CN2641571Y - heat exchange internal thread copper pipe - Google Patents
heat exchange internal thread copper pipe Download PDFInfo
- Publication number
- CN2641571Y CN2641571Y CN 03246219 CN03246219U CN2641571Y CN 2641571 Y CN2641571 Y CN 2641571Y CN 03246219 CN03246219 CN 03246219 CN 03246219 U CN03246219 U CN 03246219U CN 2641571 Y CN2641571 Y CN 2641571Y
- Authority
- CN
- China
- Prior art keywords
- copper pipe
- tooth
- internal thread
- heat exchange
- thread copper
- 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 - Fee Related
Links
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 24
- 239000010949 copper Substances 0.000 title claims abstract description 24
- 230000007704 transition Effects 0.000 claims abstract description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 238000004378 air conditioning Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
Images
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses a heat exchange internal thread copper pipe, it includes internal thread copper pipe, its characterized in that: the cross section of the internal thread of the large-diameter copper pipe with the diameter of more than 11mm is formed by a raised tooth form and a concave inverted trapezoid. The crest angle a of the raised tooth profile is more than 15 degrees, the helix angle B is more than 4 degrees, the tooth height Hf is more than 0.01mm, and the radius R of the transition arc of the crest1Radius of tooth bottom transition circle R2Is 0.03mm or more. The large-diameter internal thread copper pipe is drawn by pressing, so that the heat exchange effect is greatly increased, the volume of the heat exchanger can be reduced, the copper consumption is saved, and the cost is reduced, so that the forming process is easier to control and process.
Description
Technical field:
The utility model relates to a kind of heat exchange inner screw thread copper pipe, particularly increases the pipe fitting of heat-transfer area structure in the inside of pipe.
Background technology:
At present in domestic large-scale refrigeration and the air-conditioning equipment, still adopt light face copper pipe as big caliber heat-exchange tube in the central air conditioning equipment, its shortcoming is: this big caliber light face copper pipe heat exchange performance is poor, has influenced large-scale refrigeration and air-conditioning equipment to efficient, energy-conservation, miniaturization development.
Summary of the invention:
Task of the present utility model is to propose the above inner screw thread copper pipe of a kind of big caliber Φ 11mm, improves heat exchange efficiency, reduces the heat exchanger size effectively.Task of the present utility model is done in such a way that it comprises inner screw thread copper pipe, is characterized in that: above its internal thread cross section of big caliber copper pipe of Φ 11mm is the profile of tooth of protuberance and sunkly falls trapezoidal formation.The profile of tooth addendum angle a of protuberance is more than 15 °, and helical angle B is more than 4 °, and tooth depth Hf is more than the 0.01mm, tooth top transition arc radius R
1With transitional radius R at the bottom of the tooth
2More than 0.03mm.The utlity model has following effect, draw out the bassoon caliber inner screw thread copper pipe by exerting pressure, will increase the heat exchange effect greatly, can dwindle heat exchanger volume, saved copper consumption, reduced cost, thereby make easier control of forming process and processing.
Description of drawings:
Fig. 1 is the local copper pipe profile of the utility model, and Fig. 2 is the enlarged drawing of copper pipe cross section part, and the drawing explanation: 1. copper pipe 2. profiles of tooth 3. are trapezoidal, be that symbol description among the figure: Hf is that tooth depth a is the drift angle of tooth below, B is a tooth lead angle in axial direction, and n is the screw thread bar number of tooth, R
1Be tooth top circular arc knuckle radius, R
2Be arc transition radius at the bottom of the tooth, TW is that the copper pipe diapire is thick.
Specific embodiment:
Describing embodiment in detail in conjunction with above accompanying drawing, is that the profile of tooth 2 and sunk fall of protuberance trapezoidal 3 constitutes for the internal thread cross section of bassoon caliber inner screw thread copper pipe 1.When selected external diameter was 12.7mm, spiral bar was counted the n=65 bar, lead angle B=18 °, tooth depth Hf=0.25mm, addendum angle a=50 °, the thick TW=0.4mm of diapire is when being 15.88mm as selected external diameter, adopt the screw thread bar to count the n=74 bar, lead angle B=18 °, tooth depth Hf=0.3mm, addendum angle a=53 °, the thick TW=0.52mm of diapire is with circular arc R at tooth top
1The surface blending moulding, switching place is with circular arc R at the bottom of the tooth
2Surface blending constitutes.
Claims (2)
1. heat exchange inner screw thread copper pipe, it comprises inner screw thread copper pipe, it is characterized in that: above its internal thread cross section of big caliber copper pipe of Φ 11mm is the profile of tooth of protuberance and sunkly falls trapezoidal formation.
2. heat exchange inner screw thread copper pipe according to claim 1, it is characterized in that: the profile of tooth addendum angle a of protuberance is more than 15 °, helical angle B is more than 4 °, and tooth depth Hf is more than the 0.01mm, and transitional radius R2 is more than the 0.03mm at the bottom of tooth top transition arc radius R1 and the tooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03246219 CN2641571Y (en) | 2003-07-21 | 2003-07-21 | heat exchange internal thread copper pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03246219 CN2641571Y (en) | 2003-07-21 | 2003-07-21 | heat exchange internal thread copper pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2641571Y true CN2641571Y (en) | 2004-09-15 |
Family
ID=34292584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03246219 Expired - Fee Related CN2641571Y (en) | 2003-07-21 | 2003-07-21 | heat exchange internal thread copper pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2641571Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102297292A (en) * | 2011-08-10 | 2011-12-28 | 中色奥博特铜铝业有限公司 | Ultra-thin-walled seamless copper pipe for air-conditioning and refrigerating equipment |
| CN106610242A (en) * | 2015-10-22 | 2017-05-03 | 青岛海尔新能源电器有限公司 | Internally-threaded copper tube and heat exchange equipment with same |
| CN111288597A (en) * | 2020-03-09 | 2020-06-16 | 嘉兴学院 | Static ice storage air conditioning system of distributed photovoltaic efficient direct-drive multi-connected micro-tube evaporator |
| CN111322798A (en) * | 2020-03-09 | 2020-06-23 | 云南师范大学 | Immersion type static ice making micro-tube evaporator for ice storage air conditioning system |
-
2003
- 2003-07-21 CN CN 03246219 patent/CN2641571Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102297292A (en) * | 2011-08-10 | 2011-12-28 | 中色奥博特铜铝业有限公司 | Ultra-thin-walled seamless copper pipe for air-conditioning and refrigerating equipment |
| CN106610242A (en) * | 2015-10-22 | 2017-05-03 | 青岛海尔新能源电器有限公司 | Internally-threaded copper tube and heat exchange equipment with same |
| CN111288597A (en) * | 2020-03-09 | 2020-06-16 | 嘉兴学院 | Static ice storage air conditioning system of distributed photovoltaic efficient direct-drive multi-connected micro-tube evaporator |
| CN111322798A (en) * | 2020-03-09 | 2020-06-23 | 云南师范大学 | Immersion type static ice making micro-tube evaporator for ice storage air conditioning system |
| CN111288597B (en) * | 2020-03-09 | 2022-01-14 | 嘉兴学院 | Static ice storage air conditioning system of distributed photovoltaic efficient direct-drive multi-connected micro-tube evaporator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040915 Termination date: 20100721 |