CN2605537Y - Fined heat exchanger for air-cooled heat pump - Google Patents
Fined heat exchanger for air-cooled heat pump Download PDFInfo
- Publication number
- CN2605537Y CN2605537Y CN 03236535 CN03236535U CN2605537Y CN 2605537 Y CN2605537 Y CN 2605537Y CN 03236535 CN03236535 CN 03236535 CN 03236535 U CN03236535 U CN 03236535U CN 2605537 Y CN2605537 Y CN 2605537Y
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- China
- Prior art keywords
- heat exchanger
- heat
- tube
- finned
- exchanger tube
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Abstract
The utility model discloses a finned heat exchanger, which is provided with a plurality of tube sides which are formed by a plurality of heat-exchange tubes for the flow of refrigerant, the inlet and outlet of each tube side are joined and connected with a liquid separator, wherein the length of each heat-exchange tube is different. In general, the upper heat-exchange tubes are longer, and the lower heat-exchange tubes are shorter. The finned heat exchanger can improve the phenomenon that different heat-exchange tubes of the heat exchanger have uneven heat exchange caused by non-uniform distribution of wind speed by changing the length distribution of different heat-exchange tubes of the finned heat exchanger, and the heat exchange effect for the finned heat exchanger can be enhanced further. In addition, the frost distribution status on the fin in heating operation in winter can be improved by changing the length distribution of heat-exchange tubes of the finned heat exchanger, so the distribution for the frost layer of the fin is more even, and the flow of the defrosting water after defrosting is smoother.
Description
Technical fieldThe utility model provides a kind of heat exchanger, especially a kind of air-cooled heat pump finned heat exchanger.
Background technology
At present, in the prior art, the wind heat exchanger that uses in the Air-Cooled Heat Pump Unit generally mostly is finned tube heat exchanger, and finned tube heat exchanger is overlapping sheet metal or making behind metal tape on the plain tube, because the effect of fin has improved the heat exchange effect in the evaporimeter outside; During the Air-Cooled Heat Pump Unit heating operation, finned heat exchanger is as evaporimeter, enter evaporimeter from the cold-producing medium in expansion valve exit from an end of pipe, the heat absorption vaporization, and when arriving the other end of pipe, all gasify, in the evaporimeter that the multitube road is formed, in order to make full use of the heat transfer area of every pipeline, generally be cold-producing medium to be assigned in each bar pipeline uniformly go, the method of Cai Yonging is the pipe range of even every the branch road that distributes for this reason, make every passage that identical flow resistance be arranged, cold-producing medium enters in each bar pipeline through knockout; But is unequal because wind speed can cause the coefficient of heat transfer along the skewness of heat exchanger fin along heat exchanger, so the heat exchanger layout pattern of this isometric each branch road of distribution causes the heat exchange inequality of each branch road easily, and cause the uneven distribution of frosting layer thickness in the winter time during heating operation.
Summary of the invention
The purpose of this utility model is to improve deficiency of the prior art, provide a kind of and can avoid because each heat exchanger tube heat exchange inequality of the wind heat exchanger that different distributions caused of wind speed, and the air-cooled heat pump finned heat exchanger of the phenomenon of frosting inequality when solving the heating operation that causes thus.
The purpose of this utility model is achieved in that the finned heat exchanger that the utility model provides has some heat exchanger tubes, form some tube sides that supply cold-producing medium to flow through, the import and export of each described heat exchanger tube converge the connection knockout, and the length of described each heat exchanger tube is inequality.
The heat exchanger tube that the utility model provides can design the length of tube side of the heat exchanger tube of each branch road of heat exchanger according to wind speed along the different distributions of heat exchanger fin, thereby make the big branch road tube side length that just coefficient of heat transfer is big of wind speed short, like this, pipe resistance in this tube side is little, then refrigerant flow is big, and the tube side length of the little branch road of the little coefficient of heat transfer just of wind speed is longer, like this, the resistance of pipeline is big in this tube side, then refrigerant flow is smaller in this tube side, can make each branch road heat exchange of whole finned heat exchanger even like this, all can obtain evaporation after cold-producing medium is flow through fully in each root heat exchanger tube, thereby farthest bring into play the heat exchange effect of finned heat exchanger.
Under the general situation, heat exchanger tube on the finned heat exchanger is arranged from top to bottom, and the regularity of distribution of the wind speed of the heat exchanger of flowing through is that wind speed reduces gradually from top to bottom, as shown in Figure 1, adapt to this situation, the length of heat exchanger tube also is that the length of heat exchanger tube up is shorter in this finned heat exchanger, below the length of heat exchanger tube longer.
Strictly speaking, for the heat exchange that makes each bar heat exchanger tube of whole heat exchanger even, the length of each heat exchanger tube all should be to calculate according to wind speed profile, the length of each heat exchanger tube should gradually change from top to bottom, but in order to simplify production technology, the finned heat exchanger that the utility model is provided is convenient to make, assembling and use, in the reality wind speed profile mean value of calculating the upper and lower according to the roughly distribution situation of wind speed, according to this value the heat exchanger tube of whole heat exchanger is divided into some groups, the bottom grouping is longer because of little its heat exchanger tube of wind speed, and the top grouping is short because of the big heat exchanger tube of wind speed.Generally can be divided into two groups up and down, the bottom is one group, and its heat exchanger tube is longer, and top is another group, and its heat exchanger tube is shorter, and in each group, the length of each heat exchanger tube is identical.
When adjusting the length of heat exchanger tube, simpler structure is the number of passes that increases bottom grouping heat exchanger tube, makes cold-producing medium pass through turning back of more number of times in this heat exchanger tube, and the fluid resistance in this pipeline is bigger, and then refrigerant flow wherein will be smaller; And the top wind speed is big, and the heat exchanger tube at this place is just only established a journey or established less number of passes, makes heat exchanger tube short, and the fluid resistance in this pipeline is then less and refrigerant flow wherein is just big.
The finned heat exchanger that the utility model provides distributes by the pipe range that changes finned heat exchanger various heat exchange pipe can improve the phenomenon of the heat exchanger various heat exchange pipe heat exchange inequality that is caused owing to the wind speed profile inequality, thereby further strengthens the heat exchange effect of finned heat exchanger.In addition, frosting in the time of can improving winter heating's operation by the heat exchanger tube distribution of lengths of improving finned heat exchanger on the fin distributes, the frost layer of fin is more evenly distributed, frosting serious situation on the heat exchanger tube of bottom can not appear especially, thus make each heat exchanger tube on the heat exchanger after defrosting defrost water flow more smooth and easy.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is the wind speed size distribution schematic diagram along finned heat exchanger;
The structural representation of the finned heat exchanger that Fig. 2 provides for the utility model;
The left view of the finned heat exchanger that Fig. 3 provides for the utility model;
The right view of the finned heat exchanger that Fig. 4 provides for the utility model.
The specific embodiment
As shown in Figure 2, the finned heat exchanger 1 that the utility model provides has some heat exchanger tubes 2 and forms some pipelines that supply cold-producing medium to flow through, the import and export of each heat exchanger tube 2 converge and connect knockout 3, each heat exchanger tube 3 locates to be provided with the elbow of turning back at support 3 ', constitute different numbers of passes, the tube side that forms of each heat exchanger tube 2 is divided into the grouping of two different numbers of passes up and down, is the number of passes of quadruple pass at last heat exchanger tube, under pipe be the number of passes of six journeys.Under the number of passes of such pipe up and down, and the length of corresponding every Cheng Guanzi, just can make the cold-producing medium evaporation fully basically in this pipe in each heat exchanger tube, thus, make frost-free or few frosting on the fin of heat exchanger tube.
Show at the quadruple pass of the top of the both sides of heat exchanger grouping heat exchanger tube as Fig. 3 and 4 and to turn back and the arrangement of bottom grouping heat exchanger tube six Cheng Zhezhuan.
Claims (4)
1, a kind of finned heat exchanger has some heat exchanger tubes and forms some tube sides of flowing through for cold-producing mediums, and the import and export of each described heat exchanger tube converge and are connected on the knockout, and it is characterized in that: the length of described each heat exchanger tube is inequality.
2, finned heat exchanger according to claim 1 is characterized in that: the length of described heat exchanger tube up is shorter, below the length of heat exchanger tube longer.
3, finned heat exchanger according to claim 2 is characterized in that: each heat exchanger tube of whole heat exchanger is divided into two groups, and the bottom is one group, and its heat exchanger tube is longer, and top is another group, and its heat exchanger tube is shorter, and in each group, the length of each heat exchanger tube is identical.
4, finned heat exchanger according to claim 3 is characterized in that: each heat exchanger tube that the bottom is a group is established more number of passes; And each heat exchanger tube on one group on top is established less number of passes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03236535 CN2605537Y (en) | 2003-01-24 | 2003-01-24 | Fined heat exchanger for air-cooled heat pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03236535 CN2605537Y (en) | 2003-01-24 | 2003-01-24 | Fined heat exchanger for air-cooled heat pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2605537Y true CN2605537Y (en) | 2004-03-03 |
Family
ID=34166829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03236535 Expired - Lifetime CN2605537Y (en) | 2003-01-24 | 2003-01-24 | Fined heat exchanger for air-cooled heat pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2605537Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104596161A (en) * | 2014-12-12 | 2015-05-06 | 中国北车集团大连机车研究所有限公司 | Unequal-length circuit structure of condenser for locomotive air conditioner |
| CN109855332A (en) * | 2017-11-30 | 2019-06-07 | 杭州三花家电热管理系统有限公司 | Heat-exchanging component and heat-exchange system |
| CN115127257A (en) * | 2022-06-30 | 2022-09-30 | 山东和同信息科技股份有限公司 | Non-uniform arrangement structure and method for L-shaped finned tube heat exchanger of air source heat pump |
-
2003
- 2003-01-24 CN CN 03236535 patent/CN2605537Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104596161A (en) * | 2014-12-12 | 2015-05-06 | 中国北车集团大连机车研究所有限公司 | Unequal-length circuit structure of condenser for locomotive air conditioner |
| CN109855332A (en) * | 2017-11-30 | 2019-06-07 | 杭州三花家电热管理系统有限公司 | Heat-exchanging component and heat-exchange system |
| CN115127257A (en) * | 2022-06-30 | 2022-09-30 | 山东和同信息科技股份有限公司 | Non-uniform arrangement structure and method for L-shaped finned tube heat exchanger of air source heat pump |
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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: TONGFANG ARTIFICIAL ENVIRONMENT CO., LTD.; PATENT Free format text: FORMER OWNER: TONGFANG ARTIFICIAL ENVIRONMENT CO., LTD. Effective date: 20080801 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C56 | Change in the name or address of the patentee |
Owner name: TONGFANG ARTIFICIAL ENVIRONMENT CO., LTD. Free format text: FORMER NAME OR ADDRESS: QINGHUA TONGFANG ARTIFICIAL ENVIRONMENT CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: Beijing city Haidian District Wangzhuang Road No. 1 building, Tsinghua Tongfang technology B 21 - 22, zip code: 100083 Patentee after: TsingHua TongFang Artificial Environment CO.,LTD Address before: Qinghua Tongfang artificial environment Co., Ltd., Miyun Miyun Industrial Development Zone, Beijing 101500, China Patentee before: Tsinghua Tongfang Artificial Environment Co.,Ltd. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20080801 Address after: Beijing city Haidian District Wangzhuang Road No. 1 building, Tsinghua Tongfang technology B 21 - 22, zip code: 100083 Co-patentee after: WUXI TONGFANG ARTIFICIAL ENVIRONMENT Co.,Ltd. Patentee after: TsingHua TongFang Artificial Environment CO.,LTD Address before: Beijing city Haidian District Wangzhuang Road No. 1 building, Tsinghua Tongfang technology B 21 - 22, zip code: 100083 Patentee before: TsingHua TongFang Artificial Environment CO.,LTD |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130124 Granted publication date: 20040303 |