CN102721240B - A kind of low-temperature heat pump air conditioner heat-exchange system with icing protection - Google Patents
A kind of low-temperature heat pump air conditioner heat-exchange system with icing protection Download PDFInfo
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- CN102721240B CN102721240B CN201210193682.3A CN201210193682A CN102721240B CN 102721240 B CN102721240 B CN 102721240B CN 201210193682 A CN201210193682 A CN 201210193682A CN 102721240 B CN102721240 B CN 102721240B
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- heat exchanger
- check valve
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- throttle device
- plate type
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- 239000007788 liquid Substances 0.000 claims abstract description 17
- 239000012530 fluid Substances 0.000 claims abstract description 13
- 238000010257 thawing Methods 0.000 claims abstract description 9
- 239000003507 refrigerant Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The present invention is a kind of low-temperature heat pump air conditioner heat-exchange system with icing protection, comprise compressor, cross valve, plate type heat exchanger, gas-liquid separator, finned heat exchanger, first throttle device, the second throttling arrangement, the first check valve, the second check valve, fluid reservoir, filter, anti-swollen ice pipe, two mouths of pipe of cross valve connect compressor and plate type heat exchanger respectively, and its other two mouths of pipe connect gas-liquid separator and finned heat exchanger respectively; Gas-liquid separator connects with compressor, is connected with heat pump branch road and defrosting branch road between plate type heat exchanger and finned heat exchanger; Heat pump branch road comprises the first check valve, fluid reservoir, filter, the first throttle device that connect successively; Defrosting branch road comprises the second throttling arrangement and the second check valve; Anti-swollen ice pipe one end connects with first throttle device, and the other end connects with the second throttling arrangement and filter respectively.The present invention effectively can suppress the generation of frost bottom finned heat exchanger, alleviates its icing rate.
Description
Technical field
The present invention relates to the technical field of low-temperature heat pump air conditioner, refer in particular to a kind of low-temperature heat pump air conditioner heat-exchange system with icing protection.
Background technology
At present, existing low-temperature heat pump air conditioner heat-exchange system does not generally all have icing protection, namely be the anti-frozen structure not having to arrange for preventing from freezing bottom its finned heat exchanger or effectively slowing down its icing rate, its heat exchange efficiency can be reduced like this, wherein, particularly under some severe rugged environments, such as the north that temperature is lower, during existing low-temperature heat pump air conditioner heat-exchange system heating operation, can be had a strong impact on it because freezing bottom its finned heat exchanger and normally use.Therefore, now along with the development of social science and technology, how existing low-temperature heat pump air conditioner heat-exchange system is improved, make it have certain anti-swollen ice function, become researcher's urgent problem.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of reliably reasonable in design, effectively can alleviate the low-temperature heat pump air conditioner heat-exchange system with icing protection of its icing rate.
For achieving the above object, technical scheme provided by the present invention is: a kind of low-temperature heat pump air conditioner heat-exchange system with icing protection, it includes compressor, cross valve, plate type heat exchanger, gas-liquid separator, finned heat exchanger, first throttle device, the second throttling arrangement, the first check valve, the second check valve, fluid reservoir, filter, wherein, two mouths of pipe of described cross valve connect the gas outlet of compressor and the air inlet of plate type heat exchanger respectively, and its two other mouth of pipe connects the air inlet of gas-liquid separator and the gas outlet of finned heat exchanger respectively; The gas outlet of described gas-liquid separator connects with the air inlet of compressor, and meanwhile, the gas outlet of above-mentioned plate type heat exchanger is connected to two branch roads connected with the air inlet of finned heat exchanger, and it is specially heat pump branch road and defrosting branch road; Described heat pump branch road includes the first check valve, fluid reservoir, filter, the first throttle device that the direction along plate type heat exchanger to finned heat exchanger connects successively; Described defrosting branch road includes the second throttling arrangement and the second check valve, the input of described second throttling arrangement connects with the output of filter and the input of first throttle device respectively, its output connects with the input of the first check valve and the gas outlet of plate type heat exchanger respectively, simultaneously, the input of the second check valve connects with the air inlet of finned heat exchanger and the output of first throttle device respectively, and its output connects with the output of the first check valve and the input of fluid reservoir respectively; It also includes correspondence and is located at anti-swollen ice pipe bottom finned heat exchanger, and wherein, one end of described anti-swollen ice pipe connects with the input of first throttle device, and its other end connects with the input of the second throttling arrangement and the output of filter respectively.
Described first throttle device and the second throttling arrangement are choke valve.
The present invention is after have employed such scheme, its great advantage is that the present invention has certain icing protection, this compared to existing technology, the present invention effectively can suppress the generation of frost bottom finned heat exchanger, alleviate its icing rate, thus reach and improve the object of its heat exchange efficiency, equally also can be applicable to more use under severe rugged environment, thus can huge economic benefit be produced.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present invention.
Detailed description of the invention
Below in conjunction with specific embodiment, the invention will be further described.
Shown in accompanying drawing 1, low-temperature heat pump air conditioner heat-exchange system described in the present embodiment, it includes compressor 1, cross valve 2, plate type heat exchanger 3, gas-liquid separator 4, finned heat exchanger 5, first throttle device 6, second throttling arrangement 7, first check valve 8, second check valve 9, fluid reservoir 10, filter 11 and correspondence are located at the anti-swollen ice pipe 14 bottom this finned heat exchanger 5, wherein, two mouths of pipe of cross valve 2 described in the present embodiment connect the gas outlet of compressor 1 and the air inlet of plate type heat exchanger 3 respectively, its two other mouth of pipe connects the air inlet of gas-liquid separator 4 and the gas outlet of finned heat exchanger 5 respectively, the gas outlet of described gas-liquid separator 4 connects with the air inlet of compressor 1, and meanwhile, the gas outlet of above-mentioned plate type heat exchanger 3 is connected to two branch roads connected with the air inlet of finned heat exchanger 5, and it is specially heat pump branch road 12 and defrosting branch road 13, described heat pump branch road 12 includes the first check valve 8, fluid reservoir 10, filter 11, the first throttle device 6 that the direction along plate type heat exchanger 3 to finned heat exchanger 5 connects successively, described defrosting branch road 13 includes the second throttling arrangement 7 and the second check valve 9, the input of described second throttling arrangement 7 connects with the output of filter 11 and the input of first throttle device 6 respectively, its output connects with the input of the first check valve 8 and the gas outlet of plate type heat exchanger 3 respectively, simultaneously, the input of the second check valve 9 connects with the air inlet of finned heat exchanger 5 and the output of first throttle device 6 respectively, and its output connects with the output of the first check valve 8 and the input of fluid reservoir 10 respectively, one end of described anti-swollen ice pipe 14 connects with the input of first throttle device 6, and its other end connects with the input of the second throttling arrangement 7 and the output of filter 11 respectively.In addition, the first throttle device 6 described in the present embodiment and the second throttling arrangement 7 are choke valve.Be below the operation principle description of the above-mentioned low-temperature heat pump air conditioner heat-exchange system of the present embodiment: during defrosting, shown in the dotted arrow in accompanying drawing 1, the refrigerant gas of HTHP is discharged through compressor 1, after after cross valve 2, enter finned heat exchanger 5 defrost, be condensed into cryogenic high pressure liquid, afterwards successively through the second check valve 9, fluid reservoir 10, filter 11, plate type heat exchanger 3 heat exchange is entered after second throttling arrangement 7, form the refrigerant gas of low-temp low-pressure, and then successively by after cross valve 2 and gas-liquid separator 4, finally enter compressor 1 to compress, complete compression cycle, when heating, shown in the solid arrow in accompanying drawing 1, the refrigerant gas of HTHP is discharged through compressor 1, after enter plate type heat exchanger 3 heat exchange through cross valve 2, be condensed into middle temperature highly pressurised liquid, afterwards successively through the first check valve 8, fluid reservoir 10, filter 11, anti-swollen ice pipe 14, enter finned heat exchanger 5 after first throttle device 6 to evaporate, prevent in swollen ice pipe 14 and then by fan 15, hot blast blown out, and after refrigerant liquid heat exchange in finned heat exchanger 5, form the gas of low-temp low-pressure, last successively by cross valve 2, enter compressor 1 after gas-liquid separator 4 to compress, complete compression cycle.In a word, after the above scheme of employing, compared to existing technology, the present invention, by the anti-swollen ice pipe 14 set up, makes it have certain icing protection, effectively can suppress the generation of frost bottom finned heat exchanger 5, alleviate its icing rate, thus reach and improve the object of its heat exchange efficiency, equally also can be applicable to more use under severe rugged environment, thus can huge economic benefit be produced, be worthy to be popularized.
The examples of implementation of the above are only the preferred embodiment of the present invention, not limit practical range of the present invention with this, therefore the change that all shapes according to the present invention, principle are done, all should be encompassed in protection scope of the present invention.
Claims (1)
1. one kind has the low-temperature heat pump air conditioner heat-exchange system of icing protection, it includes compressor (1), cross valve (2), plate type heat exchanger (3), gas-liquid separator (4), finned heat exchanger (5), first throttle device (6), second throttling arrangement (7), first check valve (8), second check valve (9), fluid reservoir (10), filter (11), wherein, two mouths of pipe of described cross valve (2) connect the gas outlet of compressor (1) and the air inlet of plate type heat exchanger (3) respectively, its two other mouth of pipe connects the air inlet of gas-liquid separator (4) and the gas outlet of finned heat exchanger (5) respectively, the gas outlet of described gas-liquid separator (4) connects with the air inlet of compressor (1), simultaneously, the gas outlet of above-mentioned plate type heat exchanger (3) is connected to two branch roads connected with the air inlet of finned heat exchanger (5), and it is specially heat pump branch road (12) and defrosting branch road (13), described heat pump branch road (12) includes the first check valve (8), fluid reservoir (10), filter (11), the first throttle device (6) that the direction along plate type heat exchanger (3) to finned heat exchanger (5) connects successively, described defrosting branch road (13) includes the second throttling arrangement (7) and the second check valve (9), the input of described second throttling arrangement (7) connects with the output of filter (11) and the input of first throttle device (6) respectively, its output connects with the input of the first check valve (8) and the gas outlet of plate type heat exchanger (3) respectively, simultaneously, the input of the second check valve (9) connects with the air inlet of finned heat exchanger (5) and the output of first throttle device (6) respectively, its output connects with the output of the first check valve (8) and the input of fluid reservoir (10) respectively, it is characterized in that: it also includes the anti-swollen ice pipe (14) that correspondence is located at finned heat exchanger (5) bottom, wherein, one end of described anti-swollen ice pipe (14) connects with the input of first throttle device (6), its other end connects with the input of the second throttling arrangement (7) and the output of filter (11) respectively, and described first throttle device (6) and the second throttling arrangement (7) are choke valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210193682.3A CN102721240B (en) | 2012-06-13 | 2012-06-13 | A kind of low-temperature heat pump air conditioner heat-exchange system with icing protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210193682.3A CN102721240B (en) | 2012-06-13 | 2012-06-13 | A kind of low-temperature heat pump air conditioner heat-exchange system with icing protection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102721240A CN102721240A (en) | 2012-10-10 |
| CN102721240B true CN102721240B (en) | 2016-02-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210193682.3A Expired - Fee Related CN102721240B (en) | 2012-06-13 | 2012-06-13 | A kind of low-temperature heat pump air conditioner heat-exchange system with icing protection |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105157267A (en) * | 2015-10-21 | 2015-12-16 | 苏州医电神空调设备工程有限公司 | Multifunctional four-pipe direct evaporation system |
| CN106705494A (en) * | 2017-03-08 | 2017-05-24 | 广东美格动力新能源有限公司 | Air source heat pump energy conservation system with function of preventing air side heat exchanger from freezing |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101398234A (en) * | 2007-09-28 | 2009-04-01 | 德州亚太集团有限公司 | Low-temperature air-cooling heat pump unit |
| CN101806519A (en) * | 2010-04-19 | 2010-08-18 | 广东吉荣空调有限公司 | Wide-temperature high-efficiency air source heat pump unit with anti-frosting function and operating method thereof |
| CN202648270U (en) * | 2012-06-13 | 2013-01-02 | 广东澳信热泵空调有限公司 | Anti-freeze low temperature heat pump air conditioning heat exchange system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61114042A (en) * | 1984-11-07 | 1986-05-31 | Daikin Ind Ltd | Defrosting control device of air conditioner |
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2012
- 2012-06-13 CN CN201210193682.3A patent/CN102721240B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101398234A (en) * | 2007-09-28 | 2009-04-01 | 德州亚太集团有限公司 | Low-temperature air-cooling heat pump unit |
| CN101806519A (en) * | 2010-04-19 | 2010-08-18 | 广东吉荣空调有限公司 | Wide-temperature high-efficiency air source heat pump unit with anti-frosting function and operating method thereof |
| CN202648270U (en) * | 2012-06-13 | 2013-01-02 | 广东澳信热泵空调有限公司 | Anti-freeze low temperature heat pump air conditioning heat exchange system |
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| CN102721240A (en) | 2012-10-10 |
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Granted publication date: 20160210 |