CN215725336U - Shell-and-tube heat exchanger with thin end plate - Google Patents
Shell-and-tube heat exchanger with thin end plate Download PDFInfo
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- CN215725336U CN215725336U CN202122084512.9U CN202122084512U CN215725336U CN 215725336 U CN215725336 U CN 215725336U CN 202122084512 U CN202122084512 U CN 202122084512U CN 215725336 U CN215725336 U CN 215725336U
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Abstract
A shell-and-tube heat exchanger with thin end plates comprises a long cylindrical heat exchange cavity and a heat exchange tube bundle, wherein the heat exchange tube bundle is arranged in the heat exchange cavity; the heat exchange chamber comprises a long cylindrical shell and at least one end plate; the middle part of the end plate is a thinning part, the periphery part of the end plate is a thick section part, the thinning part is formed by at least one surface of the end plate in a concave mode, and the thinning part is provided with a plurality of tube bundle holes for the heat exchange tube bundles to penetrate through. The technical problems of low preparation efficiency, high cost and low expansion joint success rate caused by high wall thickness and difficult drilling of the flat plate type end plate of the conventional shell-and-tube heat exchanger are solved. The middle part of the end plate of the shell-and-tube heat exchanger is designed to be thinned, the thickness of the end plate is thinned, tube bundle holes are convenient to open, punching manufacturing can be conducted, the hole opening efficiency is improved, time and labor are saved, the production cost is reduced, and therefore the preparation efficiency of the shell-and-tube heat exchanger is improved. The peripheral part of the end plate is still designed to be a thick section, so that the connection strength is ensured.
Description
Technical Field
The utility model relates to the technical field of heat exchangers, in particular to a shell-and-tube heat exchanger with thin end plates.
Background
The shell-and-tube heat exchanger is also called a tube type heat exchanger and consists of a shell, an end plate, a heat exchange tube bundle, a tube box, a baffle plate and other parts. The wall surface of the heat exchange tube bundle enclosed in the shell is used as a heat transfer surface. Two fluids, namely cold fluid and hot fluid for heat exchange, wherein one fluid flows in the heat exchange tube bundle and is called tube side fluid; the other flows outside the heat exchange tube bundle and is called shell-side fluid. The shell-and-tube heat exchanger is widely applied, and has the main advantages of having a series waterway flow, not forming a local dead zone and avoiding the failure problem caused by frost damage. Therefore, the shell-and-tube heat exchanger is particularly suitable for occasions with high reliability requirements. However, the existing shell-and-tube heat exchangers on the market still have certain disadvantages: the end plate of the existing shell-and-tube heat exchanger is a flat plate, the thickness of the end plate needs to be calculated according to the pressure-bearing requirement, the thickness of the end plate is usually larger than the diameter of the heat exchange tube, so that stamping and manufacturing are not feasible, holes are drilled one by adopting a drilling machine, and the efficiency is low. In addition, the end plate wall thickness is high, and the corresponding cost is high, and meanwhile, the success rate of expansion joint is low.
In view of this, the present invention is a subject of how to design a shell-and-tube heat exchanger with high manufacturing efficiency, low cost and high expansion joint success rate.
Disclosure of Invention
The utility model provides a shell-and-tube heat exchanger with a thin end plate, and aims to solve the technical problems of low preparation efficiency, high cost and low expansion joint success rate caused by high wall thickness and difficult drilling of a flat plate type end plate of the conventional shell-and-tube heat exchanger.
In order to achieve the purpose, the utility model adopts the technical scheme that:
a shell-and-tube heat exchanger with thin end plates comprises a long cylindrical heat exchange cavity and a heat exchange tube bundle, wherein the heat exchange tube bundle is arranged in the heat exchange cavity; the heat exchange chamber comprises a long cylindrical shell and at least one end plate; the middle part of the end plate is a thinning part, the periphery part of the end plate is a thick section part, the thinning part is formed by at least one surface of the end plate in a concave mode, and the thinning part is provided with a plurality of tube bundle holes for the heat exchange tube bundles to penetrate through.
The relevant content in the above technical solution is explained as follows:
1. in the above scheme, the middle part of the end plate is a thinning part, the peripheral part of the end plate is a thick section part, the thinning part is formed by at least one surface of the end plate in a concave manner, and the thinning part is provided with a plurality of tube bundle holes for the heat exchange tube bundle to penetrate through. The design of attenuate is made at the middle part of end plate, and the thickness attenuation is convenient for set up the tube bank hole, can improve trompil efficiency through the punching press preparation, labour saving and time saving, reduction in production cost to improve shell and tube heat exchanger's preparation efficiency. The peripheral part of the end plate is still designed to be a thick section, so that the connection strength is ensured.
2. In the scheme, the thickness of the thinning part is 1-10 mm. Further facilitate the punching
3. In the above scheme, the thinning portion is formed by recessing one surface of the end plate, the other surface of the end plate is a plane, and the thinning portion faces or faces away from the heat exchange chamber. The thinned portion may face towards the heat exchange chamber or may face away from the heat exchange chamber.
4. In the above aspect, the thinning portion is formed by recessing one surface of the end plate, and the shape of the recess is an ellipse.
5. In the above aspect, the thinning portion is formed by recessing one surface of the end plate, and the shape of the recess is circular.
6. In the above scheme, the thinning portion is formed by a surface recess of the end plate, and the recess is formed by a flat bottom fillet.
7. In the above scheme, the central area of the thinning portion is square. The thickness of the square area of the thinning part is consistent, so that the punching is more convenient for industrial impact punching.
8. In the above scheme, no tube bundle hole is formed at the end parts of the two sides of the thinning part in the horizontal direction or the vertical direction. The area without the tube bundle holes, i.e. without the heat exchange tube bundle, is used for deflecting water.
9. In the above scheme, the heat exchange tube bundles are arranged in a cube shape.
10. In the above scheme, the heat exchange tube bundles are divided into a plurality of independent groups, and the inlet and the outlet of each group of heat exchange tube bundles are respectively provided with a tube box. Namely, a plurality of heat exchange tube bundle groups share one end plate, and the end plate is also partitioned according to the heat exchange tube bundle groups. The heat exchange tube bundle groups can be arranged in a cubic shape and arranged side by side or up and down. The heat exchange tube bundle groups can be arranged in the left, middle and right or in the upper, middle and lower parts. The heat exchange tube bundle group can also be divided into an upper layer and a lower layer, and is distributed in the left, middle and right or in the upper, middle and lower layers.
Based on the technical scheme, the utility model has the following advantages and effects:
the middle part of the end plate of the shell-and-tube heat exchanger is designed to be thinned, the thickness of the end plate is thinned, tube bundle holes are convenient to open, punching manufacturing can be conducted, the hole opening efficiency is improved, time and labor are saved, the production cost is reduced, and therefore the preparation efficiency of the shell-and-tube heat exchanger is improved. The peripheral part of the end plate is still designed to be a thick section, so that the connection strength is ensured.
Drawings
FIG. 1 is a schematic structural view of a shell-and-tube heat exchanger according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of an end plate according to an embodiment of the present invention;
FIG. 3 is a schematic view of a first form of a tube bundle hole in an end plate in accordance with an embodiment of the present invention;
FIG. 4 is a schematic view of a second form of a tube bundle aperture in an end plate in accordance with an embodiment of the present invention;
FIG. 5 is a schematic view of a third form of a tube bundle aperture in an end plate in accordance with an embodiment of the present invention.
In the above drawings: 1. a heat exchange chamber; 2. a heat exchange tube bundle; 3. a housing; 4. an end plate; 5. a thinning portion; 6. a thick section portion; 7. a tube bundle hole; 8. a pipe box; 9. a baffle plate; 10. a refrigerant inlet; 11. a refrigerant outlet; 12. a waterway inlet; 13. and a waterway outlet.
Detailed Description
The utility model is further described with reference to the following figures and examples:
example (b): shell-and-tube heat exchanger with thin end plate
Referring to the attached figure 1, the heat exchange device comprises a long cylindrical heat exchange chamber 1 and a heat exchange tube bundle 2, wherein the heat exchange tube bundle 2 is arranged in the heat exchange chamber 1; the heat exchange chamber 1 comprises a long cylindrical shell 3 and at least one end plate 4; referring to fig. 2, the end plate 4 has a thinned portion 5 in the middle and a thick portion 6 in the periphery, the thinned portion 5 is formed by recessing at least one surface of the end plate 4, and the thinned portion 5 is provided with a plurality of bundle holes 7 for the heat exchange tube bundle 2 to pass through. The heat exchange tube bundle 2 is arranged in a cube shape.
The heat exchange chamber 1 is also internally provided with a baffle plate 9, and the heat exchange chamber 1 is provided with a waterway inlet 12 and a waterway outlet 13 for shell-side fluid to enter and exit and flow in the heat exchange chamber 1. The inlet and the outlet of the heat exchange tube bundle 2 are respectively provided with a tube box 8, and the two tube boxes 8 are correspondingly provided with a refrigerant inlet 10 and a refrigerant outlet 11 for the tube pass fluid to flow in and out of the heat exchange tube bundle 2.
The thickness of the thinning part 5 is 1-10 mm. The thinning part 5 is formed by recessing one surface of the end plate 4, the other surface of the end plate 4 is a plane, and the thinning part 5 faces the heat exchange chamber 1. The central area of the thinned portion 5 may be square, oval, circular or a flat bottom rounded corner. The thick section 6 is planar. Referring to fig. 3 and 5, the tube bundle holes 7 are not formed in the two ends of the thickness reduction part 5 in the horizontal direction. Referring to fig. 4, the tube bundle holes 7 are not formed at the two end portions of the thinning portion 5 in the vertical direction.
Referring to fig. 5, the heat exchange tube bundle 2 is divided into three independent groups, and a tube box 8 is respectively provided at the inlet and the outlet of each group of the heat exchange tube bundle 2. The end plate 4 is in an oval flat shape, and three corresponding areas on the end plate 4 are provided with tube bundle holes 7. The heat exchange tube bundle 2 groups can be arranged in a left-middle-right or an upper-middle-lower way. The heat exchange tube bundle 2 group can also be divided into an upper layer and a lower layer, and is distributed in the left, middle and right or in the upper, middle and lower layers.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention. .
Claims (10)
1. A shell-and-tube heat exchanger with thin end plates comprises a long cylindrical heat exchange chamber (1) and a heat exchange tube bundle (2), wherein the heat exchange tube bundle (2) is arranged in the heat exchange chamber (1); the heat exchange chamber (1) comprises a long cylindrical shell (3) and at least one end plate (4); the method is characterized in that: the middle part of the end plate (4) is a thinning part (5), the periphery part of the end plate is a thick section part (6), the thinning part (5) is formed by at least one surface of the end plate (4) in a concave mode, and the thinning part (5) is provided with a plurality of tube bundle holes (7) for the heat exchange tube bundles (2) to penetrate through.
2. The shell and tube heat exchanger with thin end plates of claim 1, wherein: the thickness of the thinning part (5) is 1-10 mm.
3. The shell and tube heat exchanger with thin end plates of claim 1, wherein: the thinning part (5) is formed by recessing one surface of the end plate (4), the other surface of the end plate (4) is a plane, and the thinning part (5) faces to or faces away from the heat exchange chamber (1).
4. The shell and tube heat exchanger with thin end plates of claim 1, wherein: the thinning part (5) is formed by recessing one surface of the end plate (4), and the shape of the recess is an ellipse.
5. The shell and tube heat exchanger with thin end plates of claim 1, wherein: the thinning part (5) is formed by recessing one surface of the end plate (4), and the shape of the recess is circular.
6. The shell and tube heat exchanger with thin end plates of claim 1, wherein: the thinning part (5) is formed by a surface depression of the end plate (4), and the depression is formed by a flat bottom fillet.
7. The shell and tube heat exchanger with thin end plates of claim 1, wherein: the central area of the thinning part (5) is square.
8. The shell and tube heat exchanger with thin end plates of claim 1, wherein: and tube bundle holes (7) are not formed in the end parts of the two sides of the thinning part (5) in the horizontal direction or the vertical direction.
9. The shell and tube heat exchanger with thin end plates of claim 1, wherein: the heat exchange tube bundles (2) are arranged in a cube shape.
10. The shell and tube heat exchanger with thin end plates of claim 1, wherein: the heat exchange tube bundles (2) are divided into a plurality of independent groups, and a tube box (8) is respectively arranged at the inlet and the outlet of each group of heat exchange tube bundles (2).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122084512.9U CN215725336U (en) | 2021-08-31 | 2021-08-31 | Shell-and-tube heat exchanger with thin end plate |
| PCT/CN2021/143316 WO2022143949A1 (en) | 2020-12-31 | 2021-12-30 | Shell and tube heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122084512.9U CN215725336U (en) | 2021-08-31 | 2021-08-31 | Shell-and-tube heat exchanger with thin end plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215725336U true CN215725336U (en) | 2022-02-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122084512.9U Active CN215725336U (en) | 2020-12-31 | 2021-08-31 | Shell-and-tube heat exchanger with thin end plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215725336U (en) |
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2021
- 2021-08-31 CN CN202122084512.9U patent/CN215725336U/en active Active
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