CN220708189U - External thread joint of heat exchanger - Google Patents
External thread joint of heat exchanger Download PDFInfo
- Publication number
- CN220708189U CN220708189U CN202322032210.6U CN202322032210U CN220708189U CN 220708189 U CN220708189 U CN 220708189U CN 202322032210 U CN202322032210 U CN 202322032210U CN 220708189 U CN220708189 U CN 220708189U
- Authority
- CN
- China
- Prior art keywords
- pipe
- heat exchanger
- joint
- shrinkage
- utility
- 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.)
- Active
Links
- 238000007789 sealing Methods 0.000 claims description 7
- 239000003973 paint Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 abstract description 9
- 230000007547 defect Effects 0.000 abstract description 4
- 238000005096 rolling process Methods 0.000 abstract description 4
- 238000003754 machining Methods 0.000 abstract 1
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Abstract
The utility model discloses an external thread connector of a heat exchanger, which comprises a heat exchanger body with a pipe connector, wherein the tail end of the pipe connector is of a shrinkage pipe structure which is formed by shrinkage machining, and external threads are arranged on the outer wall surface of the shrinkage pipe. The utility model reduces the processing position of the seamless pipe thread with phi 25 multiplied by 1.8 to the outer diameter phi 21 on the pipe shrinking machine, and then the outer screw of G1/2 is processed by thread rolling, so that the heat exchanger joint is not required to be welded, and the defects of welding seam leakage and the like caused by welding are reduced.
Description
Technical Field
The utility model relates to an external thread joint of a heat exchanger.
Background
A certain heat exchanger in the company is formed by winding seamless steel pipes with the thickness of phi 25 multiplied by 1.8, the threads of a heat exchanger joint connected with a heat source are G1/2 external threads, and when the heat exchanger is produced in the original process, the heat exchanger is wound and then welded with the heat exchanger joint. Because the thickness of the welding joint is controlled within the assembly requirement range, the welding joint is thinner, and the defects of leakage and fracture are easy to occur at the welding joint.
Disclosure of Invention
The utility model aims to solve the problems in the prior art and provides a heat exchanger external thread joint.
The utility model adopts the technical scheme that:
the utility model provides a heat exchanger external thread connects, includes the heat exchanger body that has the pipe connection, the terminal of pipe connection is the shrink mouth pipe structure that forms the shrink through the processing of draw machine, is equipped with the external screw thread on the outer wall surface of shrink mouth pipe.
Further, waterproof paint is coated on the outer wall of the necking pipe.
Further, a step surface is formed at the junction of the necking pipe and the pipe joint, a sealing ring is sleeved on the necking pipe, and the sealing ring is abutted to the step surface.
The utility model has the following beneficial effects:
the utility model reduces the processing position of the seamless pipe thread with phi 25 multiplied by 1.8 to the outer diameter phi 21 on the pipe shrinking machine, and then the outer screw of G1/2 is processed by thread rolling, so that the heat exchanger joint is not required to be welded, and the defects of welding seam leakage and the like caused by welding are reduced.
Drawings
Fig. 1 is a structural diagram of the present utility model.
Description of the embodiments
The utility model is further described below with reference to the accompanying drawings.
Referring to fig. 1, the external thread joint for the heat exchanger comprises a heat exchanger body 1 with a pipe joint 11, wherein the tail end of the pipe joint 11 is a shrinking pipe structure which is formed by shrinking machine processing and is shrunk inwards, and external threads 12 are processed on the outer wall surface of the shrinking pipe by thread rolling.
The outer wall of the necking pipe is coated with waterproof paint. The junction of the necking pipe and the pipe joint 11 forms a step surface, a sealing ring is sleeved on the necking pipe, and the sealing ring is abutted against the step surface. The sealing ring ensures the tightness of the assembly.
The utility model reduces the processing position of the seamless pipe thread with phi 25 multiplied by 1.8 to the outer diameter phi 21 on the pipe shrinking machine, and then the outer screw with G1/2' is processed by thread rolling, so that the heat exchanger joint is not required to be welded, and the defects of welding seam leakage and the like caused by welding are reduced.
The foregoing is merely a preferred embodiment of the utility model, and it should be noted that modifications could be made by those skilled in the art without departing from the principles of the utility model, which modifications would also be considered to be within the scope of the utility model.
Claims (3)
1. Heat exchanger external thread joint, comprising a heat exchanger body (1) with a pipe connection (11), characterized in that: the tail end of the pipe joint (11) is of a shrinkage pipe structure which is formed by shrinkage through pipe shrinking machine processing, and an external thread (12) is arranged on the outer wall surface of the shrinkage pipe.
2. The heat exchanger external screw joint according to claim 1, wherein: the outer wall of the necking pipe is coated with waterproof paint.
3. The heat exchanger external screw joint according to claim 1, wherein: the junction of the necking pipe and the pipe joint (11) forms a step surface, a sealing ring is sleeved on the necking pipe, and the sealing ring is abutted to the step surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322032210.6U CN220708189U (en) | 2023-07-31 | 2023-07-31 | External thread joint of heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322032210.6U CN220708189U (en) | 2023-07-31 | 2023-07-31 | External thread joint of heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220708189U true CN220708189U (en) | 2024-04-02 |
Family
ID=90435499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322032210.6U Active CN220708189U (en) | 2023-07-31 | 2023-07-31 | External thread joint of heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220708189U (en) |
-
2023
- 2023-07-31 CN CN202322032210.6U patent/CN220708189U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |