CN102331040B - Freon-free direct-current frequency conversion air conditioner and control method - Google Patents
Freon-free direct-current frequency conversion air conditioner and control method Download PDFInfo
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- CN102331040B CN102331040B CN 201110223160 CN201110223160A CN102331040B CN 102331040 B CN102331040 B CN 102331040B CN 201110223160 CN201110223160 CN 201110223160 CN 201110223160 A CN201110223160 A CN 201110223160A CN 102331040 B CN102331040 B CN 102331040B
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Abstract
The invention provides a freon-free direct-current frequency conversion air conditioner and a control method. The air conditioner comprises a compressor, a liquid storage tank, a pipeline, a four-way reversing valve on the pipeline, a three-way valve, a two-way stop valve, a three-way stop valve, a drying filter, a capillary, an indoor unit evaporator and an outdoor unit condenser, and is characterized in that the inlet of the three-way valve is connected with the exhaust port of the compressor; a first outlet of the three-way valve is connected to the four-way reversing valve through the pipeline; and a second outlet of the three-way valve is connected to a first one-way throttle valve through the pipeline and is then connected to a liquid inlet pipeline of the indoor unit evaporator. According to the invention, the compressor can operate with high frequency under the outdoor high-temperature working condition, the refrigerant circulation rate is high, the load of the condenser is lowered, the utilization ratio of the evaporator is improved, and the refrigerating effect of the indoor unit is improved greatly. The refrigerating method provided by the invention is reasonable, and the refrigeration effect is good.
Description
Technical field
The invention belongs to air-conditioner manufacturing technology field, relate generally to the improvement of direct current varied-frequency air conditioner, is a kind of floride-free direct current varied-frequency air conditioner and control method specifically.
Background technology
The existing direct current varied-frequency air conditioner that uses the R410A refrigerant carries out release by reducing the compressor operating frequency when operation high temperature refrigeration, system's refrigerant circulation is little, and indoor evaporator affluence degree is big,
Poor refrigerating efficiency.
How to improve structure and the control mode of floride-free direct current varied-frequency air conditioner, can be when worst hot case the compressor operating high-frequency, refrigerant circulation is big, reduce condenser duty, improve the evaporimeter utilization rate, promote the indoor set refrigeration greatly, this is the present problem demanding prompt solution of the art.
Summary of the invention
The present invention provides a kind of floride-free direct current varied-frequency air conditioner for solving the problem that prior art exists, can be when worst hot case the compressor operating high-frequency, refrigerant circulation is big, reduces condenser duty, improves the evaporimeter utilization rate, promotes the indoor set refrigeration greatly; A kind of control method of floride-free direct current varied-frequency air conditioner also is provided, and the refrigerating method when outdoor environment is worst hot case is reasonable, good refrigeration effect.
The objective of the invention is to be achieved through the following technical solutions: a kind of floride-free direct current varied-frequency air conditioner, comprise compressor, fluid reservoir, pipeline, four-way change-over valve on the pipeline, triple valve, two logical stop valves, three-way cut-off valve, device for drying and filtering, capillary, indoor machine evaporation and outdoor condenser, the import that it is characterized in that described triple valve is connected with exhaust outlet of compressor, first outlet of described triple valve is connected to described four-way change-over valve by pipeline, and second outlet of described triple valve connects on the feed liquor pipeline that an one-way throttle valve is connected to indoor machine evaporation by pipeline.
To improvement of the technical scheme: other three interfaces of described four-way change-over valve are connected with fluid reservoir, condenser and evaporator outlet end respectively by three pipelines, are connected described three-way cut-off valve on the pipeline of connection four-way change-over valve and evaporator outlet end.
To further improvement in the technical proposal: described condenser is connected on the pipeline of indoor machine evaporation and sets gradually described device for drying and filtering, capillary, device for drying and filtering, two logical stop valves.
To further improvement in the technical proposal: described compressor is DC frequency-changeable compressor.
A kind of control method of floride-free direct current varied-frequency air conditioner, it is characterized in that: the one-way throttle valve that is connected between the feed liquor pipeline of exhaust outlet of compressor and indoor machine evaporation is as the bypass throttle mechanism, when outdoor environment is worst hot case, judge by automatically controlled outer shroud temperature sensor detected temperatures, enter the load removal refrigeration mode, triple valve second outlet is opened, the HTHP refrigerant of discharging from exhaust outlet of compressor divides two-way to flow out from triple valve, enter condenser from the triple valve first outlet outflow refrigerant through four-way change-over valve and carry out cooling condensation, the liquid refrigerants that flows out cryogenic high pressure from condenser enters capillary after by device for drying and filtering and carries out the throttling step-down, the gas-liquid two-phase refrigerant that flows out low-temp low-pressure from capillary after flowing through device for drying and filtering by two logical stop valves and pipeline inflow indoor machine evaporation; Flowing out refrigerant from triple valve second outlet enters one-way throttle valve and carries out the throttling step-down and flow into indoor machine evaporation by pipeline; Flow out refrigerant and flow out refrigerant from triple valve second outlet and converge and enter evaporimeter and evaporate heat absorption from triple valve first outlet, the gaseous coolant that flows out low-temp low-pressure from evaporimeter flows into four-way change-over valve by pipeline and three-way cut-off valve, flowing out refrigerant from four-way change-over valve compresses through fluid reservoir inflow compressor casing, refrigerant is compressed into the gas of HTHP and discharges by exhaust outlet of compressor, carries out circularly cooling so repeatedly.
The present invention compared with prior art has many advantages and good effect:
1, the present invention's compressor operating high-frequency when worst hot case, refrigerant circulation is big, reduces condenser duty, improves the evaporimeter utilization rate, and refrigeration system is more stable, promotes the indoor set refrigeration greatly.
2, the one-way throttle valve of the present invention's employing plays the throttling step-down.Use this device to have many good qualities in indoor set as throttle mechanism design: concentrating of structure, shortened the flow path of refrigerant, the noise that the vibrations of having avoided refrigerant to produce in flow in capillary tube cause is conducive to reduce the noise of air-conditioning system; The metal spool structure is conducive to heat transmission, eliminates the stifled phenomenon of ice, need not use device for drying and filtering.
3, the control method of a kind of floride-free direct current varied-frequency air conditioner of the present invention can be when worst hot case the compressor operating high-frequency, refrigerating method is reasonable, good refrigeration effect.
Description of drawings
Fig. 1 is the johning knot composition of a kind of floride-free direct current varied-frequency air conditioner embodiment of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is further described.
Referring to Fig. 1, the embodiment of a kind of floride-free direct current varied-frequency air conditioner of the present invention, comprise compressor 6, fluid reservoir, pipeline, four-way change-over valve 5 on the pipeline, triple valve 4, three-way cut-off valve 3, two logical stop valves 8, device for drying and filtering 9,11, capillary 10, indoor machine evaporation 1 and outdoor condenser 7, the import of described triple valve 4 is connected with compressor 6 exhaust outlets, the first outlet 4-1 of described triple valve 4 is connected to described four-way change-over valve 5 by pipeline, and the second outlet 4-2 of described triple valve 4 connects on the feed liquor pipeline that an one-way throttle valve 2 is connected to indoor machine evaporation 1 by pipeline.Other three interfaces of described four-way change-over valve 5 are connected with fluid reservoir, condenser 7 and evaporimeter 1 port of export respectively by three pipelines.Be connected described three-way cut-off valve 3 on the pipeline of connection four-way change-over valve 5 and evaporimeter 1 port of export.Described condenser 7 is connected to and is connected in series device for drying and filtering 11, capillary 10, device for drying and filtering 9, two logical stop valves 8 on the pipeline of indoor machine evaporation 1 successively.Above-mentioned compressor 6 is DC frequency-changeable compressor.
The embodiment of the control method of a kind of floride-free direct current varied-frequency air conditioner of the present invention, concrete grammar is as follows:
The one-way throttle valve 2 that is connected between compressor 6 exhaust outlets and indoor machine evaporation 1 feed liquor pipeline is as the bypass throttle mechanism, when outdoor environment is worst hot case, judge by automatically controlled outer shroud temperature sensor detected temperatures, enter the load removal refrigeration mode, triple valve 4 second outlet 4-2 open, the HTHP refrigerant of discharging from compressor 6 exhaust outlets flows out from 4 fens two-way of triple valve, enter condenser 7 from triple valve 4 first outlet 4-1 outflow refrigerants through four-way change-over valve 5 and carry out cooling condensation, the liquid refrigerants that flows out cryogenic high pressures from condenser 7 enters capillary 10 after by device for drying and filtering 11 and carries out the throttling step-down, and the gas-liquid two-phase refrigerant that flows out low-temp low-pressures from capillary 10 flows into indoor machine evaporation 1 by two logical stop valves 8 with pipeline flowing through device for drying and filtering 9 backs; Enter one-way throttle valve 2 from triple valve 4 second outlet 4-2 outflow refrigerants and carry out the throttling step-down by pipeline inflow indoor machine evaporation 1; Flow out refrigerants and flow out refrigerants from triple valve 4 second outlet 4-2 and converge and enter evaporimeter 1 and evaporate heat absorption from triple valve 4 first outlet 4-1, the gaseous coolant that flows out low-temp low-pressure from evaporimeter 1 flows into four-way change-over valve 5 by pipeline and three-way cut-off valve 3, flowing out refrigerant from four-way change-over valve 5 compresses through fluid reservoir inflow compressor 6 cylinder bodies, refrigerant is compressed into the gas of HTHP and discharges by compressor 6 exhaust outlets, carries out circularly cooling so repeatedly.
Certainly, above-mentioned explanation is not to be limitation of the present invention, and the present invention also is not limited to above-mentioned giving an example.Those skilled in the art are in essential scope of the present invention, and the variation of making, remodeling, interpolation or replacement also should belong to protection scope of the present invention.
Claims (1)
1. the control method of a floride-free direct current varied-frequency air conditioner, it is characterized in that: the one-way throttle valve that is connected between the feed liquor pipeline of exhaust outlet of compressor and indoor machine evaporation is as the bypass throttle mechanism, when outdoor environment is worst hot case, judge by automatically controlled outer shroud temperature sensor detected temperatures, enter the load removal refrigeration mode, triple valve second outlet is opened, the HTHP refrigerant of discharging from exhaust outlet of compressor divides two-way to flow out from triple valve, enter condenser from the triple valve first outlet outflow refrigerant through four-way change-over valve and carry out cooling condensation, the liquid refrigerants that flows out cryogenic high pressure from condenser enters capillary after by first device for drying and filtering and carries out the throttling step-down, the gas-liquid two-phase refrigerant that flows out low-temp low-pressure from capillary after flowing through second device for drying and filtering by two logical stop valves and pipeline inflow indoor machine evaporation; Flowing out refrigerant from triple valve second outlet enters one-way throttle valve and carries out the throttling step-down and flow into indoor machine evaporation by pipeline; Flow out refrigerant and flow out refrigerant from triple valve second outlet and converge and enter evaporimeter and evaporate heat absorption from triple valve first outlet, the gaseous coolant that flows out low-temp low-pressure from evaporimeter flows into four-way change-over valve by pipeline and three-way cut-off valve, flowing out refrigerant from four-way change-over valve compresses through fluid reservoir inflow compressor casing, refrigerant is compressed into the gas of HTHP and discharges by exhaust outlet of compressor, carries out circularly cooling so repeatedly.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110223160 CN102331040B (en) | 2011-08-05 | 2011-08-05 | Freon-free direct-current frequency conversion air conditioner and control method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110223160 CN102331040B (en) | 2011-08-05 | 2011-08-05 | Freon-free direct-current frequency conversion air conditioner and control method |
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| CN102331040A CN102331040A (en) | 2012-01-25 |
| CN102331040B true CN102331040B (en) | 2013-08-07 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105571076B (en) * | 2016-01-20 | 2019-08-20 | 青岛海尔空调电子有限公司 | A kind of control method of water-cooled multi-connected mechanism cold |
| CN108494315A (en) * | 2018-03-14 | 2018-09-04 | 铜仁学院 | A kind of comprehensive utilization solar energy method |
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| CN2443301Y (en) * | 2000-10-20 | 2001-08-15 | 鲍士雄 | Heat pump type air conditioning equipment |
| CN1598435A (en) * | 2004-07-22 | 2005-03-23 | 春兰(集团)公司 | Method for arranging refrigerant of heat pump air conditioner and air conditioner using said method thereof |
| CN2762014Y (en) * | 2005-01-08 | 2006-03-01 | 黄上立 | Energy-saving air conditioning water heater |
| CN2839912Y (en) * | 2005-10-14 | 2006-11-22 | 颜军玲 | Efficient heat pump refrigerating and heating apparatus |
| CN101592412A (en) * | 2009-07-01 | 2009-12-02 | 东南大学 | Adjustable multi-temperature refrigeration device |
| CN201715659U (en) * | 2010-06-30 | 2011-01-19 | 广东美的电器股份有限公司 | Air conditioner |
| CN202182592U (en) * | 2011-08-05 | 2012-04-04 | 海尔集团公司 | Freon-free DC inverter air conditioner |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08166140A (en) * | 1994-12-13 | 1996-06-25 | Mitsubishi Heavy Ind Ltd | Air conditioning equipment |
| JP3723244B2 (en) * | 1994-12-22 | 2005-12-07 | 三菱電機株式会社 | Air conditioner |
| JPH08189710A (en) * | 1995-01-10 | 1996-07-23 | Daikin Ind Ltd | Air conditioner |
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2443301Y (en) * | 2000-10-20 | 2001-08-15 | 鲍士雄 | Heat pump type air conditioning equipment |
| CN1598435A (en) * | 2004-07-22 | 2005-03-23 | 春兰(集团)公司 | Method for arranging refrigerant of heat pump air conditioner and air conditioner using said method thereof |
| CN2762014Y (en) * | 2005-01-08 | 2006-03-01 | 黄上立 | Energy-saving air conditioning water heater |
| CN2839912Y (en) * | 2005-10-14 | 2006-11-22 | 颜军玲 | Efficient heat pump refrigerating and heating apparatus |
| CN101592412A (en) * | 2009-07-01 | 2009-12-02 | 东南大学 | Adjustable multi-temperature refrigeration device |
| CN201715659U (en) * | 2010-06-30 | 2011-01-19 | 广东美的电器股份有限公司 | Air conditioner |
| CN202182592U (en) * | 2011-08-05 | 2012-04-04 | 海尔集团公司 | Freon-free DC inverter air conditioner |
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| CN102331040A (en) | 2012-01-25 |
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