CN102721235A - Water source heating and air conditioning water heater - Google Patents
Water source heating and air conditioning water heater Download PDFInfo
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- CN102721235A CN102721235A CN2012101852762A CN201210185276A CN102721235A CN 102721235 A CN102721235 A CN 102721235A CN 2012101852762 A CN2012101852762 A CN 2012101852762A CN 201210185276 A CN201210185276 A CN 201210185276A CN 102721235 A CN102721235 A CN 102721235A
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Abstract
The invention provides a water source heating and air conditioning water heater which only uses two refrigerant solenoid valves to be combined with a refrigerant one-way valve, and solves the hidden danger that fluorine gradually leaks in heat pump circulation, which is caused by the fact that a switched heat exchanger continuously stores refrigerant and is solved by using 6-8 refrigerant solenoid valves in the conventional air source three-purpose machine technology. Therefore, the circulation of a refrigerant between the heat exchanger to be switched and the heat pump circulation can be fundamentally avoided, and the water source heating and air conditioning water heater capable of realizing long-period self-stable operation is constructed. The four functions of heating, air conditioning, hot water, and combination of air conditioning and hot water can be realized with simper structure, lower cost, reliable operation and higher efficiency.
Description
(1) technical field
The present invention relates to a kind of water source heating air conditioner water heating machine.
(2) background technology
The Chinese invention patent " warming, air conditioning+hot water machine " of the power that obtains (obtains the power patent No.: ZL200410038964.1), by 3 heat exchangers and 2 heat pump circuit that magnetic valve constitutes, realize heating, air conditioning, and water heating functions three function synthesized utilizations; Move 20 years initial cost+running costs and reduce by 20～45% than prior art.Yet there are following serious problems in this system in actual motion:
In 3 heat exchangers of heat pump; 2 air-side heat exchangers that are connected in parallel and hot water heat exchanger only realize that by 2 cooling medium liquid way solenoid valves function switches; The gas circuit of its refrigerant then communicates fully, thereby when multi-functional switchover operation process and heat pump shutdown, crossfire and the accumulation of all uncontrollable refrigerant between 2 heat exchangers in parallel; When lacking refrigerant during the heat pump circuit that makes operation and refrigerant excessive, cause its irregular operation even protection.For example: air-side heat exchanger is because the cavity volume of its refrigerant is bigger, if sealed by magnetic valve when the liquid road of its refrigerant after therefore function is switched, then with another hot water heat exchanger during as the condenser parallel running; Then compressor air-discharging will constantly charge to it; And when environment temperature is low, will cause wherein constantly having condensate accumulation, thereby must make operating heat pump cycle lack fluorine gradually; Can't realize its stable operation, even system protection occur.And the patented technology of existing air source three-way set generally needs 6 to 8 refrigerant magnetic valves could solve by the switching heat exchanger constantly to accumulate heat pump cycle that cooling medium liquid the causes hidden danger of scarce fluorine gradually.
(3) summary of the invention
The objective of the invention is to want the advantage of comprehensive warming, air conditioning+hot water machine, improve its weak point, provide a kind of refrigerant of fundamentally avoiding between by switching heat exchanger and heat pump cycle, to circulate, can realize the water source heating air conditioner water heating machine of long-term self-stabilization operation.
The technical scheme that the present invention adopts, promptly the water source heating air conditioner water heating machine is shown in accompanying drawing 1, wherein: the 1-compressor; The 2-high-voltage switch gear; The 3-four-way change-over valve; 4.2-refrigerant bidirectional electromagnetic valve; 4.3-refrigerant three-way magnetic valve; The 5-coolant solo valve; 6-water source side evaporator; 7-high pressure reservoir; The 8-device for drying and filtering; The 9-expansion valve; 10-uses the side evaporator; The 11-gas-liquid separator; The 12-low tension switch; 13-hot water condenser; The 14-air bleeding valve; The threeway of 15-function; 16-triple valve group; The 17-circulating pump; The 18-non-return valve; The 19-warming, air conditioning is terminal; The 20-filter; 21-import threeway; The 22-hot water circulating pump; 23-exports threeway; The 24-boiler; 25-moisturizing threeway; 26-draining safety valve; The 27-water pump; The 28-waterway electromagnetic valve.
According to the water source heating air conditioner water heating machine shown in the accompanying drawing 1: its coolant solo valve 5 and the middle high pressure reservoir 7 that is connected in series, device for drying and filtering 8, expansion valve 9 of arranging by compressor 1, high-voltage switch gear 2, four-way change-over valve 3, refrigerant three-way magnetic valve 4.3, water source side evaporator 6 refrigerant sides, refrigerant bidirectional electromagnetic valve 4.2, threeway, 4 bridge-types, use side evaporator 10 refrigerant sides, four-way change-over valve 3, gas-liquid separator 11, low tension switch 12, compressor 1, form the air-water heat pump circuit;
Hot water condenser 13 refrigerant side liquid interface tubes pass through refrigerant three-way magnetic valve 4.3 (its direction is pointed to hot water condenser 13) through coolant solo valve 5 (its direction deviates from hot water condenser 13) and refrigerant side air pipe interface thereof; Be in parallel with the control branch road of water source side evaporator 6 refrigerant sides, to form the water-water heat pump branch road;
Use side evaporator 10 refrigerating medium side outlets through pipeline be connected in series air bleeding valve 14, function threeway 15, its import is through pipeline be connected in series triple valve group 16, circulating pump 17, non-return valve 18, to form the cold/heat supply handoff leg;
Function threeway 15 connects warming, air conditioning end 19, filter 20, triple valve group 16 through pipeline, forms terminal 19 branch roads of warming, air conditioning;
Import threeway 21 connects hot water circulating pump 22, non-return valve 18, hot water condenser 13 hot water sides, air bleeding valve 14, outlet threeway 23 through pipeline, forms the hot water branch road;
Function threeway 15 connects outlet threeway 23, boiler 24, moisturizing threeway 25, filter 20, import threeway 21, triple valve group 16 through pipeline, forms boiler 24 hot water branch roads;
Upper hose forms moisturizing, level pressure branch road through filter 20, low tension switch 12, non-return valve 18, draining safety valve 26;
Water source side evaporator 6 is set up it and is driven water pump 27;
The hot water fairlead of boiler 24 is provided with waterway electromagnetic valve 28, and by the low tension switch that is provided with on moisturizing, the level pressure branch road 12 controls.
Refrigerant three-way magnetic valve 4.3 be 1 refrigerant three-way magnetic valve 4.3 shown in accompanying drawing 1, or be connected with 1 refrigerant unidirectional electrical magnet valve 4.1 and 1 threeway by 1 refrigerant bidirectional electromagnetic valve 4.2 and form shown in accompanying drawing 2.
Refrigerant bidirectional electromagnetic valve 4.2 is 1 refrigerant bidirectional electromagnetic valve 4.2 like accompanying drawing 1 with shown in the accompanying drawing 2, or is connected to form shown in accompanying drawing 3 by 1 refrigerant unidirectional electrical magnet valve 4.1 and 1 coolant solo valve 5 and 2 threeway reverse parallel connections.
Expansion valve 9 is electric expansion valve 9, heating power expansion valve 9, capillary 9, restricting orifice 9, or mutual series, parallel structure therebetween.
Triple valve group 16 is 1 triple valve 16, or is connected by 2 two-port valves and 1 threeway and forms.
Using side evaporator 10 and hot water condenser 13 is the heat exchangers between refrigerant such as shell and tube exchanger, plate type heat exchanger, plate-fin heat exchanger, double pipe heat exchanger, coil exchanger and refrigerating medium or the hot water.
Operation principle of the present invention combines accompanying drawing 3 explanations as follows:
1, air conditioning function: compressor 1 starts; To drive refrigerant flow through high-voltage switch gear 2, four-way change-over valve 3, threeway, threeway, refrigerant unidirectional electrical magnet valve 4.1, threeway, water source side evaporator 6 refrigerant sides, threeway, coolant solo valve 5, threeway, threeway, threeway, coolant solo valve 5, threeway, high pressure reservoir 7, device for drying and filtering 8, expansion valve 9, threeway, coolant solo valve 5, threeway, use side evaporator 10 refrigerant sides, four-way change-over valve 3, gas-liquid separator 11, low tension switch 12, compressor 1; Constitute kind of refrigeration cycle; With using in low level room air heat energy pump to the water source side evaporator of extracting in the side evaporator 10 6, discharge to environmental water systems through its water pump 27 drivings.Circulating pump 17 starts in advance; With drive refrigerating medium flow through non-return valve 18, use that side evaporator 10 refrigerating medium sides, air bleeding valve 14, function threeway 15, warming, air conditioning are terminal 19, filter 20, triple valve group 16, circulating pump 17; Constitute the air-conditioning circulation, to flow to terminal 19 systems of warming, air conditioning to the evaporation colds in the use side evaporator 10.
2, heating function: compressor 1 starts; With drive refrigerant flow through high-voltage switch gear 2, four-way change-over valve 3, use side evaporator 10 refrigerant sides, threeway, coolant solo valve 5, threeway, high pressure reservoir 7, device for drying and filtering 8, expansion valve 9, threeway, coolant solo valve 5, threeway, threeway, threeway, refrigerant unidirectional electrical magnet valve 4.1, threeway, water source side evaporator 6 refrigerant sides, threeway, coolant solo valve 5, threeway, threeway, four-way change-over valve 3, gas-liquid separator 11, low tension switch 12, compressor 1, constitute heat pump cycle; With the low level water source heat energy pump of gathering in the water source side evaporator 6 to using in the side evaporator 10.Circulating pump 17 starts in advance; With drive refrigerating medium flow through non-return valve 18, use that side evaporator 10 refrigerating medium sides, air bleeding valve 14, function threeway 15, warming, air conditioning are terminal 19, filter 20, triple valve group 16, circulating pump 17; Constitute the heating circulation, to flow to terminal 19 systems of warming, air conditioning to the high-order condensation heat releases in the use side evaporator 10.
3, hot water function: compressor 1 starts; With drive refrigerant flow through high-voltage switch gear 2, four-way change-over valve 3, use side evaporator 10 refrigerant sides, threeway, coolant solo valve 5, threeway, high pressure reservoir 7, device for drying and filtering 8, expansion valve 9, threeway, coolant solo valve 5, threeway, threeway, threeway, refrigerant unidirectional electrical magnet valve 4.1, threeway, water source side evaporator 6 refrigerant sides, threeway, coolant solo valve 5, threeway, threeway, four-way change-over valve 3, gas-liquid separator 11, low tension switch 12, compressor 1, constitute heat pump cycle; With the low level water source heat energy pump of gathering in the water source side evaporator 6 to using in the side evaporator 10.Circulating pump 17 starts in advance; With drive refrigerating medium flow through non-return valve 18, use side evaporator 10 refrigerating medium sides, air bleeding valve 14, function threeway 15, outlet threeway 23, boiler 24, moisturizing threeway 25, filter 20, import threeway 21, triple valve group 16, circulating pump 17; Constitute hot water circuit, to flow to boiler 24 to the high-order condensation heat releases in the use side evaporator 10.
4, air-conditioning+hot water function: compressor 1 starts; To drive refrigerant flow through high-voltage switch gear 2, four-way change-over valve 3, threeway, refrigerant unidirectional electrical magnet valve 4.1, hot water condenser 13 refrigerant sides, coolant solo valve 5, threeway, threeway, coolant solo valve 5, threeway, high pressure reservoir 7, device for drying and filtering 8, expansion valve 9, threeway, coolant solo valve 5, threeway, use side evaporator 10 refrigerant sides, four-way change-over valve 3, gas-liquid separator 11, low tension switch 12, compressor 1; Constitute kind of refrigeration cycle; With using the low level room air heat energy pump that extracts in the side evaporator 10 to hot water condenser 13, discharge to circulating hot water through the hot water circulating pump driving.
Circulating pump 17 starts in advance; With drive refrigerating medium flow through non-return valve 18, use that side evaporator 10 refrigerating medium sides, air bleeding valve 14, function threeway 15, warming, air conditioning are terminal 19, filter 20, triple valve group 16, circulating pump 17; Constitute the air-conditioning circulation, to flow to terminal 19 systems of warming, air conditioning to the evaporation colds in the use side evaporator 10.Hot water circulating pump 22 starts in advance; To drive flow of hot water through non-return valve 18, hot water condenser 13 hot water sides, air bleeding valve 14, outlet threeway 23, boiler 24, moisturizing threeway 25, filter 20, import threeway 21, hot water circulating pump 22; Constitute hot water circuit, to flow to boiler 24 to the high-order condensation heat release in the hot water condenser 13.
Compared with prior art, design feature of the present invention is following:
1, when heating and hot water function: the coolant solo valve 5 of hot water condenser 13 refrigerant side liquid pipes stops liquid refrigerants to flow to it; The refrigerant unidirectional electrical magnet valve 4.1 of its refrigerant side tracheae is closed simultaneously; To avoid the suction of refrigerant in 1 pair of hot water condenser 13 of compressor; Therefore just can guarantee that hot water condenser 13 and operating heat pump cycle are independent of each other, thereby guarantee to realize stable heating and hot water function;
2, during air conditioning function: the coolant solo valve 5 of hot water condenser 13 refrigerant side liquid pipes stops liquid refrigerants to flow to it; The refrigerant unidirectional electrical magnet valve 4.1 of its refrigerant side tracheae is closed simultaneously; Exhaust to avoid compressor 1 is flowed to it; Therefore just can guarantee that hot water condenser 13 and operating kind of refrigeration cycle are independent of each other, thereby guarantee to realize stable air conditioning function;
3, during air-conditioning+hot water function: the closed condition refrigerant unidirectional electrical magnet valve 4.1 of parallel connection in the water source side evaporator 6 refrigerant side liquid pipes flows to it with the coolant solo valve 5 common liquid refrigerants that stop; The closed condition refrigerant unidirectional electrical magnet valve 4.1 of parallel connection flows to it with the exhaust of coolant solo valve 5 common prevention compressors 1 in its refrigerant side tracheae simultaneously; Therefore just can guarantee that water source side evaporator 6 and operating kind of refrigeration cycle are independent of each other, thereby guarantee to realize stable air-conditioning+hot water function.
Therefore compared with prior art, technical advantage of the present invention is following:
The present invention only adopts 2 refrigerant magnetic valves and coolant solo valve combination; Solve the heat exchanger that switched that needs 6 to 8 refrigerant magnetic valves to solve in the existing water source three-way set technology and constantly accumulate the hidden danger that heat pump cycle that cooling medium liquid causes lacks fluorine gradually; Fundamentally avoid refrigerant in the circulation of being switched between heat exchanger and the heat pump cycle; Make up the water source heating air conditioner water heating machine that to realize long-term self-stabilization operation; Thereby, realize 4 kinds of functions such as heating, air-conditioning, hot water, air-conditioning+hot water with the mode that structure is simpler, cost is cheaper, operation is more reliable, efficient more improves.
(4) description of drawings
Accompanying drawing 2 carries out the system flow chart of function control for the present invention adopts refrigerant bidirectional electromagnetic valve 4.2 and refrigerant unidirectional electrical magnet valve 4.1.
Accompanying drawing 3 carries out the system flow chart of function control for the present invention adopts refrigerant unidirectional electrical magnet valve 4.1 and coolant solo valve 5.
(5) specific embodiment
The embodiment of the water source heating air conditioner water heating machine that the present invention proposes shown in accompanying drawing 3, existing explanation as follows: it is connected refrigerant unidirectional electrical magnet valve 4.1 and coolant solo valve 5 (the direction sensing water source side evaporator 6 of the in the opposite direction and refrigerant unidirectional electrical magnet valve 4.1 of two valves), the heat exchange area 1.5m of high-voltage switch gear 2, four-way change-over valve 3, threeway, parallel connection in order through diameter 20mm copper pipe by the vortex compressor 1 of electrical power 4.0kW
2The board-like water source of copper brazing side evaporator 6 refrigerant sides in the diameter 20mm import of R22, its diameter 10mm outlet 3 raises and presses reservoirs 7, device for drying and filtering 8, electric expansion valve 9, heat exchange area 1.5m through what copper pipe connected in order that coolant solo valve 5 that refrigerant unidirectional electrical magnet valve 4.1 and coolant solo valve 5 (two valves in the opposite direction and direction refrigerant unidirectional electrical magnet valve 4.1 point to water source side evaporator 6), the threeway of the parallel connection of same diameter interface, 4 bridge-types arrange and middle is connected in series again
2The board-like use side of copper brazing evaporator 10R22 side diameter 10mm import; Its diameter 20mm outlet connects four-way change-over valve 3, gas-liquid separator 11, low tension switch 12, the compressor 1 of same diameter interface more in order through copper pipe, form the air-water heat pump circuit; Heat exchange area 1.5m
2Refrigerant unidirectional electrical magnet valve 4.1 (its direction point to hot water condenser 13) and the threeway of coolant solo valve 5 (its direction deviate from hot water condenser 13) and the P22 side diameter 20mm copper air pipe interface thereof of the board-like hot water condenser of copper brazing 13R22 side diameter 10mm copper liquid interface tube through the same diameter interface through the same diameter interface; Be in parallel with the control branch road of water source side evaporator 6 refrigerant sides, to form the water-water heat pump branch road; Use side evaporator 10 refrigerating medium side outlets through diameter 24mm outlet steel pipe be connected in series air bleeding valve 14, function threeway 15, its import is through diameter 24mm steel pipe be connected in series electric three passes ball valve 16, flow 2m
3/ h, lift 14mH
2The circulating pump 17 of O, non-return valve 18 are to form the cold/heat supply handoff leg; Function threeway 15 forms terminal 19 branch roads of warming, air conditioning through diameter 24mm steel pipe be connected in parallel fan coil 19, filter 20, the electric three passes ball valve 16 of 5 complete hot cold 3.7kW/ heating load 6.3kW; Import threeway 21 is through diameter 24mm steel pipe connection traffic 2m
3/ h, lift 14mH
2The hot water circulating pump 22 of O, non-return valve 18, hot water condenser 13 hot water sides, air bleeding valve 14, outlet threeway 23 form the hot water branch road; Function threeway 15 connects 23,1 thick 1.2mm corrosion resistant plate of outlet threeway through diameter 24mm steel pipe processes/boiler 24 of the long 800mm of diameter 300mm/, moisturizing threeway 25, filter 20, import threeway 21, electric three passes ball valve 16, and formation boiler 24 hot water branch roads; Diameter 15mm goes up the water steel pipe through filter 20, low tension switch 12, non-return valve 18, draining safety valve 26, forms moisturizing, level pressure branch road.Water source side evaporator 6 is set up its flow 2m
3The driving water pump 27 of/h, electrical power 160W.The diameter 15mm hot water fairlead of boiler 24 is provided with diameter 15mm, stainless steel water way solenoid valve 28, and by the diameter 15mm low tension switch that is provided with on diameter 15mm moisturizing, the level pressure branch road 12 controls.
The embodiment of the invention during 45 ℃ of periodical feeding temperature, can realize that heating/hot water heats power 14.3kW under the hydrologic condition of 18 ℃ of water source temperature; Total input electric power 4.40kW; Heat pump heat supply coefficient 3.25 is apart from unit 1m place operation noise 59dB, operating weight 145kg; When 7 ℃ of circulation cooling coolant-temperature gages, during 45 ℃ of circulation heating coolant-temperature gages, can realize air conditioner refrigerating power 12.45kW simultaneously, hot water heats power 16.20kW, total input electric power 4.06kW, air-conditioning+hot-water combined supplying coefficient 7.06 of this moment.
Claims (6)
1. water source heating air conditioner water heating machine, it is by compressor (1); High-voltage switch gear (2); Four-way change-over valve (3); Refrigerant bidirectional electromagnetic valve (4.2); Refrigerant three-way magnetic valve (4.3); Coolant solo valve (5); Water source side evaporator (6); High pressure reservoir (7); Device for drying and filtering (8); Expansion valve (9); Use side evaporator (10); Gas-liquid separator (11); Low tension switch (12); Hot water condenser (13); Air bleeding valve (14); Function threeway (15); Triple valve group (16); Circulating pump (17); Non-return valve (18); Warming, air conditioning terminal (19); Filter (20); Import threeway (21); Hot water circulating pump (22); Outlet threeway (23); Boiler (24); Moisturizing threeway (25); Draining safety valve (26); Water pump (27); Waterway electromagnetic valve (28).It is characterized in that: the coolant solo valve (5) of compressor (1), high-voltage switch gear (2), four-way change-over valve (3), refrigerant three-way magnetic valve (4.3) (direction is pointed to water source side evaporator (6)), water source side evaporator (6) refrigerant side, refrigerant bidirectional electromagnetic valve (4.2), threeway, 4 bridge-type layouts and the middle high pressure reservoir (7) that is connected in series thereof, device for drying and filtering (8), expansion valve (9), use side evaporator (10) refrigerant side, four-way change-over valve (3), gas-liquid separator (11), low tension switch (12), compressor (1), form the air-water heat pump circuit; Hot water condenser (13) refrigerant side liquid interface tube passes through refrigerant three-way magnetic valve (4.3) (its direction is pointed to hot water condenser (13)) through coolant solo valve (5) (its direction deviates from hot water condenser (13)) and refrigerant side air pipe interface thereof; Be in parallel with the control branch road of water source side evaporator (6) refrigerant side, to form the water-water heat pump branch road; Use side evaporator (10) refrigerating medium side outlet through pipeline be connected in series air bleeding valve (14), function threeway (15), its import is through pipeline be connected in series triple valve group (16), circulating pump (17), non-return valve (18), to form the cold/heat supply handoff leg; Function threeway (15) connects warming, air conditioning terminal (19), filter (20), triple valve group (16) through pipeline, forms terminal (19) branch road of warming, air conditioning; Import threeway (21) connects hot water circulating pump (22), non-return valve (18), hot water condenser (13) hot water side, air bleeding valve (14), outlet threeway (23) through pipeline, forms the hot water branch road; Function threeway (15) connects outlet threeway (23), boiler (24), moisturizing threeway (25), filter (20), import threeway (21), triple valve group (16) through pipeline, forms boiler (24) hot water branch road; Upper hose forms moisturizing, level pressure branch road through filter (20), low tension switch (12), non-return valve (18), draining safety valve (26); Water source side evaporator (6) is set up it and is driven water pump (27); The hot water fairlead of boiler (24) is provided with waterway electromagnetic valve (28), and by low tension switch (12) control that is provided with on moisturizing, the level pressure branch road.
2. according to the described water source heating air conditioner water heating machine of claim 1; It is characterized in that: refrigerant three-way magnetic valve (4.3) is 1 refrigerant three-way magnetic valve (4.3), or is connected with 1 refrigerant unidirectional electrical magnet valve (4.1) and 1 threeway by 1 refrigerant bidirectional electromagnetic valve (4.2) and forms.
3. according to the described water source heating air conditioner water heating machine of claim 1; It is characterized in that: refrigerant bidirectional electromagnetic valve (4.2) is 1 refrigerant bidirectional electromagnetic valve (4.2), or is connected to form by 1 refrigerant unidirectional electrical magnet valve (4.1) and 1 coolant solo valve (5) and 2 threeway reverse parallel connections.
4. according to the described water source heating air conditioner water heating machine of claim 1, it is characterized in that: expansion valve (9) is electric expansion valve (9), heating power expansion valve (9), capillary (9), restricting orifice (9), or mutual series, parallel structure therebetween.
5. according to the described water source heating air conditioner water heating machine of claim 1, it is characterized in that: triple valve group (16) is 1 triple valve (16), or is connected by 2 two-port valves and 1 threeway and forms.
6. according to the described water source heating air conditioner water heating machine of claim 1, it is characterized in that: using side evaporator (10) and hot water condenser (13) is the heat exchanger between refrigerant such as shell and tube exchanger, plate type heat exchanger, plate-fin heat exchanger, double pipe heat exchanger, coil exchanger and refrigerating medium or the hot water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101852762A CN102721235A (en) | 2012-05-19 | 2012-05-19 | Water source heating and air conditioning water heater |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101852762A CN102721235A (en) | 2012-05-19 | 2012-05-19 | Water source heating and air conditioning water heater |
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| CN102721235A true CN102721235A (en) | 2012-10-10 |
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ID=46947064
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101852762A Pending CN102721235A (en) | 2012-05-19 | 2012-05-19 | Water source heating and air conditioning water heater |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307674A (en) * | 2013-05-22 | 2013-09-18 | 上海交通大学 | Heat pump air-conditioning system combining air source heat pump with small temperature difference heat exchange tail end |
| CN106766340A (en) * | 2017-03-24 | 2017-05-31 | 合肥天鹅制冷科技有限公司 | Double-source heat pump hot water machine |
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| KR100665744B1 (en) * | 2005-12-30 | 2007-01-10 | 위니아만도 주식회사 | Heat-pump air-conditioner |
| CN201772675U (en) * | 2010-07-15 | 2011-03-23 | 同方人工环境有限公司 | Air-conditioning heat pump ventilation unit provided with functions of refrigeration, heating, domestic hot water and fresh air |
| CN202869073U (en) * | 2012-05-19 | 2013-04-10 | 合肥天鹅制冷科技有限公司 | Water source heating, air conditioning and water heating machine |
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| CN1825031A (en) * | 2005-02-25 | 2006-08-30 | Cne株式会社 | Air conditioning and heating system with cold and warm gas operating simultaneously utilizing geothermal heat, and controlling means thereof |
| KR100665744B1 (en) * | 2005-12-30 | 2007-01-10 | 위니아만도 주식회사 | Heat-pump air-conditioner |
| CN201772675U (en) * | 2010-07-15 | 2011-03-23 | 同方人工环境有限公司 | Air-conditioning heat pump ventilation unit provided with functions of refrigeration, heating, domestic hot water and fresh air |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307674A (en) * | 2013-05-22 | 2013-09-18 | 上海交通大学 | Heat pump air-conditioning system combining air source heat pump with small temperature difference heat exchange tail end |
| CN103307674B (en) * | 2013-05-22 | 2016-06-01 | 上海交通大学 | Air source heat pump is in conjunction with the heat pump type air conditioning system of little temperature difference heat exchange end |
| CN106766340A (en) * | 2017-03-24 | 2017-05-31 | 合肥天鹅制冷科技有限公司 | Double-source heat pump hot water machine |
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Application publication date: 20121010 |