CN201126327Y - Flexible thin plate tube heat exchanger for high temperature gas-gas heat exchange - Google Patents
Flexible thin plate tube heat exchanger for high temperature gas-gas heat exchange Download PDFInfo
- Publication number
- CN201126327Y CN201126327Y CNU2007200300143U CN200720030014U CN201126327Y CN 201126327 Y CN201126327 Y CN 201126327Y CN U2007200300143 U CNU2007200300143 U CN U2007200300143U CN 200720030014 U CN200720030014 U CN 200720030014U CN 201126327 Y CN201126327 Y CN 201126327Y
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- expansion joint
- gas
- heat exchange
- flexible thin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910000963 austenitic stainless steel Inorganic materials 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The model utility relates to a flexible thin tube plate heat exchanger for hot gas-gas heat exchanging, belonging to hot gas heat exchanging domain for petrochemical industry, comprising a heat exchanger body with a shell pass entry and a roller support, and an expansion joint mounted on the heat exchanger. The expansion joint is composed of two symmetrical half wave expansion joints, a straight edge segment between the two half wave expansion joints wherein the roller support and shell pass entry are located on the straight edge segment of the expansion joint. The model utility has simple structure and easy to process, and reduces the material of high cost and the weight of the entire heat exchanger and prolongs the use life, in the state of the same technological parameter.
Description
Technical field
The utility model belongs to petrochemical industry with high-temperature gas heat exchange field, specifically is a kind of High Temperature Gas-gas heat exchange Methodology for Flexible Thin Tube Sheet heat exchanger.
Background technology
Shell-and-tube heat exchanger is one of present petroleum chemical industry equipment commonly used, and conventional prior art shell-and-tube heat exchanger pattern has floating head type, U type tubular type and fixed tube sheet type.Because the tube sheet of this class shell-and-tube heat exchanger does not allow distortion, must be rigid pipe, so tube sheet is thicker relatively; Movable tube sheets heat exchanger and U type pipe heat exchanger can well solve the problem of thermal (temperature difference) stress, and when the less pressure of technological requirement fell, its structure can't be used; To fixed tube-sheet exchanger, when for pipe, when shell side is one way, it is less that pressure falls, but when the shell journey temperature difference, thermal (temperature difference) stress can't solve, weld seam drawing crack between tube-to-tube sheet connection, equipment failure.Though can be by expansion joint is set, reduce thermal (temperature difference) stress, but because unit scale constantly enlarges, the part heat exchanger surpasses the scope of GB151-1999 " shell-and-tube heat exchanger " (being suitable for maximum gauge 2600mm) and GB16749-1997 " pressure vessel corrugated-type expansion joint " standard code, causes the governed situation of the no standard of design.Simultaneously, to the austenitic stainless steel expansion joint that is provided with, the part processing medium is inapplicable.Therefore demand urgently prior art is improved, just can better guarantee to use the ordinary production of enterprise.
The utility model content
The purpose of this utility model is to solve above-mentioned deficiency of the prior art, prior art is improved, provide a kind of simple in structure, be easy to processing, under the identical situation of technological parameter, the expensive material of equipment is used and is reduced, and the equipment overall weight reduces, High Temperature Gas-gas heat exchange Methodology for Flexible Thin Tube Sheet heat exchanger that service life of equipment prolongs.
For achieving the above object, the utility model is achieved through the following technical solutions:
It is a kind of High Temperature Gas-gas heat exchange Methodology for Flexible Thin Tube Sheet heat exchanger, comprise the heat exchange body that has shell side inlet, roller support, and be arranged at expansion joint on the heat exchange body, the present technique main points are that expansion joint is two symmetrical half-wave expansion joint structures, be straight section between two half-wave expansion joints, roller support and shell side inlet are positioned on the straight section of expansion joint.
The wall thickness of described expansion joint straight section is greater than the wall thickness of expansion joint, and thicker so middle straight section improves the rigidity of expansion joint and the plane instability that part solves expansion joint.
The utility model is after above-mentioned improvement, because expansion joint is improved, and the installation site to expansion joint is adjusted, when making high-temperature flue gas pass through heat exchanger tube, when tube bank is subjected to thermal stretching, and the shell side temperature is lower, because the effect of the temperature difference, housing thermal expansion elongation is little than heat exchanger tube, but the tube bank elongation is subjected to the constraint of housing, therefore tube bank is subjected to compression, and housing is subjected to bigger tension.Owing to expansion joint is housed on the housing, make the suffered tension of housing reduce, thereby improve attachment weld stressed of heat exchanger tube and tube sheet, reduce pulling-out force.So promptly solved the thermal (temperature difference) stress problem, strengthened the rigidity of heat exchanger again, had simple in structurely, be easy to processing, under the identical situation of technological parameter, the expensive material of equipment is used and is reduced, and the equipment overall weight reduces, the advantage that service life of equipment prolongs.
Description of drawings
Below in conjunction with accompanying drawing the utility model is described in further detail:
Fig. 1: the utility model structural representation.
The specific embodiment
As shown in Figure 1, this High Temperature Gas-gas heat exchange Methodology for Flexible Thin Tube Sheet heat exchanger, comprise the heat exchange body 1 that has shell side inlet 5, roller support 2, and be arranged at expansion joint on the heat exchange body 1, the present technique main points are that expansion joint is symmetrical two half-wave expansion joint 3-1,3-2 structure, between two half-wave expansion joint 3-1,3-2 is straight section 4, and roller support 2 and shell side inlet 5 are positioned on the straight section 4 of expansion joint.
The wall thickness of described expansion joint straight section 4 is greater than the wall thickness of expansion joint, and thicker so middle straight section improves the rigidity of expansion joint and the plane instability that part solves expansion joint.
The operation principle of using the utility model heat exchanger product is same as the prior art, is not described in detail once more.
The utility model is after above-mentioned improvement, because expansion joint is improved, and the installation site to expansion joint is adjusted, when making high-temperature flue gas pass through heat exchanger tube, when tube bank is subjected to thermal stretching, and the shell side temperature is lower, because the effect of the temperature difference, housing thermal expansion elongation is little than heat exchanger tube, but the tube bank elongation is subjected to the constraint of housing, therefore tube bank is subjected to compression, and housing is subjected to bigger tension.Owing to expansion joint is housed on the housing, make the suffered tension of housing reduce, thereby improve attachment weld stressed of heat exchanger tube and tube sheet, reduce pulling-out force.So promptly solved the thermal (temperature difference) stress problem, strengthened the rigidity of heat exchanger again, had simple in structurely, be easy to processing, under the identical situation of technological parameter, the expensive material of equipment is used and is reduced, and the equipment overall weight reduces, the advantage that service life of equipment prolongs.
Claims (2)
1, a kind of High Temperature Gas-gas heat exchange Methodology for Flexible Thin Tube Sheet heat exchanger, comprise the heat exchange body that has shell side inlet, roller support, and be arranged at expansion joint on the heat exchange body, it is characterized in that expansion joint is two symmetrical half-wave expansion joint structures, be straight section between two half-wave expansion joints, roller support and shell side inlet are positioned on the straight section of expansion joint.
2, High Temperature Gas according to claim 1-gas heat exchange Methodology for Flexible Thin Tube Sheet heat exchanger is characterized in that the wall thickness of the wall thickness of expansion joint straight section greater than expansion joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200300143U CN201126327Y (en) | 2007-10-31 | 2007-10-31 | Flexible thin plate tube heat exchanger for high temperature gas-gas heat exchange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200300143U CN201126327Y (en) | 2007-10-31 | 2007-10-31 | Flexible thin plate tube heat exchanger for high temperature gas-gas heat exchange |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201126327Y true CN201126327Y (en) | 2008-10-01 |
Family
ID=39999795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200300143U Expired - Lifetime CN201126327Y (en) | 2007-10-31 | 2007-10-31 | Flexible thin plate tube heat exchanger for high temperature gas-gas heat exchange |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201126327Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102564166A (en) * | 2012-02-17 | 2012-07-11 | 合肥通用机械研究院 | Disc-shaped tube-sheet heat exchanger with flexible connecting rings |
| CN109682248A (en) * | 2018-12-29 | 2019-04-26 | 哈电集团（秦皇岛）重型装备有限公司 | A kind of C-shaped set of heat exchange tubes accurate adjusting device |
-
2007
- 2007-10-31 CN CNU2007200300143U patent/CN201126327Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102564166A (en) * | 2012-02-17 | 2012-07-11 | 合肥通用机械研究院 | Disc-shaped tube-sheet heat exchanger with flexible connecting rings |
| CN109682248A (en) * | 2018-12-29 | 2019-04-26 | 哈电集团（秦皇岛）重型装备有限公司 | A kind of C-shaped set of heat exchange tubes accurate adjusting device |
| CN109682248B (en) * | 2018-12-29 | 2024-05-28 | 哈电集团（秦皇岛）重型装备有限公司 | Accurate adjusting device of C-shaped heat exchange tube group |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081001 |