CN2572325Y - Heat-exchanging pipe for condenser - Google Patents
Heat-exchanging pipe for condenser Download PDFInfo
- Publication number
- CN2572325Y CN2572325Y CN 02264794 CN02264794U CN2572325Y CN 2572325 Y CN2572325 Y CN 2572325Y CN 02264794 CN02264794 CN 02264794 CN 02264794 U CN02264794 U CN 02264794U CN 2572325 Y CN2572325 Y CN 2572325Y
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- CN
- China
- Prior art keywords
- heat
- fin
- pipe
- condenser
- wall
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- Ceased
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Abstract
The utility model relates to a heat-exchanging pipe for a condenser, particularly an improved structure of a heat-exchanging pipe for a condenser in a cooling water machine unit of a central air-conditioning system. The heat-exchanging pipe for a condenser comprises a pipe body and an outer fin which is formed on the outer wall of the pipe body, grooves are arranged on the outer fin at intervals, and a tooth stand is formed between two adjacent grooves. In addition, the outer fin is in a saw tooth shape by the grooves and the tooth stand, and an inner fin is formed on the inner wall of the pipe body. The smooth fin top part and the lateral part of the original outer fin are changed into the saw tooth shape. When condensed fluid flows along the top part of the outer fin, liquid film becomes thin because of the cutting action of the grooves, and the surface tension is changed. Before the condensed fluid flows down the bottom of the pipe, the condensed fluid starts dropping, so the utility model has the effect of fast dropping. In addition, the thickening of the liquid film is avoided, the thermal resistance is reduced, and then the heat exchange between the condensed water and the pipe wall can be fully achieved. Because the inner fin is formed on the wall body of the inner wall of the pipe body, the utility model has the effect of increasing the heat exchange coefficient.
Description
The utility model discloses the heat-exchange tube that a kind of condenser is used, particularly a kind of improvement of the heat-exchange tube structure that the condenser in the central air conditioner system handpiece Water Chilling Units is used.
Refrigerant vapour condensing in condenser is generally film condensation, and the liquid that is condensed into by refrigerant vapour forms the liquid film of one deck continuous-flow on the surface of pipe.After liquid film formed, condensing of steam only carried out on the liquid film surface.The latent heat of emitting when condensing must just can be passed to the surface of pipe by liquid film, and this surface claims cold wall again.Liquid film is thick more, and thermal resistance is big more, and the heat-transfer effect sidewalk is poor.As seen, have only the drippage of accelerating condensate liquid, just can avoid increasing the thickness of liquid film.That is to say that the heating surface of condenser pipe (being outer surface) must constitute the structure that is beneficial to the condensate liquid dripple.And the heat-exchange tube that existing condenser is used, the top of its fin, sidepiece are shiny surface, so liquid film easily flows to the pipe bottom along two fin gaps and is detained, just drip after causing the liquid film thickening, and as described above, liquid film is thick more, and thermal resistance is big more, and heat-transfer effect is poor more; Also have, the inwall of pipe also is smooth, and like this, in the time of in the cold water flowing pipe, the type of flow shows as laminar flow, and like this, condensed water can not carry out abundant heat exchange with tube wall, thereby also can influence condensation effect.
The purpose of this utility model be to provide a kind of can be beneficial to the condensate liquid dripple, condensed water and tube wall can carry out the heat-exchange tube that condenser abundant heat exchange, that improve condensation effect and intraductal heat exchange coefficient is used.
The purpose of this utility model reaches like this, the heat-exchange tube that a kind of condenser is used, comprise body 1 and the outer fin 4 that on body 1 outer wall, forms, be provided with groove 3 between on the described outer fin 4, be formed with tooth platform 2 between the two adjacent grooves 3, outer fin 4 constituted zigzags by groove 3 and tooth platform 2; The inwall of described body 1 is formed with inner fin 5.
The utility model is owing to done above-mentioned improvement, become original outer fin 4 smooth wing top, wing sidepieces and be zigzag, when condensate liquid flows along outer fin 4 tops, because the dissection of groove 3 makes thinning of liquid film, surface tension changes, condensate liquid promptly began drippage before flowing to the pipe bottom, therefore have the effect of dripple, and because of having avoided liquid film to thicken, thermal resistance reduces, and makes condensed water and tube wall can fully carry out heat exchange; Owing on the inwall wall body of body 1, be formed with inner fin 5, have the effect that improves the intraductal heat exchange coefficient.
Below in conjunction with accompanying drawing the utility model is further described below.
Fig. 1 is the utility model structure chart.
Fig. 2 is the B-B partial sectional view of the utility model Fig. 1.
Fig. 3 is the utility model schematic perspective view.
Fig. 4 is an application implementation illustration of the present utility model.
Groove of the present utility model 8 is for having the cannelure of certain angle, forms tooth platform 2 between the two adjacent cannelures, thereby makes outer fin 4 constitute zigzag by cannelure and mutually combining of tooth platform 2.
The degree of depth of cannelure of the present utility model is 0.2～0.4mm, the angle [alpha] of cannelure and body 1 center line ' and be 40～50 °, the slot pitch of cannelure is 0.5～0.6mm.
Inner fin 5 of the present utility model is shape in the shape of a spiral, with the center line pitch angle alpha will of body 1 be 40～48 °.
The height of inner fin 5 of the present utility model is 0.3～0.4mm.
The utility model is to embody its heat exchange like this, several the utility model are inserted solid on the condenser partition wall 7 of condenser 6, the two ends mouth of pipe of every body 1 communicates with the condensation water cavity of being separated by condenser partition wall 7 12,13, and the mid portion of body 1 is positioned at heat exchanging chamber 14.Condensed water flows into condensation water cavity 12 from the water inlet 8 of condenser 6, cavity volume through each body 1 flow to condensation water cavity 13, flow out from the delivery port 9 of condenser 6, by the chamber wall of body 1, i.e. the effect of the spiral helicine interior wing 5 on the inwall is therefore when condensed water enters body 1 cavity volume with certain speed, the type of flow is just changed into turbulent flow, changing under this turbulent condition, condensed water can be fully and the tube wall heat exchange, embodies higher intraductal heat exchange coefficient by this; Meanwhile, the heat exchanging chamber 14 that the cold-producing medium of high temperature steam state is introduced condensers 6 from the refrigerant inlet 10 of condenser 6 sidepieces carries out heat exchange with each body 1, become low temperature liquid after, from refrigerant outlet 11, flow out.Because the fin 4 on the outer wall of body 1 is aforesaid zigzag, and groove 3 is a cannelure, the cannelure degree of depth is 0.2～0.4mm, slot pitch is 0.5～0.6mm, the height of outer fin 4 is 0.6～0.95mm, therefore, when condensate liquid flows along fin 4 tops, groove 3 produces dissection to it, not only make the thinning of condensate liquid liquid film and reduce thermal resistance, and surface tension is effectively changed, can guarantee that condensate liquid promptly dripped before flowing to the pipe bottom, help quickening dropleting speed, condensed water in the realization body 1 and the cold-producing medium outside the body 1 fully carry out heat exchange.As seen the heat-exchange tube that technical solutions of the utility model limited pass the imperial examinations at the provincial level with prior art and common heat-exchange tube compare, the outer coefficient of heat transfer, the integrated heat transfer coefficient of body 1 all has significantly outstanding effect; Equally, the coefficient of heat transfer, the integrated heat transfer coefficient in the body 1 has significant effect too.
Claims (6)
1, the heat-exchange tube used of a kind of condenser, comprise body (1) and the outer fin (4) that on body (1) outer wall, forms, it is characterized in that described outer fin (4) is provided with groove (3) between going up, be formed with tooth platform (2) between the two adjacent grooves (3), outer fin (4) constituted zigzag by groove (3) and tooth platform (2); The inwall of described body (1) is formed with inner fin (5).
2, the heat-exchange tube used of condenser according to claim 1 is characterized in that groove (3) is for having the cannelure of certain angle.
3, the heat-exchange tube used of condenser according to claim 2, the degree of depth that it is characterized in that cannelure is 0.2～0.4mm, the angle [alpha] of cannelure and body 1 center line ' be 40～50 °, the slot pitch of cannelure is 0.5～0.6mm.
4, the heat-exchange tube used of condenser according to claim 1 is characterized in that outer fin (4) highly is 0.6～0.95mm.
5, the heat-exchange tube used of condenser according to claim 1 is characterized in that inner fin (5) shape in the shape of a spiral, with the center line pitch angle alpha will of body (1) be 40～48 °.
6, the heat-exchange tube used of condenser according to claim 1 or 5, the height that it is characterized in that inner fin (5) is 0.3～0.4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02264794 CN2572325Y (en) | 2002-09-28 | 2002-09-28 | Heat-exchanging pipe for condenser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02264794 CN2572325Y (en) | 2002-09-28 | 2002-09-28 | Heat-exchanging pipe for condenser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2572325Y true CN2572325Y (en) | 2003-09-10 |
Family
ID=33730934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02264794 Ceased CN2572325Y (en) | 2002-09-28 | 2002-09-28 | Heat-exchanging pipe for condenser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2572325Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100437011C (en) * | 2005-12-13 | 2008-11-26 | 金龙精密铜管集团股份有限公司 | Flooded copper-evaporating heat-exchanging pipe for electric refrigerator set |
| CN100458346C (en) * | 2005-12-16 | 2009-02-04 | 金龙精密铜管集团股份有限公司 | Copper evaporating heat-exchanging pipe of evaporator for bromine refrigerator set |
| CN101126613B (en) * | 2007-09-12 | 2010-06-02 | 苏州新太铜高效管有限公司 | Heat exchanging tube for condensator |
| CN102538545A (en) * | 2012-01-06 | 2012-07-04 | 烟台恒辉铜业有限公司 | Falling film type evaporation pipe |
| CN106247839A (en) * | 2016-08-15 | 2016-12-21 | 安徽天祥空调科技有限公司 | A kind of air conditioning unit finned radiating tube and manufacture method thereof |
| CN109373797A (en) * | 2018-12-03 | 2019-02-22 | 珠海格力电器股份有限公司 | Heat exchanger tube, heat exchanger and air conditioner |
| CN111765570A (en) * | 2020-07-10 | 2020-10-13 | 金华市小狸新材料科技有限责任公司 | Air conditioner heat pump heat exchange structure with condensate water discharging function |
| CN113685832A (en) * | 2021-08-31 | 2021-11-23 | 重庆三众环保投资顾问有限公司 | Exhaust gas treatment device for coking plant |
-
2002
- 2002-09-28 CN CN 02264794 patent/CN2572325Y/en not_active Ceased
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100437011C (en) * | 2005-12-13 | 2008-11-26 | 金龙精密铜管集团股份有限公司 | Flooded copper-evaporating heat-exchanging pipe for electric refrigerator set |
| CN100458346C (en) * | 2005-12-16 | 2009-02-04 | 金龙精密铜管集团股份有限公司 | Copper evaporating heat-exchanging pipe of evaporator for bromine refrigerator set |
| CN101126613B (en) * | 2007-09-12 | 2010-06-02 | 苏州新太铜高效管有限公司 | Heat exchanging tube for condensator |
| CN102538545A (en) * | 2012-01-06 | 2012-07-04 | 烟台恒辉铜业有限公司 | Falling film type evaporation pipe |
| CN106247839A (en) * | 2016-08-15 | 2016-12-21 | 安徽天祥空调科技有限公司 | A kind of air conditioning unit finned radiating tube and manufacture method thereof |
| CN109373797A (en) * | 2018-12-03 | 2019-02-22 | 珠海格力电器股份有限公司 | Heat exchanger tube, heat exchanger and air conditioner |
| CN111765570A (en) * | 2020-07-10 | 2020-10-13 | 金华市小狸新材料科技有限责任公司 | Air conditioner heat pump heat exchange structure with condensate water discharging function |
| CN111765570B (en) * | 2020-07-10 | 2021-09-14 | 沧州双印空调安装工程有限公司 | Air conditioner heat pump heat exchange structure with condensate water discharging function |
| CN113685832A (en) * | 2021-08-31 | 2021-11-23 | 重庆三众环保投资顾问有限公司 | Exhaust gas treatment device for coking plant |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C35 | Partial or whole invalidation of patent or utility model | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20051129 Decision number of declaring invalidation: 7760 |