CN104061723A - Air conditioning system - Google Patents
Air conditioning system Download PDFInfo
- Publication number
- CN104061723A CN104061723A CN201410253464.3A CN201410253464A CN104061723A CN 104061723 A CN104061723 A CN 104061723A CN 201410253464 A CN201410253464 A CN 201410253464A CN 104061723 A CN104061723 A CN 104061723A
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- Prior art keywords
- valve
- compressor
- conditioning system
- air
- liquid separator
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 32
- 239000007788 liquid Substances 0.000 claims abstract description 28
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 238000005057 refrigeration Methods 0.000 abstract description 3
- 239000003507 refrigerant Substances 0.000 description 18
- 230000005484 gravity Effects 0.000 description 8
- 239000002826 coolant Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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- Magnetically Actuated Valves (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Compressor (AREA)
Abstract
The invention provides an air conditioning system which comprises a first heat exchanger, a second heat exchanger, a compressor, a first throttling device, a first electromagnetic valve, a second electromagnetic valve, a one-way valve and a gas-liquid separator, wherein the compressor, the first heat exchanger, the first throttling device, the second heat exchanger and the gas-liquid separator are sequentially connected to form a refrigeration loop, the compressor comprises an upper cylinder and a lower cylinder, the first electromagnetic valve is connected in series between an exhaust port of the compressor and an air suction end of the lower cylinder, the second electromagnetic valve is connected in series between an inlet of the gas-liquid separator and an air suction end of the lower cylinder, the one-way valve is connected in series between a first outlet of the gas-liquid separator and an air suction end of the lower cylinder, the opening direction of the one-way valve is downward, and a second outlet of the gas. According to the air conditioning system, the single and double cylinders of the compressor are switched by the matching of the one-way valve and the electromagnetic valve, the opening direction of the one-way valve is downward, and the situations of generating noise and damaging the valve core can be avoided when the valve core is opened.
Description
Technical field
The present invention relates to refrigerating field, relate in particular to a kind of air-conditioning system.
Background technology
In prior art, often by regulating the rotating speed of compressor or/and the transfiguration of compressor regulates single discharge capacity to realize the adjusting of compressor displacement, existing frequency conversion transfiguration air-conditioning system, compressor is realized single cylinder or twin-tub operation, but at compressor during in twin-tub, low-frequency operation state, check valve acts frequently, and very easily occurs the situation of noise and damage spool.
Summary of the invention
In view of the present situation of prior art, the object of the present invention is to provide a kind of air-conditioning system, by the cooperation of check valve and magnetic valve, realize the switching between compressor list twin-tub; The opening direction of check valve is downward, has avoided check valve to produce the situation of noise and damage spool.For achieving the above object, technical scheme of the present invention is as follows:
A kind of air-conditioning system, comprise First Heat Exchanger, the second heat exchanger, compressor and first throttle device, the first magnetic valve, the second magnetic valve, check valve and gas-liquid separator, described compressor, described First Heat Exchanger, described first throttle device, described the second heat exchanger and described gas-liquid separator are connected to form refrigerating circuit in turn, described compressor comprises upper cylinder and lower cylinder, described the first magnetic valve is connected between the exhaust outlet of described compressor and the suction end of described lower cylinder, described the second magnetic valve is connected between the entrance of described gas-liquid separator and the suction end of described lower cylinder, described check valve is connected between first outlet and the suction end of described lower cylinder of described gas-liquid separator, the opening direction of described check valve is downward, the second outlet of described gas-liquid separator is communicated with the suction end of described upper cylinder.
In an embodiment, described air-conditioning system also comprises the second throttling arrangement therein, and described the second throttling arrangement is connected between described the second magnetic valve and the entrance of described gas-liquid separator.
In an embodiment, described air-conditioning system also comprises cross valve therein, and described cross valve is connected in described refrigerating circuit, and described cross valve has first to fourth valve port; Described the first valve port is connected to the exhaust outlet of described compressor, and described the second valve port is connected to First Heat Exchanger, and described the 3rd valve port is connected to the entrance of described gas-liquid separator, and described the 4th valve port is connected to described the second heat exchanger.
In an embodiment, described compressor is frequency conversion positive displacement compressor therein.
In an embodiment, described check valve comprises spool and valve seat therein, and described spool is placed in the cavity of described valve seat, and described spool can move up and down by relatively described valve seat, when described spool is placed in the upper end of described cavity described in closed check valve.
In an embodiment, described air-conditioning system has single cylinder operational mode therein, and under described single cylinder operational mode, described the first magnetic valve is opened, described the second closed electromagnetic valve, thus making described upper cylinder work, described lower cylinder quits work.
Therein in an embodiment, described air-conditioning system has twin-tub operational mode, under described twin-tub operational mode, and described the first closed electromagnetic valve, described the second magnetic valve cuts out after described check valve conducting, thereby described upper cylinder and described lower cylinder are all worked.
The invention has the beneficial effects as follows:
Air-conditioning system of the present invention, by the cooperation of check valve and magnetic valve, realizes the switching between compressor list twin-tub, thereby has realized the transfiguration of compressor.The opening direction of check valve is downward, and without closing suction, in the time that twin-tub moves, due to Action of Gravity Field, spool drops on valve seat, and check valve is in opening, refrigerant is realized circulation, in the time that single cylinder moves, because check valve bottom is high pressure refrigerant, spool is pushed into top seal mouth, check valve is in cut-off state, and refrigerant can not circulate.Spool is only subject to the Action of Gravity Field of spool in the time opening like this, there will not be reciprocating motion, also can not produce noise and damage spool.
Brief description of the drawings
Fig. 1 is the closed circuit schematic diagram of air-conditioning system one embodiment of the present invention;
Fig. 2 is the structural representation of check valve shown in Fig. 1 in the time of opening;
Fig. 3 is the structural representation of check valve shown in Fig. 1 in off position time.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, air-conditioning system of the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only for explaining the present invention, is not intended to limit the present invention.
Referring to figs. 1 through Fig. 3, air-conditioning system one embodiment of the present invention comprises compressor 1, First Heat Exchanger 4 (outdoor heat converter), the second heat exchanger 2 (indoor heat converter) and first throttle device 8, the first magnetic valve 5, the second magnetic valve 6, check valve 7 and gas-liquid separator 9, compressor 1, First Heat Exchanger 4, first throttle device 8, the second heat exchanger 2 and gas-liquid separator 9 are connected to form refrigerating circuit in turn, compressor 1 comprises upper cylinder and lower cylinder, the first magnetic valve 5 is connected between the exhaust outlet of compressor 1 and the suction end of described lower cylinder, the second magnetic valve 6 is connected between the entrance of gas-liquid separator 9 and the suction end of described lower cylinder, described check valve 7 is connected between first outlet and the suction end of described lower cylinder of described gas-liquid separator 9, described check valve 7 opening directions are downward, the second outlet of described gas-liquid separator 9 is communicated with the suction end of described upper cylinder.Wherein, compressor 1 is frequency conversion positive displacement compressor.Check valve 7 comprises valve seat 71 and spool 72, and spool 72 is placed in the cavity of valve seat 71, and spool 72 relatively valve seat 71 moves up and down, and when spool 72 is placed in the upper end of described cavity, check valve 7 is in closed condition.The opening direction of check valve 7 is downward, and without closing suction, due to self gravitation effect, spool 72 drops on valve seat 71, and check valve 7 is in opening, and refrigerant is realized circulation, and as shown in Figure 2, in figure, the direction of arrow represents that refrigerant flows to; In the time that the bottom of check valve 7 is high pressure refrigerant, refrigerant is pushed into spool 72 upper end (top seal mouth) of the described cavity in valve seat 71, and check valve 7 is in cut-off state, and refrigerant can not circulate, as shown in Figure 3.Spool 72 is in the time opening like this, gaseous coolant flows to identical with spool 72 gravity directions when air-breathing, check valve is opened without the gravity that overcomes spool 72, even due to the existence of compressor frequency, air-breathing is intermittent, check valve two ends air pressure can change by generating period, also can not cause the reciprocating motion of spool 72.There will not be reciprocating motion, also just can not produce the situation of noise and damage spool.
Preferably, between the second magnetic valve 6 and the entrance of gas-liquid separator 9, be also in series with the second throttling arrangement 10, the second magnetic valve 6 is in the time of opening, and the second throttling arrangement 10 carries out reducing pressure by regulating flow to the refrigerant through the second magnetic valve 6, thus the pressure at balance check valve two ends Shang Xia 7.
As a kind of embodiment, air-conditioning system is also provided with cross valve 3, cross valve 3 is connected in the refrigerating circuit of air-conditioning system, cross valve 3 has first to fourth valve port, the first valve port D is connected to the exhaust outlet of compressor 1, the second valve port E is connected to First Heat Exchanger 4, the three valve port S and is connected to the entrance of gas-liquid separator 9, and the 4th valve port C is connected to the second heat exchanger 2.Cross valve 3 is set, makes air-conditioning system can carry out the switching of refrigeration mode and heating mode; Air-conditioning system in the time of refrigeration mode, the first valve port D and the second valve port E conducting, the 3rd valve port S and the 4th valve port C conducting; Air-conditioning system in the time of heating mode, the first valve port D and the 4th valve port C conducting, the second valve port E and the 3rd valve port S conducting.
The air-conditioning system of above embodiment has single cylinder operational mode and twin-tub operational mode, specific as follows:
(1) single cylinder operational mode
Under single cylinder operational mode, the first magnetic valve 5 is opened, the second electromagnetism 6 is closed, high pressure refrigerant flows to the suction end of lower suction cylinder through the first magnetic valve 5, now the bottom of check valve 7 is high pressure, the top of check valve 7 is low pressure, and check valve 7 is cut-off state, and the gaseous coolant in gas-liquid separator 9 cannot enter the lower cylinder of compressor 1.And the suction end of the lower cylinder of compressor 1 is provided with pressure protective device conventionally, stop high pressure refrigerant to enter in lower cylinder and compress, thereby only have upper cylinder work, and lower cylinder quits work, now compressor 1 is single cylinder operation.
(2) twin-tub operational mode
Under twin-tub operational mode, the first magnetic valve 5 cuts out, the second magnetic valve 6 is opened, low pressure refrigerant flows to the lower cylinder suction end of compressor through the second magnetic valve 6, now the bottom of check valve 7 and top are low pressure, spool 72 is displaced downwardly to the lower end of valve seat 71 in the effect of self gravitation, check valve 7 is conducting state, refrigerant in gas-liquid separator 9 is respectively from the first outlet and the second outlet effluent gases liquid/gas separator 9, the refrigerant flowing out from the first outlet enters the lower cylinder of compressor 1 after check valve 7, the refrigerant flowing out from the second outlet enters the upper cylinder of compressor 1, thereby upper cylinder and the lower cylinder of compressor 1 are all worked, now compressor 1 is twin-tub operation, when check valve 7 is opened (conducting), compressor is after twin-tub running status, the second magnetic valve 6 cuts out.
The air-conditioning system of above-described embodiment, by the cooperation of check valve and magnetic valve, realizes the switching between compressor list twin-tub, thereby has realized the transfiguration of compressor.The opening direction of check valve is downward, and need not close suction, in the time that twin-tub moves, due to Action of Gravity Field, spool drops on valve seat, check valve is in opening, refrigerant is realized circulation, and gaseous coolant flows to identically with spool 72 gravity directions when air-breathing, and check valve is opened without the gravity that overcomes spool 72, even due to the existence of compressor frequency, air-breathing is intermittent, and check valve two ends air pressure can change by generating period, also can not cause the reciprocating motion of spool 72.In the time that single cylinder moves, because check valve bottom is high pressure refrigerant, spool is pushed into top seal mouth, check valve is in cut-off state, and refrigerant can not circulate.Spool is only subject to the Action of Gravity Field of spool in the time opening like this, there will not be reciprocating motion, also can not produce noise and damage spool.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (7)
1. an air-conditioning system, is characterized in that:
Comprise First Heat Exchanger, the second heat exchanger, compressor and first throttle device, the first magnetic valve, the second magnetic valve, check valve and gas-liquid separator, described compressor, described First Heat Exchanger, described first throttle device, described the second heat exchanger and described gas-liquid separator are connected to form refrigerating circuit in turn, described compressor comprises upper cylinder and lower cylinder, described the first magnetic valve is connected between the exhaust outlet of described compressor and the suction end of described lower cylinder, described the second magnetic valve is connected between the entrance of described gas-liquid separator and the suction end of described lower cylinder, described check valve is connected between first outlet and the suction end of described lower cylinder of described gas-liquid separator, the opening direction of described check valve is downward, the second outlet of described gas-liquid separator is communicated with the suction end of described upper cylinder.
2. air-conditioning system according to claim 1, is characterized in that:
Also comprise the second throttling arrangement, described the second throttling arrangement is connected between described the second magnetic valve and the entrance of described gas-liquid separator.
3. air-conditioning system according to claim 2, is characterized in that:
Also comprise cross valve, described cross valve is connected in described refrigerating circuit, and described cross valve has first to fourth valve port; Described the first valve port is connected to the exhaust outlet of described compressor, and described the second valve port is connected to First Heat Exchanger, and described the 3rd valve port is connected to the entrance of described gas-liquid separator, and described the 4th valve port is connected to described the second heat exchanger.
4. air-conditioning system according to claim 1, is characterized in that:
Described compressor is frequency conversion positive displacement compressor.
5. air-conditioning system according to claim 1, is characterized in that:
Described check valve comprises spool and valve seat, and described spool is placed in the cavity of described valve seat, and described spool can move up and down by relatively described valve seat, when described spool is placed in the upper end of described cavity described in closed check valve.
6. according to the air-conditioning system described in claim 1-5 any one, it is characterized in that:
Described air-conditioning system has single cylinder operational mode, and under described single cylinder operational mode, described the first magnetic valve is opened, described the second closed electromagnetic valve, thus making described upper cylinder work, described lower cylinder quits work.
7. according to the air-conditioning system described in claim 1-5 any one, it is characterized in that:
Described air-conditioning system has twin-tub operational mode, under described twin-tub operational mode, and described the first closed electromagnetic valve, described the second magnetic valve cuts out after described check valve conducting, thereby described upper cylinder and described lower cylinder are all worked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410253464.3A CN104061723B (en) | 2014-06-09 | 2014-06-09 | Air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410253464.3A CN104061723B (en) | 2014-06-09 | 2014-06-09 | Air conditioning system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104061723A true CN104061723A (en) | 2014-09-24 |
| CN104061723B CN104061723B (en) | 2016-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410253464.3A Active CN104061723B (en) | 2014-06-09 | 2014-06-09 | Air conditioning system |
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| CN (1) | CN104061723B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015096539A1 (en) * | 2013-12-24 | 2015-07-02 | 珠海格力电器股份有限公司 | Air-conditioning system and method for controlling same |
| CN106642306A (en) * | 2015-10-28 | 2017-05-10 | 上海日立电器有限公司 | Air conditioning system |
| WO2019000869A1 (en) * | 2017-06-30 | 2019-01-03 | 广东美的制冷设备有限公司 | Air conditioning system and air conditioning system control method |
| CN111486609A (en) * | 2020-04-02 | 2020-08-04 | 珠海格力节能环保制冷技术研究中心有限公司 | Air conditioning system and control method |
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| JPH0861533A (en) * | 1994-08-17 | 1996-03-08 | Nippon Dennetsu Co Ltd | Check valve |
| JP2000346474A (en) * | 1999-06-03 | 2000-12-15 | Daikin Ind Ltd | Refrigerator |
| JP2010071537A (en) * | 2008-09-17 | 2010-04-02 | Daikin Ind Ltd | Electromagnetic induction heating unit and air conditioner |
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| JP4473202B2 (en) * | 2005-09-28 | 2010-06-02 | 東芝キヤリア株式会社 | Air conditioner |
| CN103574966A (en) * | 2012-07-30 | 2014-02-12 | 珠海格力电器股份有限公司 | Heat pump type air conditioning system and defrosting method thereof |
| CN103807917A (en) * | 2012-11-08 | 2014-05-21 | 珠海格力电器股份有限公司 | Air conditioner and air supply control method applied to same |
| CN203964472U (en) * | 2014-06-09 | 2014-11-26 | 珠海格力电器股份有限公司 | Air conditioning system |
-
2014
- 2014-06-09 CN CN201410253464.3A patent/CN104061723B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0861533A (en) * | 1994-08-17 | 1996-03-08 | Nippon Dennetsu Co Ltd | Check valve |
| JP2000346474A (en) * | 1999-06-03 | 2000-12-15 | Daikin Ind Ltd | Refrigerator |
| JP4473202B2 (en) * | 2005-09-28 | 2010-06-02 | 東芝キヤリア株式会社 | Air conditioner |
| JP2010071537A (en) * | 2008-09-17 | 2010-04-02 | Daikin Ind Ltd | Electromagnetic induction heating unit and air conditioner |
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| CN203964472U (en) * | 2014-06-09 | 2014-11-26 | 珠海格力电器股份有限公司 | Air conditioning system |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015096539A1 (en) * | 2013-12-24 | 2015-07-02 | 珠海格力电器股份有限公司 | Air-conditioning system and method for controlling same |
| CN106642306A (en) * | 2015-10-28 | 2017-05-10 | 上海日立电器有限公司 | Air conditioning system |
| CN106642306B (en) * | 2015-10-28 | 2019-08-09 | 上海海立电器有限公司 | A kind of air-conditioning system |
| WO2019000869A1 (en) * | 2017-06-30 | 2019-01-03 | 广东美的制冷设备有限公司 | Air conditioning system and air conditioning system control method |
| CN111486609A (en) * | 2020-04-02 | 2020-08-04 | 珠海格力节能环保制冷技术研究中心有限公司 | Air conditioning system and control method |
| CN111486609B (en) * | 2020-04-02 | 2021-10-08 | 珠海格力节能环保制冷技术研究中心有限公司 | Air conditioning system and control method |
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| Publication number | Publication date |
|---|---|
| CN104061723B (en) | 2016-05-04 |
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