CN101825374B - Cascade high-temperature heat pump with liquid intermediate-temperature heat source and double low-temperature heat sources - Google Patents
Cascade high-temperature heat pump with liquid intermediate-temperature heat source and double low-temperature heat sources Download PDFInfo
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- CN101825374B CN101825374B CN 201010170289 CN201010170289A CN101825374B CN 101825374 B CN101825374 B CN 101825374B CN 201010170289 CN201010170289 CN 201010170289 CN 201010170289 A CN201010170289 A CN 201010170289A CN 101825374 B CN101825374 B CN 101825374B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
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- Y02B30/12—Hot water central heating systems using heat pumps
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Abstract
The invention discloses a cascade high-temperature heat pump with a liquid intermediate-temperature heat source and double low-temperature heat sources. The heat pump is cascaded by high and low-temperature two heat pump circulating systems; the low-temperature heat pump circulating system comprises a low-temperature compressor, a double heat source evaporator, a heat source type condenser/evaporator, a low-temperature throttling valve and a connecting pipeline; the heat pump working medium of the low-temperature heat pump circulating system is a low-temperature heat pump working medium; the high-temperature heat pump circulating system comprises a high-temperature compressor, a heat source type condenser/evaporator, a high-temperature condenser, a high-temperature throttling valve and a connecting pipeline; the heat pump working medium of the high-temperature heat pump circulating system is a high-temperature heat pump working medium; the double heat source evaporator is provided with a low-temperature heat pump working medium passage and two heat source passages; and the heat source type condenser/evaporator is provided with a low-temperature heat pump working medium passage, a high-temperature heat pump working medium passage and a liquid heat source passage. The system device can efficiently provide hot water of over 75 DEG C, can be widely applied to the heating systems of civil buildings, public buildings and villa buildings, and can meet the high-temperature hot water requirement of industrial production.
Description
Technical field
The present invention relates to the heat pump air conditioner technical field, especially relate to a kind of cascade high-temperature heat pump that hot water more than 75 ℃ is provided with warm source and two low-temperature heat sources in the liquid state.
Background technology
Along with the continuous propelling of national energy-saving and emission-reduction work, the medium small boiler in the city is eliminated gradually, presses for new high-efficient energy-saving environment friendly device at present and replaces the medium small boiler that is eliminated for heating with the high-temperature-hot-water that provides more than 75 ℃ is provided.Traditional heat pump can only provide water temperature not to be higher than 55 ℃ hot water, can not satisfy heating and production demand, and the single-stage of studying at present circulation and superposition type cyclic high-temperature heat pump all can only adopt single low temperature or single in warm source, can't realize compound utilization to two or more thermals source, and the worst hot case running efficiency is very low, is difficult to apply.
Summary of the invention
Purpose of the present invention provide at existing weak point in the above-mentioned prior art just a kind of can to air, solar energy, regenerative resource such as energy and various waste heat, used heat carry out comprehensive with rationally utilize, can produce the cascade high-temperature heat pump with warm source and two low-temperature heat sources in the liquid state of hot water more than 75 ℃.
Purpose of the present invention can realize by following technique measures:
Cascade high-temperature heat pump with warm source in the liquid state and two low-temperature heat sources of the present invention is to be formed by two heat pump circulating system overlappings of high and low temperature:
A, the circulation of described low temperature comprise cryogenic compressor, two thermal source evaporimeter, heat source type condenser/evaporator, cryogenic throttle valve and connecting line; Described pair of thermal source evaporimeter has a hot pump in low temp working medium passage and two thermal source passages, and the heat source type condenser/evaporator has a hot pump in low temp working medium passage, a high temperature heat pump working medium passage and a liquid heat source passage; Wherein the import of cryogenic compressor connects the outlet of the hot pump in low temp working medium passage of two thermal source evaporimeters, and the outlet of cryogenic compressor connects the import of the hot pump in low temp working medium passage of heat source type condenser/evaporator; The outlet of the hot pump in low temp working medium passage of heat source type condenser/evaporator is connected by the import of cryogenic throttle valve with the hot pump in low temp working medium passage of two thermal source evaporimeters, and its heat pump fluid is hot pump in low temp working medium (for the used working medium of conventional heat pump air conditioner); Being connected with the import and export pipeline of liquid heat source respectively of the liquid heat source passage of described heat source type condenser/evaporator, constitute independently loop into and out of interface; Two thermal source passages of described pair of thermal source evaporimeter connecting with the import and export pipeline of two kinds of different low-temperature heat sources respectively separately, constitute two independently loops into and out of interface;
B, described high temperature circulation comprise high temperature compressed machine, heat source type condenser/evaporator, high temperature condenser, high temperature choke valve and connecting line; Wherein the import of high temperature compressed machine connects the outlet of the high temperature heat pump working medium passage of heat source type condenser/evaporator, the outlet of high temperature compressed machine connects the import of the heat pump fluid passage of high temperature condenser, the import of the high temperature heat pump working medium passage of heat source type condenser/evaporator is connected by the outlet of high temperature choke valve with the heat pump fluid passage of high temperature condenser, and its heat pump fluid is high temperature heat pump working medium (for condensation temperature 〉=75 in the higher high temperature heat pump working medium of condensation temperature, its nominal situation scope ℃).
The described pair of employed thermal source of thermal source evaporimeter can be temperature≤30 ℃ air, solar energy, regenerative resource and various waste heat and used heat such as energy.
The employed thermal source of described heat source type condenser/evaporator can be temperature 〉=30 ℃ solar energy, renewable thermal source such as energy and various liquid waste heat, used heat.
Cascade high-temperature heat pump with warm source in the liquid state and two low-temperature heat sources of the present invention both can absorb warm source heat in gaseous state low-temperature heat source, liquid low-temperature heat source and the gaseous state separately, can absorb the heat of any two or three thermal source in the warm source in gaseous state low-temperature heat source, liquid low-temperature heat source, the liquid state again simultaneously.
Two thermal source evaporimeters are Chinese patent 200720091299.1 disclosed fin one sleeve type three mediums composite heat exchangers described in the present invention, also can adopt Chinese patent 200820069364.5 disclosed shell-sleeve type three mediums composite heat-exchangers with three kinds of medium channels.
The condenser/evaporator of heat source type described in the present invention is Chinese patent 200820069364.5 disclosed shell-sleeve type three mediums composite heat-exchangers with three kinds of medium channels.
Beneficial effect of the present invention is as follows:
Device of the present invention can provide the hot water more than 75 ℃ efficiently, can be widely used in the heating system of civil buildings, public building, villa buildings, and can satisfy industrial high-temperature-hot-water demand.
Description of drawings
Fig. 1 has the structure principle chart of the cascade high-temperature heat pump of warm source in the liquid state and two low-temperature heat sources for the present invention.
Fig. 2 is gaseous state and liquid structure principle chart with the cascade high-temperature heat pump in warm source and two low-temperature heat sources in the liquid state for low-temperature heat source.
Fig. 3 is the structure principle chart of the cascade high-temperature heat pump with warm source in the liquid state and two low-temperature heat sources of two kinds of liquid heat sources for low-temperature heat source.
Sequence number among the figure: 1 cryogenic compressor, 1 ' the high temperature compressed machine, 2 pairs of thermal source evaporimeters, 3 high temperature condensers, 4 cryogenic throttle valves, 4 ' high temperature choke valve, 5 heat source type condenser/evaporators.
The specific embodiment
The present invention is further described below with reference to embodiment (accompanying drawing), but does not limit the present invention.
As shown in Figure 1, the cascade high-temperature heat pump with warm source in the liquid state and two low-temperature heat sources of present embodiment is formed by two heat pump circulating system overlappings of high and low temperature; Wherein: described low temperature circulation comprises cryogenic compressor 1, two thermal source evaporimeter 2, heat source type condenser/evaporator 5, cryogenic throttle valve 4 and connecting line; Described pair of thermal source evaporimeter 2 has a hot pump in low temp working medium passage and two thermal source passages, and heat source type condenser/evaporator 5 has a hot pump in low temp working medium passage, a high temperature heat pump working medium passage and a liquid heat source passage; Wherein the import of cryogenic compressor 1 connects the outlet of the hot pump in low temp working medium passage of two thermal source evaporimeters 2, and the outlet of cryogenic compressor 1 connects the import of the hot pump in low temp working medium passage of heat source type condenser/evaporator 5; The outlet of the hot pump in low temp working medium passage of heat source type condenser/evaporator 5 is connected by the import of cryogenic throttle valve 4 with the hot pump in low temp working medium passage of two thermal source evaporimeters 2, and its heat pump fluid is hot pump in low temp working medium (for the used working medium of conventional heat pump air conditioner); Being connected with the import and export pipeline of liquid heat source respectively of the liquid heat source passage of described heat source type condenser/evaporator 5, constitute independently loop into and out of interface; Two thermal source passages of described pair of thermal source evaporimeter 2 connecting with the import and export pipeline of two kinds of different low-temperature heat sources respectively separately, constitute two independently loops into and out of interface; Described high temperature circulation comprises high temperature compressed machine 1 ', heat source type condenser/evaporator 5, high temperature condenser 3, high temperature choke valve 4 ' and connecting line; Wherein the import of high temperature compressed machine 1 ' connects the outlet of the high temperature heat pump working medium passage of heat source type condenser/evaporator 5, the outlet of high temperature compressed machine 1 ' connects the import of the heat pump fluid passage of high temperature condenser 3, the import of the high temperature heat pump working medium passage of heat source type condenser/evaporator 5 is connected by the outlet of high temperature choke valve 4 ' with the heat pump fluid passage of high temperature condenser 3, and its heat pump fluid is high temperature heat pump working medium (for condensation temperature 〉=75 in the higher high temperature heat pump working medium of condensation temperature, its nominal situation scope ℃).
The described pair of employed thermal source of thermal source evaporimeter can be temperature≤30 ℃ air, solar energy, regenerative resource and various waste heat and used heat such as energy.
The employed thermal source of described heat source type condenser/evaporator can be temperature 〉=30 ℃ solar energy, renewable thermal source such as energy and various liquid waste heat, used heat.
Cascade high-temperature heat pump with warm source in the liquid state and two low-temperature heat sources of the present invention both can absorb warm source heat in gaseous state low-temperature heat source, liquid low-temperature heat source and the gaseous state separately, can absorb warm source heat in gaseous state low-temperature heat source, liquid low-temperature heat source and the gaseous state again simultaneously.
As shown in Figure 2, the present embodiment structure is identical with embodiment 1, and the low-temperature heat source described in this embodiment is gaseous state and liquid heat source.
As shown in Figure 3, the present embodiment structure is identical with embodiment 1, and the low-temperature heat source described in this embodiment is two kinds of liquid heat sources.
Two thermal source evaporimeters are Chinese patent 200720091299.1 disclosed fin one sleeve type three mediums composite heat exchangers described in the present invention, also can adopt Chinese patent 200820069364.5 disclosed shell-sleeve type three mediums composite heat-exchangers with three kinds of medium channels.
The condenser/evaporator of heat source type described in the present invention is Chinese patent 200820069364.5 disclosed shell-sleeve type three mediums composite heat-exchangers with three kinds of medium channels.
Workflow of the present invention is as follows:
(1) independent low-temperature heat source pattern
A, single gaseous state low-temperature heat source pattern.
Hot pump in low temp working medium through to heat source type condenser/evaporator 5 release heat, enters two thermal source evaporimeters 2 through cryogenic throttle valve 4 by cryogenic compressor 1 compression, enters cryogenic compressor behind the absorption gaseous state thermal source heat and enters next circulation; High temperature heat pump working medium is by the 1 ' compression of high temperature compressed machine, through to high temperature condenser 3 release heat, and through high temperature choke valve 4 ', heat source type condenser/evaporator 5, absorption hot pump in low temp working medium heat is laggard goes into high temperature compressed machine and enters next circulation.
B, single liquid low-temperature heat source pattern.
Hot pump in low temp working medium through to heat source type condenser/evaporator 5 release heat, enters two thermal source evaporimeters 2 through cryogenic throttle valve 4 by cryogenic compressor 1 compression, enters cryogenic compressor behind the absorption liquid heat source heat and enters next circulation; High temperature heat pump working medium is by the 1 ' compression of high temperature compressed machine, through to high temperature condenser 3 release heat, and through high temperature choke valve 4 ', heat source type condenser/evaporator 5, absorption hot pump in low temp working medium heat is laggard goes into high temperature compressed machine and enters next circulation.
C, the two low-temperature heat source composite modes of gaseous state-liquid state.
Hot pump in low temp working medium through to heat source type condenser/evaporator 5 release heat, enters pair thermal source evaporimeters 2 through cryogenic throttle valve 4 by cryogenic compressor 1 compression, absorbs simultaneously to enter cryogenic compressor behind gaseous state thermal source and the liquid heat source heat and enter next circulation; High temperature heat pump working medium is by high temperature compressed machine 1, compression, and through to high temperature condenser 3 release heat, through high temperature choke valve 4 ', heat source type condenser/evaporator 5, absorption hot pump in low temp working medium heat is laggard goes into high temperature compressed machine and enters next circulation.
D, biliquid attitude low-temperature heat source composite mode.
Hot pump in low temp working medium through to heat source type condenser/evaporator 5 release heat, enters pair thermal source evaporimeters 2 through cryogenic throttle valve 4 by cryogenic compressor 1 compression, absorbs simultaneously to enter cryogenic compressor behind the heat of two kinds of liquid heat sources and enter next circulation; High temperature heat pump working medium is by the 1 ' compression of high temperature compressed machine, through to high temperature condenser 3 release heat, and through high temperature choke valve 4 ', heat source type condenser/evaporator 5, absorption hot pump in low temp working medium heat is laggard goes into high temperature compressed machine and enters next circulation.
(2) warm source module in the independent liquid state
Close cryogenic compressor 1, high temperature heat pump working medium is by high temperature compressed machine 1 ' compression, and through to high temperature condenser 3 release heat, through high temperature choke valve 4 ', heat source type condenser/evaporator 5 enters high temperature compressed machine behind the heat of warm source in the absorption liquid state and enters next circulation.
(3) warm source and single low-temperature heat source composite mode in the liquid state
Hot pump in low temp working medium through to heat source type condenser/evaporator 5 release heat, enters two thermal source evaporimeters 2 through cryogenic throttle valve 4 by cryogenic compressor 1 compression, enters cryogenic compressor behind absorption gaseous state or the liquid heat source heat and enters next circulation; High temperature heat pump working medium is by high temperature compressed machine 1 ' compression, and through to high temperature condenser 3 release heat, through high temperature choke valve 4 ', heat source type condenser/evaporator 5 enters high temperature compressed machine behind the heat of warm source in absorption hot pump in low temp working medium and the liquid state and enters next circulation.
(4) warm source and two low-temperature heat source composite modes in the liquid state
Hot pump in low temp working medium through to heat source type condenser/evaporator 5 release heat, enters pair thermal source evaporimeters 2 through cryogenic throttle valve 4 by cryogenic compressor 1 compression, absorbs simultaneously to enter cryogenic compressor behind gaseous state and the liquid heat source heat and enter next circulation; High temperature heat pump working medium is by high temperature compressed machine 1 ' compression, and through to high temperature condenser 3 release heat, through high temperature choke valve 4 ', heat source type condenser/evaporator 5 enters high temperature compressed machine behind the heat of warm source in absorption hot pump in low temp working medium and the liquid state and enters next circulation.
Claims (1)
1. cascade high-temperature heat pump with warm source in the liquid state and two low-temperature heat sources, it is characterized in that: this device is formed by two heat pump circulating system overlappings of high and low temperature:
A, the circulation of described low temperature comprise cryogenic compressor (1), two thermal source evaporimeter (2), heat source type condenser/evaporator (5), cryogenic throttle valve (4) and connecting line; Described pair of thermal source evaporimeter (2) has a hot pump in low temp working medium passage and two thermal source passages, and heat source type condenser/evaporator (5) has a hot pump in low temp working medium passage, a high temperature heat pump working medium passage and a liquid heat source passage; Wherein the import of cryogenic compressor (1) connects the outlet of the hot pump in low temp working medium passage of two thermal source evaporimeters (2), and the outlet of cryogenic compressor (1) connects the import of the hot pump in low temp working medium passage of heat source type condenser/evaporator (5); The outlet of the hot pump in low temp working medium passage of heat source type condenser/evaporator (5) is connected by the import of cryogenic throttle valve (4) with the hot pump in low temp working medium passage of two thermal source evaporimeters (2), and its heat pump fluid is a hot pump in low temp working medium; Being connected with the import and export pipeline of liquid heat source respectively of the liquid heat source passage of described heat source type condenser/evaporator (5), constitute independently loop into and out of interface; Two thermal source passages of described pair of thermal source evaporimeter (2) connecting with the import and export pipeline of two kinds of different low-temperature heat sources respectively separately, constitute two independently loops into and out of interface;
B, described high temperature circulation comprise high temperature compressed machine (1 '), heat source type condenser/evaporator (5), high temperature condenser (3), high temperature choke valve (4 ') and connecting line; The import of wherein high temperature compressed machine (1 ') connects the outlet of the high temperature heat pump working medium passage of heat source type condenser/evaporator (5), the outlet of high temperature compressed machine (1 ') connects the import of the heat pump fluid passage of high temperature condenser (3), the import of the high temperature heat pump working medium passage of heat source type condenser/evaporator (5) is connected by the outlet of high temperature choke valve (4 ') with the heat pump fluid passage of high temperature condenser (3), and its heat pump fluid is a high temperature heat pump working medium.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104457027A (en) * | 2014-12-02 | 2015-03-25 | 苟仲武 | Improved compression heat pump working method and device |
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| CN104406340B (en) * | 2014-10-28 | 2017-01-11 | 广东芬尼克兹节能设备有限公司 | Overlapping type heat pump compressor control method and system |
| CN105042672A (en) * | 2015-09-01 | 2015-11-11 | 中国铁道科学研究院 | Air source CO2 heat pump system suitable for connecting heating radiators |
| GB2567333B (en) * | 2016-08-02 | 2020-06-24 | Mitsubishi Electric Corp | Heat pump apparatus |
| CN110701664B (en) * | 2019-11-11 | 2023-05-05 | 江苏天舒电器有限公司 | Wide-ring-temperature multistage water outlet variable-frequency air energy cascade heat engine system and working method thereof |
| CN114136019A (en) * | 2021-11-30 | 2022-03-04 | 上海发电设备成套设计研究院有限责任公司 | High-temperature steam heat pump system |
| CN116428655A (en) * | 2022-01-21 | 2023-07-14 | 宁波奥克斯电气股份有限公司 | Control method of coupling system of air conditioner and heat pump water heater |
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| CN201672738U (en) * | 2010-05-13 | 2010-12-15 | 中原工学院 | Cascade high-temperature heat pump with liquid medium-temperature heat source and double low-temperature heat sources |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104457027A (en) * | 2014-12-02 | 2015-03-25 | 苟仲武 | Improved compression heat pump working method and device |
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