CN101788206A - Outdoor double heat exchanger defrosting low-temperature heating system - Google Patents
Outdoor double heat exchanger defrosting low-temperature heating system Download PDFInfo
- Publication number
- CN101788206A CN101788206A CN201010113352A CN201010113352A CN101788206A CN 101788206 A CN101788206 A CN 101788206A CN 201010113352 A CN201010113352 A CN 201010113352A CN 201010113352 A CN201010113352 A CN 201010113352A CN 101788206 A CN101788206 A CN 101788206A
- Authority
- CN
- China
- Prior art keywords
- valve
- heat exchanger
- way change
- magnetic valve
- outdoor heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 39
- 238000010257 thawing Methods 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 62
- 239000007788 liquid Substances 0.000 claims description 52
- 238000004378 air conditioning Methods 0.000 claims description 17
- 230000007306 turnover Effects 0.000 claims description 10
- 230000008676 import Effects 0.000 claims description 3
- 239000003507 refrigerant Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 238000005057 refrigeration Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 230000005494 condensation Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004781 supercooling Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005373 pervaporation Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
Images
Abstract
The invention relates to an outdoor double heat exchanger defrosting low-temperature heating system, which comprises a compressor (1), four-way reversing valves, an outdoor heat exchanger, a throttling device and an indoor heat exchanger (11). The outdoor heat exchanger is divided into two parts, namely a first outdoor heat exchanger (6) and a second outdoor heat exchanger (7) respectively. One end of the first outdoor heat exchanger (6) and one end of the second outdoor heat exchanger (7) are connected together through the throttling device (9) and an electromagnetic valve (8); and the other ends of the first outdoor heat exchanger (6) and the second outdoor heat exchanger (7) are respectively connected with an air pipe E or C at any one end of two four-way reversing valves; and an inlet/outlet pipe of the throttling device (9) is connected with an inlet/outlet pipe of the electromagnetic valve (8). The outdoor heat exchanger is divided into two parts; the two outdoor heat exchangers alternatively defrost, are used as an evaporator and a condenser in turn, and can still provide heat for the indoor heat exchanger during defrosting. During heating at low temperature, the outdoor heat exchanger B is used as the condenser to heat the inlet air and the inlet air temperature outdoors is raised. Therefore, the coefficient of performance and the heating capacity are effectively improved.
Description
Technical field
The invention belongs to refrigeration heat energy technical field, particularly relate to a kind of outdoor double heat exchanger defrosting low-temperature heating system.
Background technology
The defrost of source pump and low-temperature heating problem are perplexing many manufacturing firms always, are restricting the popularization and the range of application of heat pump air conditioner, Teat pump boiler and air conditioner and water heater.At present generally adopt reverse defrost of cross valve and hot-gas bypass defrost, the shortcoming of the reverse defrost of cross valve: can be from indoor or hot water draw heat, stop heat supply, influence indoor or hot water temperature, room temperature or hot water temperature are fluctuateed bigger, comfortableness is relatively poor; High-low pressure fluctuation is bigger during defrost, impacts bigger to compressor, cross valve; The heat that the overwhelming majority relies on the power of compressor consumption to produce carries out defrost, and it is bigger to consume energy.The shortcoming of hot-gas bypass defrost: condensation of refrigerant becomes liquid after the defrost, does not just directly enter gas-liquid separator through pervaporation, returns compressor then, easily compressor is caused liquid hammer; Rely on the heat of the power generation of compressor consumption to carry out defrost, it is bigger to consume energy, and the defrost time is longer, needs strict control defrost periods and time.When winter temperature is low, the frequent defrost of unit, actual heating effect is undesirable, and the coefficient of performance is lower.
In addition, source pump heating effect when low temperature is very poor, and winter is all right in the areas to the south, the Changjiang river, and substantially without heat pump, range of application is less to the north of the Yellow River.The producer that has at present adopts air compensating system, but air supply compressor only just has in the customization of compressor producer, and range of application is less, and the heating capacity of air compensating system only increases about 10～20%.Be exactly to adopt subcooler system or hydrojet cooling system in addition, heating capacity only increases about 5～10%.
Summary of the invention
Technical problem to be solved by this invention provides a kind of outdoor double heat exchanger defrosting low-temperature heating system, and two outdoor heat exchangers replace defrost, in turn as evaporimeter and condenser, and still can be during defrost to the indoor set heat supply; When low-temperature heating, outdoor heat exchanger B heats air intake as condenser, improves outdoor EAT, increases degree of supercooling, and simultaneously all right defrost makes full use of condensation heat.When high temperature freezed, outdoor heat exchanger B was cooled off air intake as evaporimeter, reduced outdoor EAT, increased degree of supercooling simultaneously.Effectively improve the coefficient of performance (Energy Efficiency Ratio) and heat (cold) amount, solve the fragile problem of heat pump compressor, and comfortableness is better.
The technical solution adopted for the present invention to solve the technical problems is: a kind of outdoor double heat exchanger defrosting low-temperature heating system is provided, comprise compressor, first outdoor heat exchanger, second outdoor heat exchanger, first throttle device, second throttling arrangement, the turnover pipe of described first throttle device and the 3rd magnetic valve connects together, and has common turnover pipe; One end of first outdoor heat exchanger and an end of second outdoor heat exchanger connect the common turnover pipe at first throttle device and the 3rd magnetic valve two ends respectively; First outdoor heat exchanger and the second outdoor heat exchanger other end link to each other with the arbitrary end tracheae E or the C of four-way change-over valve respectively, or are connected with C with the two ends tracheae E of same four-way change-over valve.
Described second outdoor heat exchanger is arranged in the inlet side, air earlier by behind second outdoor heat exchanger again through first outdoor heat exchanger; First outdoor heat exchanger and second outdoor heat exchanger are overall structure, or branch is arranged.
Described system is a heat pump type air conditioner system, comprise first four-way change-over valve, second four-way change-over valve, indoor heat exchanger, second throttling arrangement, the D end of described first four-way change-over valve, second four-way change-over valve also links to each other with compressor exhaust pipe together, the S end of first four-way change-over valve, second four-way change-over valve also together, link to each other with the compressor return air pipe by vapour liquid separator, two four-way change-over valves are relation in parallel; First outdoor heat exchanger links to each other with an end tracheae C of the first cross valve reversal valve, the second cross valve reversal valve respectively with the second outdoor heat exchanger other end; The air inlet pipe of indoor heat exchanger links to each other with the first cross valve reversal valve, the second cross valve reversal valve other end tracheae E by first magnetic valve, second magnetic valve; Described first magnetic valve, second magnetic valve can replace with a two-position three-way valve.
The D end of described second four-way change-over valve links to each other by the liquid pipe of the 4th magnetic valve and indoor heat exchanger, and the second four-way change-over valve two ends tracheae E is connected with first outdoor heat exchanger, second outdoor heat exchanger respectively with C; One end tracheae E of the first cross valve reversal valve is connected with indoor heat exchanger, and the S end of the other end tracheae C and second four-way change-over valve is connected; The 4th magnetic valve and the second throttling arrangement parallel connection; When described second throttling arrangement was electric expansion valve, node b can be connected with C, disconnected between node a, the b simultaneously.
The S end and an end tracheae C of described second four-way change-over valve link together by the 5th magnetic valve, and the second four-way change-over valve two ends tracheae E is connected with first outdoor heat exchanger, second outdoor heat exchanger respectively with C; Second throttling arrangement, one end is connected by the liquid pipe of the 6th magnetic valve and indoor heat exchanger, and the other end is connected with the common ends of first throttle device and the 3rd magnetic valve; Described the 4th magnetic valve, four or six magnetic valves can replace with a two-position three-way valve; When described second throttling arrangement was electric expansion valve, the 6th magnetic valve can remove.
Described system is a heat pump water heater system, comprise hot water heat exchanger, second four-way change-over valve and second throttling arrangement, it is characterized in that: import connects together and links to each other with the blast pipe of compressor the D of described second four-way change-over valve end with hot water heat exchanger by the 4th magnetic valve; The S end and the tracheae C of first four-way change-over valve couple together by the 7th magnetic valve; The second four-way change-over valve two ends tracheae E is connected with first outdoor heat exchanger, second outdoor heat exchanger respectively with C; After the 8th magnetic valve and the second throttling arrangement parallel connection, an end links to each other with hot water heat exchanger liquid pipe, and the other end is connected with the common ends of first throttle device and the 3rd magnetic valve.
The D end of described second four-way change-over valve links to each other by the liquid pipe of the 4th magnetic valve and hot water heat exchanger, and the second four-way change-over valve two ends tracheae E is connected with first outdoor heat exchanger, second outdoor heat exchanger respectively with C; The 4th magnetic valve and the second throttling arrangement parallel connection; When described second throttling arrangement was electric expansion valve, node b can be connected with C, disconnected between node a, the b simultaneously.
The S end and the tracheae C of described second four-way change-over valve link together by the 7th magnetic valve, and the second four-way change-over valve two ends tracheae E is connected with first outdoor heat exchanger, second outdoor heat exchanger respectively with C; Second throttling arrangement, one end is connected by the liquid pipe of the 6th magnetic valve and hot water heat exchanger, and the other end is connected with the common ends of first throttle device and the 3rd magnetic valve; Described the 4th magnetic valve, the 6th magnetic valve can replace with a two-position three-way valve; When described second throttling arrangement was electric expansion valve, the 6th magnetic valve can remove.
Described system is an air-conditioning water heater system, comprise first four-way change-over valve, second four-way change-over valve, indoor heat exchanger, hot water heat exchanger, the 3rd throttling arrangement, the 4th throttling arrangement, the 5th throttling arrangement, the D end of described first four-way change-over valve, second four-way change-over valve also links to each other with compressor exhaust pipe together, the S end of first four-way change-over valve, second four-way change-over valve also together, link to each other with the compressor return air pipe by vapour liquid separator, two four-way change-over valves are relation in parallel; First outdoor heat exchanger links to each other with an end tracheae C of the first cross valve reversal valve, the second cross valve reversal valve respectively with the second outdoor heat exchanger other end; The air inlet pipe of indoor heat exchanger links to each other with the first cross valve reversal valve, the second cross valve reversal valve other end tracheae E by first magnetic valve, second magnetic valve; After the turnover pipe of the 3rd throttling arrangement and the 9th magnetic valve connects together, the liquid pipe of a termination indoor heat exchanger, the other end is connected with the common ends of first throttle device and the 3rd magnetic valve; The liquid pipe of the 4th throttling arrangement one termination indoor heat exchanger, the liquid pipe of another termination hot water heat exchanger; The liquid pipe of the 5th throttling arrangement one termination hot water heat exchanger, the other end is connected with the common ends of first throttle device and the 3rd magnetic valve; Described first magnetic valve, second magnetic valve can replace with a two-position three-way valve.
The D end of second four-way change-over valve links to each other by the liquid pipe of the 4th magnetic valve, the tenth magnetic valve and indoor heat exchanger, and the second four-way change-over valve two ends tracheae E is connected with first outdoor heat exchanger, second outdoor heat exchanger respectively with C; One end tracheae E of the first cross valve reversal valve is connected with indoor heat exchanger, and the S end of the other end tracheae C and second four-way change-over valve is connected; After the 4th magnetic valve and the second throttling arrangement parallel connection, an end is connected by the liquid pipe of the tenth magnetic valve and indoor heat exchanger, and the D end of the other end and second four-way change-over valve is connected; After the 11 magnetic valve and the 4th throttling arrangement parallel connection, an end is connected by the liquid pipe of the tenth magnetic valve and indoor heat exchanger, and the liquid pipe of the other end and hot water heat exchanger is connected.
Described each throttling arrangement can be capillary, heating power expansion valve, and electric expansion valve, during for electric expansion valve, the magnetic valve of its corresponding series connection does not need; The C of described each four-way change-over valve end and E end can exchange, and get by the control four-way change-over valve and electricly realize with dead electricity; Between described compressor exhaust pipe and the muffler oil eliminator is housed, or on the muffler of compressor gas-liquid separator is housed, or on the heat exchanger liquid pipe reservoir annex is housed.
Described indoor heat exchanger and hot water heat exchanger can be separate type or monoblock type, and separate type connects by refrigerant tubing or waterpipe, and monoblock type is placed on unit inside; Described indoor heat exchanger is hot and cold water type or cold and hot wind type; Described compressor and indoor heat exchanger can be at least 2 parallel connections, and each indoor heat exchanger all is with an electric expansion valve.
Beneficial effect
Technical problem to be solved by this invention provides a kind of outdoor double heat exchanger defrosting low-temperature heating system, and two outdoor heat exchangers replace defrost, in turn as evaporimeter and condenser, and still can be during defrost to the indoor set heat supply; When low-temperature heating, outdoor heat exchanger B heats air intake as condenser, improves outdoor EAT.And can be when high temperature to freeze, outdoor heat exchanger B can be used as evaporimeter air intake is cooled off, and reduces outdoor EAT.The protection compressor improves the room comfortableness simultaneously, keeps the constant of hot water temperature, improves the coefficient of performance and heating capacity, and heating capacity increases about more than 20%, and the coefficient of performance improves about 20 ~ 50% during low temperature.
Description of drawings
Fig. 1 heat pump air-conditioning system one;
Fig. 2 heat pump air-conditioning system two;
Fig. 3 heat pump air-conditioning system three;
Fig. 4 heat pump water heater system one;
Fig. 5 heat pump water heater system two;
Fig. 6 heat pump water heater system three;
Fig. 7 air-conditioning water heater system one;
Fig. 8 air-conditioning water heater system two.
The specific embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment only to be used to the present invention is described and be not used in and limit the scope of the invention.Should be understood that in addition those skilled in the art can make various changes or modifications the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Air-conditioning system as shown in Figure 1, comprise compressor 1, first four-way change-over valve 2, second four-way change-over valve 3, first outdoor heat exchanger 6, second outdoor heat exchanger 7, first throttle device 9, second throttling arrangement 10, indoor heat exchanger 11, first magnetic valve 4 and second magnetic valve 5, the exhaust of compressor 1 flow to the D end of first four-way change-over valve 2 and second four-way change-over valve 3 respectively; One end of one end of first outdoor heat exchanger 6 and second outdoor heat exchanger 7 connects the common turnover pipe at first throttle device 9 and the 3rd magnetic valve 8 two ends respectively; First outdoor heat exchanger 6 links to each other with the arbitrary end tracheae E or the C of the first cross valve reversal valve 2, the second cross valve reversal valve 3 respectively with second outdoor heat exchanger, 7 other ends; The air inlet pipe of indoor heat exchanger 11 links to each other with the first cross valve reversal valve 2, the second cross valve reversal valve, 3 tracheae E respectively by first magnetic valve 4, second magnetic valve 5; The S end of the first cross valve reversal valve 2 and the second cross valve reversal valve 3 links together, and first and second cross valve reversal valve is a relation in parallel; Described first magnetic valve 4, second magnetic valve 5 can replace with a two-position three-way valve.Valve control and flow process with each circulation illustrates below.
Normal kind of refrigeration cycle:
Magnetic valve 5, magnetic valve 8 are opened, and magnetic valve 4 cuts out; The D of four-way change-over valve 2 and four-way change-over valve 3 links to each other with C, and E links to each other with S, and throttling arrangement 10 works.
The high temperature kind of refrigeration cycle:
Magnetic valve 5 is opened, and magnetic valve 4, magnetic valve 8 are closed; The D of four-way change-over valve 2 links to each other with E, and C links to each other with S; The D of four-way change-over valve 3 links to each other with C, and E links to each other with S; Throttling arrangement 9 and throttling arrangement 10 work.
Normally heat circulation:
Magnetic valve 5, magnetic valve 8 are opened, and magnetic valve 4 cuts out; The D of four-way change-over valve 2 and four-way change-over valve 3 links to each other with E, and C links to each other with S; Throttling arrangement 10 works.
Low-temperature heating circulation and defrost circulation 2:
Magnetic valve 5 is opened, and magnetic valve 4, magnetic valve 8 are closed; The D of four-way change-over valve 2 links to each other with C, and E links to each other with S; The D of four-way change-over valve 3 links to each other with E, and C links to each other with S; Throttling arrangement 9 and throttling arrangement 10 work.
Defrost circulation 1:
Magnetic valve 4 is opened, and magnetic valve 5, magnetic valve 8 are closed; The D of four-way change-over valve 2 links to each other with E, and C links to each other with S; The D of four-way change-over valve 3 links to each other with C, and E links to each other with S; Throttling arrangement 9 works.
Air-conditioning system as shown in Figure 2, the D end of the blast pipe of compressor 1 and the first cross valve reversal valve 2 is connected, and an end tracheae E of the first cross valve reversal valve 2 is connected with indoor heat exchanger 11, and the S end of the other end tracheae C and second four-way change-over valve 3 is connected; Second four-way change-over valve, 3 two ends tracheae E are connected with first outdoor heat exchanger 6, second outdoor heat exchanger 7 respectively with C; Between the liquid pipe of the D of second four-way change-over valve 3 end and indoor heat exchanger 11, second throttling arrangement 10, the 4th magnetic valve 12, the four magnetic valves 12 and 10 parallel connections of second throttling arrangement are arranged; When described second throttling arrangement 10 was electric expansion valve, node b can be connected with C, disconnected between node a, the b simultaneously.Valve control and flow process with each circulation illustrates below.
Normal kind of refrigeration cycle:
The high temperature kind of refrigeration cycle:
Normally heat circulation:
Low-temperature heating circulation and defrost circulation 2:
Defrost circulation 1:
Air-conditioning system as shown in Figure 3, the D end of the blast pipe of compressor 1 and the first cross valve reversal valve 2 is connected, and an end tracheae E of the first cross valve reversal valve 2 is connected with indoor heat exchanger 11, and the S end of the other end tracheae C and second four-way change-over valve 3 is connected; Second four-way change-over valve 3 two ends tracheae E in addition is connected with first outdoor heat exchanger 6, second outdoor heat exchanger 7 respectively with C; Between the liquid pipe of the D of second four-way change-over valve 3 end and indoor heat exchanger 11, the 4th magnetic valve 12 is arranged; The S end of second four-way change-over valve 3 and arbitrary end tracheae E or C link together by the 5th magnetic valve 17; Second throttling arrangement, 10 1 ends are connected by the liquid pipe of the 6th magnetic valve 16 and indoor heat exchanger 11, and the other end is connected with the common ends of first throttle device 9 and the 3rd magnetic valve 8; Described the 4th magnetic valve 12, the 6th magnetic valve 16 can replace with a two-position three-way valve; When described second throttling arrangement 10 was electric expansion valve, the 6th magnetic valve 16 can remove.Valve control and flow process with each circulation illustrates below.
Normal kind of refrigeration cycle:
The high temperature kind of refrigeration cycle:
Normally heat circulation:
Low-temperature heating circulation and defrost circulation 2:
Defrost circulation 1:
Embodiment 4 heat pump water heater systems one
Heat pump water heater system as shown in Figure 4, the D end that contains hot water heat exchanger 14, second four-way change-over valve 3 connects together by the 4th magnetic valve 12 and hot water heat exchanger 14 imports, links to each other with the blast pipe of compressor 1; The S end and an end tracheae C of second four-way change-over valve 3 couple together by the 7th magnetic valve 13; Second four-way change-over valve, 3 two ends tracheae E are connected with first outdoor heat exchanger 6, second outdoor heat exchanger 7 respectively with C; After the 8th magnetic valve 15 and 10 parallel connections of second throttling arrangement, an end links to each other with hot water heat exchanger 14 liquid pipes, and the other end is connected with the common ends of first throttle device 9 and the 3rd magnetic valve 8.Valve control and flow process with each circulation illustrates below.
Nominal situation heats the water circulation:
Low-temperature heating circulation and defrost circulation 2:
Defrost circulation 1:
Embodiment 5 heat pump water heater systems two
Heat pump water heater system as shown in Figure 5, the D end of second four-way change-over valve 3 links to each other by the liquid pipe of the 4th magnetic valve 12 and hot water heat exchanger 14, and second four-way change-over valve, 3 two ends tracheae E are connected with first outdoor heat exchanger 6, second outdoor heat exchanger 7 respectively with C; The 4th magnetic valve 12 and 10 parallel connections of second throttling arrangement; When described second throttling arrangement 10 was electric expansion valve, node b can be connected with C, disconnected between node a, the b simultaneously.Valve control and flow process with each circulation illustrates below.
Nominal situation heats the water circulation:
Low-temperature heating circulation and defrost circulation 2:
Defrost circulation 1:
Heat pump water heater system as shown in Figure 6, the S end and an end tracheae C of second four-way change-over valve 3 link together by the 7th magnetic valve 13, and second four-way change-over valve, 3 two ends tracheae E are connected with first outdoor heat exchanger 6, second outdoor heat exchanger 7 respectively with C; Second throttling arrangement, 10 1 ends are connected by the liquid pipe of the 6th magnetic valve 16 and hot water heat exchanger 14, and the other end is connected with the common ends of first throttle device 9 and the 3rd magnetic valve 8; Described the 4th magnetic valve 12, the 6th magnetic valve 16 can replace with a two-position three-way valve; When described second throttling arrangement 10 was electric expansion valve, the 6th magnetic valve 16 can remove.Valve control and flow process with each circulation illustrates below.
Nominal situation heats the water circulation:
Circulation of low-temperature heating water and defrost circulation 2:
Defrost circulation 1:
Air-conditioning water heater system as shown in Figure 7, contain first four-way change-over valve 2, second four-way change-over valve 3, indoor heat exchanger 11, hot water heat exchanger 14, electric expansion valve 20, first electric expansion valve 22, second electric expansion valve 23, the D end of first four-way change-over valve 2, second four-way change-over valve 3 also links to each other with compressor 1 blast pipe together, the S end of first four-way change-over valve 2, second four-way change-over valve 3 also together, link to each other with compressor 1 muffler by vapour liquid separator, two four-way change-over valves are relation in parallel; One end of first outdoor heat exchanger 6 and second outdoor heat exchanger 7 links to each other with the tracheae C of the first cross valve reversal valve 2, the second cross valve reversal valve 3 respectively; The air inlet pipe of indoor heat exchanger 11 links to each other with the first cross valve reversal valve 2, the second cross valve reversal valve, 3 other end tracheae E by first magnetic valve 4, second magnetic valve 5; After the turnover pipe of the 3rd electric expansion valve 20 and the 9th magnetic valve 19 connects together, the liquid pipe of a termination indoor heat exchanger 11, the other end is connected with the common ends of the 3rd electric expansion valve 29 and the 3rd magnetic valve 8; The liquid pipe of first electric expansion valve, 22 1 termination indoor heat exchangers 11, the liquid pipe of another termination hot water heat exchanger 14; The liquid pipe of second electric expansion valve, 23 1 termination hot water heat exchangers 14, the other end is connected with the common ends of the 3rd electric expansion valve 29 and the 3rd magnetic valve 8; Described first magnetic valve 4, second magnetic valve 5 can replace with a two-position three-way valve.Valve control and flow process with the part circulation illustrates below.
Kind of refrigeration cycle
Magnetic valve 5, magnetic valve 8 are opened, and magnetic valve 4, magnetic valve 19 are closed; Electric expansion valve 9, electric expansion valve 22, electric expansion valve 23 are closed; The D of four-way change-over valve 2, four-way change-over valve 3 links to each other with C, and E links to each other with S; Electric expansion valve 20 works.
Heat circulation
Magnetic valve 5, magnetic valve 8 are opened, and magnetic valve 4, magnetic valve 19 are closed; Electric expansion valve 9, electric expansion valve 22, electric expansion valve 23 are closed; The D of four-way change-over valve 2, four-way change-over valve 3 links to each other with E, and C links to each other with S; Electric expansion valve 20 works.
Heat the water circulation:
The water that freezes+heat circulation:
Magnetic valve 5 is opened, and magnetic valve 4, magnetic valve 8, magnetic valve 19 are closed; Electric expansion valve 9, electric expansion valve 20, electric expansion valve 23 are closed; The D of four-way change-over valve 2, four-way change-over valve 3 links to each other with C, and E links to each other with S; Electric expansion valve 22 works.
Low-temperature heating and defrost circulation 2:
Magnetic valve 5, magnetic valve 19 are opened, and magnetic valve 4, magnetic valve 8 are closed; Electric expansion valve 9, electric expansion valve 20, electric expansion valve 23 are closed; The D of four-way change-over valve 2 links to each other with C, and E links to each other with S, the D of four-way change-over valve 3 links to each other with E, and C links to each other with S; Electric expansion valve 9 works.
Low-temperature heating and defrost circulation 1:
Magnetic valve 4 is opened, and magnetic valve 5, magnetic valve 8, magnetic valve 19 are closed; Electric expansion valve 22, electric expansion valve 23 are closed; The D of four-way change-over valve 2 links to each other with E, and C links to each other with S, the D of four-way change-over valve 3 links to each other with E, and C links to each other with S; Electric expansion valve 9, electric expansion valve 20 work.
Air-conditioning water heater system as shown in Figure 8, the D end of second four-way change-over valve 3 links to each other by the liquid pipe of the 4th magnetic valve 12, the tenth magnetic valve 24 and indoor heat exchanger 11, and second four-way change-over valve, 3 two ends tracheae E are connected with first outdoor heat exchanger 6, second outdoor heat exchanger 7 respectively with C; One end tracheae E of the first cross valve reversal valve 2 is connected with indoor heat exchanger 11, and the S end of the other end tracheae C and second four-way change-over valve 3 is connected; The 4th magnetic valve 12 and 10 parallel connections of second throttling arrangement, an end is connected by the liquid pipe of the tenth magnetic valve 24 and indoor heat exchanger 11, and the D end of the other end and second four-way change-over valve 3 is connected; After the 11 magnetic valve 21 and electric expansion valve 22 parallel connections, an end is connected by the liquid pipe of the tenth magnetic valve 24 and indoor heat exchanger 11, and the liquid pipe of the other end and hot water heat exchanger 14 is connected.Valve control and flow process with the part circulation illustrates below.
Kind of refrigeration cycle
Heat circulation
Heat the water circulation:
The water that freezes+heat circulation:
Low-temperature heating and defrost circulation 2:
Low-temperature heating and defrost circulation 1:
Claims (10)
1. outdoor double heat exchanger defrosting low-temperature heating system, comprise compressor (1), first outdoor heat exchanger (6), second outdoor heat exchanger (7), first throttle device (9), second throttling arrangement (10), it is characterized in that: the turnover pipe of described first throttle device (9) and the 3rd magnetic valve (8) connects together, and has common turnover pipe; One end of one end of first outdoor heat exchanger (6) and second outdoor heat exchanger (7) connects the common turnover pipe at first throttle device (9) and the 3rd magnetic valve (8) two ends respectively; First outdoor heat exchanger (6) and second outdoor heat exchanger (7) other end link to each other with the arbitrary end tracheae E or the C of four-way change-over valve respectively, or are connected with C with the two ends tracheae E of same four-way change-over valve.
2. a kind of outdoor double heat exchanger defrosting low-temperature heating system according to claim 1 is characterized in that: described second outdoor heat exchanger (7) is arranged in the inlet side, air earlier by behind second outdoor heat exchanger (7) again through first outdoor heat exchanger (6); First outdoor heat exchanger (6) and second outdoor heat exchanger (7) are overall structure, or branch is arranged.
3. according to the described a kind of outdoor double heat exchanger defrosting low-temperature heating system of claim 1～2, described system is a heat pump type air conditioner system, comprise first four-way change-over valve (2), second four-way change-over valve (3), indoor heat exchanger (11), second throttling arrangement (10), it is characterized in that: described first four-way change-over valve (2), the D end of second four-way change-over valve (3) also links to each other with compressor (1) blast pipe together, first four-way change-over valve (2), the S end of second four-way change-over valve (3) also together, link to each other with compressor (1) muffler by vapour liquid separator, two four-way change-over valves are relation in parallel; First outdoor heat exchanger (6) links to each other with an end tracheae C of the first cross valve reversal valve (2), the second cross valve reversal valve (3) respectively with second outdoor heat exchanger (7) other end; The air inlet pipe of indoor heat exchanger (11) links to each other with the first cross valve reversal valve (2), second cross valve reversal valve (3) other end tracheae E by first magnetic valve (4), second magnetic valve (5); Described first magnetic valve (4), second magnetic valve (5) can replace with a two-position three-way valve; The D end of described second four-way change-over valve (3) links to each other by the liquid pipe of the 4th magnetic valve (12) and indoor heat exchanger (11), and second four-way change-over valve (3) two ends tracheae E is connected with first outdoor heat exchanger (6), second outdoor heat exchanger (7) respectively with C; One end tracheae E of the first cross valve reversal valve (2) is connected with indoor heat exchanger (11), and the S end of other end tracheae C and second four-way change-over valve (3) is connected; The 4th magnetic valve (12) and second throttling arrangement (10) parallel connection; When described second throttling arrangement (10) was electric expansion valve, node b can be connected with C, disconnected between node a, the b simultaneously.
4. a kind of outdoor double heat exchanger defrosting low-temperature heating system according to claim 3, it is characterized in that: the S end and an end tracheae C of described second four-way change-over valve (3) link together by the 5th magnetic valve (17), and second four-way change-over valve (3) two ends tracheae E is connected with first outdoor heat exchanger (6), second outdoor heat exchanger (7) respectively with C; Second throttling arrangement (10) one ends are connected by the liquid pipe of the 6th magnetic valve (16) and indoor heat exchanger (11), and the other end is connected with the common ends of first throttle device (9) and the 3rd magnetic valve (8); Described the 4th magnetic valve (12), four or six magnetic valves (16) can replace with a two-position three-way valve; When described second throttling arrangement (10) was electric expansion valve, the 6th magnetic valve (16) can remove.
5. according to the described a kind of outdoor double heat exchanger defrosting low-temperature heating system of claim 1～2, described system is a heat pump water heater system, comprise hot water heat exchanger (14), second four-way change-over valve (3) and second throttling arrangement (10), it is characterized in that: the D end of described second four-way change-over valve (3) connects together by the 4th magnetic valve (12) and hot water heat exchanger (14) import, and the blast pipe with compressor (1) links to each other again; The S end and the tracheae C of first four-way change-over valve (3) couple together by the 7th magnetic valve (13); Second four-way change-over valve (3) two ends tracheae E is connected with first outdoor heat exchanger (6), second outdoor heat exchanger (7) respectively with C; After the 8th magnetic valve (15) and second throttling arrangement (10) parallel connection, an end links to each other with hot water heat exchanger (14) liquid pipe, and the other end is connected with the common ends of first throttle device (9) and the 3rd magnetic valve (8); The D end of described second four-way change-over valve (3) links to each other by the liquid pipe of the 4th magnetic valve (12) and hot water heat exchanger (14), and second four-way change-over valve (3) two ends tracheae E is connected with first outdoor heat exchanger (6), second outdoor heat exchanger (7) respectively with C; The 4th magnetic valve (12) and second throttling arrangement (10) parallel connection; When described second throttling arrangement (10) was electric expansion valve, node b can be connected with C, disconnected between node a, the b simultaneously.
6. a kind of outdoor double heat exchanger defrosting low-temperature heating system according to claim 5, it is characterized in that: the S end and the tracheae C of described second four-way change-over valve (3) link together by the 7th magnetic valve (13), and second four-way change-over valve (3) two ends tracheae E is connected with first outdoor heat exchanger (6), second outdoor heat exchanger (7) respectively with C; Second throttling arrangement (10) one ends are connected by the liquid pipe of the 6th magnetic valve (16) and hot water heat exchanger (14), and the other end is connected with the common ends of first throttle device (9) and the 3rd magnetic valve (8); Described the 4th magnetic valve (12), the 6th magnetic valve (16) can replace with a two-position three-way valve; When described second throttling arrangement (10) was electric expansion valve, the 6th magnetic valve (16) can remove.
7. according to the described outdoor double heat exchanger defrosting low-temperature heating system of claim 1～2, it is characterized in that: described system is an air-conditioning water heater system, comprise first four-way change-over valve (2), second four-way change-over valve (3), indoor heat exchanger (11), hot water heat exchanger (14), the 3rd throttling arrangement (20), the 4th throttling arrangement (22), the 5th throttling arrangement (23), it is characterized in that: described first four-way change-over valve (2), the D end of second four-way change-over valve (3) also links to each other with compressor (1) blast pipe together, first four-way change-over valve (2), the S end of second four-way change-over valve (3) also together, link to each other with compressor (1) muffler by vapour liquid separator, two four-way change-over valves are relation in parallel; First outdoor heat exchanger (6) links to each other with an end tracheae C of the first cross valve reversal valve (2), the second cross valve reversal valve (3) respectively with second outdoor heat exchanger (7) other end; The air inlet pipe of indoor heat exchanger (11) links to each other with the first cross valve reversal valve (2), second cross valve reversal valve (3) other end tracheae E by first magnetic valve (4), second magnetic valve (5); After the turnover pipe of the 3rd throttling arrangement (20) and the 9th magnetic valve (19) connects together, the liquid pipe of a termination indoor heat exchanger (11), the other end is connected with the common ends of first throttle device (9) and the 3rd magnetic valve (8); The liquid pipe of the 4th throttling arrangement (22) one termination indoor heat exchangers (11), the liquid pipe of another termination hot water heat exchanger (14); The liquid pipe of the 5th throttling arrangement (23) one termination hot water heat exchangers (14), the other end is connected with the common ends of first throttle device (9) and the 3rd magnetic valve (8); Described first magnetic valve (4), second magnetic valve (5) can replace with a two-position three-way valve.
8. outdoor double heat exchanger defrosting low-temperature heating system according to claim 7, it is characterized in that: the D end of second four-way change-over valve (3) links to each other with the liquid pipe of indoor heat exchanger (11) by the 4th magnetic valve (12), the tenth magnetic valve (24), and second four-way change-over valve (3) two ends tracheae E is connected with first outdoor heat exchanger (6), second outdoor heat exchanger (7) respectively with C; One end tracheae E of the first cross valve reversal valve (2) is connected with indoor heat exchanger (11), and the S end of other end tracheae C and second four-way change-over valve (3) is connected; After the 4th magnetic valve (12) and second throttling arrangement (10) parallel connection, an end is connected by the liquid pipe of the tenth magnetic valve (24) and indoor heat exchanger (11), and the D end of the other end and second four-way change-over valve (3) is connected; After the 11 magnetic valve (21) and the 4th throttling arrangement (22) parallel connection, an end is connected by the liquid pipe of the tenth magnetic valve (24) and indoor heat exchanger (11), and the other end is connected with the liquid pipe of hot water heat exchanger (14).
9. according to the described outdoor double heat exchanger defrosting low-temperature heating system of claim 1～8, it is characterized in that: described each throttling arrangement can be capillary, heating power expansion valve, and electric expansion valve, during for electric expansion valve, the magnetic valve of its corresponding series connection does not need; The C of described each four-way change-over valve end and E end can exchange, and get by the control four-way change-over valve and electricly realize with dead electricity; Between described compressor (1) blast pipe and the muffler oil eliminator is housed, or on the muffler of compressor (1) gas-liquid separator is housed, or on the heat exchanger liquid pipe reservoir annex is housed.
10. according to the described outdoor double heat exchanger defrosting low-temperature heating system of claim 1～8, it is characterized in that: described indoor heat exchanger (11) and hot water heat exchanger (14) can be separate type or monoblock type, separate type connects by refrigerant tubing or waterpipe, and monoblock type is placed on unit inside; Described indoor heat exchanger (11) is hot and cold water type or cold and hot wind type; Described compressor (1) and indoor heat exchanger (11) can be at least 2 parallel connections, and each indoor heat exchanger (11) all is with an electric expansion valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010113352XA CN101788206B (en) | 2009-07-03 | 2010-01-28 | Outdoor double heat exchanger defrosting low-temperature heating system |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910054380 | 2009-07-03 | ||
| CN200910054380.6 | 2009-07-03 | ||
| CN201010113352XA CN101788206B (en) | 2009-07-03 | 2010-01-28 | Outdoor double heat exchanger defrosting low-temperature heating system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101788206A true CN101788206A (en) | 2010-07-28 |
| CN101788206B CN101788206B (en) | 2012-11-07 |
Family
ID=42531520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010113352XA Expired - Fee Related CN101788206B (en) | 2009-07-03 | 2010-01-28 | Outdoor double heat exchanger defrosting low-temperature heating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101788206B (en) |
Cited By (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102183108A (en) * | 2011-05-06 | 2011-09-14 | 广东美的暖通设备有限公司 | Defrosting method of three-pipe heating recovery system |
| CN103256749A (en) * | 2013-05-08 | 2013-08-21 | 青岛海尔空调电子有限公司 | Air conditioner system |
| CN103968503A (en) * | 2014-04-14 | 2014-08-06 | 广东美的暖通设备有限公司 | Air conditioner outdoor unit, and defrosting method and device for air conditioner |
| CN104251572A (en) * | 2013-06-28 | 2014-12-31 | 林柏翰 | Multifunctional heat pump air conditioning system |
| CN104482684A (en) * | 2014-11-24 | 2015-04-01 | 广东美的制冷设备有限公司 | Cooling/warming air conditioner |
| CN104501452A (en) * | 2014-11-24 | 2015-04-08 | 广东美的制冷设备有限公司 | Cooling and heating air conditioner |
| CN104633835A (en) * | 2013-11-14 | 2015-05-20 | 珠海格力电器股份有限公司 | Defrosting control method for air conditioner |
| CN104848578A (en) * | 2015-04-29 | 2015-08-19 | 广东美的制冷设备有限公司 | Air conditioner and control method for air conditioner |
| CN104930618A (en) * | 2015-05-26 | 2015-09-23 | 广东美的制冷设备有限公司 | Air conditioner and method for controlling air conditioner |
| CN105003982A (en) * | 2015-08-04 | 2015-10-28 | 珠海格力电器股份有限公司 | Air-conditioning system and control method thereof |
| CN105135747A (en) * | 2015-08-17 | 2015-12-09 | Tcl空调器(中山)有限公司 | Heat pump type air conditioner water heater |
| CN105202794A (en) * | 2015-09-29 | 2015-12-30 | 美的集团武汉制冷设备有限公司 | Air conditioner |
| CN105276879A (en) * | 2014-07-10 | 2016-01-27 | 青岛海信日立空调系统有限公司 | Air conditioning unit |
| CN105928272A (en) * | 2016-04-20 | 2016-09-07 | 广东美的暖通设备有限公司 | Air conditioning system and defrosting method thereof |
| CN106091377A (en) * | 2016-06-17 | 2016-11-09 | 广东美的暖通设备有限公司 | Air conditioning hot unit |
| CN106524399A (en) * | 2016-10-31 | 2017-03-22 | 芜湖美智空调设备有限公司 | Air conditioner defrosting device, air conditioner defrosting control method and system and air conditioner |
| CN106671733A (en) * | 2017-02-15 | 2017-05-17 | 唐齐新 | Air-conditioning system used in electric vehicle |
| CN107023988A (en) * | 2016-02-01 | 2017-08-08 | 陈则韶 | Water self circulation heat exchange formula changes in temperature hot water three-way set |
| CN108007016A (en) * | 2017-10-30 | 2018-05-08 | 珠海格力电器股份有限公司 | The control method of heat pump system and heat pump system |
| CN108087950A (en) * | 2018-01-10 | 2018-05-29 | 广东瑞星新能源科技有限公司 | A kind of dual system heat pump and its heating method and defrosting method |
| CN110726173A (en) * | 2019-11-18 | 2020-01-24 | 宁波奥克斯电气股份有限公司 | Defrosting system and control method for outdoor unit without stopping and air conditioner |
| CN111426090A (en) * | 2020-03-24 | 2020-07-17 | 青岛海尔空调电子有限公司 | Control device, air-conditioning heat pump system and control method thereof |
| CN112268379A (en) * | 2020-11-18 | 2021-01-26 | 珠海格力电器股份有限公司 | Heat pump system, control method and device thereof, air conditioning equipment and storage medium |
| CN112303955A (en) * | 2020-11-18 | 2021-02-02 | 珠海格力电器股份有限公司 | Heat pump system, control method and control device thereof, air conditioning equipment and storage medium |
| CN113218099A (en) * | 2021-04-01 | 2021-08-06 | 湖南雅立科技开发有限公司 | Gas treatment method and system for heat recovery or defrosting by using refrigerant |
| CN113218100A (en) * | 2021-04-01 | 2021-08-06 | 湖南雅立科技开发有限公司 | Gas deep dehumidification method and system based on refrigerant compression cycle |
| CN115235154A (en) * | 2022-03-31 | 2022-10-25 | 浙江中广电器集团股份有限公司 | Air source heat pump and defrosting device thereof |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104729163B (en) * | 2013-12-24 | 2017-06-06 | 珠海格力电器股份有限公司 | Air-conditioning system and its defrosting control method |
| CN108224837A (en) * | 2017-12-19 | 2018-06-29 | 青岛海尔空调电子有限公司 | Air-conditioner system |
| CN108800687A (en) * | 2018-05-21 | 2018-11-13 | 顺德职业技术学院 | Dual chamber external heat exchanger heat pump with defrosting function and defrosting method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200955881Y (en) * | 2006-01-05 | 2007-10-03 | 南京天加空调设备有限公司 | Continuous defrosting and heating air source heat pump |
| CN200965364Y (en) * | 2006-09-30 | 2007-10-24 | 四川长虹电器股份有限公司 | Constant temperature and dehumidification split-type heat pump air conditioning unit |
-
2010
- 2010-01-28 CN CN201010113352XA patent/CN101788206B/en not_active Expired - Fee Related
Cited By (33)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102183108A (en) * | 2011-05-06 | 2011-09-14 | 广东美的暖通设备有限公司 | Defrosting method of three-pipe heating recovery system |
| CN103256749A (en) * | 2013-05-08 | 2013-08-21 | 青岛海尔空调电子有限公司 | Air conditioner system |
| CN103256749B (en) * | 2013-05-08 | 2015-07-29 | 青岛海尔空调电子有限公司 | Air-conditioning system |
| CN104251572A (en) * | 2013-06-28 | 2014-12-31 | 林柏翰 | Multifunctional heat pump air conditioning system |
| CN104633835A (en) * | 2013-11-14 | 2015-05-20 | 珠海格力电器股份有限公司 | Defrosting control method for air conditioner |
| CN103968503A (en) * | 2014-04-14 | 2014-08-06 | 广东美的暖通设备有限公司 | Air conditioner outdoor unit, and defrosting method and device for air conditioner |
| CN105276879A (en) * | 2014-07-10 | 2016-01-27 | 青岛海信日立空调系统有限公司 | Air conditioning unit |
| CN104482684A (en) * | 2014-11-24 | 2015-04-01 | 广东美的制冷设备有限公司 | Cooling/warming air conditioner |
| CN104501452A (en) * | 2014-11-24 | 2015-04-08 | 广东美的制冷设备有限公司 | Cooling and heating air conditioner |
| CN104482684B (en) * | 2014-11-24 | 2017-03-08 | 广东美的制冷设备有限公司 | Heating and air conditioner |
| CN104848578A (en) * | 2015-04-29 | 2015-08-19 | 广东美的制冷设备有限公司 | Air conditioner and control method for air conditioner |
| CN104848578B (en) * | 2015-04-29 | 2017-12-12 | 广东美的制冷设备有限公司 | The control method of air conditioner and air conditioner |
| CN104930618A (en) * | 2015-05-26 | 2015-09-23 | 广东美的制冷设备有限公司 | Air conditioner and method for controlling air conditioner |
| CN105003982B (en) * | 2015-08-04 | 2018-04-13 | 珠海格力电器股份有限公司 | A kind of control method of air-conditioning system |
| CN105003982A (en) * | 2015-08-04 | 2015-10-28 | 珠海格力电器股份有限公司 | Air-conditioning system and control method thereof |
| CN105135747A (en) * | 2015-08-17 | 2015-12-09 | Tcl空调器(中山)有限公司 | Heat pump type air conditioner water heater |
| CN105202794A (en) * | 2015-09-29 | 2015-12-30 | 美的集团武汉制冷设备有限公司 | Air conditioner |
| CN107023988A (en) * | 2016-02-01 | 2017-08-08 | 陈则韶 | Water self circulation heat exchange formula changes in temperature hot water three-way set |
| CN105928272A (en) * | 2016-04-20 | 2016-09-07 | 广东美的暖通设备有限公司 | Air conditioning system and defrosting method thereof |
| CN106091377B (en) * | 2016-06-17 | 2019-04-30 | 广东美的暖通设备有限公司 | Air conditioning hot unit |
| CN106091377A (en) * | 2016-06-17 | 2016-11-09 | 广东美的暖通设备有限公司 | Air conditioning hot unit |
| CN106524399A (en) * | 2016-10-31 | 2017-03-22 | 芜湖美智空调设备有限公司 | Air conditioner defrosting device, air conditioner defrosting control method and system and air conditioner |
| CN106671733A (en) * | 2017-02-15 | 2017-05-17 | 唐齐新 | Air-conditioning system used in electric vehicle |
| CN108007016A (en) * | 2017-10-30 | 2018-05-08 | 珠海格力电器股份有限公司 | The control method of heat pump system and heat pump system |
| CN108087950A (en) * | 2018-01-10 | 2018-05-29 | 广东瑞星新能源科技有限公司 | A kind of dual system heat pump and its heating method and defrosting method |
| CN110726173A (en) * | 2019-11-18 | 2020-01-24 | 宁波奥克斯电气股份有限公司 | Defrosting system and control method for outdoor unit without stopping and air conditioner |
| CN111426090A (en) * | 2020-03-24 | 2020-07-17 | 青岛海尔空调电子有限公司 | Control device, air-conditioning heat pump system and control method thereof |
| CN112268379A (en) * | 2020-11-18 | 2021-01-26 | 珠海格力电器股份有限公司 | Heat pump system, control method and device thereof, air conditioning equipment and storage medium |
| CN112303955A (en) * | 2020-11-18 | 2021-02-02 | 珠海格力电器股份有限公司 | Heat pump system, control method and control device thereof, air conditioning equipment and storage medium |
| CN113218099A (en) * | 2021-04-01 | 2021-08-06 | 湖南雅立科技开发有限公司 | Gas treatment method and system for heat recovery or defrosting by using refrigerant |
| CN113218100A (en) * | 2021-04-01 | 2021-08-06 | 湖南雅立科技开发有限公司 | Gas deep dehumidification method and system based on refrigerant compression cycle |
| CN113218100B (en) * | 2021-04-01 | 2022-07-05 | 湖南雅立科技开发有限公司 | Gas deep dehumidification method and system based on refrigerant compression cycle |
| CN115235154A (en) * | 2022-03-31 | 2022-10-25 | 浙江中广电器集团股份有限公司 | Air source heat pump and defrosting device thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101788206B (en) | 2012-11-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101788206B (en) | Outdoor double heat exchanger defrosting low-temperature heating system | |
| CN101464058B (en) | Large energy accumulation type air source heat pump hot water units | |
| CN101270933B (en) | Geothermal heat pump air conditioning/refrigerating compound system | |
| CN102645060B (en) | Multi-split air conditioning system | |
| CN105157270A (en) | Low-environment-temperature air source heat pump system with undercooling loop | |
| CN206540334U (en) | Solar heat-preservation type air source heat pump defrosting system | |
| CN101008537A (en) | Integrated air-conditioning system of solar-assisted soil source CO2 trans-critical heat pump | |
| CN1854645A (en) | Geothermal heat-pumping system | |
| CN2720355Y (en) | Central air-conditioner of ground source heat-pump | |
| CN201203296Y (en) | Ground source heat pump air conditioner / refrigeration composite system | |
| CN105276861A (en) | Compensation type double-source heat pump cold and hot air air-conditioner unit | |
| CN101943503B (en) | Air-conditioning refrigeration facility | |
| CN103528267A (en) | Low-environmental-temperature air source heat pump refrigerating system with heat pipe loop | |
| CN202371930U (en) | Water and air dual-source heat pump unit | |
| CN110160178A (en) | Heat pump air conditioning system based on natural energy resources | |
| CN201637184U (en) | Energy-saving refrigerating house and quick-freeze tunnel refrigeration equipment thereof | |
| CN205026983U (en) | Take low ambient temperature air source heat pump system of cold loop | |
| CN202057111U (en) | Multifunctional air source hot water and air-conditioning heat pump unit | |
| CN102072587B (en) | Air conditioning refrigeration equipment | |
| CN102072531A (en) | Four-pipe type heat recovery multi-split air conditioning system | |
| CN102003834B (en) | Multifunctional air source hot water and air conditioning heat pump unit | |
| CN102022791B (en) | Energy accumulation type air conditioning water chiller/heater | |
| CN101424452B (en) | Multifunctional heat pump water heating machine easy for defrosting | |
| CN211503308U (en) | Air source heat pump system capable of improving supercooling and anti-freezing capacity | |
| CN211575592U (en) | Air source heat pump system based on soil seasonal heat storage defrosting and solar intermittent utilization |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI ENERGY AIR CONDITIONING EQUIPMENT CO., LT Free format text: FORMER OWNER: CENG HUAWEN Effective date: 20130805 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 201620 SONGJIANG, SHANGHAI TO: 201104 MINHANG, SHANGHAI |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130805 Address after: 201104, Shanghai, Minhang District collection of mind 168 No. 1, Room 401 Patentee after: Shanghai can air conditioning equipment Co., Ltd. Address before: 201620, room 50, No. 618, Lane 1301, Hu Ting North Road, Jiuting Town, Shanghai, Songjiang District Patentee before: Zeng Huawen |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171213 Address after: 230031 Hefei Changjiang Road, Anhui, No. 888 Patentee after: Zeng Huawen Address before: 201104, Shanghai, Minhang District collection of mind 168 No. 1, Room 401 Patentee before: Shanghai can air conditioning equipment Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121107 Termination date: 20180128 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |