CN105180257A - Cascade type air source heat supply heat pump system suitable for ultralow temperature environment - Google Patents
Cascade type air source heat supply heat pump system suitable for ultralow temperature environment Download PDFInfo
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- CN105180257A CN105180257A CN201510665848.0A CN201510665848A CN105180257A CN 105180257 A CN105180257 A CN 105180257A CN 201510665848 A CN201510665848 A CN 201510665848A CN 105180257 A CN105180257 A CN 105180257A
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- temperature system
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Abstract
The invention discloses a cascade type air source heat supply heat pump system suitable for an ultralow temperature environment. The system comprises a heat exchange fan, a low temperature system evaporator, a low temperature system gas-liquid separator, a low temperature system compressor, an evaporative condenser, a low temperature system liquid storage tank, a low temperature system throttle valve, a high temperature system gas-liquid separator, a high temperature system compressor, a high temperature system water condenser, a high temperature system liquid storage tank and a high temperature system throttle valve. The evaporative condenser serves both as a low temperature system condenser and a high temperature system evaporator. A refrigerant in a low temperature system absorbs heat in the low temperature system evaporator and enters the evaporative condenser to release heat through the low temperature system gas-liquid separator and the low temperature system compressor. Meanwhile, a refrigerant in a high temperature system carries heat into the high temperature system water condenser from the evaporative condenser through the high temperature system gas-liquid separator and the high temperature system compressor and transfers the heat to water in a heat exchange mode to obtain hot water with the required temperature. The cascade type air source heat supply heat pump system can be operated in the ultralow temperature environment efficiently.
Description
Technical field
The present invention relates to ultra-low temperature surroundings air-source highly effective heating technical field, be specifically related to a kind of overlapping air source heating heat pump system be applicable under ultra-low temperature surroundings.
Background technology
Supplying under thermal condition, the performance of air source heat pump sharply declines along with the reduction of evaporating temperature, at very low temperature, as the winter of northern China, compression ratio too high problem is there will be when using air source heat pump to prepare high-temperature-hot-water, evaporimeter there will be frost simultaneously, and have a strong impact on the performance of unit, this also limit the use of winter air source heat pump at cold district simultaneously.
Summary of the invention
For the deficiencies in the prior art, the present invention aim to provide a kind of can in the overlapping air source heating heat pump system of Effec-tive Function under ultra-low temperature surroundings.
For achieving the above object, the present invention adopts following technical scheme:
Be applicable to the overlapping air source heating heat pump system of ultra-low temperature surroundings, comprise heat exchange blower fan, cryogenic system evaporimeter, cryogenic system gas-liquid separator, cryogenic system compressor, evaporative condenser, cryogenic system receiver, cryogenic system choke valve, high-temperature systems gas-liquid separator, high-temperature systems compressor, high-temperature systems water condenser, high-temperature systems receiver and high-temperature systems choke valve, described heat exchange blower fan is arranged on outside cryogenic system evaporimeter, cryogenic system evaporimeter one end is connected with cryogenic system compressor one end by cryogenic system gas-liquid separator, the cryogenic system compressor other end connects evaporative condenser, evaporative condenser connects cryogenic system receiver, cryogenic system receiver is connected with the cryogenic system evaporimeter other end by cryogenic system choke valve,
High-temperature systems gas-liquid separator one end connects evaporative condenser, the other end connects high-temperature systems compressor one end, the high-temperature systems compressor other end connects high-temperature systems water condenser, high-temperature systems water condenser connects high-temperature systems receiver, and high-temperature systems receiver connects evaporative condenser by high-temperature systems choke valve.
Further, described evaporative condenser is cryogenic system condenser and high-temperature systems evaporimeter.
Further, described cryogenic system evaporimeter is evaporator fin.
The present invention has following beneficial effect:
The present invention is applicable to the overlapping air source heating heat pump system of ultra-low temperature surroundings, its evaporative condenser is cryogenic system condenser and high-temperature systems evaporimeter, in cryogenic system, cold-producing medium absorbs heat in cryogenic system evaporimeter, and become the gas of equality of temperature with pressure by cryogenic system gas-liquid separator by the gas-liquid mixed state of low-temp low-pressure, gaseous refrigerant enters be compressed into the gas of HTHP in cryogenic system compressor after can as releases heat in the evaporative condenser of cryogenic system condenser, heat is transferred heat to water from bringing in high-temperature systems water condenser and in the mode of heat exchange via high-temperature systems gas-liquid separator and high-temperature systems compressor respectively as the evaporative condenser of high-temperature systems evaporimeter by the cold-producing medium meanwhile in high-temperature systems, thus obtain temperature required high-temperature-hot-water, having can in the feature of Effec-tive Function under ultra-low temperature surroundings.
Accompanying drawing explanation
Fig. 1 is its simple structure schematic diagram of overlapping air source heating heat pump system that the present invention is applicable to ultra-low temperature surroundings.
In figure: 1, heat exchange blower fan; 2, cryogenic system evaporimeter; 3, cryogenic system gas-liquid separator; 4, cryogenic system compressor; 5, evaporative condenser; 6, cryogenic system receiver; 7, cryogenic system choke valve; 8, high-temperature systems gas-liquid separator; 9, high-temperature systems compressor; 10, high-temperature systems water condenser; 11, high-temperature systems receiver; 12, high-temperature systems choke valve.
Detailed description of the invention
Below in conjunction with drawings and the specific embodiments, the invention will be further described, understands the technological thought of application claims protection so that clearer.
The present invention is applicable to the overlapping air source heating heat pump system of ultra-low temperature surroundings as shown in Figure 1, comprise heat exchange blower fan 1, cryogenic system evaporimeter 2, cryogenic system gas-liquid separator 3, cryogenic system compressor 4, evaporative condenser 5, cryogenic system receiver 6, cryogenic system choke valve 7, high-temperature systems gas-liquid separator 8, high-temperature systems compressor 9, high-temperature systems water condenser 10, high-temperature systems receiver 11 and high-temperature systems choke valve 12, cryogenic system evaporimeter 2 is evaporator fin, evaporative condenser 5 is cryogenic system condenser and high-temperature systems evaporimeter, heat exchange blower fan 1 is arranged on outside cryogenic system evaporimeter 2, cryogenic system evaporimeter 2 one end is connected with cryogenic system compressor 4 one end by cryogenic system gas-liquid separator 3, cryogenic system compressor 4 other end connects evaporative condenser 5, evaporative condenser 5 connects cryogenic system receiver 6, cryogenic system receiver 6 is connected with cryogenic system evaporimeter 2 other end by cryogenic system choke valve 7,
High-temperature systems gas-liquid separator 8 one end connects evaporative condenser 5, the other end connects high-temperature systems compressor 9 one end, high-temperature systems compressor 9 other end connects high-temperature systems water condenser 10, high-temperature systems water condenser 10 connects high-temperature systems receiver 11, and high-temperature systems receiver 11 connects evaporative condenser 5 by high-temperature systems choke valve 12.
Operation principle of the present invention is: its evaporative condenser 5 is cryogenic system condenser and high-temperature systems evaporimeter, in cryogenic system, cold-producing medium absorbs heat in cryogenic system evaporimeter 2, and become the gas of equality of temperature with pressure by cryogenic system gas-liquid separator 3 by the gas-liquid mixed state of low-temp low-pressure, gaseous refrigerant enters be compressed into the gas of HTHP in cryogenic system compressor 4 after can as releases heat in the evaporative condenser 5 of cryogenic system condenser, heat is transferred heat to water from bringing in high-temperature systems water condenser 10 and in the mode of heat exchange via high-temperature systems gas-liquid separator 8 and high-temperature systems compressor 9 respectively as the evaporative condenser 5 of high-temperature systems evaporimeter by the cold-producing medium meanwhile in high-temperature systems, thus obtain temperature required high-temperature-hot-water, can at Effec-tive Function under ultra-low temperature surroundings.
For a person skilled in the art, according to technical scheme described above and design, other various corresponding change and distortion can be made, and all these change and distortion all should belong within the protection domain of the claims in the present invention.
Claims (3)
1. be applicable to the overlapping air source heating heat pump system of ultra-low temperature surroundings, it is characterized in that: comprise heat exchange blower fan (1), cryogenic system evaporimeter (2), cryogenic system gas-liquid separator (3), cryogenic system compressor (4), evaporative condenser (5), cryogenic system receiver (6), cryogenic system choke valve (7), high-temperature systems gas-liquid separator (8), high-temperature systems compressor (9), high-temperature systems water condenser (10), high-temperature systems receiver (11) and high-temperature systems choke valve (12), described heat exchange blower fan (1) is arranged on cryogenic system evaporimeter (2) outside, cryogenic system evaporimeter (2) one end is connected with cryogenic system compressor (4) one end by cryogenic system gas-liquid separator (3), cryogenic system compressor (4) other end connects evaporative condenser (5), evaporative condenser (5) connects cryogenic system receiver (6), and cryogenic system receiver (6) is connected with cryogenic system evaporimeter (2) other end by cryogenic system choke valve (7),
High-temperature systems gas-liquid separator (8) one end connects evaporative condenser (5), the other end connects high-temperature systems compressor (9) one end, high-temperature systems compressor (9) other end connects high-temperature systems water condenser (10), high-temperature systems water condenser (10) connects high-temperature systems receiver (11), and high-temperature systems receiver (11) connects evaporative condenser (5) by high-temperature systems choke valve (12).
2. be applicable to the overlapping air source heating heat pump system of ultra-low temperature surroundings as claimed in claim 1, it is characterized in that: described evaporative condenser (5) is cryogenic system condenser and high-temperature systems evaporimeter.
3. be applicable to the overlapping air source heating heat pump system of ultra-low temperature surroundings as claimed in claim 1, it is characterized in that: described cryogenic system evaporimeter (2) is evaporator fin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510665848.0A CN105180257A (en) | 2015-10-16 | 2015-10-16 | Cascade type air source heat supply heat pump system suitable for ultralow temperature environment |
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| CN201510665848.0A CN105180257A (en) | 2015-10-16 | 2015-10-16 | Cascade type air source heat supply heat pump system suitable for ultralow temperature environment |
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| CN105180257A true CN105180257A (en) | 2015-12-23 |
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| CN201510665848.0A Pending CN105180257A (en) | 2015-10-16 | 2015-10-16 | Cascade type air source heat supply heat pump system suitable for ultralow temperature environment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105674623A (en) * | 2016-03-14 | 2016-06-15 | 黑龙江宏利天扬新能源技术开发有限公司 | Cascade air source heat pump system suitable for ultralow-temperature environment |
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| KR20100118476A (en) * | 2009-04-28 | 2010-11-05 | 주식회사 두손 | Heat pump heating and cooling system using dual type energy saving system |
| CN102563974A (en) * | 2012-02-17 | 2012-07-11 | 重庆大学 | Coupling injection enthalpy-increasing air source heat pump system |
| CN204115294U (en) * | 2014-09-15 | 2015-01-21 | 美意(浙江)空调设备有限公司 | Superhigh temperature overlapping water source heat pump |
| CN104713261A (en) * | 2015-03-18 | 2015-06-17 | 沈阳一冷新能源技术有限公司 | Cascade ground source heat pump and use method thereof |
| CN104833087A (en) * | 2015-04-30 | 2015-08-12 | 南京理工大学 | Cascading middle and high-temperature air source heat pump hot water machine set |
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2015
- 2015-10-16 CN CN201510665848.0A patent/CN105180257A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100118476A (en) * | 2009-04-28 | 2010-11-05 | 주식회사 두손 | Heat pump heating and cooling system using dual type energy saving system |
| CN102563974A (en) * | 2012-02-17 | 2012-07-11 | 重庆大学 | Coupling injection enthalpy-increasing air source heat pump system |
| CN204115294U (en) * | 2014-09-15 | 2015-01-21 | 美意(浙江)空调设备有限公司 | Superhigh temperature overlapping water source heat pump |
| CN104713261A (en) * | 2015-03-18 | 2015-06-17 | 沈阳一冷新能源技术有限公司 | Cascade ground source heat pump and use method thereof |
| CN104833087A (en) * | 2015-04-30 | 2015-08-12 | 南京理工大学 | Cascading middle and high-temperature air source heat pump hot water machine set |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105674623A (en) * | 2016-03-14 | 2016-06-15 | 黑龙江宏利天扬新能源技术开发有限公司 | Cascade air source heat pump system suitable for ultralow-temperature environment |
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Application publication date: 20151223 |