Mode of manufacturing of a heat exchanging section of a gas air cooling apparatus(variants) and a heat exchanging section of an gas air cooling apparatus(variants)

FIELD: the invention is designed for application in energy engineering namely in the technology of manufacturing and construction of heat exchanging sections of a gas air cooling apparatus.

SUBSTANCE: the mode of manufacturing of a heat exchanging section of a gas air cooling apparatus includes manufacturing predominantly on a loft of the lateral walls of the frame of the

section with wall displacers-cowls of air environment, assembling on a slip with support poles of the elements of the frame of the section - lateral walls, lower transversal beams and gas input-output chambers forming gables of the frame and also of frame rigidity elements with the following packing of the multi-row bundle with single-passing finned heat exchanging tubes with forming with them and the gas input-output chambers of a vessel working under pressure, installation of upper transversal beams and carrying out hydraulic tests of the assembled section. At that the terminal poles of the slip are executed with locating their leaning sites at different levels with height difference making ( 1,1-4,6)d, where d - an interior diameter of a tube of the bundle and at assembling the frame the gas input-output chambers are installed on the final poles of the slip.

The heat exchanging section of the gas air cooling apparatus is fabricated in accord with above indicated mode. The mode of manufacturing of the heat exchanging section of the gas air cooling apparatus includes manufacturing on the loft of the lateral walls of the frame of the section with wall dispersers-cowls of air environment, and also elements of rigidity of the frame, assembling on the loft with support poles of the elements of the frame - lateral walls , lower transversal beams and forming gables of the walls of the frame of the chambers of input-output of the gas and also of the elements of rigidity of the frame with following packing of the multi-row bundle out of single-passing finned heat exchanging tubes forming with their help and the gas input-output chambers of a vessel working under pressure, installation of upper transversal beams and carrying out of hydraulic tests of the assembled section. At that the low and the upper transversal beams of the frame of the section are installed along the length of the lateral walls with spacing overall of height marks, equal (0,12-),51)d, where d - an interior diameter of the tube of the bundle and cuts of different height predominantly for dimensions of the transversal section of the chambers are made for installation of gas input-output chambers on the final plots of the lateral walls in the upper belt and the overall part of the height of the walls. The heat exchanging section of the gas air cooling apparatus is characterized with the fact that it is manufactured in accord with this mode.

EFFECT: allows to increase manufacturability of fabricating of the heat exchanging sections at simultaneous lowering of metal consuming of construction, simplification of the process of fabricating and lowering labor-intensiveness.

13 cl, 10 dwg .

 

The invention relates to power engineering, in particular to the technology and design of the heat exchange sections of the air cooling apparatus of the gas.

A known method of manufacturing a section of the heat exchanger and the section made in this way (SU # 1759592). The method includes manufacturing of panels and the packing section of the heat exchanger tubes.

The closest analogue of the invention is a method of manufacturing and the section of the air cooling unit (ACU) gas (see Fundamentals of calculation and design of heat exchanger for air cooling. edit Webcounter, Anelssono, St. Petersburg: Nedra - 1996, p.84, RIS), this section is a vessel operating under pressure, and contains a side wall of the frame partition wall displacers - fairing air, the chamber inlet and a gas outlet forming end walls of the frame and the stiffening frame and mattress bundle, consisting of the single finned heat exchange tubes.

The objective of the present invention is to reduce the complexity of manufacturing and material design heat transfer section, improving manufacturability, and reduced caused hydraulic losses.

The task is part of the method according to the first embodiment of the invention is solved due to the fact that the manual of the heat exchange section air cooler gas, according to the invention includes the manufacture on the Plaza side walls of the frame partition wall displacers - fairing air, the Assembly which supports the frame elements of the frame sections of the side walls, the lower cross-beams and forming an end wall frame cameras inlet and gas outlet, and also the stiffening of the frame, followed by the gasket multi beam from a single finned heat exchange tubes with their education and chambers of gas entry and exit of the vessel, working under pressure, install the upper cross-beams and hydraulic testing of the mounted section, and end-bearing piles do with the location of their sites support different levels with a difference heights, component (1,1-4,6) d, where d is the internal pipe diameter beam, and when the frame Assembly chamber inlet and gas outlet mounted on end bearing piles.

The side walls of the frame can be manufactured by installing their billets on the Plaza with fixing clamps, mainly in a vertical position with the subsequent attachment thereto of displacers - fairings that can perform mainly of curved profile and connect with a gradient from one end of each wall to another, determined by the ratio of the difference of the same name altitude chambers of gas entry and exit to the races is the being between them facing the beam pipe walls.

Upper and lower transverse beams of the frame sections can be set in increments of axes along the length of the side walls, pillars (0,08-0,15) L, where L is the pipe length of the beam between the cameras input and output gas meters

The gasket of the first number of the multiple beam from a single finned tubes can produce preferably prior to installation on the upper zone of the lower transverse beams distantsiruyutsa folded items, mostly wavy providing a given step of the tubes in the row.

The tubes of each row, starting from second on the height of the beam can be separated from each other by the same or similar discontinuously elements in the specified step of the tubes in the row and between rows.

Pipes in the beam can be laid to ensure the transfer of load from the pipe through distantsiruyasj elements on the frame section.

The upper cross beam of the frame can be set by adjunction or clamped to the pipe on the top row of beam mainly through distantsiruyasj the elements arranged on the tubes of the upper row of the bundle.

The task in the part of the second object of the invention is a heat transfer section, is solved due to the fact that the heat exchange section air cooler gas, according to the invention made the first variant of the method of manufacturing section, described above.

The task is part of the third object of the invention is the method according to the second variant is solved by a method for manufacturing the heat exchange section air cooler gas, according to the invention, includes the manufacturer at the Plaza of the side walls of the frame partition wall displacers-fairing air, the Assembly which supports the frame elements of the frame sections of the side walls, the lower cross-beams and forming an end wall frame cameras inlet and gas outlet, and also the stiffening of the frame, followed by the gasket multi beam from a single finned heat exchange tubes with their education and chambers of gas entry and exit of the vessel, working under pressure, install the upper cross-beams and holding hydraulic testing of the mounted section, and the upper and lower transverse beams of the frame sections establish the length of the side walls with a step gradient of elevations equal to (0,12-0,51)d, where d is the internal pipe diameter beam for mounting the camera entry and exit of gas on end parts of the side walls in the upper zone and the greatest part of the height of the walls perform different height cuts mainly under the dimensions of the cross section of the chambers.

The cutouts can set the reference tables for the camera entry and exit of gas from the ribs, which serve preferably in the form of struts.

The side of the new wall frame can be manufactured by installing their billets on the Plaza with fixing clamps, mainly in a vertical position with the subsequent attachment thereto of displacers-fairings that can perform mainly of curved profile and install from one end of each wall to the other with a slope determined by the difference of the same name altitude chambers of gas entry and exit to the distance between them facing the beam pipe walls.

Upper and lower transverse beams of the frame sections can be set in increments of axes along the length of the side walls, pillars (0,08-0,15)L, where L is the pipe length of the beam between the cameras input and output gas meters

The gasket of the first number of the multiple beam from a single finned tubes can produce preferably prior to installation on the upper zone of the lower transverse beams distantsiruyutsa folded items, mostly wavy providing a given step of the tubes in the row.

The tubes of each row, starting from second on the height of the beam can be separated from each other by the same or similar discontinuously elements in the specified step of the tubes in the row and between rows.

Pipes in the beam can be laid to ensure the transfer of load from the pipe through distantsiruyasj elements on the frame section.

The upper cross beam of the frame can be set by adjunction or clamped to the pipe on the top row of beam advantages the public through distantsiruyasj elements, laid pipes on the top row of the bundle.

The task in part the fourth object of the invention is a heat transfer section on the second version of its execution is solved due to the fact that the heat exchange section air cooler gas, according to the invention, made a second embodiment of the method of manufacturing section, described above.

The technical result provided by the invention: methods and devices manufactured by the proposed methods is to improve the manufacturability of the heat exchange sections with simultaneous reduction of metal construction, simplification of the manufacturing process and reduce the complexity. In addition, increases the heat output section AVO gas or section by reducing hydraulic losses in the cell and therefore the energy costs for pumping cooling medium.

The invention is illustrated by drawings, where

1 shows a heat-exchange section AVO gas main view;

figure 2 - the same, top view;

figure 3 - section a-a figure 1;

figure 4 - frame heat exchanger section;

figure 5 - frame heat exchanger section, the main view;

figure 6 - camera input or output AVO gas;

7 - tube plate camera input or output AVO gas;

on Fig - node B in Fig.6;

figure 9 - node In f is 6;

figure 10 - node G in figure 5.

Heat-exchange section consists of a frame 1 formed by side walls in the form of channel bars 2, on the inner surface of which is placed displacers-fairings 3, and the lower 4 and upper 5 beams arranged between the side walls 6. Inside the frame 1 heat transfer section posted by finned heat exchange tubes 7, forming a multilayered beam. Camera input 8 and output camera 9 gas consists of side walls 10 and 11, top wall 12, bottom wall 13, end walls 14 and power dividers 15 with openings 16 for the passage through them of the gas flow. One of the side walls 10 camera 8 or 9 is made with holes 17 and forms a pipe Board, in which are fixed the ends of heat transfer tubes 7. The other side wall 11 forms the outer Board and is made with the screw holes 18, coaxial with the holes in the tube plate. The screw holes 18 are designed to provide opportunities for the introduction of technological tools to secure the ends of the tubes in the tube plate and the subsequent installation of the plugs 19 mainly on the thread. In the bottom 13 and/or in the top 12 the walls of the chambers 8 or 9 holes 20 in nozzles mainly with flanges for connection with pipe collectors respectively inlet or gas outlet.

In the first embodiment of the method of heat transfer section of the apparatus in zaushnogo cooling gas is produced as follows.

On the Plaza is made of the side walls 10 and 11 of the frame 1 of the partition wall displacers-fairing 3 air environment. The side walls 10 and 11 of the frame 1 can be manufactured by installing their billets on the Plaza with fixing clamps, mainly in a vertical position with the subsequent attachment thereto of displacers-fairings 3, which can perform mainly of curved profile and connect with a gradient from one end of each wall to another, determined by the ratio of the difference of the same name altitude chambers of gas entry and exit to the distance between them facing the beam pipe walls.

On the pillars of slipway to produce the Assembly of the frame elements of the 1st section of the fabricated elements of the side walls 2, a bottom transverse beams 4 and forming the end wall frame cameras 8 and 9 of the gas entry and exit, as well as the stiffening of the frame. End bearing piles do with the location of their sites support different levels with a difference of elevation component (1,1-4,6)d, where d is the internal pipe diameter beam, and when the frame Assembly 1 camera input 8 and the camera output 9 gas set on end bearing piles.

Then carry out the gasket frame single finned heat exchange tubes 7 with the formation of the multilayered beam single pipe, with camera input 8 and the camera output 9 gas compatible with the but with multi-row bundle of heat exchange tubes to form the vessel, working under pressure. The gasket of the first number of the multiple beam from a single finned tubes 7 can produce preferably prior to installation on the upper zone of the lower transverse beams 4 distantsiruyutsa folded elements 21, mostly wavy providing a given step of the pipe 7 in a row.

Pipe 7 of each row, starting from second on the height of the beam, separated from each other by the same or similar discontinuously elements in the specified step of the pipe 7 in a row and between rows, and the pipe is placed with ensuring the transfer of load through distantsiruyasj elements 21 on the frame 1 of the section.

After you complete gaskets set top cross beam 5 by adjunction or clamped to the pipe 7 of the top row of beam mainly through distantsiruyasj elements 21, arranged on the tubes 7 of the top row of the bundle.

The lower 4 and upper 5 transverse beams of the frame 1 of the section can be set in increments of axes along the length of the side walls 2, components (0,08-0,15)L, where L is the length of the pipe 7 of the beam between the chambers 8 and 9 of the inlet and outlet gas meters

Next, the mounted section is subjected to hydraulic testing.

According to the second variant of the method of the heat exchange section air cooler gas is produced as follows.

On the Plaza is made of the side walls 10 and 11 of the frame 1 CE is tion with wall displacers-fairing 3 air environment. The side walls 10 and 11 of the frame 1 can be manufactured by installing their billets on the Plaza with fixing clamps, mainly in a vertical position with the subsequent attachment thereto of displacers - fairings 3, which can perform mainly of curved profile and connect with a gradient from one end of each wall to another, determined by the ratio of the difference of the same name altitude chambers 8 and 9 of the gas entry and exit to the distance between them facing the tube bundle walls 7.

On the pillars of slipway to produce the Assembly of the frame elements of the 1st section of the fabricated elements of the side walls 2, a bottom transverse beams 4 and forming the end wall 14 of the frame 1 of the chambers 8 and 9 of the gas entry and exit, as well as the stiffening of the frame 1. The lower 4 and upper 5 transverse beams of the frame 1 section sets the length of the side walls 6 with a step gradient of elevations equal to (0,12-0,51)d, where d is the internal diameter of the pipe 7 of the beam, to install cameras 8 and 9 of the gas entry and exit on end parts of the side walls 6 in the upper zone and the greatest part of the height of the walls perform different height cutouts 22 mainly under the dimensions of the cross section of the chambers 8, 9. The cutouts 22 may set the reference tables 23 the cameras 8, 9 input and output gas from the ribs, which serve preferably in the form of struts 24.

Boko is s wall 6 of the frame 1 can be manufactured by installing their billets on the Plaza with fixing clamps, mainly in a vertical position with the subsequent attachment thereto of displacers-fairings 3 of the bent profile, ustanovelnnyh from one end of each wall to the other with a slope determined by the difference of the same name altitude chambers 8, 9 of the gas entry and exit to the distance between them facing the beam pipe walls.

The gasket of the first number of the multiple beam from a single finned tubes 7 can produce preferably prior to installation on the upper zone of the lower transverse beams 4 distantsiruyutsa folded elements 21, mostly wavy providing a given step of the pipe 7 in a row.

Pipe 7 of each row, starting from second on the height of the beam can be separated from each other by the same or similar discontinuously elements 21 that provides the specified step of the pipe 7 in a row and between rows.

Pipe 7 in the beam can be laid to ensure the transfer of load from the pipe 7 through distantsiruyasj elements 21 on the frame 1 of the section.

The upper cross beam 5 of the frame can be set by adjunction or clamped to the pipe 7 of the top row of beam mainly through distantsiruyasj elements 21, arranged on the tubes 7 of the top row of the bundle.

Suggested methods of making heat-exchange sections are used to improve manufacturability and reduce the complexity and is for drinking, preparing sections.

Made the claimed methods, the design of the heat transfer section has a low metal content and high heating efficiency by reducing hydraulic losses and, accordingly, the energy costs for pumping cooling medium.

1. A method of manufacturing a heat exchange section air cooler gas, characterized in that it includes manufacturing mainly on the Plaza side walls of the frame partition wall displacers-fairing air, the Assembly which supports the frame elements of the frame sections of the side walls, the lower cross-beams and forming an end wall frame cameras inlet and gas outlet, and also the stiffening of the frame, followed by the gasket multi beam from a single finned heat exchange tubes with their education and chambers of gas entry and exit of the vessel, working under pressure, install the upper cross-beams and hydraulic testing of the mounted section, and end support the slipway do with the location of their sites support different levels with a difference of elevation component (1,1-4,6)d, where d is the internal pipe diameter beam, and when the frame Assembly chamber inlet and the chamber gas outlet mounted on end bearing piles.

2. The method according to claim 1, characterized in that the side with the received frame is made by setting on the Plaza of their blanks with fixing clamps mainly in a vertical position with the subsequent attachment thereto of displacers-fairings performing mainly of curved profile and set with a gradient from one end of each wall to another, determined by the ratio of the difference of the same name altitude chamber inlet and the chamber gas outlet to the distance between them facing the beam pipe walls.

3. The method according to claim 1, characterized in that the lower and upper cross beam of the frame sections set in increments of axes along the length of the side walls, pillars (0,08-0,15)L, where L is the pipe length of the beam between the cameras input and output gas meters

4. The method according to claim 1, characterized in that the gasket of the first number of the multiple beam from a single finned tubes produce preferably prior to installation on the upper zone of the lower transverse beams distantsiruyutsa folded items, mostly wavy providing a given step of the tubes in the row.

5. The method according to claim 4, characterized in that the tubes of each row, starting from second on the height of the beam, separated from each other by the same or similar discontinuously elements in the specified step of the tubes in the row and between rows.

6. The method according to claim 4, characterized in that the pipes in the bundle stack with transmitting the load from the pipe through distantsiruyasj elements on the frame section.

7. The method according to claim 4, characterized in that the upper cross beam of the frame set with primiceri the m or clamped to the pipe on the top row of beam mainly through distantsiruyasj elements, laid pipes on the top row of the bundle.

8. The heat exchange section air cooler gas, characterized in that it is made by a method according to any one of claims 1 to 7.

9. A method of manufacturing a heat exchange section air cooler gas, characterized in that it includes the manufacturer at the Plaza of the side walls of the frame partition wall displacers-fairing air, the Assembly which supports the frame elements of the frame sections of the side walls, the lower cross-beams and forming an end wall frame cameras inlet and gas outlet, and also the stiffening of the frame, followed by the gasket multi beam from a single finned heat exchange tubes with their education and chambers of gas entry and exit of vessels under pressure, the upper cross-beams and hydraulic testing of the mounted sections, with the lower and the upper cross beam of the frame sections establish the length of the side walls with a step gradient of elevations equal to (0,12-0,51)d, where d is the internal pipe diameter beam, and for mounting the camera entry and exit of gas on end parts of the side walls in the upper zone and the greatest part of the height of the walls perform different height cuts mainly under the dimensions of the cross section of the chambers.

10. The method according to claim 9, different is the present, in the cut-set reference tables for the camera entry and exit of gas from the ribs, which serve preferably in the form of struts.

11. The method according to claim 9, that the side walls of the frame are made by the installation of the Plaza of their blanks with fixing clamps mainly in a vertical position with the subsequent attachment thereto of displacers-fairings, which operates mainly from curved profile and install from one end of each wall to the other with a slope determined by the difference of the same name altitude chamber inlet and the chamber gas outlet to the distance between them facing the beam pipe walls.

12. The method according to claim 9, characterized in that the lower and upper cross beam of the frame sections set in increments of axes along the length of the side walls, pillars (0,08-0,15)L, where L is the pipe length of the beam between the cameras input and output gas meters

13. The method of claim 9, characterized in that the gasket of the first number of the multiple beam from a single finned tubes produce preferably prior to installation on the upper zone of the lower transverse beams distantsiruyutsa folded items, mostly wavy providing a given step of the tubes in the row.

14. The method according to item 13, wherein the tubes of each row, starting from second on the height of the beam, separated from each other so the mi same or similar discontinuously elements, providing a given step of the tubes in the row and between rows.

15. The method according to item 13, wherein the tubes in the bundle is placed, ensuring that transfer the load from the pipe through distantsiruyasj elements on the frame section.

16. The method according to item 13, wherein the upper cross beam of the frame set by adjunction or clamped to the pipe on the top row of beam mainly through distantsiruyasj the elements arranged on the tubes of the upper row of the bundle.

17. The heat exchange section air cooler gas, characterized in that it is made by a method according to any of p-16.



 

Same patents:

FIELD: the invention is designed for application in the field of heat exchange-and-power engineering namely in heat exchanging apparatus of the type of a gas air cooling apparatus.

SUBSTANCE: the heat exchanging apparatus of the type of a gas air cooling apparatus has an arrangement for drawing off and feeding into the zone of the bundle of heat exchanging tubes of exterior heat exchanging environment fulfilled in the shape of a vessel open from the side of the gables. The vessel is formed in the zone of location of the heat exchanging tubes with the help of lateral and gables walls of the heat exchanging section of the apparatus and a multi-row bundle of heat exchanging tubes. At the input it is fulfilled with multi-mouth section formed by the mouths of the casings of ventilators for feeding the cooling environment . Each of them has a baffle with a round transversal section in the zone of locating the ventilator and a multi angular predominantly rectangular transversal section in the zone adjoining to the heat exchanging section c with at least two opposite edges adjoining to the corresponding contact plots of the lateral walls of the heat exchanging section. AT that the lateral walls from the interior side of the vessel are provided with longitudinal cowl-displacers in the shape of the elements forming in the vessel extensive projections at least on the most part of the length of the interior wall of the vessel and the gables of the vessel are formed with the help of the tube plates of the gas input-output chambers of the heat exchanging section at least at the part of their height making up 0,5-0,85 of the height of the lateral walls. The tube plates are installed as piers of different height in the final ends of the plots of the lateral walls of the vessel. AT that the correlation of the total square of the multi mouth section at the input of the vessel formed with the help of mouths of the casings of the ventilators in the vessel to the square of the section of the vessel at its output makes according to overall dimensions of the vessel ∑Flow:FUPPER=0,42-0,9 and in the flatness of aerodynamic shading formed by the upper row of the bundle of the heat exchanging tubes the mentioned correlation makes 0,51±11,5% where ∑low- total square of the multi mouth input section of the vessel, m2; F upper - the dimension square of the working section of the vessel in its upper part without taking into consideration the aerodynamics shading developed by the heat exchanging tubes of the bundle,m2.

EFFECT: allows to increase efficiency of a gas air cooling apparatus due to constructive decisions of the walls of a vessel securing better aerodynamics of passing of the cooling environment including wall zones of the vessel and also in high adaptability of the system of the vessel to seasonal changes in exterior environment and mass of the cooling gas passing through the heat exchanging tubes of the bundle of the vessel at the expense of optimization of correlation of parameters of passing sections of the vessel and of the whole apparatus.

4 cl, 3 dwg

FIELD: the invention is designed for application in heat exchanging apparatus namely in heat exchanging sections and may be used in air cooling apparatus.

SUBSTANCE: the heat exchanging section of a gas air cooling apparatus has a frame consisting of lateral walls provided with wall displacers of the flow of exterior cooling environment predominantly air, upper and low beams and also chambers with tube plates for inputting and outputting of the cooling gas. In the tube plates the ends of finned heat exchanging tubes are choked up. These tubes develop a multi-row, single passing bundle. AT that each chamber of input and output of gas is located correspondingly on the input and the output of the heat exchanging tubes and together with them a vessel working under pressure. At that the chamber of input or output of gas is formed by corresponding tube plate and the parallel exterior plate which has transparent openings provided with removable corks. These openings are coaxial with the openings in the tube plate and the openings in the tube plates are located in rows at the height of the section with an axial pitch making up (0,95-1,35)-d and with axial pitch in the rows adjacent according the height making (0,91-1,21)-d where d - an exterior diameter of the finning of the heat exchanging tube. At that the openings in each row are displaced on 0,4-0,6 of the pitch from the axles of the openings in the row relatively to the adjacent rows according to the height. The number of the heat exchanging tubes in the direction of the vector of the flow of the exterior cooling environment predominantly air makes from 4 to 14 and in the row the number of the heat exchanging tubes edgewise of the section exceeds in 4-9 times the number of the heat exchanging tubes located in series along the way of the mentioned flow of exterior cooling environment predominantly air.

EFFECT: allows to increase efficiency of heat exchanging at minimum metal consuming in the construction due to optimization of the parameters of heat exchanging elements.

19 cl, 6 dwg

FIELD: the invention refers to heat-and-power engineering particularly to the rows of heat exchanging tubes and may be used in gas air cooling apparatus.

SUBSTANCE: the tube row of the gas air cooling apparatus consists of finned tubes successively located in a row with spacing in axes making 1,7-3,4 diameter of the body of the tube without taking into consideration the diameter of fins. At that the finning of each tube is fulfilled transversely relatively to the central longitudinal axle of the tube and located under an angle to the mentioned axle. The central longitudinal axes of the tubes are oriented predominantly in parallel and located in a conditioned flatness normal to the vector of the flow of the exterior cooling environment, predominantly air. At that the tubes are located to form the flow in the projection of the mentioned conditioned flatness of aerodynamics shading with various aerodynamics transparency consisting of plots of complete aerodynamics opaque corresponding to projections on the mentioned flatness of the bodies of the tubes without taking the finning into account and the plots of incomplete aerodynamics transparency each limited from one side with a conditioned direct line passing along the tops of the fins and from the other side - with the contour of the body of the tube to the base of the fins. At that the tubes in the row are accepted at the condition according to which correlation on the unit of the square of the mentioned flatness of total square of the mentioned plots with various aerodynamics opaque compose correspondingly (0,25-0,52):(0,29-0,58).

EFFECT: allows to increase thermal aerodynamics characteristics of the tube row of the gas air cooling apparatus and improve conditions for streamlining tubes in the row with the exterior cooling environment and provides increasing thermal effectiveness of the apparatus at minimal metal consuming by the construction.

3 cl, 3 dwg

FIELD: the invention is designed for application in heat-and-power engineering particular in convection heating surfaces namely in the bundle of finned heat exchanging tubes and may be used in a gas air cooling apparatus.

SUBSTANCE: the bundle of finned heat exchanging tubes for a gas air cooling apparatus has tubes located in rows placed one over another with displacement of the tubes in each row relatively to the tubes in the rows adjacent throughout the height of the bundle. The rows of the tubes are separated one from another by distancing elements in the shape of plates with prominent and concave plots placed interchangeably forming supporting sites for the rows of tubes adjacent throughout the height of the bundle. At that the tubes are predominately fulfilled as single-pass ones with finning. They form in the limits of each row in projection on conditional flatness normal to the vector of the flow of an exterior heat exchanging environment inputting to the tubes predominantly cooling air flow. The flow passes through the central longitudinal axle of the tubes of each row of the plots of complete aerodynamics opaque corresponding to projections on the indicated flatness of the tubes without taking into account the finning, the plots of complete aerodynamics transparency corresponding to the projections on the indicated gaps between the edges of the fins directed to each other and adjacent to the row of the pipes and the plots of incomplete aerodynamics transparency. Each plot is limited from one side with conditional direct line passing over the tops of the fins and the other side - with the contour of the body of the tube along the base of the fins. At this the specific correlation of the mentioned conditional flatness of the unit of the area to the mentioned conditional flatness of the summary of the square projections of the indicated areas with various aerodynamics transparency in each row composes correspondingly (0,85-1,15): (1,82-2,17): (1,80-2,190).

EFFECT: allows to increase thermal effectiveness due to optimization of parameters of the heat exchanging elements.

4 dwg, 19 cl

FIELD: heat and power engineering, possibly manufacture of heat exchange units of apparatuses for recovering exhaust gas heat of aggregates, particularly for heating air by means of exhaust combustion products from compressor of gas turbine plant of gas pumping aggregate in compressor stations of main gas conduits.

SUBSTANCE: method comprises steps of making in manufacturing stations blanks of shells of housings manifolds for supplying and discharging heated air, tubes and tube walls, members of unit carcass; bending tubes for forming four-way bent in horizontal plane tubes having successively changed along length two outer and two inner branches and three elbows joining said branches; in each, mainly in odd row forming two tubes with bent portions having length πR where R - radius of tube; forming bent portions of one tube in its inner elbow and forming bent portions of other tube in two outer elbows; forming other tubes of odd and even rows with bent portions having length πR/2 and joining them by means of rectilinear inserts with successively changed length values. In each row two inner branches of each next tube of row with joining elbow are formed in such a way that they are inscribed from outside into bending formed by respective branches and by joining them elbow of previous tube of said row. Minimum-length tube of each row has development length lmin consisting at least 0.75 of development length lmax of maximum -length tube of row. After making bent tubes, said tubes are pressurized; manifolds for supplying and discharging air are assembled and tube walls are welded-in to them. Unit carcass and manifolds for supplying and discharging air are mounted; tubes are packed and they are again pressurized together with manifolds.

EFFECT: enhanced effectiveness of manufacturing process.

10 cl, 14 dwg

FIELD: power machine engineering, possibly manufacture of heat exchange apparatuses, namely heat exchange units of modular or modular-sectioned heat exchange apparatuses of regenerative air heaters.

SUBSTANCE: method of manufacturing intermediate, upper and lower heat exchange units comprises steps of making in manufacturing stations blanks of shells of housings of manifolds, tubes, tube walls and members of unit carcass; bending tubes for forming multi-way bent in plane tubes; pressurizing bent tubes; assembling manifolds for supplying and discharging air and welding-in tube walls to them; mounting unit carcass and manifolds; packing tube bundle and again pressurizing tubes. Unit carcass and manifolds for supplying and discharging air are mounted in fixture at installing on plate fixture of portal frame with struts and upper beam, additional struts with detachable beams provided with coordinate members with supporting vertical surfaces and additional struts for fixing mounted struts of unit carcass. At manufacturing lower heat exchange unit, two-step plate of fixture is used. At mounting manifolds for supplying and discharging air, their ends are fixed along contours and three-dimensional position of housing of each manifold is fixed by means of coordinate and supporting discs secured from lower side of detachable lower beam of portal frame coaxially to central vertical axes of manifolds.

EFFECT: enhanced effectiveness of manufacturing process.

16 cl, 16 dwg

FIELD: producing fuel assemblies from fuel elements.

SUBSTANCE: fuel elements held in accumulating tank installed under machine-tool incorporatying two-coordinate positioner and linear drive with pusher provided with collet chuck are vertically inserted in parallel into fuel assembly frame. Distance between spacer grids is increased from 250 to 500 mm and more.

EFFECT: reduced material input due to shorter distance between fuel assembly spacer grids.

5 cl, 6 dwg

FIELD: heat and power engineering, possibly manufacture of apparatuses for recovering heat of exhaust gases of aggregates, namely for heating air by means of exhaust combustion products from compressor of gas turbine aggregate.

SUBSTANCE: method comprises steps of placing in stock carcass of heat exchange unit and of shell of manifolds for supplying and discharging heated air to which tube plates are welded-in; mounting between shells panel of member for displacing inter-tube fluid having flat portion arranged in plane of outer surfaces of tube plates; joining displacing member with shells and joining shells with carcass; then putting in heat exchange unit four-way heat exchanging tubes row-by-row from downwards to upwards; passing each tube of each outer branch through openings of spacing grids fixed on carcass of heat exchange unit; placing inner branches of heat exchanging tubes onto comb secured to bottom; separating inner branches of next rows by means of spacing strips and arranging inlet and outlet ends of tubes respectively in tube plates of shells of manifolds for supplying and discharging heated air; then securing ends of heat exchanging tubes in tube plates and fastening end wall of heat exchange unit.

EFFECT: enhanced accuracy of assembling, lowered labor consumption of working operations.

15 cl, 14 dwg

FIELD: power production machine engineering, possibly manufacture of heat exchange apparatuses such as regeneration type air heaters.

SUBSTANCE: complex includes connected according manufacturing process: station for making tube walls, station for making shells of housing of manifolds for supplying and discharging air, station for bending tubes and station for assembling heat exchange units. Station for bending tubes is connected according to manufacturing process with station for assembling units at least through one stationary or moved apparatus for separate (according to size) vertical storage of bent tubes of bundle before their placing in unit. Bending station includes tube bending machine tool and apparatus for feeding to bending zone of said station tubes and mandrel with rod. Station for assembling units includes at least two stocks; one stock is designed for assembling upper and intermediate units, and at least one is designed for assembling lower unit. Each stock is provided with portal framework having detachable portal beam. On lower side of said beam are mounted: coordinate-supporting discs and apparatus for aligning and fixing in target position tube walls in shell of housing of each manifold for supplying and discharging air.

EFFECT: enhanced efficiency of manufacturing complex.

6 cl, 9 dwg

The invention relates to the field of power engineering and can be used in the manufacture of air cooling units, mainly used in chemical and gas industry

The invention relates to a process of manufacturing the heat sink caissons used in the melting units, in particular in the incineration of solid waste for cooling the walls and ceilings in conditions of high temperatures and aggressive environments

The invention relates to the field of power engineering

The invention relates to nuclear energy and may find application in the manufacturing heads, shanks and Assembly of fuel elements (FE) in the fuel Assembly (FA) models 0401, 493 for a nuclear reactor VVER-1000 and VVER-440

The invention relates to a mechanical Assembly production, in particular to machines for the Assembly of fuel elements in the fuel assemblies, primarily for commercial reactors of VVER

FIELD: power production machine engineering, possibly manufacture of heat exchange apparatuses such as regeneration type air heaters.

SUBSTANCE: complex includes connected according manufacturing process: station for making tube walls, station for making shells of housing of manifolds for supplying and discharging air, station for bending tubes and station for assembling heat exchange units. Station for bending tubes is connected according to manufacturing process with station for assembling units at least through one stationary or moved apparatus for separate (according to size) vertical storage of bent tubes of bundle before their placing in unit. Bending station includes tube bending machine tool and apparatus for feeding to bending zone of said station tubes and mandrel with rod. Station for assembling units includes at least two stocks; one stock is designed for assembling upper and intermediate units, and at least one is designed for assembling lower unit. Each stock is provided with portal framework having detachable portal beam. On lower side of said beam are mounted: coordinate-supporting discs and apparatus for aligning and fixing in target position tube walls in shell of housing of each manifold for supplying and discharging air.

EFFECT: enhanced efficiency of manufacturing complex.

6 cl, 9 dwg

FIELD: heat and power engineering, possibly manufacture of apparatuses for recovering heat of exhaust gases of aggregates, namely for heating air by means of exhaust combustion products from compressor of gas turbine aggregate.

SUBSTANCE: method comprises steps of placing in stock carcass of heat exchange unit and of shell of manifolds for supplying and discharging heated air to which tube plates are welded-in; mounting between shells panel of member for displacing inter-tube fluid having flat portion arranged in plane of outer surfaces of tube plates; joining displacing member with shells and joining shells with carcass; then putting in heat exchange unit four-way heat exchanging tubes row-by-row from downwards to upwards; passing each tube of each outer branch through openings of spacing grids fixed on carcass of heat exchange unit; placing inner branches of heat exchanging tubes onto comb secured to bottom; separating inner branches of next rows by means of spacing strips and arranging inlet and outlet ends of tubes respectively in tube plates of shells of manifolds for supplying and discharging heated air; then securing ends of heat exchanging tubes in tube plates and fastening end wall of heat exchange unit.

EFFECT: enhanced accuracy of assembling, lowered labor consumption of working operations.

15 cl, 14 dwg

FIELD: producing fuel assemblies from fuel elements.

SUBSTANCE: fuel elements held in accumulating tank installed under machine-tool incorporatying two-coordinate positioner and linear drive with pusher provided with collet chuck are vertically inserted in parallel into fuel assembly frame. Distance between spacer grids is increased from 250 to 500 mm and more.

EFFECT: reduced material input due to shorter distance between fuel assembly spacer grids.

5 cl, 6 dwg

FIELD: power machine engineering, possibly manufacture of heat exchange apparatuses, namely heat exchange units of modular or modular-sectioned heat exchange apparatuses of regenerative air heaters.

SUBSTANCE: method of manufacturing intermediate, upper and lower heat exchange units comprises steps of making in manufacturing stations blanks of shells of housings of manifolds, tubes, tube walls and members of unit carcass; bending tubes for forming multi-way bent in plane tubes; pressurizing bent tubes; assembling manifolds for supplying and discharging air and welding-in tube walls to them; mounting unit carcass and manifolds; packing tube bundle and again pressurizing tubes. Unit carcass and manifolds for supplying and discharging air are mounted in fixture at installing on plate fixture of portal frame with struts and upper beam, additional struts with detachable beams provided with coordinate members with supporting vertical surfaces and additional struts for fixing mounted struts of unit carcass. At manufacturing lower heat exchange unit, two-step plate of fixture is used. At mounting manifolds for supplying and discharging air, their ends are fixed along contours and three-dimensional position of housing of each manifold is fixed by means of coordinate and supporting discs secured from lower side of detachable lower beam of portal frame coaxially to central vertical axes of manifolds.

EFFECT: enhanced effectiveness of manufacturing process.

16 cl, 16 dwg

FIELD: heat and power engineering, possibly manufacture of heat exchange units of apparatuses for recovering exhaust gas heat of aggregates, particularly for heating air by means of exhaust combustion products from compressor of gas turbine plant of gas pumping aggregate in compressor stations of main gas conduits.

SUBSTANCE: method comprises steps of making in manufacturing stations blanks of shells of housings manifolds for supplying and discharging heated air, tubes and tube walls, members of unit carcass; bending tubes for forming four-way bent in horizontal plane tubes having successively changed along length two outer and two inner branches and three elbows joining said branches; in each, mainly in odd row forming two tubes with bent portions having length πR where R - radius of tube; forming bent portions of one tube in its inner elbow and forming bent portions of other tube in two outer elbows; forming other tubes of odd and even rows with bent portions having length πR/2 and joining them by means of rectilinear inserts with successively changed length values. In each row two inner branches of each next tube of row with joining elbow are formed in such a way that they are inscribed from outside into bending formed by respective branches and by joining them elbow of previous tube of said row. Minimum-length tube of each row has development length lmin consisting at least 0.75 of development length lmax of maximum -length tube of row. After making bent tubes, said tubes are pressurized; manifolds for supplying and discharging air are assembled and tube walls are welded-in to them. Unit carcass and manifolds for supplying and discharging air are mounted; tubes are packed and they are again pressurized together with manifolds.

EFFECT: enhanced effectiveness of manufacturing process.

10 cl, 14 dwg

FIELD: the invention is designed for application in energy engineering namely in the technology of manufacturing and construction of heat exchanging sections of a gas air cooling apparatus.

SUBSTANCE: the mode of manufacturing of a heat exchanging section of a gas air cooling apparatus includes manufacturing predominantly on a loft of the lateral walls of the frame of the

section with wall displacers-cowls of air environment, assembling on a slip with support poles of the elements of the frame of the section - lateral walls, lower transversal beams and gas input-output chambers forming gables of the frame and also of frame rigidity elements with the following packing of the multi-row bundle with single-passing finned heat exchanging tubes with forming with them and the gas input-output chambers of a vessel working under pressure, installation of upper transversal beams and carrying out hydraulic tests of the assembled section. At that the terminal poles of the slip are executed with locating their leaning sites at different levels with height difference making ( 1,1-4,6)d, where d - an interior diameter of a tube of the bundle and at assembling the frame the gas input-output chambers are installed on the final poles of the slip.

The heat exchanging section of the gas air cooling apparatus is fabricated in accord with above indicated mode. The mode of manufacturing of the heat exchanging section of the gas air cooling apparatus includes manufacturing on the loft of the lateral walls of the frame of the section with wall dispersers-cowls of air environment, and also elements of rigidity of the frame, assembling on the loft with support poles of the elements of the frame - lateral walls , lower transversal beams and forming gables of the walls of the frame of the chambers of input-output of the gas and also of the elements of rigidity of the frame with following packing of the multi-row bundle out of single-passing finned heat exchanging tubes forming with their help and the gas input-output chambers of a vessel working under pressure, installation of upper transversal beams and carrying out of hydraulic tests of the assembled section. At that the low and the upper transversal beams of the frame of the section are installed along the length of the lateral walls with spacing overall of height marks, equal (0,12-),51)d, where d - an interior diameter of the tube of the bundle and cuts of different height predominantly for dimensions of the transversal section of the chambers are made for installation of gas input-output chambers on the final plots of the lateral walls in the upper belt and the overall part of the height of the walls. The heat exchanging section of the gas air cooling apparatus is characterized with the fact that it is manufactured in accord with this mode.

EFFECT: allows to increase manufacturability of fabricating of the heat exchanging sections at simultaneous lowering of metal consuming of construction, simplification of the process of fabricating and lowering labor-intensiveness.

13 cl, 10 dwg .

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