CN1904515A - Commercial use air conditioner - Google Patents
Commercial use air conditioner Download PDFInfo
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- CN1904515A CN1904515A CN 200510014663 CN200510014663A CN1904515A CN 1904515 A CN1904515 A CN 1904515A CN 200510014663 CN200510014663 CN 200510014663 CN 200510014663 A CN200510014663 A CN 200510014663A CN 1904515 A CN1904515 A CN 1904515A
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- valve
- gas
- liquid separator
- indoor
- air conditioner
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Abstract
A kind of commercial air condition machine includes the compressor, the four-port valve, the boiler, the expanding valve, the condenser, the liquid storage pot, the second expanding valve, the gas-liquid separator, the electromagnetic valve and the check valve. The second expanding valve is between the condenser's outlet and the gas-liquid separator's inlet. The electromagnetic valve is between the gas-liquid separator's liquid spur and the expanding valve. The gas-liquid separator's gas spur is connected with the liquid storage pot's inlet. And the check valve is between the four-port valve and the boiler's inlet. The commercial air condition machine of this invention will use the method of turning off electromagnetic valve to cut off the supply boiler's cold medium in the indoor machine when the system is making hot and defrosting. At the same time, it opens the indoor machine's heater and indoor fan and then provides the hot gas to the indoor space. This can make the best use of the system's leak heat quantity. And it will not result to the evident descending of indoor temperature and will lower the energy consumption. It will lighten the compressor's burden and avoid the compressor's liquid shot phenomenon and improve hot exchange efficiency.
Description
Technical field
The present invention relates to a kind of air-conditioner, particularly relate to a kind of commercial use air conditioner.
Background technology
Air-conditioner is a kind of device that makes its inner refrigerant carry out the refrigeration of being made up of compression process, condensation process, expansion process and evaporation process or heat circulation.When air-conditioner carries out kind of refrigeration cycle, the refrigerant that becomes high-temperature high-pressure state through compressor compresses can flow to condenser under the guiding of cross valve, and in condenser, dispel the heat to the outside, when flowing through expansion valve, significantly reduce its temperature and pressure then, this low temperature, low pressure refrigerant can absorb heat when flowing through evaporimeter subsequently, flow back in the compressor again through fluid reservoir at last.Wherein, compression process, condensation process and expansion process are to carry out in the off-premises station of air-conditioner, and evaporation process then is to carry out under the effect of blowing fan in indoor set and evaporimeter.It is then opposite with above-mentioned kind of refrigeration cycle process to heat circulation.Air-conditioner is divided into domestic air conditioner and commercial use air conditioner usually.Wherein commercial use air conditioner mainly is used in the buildings such as office building, market.Fig. 1 is that the commercial use air conditioner of prior art is formed schematic diagram.As shown in Figure 1, the commercial use air conditioner of this prior art mainly comprises compressor 1, cross valve 2, evaporimeter 3, expansion valve 4, condenser 5 and fluid reservoir 6.Heat circulation time when winter, the refrigerant in the system will circulate according to the order of compressor 1, cross valve 2, evaporimeter 3, expansion valve 4, condenser 5 and fluid reservoir 6.In this cyclic process, carried out the indoor hot-air of heat exchange with refrigerant in the evaporimeter in the indoor set 3 and will send into the interior space by indoor fan, thereby indoor environment is remained under the suitable temperature, and cross when indoor temperature and also can utilize when low the electric heater that is provided with in the indoor set to heat air, and send into the interior space in the lump by indoor fan through heat exchange.But, there is following point in commercial use air conditioner with said structure: the condenser 5 that is arranged in off-premises station can be because internal-external temperature difference and produce condensed water on its surface when the refrigerant of portion and outdoor air carry out heat exchange within it, when winter outdoor temperature cross that this part condensed water just might be frozen in the surface of condenser 5 and produce frosting when low, thereby influence the heat exchanger effectiveness of condenser 5.When acquiring a certain degree, frosting must defrost, the interior control part of this air-conditioner this moment makes employing the method for cross valve 2 counteragents and changes system into refrigerating operaton, stop the running of indoor fan in the indoor set simultaneously, purpose is to prevent that the cold air that produces on the evaporimeter 3 in this process is blown into indoor by indoor fan.Even need continue for some time owing to this process like this, so the problem that indoor temperature obviously descends still unavoidably can occur.
Summary of the invention
In order to address the above problem, to the object of the present invention is to provide a kind ofly can prevent that indoor temperature obviously descends in the heating and defrosting process, and can save the energy and improve the commercial use air conditioner of heat exchanger effectiveness.
In order to achieve the above object, commercial use air conditioner provided by the invention comprises compressor, cross valve, evaporimeter, expansion valve, condenser and fluid reservoir; Described commercial use air conditioner also comprises the 2nd expansion valve, gas-liquid separator, magnetic valve and check valve; Wherein the 2nd expansion valve is connected between the inlet of the outlet of condenser and gas-liquid separator, magnetic valve is connected between the liquid outlet and expansion valve of gas-liquid separator, the gas discharge outlet of gas-liquid separator links to each other with the inlet of fluid reservoir, and check valve then is connected between the inlet of cross valve and fluid reservoir.
When carrying out the heating and defrosting operation, described closed electromagnetic valve, thereby refrigerant is without expansion valve and evaporimeter.
When carrying out the heating and defrosting operation, described check valve can stop refrigerant to flow to cross valve.
When can carrying out heating and defrosting in system, commercial use air conditioner provided by the invention utilize the method for closing magnetic valve to cut off the refrigerant that offers evaporimeter in the indoor set, and make refrigerant flow through gas-liquid separator and directly get back in the compressor, open heater and indoor fan in the indoor set simultaneously, thereby will offer the interior space by the air in the indoor set of heater heating, not only can make full use of the leaking heat of system like this, and can not cause the obvious decline of indoor temperature, and can cut down the consumption of energy, alleviate the load of compressor, avoid compressor liquid hit phenomenon and raising heat exchanger effectiveness to occur.
Description of drawings
Below in conjunction with the drawings and specific embodiments commercial use air conditioner provided by the invention is elaborated.The parts identical with prior art use identical symbol, and omit its explanation of carrying out.
Fig. 1 is that the commercial use air conditioner of prior art is formed schematic diagram.
Fig. 2 is that commercial use air conditioner provided by the invention is formed schematic diagram.
The specific embodiment
As shown in Figure 2, commercial use air conditioner provided by the invention comprises compressor 1, cross valve 2, evaporimeter 3, expansion valve 4, condenser 5 and fluid reservoir 6; Described commercial use air conditioner also comprises the 2nd expansion valve 7, gas-liquid separator 8, magnetic valve 9 and check valve 10; Wherein the 2nd expansion valve 7 is connected between the inlet of the outlet of condenser 5 and gas-liquid separator 8, magnetic valve 9 is connected between the liquid outlet and expansion valve 4 of gas-liquid separator 8, the gas discharge outlet of gas-liquid separator 8 links to each other with the inlet of fluid reservoir 6, and check valve 10 then is connected between the inlet of cross valve 2 and fluid reservoir 6.When carrying out the heating and defrosting operation, described magnetic valve 9 cuts out, thereby refrigerant is without expansion valve 4 and evaporimeter 3.When carrying out the heating and defrosting operation, described check valve 10 can stop refrigerant to flow to cross valve 2.When commercial use air conditioner provided by the invention carries out kind of refrigeration cycle, magnetic valve 9 will be in opening under the control part control of air-conditioner inside, compressed machine 1 compression this moment and the refrigerant that becomes high-temperature high-pressure state flow to condenser 5 after via cross valve 2, to carry out heat exchange with the outdoor air around it when flowing through condenser 5 and to outside space heat elimination, and flow through the 2nd expansion valve 7, gas-liquid separator 8, magnetic valve 9 and expansion valve 4 then successively and enter evaporimeter 3 in the indoor set.Becoming gaseous state through heat exchange being carried out in the evaporimeter 3 to absorb heat with the room air around it, at last through flowing back to again in the compressor 1 behind cross valve 2 and the fluid reservoir 6, carry out above-mentioned circulation so repeatedly, thereby the interior space is remained under the nice and cool suitable temperature.It is opposite with above-mentioned kind of refrigeration cycle process just to heat cyclic process.Heat circulation time when winter, the condenser 5 that is arranged in off-premises station can be because internal-external temperature difference and produce condensed water on its surface when the refrigerant of portion and outdoor air carry out heat exchange within it, because the outdoor temperature in winter is lower, thereby this part condensed water just might be frozen in the surface of condenser 5 and produce frosting, thereby influences the heat exchanger effectiveness of condenser 5.When acquiring a certain degree, frosting must defrost, the interior control part of commercial use air conditioner provided by the invention this moment at first changes the circulation of air-conditioner into kind of refrigeration cycle, simultaneously magnetic valve 9 cuts out, thereby cut off the refrigerant that offers evaporimeter 3 in the indoor set, at this moment the refrigerant that flows through the 2nd expansion valve 7 will enter its inside from the inlet of gas-liquid separator 8 according to direction shown in the arrow among the figure, directly flow back to again in the compressor 1 by fluid reservoir 6 then.Meanwhile, under the control of control part, will open heater and indoor fan in the indoor set, thereby will offer the interior space, thereby the variations in temperature in still can holding chamber is little by the air in the indoor set of electric heater heating.After treating that defrosting finishes, control part heats circulation with the circulation of air-conditioner more instead, while opens solenoid valve 9, and at this moment system will proceed circulation according to above-mentioned normal heating process.
Claims (3)
1, a kind of commercial use air conditioner comprises compressor (1), cross valve (2), evaporimeter (3), expansion valve (4), condenser (5) and fluid reservoir (6); It is characterized in that: described commercial use air conditioner also comprises the 2nd expansion valve (7), gas-liquid separator (8), magnetic valve (9) and check valve (10); Wherein the 2nd expansion valve (7) is connected between the inlet of the outlet of condenser (5) and gas-liquid separator (8), magnetic valve (9) is connected between the liquid outlet and expansion valve (4) of gas-liquid separator (8), the gas discharge outlet of gas-liquid separator (8) links to each other with the inlet of fluid reservoir (6), and check valve (10) then is connected between the inlet of cross valve (2) and fluid reservoir (6).
2, commercial use air conditioner according to claim 1 is characterized in that: when carrying out the heating and defrosting operation, described magnetic valve (9) cuts out, thereby refrigerant is without expansion valve (4) and evaporimeter (3).
3, commercial use air conditioner according to claim 1 is characterized in that: when carrying out the heating and defrosting operation, described check valve (10) can stop refrigerant to flow to cross valve (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510014663 CN1904515A (en) | 2005-07-29 | 2005-07-29 | Commercial use air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510014663 CN1904515A (en) | 2005-07-29 | 2005-07-29 | Commercial use air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1904515A true CN1904515A (en) | 2007-01-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510014663 Pending CN1904515A (en) | 2005-07-29 | 2005-07-29 | Commercial use air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1904515A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101382364B (en) * | 2007-09-07 | 2011-05-11 | 乐金电子(天津)电器有限公司 | Defrosting method for low temperature dehumidifier |
| CN104344618A (en) * | 2013-07-30 | 2015-02-11 | 广东美的暖通设备有限公司 | Intelligent defrosting air conditioning system and control method thereof |
| CN104964497A (en) * | 2015-07-27 | 2015-10-07 | 广东志高空调有限公司 | Air conditioner and utilization method for residual heat of air conditioner |
| CN105202663A (en) * | 2015-10-13 | 2015-12-30 | 侯根香 | Exhausting and heating heat pump air conditioning unit |
| CN106016467A (en) * | 2016-07-04 | 2016-10-12 | 珠海格力电器股份有限公司 | Air conditioner |
-
2005
- 2005-07-29 CN CN 200510014663 patent/CN1904515A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101382364B (en) * | 2007-09-07 | 2011-05-11 | 乐金电子(天津)电器有限公司 | Defrosting method for low temperature dehumidifier |
| CN104344618A (en) * | 2013-07-30 | 2015-02-11 | 广东美的暖通设备有限公司 | Intelligent defrosting air conditioning system and control method thereof |
| CN104344618B (en) * | 2013-07-30 | 2017-02-08 | 广东美的暖通设备有限公司 | Intelligent defrosting air conditioning system and control method thereof |
| CN104964497A (en) * | 2015-07-27 | 2015-10-07 | 广东志高空调有限公司 | Air conditioner and utilization method for residual heat of air conditioner |
| CN105202663A (en) * | 2015-10-13 | 2015-12-30 | 侯根香 | Exhausting and heating heat pump air conditioning unit |
| CN106016467A (en) * | 2016-07-04 | 2016-10-12 | 珠海格力电器股份有限公司 | Air conditioner |
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