CN103307823A - Split type room air conditioner refrigeration system and method for filling refrigerant into same - Google Patents
Split type room air conditioner refrigeration system and method for filling refrigerant into same Download PDFInfo
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- CN103307823A CN103307823A CN2013102359300A CN201310235930A CN103307823A CN 103307823 A CN103307823 A CN 103307823A CN 2013102359300 A CN2013102359300 A CN 2013102359300A CN 201310235930 A CN201310235930 A CN 201310235930A CN 103307823 A CN103307823 A CN 103307823A
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Abstract
The invention discloses a split type room air conditioner refrigeration system which comprises a compressor (1), an indoor heat exchanger (2), an outdoor heat exchanger (3), a first stop valve (4), a second stop valve (5), a four-way reversing valve (6) and a throttling element (7), wherein a firs transfer passage and a second transfer passage are arranged between the indoor heat exchanger (2) and the outdoor heat exchanger (3) respectively. The invention further discloses a method for filling a refrigerant into the split type room air conditioner refrigeration system. When the R290 refrigerant is filled into the system through the first transfer passage, a valve rod of the first stop valve (4) is opened, and the filling process work is completed; and when the R290 refrigerant is filled into the system through the second transfer passage, a valve rod of the second stop valve (5) is opened, and the filling process work is completed.
Description
Technical field
The present invention relates to the method for a kind of split type room air conditioner refrigeration system and this system's charging refrigerant.
Background technology
The main cold-producing medium of room air conditioner is R22 and R410a at present, because R22 ozone layer damped expoential ODP and greenhouse exponential quantity GWP are higher, Montreal Protocol on Substances that Deplete the Ozone Layer requirement according to international community's signature is just beginning progressively to eliminate.Although R410a ozone layer damped expoential ODP is 0, the greenhouse index is still higher, belongs to the gas that needs reduction of discharging.R290 is natural carbon-hydrogen refrigerant, is 0 to ozone layer damped expoential ODP value, and greenhouse exponential quantity GWP is 20, and thermal performance is desirable alternative refrigerant in the room air conditioner near R22.But R290 has flammable and low burning lower limit, aerial explosion limit is 2.1%-9.5% (V/V), burning-point is 450-470 ℃, security is poor, in the at present split type room air conditioner design, refrigerant charging geat operated by rotary motion arranges special filled interface element on the outdoor heat exchanger or between outdoor heat exchanger and restricting element, use welding method to seal its pipeline after filling and fill mouth, fill the technique more complicated.
Summary of the invention
The invention provides the method for a kind of split type room air conditioner refrigeration system and this system's charging refrigerant, it has not only guaranteed to adopt the split type room air conditioner in the mill refrigerant charging security of R290 cold-producing medium effectively, and the security can slow down refrigerant charging the time.
The present invention has adopted following technical scheme: a kind of split type room air conditioner refrigeration system, it comprises that it comprises compressor, indoor heat exchanger, outdoor heat exchanger, the first stop valve, the second stop valve, four-way change-over valve and restricting element, be respectively equipped with the first transfer passage and the second transfer passage between indoor heat exchanger and the outdoor heat exchanger, on the pipeline of described the first transfer passage by indoor to outdoor first indoor and outdoor connecting pipe that is provided with successively, the first stop valve, four-way change-over valve and compressor, the port I of indoor heat exchanger is successively by the first indoor and outdoor connecting pipe, the first stop valve, four-way change-over valve is connected with the port I of outdoor heat exchanger with compressor, the input of described the first stop valve also is connected with R290 refrigerant charging joint I, one end of R290 refrigerant charging joint I and the input of the first stop valve are sealed attachment, and the other end of R290 refrigerant charging joint I docks with filled machine; On the pipeline of described the second transfer passage by indoor to outdoor the second indoor and outdoor connecting pipe, the second stop valve and the restricting element of being provided with successively, the port II of indoor heat exchanger is connected with the port II of outdoor heat exchanger with restricting element by the second indoor and outdoor connecting pipe, the second stop valve successively, the input of described the first stop valve also is connected with R290 refrigerant charging joint II, one end of R290 refrigerant charging joint II and the input of the second stop valve are sealed attachment, and the other end of R290 refrigerant charging joint II docks with filled machine.
The output of described the first stop valve is connected with the input port I of four-way change-over valve, the output port I of four-way change-over valve is connected with the input of compressor, the input port II of the output port of compressor and four-way change-over valve, the output port II of four-way change-over valve is connected with the port I of outdoor heat exchanger.
The invention also discloses a kind of method of split type room air conditioner refrigeration system charging refrigerant, it may further comprise the steps: when the R290 cold-producing medium injects by the first transfer passage, open the valve rod of the first stop valve, the machine of filling is with the input input of R290 cooling fluid by the first stop valve, then successively through entering in the compressor after the input port I of the first stop valve, four-way change-over valve and the output port I, then the output port by compressor flows to outdoor heat exchanger through behind the four-way change-over valve again; When the R290 cold-producing medium injects by the second transfer passage, open the valve rod of the second stop valve, the machine that fills is with the input input of R290 cooling fluid by the second stop valve, then successively through flowing to outdoor heat exchanger behind the second stop valve and the restricting element.
The present invention has following beneficial effect: the technique that the present invention has adopted a kind of split type room air conditioner refrigeration system of the R290 of employing cold-producing medium and safety fills the R290 cold-producing medium in this refrigeration system.Because R290 has the very large latent heat of vaporization, system's charging amount greatly reduces, and only is the 40-45% of existing R22 cold-producing medium under the identical systems; R290 is combustible refrigerant in addition, and safe filled technique need to be arranged.The present invention is according to the less characteristics of R290 air-conditioner charging amount, utilize the first stop valve or second stop valve of detachable air conditioner system, be connected on first stop valve or the second stop valve of outdoor machine of body-separated air-conditioner group by R290 refrigerant charging joint when filling, the R290 cold-producing medium is entered in the air-conditioner outdoor unit group system, after filled the finishing, the manual-lock stop valve.The present invention need not carry out welded closure and fill a mouthful operation behind the R290 refrigerant charging, guaranteed that flammable refrigeration R290 fills the security of technique, and is simple to operation, adapts to batch production.
Description of drawings
Fig. 1 is structural representation of the present invention.
The specific embodiment
In Fig. 1, the invention provides a kind of split type room air conditioner refrigeration system, it comprises that it comprises compressor 1, indoor heat exchanger 2, outdoor heat exchanger 3, the first stop valve 4, the second stop valve 5, four-way change-over valve 6 and restricting element 7, be respectively equipped with the first transfer passage and the second transfer passage between indoor heat exchanger 2 and the outdoor heat exchanger 3, on the pipeline 8 of described the first transfer passage by indoor to outdoor first indoor and outdoor connecting pipe 9 that is provided with successively, the first stop valve 4, four-way change-over valve 6 and compressor 1, the port I of indoor heat exchanger 2 is successively by the first indoor and outdoor connecting pipe 9, the first stop valve 4, four-way change-over valve 6 is connected with compressor and is connected with the port I of outdoor heat exchanger 3, the output of the first stop valve 4 is connected with the input port I of four-way change-over valve 6, the output port I of four-way change-over valve 6 is connected with the input of compressor 1, the input port II of the output port of compressor 1 and four-way change-over valve 6, the output port II of four-way change-over valve 6 is connected with the port I of outdoor heat exchanger 3, the input of described the first stop valve 4 also is connected with R290 refrigerant charging joint I, one end of R290 refrigerant charging joint I and the input of the first stop valve 4 are sealed attachment, and the other end of R290 refrigerant charging joint I docks with filled machine; On the pipeline 11 of described the second transfer passage by indoor to outdoor the second indoor and outdoor connecting pipe 10, the second stop valve 5 and the restricting element 7 of being provided with successively, the port II of indoor heat exchanger 2 is passed through the second indoor and outdoor connecting pipe 10 successively, the second stop valve 5 is connected with restricting element is connected with the port II of outdoor heat exchanger 3, the input of described the second stop valve 5 also is connected with R290 refrigerant charging joint II, one end of R290 refrigerant charging joint II and the input of the second stop valve 5 are sealed attachment, and the other end of R290 refrigerant charging joint II docks with filled machine.
The invention discloses a kind of method of split type room air conditioner refrigeration system charging refrigerant, it may further comprise the steps: when the R290 cold-producing medium injects by the first transfer passage, open the valve rod of the first stop valve 4, the input that the machine of filling injects the first stop valve 4 with the R290 cooling fluid by R290 refrigerant charging joint I is inputted, then successively through the first stop valve 4, enter in the compressor 1 after the input port I of four-way change-over valve 6 and the output port I, then the output port by compressor 1 flows to outdoor heat exchanger 3 through behind the four-way change-over valve 6 again, unload R290 refrigerant charging joint I, both finished the operation work that fills; When the R290 cold-producing medium injects by the second transfer passage, open the valve rod of the second stop valve 4, the input that the machine of filling injects the first stop valve 4 with the R290 cooling fluid by R290 refrigerant charging joint II is inputted, then successively through flowing to outdoor heat exchanger 3 behind the second stop valve 4 and the restricting element 7, after filled the finishing, close the second stop valve 4, unload R290 refrigerant charging joint II, both finished the operation work that fills.
Claims (3)
1. split type room air conditioner refrigeration system, it is characterized in that it comprises that it comprises compressor (1), indoor heat exchanger (2), outdoor heat exchanger (3), the first stop valve (4), the second stop valve (5), four-way change-over valve (6) and restricting element (7), be respectively equipped with the first transfer passage and the second transfer passage between indoor heat exchanger (2) and the outdoor heat exchanger (3), the pipeline of described the first transfer passage (8) is gone up by indoor to outdoor the first indoor and outdoor connecting pipe (9) that is provided with successively, the first stop valve (4), four-way change-over valve (6) and compressor (1), the port I of indoor heat exchanger (2) is successively by the first indoor and outdoor connecting pipe (9), the first stop valve (4), four-way change-over valve (6) is connected 1 with compressor) be connected with the port I of outdoor heat exchanger (3), the input of described the first stop valve (4) also is connected with R290 refrigerant charging joint I, one end of R290 refrigerant charging joint I and the input of the first stop valve (4) are sealed attachment, and the other end of R290 refrigerant charging joint I docks with filled machine; The pipeline of described the second transfer passage (11) is gone up by indoor to outdoor the second indoor and outdoor connecting pipe (10) that is provided with successively, the second stop valve (5) and restricting element (7), the port II of indoor heat exchanger (2) is successively by the second indoor and outdoor connecting pipe (10), the second stop valve (5) is connected 7 with restricting element) be connected with the port II of outdoor heat exchanger (3), the input of described the second stop valve (5) also is connected with R290 refrigerant charging joint II, one end of R290 refrigerant charging joint II and the input of the second stop valve (5) are sealed attachment, and the other end of R290 refrigerant charging joint II docks with filled machine.
2. split type room air conditioner refrigeration system according to claim 1, the output that it is characterized in that described the first stop valve (4) is connected with the input port I of four-way change-over valve (6), the output port I of four-way change-over valve (6) is connected with the input of compressor (1), the input port II of the output port of compressor (1) and four-way change-over valve (6), the output port II of four-way change-over valve (6) is connected with the port I of outdoor heat exchanger (3).
3. the method for a split type room air conditioner refrigeration system charging refrigerant, it may further comprise the steps: when the R290 cold-producing medium injects by the first transfer passage, open the valve rod of the first stop valve (4), the input that the machine of filling injects the first stop valve (4) with the R290 cooling fluid by R290 refrigerant charging joint I is inputted, then successively through the first stop valve (4), enter after the input port I of four-way change-over valve (6) and the output port I in the compressor (1), then flow to outdoor heat exchanger (3) after passing through again four-way change-over valve (6) by the output port of compressor (1), unload R290 refrigerant charging joint I, both finished the operation work that fills; When the R290 cold-producing medium injects by the second transfer passage, open the valve rod of the second stop valve (4), the input that the machine of filling injects the first stop valve (4) with the R290 cooling fluid by R290 refrigerant charging joint II is inputted, then successively through flowing to outdoor heat exchanger (3) behind the second stop valve (4) and the restricting element (7), after filled the finishing, close the second stop valve (4), unload R290 refrigerant charging joint II, both finished the operation work that fills.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2013102359300A CN103307823A (en) | 2013-06-16 | 2013-06-16 | Split type room air conditioner refrigeration system and method for filling refrigerant into same |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013102359300A CN103307823A (en) | 2013-06-16 | 2013-06-16 | Split type room air conditioner refrigeration system and method for filling refrigerant into same |
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| CN103307823A true CN103307823A (en) | 2013-09-18 |
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| CN2013102359300A Pending CN103307823A (en) | 2013-06-16 | 2013-06-16 | Split type room air conditioner refrigeration system and method for filling refrigerant into same |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108286846A (en) * | 2017-12-29 | 2018-07-17 | 海信（山东）空调有限公司 | A kind of air conditioner coolant method for filling and air-conditioning |
| CN108426319A (en) * | 2017-02-13 | 2018-08-21 | 上海海立电器有限公司 | A kind of fresh air conditioner all-in-one machine |
| CN112113372A (en) * | 2019-06-20 | 2020-12-22 | 中科赛凌(中山)低温设备有限公司 | Refrigerant charging method and system |
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| JPH08210736A (en) * | 1995-02-03 | 1996-08-20 | Sanyo Electric Co Ltd | Non-azeotrope refrigerant filling system and filling method |
| JP2001241814A (en) * | 2000-03-01 | 2001-09-07 | Sharp Corp | Air conditioner and refrigerant filling method |
| CN202361519U (en) * | 2011-11-28 | 2012-08-01 | 宁波奥克斯空调有限公司 | Cooling medium filling device of split-type air conditioner |
| CN102645063A (en) * | 2006-07-21 | 2012-08-22 | 大金工业株式会社 | Refrigerant charging method for refrigeration device using carbon dioxide as refrigerant |
| CN202835964U (en) * | 2012-07-31 | 2013-03-27 | 宝钢发展有限公司 | Automatic addition device for refrigerant of air conditioner |
| CN203478764U (en) * | 2013-06-16 | 2014-03-12 | 江苏春兰制冷设备股份有限公司 | Split refrigerating system of indoor air conditioner |
-
2013
- 2013-06-16 CN CN2013102359300A patent/CN103307823A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08210736A (en) * | 1995-02-03 | 1996-08-20 | Sanyo Electric Co Ltd | Non-azeotrope refrigerant filling system and filling method |
| JP2001241814A (en) * | 2000-03-01 | 2001-09-07 | Sharp Corp | Air conditioner and refrigerant filling method |
| CN102645063A (en) * | 2006-07-21 | 2012-08-22 | 大金工业株式会社 | Refrigerant charging method for refrigeration device using carbon dioxide as refrigerant |
| CN202361519U (en) * | 2011-11-28 | 2012-08-01 | 宁波奥克斯空调有限公司 | Cooling medium filling device of split-type air conditioner |
| CN202835964U (en) * | 2012-07-31 | 2013-03-27 | 宝钢发展有限公司 | Automatic addition device for refrigerant of air conditioner |
| CN203478764U (en) * | 2013-06-16 | 2014-03-12 | 江苏春兰制冷设备股份有限公司 | Split refrigerating system of indoor air conditioner |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108426319A (en) * | 2017-02-13 | 2018-08-21 | 上海海立电器有限公司 | A kind of fresh air conditioner all-in-one machine |
| CN108286846A (en) * | 2017-12-29 | 2018-07-17 | 海信（山东）空调有限公司 | A kind of air conditioner coolant method for filling and air-conditioning |
| CN112113372A (en) * | 2019-06-20 | 2020-12-22 | 中科赛凌(中山)低温设备有限公司 | Refrigerant charging method and system |
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Application publication date: 20130918 |