CN201535589U - Heat pump air-conditioning system - Google Patents

Heat pump air-conditioning system Download PDF

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Publication number
CN201535589U
CN201535589U CN2009202378300U CN200920237830U CN201535589U CN 201535589 U CN201535589 U CN 201535589U CN 2009202378300 U CN2009202378300 U CN 2009202378300U CN 200920237830 U CN200920237830 U CN 200920237830U CN 201535589 U CN201535589 U CN 201535589U
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CN
China
Prior art keywords
heat exchanger
communicated
valve
outdoor heat
port
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.)
Expired - Fee Related
Application number
CN2009202378300U
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Chinese (zh)
Inventor
黄钊
邓建云
占磊
谭亚平
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Midea Group Co Ltd
Original Assignee
Guangdong Midea Electric Appliances Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Guangdong Midea Electric Appliances Co Ltd filed Critical Guangdong Midea Electric Appliances Co Ltd
Priority to CN2009202378300U priority Critical patent/CN201535589U/en
Application granted granted Critical
Publication of CN201535589U publication Critical patent/CN201535589U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

A heat pump air-conditioning system comprises a compressor, a four-way valve, an outdoor heat exchanger, an electronic expansion valve and an indoor heat exchanger, wherein a first interface of the four-way valve is communicated with one end of the exhaust pipe of the compressor, a second interface of the four-way valve is communicated with one end of the main pipe of the outdoor heat exchanger, a third interface of the four-way valve is communicated with one end of the air intake pipe of the compressor, a fourth interface of the four-way valve is communicated with one end of the indoor heat exchanger, and the electronic expansion valve is connected between the outdoor heat exchanger and the indoor heat exchanger in series. The heat pump air-conditioning system is characterized by also comprising a first three-way solenoid valve and a second three-way solenoid valve, the outdoor heat exchanger comprises a first outdoor heat exchanger and a second outdoor heat exchanger, a first port of the first three-way solenoid valve and a first port of the second three-way solenoid valve are parallelly connected and then communicated with the other end of the main pipe, and a second port of the first three-way solenoid valve is communicated with one end of the first outdoor heat exchanger. The utility model has the characteristics of high working efficiency, good heating effect and wide application range.

Description

Heat pump type air conditioning system
Technical field
The utility model relates to a kind of heat pump type air conditioning system.
Background technology
Common heat pump type air conditioning system is in the process of heating, if in the time of need entering defrosting control, must utilize the cross valve commutation, adopt refrigeration mode to come outdoor heat exchanger is defrosted, this moment, indoor heat exchanger was then used as the evaporimeter of low pressure, the blower fan of indoor set cuts out, and such control can defrost by the cycle, and the heating capacity of interruption is provided for the user.But, when entering when control defrosting, just can not be for the user provide heating capacity, and the room temperature fluctuation is obvious, and inefficiency, the heating effect of heat pump type air conditioning system are poor.
The utility model content
The purpose of this utility model aims to provide a kind of simple and reasonable, flexible operation, high efficiency, and the heat pump type air conditioning system that heating effect is good, applied widely is to overcome weak point of the prior art.
A kind of heat pump type air conditioning system by this purpose design, comprise compressor, cross valve, outdoor heat exchanger, electric expansion valve and indoor heat exchanger, first interface of cross valve is communicated with an end of compressor exhaust pipe, second interface of cross valve is communicated with the house steward's of outdoor heat exchanger a end, the 3rd interface of cross valve is communicated with an end of compressor suction duct, the 4th interface of cross valve is communicated with an end of indoor heat exchanger, electric expansion valve is serially connected between outdoor heat exchanger and the indoor heat exchanger, it is characterized in that also comprising first three-way magnetic valve and second three-way magnetic valve, outdoor heat exchanger comprises first outdoor heat exchanger and second outdoor heat exchanger, be communicated with house steward's the other end after the first port parallel connection of first port of first three-way magnetic valve and second three-way magnetic valve, second port of first three-way magnetic valve is communicated with an end of first outdoor heat exchanger, second port end of second three-way magnetic valve is communicated with an end of second outdoor heat exchanger, and the 3rd port of first three-way magnetic valve is communicated with the 3rd port of second three-way magnetic valve.
Described heat pump type air conditioning system also comprises bypass solenoid valve, one end of this bypass solenoid valve is communicated between the end of the 4th interface of cross valve and indoor heat exchanger, and the other end of bypass solenoid valve is communicated between the 3rd port of the 3rd port of first three-way magnetic valve and second three-way magnetic valve.
Be communicated with electric expansion valve after the other end parallel connection of the other end of described first outdoor heat exchanger and second outdoor heat exchanger.
Described heat pump type air conditioning system also comprises low-pressure liquid storing tank, and the 3rd interface of cross valve is communicated with an end of compressor suction duct through behind the low-pressure liquid storing tank.
Described outdoor heat exchanger is provided with temperature sensor.
The utility model has increased a bypass solenoid valve and two three-way magnetic valves on the basis of traditional heat pump, when heating and defrosting, utilize first outdoor heat exchanger to use as condenser with indoor heat exchanger, just can solve the problem of the first outdoor heat exchanger frosting this moment, just switch to afterwards second outdoor heat exchanger with indoor heat exchanger as condenser usefulness, solve the problem of the second outdoor heat exchanger frosting.And under common cooling and warming situation, control the same with traditional air-conditioning.
The utlity model has four kinds of different operational modes, can realize normal refrigeration mode, normal heating mode, the defrosting of first outdoor heat exchanger heating mode and second outdoor heat exchanger defrosting while heating mode simultaneously by different control switchings, it has flexible operation, advantage of wide range of application, can satisfy user's normal hot-cool demand.
The utility model is opened by bypass solenoid valve, part condensation in indoor heat exchanger from the overheated gas refrigerant of compressor exhaust pipe, realize indoorly normally heating, another part of overheated gas refrigerant is then controlled by bypass solenoid valve and first three-way magnetic valve and second three-way magnetic valve and is entered first outdoor heat exchanger that needs defrosting and any in second outdoor heat exchanger, utilize hyperthermia and superheating gas coolant quickly defrosting, afterwards, enter another outdoor heat exchanger after two parts refrigerant converges again and evaporate, get back to compressor at last and circulate once more.In defrost process, cross valve need not switch to refrigeration mode, and heats according to normal heating mode, has guaranteed that indoor heat exchanger need not shut down, and reaches constant to heat, thereby has improved heating efficiency, has improved heating effect.
Description of drawings
Fig. 1 is the utility model one embodiment schematic diagram.
Schematic diagram when Fig. 2 freezes for the utility model.
Schematic diagram when Fig. 3 heats for the utility model.
Schematic diagram when Fig. 4 defrosts to first outdoor heat exchanger in the process of heating for the utility model.
Schematic diagram when Fig. 5 defrosts to second outdoor heat exchanger in the process of heating for the utility model.
Among the figure: 1 is compressor, 2 is cross valve, and 3 is first three-way magnetic valve, and 4 is second three-way magnetic valve, 5 is first outdoor heat exchanger, 6 is second outdoor heat exchanger, and 7 is temperature sensor, and 8 is electric expansion valve, 9 is indoor heat exchanger, 10 is bypass solenoid valve, and 11 is low-pressure liquid storing tank, and 12 is house steward.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further described.
Referring to Fig. 1, this heat pump type air conditioning system comprises compressor 1, cross valve 2, first three-way magnetic valve 3, second three-way magnetic valve 4, outdoor heat exchanger, temperature sensor 7, electric expansion valve 8, indoor heat exchanger 9 and bypass solenoid valve 10.The first interface e of cross valve 2 is communicated with an end of compressor 1 blast pipe, the second interface f of cross valve 2 is communicated with the house steward's 12 of outdoor heat exchanger a end, the 3rd interface g of cross valve 2 is communicated with an end of compressor 1 air intake duct, the 4th interface h of cross valve 2 is communicated with an end of indoor heat exchanger 9, and electric expansion valve 8 is serially connected between outdoor heat exchanger and the indoor heat exchanger 9.Outdoor heat exchanger is provided with temperature sensor 7.
Outdoor heat exchanger comprises first outdoor heat exchanger 5 and second outdoor heat exchanger 6, be communicated with house steward 12 the other end after the first port A` parallel connection of the first port A of first three-way magnetic valve 3 and second three-way magnetic valve 4, the second port B of first three-way magnetic valve 3 is communicated with an end of first outdoor heat exchanger 5, the second port B` end of second three-way magnetic valve 4 is communicated with an end of second outdoor heat exchanger 6, and the 3rd port C of first three-way magnetic valve 3 is communicated with the 3rd port C` of second three-way magnetic valve 4.
One end of bypass solenoid valve 10 is communicated between the end of the 4th interface h of cross valve 2 and indoor heat exchanger 9, and the other end of bypass solenoid valve 10 is communicated between the 3rd port C` of the 3rd port C of first three-way magnetic valve 3 and second three-way magnetic valve 4.
Be communicated with electric expansion valve 8 after the other end parallel connection of the other end of first outdoor heat exchanger 5 and second outdoor heat exchanger 6.
For the stability of raising system operation, heat pump type air conditioning system can also comprise low-pressure liquid storing tank 11, and the 3rd interface g of cross valve 2 is communicated with an end of compressor 1 air intake duct through low-pressure liquid storing tank 11 backs.
During normal refrigeration mode, see Fig. 2, high temperature from compressor 1, be divided into two the tunnel behind the first interface e of pressurized gas refrigerant process cross valve 2 and the second interface f, respectively by first three-way magnetic valve 3 and second three-way magnetic valve 4, after entering first outdoor heat exchanger 5 and second outdoor heat exchanger 6 and being condensed into high-pressure sub-cooled liquid, 8 throttlings become low-temp low-pressure gas-liquid two-phase refrigerant through electric expansion valve, after in indoor heat exchanger 9, evaporating, pass through the 4th interface h and the 3rd interface g of cross valve 2 then, enter in the low-pressure liquid storing tank 11, carry out gas, get back to compressor 1 after the liquid shunting and finish kind of refrigeration cycle.At process of refrigerastion, the first interface e of cross valve 2 and the second interface f are communicated with, the 4th interface h of cross valve 2 and the 3rd interface g are communicated with, the first port A of first three-way magnetic valve 3 and the second port B are communicated with, the first port A` of second three-way magnetic valve 4 and the second port B` are communicated with, and bypass solenoid valve 10 is closed.
During normal heating mode, see Fig. 3, high temperature from compressor 1, after heat exchanger 9 is condensed into high-pressure sub-cooled liquid in the inlet chamber behind first interface e of pressurized gas refrigerant process cross valve 2 and the 4th interface h, 8 throttlings become low-temp low-pressure gas-liquid two-phase refrigerant through electric expansion valve, after then dividing work two tunnel to enter first outdoor heat exchanger 5 and 6 evaporations of second outdoor heat exchanger, collaborate behind the second port B` of the second port B by first three-way magnetic valve 3 and the first port A and second three-way magnetic valve 4 and the first port A` respectively again, enter the second interface f and the 3rd interface g of cross valve 2 then, then enter low-pressure liquid storing tank 11 and carry out gas, after the liquid shunting, get back to compressor 1 and finish and heat circulation.In normal heating process, first interface e of cross valve 2 and the 4th interface h are communicated with, 2 second interface f of cross valve and the 3rd interface g are communicated with, the first port A of first three-way magnetic valve 3 and the second port B are communicated with, the first port A` of second three-way magnetic valve 4 and the second port B` are communicated with, and bypass solenoid valve 10 is closed.
During defrosting mode, see Fig. 4-Fig. 5, need defrost respectively to first outdoor heat exchanger 5 and second outdoor heat exchanger 6, can judge whether to enter defrosting control by the temperature value of the temperature sensor on sensing chamber's external heat exchanger 7, can defrost to first outdoor heat exchanger 5 earlier when needing control, and detect the defrosting required time, again second outdoor heat exchanger 6 be carried out the defrosting control of identical time afterwards, defrosting heats control after finishing normally, and concrete operations are as follows.
When needs defrost to first outdoor heat exchanger 5, be divided into two parts after through the first interface e of cross valve 2 and the 4th interface h from the high temperature of compressor 1, pressurized gas refrigerant: after a part entered indoor heat exchanger 9 and is condensed into high-pressure sub-cooled liquid, 8 throttlings became low-temp low-pressure gas-liquid two-phase refrigerant through electric expansion valve; Another part high temperature, pressurized gas refrigerant is then by bypass solenoid valve 10 again behind the 3rd port C and the second port B by first three-way magnetic valve 3, flow into first outdoor heat exchanger 5 and carry out condensation, melt the frost layer on first outdoor heat exchanger 5 simultaneously, after condensed refrigerant and a preceding part are mixed from the refrigerant of electric expansion valve 8, entering second outdoor heat exchanger 6 evaporates, refrigerant after the evaporation the flow through second port B` and the first port A` of second three-way magnetic valve 4, the second interface f and the 3rd interface g of cross valve 2 again flow through, get back to and carry out gas in the low-pressure liquid storing tank 11, liquid is got back to compressor 1 after separating.Finish circulation.In needs defrost control to first outdoor heat exchanger 5, first interface e of cross valve 2 and the 4th interface h are communicated with, second interface f of cross valve 2 and the 3rd interface g are communicated with, the 3rd port C of first three-way magnetic valve 3 and the second port B are communicated with, the first port A` of second three-way magnetic valve 4 and the second port B` are communicated with, and bypass solenoid valve 10 is opened.
When needs defrost to second outdoor heat exchanger 6, be divided into two parts after through the first interface e of cross valve 2 and the 4th interface h from the high temperature of compressor 1, pressurized gas refrigerant: after a part entered indoor heat exchanger 9 and is condensed into high-pressure sub-cooled liquid, 8 throttlings became low-temp low-pressure gas-liquid two-phase refrigerant through electric expansion valve; Another part high temperature, pressurized gas refrigerant then flows into second outdoor heat exchanger 6 by the 3rd port C` of second three-way magnetic valve 4 and the second port B` again by bypass solenoid valve 10 and carries out condensation, melt the frost layer on second outdoor heat exchanger 6 simultaneously, after condensed refrigerant and a preceding part are mixed from the refrigerant of electric expansion valve 8, entering first outdoor heat exchanger 5 evaporates, refrigerant after the evaporation the flow through second port B and the first port A of first three-way magnetic valve 3, the flow through second interface f and the 3rd interface g of cross valve 2 get back to and carry out gas in the low-pressure liquid storing tank 11 again, liquid is got back to compressor 1 after separating.Finish circulation.In needs defrost control to second outdoor heat exchanger 6, first interface e of cross valve 2 and the 4th interface h are communicated with, second interface f of cross valve 2 and the 3rd interface g are communicated with, the 3rd port C` of second three-way magnetic valve 4 and the second port B` are communicated with, the first port A of first three-way magnetic valve 3 and the second port B are communicated with, and bypass solenoid valve 10 is opened.
Under defrosting mode, indoor heat exchanger 9 can keep heating always, and need not stop indoor fan.The control that enters defrosting can be by being provided with the temperature-sensitive bag respectively on the coil pipe of first outdoor heat exchanger 5 and second outdoor heat exchanger 6, just temperature sensor 7, judges the opportunity that enters defrosting by detecting the coil temperature value.
First outdoor heat exchanger 5 in the utility model and second outdoor heat exchanger 6 both can be divided into two by a heat exchanger to be used, and also can directly be set to two independent heat exchangers; Both can upper and lower settings, also can about be arranged side by side.
How indoor set in the utility model both can be the interior machine of one-to-one, also can be to drag many indoor set parallel connections.
The utility model is not only limited to above-mentioned example, and in essential scope of the present utility model, the variation of making, remodeling, increase or replacement also belong to protection domain of the present utility model.

Claims (5)

1. heat pump type air conditioning system, comprise compressor (1), cross valve (2), outdoor heat exchanger, electric expansion valve (8) and indoor heat exchanger (9), first interface (e) of cross valve is communicated with an end of compressor exhaust pipe, second interface (f) of cross valve is communicated with the house steward's (12) of outdoor heat exchanger a end, the 3rd interface (g) of cross valve is communicated with an end of compressor suction duct, the 4th interface (h) of cross valve is communicated with an end of indoor heat exchanger, electric expansion valve is serially connected between outdoor heat exchanger and the indoor heat exchanger, it is characterized in that also comprising first three-way magnetic valve (3) and second three-way magnetic valve (4), outdoor heat exchanger comprises first outdoor heat exchanger (5) and second outdoor heat exchanger (6), first port (A) of first three-way magnetic valve is communicated with house steward's the other end with first port (A`) of second three-way magnetic valve back in parallel, second port (B) of first three-way magnetic valve is communicated with an end of first outdoor heat exchanger, second port (B`) end of second three-way magnetic valve is communicated with an end of second outdoor heat exchanger, and the 3rd port (C) of first three-way magnetic valve is communicated with the 3rd port (C`) of second three-way magnetic valve.
2. heat pump type air conditioning system according to claim 1, it is characterized in that described heat pump type air conditioning system also comprises bypass solenoid valve (10), one end of this bypass solenoid valve is communicated between the end of the 4th interface (h) of cross valve (2) and indoor heat exchanger (9), and the other end of bypass solenoid valve is communicated between the 3rd port (C`) of the 3rd port (C) of first three-way magnetic valve and second three-way magnetic valve.
3. heat pump type air conditioning system according to claim 1 is characterized in that being communicated with electric expansion valve (8) after the other end parallel connection of the other end of described first outdoor heat exchanger (5) and second outdoor heat exchanger (6).
4. heat pump type air conditioning system according to claim 1 is characterized in that described heat pump type air conditioning system also comprises low-pressure liquid storing tank (11), and the 3rd interface (g) of cross valve is communicated with an end of compressor suction duct through behind the low-pressure liquid storing tank.
5. heat pump type air conditioning system according to claim 1 is characterized in that described outdoor heat exchanger is provided with temperature sensor (7).
CN2009202378300U 2009-10-20 2009-10-20 Heat pump air-conditioning system Expired - Fee Related CN201535589U (en)

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Application Number Priority Date Filing Date Title
CN2009202378300U CN201535589U (en) 2009-10-20 2009-10-20 Heat pump air-conditioning system

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Application Number Priority Date Filing Date Title
CN2009202378300U CN201535589U (en) 2009-10-20 2009-10-20 Heat pump air-conditioning system

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104089427A (en) * 2014-06-24 2014-10-08 珠海格力电器股份有限公司 Air conditioner system and control method thereof
CN104329824A (en) * 2013-07-22 2015-02-04 广东美的暖通设备有限公司 Multi-connected type air conditioner system and control method thereof
CN104329825A (en) * 2013-07-22 2015-02-04 广东美的暖通设备有限公司 Three-pipe air conditioning system and control method thereof
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
CN104728951A (en) * 2015-04-13 2015-06-24 宁波奥克斯电气有限公司 Multi-connected air-conditioner unit outdoor unit module and method for heating and defrosting at the same time through same
CN105042925A (en) * 2015-08-05 2015-11-11 广东美的制冷设备有限公司 Air conditioning system and air conditioner with same
CN106813414A (en) * 2015-11-27 2017-06-09 青岛海尔空调器有限总公司 Air-conditioner
CN108759153A (en) * 2018-07-02 2018-11-06 上海理工大学 A kind of pump type heat automotive air-conditioning system
CN109539621A (en) * 2018-11-13 2019-03-29 珠海格力电器股份有限公司 A kind of heat pump air conditioning system
CN111426091A (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

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104329824B (en) * 2013-07-22 2016-08-10 广东美的暖通设备有限公司 Multi-connected air conditioning system and control method thereof
CN104329824A (en) * 2013-07-22 2015-02-04 广东美的暖通设备有限公司 Multi-connected type air conditioner system and control method thereof
CN104329825A (en) * 2013-07-22 2015-02-04 广东美的暖通设备有限公司 Three-pipe air conditioning system and control method thereof
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
CN104089427A (en) * 2014-06-24 2014-10-08 珠海格力电器股份有限公司 Air conditioner system and control method thereof
CN104089427B (en) * 2014-06-24 2017-01-18 珠海格力电器股份有限公司 Air conditioner system and control method thereof
CN104728951A (en) * 2015-04-13 2015-06-24 宁波奥克斯电气有限公司 Multi-connected air-conditioner unit outdoor unit module and method for heating and defrosting at the same time through same
CN104728951B (en) * 2015-04-13 2017-09-12 宁波奥克斯电气股份有限公司 The outdoor unit modules of multi-connected machine and the method for being heated and being defrosted simultaneously using the module
CN105042925A (en) * 2015-08-05 2015-11-11 广东美的制冷设备有限公司 Air conditioning system and air conditioner with same
CN106813414A (en) * 2015-11-27 2017-06-09 青岛海尔空调器有限总公司 Air-conditioner
CN108759153A (en) * 2018-07-02 2018-11-06 上海理工大学 A kind of pump type heat automotive air-conditioning system
CN109539621A (en) * 2018-11-13 2019-03-29 珠海格力电器股份有限公司 A kind of heat pump air conditioning system
CN111426091A (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

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Owner name: MIDEA GROUP CO., LTD.

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Effective date: 20140110

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Effective date of registration: 20140110

Address after: 528311 Guangdong, Foshan, Beijiao, the United States, the United States and the United States on the avenue of the United States, the headquarters of the United States building B floor, District, 26-28

Patentee after: Midea Group Co., Ltd.

Address before: 528300 Penglai Road, Beijiao Town, Shunde District, Guangdong, Foshan

Patentee before: Meidi Electric Appliances Co., Ltd., Guangdong

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100728

Termination date: 20161020