CN220624992U - Non-space heat exchanger - Google Patents
Non-space heat exchanger Download PDFInfo
- Publication number
- CN220624992U CN220624992U CN202322260700.1U CN202322260700U CN220624992U CN 220624992 U CN220624992 U CN 220624992U CN 202322260700 U CN202322260700 U CN 202322260700U CN 220624992 U CN220624992 U CN 220624992U
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- tube
- heat exchange
- heat exchanger
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- 230000007704 transition Effects 0.000 claims description 6
- 239000012530 fluid Substances 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012824 chemical production Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model relates to the technical field of shell-and-tube heat exchangers, in particular to a non-space heat exchanger, which comprises a left tube box, a right tube box and a shell, wherein tube plates are respectively arranged between the shell and the left tube box and between the shell and the right tube box; the tube plate is provided with a pull rod which is parallel to the heat exchange tubes and penetrates through the support plates, and the pull rod is sleeved with a plurality of distance tubes which are arranged between adjacent support plates and between the support plates and the tube plate and used for determining the positions of the support plates. The utility model effectively improves the total heat load of the heat exchanger.
Description
Technical Field
The utility model relates to the technical field of tube type heat exchangers, in particular to an intermittent heat exchanger.
Background
The shell and tube heat exchanger is a heat exchanger with the widest application in chemical production, and mainly comprises a tube box, a shell, a tube plate, heat exchange tubes, a baffle plate and the like. When heat exchange is carried out, a fluid enters from the connecting pipe of the pipe box, flows in the pipe and flows out from the connecting pipe at the other end of the pipe box, which is called as a pipe side; the other fluid enters from the connection of the housing and exits from the other connection of the housing, which is called the shell side. The two fluids exchange heat through the dividing wall type heat exchange pipes, so that the heat exchange pipes of the tube array type heat exchanger are the heat exchanger cores, the heat exchange pipes are used as heat conducting elements to determine the thermal performance of the heat exchanger, and the surface areas of all the heat exchange pipes are the heat transfer areas of the heat exchanger. The heat exchange tubes of the core heat conducting element of the shell and tube heat exchanger are generally uniformly welded or expanded with the tube plates, so that gaps are reserved among the heat exchange tubes, and the center distance of the heat exchange tubes of each specification is also defined in the 'tube distribution' of the 6.3.1 heat exchanger of national standard GB/T151-2014. The heat transfer area is increased in the limited shell space, so that the total heat load of the heat exchanger is improved, the number of the heat exchange tubes can be increased on one hand, and the surface area of the heat exchange tubes can be increased on the other hand, and the heat exchange tubes are required to be increased in diameter.
Disclosure of Invention
The utility model aims to solve the technical problem of providing an intermittent heat exchanger, which effectively improves the total heat load of the heat exchanger.
The utility model relates to an intermittent heat exchanger, which comprises a left tube box, a right tube box and a shell, wherein the upper part of the left tube box is provided with a tube side outlet, the lower part of the right tube box is provided with a tube side inlet, the shell is arranged between the left tube box and the right tube box, the upper part of the left side of the shell is provided with a shell side inlet, the lower part of the right side of the shell is provided with a shell side outlet, tube plates are respectively arranged between the shell and the left tube box and the right tube box, a plurality of heat exchange tubes are arranged in the shell, the heat exchange tubes are reducer tubes, each heat exchange tube comprises a small-diameter section arranged at two ends of the heat exchange tube, a large-diameter section arranged at the middle part of the heat exchange tube and a transition section arranged between the small-diameter section and the large-diameter section, the small-diameter section passes through the tube plates to be respectively communicated with the left tube box and the right tube box, the small-diameter section is in sealing connection with the tube plates, the large-diameter section is tangential to the outer wall between the large-diameter section and the adjacent large-diameter section, the large-diameter section forms a main heat exchange tube bundle, the main heat exchange tube passes through a plurality of support plates, the outermost tube wall of the main heat exchange tube and the inner wall of the support plate is fit; the tube plate is provided with a pull rod which is parallel to the heat exchange tubes and penetrates through the support plates, and the pull rod is sleeved with a plurality of distance tubes which are arranged between adjacent support plates and between the support plates and the tube plate and used for determining the positions of the support plates.
Preferably, the large diameter sections of the heat exchange tubes are all the same in size.
Preferably, the tube plate is in threaded connection with the tie rod.
Preferably, one end of the pull rod is connected with the right tube plate, and the other end of the pull rod penetrates through the leftmost support plate and is provided with a nut.
Preferably, the tube sheets are connected to the left tube box and the right tube box respectively by fasteners.
Preferably, the fastener is a fastening screw.
Preferably, the heat exchange tube is formed by welding a small-diameter section, a transition section and a large-diameter section.
Preferably, the small diameter section is welded or expanded to the tube sheet.
Preferably, the support plate is provided with a flow hole. The flow holes facilitate the flow of shell side medium between the shell and the outermost tube wall of the large diameter section.
Compared with the prior art, the utility model has the beneficial effects that: through the reducing design of the heat exchange tube, the outer wall between the large-diameter section and the adjacent large-diameter section is tangent, so that the heat exchange area of the medium and the heat exchange tube is greatly increased, the total heat load of the heat exchanger is effectively improved, and the heat exchange efficiency is improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2, a schematic cross-sectional side view of the utility model A-A;
FIG. 3 is a schematic view of a cross-sectional side view of the utility model B-B;
FIG. 4 is a schematic view of the tube sheet structure of the present utility model;
FIG. 5 is a schematic view of the structure of the support plate of the present utility model;
FIG. 6 is a schematic view of the heat exchange tube structure of the present utility model;
in the figure: 1. a left tube box; 2. a tube sheet; 3. a nut; 4. a pull rod; 5. a distance tube; 6. a support plate; 61. a flow hole; 7. a housing; 8. a heat exchange tube; 81. a small diameter section; 82. a transition section; 83. a large diameter section; 9. a fastener; 10. right tube box.
Detailed Description
The present utility model will now be described more fully hereinafter with reference to the accompanying drawings.
Example 1
As shown in fig. 1-4, the utility model relates to an intermittent heat exchanger, which comprises a left tube box 1, a right tube box 10 and a shell 7, wherein the upper part of the left tube box 1 is provided with a tube side outlet, the lower part of the right tube box 10 is provided with a tube side inlet, the shell 7 is arranged between the left tube box 1 and the right tube box 10, the upper part of the left side of the shell 7 is provided with a shell side inlet, the lower part of the right side of the shell 7 is provided with a shell side outlet, tube plates 2 are respectively arranged between the shell 7 and the left tube box 1 and the right tube box 10, a plurality of heat exchange tubes 8 are arranged in the shell 7, as shown in fig. 6, the heat exchange tubes 8 are reducer tubes, each heat exchange tube 8 comprises a small-diameter section 81 arranged at two ends of the heat exchange tubes 8, a large-diameter section 83 arranged at the middle part of the heat exchange tube 8 and a transition section 82 arranged between the small-diameter section 81 and the large-diameter section 83, the small-diameter section 81 is communicated with the left tube box 1 and the right tube box 10 respectively through the tube plates 2, the small-diameter section 81 is arranged at a tangent to the outer wall between the large-diameter section 83 and the adjacent large-diameter section 83, and the whole large-diameter section 83 forms a main heat exchange tube bundle 6, and the main heat exchange tube bundle passes through the main heat exchange support plate 6 and the main heat exchange tube bundle 6 is arranged at the outer side as shown in fig. 5; the tube plate 2 is provided with a pull rod 4 which is parallel to the heat exchange tube 8 and penetrates through the support plate 6, the pull rod 4 is sleeved with a plurality of distance tubes 5, and the distance tubes 5 are arranged between the adjacent support plates 6 and between the support plates 6 and the tube plate 2.
The large diameter sections 83 of the plurality of heat exchange tubes 8 are all the same size.
The tube plate 2 is in threaded connection with the pull rod 4.
One end of a pull rod 4 is connected with the right tube plate 2, and the other end of the pull rod 4 penetrates through the leftmost support plate 6 and is provided with a nut 3.
The tube sheet 2 is connected to the left tube box 1 and the right tube box 10 by fasteners 9, respectively.
The fastener 9 is a fastening screw.
The heat exchange tube 8 is formed by welding a small-diameter section 81, a transition section 82 and a large-diameter section 83.
The small diameter section 81 is welded or expanded to the tube sheet 2.
The working process comprises the following steps: shell side medium enters the shell 7 from the shell side inlet, tube side medium enters the heat exchange tube 8 from the tube side inlet, the shell side medium flows through the small-diameter section 81 and enters a gap formed by the tangential outer walls of the large-diameter sections 83, and continues to flow rightwards, tube side medium in the heat exchange tube 8 flows leftwards from right, and the shell side medium and the tube side medium perform countercurrent heat exchange, so that the heat exchange efficiency is improved.
When the heat exchange tube 8 in the shell 7 is installed, firstly, the pull rod 4 is connected to the right tube plate 2 through threads, the pull rod 4 is penetrated with the distance tube 5, the support plate 6 is fixed at intervals according to a certain size, the tail end of the pull rod 4 is fastened by the nut 3, the heat exchange tube 8 is sequentially stacked and penetrated into the support plate 6 and the right tube plate 2, finally, the small-diameter section 81 at the left side of the heat exchange tube 8 is led into the left tube plate 2, and finally, the tube plate 2 and the heat exchange tube 8 are welded or expanded to be connected so as to achieve the sealing effect.
Example 2
In addition to embodiment 1, as shown in fig. 5, a flow hole 61 is provided in the support plate 6. The flow holes 61 facilitate the shell side medium to flow between the shell 7 and the outermost tube wall of the main heat exchange tube bundle, effectively utilizing the outermost heat exchange area of the main heat exchange tube bundle.
Claims (9)
1. The utility model provides a no-space heat exchanger, including left tube case (1), right side tube case (10) and casing (7), a serial communication port, left side tube case (1) upper portion is equipped with the tube side export, right side tube case (10) lower part is equipped with the tube side entry, casing (7) are located between left side tube case (1) and right side tube case (10), casing (7) left side upper portion is equipped with the shell side entry, casing (7) right side lower part is equipped with the shell side export, be equipped with tube sheet (2) between casing (7) and left side tube case (1) and right side tube case (10) respectively, be equipped with many heat exchange tube (8) in casing (7), heat exchange tube (8) are the reducing pipe, heat exchange tube (8) are including locating small diameter section (81) at heat exchange tube (8) both ends, locate big diameter section (83) at heat exchange tube (8) middle part and locate changeover portion (82) between small diameter section (81) and the big diameter section (83), small diameter section (81) pass tube sheet (2) respectively with left side tube case (1) and right side tube case (10) between tube case (10), be equipped with tube sheet (83) and heat exchange tube bundle (8) are connected with big diameter tube bundle (83) and are whole, a plurality of heat exchange tube bundle (8) are arranged up in the heat exchange tube bundle (81) and are tangent to big tube bundle (6) outside, and heat exchange tube bundle tube (8) and heat exchanger tube bundle tube is connected with big tube bundle tube (83, the pipe wall at the outermost side of the main heat exchange pipe bundle is matched with the inner wall of the supporting plate (6); be equipped with on tube sheet (2) with heat exchange tube (8) parallel and run through pull rod (4) of backup pad (6), cup jointed a plurality of distance pipes (5) on pull rod (4), distance pipes (5) are located between adjacent backup pad (6) and between backup pad (6) and tube sheet (2).
2. An intermediate heat exchanger according to claim 1, characterized in that the large diameter sections (83) of the heat exchange tubes (8) are all of the same size.
3. An intermediate heat exchanger according to claim 1, wherein the tube plate (2) is screwed to the tie rod (4).
4. An intermediate heat exchanger according to claim 1, characterized in that one end of the tie rod (4) is connected to the right tube plate (2), and that the other end of the tie rod (4) is provided with a nut (3) after passing through the leftmost support plate (6).
5. An intermediate heat exchanger according to claim 1, wherein the tube sheets (2) are connected to the left tube box (1) and the right tube box (10) respectively by fasteners (9).
6. An intermediate heat exchanger according to claim 5, wherein the fastening means (9) is a fastening screw.
7. An intermediate heat exchanger according to claim 1, characterized in that the heat exchange tube (8) is composed of small diameter sections (81), transition sections (82), large diameter sections (83) welded together.
8. An intermediate heat exchanger according to claim 1, characterized in that the small diameter section (81) is welded or expanded to the tube sheet (2).
9. An intermediate heat exchanger according to claim 1, characterized in that the support plate (6) is provided with flow openings (61).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322260700.1U CN220624992U (en) | 2023-08-22 | 2023-08-22 | Non-space heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322260700.1U CN220624992U (en) | 2023-08-22 | 2023-08-22 | Non-space heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220624992U true CN220624992U (en) | 2024-03-19 |
Family
ID=90235210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322260700.1U Active CN220624992U (en) | 2023-08-22 | 2023-08-22 | Non-space heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220624992U (en) |
-
2023
- 2023-08-22 CN CN202322260700.1U patent/CN220624992U/en active Active
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