partially coincident with the step of at least part of the pipe 9 and/or within a portion of the length of the pipes 9, at least in the same direction in the cross section, at least in the branch beam 8 that is directly appropriate to the exhaust manifold 6 of the heated medium, and/or at least one of the previous branches of the beam 8.

Step pipe 9 in a row, at least part of the width of the branch beam 8, directly to the exhaust from the manifold inlet 5 of the heated medium exceeds step, at least part of the pipe 9 in the series branches of the beam 8 that is directly appropriate to the exhaust manifold 6 of the heated medium.

Step pipe 9 in a row, at least part of the width of the branch beam 8, directly to the exhaust from the manifold inlet 5 of the heated environment, fewer steps, at least part of the pipe 9 in the series branches of the beam 8 that is directly appropriate to the exhaust manifold 6 of the heated medium.

Step, at least part of the pipe 9 of the beam 8 is made variable, at least in one direction poperen the th section of the branch beam 8, for example, within the branches of a number of tubes 9 of the beam and/or between at least a part of the ranks of pipes 9 to the height of the beam 8.

Internal branches 12, or at least parts thereof, at least part of the rows of tubes 9 of the beam 8 is made non-parallel to the external branches 13 within the respective rows, and the gaps between the branches 12, 13, at least part of the rows of tubes 9 of the beam 8 is executed while the variable width along the length of the branches 12, 13, for example wedge-shaped tapering and/or wedge-shaped widening.

The ratio of unequal steps adjacent pipe 9 made different by at least 5% of the value of the smaller of them.

The displacer tube 20 environment made in the form of a profiled panel with a flat plane 21, the inner surface of which is located between the reservoir inlet 5 and outlet 6 of the heated medium in the same plane with the outer plane of the tube plates 7, or in the form of a flat bar welded to the walls of the reservoir inlet 5 and outlet 6 of the heated environment so that its inner surface lies in the same plane with the outer plane of the tube plates 7. Heat exchanger block has secured to the bottom 24 and the frame 23 of the housing 27 of the block discontinuously elements 30 to the heat exchange tubes 9 of the outer branches 13 of the beam 8 in the form of distantsiruyutsa gratings, and referred to the tubes 9 are passed through the holes diest is ziruyuschih gratings, and then the rows of heat exchange tubes 9 into the inside of the branches 12 are separated discontinuously slats 31 of the folded form, which is attached to the racks 19, mounted on the bottom 24, and, in addition, on the bottom 24 of the housing 27 is fixed combs 32 for at least domestic branches 12 of the bottom row of heat exchange tubes 9.

The cross-sectional area of each of the collectors inlet 5 and outlet 6 of the heated medium is 1.8 and 3.5 of the total area of the flow area of the heat exchange tubes 9 in the block. The reservoir inlet 5 and outlet 6 of the heated medium is made with manholes-manholes, spaced from the bottom 24 of the block, and the cover 33 covers-manhole hinged to the casing inlet 5 and outlet 6 of the heated environment can be rotated in the plane perpendicular to the longitudinal axis of symmetry of the reservoir inlet 5 and outlet 6 of the heated medium, and on the inner walls of the reservoir inlet 5 and outlet 6 of the heated medium is installed a support, forming a ladder for inspection and maintenance of the reservoir inlet 5 and outlet 6 of the heated medium pipe and boards 7.

Heat-exchange unit is equipped with means for attachment of the diffuser 2 for supply and confuser 3 for removal of cooling medium, installed on the opposite side elements of the spatial frame 23 of the block, and Scaramella attaching the outer insulation.

The heat exchange unit according to the fourth variant of the execution contains multi beam 8 of the heat exchange tubes 9, comprising at least two packages of two-way U-shaped pipes 34, 35 forming within each package 36 dvuhvetvevym, for example, the horizontal rows of tubes 34, 35, distanceremaining within row and between the rows from one another, the inlet manifold 5 and an exhaust manifold 6 of the heated medium and located between at least one bypass chamber 37 and the inlet manifold 5 and an exhaust manifold 6 of the heated medium, and a bypass chamber 37 is connected with the heat exchange tubes 9 of the common pipe Board 7 or the split tube 7 boards, at least part of which is, or which forms part of the wall fence of the inlet manifold 5 and an exhaust manifold 6 of the heated medium and a bypass chamber 37, and at least in one direction in the cross section of the beam 8 step, at least part of the pipe 9 and/or within a portion of the length of the pipes 9, at least in the branch beam 8, directly to the exhaust from the manifold inlet 5 of the heated medium and/or the bypass chamber 37, and/or at least one of the subsequent downstream of the heated environment of branches executed, at least partially coincident with the step of at least part of the pipe 9 and/or within a portion of the length of the pipes 9, at the ore, in the same direction in the cross section, at least in the branch beam 8 that is directly appropriate to the exhaust manifold 5 of the heated medium and/or the bypass chamber 37, and/or at least one of the previous branches of the beam 8.

Step pipe 9 in a row, at least part of the width of the branch beam 8, directly to the exhaust from the manifold inlet 5 of the heated medium and/or from the bypass chamber 37 exceeds step, at least part of the pipe 9 in the series branches of the beam 8 that is directly appropriate to the exhaust manifold 6 of the heated medium and/or to bypass the chamber 37.

Step pipe 9 in a row, at least part of the width of the branch beam 8, directly to the exhaust from the manifold inlet 5 of the heated medium and/or from the bypass chamber 37, less step, at least part of the pipe 9 in the series branches of the beam 8 that is directly appropriate to the exhaust manifold 6 of the heated medium and/or to bypass the chamber 37.

Step, at least part of the pipe 9 of the beam 8 is made variable, at least in one direction of the cross section of the branch beam 8, for example, within the branches of a number of tubes 9 of the beam 8 and/or between at least a part of the ranks of pipes 9 to the height of the beam 8.

The ratio of unequal steps adjacent pipe 9 made different by at least 5% of the value of the smaller of them.

The performance of the regenerative air heater is carried out after the respective way.

The air used to fire the gas turbine, enters the compressor, which is compressed, and then by pipeline supply through the collector supply of the heated medium pipe and the Board is served in the tubes of the heat exchange units of each section. The temperature after the compressor is about 200°C.

The combustion products of the above composition from the turbine of the gas turbine through the diffuser adjacent to the heat exchange units, get inside the unit sections and wash the tubes with heated air. Supply products of combustion to the heat exchange units is in counter-current with the direction of movement of the heated air, that is, the products of combustion come in heat-exchange unit from the location of the collector drainage of the heated medium. At the entrance to the heat exchanger, the combustion gases have a temperature of 520-550°C.

Passing through the heat exchange pipe units, air is heated by the combustion products to a temperature of 440-450°and through the tube Board enters the collector outlet of the heated medium from which the pipeline is input to the furnace GTU.

The combustion products are vented to atmosphere through the confuser, adjacent to the heat exchange units.

1. Heat exchanger - block-sectional heater, characterizes is the, it contains one or more sections, each of which includes at least two heat exchangers, United diffuser for supply and confuser to drain the cooled environment, mainly the exhaust from the turbine hot gas, blocks with the reservoir inlet and outlet of the heated medium, preferably air, each of which is connected by tube sheets with at least one multi-beam multi-pass heat exchanger tubes with the number of bends in different pipes beam from four to six, forming four straight branches and connecting them three tribes, however, at least in one direction in the transverse the beam step, at least part of the pipe and/or within a portion of the length of the pipe, at least in the branch beam directly to the exhaust from the manifold inlet of the heated medium and/or at least one of the subsequent downstream of the heated medium branches, not made coincident with the step of pipes and/or length of the pipe in the same direction in the cross section in the branch beam directly suitable to manifold exhaust of the heated medium and/or at least one of the previous branches of the beam.

2. Heat exchanger according to claim 1, characterized in that the step of pipes in a row, at least part of the width of the branch beam directly to the exhaust from the manifold for supplying heated among the s, exceeds step, at least part of the pipe in the series branches of the beam, directly suitable to manifold exhaust of the heated medium.

3. Heat exchanger according to claim 1, characterized in that the step of pipes in a row, at least part of the width of the branch beam directly to the exhaust from the manifold supplying a heated medium, the smaller the step, at least part of the pipe in the series branches of the beam, directly suitable to manifold exhaust of the heated medium.

4. Heat exchanger according to claim 1, characterized in that step, at least part of the beam pipe is made variable, at least in one direction of the cross section of the branch beam, for example, within the branches of a number of tubes of the bundle and/or between at least a part of the ranks of pipes on the height of the beam.

5. Heat exchanger according to claim 1, characterized in that the inner branches or portions thereof, at least part of the rows of tubes of the bundle are made non-parallel to the external branches within their respective rows, and the gaps between the branches, at least part of the rows of tubes of the beam is performed while a variable width along the length of the branches, for example, wedge-shaped tapering and/or wedge-shaped widening.

6. Heat exchanger according to claim 1, characterized in that the ratio of unequal steps adjacent pipe made different by at least 5% of the value of the smaller of them.

7. Heat exchange apparatus the antibody according to claim 1, characterized in that the number and distribution pipes in the beam taken with respect to the conditions under which the ratio of the volume VTT[m3]occupied heat exchange tubes in the block and is equal to the total volume of straight branches and knees pipes beam, defined by the outer contour of the conditional planes related to the external surfaces of extreme heat exchange tubes, minus the volume of the shell environment between branches and knees pipes beam to the total internal volume of the heat transfer block Vwnb.[m3], limited by the plate, top cover and end walls of the housing unit, determined in the range of values ofaverage of 0.56-of 0.85, and the ratio of the total length ΣL [m] pipe beam to the total area of ΣSNTTexternal heat exchange surface of the pipe is determined by the coefficientcomponents of 0.08-0,32 [m-1].

8. Heat exchanger according to claim 1, characterized in that each section of the heat exchange units are arranged one above the other, and the preferred number of blocks is four, and the manifold inlet and a manifold outlet of the heated medium is made with possibility of connection to the pipeline inlet and outlet of the heated medium, which is used preferably air, including enriched content is the use of oxygen, the cooling medium used in the products of combustion after the turbine of the gas turbine installation.

9. Heat exchanger according to claim 1, characterized in that the ratio of the combined length Σl" rectilinear branches, at least part of the heat exchange tubes, streamlined in the transverse direction, to their aggregate length ΣL [m] beam is 0.78 to 0.92, while the outer and inner tubes, at least in part of a series of beam each containing at least one bending length equal πR, and bendings of the other pipes in these rows beam made of length equal tothe external pipe this part of the series, with more pipes than in adjacent such series, has one died in length πR, forming the knee, connecting the internal branch of this pipe, the total number of bends this pipe is five, and the inner tube of each of such series that have more pipes than in adjacent such series, has two bending length πR, each of which forms a knee connecting the respective inner and outer branches of this pipe, and the total number of bends in this the pipe is four, step ″and″ between the longitudinal axes of the adjacent pipe straight branches is (1,5-2,5)d, where d is the outer diameter of the tubes, step ″b″ between the axes of adjacent tubes on the straight parts of the knee extending t is (1,8-2,S)d, moreover, in each row, step ″and″ between the longitudinal axes of the adjacent pipe straight branches is less than or greater than the step ″b″ between the longitudinal axes of the knee adjacent pipe, and preferably<b, or step ″and″ equal step ″b″, and the number of heat transfer tubes interconnecting the height of the beam for odd and even rows respectively m and n, where m is an even number, and n=(m-1), the number of rows of tubes in the bundle preferably k is odd, and k>3, the tubes adjacent the height of the rows arranged in a checkerboard pattern with offset (0,4-0,6) [m], the number of tubes in the block is preferably 263-563 pieces

10. Heat exchanger according to claim 9, characterized in that every knee pipes of all ranks of the beam, formed by two bends in length each, equalcontains conjugated with gibs rectilinear insert a length that is a multiple of 2A, where a is the spacing between the axes of the same rectilinear branches of adjacent tubes of the row, or every knee pipes of all ranks of the beam, formed by two bends in length each, equalcontains conjugated with gibs rectilinear box in length, varying in different pipes range from a value equal to 1A±10% [m], to a value equal to 1a(m-1)±10% [m] for rows with a large number of tubes than in the adjacent height rows, and for the rest of the series is about values, equal to a(2m-1)±10% [m], where

and pitch axes of the same name rectilinear branches adjacent pipe series, [m],

m is the number of pipes in a row with a large number of pipes, mainly an even number of tubes in the odd rows

n is the number of pipes in a row with a smaller number of pipes, mainly an odd number of tubes in the even rows.

11. Heat exchanger heat exchanger - block-section of the heater, characterized in that it contains four branches of the four-way multi-row bundle of heat exchange tubes, arranged in horizontal rows and distanceremaining horizontally and vertically from each other, a manifold inlet and a manifold outlet of the heated medium, each of which is connected with a heat exchange tubes through a separate tube sheets mounted directly in the wall of the corresponding manifold inlet or outlet of the heated medium, and at least in one direction in the cross section of the beam, at least part of the pipe and/or within a portion of the length of pipe at least in the branch beam directly to the exhaust from the manifold inlet of the heated medium, and/or at least one of the subsequent downstream of the heated medium branches, made at least partially coincident with the step of at least part of the pipe and/or is within the length of the pipe, at least in the same direction in the cross section, at least in the branch beam directly suitable to manifold exhaust of the heated medium and/or at least one of the previous branches of the beam.

12. Heat exchanger heat exchanger according to claim 11, characterized in that the step of pipes in a row, at least part of the width of the branch beam directly to the exhaust from the manifold inlet of the heated medium exceeds step, at least part of the pipe in the series branches of the beam, directly suitable to manifold exhaust of the heated medium.

13. Heat exchanger heat exchanger according to claim 11, characterized in that the step of pipes in a row, at least part of the width of the branch beam directly to the exhaust from the manifold supplying a heated medium, the smaller the step, at least part of the pipe in the series branches of the beam, directly suitable to manifold exhaust of the heated medium.

14. Heat exchanger heat exchanger according to claim 11, characterized in that step, at least part of the beam pipe is made variable, at least in one direction of the cross section of the branch beam, for example, within the branches of a number of tubes of the bundle and/or between at least a part of the ranks of pipes on the height of the beam.

15. Heat exchanger heat exchanger according to claim 11, characterized in that the inner branches, cranemore, part of the series of pipes beam is made non-parallel to the external branches within their respective rows, and the gaps between the branches, at least part of the rows of tubes of the beam is performed while a variable width along the length of the branches, for example, wedge-shaped tapering and/or wedge-shaped widening.

16. Heat exchanger heat exchanger according to claim 11, characterized in that the ratio of unequal steps adjacent pipe made different by at least 5% of the value of the smaller of them.

17. Heat exchanger heat exchanger according to claim 11, characterized in that at least part of the heat exchange tubes, at least part series made with four, or five, or six bends of radius R, forming four straight branches and connecting them three tribes, with lots of bending the two tubes in each of these odd rows have length πR, namely one of the pipes on the inner knee, the other on up to two external knees for the rest of the pipes such odd and even rows of the sections have a length of bend πR/1 and articulated in pairs by means of straight-line inserts length H'ifor external knees and Hifor the inner knee, and the number of heat transfer tubes interconnecting the height of such series beam for odd and even rows respectively m and n, where m is an even number and n=(m-1), the number of such rows of tubes in p is cke k - preferably odd, and k>3, the tubes in the adjacent height such rows arranged in a checkerboard pattern with offset (0,4-0,6) [m], where a is the step between the longitudinal axes of the rectilinear branches of adjacent tubes of one series, [m], with length H'iand Nistraight inserts the knee of the i-th tube is variable: for an odd number of heat exchange tubes vary from a value equal to 2A±10% [m], to a value equal to 2A(m-1)±10% [m], and for even number from value, equal and±10% [m] to a value equal to a(1n-1)±10% [m].

18. Heat exchanger unit 17, characterized in that the placement of the pipes in the volume occupied, at least one branch beam, accepted with conditions, the first of which is the ratio of the total area of ΣFNTPthe outer heat exchange surface of the pipes that branch beam to the volume ΣVM.S.occupied by the shell environment in the zone of active heat transfer branches of the beam and is equal to the volume of the branches of the beam at the outer contour, defined conditional planes related to the external surfaces of extreme heat exchange tubes branch beam, minus the volume occupied by the actual heat exchange tubes in this branch of the beam is in the range of values defined by the coefficientcomponents 84,5-460 [m-1]according to the second is the condition of the ratio of the total volume of Σ VV.S.for the heated medium in the pipe branch beam to the volume VMSdetermined coefficientcomponents 0,78-1,25.

19. Heat exchanger heat exchanger according to 17, characterized in that the number N of heat exchange tubes in a block with an odd number of rows k pipes in the beam is determined by the dependence N=0,5(k-1)(2m-1)+m and is preferably 263-563 units, or the number N of heat exchange tubes in the unit when there is an even number k of tubes in the bundle is determined by the dependence N=0,5k(2m-1) and is preferably 263-563 pieces

20. Heat exchanger heat exchanger according to claim 11, characterized in that between the reservoir inlet and outlet of the heated medium is fixed displacer tube environment, made in the form of a profiled panel with a flat plane located between the collector supply or exhaust of the heated environment, while the square bore manifold inlet or exhaust manifold heated medium is 0.45-0,82 total of the cross-section area of the heat exchange tubes of the beam, and heat exchanger equipped with devices for slinging and manholes-manholes, made in the collector supply and discharge of the heated medium.

21. Heat exchanger heat exchanger - block-section of the heater, characterized in that it contains is composed of a spatial frame, bottom, top cover and end walls of the housing, the diffuser inlet and the confuser for removal of cooling medium, the reservoir inlet and outlet of the heated medium pipe boards and multi-pass multi-row bundle of heat exchange tubes, forming respectively in each row an even number of straight Novotrubny branches, including at least two internal and two external, United plots with gibs mostly constant for all pipes beam radius, while the bottom cover and one of the end walls of the housing unit is made in the form of panels with piping of stiffeners forming a flat rod system, and the spatial frame of the unit formed by the combination of the flat rod systems frameworks of these panels with their apex intermediate the uprights and rigidly associated with the casing inlet and outlet of the heated medium, which, in turn, is connected with the bottom of the block and between dvukhkontsevaya diaphragms and the displacer shell environment, with part of the casing inlet and outlet of the heated medium mounted them pipe boards and a displacer shell environment form total developed spatial rigid end wall of the housing unit, and the longitudinal sides of the frame is made with fastening relevant what about the elements of the cone and confuser for supplying and discharging the cooled environment, thus, at least in one direction in the cross section of the beam, at least part of the pipe and/or within a portion of the length of the pipe, at least in the branch beam directly to the exhaust from the manifold inlet of the heated medium, and/or at least one of the subsequent downstream of the heated environment of branches executed, at least partially coincident with the step of at least part of the pipe and/or within a portion of the length of the pipe, at least in the same direction in cross-section, at least in the branch beam directly suitable to manifold exhaust of the heated medium and/or at least one of the previous branches of the beam.

22. Heat exchanger heat exchanger according to item 21, wherein the step of pipes in a row, at least part of the width of the branch beam directly to the exhaust from the manifold inlet of the heated medium exceeds step, at least part of the pipe in the series branches of the beam, directly suitable to manifold exhaust of the heated medium.

23. Heat exchanger heat exchanger according to item 21, wherein the step of pipes in a row, at least part of the width of the branch beam directly to the exhaust from the manifold supplying a heated medium, the smaller the step, at least part of the pipe in the series branches of the beam, directly appropriate to the collector drain load is by the environment.

24. Heat exchanger heat exchanger according to item 21, wherein the step of at least part of the beam pipe is made variable, at least in one direction of the cross section of the branch beam, for example, within the branches of a number of tubes of the bundle and/or between at least a part of the ranks of pipes on the height of the beam.

25. Heat exchanger heat exchanger according to item 21, wherein the internal branches or at least parts thereof, at least part of the rows of tubes of the bundle are made non-parallel to the external branches within their respective rows, and the gaps between the branches, at least part of the rows of tubes of the beam is performed while a variable width along the length of the branches, for example, wedge-shaped tapering and/or wedge-shaped widening.

26. Heat exchanger heat exchanger according to item 21, wherein the ratio of unequal steps adjacent pipe made different by at least 5% of the value of the smaller of them.

27. Heat exchanger heat exchanger according to item 21, wherein the displacer shell environment made in the form of a profiled panel with a flat plane, the inner surface of which is located between the reservoir inlet and outlet of the heated medium in the same plane with the outer plane of the tube sheets or in the form of a flat bar welded to the walls collect the s inlet and outlet of the heated environment, that its inner surface lies in the same plane with the outer plane of the tube plates, while the heat exchanger is supplied mounted on the bottom of the chassis unit discontinuously elements for heat-exchanger tubes in the outer branches of the beam in the form of distantsiruyutsa gratings, and mentioned the tubes are fed through holes distantsiruyutsa gratings, and subsequent rows of heat exchange tubes in the area of internal branches separated discontinuously straps folded form, which is attached to the racks set on the bottom, and, in addition, on the bottom of the case attached combs for at least the internal branches of the lower row of heat exchange tubes.

28. Heat exchanger heat exchanger according to item 21, wherein the cross-sectional area of each of the collector supply and discharge of the heated medium is 1.8 and 3.5 of the total area of the flow area of heat exchange tubes in the unit, and the collector supply and discharge of the heated medium is made with manholes-manholes, spaced from the bottom of the block, with manhole covers-manhole hinged to the casing inlet and outlet of the heated environment can be rotated in the plane perpendicular to the longitudinal axis of symmetry of the collector supply and discharge of the heated medium, and on the inner walls of the of electoral inlet and outlet of the heated medium there are support, forming a ladder for inspection and maintenance of the reservoir inlet and outlet of the heated medium pipe and boards.

29. Heat exchanger heat exchanger according to item 21, characterized in that it includes means for attaching the diffuser inlet and confuser for removal of cooling medium, installed on the opposite side elements of the spatial framework of the unit, as well as the brackets for attaching the outer insulation.

30. Heat exchanger heat exchanger - block-section of the heater, characterized in that it contains a multi-row bundle of heat exchange tubes, consisting of at least two packages of two-way U-shaped tubes forming within each package dvuhvetvevym, for example, the horizontal rows of tubes, distanceremaining within rows and between rows from each other, a manifold inlet and a manifold outlet of the heated medium and located between at least one overflow chamber, and a manifold inlet and a manifold outlet of the heated medium, and an overflow chamber is connected to the heat exchange tubes of a common pipe Board or separate pipe boards, at least part of which is, or which forms part of a wall fence collector inlet and exhaust manifold heated medium and p is rauschnot camera, moreover, at least in one direction in the cross section of the beam, at least part of the pipe and/or within a portion of the length of the pipe, at least in the branch beam directly to the exhaust from the manifold inlet of the heated medium, and/or by-pass chamber, and/or at least one of the subsequent downstream of the heated medium branches, made at least partially coincident with the step of at least part of the pipe and/or within a portion of the length of the pipe, at least in the same direction in the cross section, at least in the branch beam directly suitable to manifold exhaust of the heated medium and/or the bypass chamber, and/or at least one of the previous branches of the beam.

31. Heat exchanger heat exchanger according to item 30, wherein the step of pipes in a row, at least part of the width of the branch beam directly to the exhaust from the manifold inlet of the heated medium and/or from the bypass chamber exceeds step, at least part of the pipe in the series branches of the beam, directly suitable to manifold exhaust of the heated medium and/or to bypass the camera.

32. Heat exchanger heat exchanger according to item 30, wherein the step of pipes in a row, at least part of the width of the branch beam directly to the exhaust from the manifold inlet of the heated medium and/or atirauskay camera, fewer steps, at least part of the pipe in the series branches of the beam, directly suitable to manifold exhaust of the heated medium and/or to bypass the camera.

33. Heat exchanger heat exchanger according to item 30, wherein the step of at least part of the beam pipe is made variable, at least in one direction of the cross section of the branch beam, for example, within the branches of a number of tubes of the bundle and/or between at least a part of the ranks of pipes on the height of the beam.

34. Heat exchanger heat exchanger according to item 30, wherein the ratio of unequal steps adjacent pipe made different by at least 5% of the value of the smaller of them.



 

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