CN211346432U - U-shaped pipe heat exchanger anti-loosening device - Google Patents
U-shaped pipe heat exchanger anti-loosening device Download PDFInfo
- Publication number
- CN211346432U CN211346432U CN201921983013.XU CN201921983013U CN211346432U CN 211346432 U CN211346432 U CN 211346432U CN 201921983013 U CN201921983013 U CN 201921983013U CN 211346432 U CN211346432 U CN 211346432U
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- China
- Prior art keywords
- side flange
- tube
- heat exchanger
- shaped pipe
- shell side
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Abstract
The utility model provides a U-shaped pipe heat exchanger locking device, its characterized in that: a tube plate is arranged between the tube side flange and the shell side flange, an anti-loosening support lug is welded on the tube plate, a shouldered part of the shouldered stud is arranged in a clamping groove of the anti-loosening support lug, and two ends of the shouldered stud penetrate through holes of the tube side flange and the shell side flange respectively and are connected and fastened through nuts. Has the advantages of easy fastening, difficult loosening and the like.
Description
Technical Field
The utility model relates to a locking device of U-shaped pipe heat exchanger for petrochemical industry.
Background
In a U-shaped tube heat exchanger, the sealing between a tube plate and a tube shell side flange is particularly important, especially when a tube box of the heat exchanger needs to be maintained and disassembled on a tube side, the sealing between the tube plate and the tube shell side flange can be loosened, so that shell side medium leakage can be caused, and in addition, in the bolt pre-tightening process, the tube plate is clamped by the tube shell side flange and is not easy to tighten, so that the flange sealing leakage can be caused.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model aims to provide a locking device for a U-shaped tube heat exchanger.
The utility model discloses purpose technical solution does: the utility model provides a U-shaped pipe heat exchanger locking device which characterized in that: a tube plate is arranged between the tube side flange and the shell side flange, an anti-loosening support lug is welded on the tube plate, a shouldered part of the shouldered stud is arranged in a clamping groove of the anti-loosening support lug, and two ends of the shouldered stud penetrate through holes of the tube side flange and the shell side flange respectively and are connected and fastened through nuts.
The utility model discloses the beneficial effect who creates is: the problem of U-shaped pipe heat exchanger tube side need overhaul when dismantling the pipe case, the sealed of tube sheet and shell side flange can take place to relax, can lead to shell side medium to leak and the bolt is difficult to the fastening is solved.
Drawings
Fig. 1 is a front view of an embodiment of the present invention.
Fig. 2 is a view a-a of the front view of the embodiment of the present invention.
In the figure: 1. the pipe side flange 2, the screw bolt with shoulder 3, the anti-loose support lug 4, the shell side flange 5 and the pipe plate.
Detailed Description
The embodiment is described in the following by combining the accompanying drawings, wherein the anti-loosening device for the U-shaped tube heat exchanger comprises a tube side flange 1, a shouldered stud 2, an anti-loosening lug 3 and a shell side flange 4, the anti-loosening lug 3 is welded on a tube plate 5 under the action of the tube side flange 1 and the shell side flange 4, and the shouldered part of the shouldered stud 2 is arranged in a clamping groove of the anti-loosening lug 3, so that the limiting and anti-loosening effects are achieved.
Claims (1)
1. The utility model provides a U-shaped pipe heat exchanger locking device which characterized in that: be equipped with tube sheet (5) between tube side flange (1) and shell side flange (4), tube sheet (5) welding have locking journal stirrup (3), the shouldered part of shouldered double-screw bolt (2) is installed in the draw-in groove of locking journal stirrup (3), both ends pass tube side flange (1) and shell side flange (4) through-hole respectively and pass through the nut connection fastening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921983013.XU CN211346432U (en) | 2019-11-18 | 2019-11-18 | U-shaped pipe heat exchanger anti-loosening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921983013.XU CN211346432U (en) | 2019-11-18 | 2019-11-18 | U-shaped pipe heat exchanger anti-loosening device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211346432U true CN211346432U (en) | 2020-08-25 |
Family
ID=72134568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921983013.XU Active CN211346432U (en) | 2019-11-18 | 2019-11-18 | U-shaped pipe heat exchanger anti-loosening device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211346432U (en) |
-
2019
- 2019-11-18 CN CN201921983013.XU patent/CN211346432U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 116600 No. 73, Zhenpeng industrial city, Dalian Economic and Technological Development Zone, Liaoning Province Patentee after: Shuifa PAISI Gas Co.,Ltd. Address before: No.42, Fuquan North Road, Dalian Economic and Technological Development Zone, Liaoning 116600 Patentee before: DALIAN ENERGAS GAS-SYSTEM CO.,LTD. |