CN2752703Y - Internal and external thread heat exchanging steel pipe - Google Patents
Internal and external thread heat exchanging steel pipe Download PDFInfo
- Publication number
- CN2752703Y CN2752703Y CN 200420110119 CN200420110119U CN2752703Y CN 2752703 Y CN2752703 Y CN 2752703Y CN 200420110119 CN200420110119 CN 200420110119 CN 200420110119 U CN200420110119 U CN 200420110119U CN 2752703 Y CN2752703 Y CN 2752703Y
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- CN
- China
- Prior art keywords
- pipe
- heat exchanging
- internal
- heat
- groove
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- 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
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Abstract
The utility model belongs to the technical field of heat exchanging equipment, and particularly relates to a structural improvement of an inner and outer thread heat exchanging steel pipe which is used in refrigeration devices such as air conditioners, refrigerated cabinets, refrigerators, cold storages, etc. The utility model primarily solves the technical problems that the contact area of the existing heat exchanging pipe and heat exchanging medium is too small, the heat exchange efficiency is not enhanced, etc. The inner and outer thread heat exchanging steel pipe comprises a pipe body, wherein the surroundings of the inner and the outer walls of the pipe body are provided with grooves; the shapes of the grooves are spiral. The utility model is characterized in that the pipe wall thickness of the pipe body with the grooves is thinner than the pipe wall thickness of the pipe body without the grooves.
Description
Technical field
The utility model relates to a kind of heat-exchange apparatus technical field, especially relates to a kind of to using the isostructural improvement of steel heat-exchanger pipe with internal and external threads in refrigeration plants such as air-conditioning, refrigerator, refrigerator, freezer.
Background technology
Existing cold and hot exchange pipe is such as condenser pipe, the evaporation tube of refrigerator.The heat exchangers that radiator tube that automobile is used and chemical system are used etc. all belong to direct piping, and liquid, gas and tube wall contact area are little in the pipeline, and promptly heat exchange efficiency is low.The liquid that flows in the pipeline, gas flow is constant, makes near the liquid that flows the conduit axis, and gas does not have condition to contact with tube wall, the liquid of near axis in then managing, gas converting heat efficient is lower.Chinese patent discloses a kind of ripple spiral heat exchange tube (application number: 01211430.8), the technical scheme that it adopts is: the ripple spiral heat exchange tube forms by metal seamless tubing is rolling, its outer surface becomes bellows-shaped, inner surface also is a bellows-shaped, and inside and outside external waviness becomes continuous spiral trend.But this structure is because inside and outside surface is a bellows-shaped, just level and smooth wall body made into corrugatedly, do not increase the contact area of heat exchanger tube and heat exchange media, so do not reach the effect of enhancing heat exchange efficiency.
Summary of the invention
The utility model mainly is that to solve the existing in prior technology heat exchanger tube too little with the contact area of heat exchange media, does not reach the technical problem of enhancing heat exchange efficiency etc.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals:
Steel heat-exchanger pipe with internal and external threads of the present utility model comprises body, is provided with groove around inboard wall of tube body and the outer wall, and the groove trend is characterized in that for spirality described body is provided with the pipe thickness of groove less than the pipe thickness of not establishing groove.Inside and outside wall is provided with cancavo-convex groove, can increase the contact area of liquid, gas and tube wall, thus the exchange of accelerated heat.
As preferably, described groove trend is spirality.Can be so that the liquid eddy flow, thus the exchange of accelerated heat.
As preferably, described heat-exchange tube is rolled into the tubulose welding by steel band and constitutes.Heat-exchange tube also can with other heat conductivilitys preferably material make.
As preferably, the thickness of pipe wall of described body is 0.4～0.8mm, and the gash depth of outer wall is 0.1～0.3mm.The thickness of pipe wall of body can be 0.3mm, and gash depth is 0.18mm, is beneficial to heat-shift like this.
As preferably, the addendum angle α of spiral groove is 20 °≤α≤40 °, and angle of rifling β is 65 °≤β≤78 °.Addendum angle α is 30 °, and angle of rifling β is 18 °, can increase contact area.
Therefore, the utlity model has the contact area that has increased heat exchanger tube and heat exchange media, reach the enhancing heat exchange efficiency, characteristics such as rational in infrastructure.
Description of drawings
Accompanying drawing 1 is a kind of structural representation of the present utility model;
Accompanying drawing 2 is a kind of cutaway views of Fig. 1.
The specific embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: the steel heat-exchanger pipe with internal and external threads that this is routine, as Fig. 1, Fig. 2, the body that has a steel to make, body is rolled into the tubulose welding by the band-like steel material and makes.Be provided with groove around the inside and outside wall of body.The trend of groove is a spirality.The diapire of body is thick to be 0.3mm, and gash depth is 0.18mm; The addendum angle α of spiral groove is 30 °, and angle of rifling β is 72 °.
During use, steel heat-exchanger pipe with internal and external threads is assemblied in the refrigeration plants such as air-conditioning, refrigerator, refrigerator, freezer.Because in the body, the existence of inside and outside wall spiral groove has increased the contact area of heat exchanger tube and heat exchange media, can make the cold and hot medium formation eddy flow that body is inside and outside, reaches the effect of heat exchange.
Claims (5)
1. a steel heat-exchanger pipe with internal and external threads comprises body, is provided with groove around inboard wall of tube body and the outer wall, and the groove trend is characterized in that for spirality described body is provided with the pipe thickness of groove less than the pipe thickness of not establishing groove.
2. steel heat-exchanger pipe with internal and external threads according to claim 1 is characterized in that described heat-exchange tube is rolled into the tubulose welding by steel band and constitutes.
3. steel heat-exchanger pipe with internal and external threads according to claim 1 and 2, the thickness of pipe wall that it is characterized in that described body is 0.4～0.8mm, the gash depth of inside and outside wall is 0.1～0.3mm.
4. steel heat-exchanger pipe with internal and external threads according to claim 1 and 2, the addendum angle α that it is characterized in that spiral groove are 20 °≤α≤40 °, and angle of rifling β is 65 °≤β≤78 °.
5. steel heat-exchanger pipe with internal and external threads according to claim 3, the addendum angle α that it is characterized in that spiral groove are 20 °≤α≤40 °, and angle of rifling β is 65 °≤β≤78 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420110119 CN2752703Y (en) | 2004-11-17 | 2004-11-17 | Internal and external thread heat exchanging steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420110119 CN2752703Y (en) | 2004-11-17 | 2004-11-17 | Internal and external thread heat exchanging steel pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2752703Y true CN2752703Y (en) | 2006-01-18 |
Family
ID=35914113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420110119 Expired - Lifetime CN2752703Y (en) | 2004-11-17 | 2004-11-17 | Internal and external thread heat exchanging steel pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2752703Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112196982A (en) * | 2020-09-30 | 2021-01-08 | 安徽维嵩生产力促进有限公司 | Negative pressure cooling mechanism of new energy automobile gearbox |
-
2004
- 2004-11-17 CN CN 200420110119 patent/CN2752703Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112196982A (en) * | 2020-09-30 | 2021-01-08 | 安徽维嵩生产力促进有限公司 | Negative pressure cooling mechanism of new energy automobile gearbox |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: QIANDAOHU KANGSHENG REFRIGERATING PIPELINE RESEAR Free format text: FORMER OWNER: CHEN HANKANG Effective date: 20060210 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20060210 Address after: 311700, Zhejiang County, Chunan Province, Lake Town, Pai Ling North Road, No. 8 Patentee after: Qiandaohu Kangsheng Refrigerating Pipeline Research Development Co., Ltd., Chuan Address before: 311700, Zhejiang County, Chunan Province, Lake Town, Pai Ling North Road, No. 8 Patentee before: Chen Hankang |
|
| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG KANGSHENG CO., LTD. Free format text: FORMER OWNER: QIANDAOHU KANGSHENG REFRIGERATING PIPELINE RESEARCH DEVELOPMENT CO., LTD., CHUAN Effective date: 20070824 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20070824 Address after: Zhejiang province Chunan County town 311700 Kuril Pingshan Industrial Park Patentee after: Zhejiang Kangsheng Co., Ltd. Address before: 311700, Zhejiang County, Chunan Province, Lake Town, Pai Ling North Road, No. 8 Patentee before: Qiandaohu Kangsheng Refrigerating Pipeline Research Development Co., Ltd., Chuan |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20141117 Granted publication date: 20060118 |