CN103471442A - Copper coil pipe for solar air conditioner - Google Patents
Copper coil pipe for solar air conditioner Download PDFInfo
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- CN103471442A CN103471442A CN2013104556430A CN201310455643A CN103471442A CN 103471442 A CN103471442 A CN 103471442A CN 2013104556430 A CN2013104556430 A CN 2013104556430A CN 201310455643 A CN201310455643 A CN 201310455643A CN 103471442 A CN103471442 A CN 103471442A
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- heat exchange
- metal ribs
- coil pipe
- copper coil
- ribs
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Abstract
The invention relates to a copper coil pipe for a solar air conditioner. The copper coil pipe comprises metal rib clusters which are distributed in a spiral angle; the distance between the top parts of adjacent metal ribs is larger than that between the root parts of the adjacent metal ribs. The copper coil pipe has the advantages that due to the structure, although the heat exchange area is not enlarged, the flowing state of fluid is changed, and the heat exchange rate is increased in unit time, i.e., the heat exchange speed of a liquid refrigerant at the top parts of the ribs is increased, so that the whole heat exchange efficiency of the copper coil pipe can be improved and the heat exchange efficiency is increased by 15%-20%.
Description
Technical field
The solar airconditioning bronze pan tube
Background technology
Heat exchanger is that the key of refrigeration plant forms, and heat exchanger in the past all adopts smooth copper, inefficiency, and manufacturing expense is high.For improving and enhanced heat exchange efficiency, developed the thin-wall internal thread pipe abroad in the seventies, rolled threaded at the copper pipe inwall.Riffled tube has increased internal surface area and has improved flowing of heat-exchange fluid, has improved rate of heat exchange.Current external air-conditioner, the manufacturer of heat exchanger adopts the thin-wall internal thread pipe mostly, and domestic many producers also conduct a research to this, below just its evolution and production requirement are done to a brief introduction.
Inner screw thread copper pipe is the air-conditioner copper tube of the high heat exchange coefficient of the external research and development seventies, is characterized in that the copper pipe inner surface has the metal ribs bunch of some, certain spiral angle and rib drift angle.
Why the heat exchange coefficient of inner screw thread copper pipe increases is because what time following:
The boiling aspect:
(1) increased heat exchange area (be about light face smooth tubes inner surface area 1.6～1.9 times);
(2), due to the capillarity of groove between metal ribs, increased the lubricated area of cold-producing medium;
(3) due to the cause of groove between spiral ribs, to cold-producing medium turbulization (turbulent flow) stirring action, (once inside pipe wall is left in the cold-producing medium heat absorption, inside pipe wall reduces the absorbability of cold-producing medium heat at once.Therefore, cold-producing medium can obtain stirring just very important along the inside pipe wall spiral ribs);
(4) there is the metal ribs of sharp-pointed drift angle to make the increase of counting of liquid refrigerant ucleate boiling, be convenient to the liquid refrigerant heat absorption and flash to steam state.
The condensation aspect:
(1) increased heat exchange area;
(2) inclined-plane of metal ribs and wedge angle make the condensing zone surface produce the tension force effect, continue to reduce the thickness of rib top liquid refrigerant, are convenient to vaporized refrigerant and are condensed into and liquid flow down along inclined-plane.
Hence one can see that, adjusts the metal ribs addendum angle, highly, the tooth parameters such as bottom land width, make to moisten Zhou Changdu and hold that liquid level is long-pending to be increased, and make to manage that external diameter reduces and the thick attenuation of diapire as far as possible, to save material, improving heat exchange coefficient is research direction and the development trend of inner screw thread copper pipe.Hence one can see that improves heat exchange efficiency, and conventional method is: the one, and can increase mean temperature difference, but limited by production technology, can not arbitrarily change; The 2nd, enlarge heat exchange area; The 3rd, improve heat transfer coefficient.
Recently, a kind of stage teeth inner screw thread copper pipe has appearred again, alternate, the more traditional equal-depth teeth inner screw thread copper pipe of its metal ribs profile of tooth height height, and heat exchange efficiency improves 6%～10%.
Yet heat exchange efficiency is still well below Expected Results.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of solar airconditioning bronze pan tube, and this bronze pan tube improves heat exchange efficiency greatly.
In order to solve the problems of the technologies described above, technical scheme of the present invention is:
A kind of solar airconditioning bronze pan tube, comprise that the metal ribs bunch of its inner surface, described rib bunch are spiral angle and distribute, and between adjacent metal ribs, in place, metal ribs top distance, is greater than root place distance.
Between adjacent metal ribs in metal ribs root place distance and place, top distance than be 0.3-0.7, preferably between adjacent metal ribs at metal ribs root place distance and place, top apart from than being 0.6.
The bronze pan tube of structure of the present invention is conducive to exchange heat, and heat is changed efficiency and improved 15%～20%, reduces energy consumption 12%.
The accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Fig. 1 is structural representation of the present invention.
The specific embodiment
As shown in Figure 1, solar airconditioning comprises the metal ribs bunch of its inner surface with bronze pan tube 1, and described metal ribs bunch is spiral angle and distributes.Be greater than root place distance in metal ribs 2 place, top distances between adjacent metal ribs 2, between adjacent metal ribs 2 in metal ribs 2 root places distances and place, top distance than be 0.3-0.7, optimal selection be between adjacent metal ribs 2 at metal ribs 2 root places distances and place, top apart from than being 0.6.
Traditional raising heat exchange efficiency is to improve heat transfer coefficient of heat exchanger, and the heat transfer coefficient of the bronze pan tube adopted has at present reached to ultimate attainment, therefore only from structure, considers to improve heat transfer coefficient.
Although structure of the present invention does not increase heat exchange area, but this structural change the fluidised form of fluid, increased exchange rate within the unit interval, increase the heat transfer rate of rib top liquid refrigerant, thereby can improve the overall heat exchange efficiency of bronze pan tube, heat is changed efficiency and has been improved 15%～20%.
Above-described embodiment does not limit the present invention in any way, and every employing is equal to replaces or technical scheme that the mode of equivalent transformation obtains all drops in protection scope of the present invention.
Claims (3)
1. a solar airconditioning bronze pan tube, comprise the metal ribs bunch of its inner surface, and described rib bunch is spiral angle and distributes, and it is characterized in that: between adjacent metal ribs, in place, metal ribs top distance, be greater than root place distance.
2. solar airconditioning bronze pan tube according to claim 1, is characterized in that: between adjacent metal ribs, at metal ribs root place distance and top, locate distance than being 0.3-0.7.
3. solar airconditioning bronze pan tube according to claim 2 is characterized in that: between adjacent metal ribs in metal ribs root place distance and place, top distance than being 0.6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104556430A CN103471442A (en) | 2013-09-29 | 2013-09-29 | Copper coil pipe for solar air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104556430A CN103471442A (en) | 2013-09-29 | 2013-09-29 | Copper coil pipe for solar air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103471442A true CN103471442A (en) | 2013-12-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013104556430A Pending CN103471442A (en) | 2013-09-29 | 2013-09-29 | Copper coil pipe for solar air conditioner |
Country Status (1)
| Country | Link |
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| CN (1) | CN103471442A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2548108Y (en) * | 2002-06-06 | 2003-04-30 | 河南金龙精密铜管股份有限公司 | Small-diameter thread-inside copper tube for heat exchanger |
| CN2686775Y (en) * | 2004-03-09 | 2005-03-23 | 海亮集团浙江铜加工研究所有限公司 | Inlaid internal thread head |
| CN201173728Y (en) * | 2007-12-14 | 2008-12-31 | 华南理工大学 | Seamless inner thread heat transfer tube |
| CN101498532A (en) * | 2008-02-01 | 2009-08-05 | 金龙精密铜管集团股份有限公司 | Evaporating tube for central air-conditioner |
| CN102121805A (en) * | 2011-04-07 | 2011-07-13 | 金龙精密铜管集团股份有限公司 | Enhanced heat transfer tube used for falling film evaporator |
| CN102679790A (en) * | 2012-06-05 | 2012-09-19 | 金龙精密铜管集团股份有限公司 | Enhanced condensation heat transfer tube |
-
2013
- 2013-09-29 CN CN2013104556430A patent/CN103471442A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2548108Y (en) * | 2002-06-06 | 2003-04-30 | 河南金龙精密铜管股份有限公司 | Small-diameter thread-inside copper tube for heat exchanger |
| CN2686775Y (en) * | 2004-03-09 | 2005-03-23 | 海亮集团浙江铜加工研究所有限公司 | Inlaid internal thread head |
| CN201173728Y (en) * | 2007-12-14 | 2008-12-31 | 华南理工大学 | Seamless inner thread heat transfer tube |
| CN101498532A (en) * | 2008-02-01 | 2009-08-05 | 金龙精密铜管集团股份有限公司 | Evaporating tube for central air-conditioner |
| CN102121805A (en) * | 2011-04-07 | 2011-07-13 | 金龙精密铜管集团股份有限公司 | Enhanced heat transfer tube used for falling film evaporator |
| CN102679790A (en) * | 2012-06-05 | 2012-09-19 | 金龙精密铜管集团股份有限公司 | Enhanced condensation heat transfer tube |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131225 |