CN102538272B - Air-conditioning system and defrosting method thereof - Google Patents
Air-conditioning system and defrosting method thereof Download PDFInfo
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- CN102538272B CN102538272B CN 201210029097 CN201210029097A CN102538272B CN 102538272 B CN102538272 B CN 102538272B CN 201210029097 CN201210029097 CN 201210029097 CN 201210029097 A CN201210029097 A CN 201210029097A CN 102538272 B CN102538272 B CN 102538272B
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 38
- 238000010257 thawing Methods 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title claims abstract description 9
- 239000003507 refrigerant Substances 0.000 claims description 29
- 238000010438 heat treatment Methods 0.000 claims description 12
- 238000010521 absorption reaction Methods 0.000 claims description 11
- 230000008020 evaporation Effects 0.000 claims description 10
- 238000001704 evaporation Methods 0.000 claims description 10
- 238000005338 heat storage Methods 0.000 abstract 2
- 239000011232 storage material Substances 0.000 abstract 2
- 230000009102 absorption Effects 0.000 description 8
- 239000002826 coolant Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Abstract
The invention discloses an air-conditioning system and a defrosting method thereof. The air-conditioning system comprises a compressor, a four-way reversing valve, an outdoor heat exchanger, a throttling mechanism, an indoor heat exchanger and a first electromagnetic valve. A high-pressure outlet of the compressor is connected with a first connector of the four-way reversing valve, a second connector of the four-way reversing valve is connected with one end of the outdoor heat exchanger, the other end of the outdoor heat exchanger is connected with one end of the indoor heat exchanger throughthe throttling mechanism and a first stop valve, the other end of the indoor heat exchanger is connected with a fourth connector of the four-way reversing valve through a second stop valve, and a third connector of the four-way reversing valve is connected with a low-pressure inlet of the compressor. One end of the first electromagnetic valve is connected between the throttling mechanism and the first stop valve, and the other end of the first electromagnetic valve is respectively connected with one end of a first heat storage material and one end of a second heat storage material. The air-conditioning system has the advantages of simple and reasonable structure, flexibility in operation and high comfortableness.
Description
Technical field
The present invention relates to a kind of air-conditioning system, particularly a kind of air-conditioning system and Defrost method thereof.
Background technology
Existing air-conditioning system just simply is made up of compressor, evaporimeter, condenser, throttle mechanism and some auxiliary equipment; when air-conditioning system operation heating and defrosting; air-conditioning system is shut down then the running refrigerating pattern earlier and is carried out hot gas defrosting; at this moment; the anti-cold wind pattern of indoor set operation of air-conditioning system, thereby the continuity that influence heats and user's comfortableness.
The heat pump air conditioner that Chinese patent literature CN101476801A disclosed a kind of continuously heating and defrosting on 08th in 07 month in 2009, comprise compressor, cross valve, outdoor heat exchanger, indoor heat exchanger, refrigerant electric heater and gas-liquid separator, cross valve communicates with an end of outdoor heat exchanger, be provided with outdoor electric expansion valve between the other end of outdoor heat exchanger and indoor heat exchanger one end, Chuan Jie first check valve successively, capillary and first magnetic valve constitute first branch road, one end of first branch road communicates with pipeline between the other end of outdoor heat exchanger and the outdoor electric expansion valve, pipeline between the other end of its other end and indoor heat exchanger and the 4th interface of cross valve communicates, second magnetic valve and second check valve of serial connection constitute second branch road, one end of second branch road communicates with pipeline between the end of outdoor electric expansion valve and indoor heat exchanger, and the pipeline between the 3rd interface of its other end and cross valve and the end of gas-liquid separator communicates.The processing that can effectively defrost of this heat pump air conditioner, but its shortcoming is: special refrigerant electric heater need be set, thereby increase manufacturing cost, and when defrosting, can strengthen the loss to electric weight, and heating effect is not significantly improved.
Summary of the invention
Purpose of the present invention aims to provide a kind of simple and reasonable, flexible operation, air-conditioning system and Defrost method thereof that comfortableness is good, to overcome weak point of the prior art.
A kind of air-conditioning system by this purpose design, comprise compressor, four-way change-over valve, outdoor heat exchanger, throttle mechanism and indoor heat exchanger, first interface of the high-pressure outlet of compressor and four-way change-over valve joins, second interface of four-way change-over valve and an end of outdoor heat exchanger join, the other end of outdoor heat exchanger is through throttle mechanism, end with indoor heat exchanger behind first stop valve joins, the other end of indoor heat exchanger joins with the 4th interface of four-way change-over valve after through second stop valve, the 3rd interface of four-way change-over valve and the low-pressure inlet of compressor join, its architectural feature is also to comprise first magnetic valve, one termination of this first magnetic valve is gone between throttle mechanism and first stop valve, the other end of first magnetic valve joins with an end of first heat accumulating and an end of second heat accumulating respectively, and the other end of the other end of first heat accumulating and second heat accumulating back that joins is inserted between the low-pressure inlet of the 3rd interface of four-way change-over valve and compressor.
The other end of the other end of described first heat accumulating and second heat accumulating back that joins is inserted between the low-pressure inlet of the 3rd interface of four-way change-over valve and compressor by check valve.
Described first heat accumulating is arranged on the compressor.
Described first heat accumulating is wrapped in outside the compressor.
Air-conditioning system also comprises electronic control module, and second heat accumulating and electronic control module are joined.
Air-conditioning system also comprises the 3rd magnetic valve, and the 3rd magnetic valve is arranged between second interface of an end of outdoor heat exchanger and four-way change-over valve.
Air-conditioning system also comprises second magnetic valve, and this second magnetic valve is arranged between the end of the 4th interface of four-way change-over valve and outdoor heat exchanger.
Described compressor is the frequency-changeable compressor more than, and indoor heat exchanger is more than one.
A kind of Defrost method of air-conditioning system, when it is characterized in that defrosting, the HTHP refrigerant that ejects from the high-pressure outlet of compressor is divided into two partly behind four-way change-over valve, wherein a part of refrigerant is sent to indoor heat exchanger after through second stop valve and heats, another partly refrigerant defrost to outdoor heat exchanger through second magnetic valve of "on" position; After the defrosting this another partly refrigerant with mix through a part of refrigerant after heating after be divided into two parts again, wherein a part of refrigerant is sent to and is wrapped in outer first heat accumulating heat absorption evaporation of compressor, another part refrigerant is sent to second heat accumulating heat absorption evaporation of joining with electronic control module, and the heat absorption evaporation converges to the low-pressure inlet of getting back to compressor together.
The present invention changes less on the basis of original air-conditioning system, by adopting first heat accumulating and second heat accumulating that the invalid heat energy that the compressor in the normal heating process and electronic control module give out is stored, energy as evaporation heat absorption in the defrost process, indoor heat exchanger in the defrost process can normally be heated, guarantee the comfortableness of indoor temperature.
That the present invention has is simple and reasonable, flexible operation and the good characteristics of comfortableness.
Description of drawings
Fig. 1 is the schematic diagram of the present invention when refrigeration mode.
Fig. 2 is the schematic diagram of the present invention when heating mode.
Fig. 3 is the schematic diagram of the present invention when defrosting mode.
Among the figure: 1 is compressor, and 2 is four-way change-over valve, and 3 is outdoor heat exchanger, 4 is throttle mechanism, and 5 is indoor heat exchanger, and 6 is first magnetic valve, 7 is second magnetic valve, and 8 is the 3rd magnetic valve, and 9 is electronic control module, 10 is first stop valve, 11 is second stop valve, and 12 is first heat accumulating, and 13 is second heat accumulating, 14 is check valve, and the direction of arrow among the figure is the refrigerant flow direction.
The specific embodiment
Below in conjunction with drawings and Examples the present invention is further described.
Referring to Fig. 1, this air-conditioning system, comprise compressor 1, four-way change-over valve 2, outdoor heat exchanger 3, throttle mechanism 4 and indoor heat exchanger 5, the first interface a of the high-pressure outlet of compressor 1 and four-way change-over valve 2 joins, the second interface b of four-way change-over valve 2 and an end of outdoor heat exchanger 3 join, the other end of outdoor heat exchanger 3 is through throttle mechanism 4, first stop valve, 10 backs join with an end of indoor heat exchanger 5, the other end of indoor heat exchanger 5 joins through the 4th interface d of second stop valve, 11 backs with four-way change-over valve 2, the 3rd interface c of four-way change-over valve 2 and the low-pressure inlet of compressor 1 join, air-conditioning system also comprises first magnetic valve 6, one termination of this first magnetic valve 6 is gone between throttle mechanism 4 and first stop valve 10, the other end of first magnetic valve 6 joins with an end of first heat accumulating 12 and an end of second heat accumulating 13 respectively, and the other end of the other end of first heat accumulating 12 and second heat accumulating 13 back that joins is inserted between the low-pressure inlet of the 3rd interface c of four-way change-over valve 2 and compressor 1.
The other end of the other end of first heat accumulating 12 and second heat accumulating 13 back that joins is inserted between the low-pressure inlet of the 3rd interface c of four-way change-over valves 2 and compressor 1 by check valve 14.
First heat accumulating 12 is arranged on the compressor 1.In the present embodiment, first heat accumulating 12 is wrapped in outside the compressor 1.
Air-conditioning system comprises that also electronic control module 9, the second heat accumulatings 13 join with electronic control module 9.Electronic control module 9 can be used for control compressor or blower fan.
Air-conditioning system comprises that also the 3rd magnetic valve 8, the three magnetic valves 8 are arranged between the second interface b of an end of outdoor heat exchanger 3 and four-way change-over valve 2.
Air-conditioning system also comprises second magnetic valve 7, and this second magnetic valve 7 is arranged between the end of the 4th interface d of four-way change-over valve 2 and outdoor heat exchanger 3.
By first stop valve 10 and second stop valve 11, air-conditioning system can be divided into indoor set and off-premises station.In the present embodiment, compressor 1 is the frequency-changeable compressor more than, and indoor heat exchanger 5 is more than one.When compressor 1 or indoor heat exchanger 5 are two when above, can be in parallel.
When air-conditioning system running refrigerating pattern, as shown in Figure 1, the HTHP refrigerant that ejects from the high-pressure outlet of compressor 1 is under four-way change-over valve 2 power-down states, cool off to outdoor heat exchanger 3 through four-way change-over valve 2 and the 3rd magnetic valve 8, the gaseous coolant of the low-pressure low-temperature of refrigerant after throttle mechanism 4 step-downs of temperature in the cooled high pressure, this gaseous coolant is sent to indoor heat exchanger 5 by first stop valve 10 and flashes to behind the gaseous coolant of low-temp low-pressure that to get back to the low-pressure inlet of compressor 1 after by four-way change-over valve 2 through second stop valve 11 compressed again, finishes kind of refrigeration cycle one time.In kind of refrigeration cycle, four-way change-over valve 2 outages, first magnetic valve 6 and 7 power down of second magnetic valve are opened circuit, the 3rd magnetic valve 8 energising paths.
When air-conditioning system operation heating mode, as shown in Figure 2, the HTHP refrigerant that ejects from the high-pressure outlet of compressor 1 is sent to the refrigerant that becomes temperature the high pressure after indoor heat exchanger 5 heats at four-way change-over valve 2 and second stop valve 11 through "on" position, it is compressed again that this refrigerant is got back to compressor 1 through magnetic valve 8 and four-way change-over valve 2 after by the gaseous coolant of first stop valve 10 through arriving outdoor heat exchanger 3 heat absorptions after the throttle mechanism 4 throttling step-downs and becoming low-pressure low-temperature, finishes once heating circulation.In heating circulation, four-way change-over valve 2 energisings, first magnetic valve 6 and 7 power down of second magnetic valve are opened circuit, the 3rd magnetic valve 8 energising paths.
When air-conditioning system operation defrosting mode, as shown in Figure 3, the HTHP refrigerant that ejects from the high-pressure outlet of compressor 1 is divided into two partly behind four-way change-over valve 2, wherein a part of refrigerant is sent to indoor heat exchanger 5 after through second stop valve 11 and heats, another partly refrigerant defrost to outdoor heat exchanger 3 through second magnetic valve 7 of "on" position; After the defrosting this another partly refrigerant with mix through a part of refrigerant after heating after be divided into two parts again, wherein a part of refrigerant is sent to first heat accumulating, the 12 heat absorption evaporations that are wrapped in outside the compressor 1, another part refrigerant is sent to second heat accumulating, the 13 heat absorption evaporations of joining with electronic control module 9, the heat absorption evaporation converges to the low-pressure inlet of getting back to compressor 1 together, finishes once circulation.In this defrost cycle, four-way change-over valve 2 energisings, first magnetic valve 6 and second magnetic valve, 7 energising paths, 8 power down of the 3rd magnetic valve are opened circuit.In defrosting mode, both guaranteed that indoor heat exchanger 5 can normally heat, guaranteed the normal defrosting of outdoor heat exchanger 3 again.
Claims (8)
1. air-conditioning system, comprise compressor (1), four-way change-over valve (2), outdoor heat exchanger (3), throttle mechanism (4) and indoor heat exchanger (5), first interface (a) of the high-pressure outlet of compressor (1) and four-way change-over valve (2) joins, second interface (b) of four-way change-over valve (2) joins with an end of outdoor heat exchanger (3), the other end of outdoor heat exchanger (3) is through throttle mechanism (4), first stop valve (10) back joins with an end of indoor heat exchanger (5), the other end of indoor heat exchanger (5) joins through the 4th interface (d) of second stop valve (11) back with four-way change-over valve (2), the 3rd interface (c) of four-way change-over valve (2) joins with the low-pressure inlet of compressor (1), it is characterized in that also comprising first magnetic valve (6), one termination of this first magnetic valve (6) is gone between throttle mechanism (4) and first stop valve (10), the other end of first magnetic valve (6) joins with an end of first heat accumulating (12) and an end of second heat accumulating (13) respectively, and the other end of the other end of first heat accumulating (12) and second heat accumulating (13) back that joins is inserted between the low-pressure inlet of the 3rd interface (c) of four-way change-over valve (2) and compressor (1);
Air-conditioning system also comprises the 3rd magnetic valve (8), and the 3rd magnetic valve (8) is arranged between second interface (b) of an end of outdoor heat exchanger (3) and four-way change-over valve (2).
2. air-conditioning system according to claim 1, the other end that it is characterized in that the other end of described first heat accumulating (12) and second heat accumulating (13) back that joins is inserted between the low-pressure inlet of the 3rd interface (c) of four-way change-over valve (2) and compressor (1) by check valve (14).
3. air-conditioning system according to claim 2 is characterized in that described first heat accumulating (12) is arranged on the compressor (1).
4. air-conditioning system according to claim 3 is characterized in that described first heat accumulating (12) is wrapped in outside the compressor (1).
5. air-conditioning system according to claim 2 is characterized in that air-conditioning system also comprises electronic control module (9), and second heat accumulating (13) joins with electronic control module (9).
6. according to the arbitrary described air-conditioning system of claim 1 to 5, it is characterized in that air-conditioning system also comprises second magnetic valve (7), this second magnetic valve (7) is arranged between the end of the 4th interface (d) of four-way change-over valve (2) and outdoor heat exchanger (3).
7. air-conditioning system according to claim 6 is characterized in that described compressor (1) is the frequency-changeable compressor more than, and indoor heat exchanger (5) is more than one.
8. the Defrost method of an air-conditioning system according to claim 1, when it is characterized in that defrosting, the HTHP refrigerant that ejects from the high-pressure outlet of compressor (1) is divided into two partly behind four-way change-over valve (2), wherein a part of refrigerant is sent to indoor heat exchanger (5) after through second stop valve (11) and heats, another partly refrigerant defrost to outdoor heat exchanger (3) through second magnetic valve (7) of "on" position; After the defrosting this another partly refrigerant with mix through a part of refrigerant after heating after be divided into two parts again, wherein a part of refrigerant is sent to and is wrapped in outer first heat accumulating (12) the heat absorption evaporation of compressor (1), another part refrigerant is sent to second heat accumulating (13) the heat absorption evaporation of joining with electronic control module (9), and the heat absorption evaporation converges to the low-pressure inlet of getting back to compressor (1) together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210029097 CN102538272B (en) | 2012-02-09 | 2012-02-09 | Air-conditioning system and defrosting method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210029097 CN102538272B (en) | 2012-02-09 | 2012-02-09 | Air-conditioning system and defrosting method thereof |
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| Publication Number | Publication Date |
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| CN102538272A CN102538272A (en) | 2012-07-04 |
| CN102538272B true CN102538272B (en) | 2013-10-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201210029097 Active CN102538272B (en) | 2012-02-09 | 2012-02-09 | Air-conditioning system and defrosting method thereof |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102788463A (en) * | 2012-07-30 | 2012-11-21 | 广东美的暖通设备有限公司 | Air-conditioning system |
| JP5692302B2 (en) * | 2013-08-08 | 2015-04-01 | 株式会社富士通ゼネラル | Air conditioner |
| CN106765983A (en) * | 2017-01-10 | 2017-05-31 | 美的集团武汉制冷设备有限公司 | Defrosting control method, defrosting control system and air-conditioner |
| CN107178924A (en) * | 2017-05-23 | 2017-09-19 | 华中科技大学 | A kind of accumulation of heat is not shut down except defrosting system and air-conditioning |
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|---|---|---|---|---|
| CN2156453Y (en) * | 1993-03-12 | 1994-02-16 | 康狄恩 | Defrost device for freezer |
| JP3031666B2 (en) * | 1997-03-17 | 2000-04-10 | 株式会社パイロット | Chip structure |
| CN2482652Y (en) * | 2001-05-23 | 2002-03-20 | 广东科龙电器股份有限公司 | Thermal storage heat pump air conditioner |
| CN1403756A (en) * | 2001-08-29 | 2003-03-19 | 广东科龙电器股份有限公司 | Uninterrupted heating process and air conditioning system |
| CN1757995A (en) * | 2004-10-08 | 2006-04-12 | 松下电器产业株式会社 | Air conditioner |
| JP2008196798A (en) * | 2007-02-14 | 2008-08-28 | Matsushita Electric Ind Co Ltd | Air conditioner |
| CN101338960A (en) * | 2008-08-13 | 2009-01-07 | 哈尔滨工业大学 | Continuous heat supply phase-change energy storage defrosting system |
| JP2011153812A (en) * | 2010-07-08 | 2011-08-11 | Panasonic Corp | Refrigerating cycle device |
| CN201992818U (en) * | 2011-03-16 | 2011-09-28 | 江苏浴普太阳能有限公司 | Waste heat recovery system of compressor of heat pump water heater |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0331666A (en) * | 1989-06-28 | 1991-02-12 | Matsushita Electric Ind Co Ltd | Heat pump type air conditioner |
-
2012
- 2012-02-09 CN CN 201210029097 patent/CN102538272B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2156453Y (en) * | 1993-03-12 | 1994-02-16 | 康狄恩 | Defrost device for freezer |
| JP3031666B2 (en) * | 1997-03-17 | 2000-04-10 | 株式会社パイロット | Chip structure |
| CN2482652Y (en) * | 2001-05-23 | 2002-03-20 | 广东科龙电器股份有限公司 | Thermal storage heat pump air conditioner |
| CN1403756A (en) * | 2001-08-29 | 2003-03-19 | 广东科龙电器股份有限公司 | Uninterrupted heating process and air conditioning system |
| CN1757995A (en) * | 2004-10-08 | 2006-04-12 | 松下电器产业株式会社 | Air conditioner |
| JP2008196798A (en) * | 2007-02-14 | 2008-08-28 | Matsushita Electric Ind Co Ltd | Air conditioner |
| CN101338960A (en) * | 2008-08-13 | 2009-01-07 | 哈尔滨工业大学 | Continuous heat supply phase-change energy storage defrosting system |
| JP2011153812A (en) * | 2010-07-08 | 2011-08-11 | Panasonic Corp | Refrigerating cycle device |
| CN201992818U (en) * | 2011-03-16 | 2011-09-28 | 江苏浴普太阳能有限公司 | Waste heat recovery system of compressor of heat pump water heater |
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| CN102538272A (en) | 2012-07-04 |
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Effective date of registration: 20150609 Address after: 528311 Beijiao, Guangdong, Shunde Town, Penglai Road, Industrial Avenue, Patentee after: GD MIDEA HEATING & VENTILATING EQUIPMENT Co.,Ltd. Address before: 528311, Guangdong, Foshan Town, Shunde District, Beijiao, 6 beautiful avenue, beautiful headquarters building, B District, 26 - 28 floor Patentee before: MIDEA GROUP Co.,Ltd. |