CN204504536U - The welded joint structure of a kind of capillary and reducer pipe - Google Patents
The welded joint structure of a kind of capillary and reducer pipe Download PDFInfo
- Publication number
- CN204504536U CN204504536U CN201420739303.0U CN201420739303U CN204504536U CN 204504536 U CN204504536 U CN 204504536U CN 201420739303 U CN201420739303 U CN 201420739303U CN 204504536 U CN204504536 U CN 204504536U
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- Prior art keywords
- pipe
- arc convex
- capillary
- stress
- welding
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- Expired - Fee Related
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- Branch Pipes, Bends, And The Like (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The utility model provides the welded joint structure of a kind of capillary and reducer pipe, comprise capillary tube connector, the first pipe of reducer pipe, the second pipe, Taper Pipe, special pipe, Taper Pipe is provided with between described first pipe and the second pipe, it is characterized in that: second pipe one end is also provided with special pipe, special pipe cross section is the circle with two arc convex.Distance on shaped face between arc convex and capillary wall is larger than the distance of the reducing tube wall of surrounding and capillary wall, when welding as the starting point of welding, the sweating heat due to moment can be avoided to cause penetrating of tube wall, ensure weldquality; Another effect of arc convex is that reduction nipple can produce larger stress after enlarging process, and the stress around stress is focused on two symmetrical places by arc convex, the stress that can reduce other places is concentrated, welding starting point is arranged on arc convex place by follow-up technique, and the stress eliminating arc convex is concentrated.
Description
Technical field
The utility model relates to the Welding Structure of capillary in a kind of air conditioner industry, the welded joint structure of especially a kind of capillary and reducer pipe.
Background technology
Heat exchanger, as the heat-exchanging part of air-conditioning, in order to carry out heat exchange with the external world, is made up of the pipeline of multiple fin of distributing at regular intervals and through above-mentioned fin.Have the medium flowed in the pipeline of the heat-exchanging part of fin-cylinder structure and carry out heat exchange by multiple fin and the external world, the Forming Quality of the welding mouth of pipe of its heat exchanger is directly connected to the work operation of heat exchanger.
In prior art, capillary just carries out individual layer enlarging process to reducer pipe with welding of reducer pipe, and weldquality is poor, there will be more serious secondary refrigerant leakage situation, affect heat exchange performance after heat exchanger uses a period of time.And the key factor affecting weldquality is the structure of welding point, therefore, Welded Joints is needed to improve.
Summary of the invention
For the deficiencies in the prior art, the utility model provides a kind of welded joint structure of effective raising weldquality, improves the welding performance of capillary and reducer pipe, reduces the not uneven weldquality problem caused of weld seam.
The technical solution of the utility model is: the welded joint structure of a kind of capillary and reducer pipe, comprise capillary tube connector, the first pipe of reducer pipe, the second pipe, Taper Pipe, special pipe, Taper Pipe is provided with between described first pipe and the second pipe, it is characterized in that: second pipe one end is also provided with special pipe, special pipe cross section is the circle with two arc convex.
The tapering of the described conical surface is 18 °.
The beneficial effects of the utility model are: the distance on shaped face between arc convex and capillary wall than the reducing tube wall of surrounding and the distance of capillary wall large, can when welding as the starting point of welding, avoid the sweating heat due to moment to cause penetrating of tube wall, ensure weldquality.Another effect of arc convex is that reduction nipple can produce larger stress after enlarging process, and the stress around stress is focused on two symmetrical places by arc convex, the stress that can reduce other places is concentrated, welding starting point is arranged on arc convex place by follow-up technique, and the stress eliminating arc convex is concentrated.
Accompanying drawing explanation
Fig. 1 is the welded joint structure of a kind of capillary of the utility model and reducer pipe.
Fig. 2 is reducer pipe A-A sectional view of the present utility model
1-capillary tube connector, 2-reducer pipe, 3-first pipe, 4-second pipe, 5-Taper Pipe, 6-special pipe, 7-arc convex.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described further:
As shown in Figure 1-2, the welded joint structure of a kind of capillary and reducer pipe 2, comprise capillary tube connector 1, the first pipe 3, second pipe 4 of reducer pipe 2, Taper Pipe 5, special pipe 6, Taper Pipe 5 is provided with between described first pipe 3 and the second pipe 4, second pipe 4 one end is also provided with special pipe 6, and special pipe 6 cross section is the circle with two arc convex 7.
Distance on special pipe 6 between arc convex 7 and capillary wall is larger than the distance of reducer pipe 2 wall of surrounding and capillary wall, when welding as the starting point of welding, the sweating heat due to moment can be avoided to cause penetrating of tube wall, ensure weldquality.Another effect of arc convex 7 is that reducer pipe 2 joint can produce larger stress after enlarging process, and the stress around stress is focused on two symmetrical places by arc convex 7, the stress that can reduce other places is concentrated, welding starting point is arranged on arc convex 7 place by follow-up technique, and the stress eliminating arc convex 7 is concentrated.
What describe in above-described embodiment and description just illustrates principle of the present utility model and most preferred embodiment; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.
Claims (2)
1. the welded joint structure of a capillary and reducer pipe, comprise capillary tube connector, the first pipe of reducer pipe, the second pipe, Taper Pipe, special pipe, Taper Pipe is provided with between described first pipe and the second pipe, it is characterized in that: second pipe one end is also provided with special pipe, special pipe cross section is the circle with two arc convex.
2., according to the welded joint structure of the capillary described in claim 1 and reducer pipe, it is characterized in that: the tapering of described Taper Pipe is 18 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420739303.0U CN204504536U (en) | 2014-12-02 | 2014-12-02 | The welded joint structure of a kind of capillary and reducer pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420739303.0U CN204504536U (en) | 2014-12-02 | 2014-12-02 | The welded joint structure of a kind of capillary and reducer pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204504536U true CN204504536U (en) | 2015-07-29 |
Family
ID=53702540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420739303.0U Expired - Fee Related CN204504536U (en) | 2014-12-02 | 2014-12-02 | The welded joint structure of a kind of capillary and reducer pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204504536U (en) |
-
2014
- 2014-12-02 CN CN201420739303.0U patent/CN204504536U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150729 Termination date: 20201202 |