Heat exchange device

FIELD: heating.

SUBSTANCE: heat exchange device includes elements in the form of spirally wound pipes with alternating straight and ring-shaped sections located opposite each other. The elements are installed in each other with ring-shaped sections. The straight sections of adjacent elements in the heat exchange device are located on one side, and the ring-shaped sections are located on the other side; with that, the elements in the cross section of the heat exchange device are located about its axis in a circumferential direction, with orientation of the ring-shaped sections to the above said axis. The straight sections in the elements can be located in different planes at an angle to each other. In this case, rings of the ring-shaped sections have different diameters, which are maximum in the middle of the elements and minimum in its end sections. At alignment of direction of windings of the adjacent elements, the planes that adjoin the outer side of the ring-shaped sections intersect the axis of the heat exchange device at an acute angle. At mutually opposite direction of the windings of the adjacent elements, the above planes and the axis are parallel.

EFFECT: reduction of overall dimensions of the heat exchange device due to a sealed layout of adjacent elements in it; possibility of arranging it in cylindrical, annular, toroid-shaped and spherical cavities.

4 cl, 14 dwg

 

The invention relates to the field of power engineering and can be used in a wide range of both stationary and transport installations.

Known analogues of the heat transfer device consisting of adjacently located elements in the form of spirally wound tubes containing straight and annular sections and embedded past each other (see, for example, and.with. The USSR№254394; №278223; №330392).

It is also known heat transfer device containing elements in the form of a spiral wound tubes with alternating straight and annular sections, straight sections opposite the annular, with the introduction of elements into each other, the annular areas (see and.with. The USSR №312832).

This heat exchanger is characterized by a set of characteristics that are most similar to the set of existing features of the invention and is taken as a prototype.

The disadvantages of the known heat exchangers are:

- significant size due to the location of the straight sections at the adjacent elements from two sides, which limits the number of contiguous elements embedded in each other, to two;

the inability of the optimal layout of elements in a cylindrical, annular, toroidal and spherical cavities.

In order to reduce the size and expansion of layout capabilities in Teploobmennik device, containing the elements in the form of a spiral wound tubes with alternating straight and annular areas where direct sites are located opposite the annular and adjacent elements embedded in one another annular sections, all straight sections at the adjacent elements are located on one side. In this case, all annular areas are located on the other side with the introduction of this side adjacent elements to each other. The specified implementation determines the location of the elements in the cross section of the heat exchange device around the axis of the latter, around the circumference, with the orientation of the annular areas on the specified axis.

Straight sections in each element can be located in different planes at an angle to each other. Simultaneously ring in the annular sections are of different diameters. The largest diameters of the rings in the middle of the element and the smallest diameters of the rings on the end parts of the element.

The direction of coiling the adjacent elements may be coincident. In this case, the elements in the heat exchange device are oriented so that the plane adjacent to the outer side of the annular sections each element intersect at an acute angle with the axis of the heat exchange device.

The direction of coiling the adjacent elements can be mutually opposite. In atomlike elements in the heat exchange device is oriented so that plane adjacent to the outer side of the annular sections each element, parallel to the axis of the heat exchange device.

In Fig.1 shows a heat exchanger with the same directions of the coils of the elements.

In Fig.2 - View And Fig.1.

In Fig.3 - View B from Fig.2.

In Fig.4 depicts a heat exchange device with mutually opposite directions of the coils in adjacent elements.

In Fig.5 is a View In Fig.4.

In Fig.6 is a view of the City with Fig.5.

In Fig.7 depicts a heat exchanger elements with Fig.13 with the same directions of the coils of the elements.

In Fig.8 - Type D with Fig.7.

In Fig.9 is a View of Fig.8.

In Fig.10 depicts a heat exchanger elements with Fig.13 with mutually opposite directions of the coils in adjacent elements.

In Fig.11 is a View W from Fig.10.

In Fig.12 is a View And Fig.11.

In Fig.13 depicts a single item with Fig.7 and Fig.10 with the location it straight sections in different planes at an angle to each other and with different diameters of the rings.

In Fig.14 - a View To Fig.13.

Heat exchanger consists of items 1, in the form of a spiral wound tubes containing straight sections 2 and annular sections 3, circle 4 with the location of 1 in the cross section of the heat exchange device, orientation of the annular segments 3 to the axis 5 heat e the current device. The coincidence with the direction of coiling the adjacent elements 1 plane 6, adjacent to the outer sides of the annular segments 3, intersect with the axis 5 of the heat exchange device at an acute angle 7. In the opposite direction of the coils in adjacent elements 1 plane 6 parallel to the axis 5. Elements 1 may have straight sections 2, located in different planes 8 angle 9 to each other, while the ring 10 has an annular segments 3 have different diameters, the largest diameter in the middle of the element 1 and the smallest diameter at the end parts at the input 11 and output 12 of the pipe ends.

One of the heat transfer media comes in items 1 through the end of the pipe 11 passes inside straight sections 2 and annular sections 3 and exits through the output ends of the pipes 12.

Another heat transfer medium moves from the outside elements 1, spiral wound tubes, parallel to the axis 5 of the heat exchange device. Outside elements 1 are available as well as any required orientation of the movement of the transfer medium with respect to axis 5.

The proposed heat exchanger allows to achieve the following results:

to reduce the dimensions due to the tight through the implementation of all related elements are annular parts to each other;

- to expand the layout possibilities, because heat ustroystvami be placed in a cylindrical, an annular, toroidal and spherical cavities.

1. Heat exchanger containing the elements in the form of a spiral wound tubes with alternating straight and annular sections, straight sections opposite the annular, with the introduction of adjacent elements to each other annular sections, characterized in that all straight sections of adjacent elements in the heat exchange device mounted on one side, and the annular areas on the other hand, for elements in the cross section of the heat exchange device are arranged around the axis of the latter, around the circumference, with the orientation of the annular areas on the specified axis.

2. Heat exchanger under item 1, characterized in that the straight sections in each element are located in different planes at an angle to each other, with the ring in the annular sections have different diameters, the largest in the middle of the element and the least on his end parts.

3. Heat exchanger according to any one of paragraphs.1, 2, characterized in that the direction of the coils in adjacent elements is the same, thus a plane adjacent to the outer side of the annular sections each element intersect at an acute angle with the axis of the heat exchange device.

4. Heat exchanger according to any one of paragraphs.1, 2, characterized in that the focal point is their coils in adjacent elements are mutually opposite, thus a plane adjacent to the outer side of the annular sections in each element, parallel to the axis of the heat exchange device.



 

Same patents:

FIELD: heating.

SUBSTANCE: in the heat exchanging device the finned heat exchanging tube with the diameter d is made serpentine-shaped with an outer finning diameter D and the thickness of the fins L1, located at a distance L2 from each other. The amplitude of the serpentine A on the outer finning diameter is not less than A=D×(2+1L1+L2L11), the wave period of the serpentine P is not less than P=2D×(1+1L1+L2L11).

EFFECT: intensification of heat exchanging due to turbulence in the flow passing inside the finned serpentine-shaped tubes, and increase in the area of heat exchanging of the device.

23 cl, 8 dwg, 2 tbl

FIELD: power engineering.

SUBSTANCE: heat exchanger-reactor comprises a vessel in the form of a truncated cone, with a surface concave towards its vertical axis with bottoms, nozzle for coolant inlet and outlet from tube and shell spaces. Inside the vessel 1 there is a tube bundle arranged, comprising at least two rows of cone-shaped pipes fixed with ends in holes of plates along concentric circumferences. Tubes are installed with an inclination simultaneously in two directions: with an inclination to a vertical axis of the vessel and with an additional inclination arranged by displacement of ends in a circumferential direction, i.e. along arcs of circumferences of their installation in tube plates. At the same time inclination angles are arranged within the limits of 0.5-50.0 degrees from the vertical plane stretching via the vertical axis of the vessel.

EFFECT: no necessity to increase input parameters of a coolant, which helps to save thermal and electric power.

5 cl, 4 dwg

FIELD: power engineering.

SUBSTANCE: plant comprises a jacket that passes in longitudinal direction between the head end and the base end, inside which there are inbuilt elements that form a heat-exchange and a mixing structure. Besides, there is coolant medium supply as an internal flow into pipes of inbuilt elements from the base end to the head end and fluid supply as an external flow from the head end to the base end. The plant comprises reinforcement elements to stabilise inbuilt elements in longitudinal direction from pressure gradients developed by fluid, besides, in the main area they are joined with reinforcement elements into a partial structure, which is not exposed to thermal expansion, and in the side area they remain at least partially non-reinforced to form a partial structure capable of thermal expansion in longitudinal direction.

EFFECT: increased efficiency of heat exchange, improvement of the plant.

14 cl, 4 dwg

FIELD: oil and gas industry.

SUBSTANCE: heating device of high-viscous oil products and their mixtures includes cylindrical housing with inlet and outlet covers with the appropriate inlet and outlet connection pipelines, tube grids located inside the housing, and distributing inlet and outlet boxes equipped with inlet and outlet tubes respectively and interconnected with ends of tube grids for pumping of heat carrier. Housing is located vertically, lower outlet cover is tapered with outlet connection pipe in lower part, which is enveloped below that cover with inlet distribution box which has the possibility of exchanging the heat with taper surface of lower cover, and upper inlet cover is equipped with inlet connection pipe installed coaxially with the housing; at that, tube grid is made in the form of hopper bent inside the housing and converging downwards; inside that hopper there located is baffle plate distributing the flow of oil products to tube grids and uniformly connected along the perimetre at least to three tubes of the grid with heat-conducting plates.

EFFECT: device is reliable-to-operate, and uniform resistance to flow of oil products is provided.

2 dwg

Heat exchanger // 2384802

FIELD: heating.

SUBSTANCE: invention refers to heat engineering and can be used as heat exchanger of nuclear power plant operating in variable load conditions. In heat exchanger containing a bundle of heat exchange zigzag-shaped tubes with external finning in straight sections, which is installed in the housing, spacers arranged between tubes of the bundle so that mixing chambers are formed in the bending area of the latter, the spacers have thickenings in straight tube sections and grooves evenly spaced relative to them so that an individual channel is formed around each tube, which interconnects mixing chambers to each other.

EFFECT: providing forced heat exchange for obtaining small overall dimensions of equipment owing to increasing uniform temperature field in cross section of tube bundle, and decreasing relative tube deformation at thermal elongations.

4 dwg

Heat exchanger // 2378595

FIELD: heating systems.

SUBSTANCE: invention refers to heat engineering and can be used during arrangement of high thermally stressed heat exchanger of nuclear power plant. In heat exchanger consisting of bank of heat exchange coil tubes the ends of which are fixed in tube sheets arranged in the form of a platen, straight sections of several coil tubes are located consequently in one plane, and bent sections are opened to the side from location plane of straight sections; at that, opening of bends of opposite ends, straight sections, is made to different sides.

EFFECT: providing maximum compactness of tube bank of heat exchanger and reaching high degree of heat exchange efficiency owing to arrangement of heat removal surface itself during operation, increasing life time of reliable operation of heat exchanger design at high specific thermal stresses of the volume occupied with it.

5 dwg

Heat exchanger // 2341751

FIELD: power engineering.

SUBSTANCE: invention can be used in feed water heaters of thermal and nuclear power plants. Proposed heat exchanger consists of a shell inside which a central header and vertical tube platens connected with their ends to appropriate central header chambers are installed. At that each platen is made at least of one "П"-shaped section with transverse parts installed in the shell one above the other, and intermediate part wherein external tubes are installed longitudinally on the shell side, and internal tubes are located on the header side. Internal tubes of the intermediate section part are made with additional sections bent in the direction of central header and located between transverse parts of this section. In this case average tube length makes bigger in each platen, which leads to less number of tubes used in each platen, and therefore to velocity increase in tube and intertube spaces of platens and heat exchange intensification, which finally reduces heat exchanger specific amount of metal.

EFFECT: reducing thermal and hydraulic maldistributions in platens, which also improves platen heat exchange and reduces to a greater degree the heat exchanger specific amount of metal.

2 dwg

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 plates fitted directly in the said manifold walls, with the multi-row bank of the four-pass heat exchanger variable standard-size pipes, the said standards sizes being calculated from the ratios covered by this invention and the aforesaid tube plates being secured by appropriated spacers. The multi-row bank can be made up of, at least, two trains of two-pass U-shape pipes integrated by the aforesaid manifolds and, at least, one bypass chamber.

EFFECT: high-efficiency heat exchanger, lower heat exchanger metal input, optimum design and spacers, higher design rigidity, simpler assembly of heat exchange pipe banks.

21 cl, 16 dwg

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 heat exchanger // 2141613
The invention relates to heat engineering, primarily for vehicles, namely, devices, providing comfortable conditions in the cabin of a vehicle, and air conditioning equipment

FIELD: heating.

SUBSTANCE: heat exchanger comprises a housing provided with fittings for input and output of the coolant, the lids with fittings for input and output of the heat exchanging medium, and the bundle of heat exchanging tubes fixed in the holes of the tube grids, consisting of inner and the subsequent perforated plates with sealing material between them. Each tube grid is provided with the additional perforated plate. The housing is made with the inner recesses at the ends. The inner and the subsequent plates of the tube grids are clamped with the lids in the recesses of the housing. The heat exchanging tubes are equipped with clip bands.

EFFECT: simplification of manufacturing, improvement of reliability of the heat exchanger.

6 cl, 2 dwg

Heat exchanger // 2500965

FIELD: power engineering.

SUBSTANCE: heat exchanger comprises a vessel with the first and second channels for coolants and spherical heat transfer elements placed in spherical holes. Channels are separated with a heat transfer surface, inlet and outlet nozzles of the first channel, inlet and outlet nozzles of the second channel. Spherical heat transfer elements are placed in spherical holes on the heat transfer surface and on the inner surface of the vessel.

EFFECT: invention makes it possible to improve heat transfer from a heat transfer surface that separates channels of a heat exchanger.

2 dwg

FIELD: construction.

SUBSTANCE: wall is made according to the shape of the door frame. Outer elements of heat transfer are made in the form of supports, holders with cast-in cavities, fixators, door leaf and door handle. Supports are fixed to the outer surface. Holders and the door handle are fixed to another door leaf. Fixators are fixed to supports and partially arranged in cast-in cavities of holders. The door leaf is installed as capable of rotation.

EFFECT: invention makes it possible to expand arsenal of technical facilities.

2 dwg

FIELD: construction.

SUBSTANCE: metal heat exchanger of a room heating system comprises a pipeline with a wall with an outer surface, outer elements of heat transfer and their fixation to the outer surface. The wall is made according to the shape of the door frame. Outer elements of heat transfer are made in the form of supports, holders with cast-in cavities, fixators, door leaf and door handle. Supports are fixed to the outer surface. Holders and the door handle are fixed to the door leaf. Fixators are fixed to supports and partially arranged in cast-in cavities of holders. The door leaf is installed as capable of rotation.

EFFECT: invention makes it possible to expand arsenal of technical facilities.

2 dwg

FIELD: heating.

SUBSTANCE: shell-and-tube heat exchanger includes staggered bank of heat exchange tubes with variable longitudinal profile repeated with specified pitch throughout the length of tubes arranged with offset between adjacent tubes; at that, longitudinal tube profile includes straight sections and protrusions, and tubes are arranged in bank with alternation of cross sections of inter-tube space F1 and F2; at that, 0.4<F1/F2<0.6, where F1 - area of the section formed with protrusions of adjacent tubes, F2 - area of the section formed with straight sections of adjacent tubes and with alternation of lengths of channels of inter-tube space L1 and L2; at that, 0.2<L1/L2<0.4, where L1 - length of channels between the closest tops of protrusions of adjacent tubes, L2 - length of channel between tops of tube protrusions.

EFFECT: increasing heat release efficiency, and optimum intensification of heat exchange.

3 dwg

FIELD: manufacture of heat-exchange equipment, applicable in machine building.

SUBSTANCE: the jig has a supporting frame with intermediate and end processing supports positioned in it in two rows for fixation respectively of side walls and gas input and output chambers installed at the ends of the section. Each processing support has horizontal supporting platforms, and at least part of the processing supports has posts mounted on them with at least one coordinate-pendulum section of the surface put out for the overall dimensions of the outer surface of the respective wall of the manufactured section. At least one end support on each end of the jig is provided with a upper coordinate fixing member, the contact surfaces of these members on the opposite ends of the jug are installed with a height difference making up 0.002 to 0.009 of the jig working length with no allowance made for the summary length of the coordinate-fixing members.

EFFECT: provided a high-accuracy assembly of the heat-exchange section with exclusion of violations of the geometric parameters of the relative position of all its members.

4 cl, 2 dwg

FIELD: heat power engineering.

SUBSTANCE: heat exchange apparatus comprises housing, collectors with branch pipes for supplying and discharging first heat-transfer agent, branch pipes for input and output of the second heat-transfer agent from the housing and heat exchange pipe bundle with pipe plate, and structural members interposed between pipes to cause the second heat-transfer agent to flow around the pipe bundle in the transverse direction. The members are made of screw baffles provided with openings for the pipe bundle. The first heat-transfer agent flows in the pipe bundle. The heat exchange apparatus has two unmovable pipe plates or one unmovable pipe plate and one floating head, or one unmovable pipe plate and U-shaped pipes. The screw baffle is multirow. Between the rows are separating walls.

EFFECT: enhanced efficiency.

1 cl, 18 dwg

The invention relates to a tubular gas-liquid heat exchange apparatus radiator type and can be advantageously used in air cooling units (ACU) of the finned tubes, which are used in oil refining, gas and chemical industries for cooling energy, liquid technological products and condensation of their vapors, where the cooling agent is air, and can also be used in other industries for heating air with steam or water supply systems, heating and ventilation units, etc

Heat exchanger // 2160421
The invention relates to the technical objects of heat transfer, in particular to the design of tubular heat exchangers, and can be used to heat the gas agent, the air in the premises or in furnaces for various applications, including bakery

FIELD: engines and pumps.

SUBSTANCE: in a liquid-liquid heat exchanger that connects sections of pipes fixed in a sealed body and connected to separate headers along circuits of cooling coolants, in the circuit of a coil-shaped coolant each section of pipes is made in the form of a spiral-shaped cone coil of meeting and opening type, installed in pairs with larger bases facing each other and in pairs by smaller bases facing each other, besides, sections are divided by transverse partitions in areas of large bases of coils by holes of circular slots, in areas of smaller bases - by central holes in the circuit of cooling coolant.

EFFECT: simplified design with increased level of stability of freon temperature heat transfer.

3 dwg

Up!