CN212645435U - Assembled heat exchange structure - Google Patents

Abstract

The utility model provides an assembled heat exchange structure, the purpose is solved the poor technical problem of current heat exchange structure suitability. The adopted technical scheme is as follows: an assembled heat exchange structure comprises a heat exchange vessel and a cover plate; the heat exchange dishes are rectangular and are provided with a plurality of heat exchange dishes which are connected up and down; the bottom plate of the heat exchange dish seals the top of the heat exchange dish below the heat exchange dish; a plurality of heat conducting fins are arranged in the heat exchange dish and divide the heat exchange dish into a plurality of flow channels which are parallel front and back; the corresponding flow channels of the upper and lower adjacent heat exchange vessels are staggered at the left and right ends and provided with through holes penetrating through the bottom plates of the heat exchange vessels, so that the corresponding flow channels in the upper and lower directions are communicated to form heat exchange channels; the heat exchange channel is divided into a natural gas channel and a refrigerant channel which are distributed in a staggered manner in the front-back direction; the cover plate seals the top of the top end heat exchange vessel; the cover plate is provided with channel ports which are in one-to-one correspondence with the flow channels of the top heat exchange vessel.

Description

Assembled heat exchange structure

Technical Field

The utility model relates to a heat exchange technology field, concretely relates to assembled heat exchange structure.

Background

The natural gas can be converted into liquid after being compressed and cooled to the condensation point temperature, and becomes liquefied natural gas. Liquefied natural gas is usually stored in a low-temperature storage tank at-161.5 ℃ and about 0.1MPa, so that the flexibility of natural gas storage, transportation and utilization is improved, and the application range of the natural gas is expanded.

The lng needs to be re-gasified before use, and a large amount of cold energy is provided during the gasification of the lng. The cold energy can be recovered through the cold energy recovery device, so that the economic benefit is improved. The heat exchange structure is an important component of the cold energy recovery device, the existing heat exchange structure is mostly of a tubular structure, and the length of the heat exchange channel cannot be adjusted due to the fact that the tube length of the heat exchange structure is fixed, so that the application range of the heat exchange structure is limited.

Disclosure of Invention

An object of the utility model is to provide an assembled heat exchange structure, its length that can be to heat transfer passageway is adjusted, and application scope is wider.

In order to achieve the above object, the utility model adopts the following technical scheme:

an assembled heat exchange structure comprising:

the heat exchange vessel is rectangular and is provided with a plurality of heat exchange vessels which are connected up and down; the upper part and the lower part of each heat exchange vessel are respectively provided with an upper edge and a lower edge which surround the heat exchange vessels, and the adjacent heat exchange vessels are fixedly connected through bolts which penetrate through the corresponding upper edges and the corresponding lower edges; the bottom plate of the heat exchange dish seals the top of the heat exchange dish below the heat exchange dish;

the heat conducting fins are arranged in the heat exchange vessel; the heat conducting fins are provided with a plurality of flow channels which divide the corresponding heat exchange vessel into a plurality of parallel front and back flow channels; the corresponding flow channels of the upper and lower adjacent heat exchange vessels are staggered at the left and right ends and provided with through holes penetrating through the bottom plates of the heat exchange vessels, so that the corresponding flow channels in the upper and lower directions are communicated to form heat exchange channels; the heat exchange channel is divided into a natural gas channel and a refrigerant channel which are distributed in a staggered manner in the front-back direction;

the cover plate is used for sealing the top of the top end heat exchange vessel; the cover plate is provided with channel ports which are in one-to-one correspondence with the flow channels of the top heat exchange vessel.

Optionally, an elastic sealing member is disposed on the top of the heat exchange plate, and the elastic sealing member includes a peripheral sealing portion corresponding to the upper edge and a strip sealing portion corresponding to the heat conducting strip.

Optionally, go up along setting up the all seal grooves with all seal portion adaptation, the bottom of strip seal portion sets up the bar groove that supplies the conducting strip top embedding, the thickness of strip seal portion in front and back direction from up increasing in proper order down.

Optionally, a reinforcing member is arranged in the flow channel, and the reinforcing member comprises a front supporting plate, a rear supporting plate and a connecting part for connecting the two supporting plates; the supporting plate is attached to the corresponding heat conducting fins or the inner wall of the heat exchange vessel.

Optionally, the connecting portion is formed by a plurality of transverse sheets arranged in parallel up and down, and the transverse sheets form heat conduction fins.

Optionally, the upper portion of the support plate is in contact with the strip sealing portion of the corresponding heat conductive sheet; the lower parts of the front side and the rear side of the strip sealing part are extruded between the corresponding heat conducting fins and the corresponding support plate, and the reinforcing piece is fixed in the flow channel by extruding the strip sealing part to the support plate; the supporting plate is provided with a through hole penetrating through the front side wall and the rear side wall of the supporting plate.

The utility model discloses a theory of operation does: stacking the heat exchange dishes from bottom to top in sequence, and connecting the upward edge and the lower edge by penetrating bolts; then the cover plate is fixedly connected to the top of the heat exchange vessel at the top end through bolts, and the whole heat exchange structure can be assembled. The heat conducting fins divide the space in the heat exchange vessel into front and back parallel flow channels, the corresponding flow channels in the up and down direction are communicated to form a heat exchange channel, and the heat exchange channel is divided into a natural gas channel and a refrigerant channel which are distributed in a staggered mode in the front and back direction; introducing liquefied natural gas into the natural gas channel, and introducing a refrigerant into the refrigerant channel; when the liquefied natural gas passes through the natural gas channel and the refrigerant passes through the refrigerant channel, heat in the refrigerant can be transferred to the natural gas and the refrigerant is cooled, and therefore cold energy in the liquefied natural gas is recovered.

Therefore, the utility model has the advantages that: when the flow and the flow rate of the liquefied natural gas provided under different scenes are different, the length of the heat exchange channel can be adaptively adjusted by adjusting the number of the heat exchange dishes, so that the gasification effect of the liquefied natural gas and the sufficient and effective recovery of cold energy are ensured. In addition, the length of the heat exchange channel can also be suitable for heat exchange of other fluids by adjusting the number of the heat exchange dishes; and the manufacturer can assemble a heat exchange structure suitable for heat exchange of different fluids by producing a heat exchange vessel with one specification, thereby realizing modular production and improving production efficiency. In addition, the whole heat exchange structure is formed by assembling the heat exchange dishes, so that the heat exchange structure is convenient to disassemble and assemble, a single heat exchange dish can be replaced during maintenance, and the maintenance cost is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a top view of the present invention;

FIG. 3 is a sectional view taken along line A-A of FIG. 2;

FIG. 4 is a view taken from the direction B-B in FIG. 2, rotated 90;

FIG. 5 is a schematic structural diagram of a heat exchange dish;

FIG. 6 is an enlarged view of portion A of FIG. 5;

FIG. 7 is a schematic view of the arrangement of the reinforcing member in the heat exchange dish;

FIG. 8 is a top view of FIG. 7;

FIG. 9 is a sectional view taken along line A-A of FIG. 8;

FIG. 10 is an enlarged view of portion B of FIG. 9;

FIG. 11 is a schematic view of the construction of the elastomeric seal;

FIG. 12 is a schematic view of a reinforcement structure;

reference numerals: 1. a heat exchange vessel; 2. an upper edge; 3. a lower edge; 4. a heat conductive sheet; 5. a port; 6. a natural gas channel; 7. a refrigerant channel; 8. a cover plate; 9. a passage port; 10. an elastomeric seal; 11. a peripheral seal portion; 12. a strip seal portion; 13. a peripheral sealing groove; 14. a reinforcement; 15. a support plate; 16. a transverse sheet.

Detailed Description

In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Embodiments of the present invention will be described in detail below with reference to fig. 1 to 12.

The embodiment of the utility model provides an assembled heat exchange structure, this assembled heat exchange structure includes:

the heat exchange dish 1 is rectangular and is provided with a plurality of heat exchange dishes which are connected up and down; the upper part and the lower part of the heat exchange dish 1 are respectively provided with an upper edge 2 and a lower edge 3 which surround the heat exchange dish 1 in front, back, left and right, and the adjacent heat exchange dishes 1 are fixedly connected through bolts which penetrate through the upper edge 2 and the lower edge 3; the bottom plate of the heat exchange dish 1 seals the top of the heat exchange dish 1 below the heat exchange dish 1.

The heat conducting fins 4 are arranged in the heat exchange dish 1; the heat conducting fins 4 are provided with a plurality of flow channels which divide the corresponding heat exchange vessel 1 into a plurality of parallel front and back flow channels; it should be understood that the thermally conductive sheet 4 may be made of metal having good thermal conductivity; a plurality of heat conducting fins 4 extending in the left-right direction are arranged in each heat exchange dish 1, and the number and the intervals of the heat conducting fins 4 in each heat exchange dish 1 are correspondingly the same. The corresponding flow channels of the heat exchange dishes 1 adjacent up and down are staggered at the left end and the right end and are provided with through holes 5 penetrating through the bottom plates of the heat exchange dishes 1, so that the corresponding flow channels in the up-down direction are communicated to form heat exchange channels; the heat exchange channel is divided into a natural gas channel 6 and a refrigerant channel 7 which are distributed in a staggered mode in the front-back direction. It should be understood that the flow channel is provided with a through opening 5 penetrating through the bottom plate of the heat exchange dish 1 at only one of the left end and the right end; for the flow channel with the port 5 arranged at the left end, the flow channel above and below the port 5 is provided with the port 5 at the right end; the flow channel with the port 5 at the right end is provided with the port 5 at the left end of the flow channel above and below the flow channel.

The cover plate 8 is used for sealing the top of the top heat exchange vessel 1; the cover plate 8 is provided with channel ports 9 which are in one-to-one correspondence with the flow channels of the top heat exchange dish 1. It should be understood that the cover plate 8 is fixedly connected with the upper edge 2 of the top heat exchange pan 1 through bolts.

The embodiment of the utility model is explained below, the heat exchange vessels 1 are stacked from bottom to top in sequence, and bolts are inserted along the upper edge 2 and the lower edge 3 for connection; then, the cover plate 8 is fixedly connected to the top of the heat exchange vessel 1 at the top end through bolts, and the whole heat exchange structure can be assembled. The heat conducting fins 4 divide the space in the heat exchange vessel 1 into front and back parallel flow channels, the flow channels corresponding to the upper and lower directions are communicated to form a heat exchange channel, and the heat exchange channel is divided into a natural gas channel 6 and a refrigerant channel 7 which are distributed in a staggered manner in the front and back directions; introducing liquefied natural gas into the natural gas channel 6, and introducing a refrigerant into the refrigerant channel 7; when the liquefied natural gas passes through the natural gas channel 6 and the refrigerant passes through the refrigerant channel 7, heat in the refrigerant can be transferred to the natural gas and the refrigerant is cooled, so that cold energy in the liquefied natural gas is recovered. The utility model discloses an equipment of heat transfer ware 1 forms, not only easy dismounting, and can change single heat transfer ware 1 when maintaining, reduced the maintenance cost. When the flow and the flow rate of the liquefied natural gas provided under different scenes are different, the length of the heat exchange channel can be adaptively adjusted by adjusting the number of the heat exchange dishes 1, so that the gasification effect of the liquefied natural gas and the sufficient and effective recovery of cold energy are ensured. In addition, the length of the heat exchange channel can also be suitable for heat exchange of other fluids by adjusting the number of the heat exchange dishes 1; and the manufacturer can assemble the heat exchange structure suitable for different fluids to exchange heat by producing the heat exchange vessel 1 with one specification, thereby realizing modular production and improving the production efficiency.

In the embodiment given in the present application, an elastic sealing member 10 is disposed on the top of the heat exchange dish 1, and the elastic sealing member 10 includes a peripheral sealing portion 11 corresponding to the upper edge 2 and a strip sealing portion 12 corresponding to the heat conducting strip 4. It should be understood that the peripheral seal portion 11 and the strip seal portion 12 may be formed in an integral structure or in a separate structure. The elastic sealing member 10 may be made of materials such as nitrile butadiene rubber, ethylene propylene diene monomer rubber, fluorine rubber, fluorosilicone rubber, etc.

In the embodiment that this application provided, go up along 2 settings with the peripheral seal groove 13 of peripheral seal 11 adaptation, the bottom of strip seal 12 sets up the bar groove that supplies the embedding of conducting strip 4 top, up increase in proper order is followed from the top down to the thickness of front and back ascending of strip seal 12. It will be appreciated that the strip seal 12 is generally trapezoidal in cross-section.

In the embodiment given in the present application, a reinforcing member 14 is disposed in the flow channel, and the reinforcing member 14 includes two front and rear support plates 15 and a connecting portion for connecting the two support plates 15; the supporting plate 15 is attached to the corresponding heat conducting fin 4 or the inner wall of the heat exchange dish 1. It should be understood that the supporting plate 15 can support and limit the heat conducting strip 4, so as to prevent the heat conducting strip 4 from deforming and prevent leakage between the flow passages due to deformation of the heat conducting strip 4.

In the embodiment given in the present application, the connecting portion is formed by a plurality of cross pieces 16 arranged in parallel up and down, and the cross pieces 16 form heat conduction fins. It will be appreciated that the reinforcing members 14 may alternatively be made of a metal having good thermal conductivity properties, so that hot fluid in a channel can better transfer heat to cold fluid in an adjacent channel.

In the embodiment given in the present application, the upper portion of the support plate 15 is in contact with the strip seal portion 12 of the corresponding heat conductive sheet 4; the lower parts of the front and rear sides of the strip sealing parts 12 are extruded between the corresponding heat conducting fins 4 and the corresponding support plates 15, and the reinforcing pieces 14 are fixed in the flow channels through the extrusion of the strip sealing parts 12 to the support plates 15; the support plate 15 is provided with through holes penetrating through front and rear side walls thereof. It should be understood that since a small portion of the lower portion of the strip sealing portion 12 is pressed between the thermally conductive sheet 4 and the support plate 15, a slight gap may exist between the thermally conductive sheet 4 and the support plate 15, and by providing the support plate 15 with through holes penetrating through the front and rear side walls thereof, the gap may be filled with a fluid, thereby ensuring heat exchange efficiency. In addition, when the heat conductive sheet 4 is slightly deformed by an amount corresponding to the clearance, the deformation of the strip seal portion 12 with the deformation complements the amount of deformation of the heat conductive sheet 4, and leakage between the flow paths is prevented. The reinforcing member 14 is fixed in the flow passage by the reaction force generated by the extrusion of the strip sealing portion 12, so that the assembly, disassembly and position adjustment are very convenient, and the later maintenance or replacement is convenient.

Although specific embodiments of the present invention have been described above, it will be appreciated by those skilled in the art that changes and modifications may be made to these embodiments without departing from the principles and spirit of the invention, and these changes and modifications are intended to fall within the scope of the invention.

Claims (6)

1. An assembled heat exchange structure, characterized in that: the method comprises the following steps:

the heat exchange vessel (1) is rectangular and is provided with a plurality of heat exchange vessels which are connected up and down; the upper part and the lower part of each heat exchange vessel (1) are respectively provided with an upper edge (2) and a lower edge (3) which surround the heat exchange vessels, and the adjacent heat exchange vessels (1) are fixedly connected through bolts which penetrate through the corresponding upper edges (2) and the corresponding lower edges (3); the bottom plate of the heat exchange dish (1) seals the top of the heat exchange dish (1) below the heat exchange dish;

the heat conducting fins (4) are arranged in the heat exchange vessel (1); the heat conducting fins (4) are provided with a plurality of flow channels which divide the corresponding heat exchange vessel (1) into a plurality of parallel front and back flow channels; corresponding flow channels of the heat exchange dishes (1) which are adjacent up and down are staggered at the left end and the right end, and through holes (5) penetrating through the bottom plates of the heat exchange dishes (1) are arranged at the left end and the right end, so that the corresponding flow channels in the up-down direction are communicated to form a heat exchange channel; the heat exchange channel is divided into a natural gas channel (6) and a refrigerant channel (7) which are distributed in a staggered manner in the front-back direction;

the cover plate (8) is used for sealing the top of the top heat exchange vessel (1); the cover plate (8) is provided with channel ports (9) which correspond to the flow channels of the top heat exchange vessel (1) one by one.

2. The modular heat exchange structure of claim 1, wherein: the top of the heat exchange dish (1) is provided with an elastic sealing piece (10), and the elastic sealing piece (10) comprises a peripheral sealing part (11) corresponding to the upper edge (2) and a strip sealing part (12) corresponding to the heat conducting fins (4).

3. The modular heat exchange structure of claim 2, wherein: go up along (2) setting and all sealing groove (13) of all sealing (11) adaptation, the bottom of strip sealing (12) sets up the strip groove that supplies conducting strip (4) top embedding, strip sealing (12) is from up increasing in proper order down in the ascending thickness of front and back side.

4. The modular heat exchange structure of claim 3, wherein: a reinforcing piece (14) is arranged in the flow channel, and the reinforcing piece (14) comprises a front supporting plate, a rear supporting plate (15) and a connecting part for connecting the two supporting plates (15); the supporting plate (15) is attached to the corresponding heat conducting fins (4) or the inner wall of the heat exchange dish (1).

5. The modular heat exchange structure of claim 4, wherein: the connecting part is composed of a plurality of transverse sheets (16) which are arranged in parallel up and down, and the transverse sheets (16) form heat conduction fins.

6. The modular heat exchange structure of claim 5, wherein: the upper part of the support plate (15) is in contact with the strip sealing part (12) corresponding to the heat conducting strip (4); the lower parts of the front side and the rear side of the strip sealing part (12) are extruded between the corresponding heat conducting fins (4) and the corresponding support plate (15), and the reinforcing piece (14) is fixed in the flow channel by the extrusion of the strip sealing part (12) to the support plate (15); the supporting plate (15) is provided with a through hole penetrating through the front side wall and the rear side wall of the supporting plate.

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