CN105674537A - Heat exchanger for air conditioner - Google Patents
Heat exchanger for air conditioner Download PDFInfo
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- CN105674537A CN105674537A CN201410651037.0A CN201410651037A CN105674537A CN 105674537 A CN105674537 A CN 105674537A CN 201410651037 A CN201410651037 A CN 201410651037A CN 105674537 A CN105674537 A CN 105674537A
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Abstract
The invention provides a heat exchanger for an air conditioner. The heat exchanger comprises a first heat exchanger unit, a second heat exchanger unit and a third heat exchanger unit. The two ends of the second heat exchanger unit are movably connected with the first heat exchanger unit and the third heat exchanger unit correspondingly, and the three heat exchanger units are arranged in a U shape. Each heat exchanger unit comprises a heat exchange tube and a fin unit connected to the heat exchange tube in a sleeving mode. The diameter of the inlet end and the diameter of the outlet end of the heat exchange tube of each heat exchanger unit are smaller than the diameter of the middle section of the heat exchange tube, and the diameter of the middle section of the heat exchange tube of the second heat exchanger unit is smaller than the diameter of the middle section of the heat exchange tube of the first heat exchanger unit and the diameter of the middle section of the heat exchange tube of the third heat exchanger unit. Compared with the prior art, the diameters of the heat exchange tubes in the three heat exchanger units are changed, the distance of fins in the windward fin units is larger than the distance of fins in the leeward fin units, and therefore the heat exchange coefficient of the whole heat exchanger is high, and heat exchange performance is good; energy is saved, the environment is protected, adoption of copper and aluminum in the air conditioner is reduced, and the manufacturing cost of the air conditioner is lowered.
Description
Technical field
The present invention relates to field of air conditioning, particularly a kind of heat exchanger of air conditioner.
Background technology
Air-conditioning and air regulate, and refer to and use artificial means, the process that the parameters such as the temperature of building/structures environment air, humidity, air purity, speed are adjusted and are controlled. Air-conditioning generally comprises several major parts and other auxiliary equipment such as low-temperature receiver/heat resource equipment, cold and hot medium distributing system and end equipment, and heat exchanger is then ingredient important in cold and hot medium distributing system. Heat exchanger in air-conditioning is generally made up of copper heat exchanger tube and aluminum fin, and therefore air conditioner industry is to consume the industry that copper, bauxite resource are more.
In order to improve heat exchange efficiency, heat exchanger generally uses the copper aluminum that purity is very high, but in recent years, the raw-material price of copper aluminum constantly rises, and the manufacturing cost making air-conditioning is also more and more higher always. Simultaneously as resource is day by day exhausted, low-carbon economy development is advocated in the whole world, and therefore air conditioner industry also must make the transition and realize the sustainable development of low energy consumption, low stain, low emission.
In prior art, the pipe diameter heat exchanger of air-conditioning generally includes First Heat Exchanger group, the second heat exchanger package and the 3rd heat exchanger package, and each heat exchanger package includes multiple rows of heat exchanger tube and the fin being socketed on heat exchanger tube, and the heat exchanger tube diameter in each heat exchanger package is consistent. It has been investigated that, the diameter of heat exchanger tube is more little, and the heat exchange property of heat exchanger is more good. But for the heat exchanger of pipe with small pipe diameter, along with in heat exchanger tube, mass dryness fraction increases, the coefficient of heat transfer of heat exchanger can present and first increases the trend reduced afterwards, affects the heat exchange property of heat exchanger. Therefore, how to improve the coefficient of heat transfer of heat exchanger, and then improve the heat exchange efficiency of heat exchanger and energy-conserving and environment-protective, be those skilled in the art's important technological problems of needing to solve.
Summary of the invention
For the problems referred to above, the invention provides a kind of heat exchanger of air conditioner, the coefficient of heat transfer of this heat exchanger is high, and heat exchange property is excellent, energy-conserving and environment-protective, reduces the use in air-conditioning of the copper aluminum, reduces air-conditioning manufacturing cost.
The technical solution used in the present invention is:
A kind of heat exchanger of air conditioner, including: First Heat Exchanger group, the second heat exchanger package and the 3rd heat exchanger package, the both ends of the second heat exchanger package are flexibly connected with First Heat Exchanger group and the 3rd heat exchanger package, and three is arranged in " U " type, each heat exchanger package includes heat exchanger tube and is socketed on heat exchanger tube fin unit, in each heat exchanger package, the arrival end of heat exchanger tube and the diameter of the port of export are less than the diameter of its interlude, and the diameter of the heat exchanger tube interlude in the second heat exchanger package is less than the diameter of heat exchanger tube interlude in First Heat Exchanger group and the 3rd heat exchanger package.
Preferably, the angle of the second heat exchanger package and First Heat Exchanger group is 95 ° ~ 120 °, and the angle of the second heat exchanger package and the 3rd heat exchanger package is 95 ° ~ 120 °.
Preferably, in First Heat Exchanger group heat exchanger tube interlude diameter and in the 3rd heat exchanger package the diameter of heat exchanger tube interlude consistent, be so easy in heat exchanger cold-producing medium flowing in heat exchanger tube, improve the heat exchange property of heat exchanger.
It is highly preferred that in First Heat Exchanger group heat exchanger tube interlude diameter and in the 3rd heat exchanger package the diameter of heat exchanger tube interlude be all 7cm.
It is highly preferred that the diameter of heat exchanger tube interlude is 5cm in the second heat exchanger package.
Preferably, in each heat exchanger package, heat exchange tube inlet end is consistent with the diameter of the port of export.
It is highly preferred that the diameter of heat exchange tube inlet end and the port of export is 3.5cm in each heat exchanger package.
Preferably, fin unit in each heat exchanger package includes fin unit and leeward fin unit windward, fin unit and leeward fin unit are respectively at the both sides of heat exchanger tube windward, windward in fin unit the spacing of fin more than the spacing of leeward fin unit, so when operation of air conditioner, wind first passes through the fin unit windward that spacing is big, then through closely spaced leeward fin unit, make heat exchanger heat exchange uniform, improve the overall heat exchange efficiency of heat exchanger.
Compared with prior art, the present invention provides a kind of heat exchanger of air conditioner, this heat exchanger is by changing the heat exchanger tube diameter in three groups of heat exchangers, and make the arrival end of every heat exchanger tube and the diameter of the port of export diameter less than its interlude, simultaneously by the spacing being smaller than leeward fin unit of fin in fin unit windward in the fin unit of heat exchanger package, the coefficient of heat transfer making whole heat exchanger is high, heat exchange property is excellent, energy-conserving and environment-protective, reduce the use in air-conditioning of the copper aluminum, reducing air-conditioning manufacturing cost, therefore application prospect is very wide.
Accompanying drawing explanation
Fig. 1 is the structure chart of a kind of heat exchanger of air conditioner provided by the invention;
Fig. 2 is the schematic diagram of the second heat exchanger package in a kind of heat exchanger of air conditioner provided by the invention;
Fig. 3 is the top view of heat exchanger tube and fin in a kind of heat exchanger of air conditioner provided by the invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is elaborated.
Fig. 1 to Fig. 3 is the preferred implementation of a kind of heat exchanger of air conditioner provided by the invention. As shown in Figure 1 to Figure 3, this one heat exchanger of air conditioner includes First Heat Exchanger group the 10, second heat exchanger package 20 and the 3rd heat exchanger package 30, three is arranged in " U " type, second heat exchanger package 20 is between First Heat Exchanger group 10 and the 3rd heat exchanger package 30, and First Heat Exchanger group 10 installs the side of wall near air-conditioning. Second heat exchanger package 20 is flexibly connected with First Heat Exchanger group 10 and the 3rd heat exchanger package 30, the angle α of the second heat exchanger package and First Heat Exchanger group is 95 ° ~ 120 °, the angle β of the second heat exchanger package and the 3rd heat exchanger package is 95 ° ~ 120 °, along with the position angle between startup scalable the second heat exchanger package 20 and First Heat Exchanger group 10 and the 3rd heat exchanger package 30 of air-conditioning. The structure of three heat exchanger package in heat exchanger is identical, and each heat exchanger package all includes heat exchanger tube and is socketed on heat exchanger tube fin unit. Each heat exchanger tube includes the diameter of arrival end, the port of export and interlude, arrival end and the port of export and is both less than the diameter of interlude, is so easy to improve heat exchanger heat exchange efficiency.
It is to be noted, the arrival end of heat exchanger tube refers to the refrigerant inlet originating in heat exchanger tube the one section of pipeline extended to heat exchanger tube middle part, the port of export refers to the refrigerant outlet originating in heat exchanger tube the one section of pipeline extended to heat exchanger tube middle part, and interlude then refers to a part of pipeline extended from arrival end to the port of export.The diameter of arrival end and the port of export is reduced by the present invention, increase the flow velocity of tube fluid, improve the two-part coefficient of heat transfer, thus improving the heat exchange property of arrival end and the port of export, and the diameter that interlude is bigger, heat exchanger internal drag can being reduced, improving the heat exchange amount of specific discharge in the unit interval, thus improving the heat exchange property of heat exchanger.
As shown in Figures 1 to 3, First Heat Exchanger group 10 includes the first heat exchanger tube 11 and the first fin unit 12, first heat exchanger tube 11 has the first heat exchange tube inlet end 111, the first heat exchanger tube port of export 112 and the first heat exchanger tube interlude 113, the diameter of the first heat exchange tube inlet end 111 and the first heat exchanger tube port of export 112 is both less than the diameter of the first heat exchanger tube interlude 113, and the diameter of the diameter of the first heat exchange tube inlet end 111 and the first heat exchanger tube port of export 112 is consistent; Second heat exchanger package 20 includes the second heat exchanger tube 21 and the second fin unit 22, second heat exchanger tube 21 has the second heat exchange tube inlet end 211, the second heat exchanger tube port of export 212 and the second heat exchanger tube interlude 213, the diameter of the second heat exchange tube inlet end 211 and the second heat exchanger tube port of export 212 is both less than the diameter of the second heat exchanger tube interlude 213, and the diameter of the diameter of the second heat exchange tube inlet end 211 and the second heat exchanger tube port of export 212 is consistent; 3rd heat exchanger package 30 includes the 3rd heat exchanger tube 31 and the 3rd fin unit 32,3rd heat exchanger tube 31 has the 3rd heat exchange tube inlet end the 311, the 3rd the heat exchanger tube port of export 312 and the 3rd heat exchanger tube interlude 313, the diameter of the 3rd heat exchange tube inlet end 311 and the 3rd heat exchanger tube port of export 312 is both less than the diameter of the 3rd heat exchanger tube interlude 313, and the diameter of the diameter of the 3rd heat exchange tube inlet end 311 and the 3rd heat exchanger tube port of export 312 is consistent.
Additionally, in second heat exchanger tube 21 of the second heat exchanger 20, the diameter of the second heat exchanger tube interlude 213 is less than the diameter of the first heat exchanger tube interlude 113 and the 3rd heat exchanger tube interlude 313, so save the raw-material use of copper aluminum, improve the heat exchange efficiency of heat exchanger simultaneously. The diameter of the first heat exchanger tube interlude 113 and the diameter of the 3rd heat exchanger tube interlude 313 are consistent, are so easy to the circulation of heat exchanger inner refrigerant, improve heat exchange efficiency, simultaneously facilitate the whole heat exchanger of processing. Simultaneously, heat exchanger provided by the invention, the stream of cold-producing medium is divided into uniform several branch road, avoid cold-producing medium defect of just evaporation before outlet, and cold-producing medium shunting is uniformly, also the heat exchange efficiency making whole heat exchanger improves, and is illustrated in figure 2 in heat exchanger provided by the invention in second heat exchanger 20 cold-producing medium flow schematic diagram in the second heat exchange tube.
Unlike the prior art, in the present invention, the diameter of the first heat exchanger tube interlude 113 and the diameter of the 3rd heat exchanger tube interlude 313 are all 7cm, the diameter of the second heat exchanger tube interlude 213 is 5cm, in each heat exchanger package, the diameter of heat exchange tube inlet end and the port of export is 3.5cm simultaneously, and the heat exchange efficiency of so whole heat exchanger improves.
Each heat exchanger package all includes fin unit (12,22,32), fin unit 12(22 in each heat exchanger package, 32) all include fin unit 100 and leeward fin unit 200 windward, windward fin unit 100 and leeward fin unit 200 be respectively at heat exchanger tube 11(21,31) both sides, in fin unit 100, spacing of fin is L windward1, in leeward fin unit 200, the spacing of fin of fin is L2, the spacing L of fin in fin unit 100 windward1More than the spacing L of fin in leeward fin unit 2002, so when operation of air conditioner, wind first passes through fin unit 100 windward that spacing is big, then through closely spaced leeward fin unit 200, makes heat exchanger heat exchange uniform, improves the overall heat exchange efficiency of heat exchanger.
In sum, technical scheme sufficiently effective can realize foregoing invention purpose, and the structure of the present invention and principle of work and power all verified in an embodiment fully, intended effect and purpose can be reached, under the premise without departing substantially from principles of the invention and essence, it is possible to inventive embodiment is made various changes or modifications. Therefore, the present invention includes all replacement contents being previously mentioned in scope in patent claim, any equivalence change made in the present patent application the scope of the claims, all belongs within the scope of the claims of this case application.
Claims (8)
1. a heat exchanger of air conditioner, it is characterized in that, including: First Heat Exchanger group, second heat exchanger package and the 3rd heat exchanger package, the both ends of the second heat exchanger package are flexibly connected with First Heat Exchanger group and the 3rd heat exchanger package, and three is arranged in " U " type, each heat exchanger package includes heat exchanger tube and is socketed on heat exchanger tube fin unit, in each heat exchanger package, the arrival end of heat exchanger tube and the diameter of the port of export are less than the diameter of its interlude, the diameter of the heat exchanger tube interlude in the second heat exchanger package is less than the diameter of heat exchanger tube interlude in First Heat Exchanger group and the 3rd heat exchanger package.
2. a kind of heat exchanger of air conditioner as claimed in claim 1, it is characterised in that: the angle of the second heat exchanger package and First Heat Exchanger group is 95 ° ~ 120 °, and the angle of the second heat exchanger package and the 3rd heat exchanger package is 95 ° ~ 120 °.
3. heat exchanger of air conditioner as claimed in claim 1 a kind of, it is characterised in that: in First Heat Exchanger group heat exchanger tube interlude diameter and in the 3rd heat exchanger package the diameter of heat exchanger tube interlude consistent.
4. heat exchanger of air conditioner as claimed in claim 3 a kind of, it is characterised in that: in First Heat Exchanger group heat exchanger tube interlude diameter and in the 3rd heat exchanger package the diameter of heat exchanger tube interlude be all 7cm.
5. a kind of heat exchanger of air conditioner as claimed in claim 3, it is characterised in that: in the second heat exchanger package, the diameter of heat exchanger tube interlude is 5cm.
6. a kind of heat exchanger of air conditioner as claimed in claim 3, it is characterised in that: in each heat exchanger package, heat exchange tube inlet end is consistent with the diameter of the port of export.
7. a kind of heat exchanger of air conditioner as claimed in claim 6, it is characterised in that: in each heat exchanger package, the diameter of heat exchange tube inlet end and the port of export is 3.5cm.
8. a kind of heat exchanger of air conditioner as claimed in claim 1, it is characterized in that: the fin unit in each heat exchanger package includes fin unit and leeward fin unit windward, fin unit and leeward fin unit are respectively at the both sides of heat exchanger tube windward, windward in fin unit spacing of fin more than spacing of fin in leeward fin unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410651037.0A CN105674537A (en) | 2014-11-17 | 2014-11-17 | Heat exchanger for air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410651037.0A CN105674537A (en) | 2014-11-17 | 2014-11-17 | Heat exchanger for air conditioner |
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| Publication Number | Publication Date |
|---|---|
| CN105674537A true CN105674537A (en) | 2016-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410651037.0A Pending CN105674537A (en) | 2014-11-17 | 2014-11-17 | Heat exchanger for air conditioner |
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| CN (1) | CN105674537A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019205621A1 (en) * | 2018-04-24 | 2019-10-31 | 青岛海尔空调器有限总公司 | Heat exchanger and air conditioner |
-
2014
- 2014-11-17 CN CN201410651037.0A patent/CN105674537A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019205621A1 (en) * | 2018-04-24 | 2019-10-31 | 青岛海尔空调器有限总公司 | Heat exchanger and air conditioner |
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Application publication date: 20160615 |