CN201897346U - Air conditioner - Google Patents
Air conditioner Download PDFInfo
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- CN201897346U CN201897346U CN2010206669524U CN201020666952U CN201897346U CN 201897346 U CN201897346 U CN 201897346U CN 2010206669524 U CN2010206669524 U CN 2010206669524U CN 201020666952 U CN201020666952 U CN 201020666952U CN 201897346 U CN201897346 U CN 201897346U
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- compressor
- air conditioner
- condenser
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Abstract
The utility model relates to an air conditioner, in particular to an air conditioner with a refrigerating system which can stably run under a low-temperature environment. The air conditioner can change the function of a condenser and can be used as an over-cold section under the low-temperature environment. The icing of an evaporator can be prevented so that the refrigerating system of the air conditioner can run stably under the low-temperature environment; and the condensing pressure can be controlled and a compressor can be protected. The air conditioner comprises the evaporator, the compressor, the condenser, a liquid storage tank and a throttling device that are sequentially connected with one another circularly; a pipeline with an over-hot section is designed between the outlet of the evaporator and the compressor; and a cooling device is arranged between the compressor and the pipeline of the condenser. In the utility model, the function of the condenser can be changed under the low-temperature environment; the air conditioner can be used as the over-cold section under the cold-temperature situation so that the stable run of the air conditioner can be ensured under the low-temperature situation, the icing of the evaporator can be prevented, the condensing fan stops rotating when the air conditioner runs at the working condition of refrigeration and low temperature outdoors, the energy consumption can be saved, excessively high outdoor pressure can be prevented effectively and the compressor can be protected.
Description
Technical field
The utility model relates to a kind of air-conditioner, particularly a kind of air-conditioner that refrigeration system can stable operation under low temperature environment.Change the function of condenser, the air-conditioner that under low temperature condition, uses as super cooled sect.
Background technology
Air-conditioner in the market, under low temperature environment, refrigeration system can't be moved normally, can't satisfy the employed demand of some particular field, and is higher to the environmental requirement of humiture as computer room, data processor room, kitchen, amusement place and other places.Air-conditioner or constant temperature dehumidification air-conditioning are applied in computer room, the data processor room, and kitchen and the room that electrical heating is arranged, when externally environment temperature was very low, indoor temperature also can be more and more higher, needs cooling to reach the smooth and easy operation of unit; Perhaps on the boats and ships, humidity is bigger, needs by refrigerated dehumidification, and cooling is normal to reach the machine room operation, the protection unit.And in this case, the common air-conditioning device can not run well under this low temperature and achieve the goal.Shown in Figure 1 is general air-conditioning refrigeration system.Can't guarantee the stable operation of this refrigeration system under outdoor low temperature environment, the device that avoids evaporating freezes.
Summary of the invention
Technical problem to be solved by this invention is: the device that avoids evaporating freezes, and makes air-conditioner refrigeration system energy stable operation under low temperature environment; The control condensing pressure, the protection compressor.
For addressing the above problem, the utility model is achieved in that a kind of air-conditioner, comprises evaporimeter, compressor, condenser, fluid reservoir, throttling arrangement, circulation connection successively between them; It is characterized in that: the pipeline that returns compressor design one band superheat section at evaporator outlet; Between the pipeline of compressor and condenser, be provided with a cooling device.
Described cooling device is a cooling collar.
Described throttling arrangement is heating power expansion valve or electric expansion valve.
Entering the condenser pipeline section at refrigerant by compressor has a threeway, and one section is provided with cooling collar, and another section is provided with magnetic valve.
Enter at refrigerant on two pipeline sections of compressor magnetic valve is housed respectively, its purpose is to control the flow of refrigerant by superheat section.
Described magnetic valve does not all have throttling function, only regulates the flow of refrigerant.Magnetic valve is to control folding and aperture size according to the temperature of sensor institute perception to the control of cold medium flux.
Existing air-conditioner freezes under low temperature environment, causes evaporimeter to freeze fluctuation of service under the low temperature environment easily; Also very easily hydraulic pressure contracts, and damages compressor; If additionally increase dehumidifier, investment cost is big, and in required refrigeration room, also restricted to taking up room of machine.Above problem causes a lot of limiting factors to cryogenic refrigeration, can't reach desirable market effect.
The utility model changes the function of condenser under low temperature environment, use as super cooled sect under low temperature condition, can guarantee that air-conditioner is stable under low temperature condition, the device that avoids evaporating freezes, at outdoor low temperature, energy consumption is saved in the condenser fan stall during cooling condition operation; And can prevent effectively that pressure outside is too high, the protection compressor.
Description of drawings
Fig. 1 is the refrigerating system figure of common air-cooled detachable air conditioner.
Refrigerating system figure when Fig. 2 is 15-43 ℃ for the air-conditioner outdoor temperature of cryogenic refrigeration.
Fig. 3 for the air-conditioner outdoor temperature of cryogenic refrigeration is-refrigerating system figure during 35-15 ℃.
The specific embodiment
For making the reader further understand architectural feature of the present utility model, the utility model is further elaborated below in conjunction with accompanying drawing.
As shown in Figure 1, in the frame of broken lines of the left side is indoor set, and in the frame of broken lines of the right is off-premises station, down together.Be the schematic diagram of the refrigeration system of common air-cooled detachable air conditioner, the air-conditioner shown in the figure comprises that indoor set comprises evaporimeter 1, sensor 5; Off-premises station comprises throttling arrangement 4, sensor 5, condenser 3, compressor 2, fluid reservoir 11.When under low temperature environment, this refrigeration system can't stable operation.
As shown in Figures 2 and 3, when evaporimeter 1 exports back compressor, be provided with two pipelines, on the pipeline magnetic valve B8 and superheat section arranged, magnetic valve C9 is arranged on another.Compressor 2 is compressed into refrigerant the gas of high temperature, high pressure, and be pressed into condenser 3, on going out to make a return journey the pipeline of condenser, compressor is provided with a threeway, on through pipeline before the threeway, a check valve 10 is arranged, there are two pipelines to remove condenser 3, article one, on the pipeline cooling collar is arranged, magnetic valve A7 is arranged on another.Under the cooling effect of condenser 3, become saturated liquid, after refrigerant flows out condenser 3, through throttling arrangement from gas, saturated liquid evaporates heat absorption in evaporimeter then, reaches refrigeration thereby reach the reduction indoor temperature, in sum, indoor heat absorption, outdoor heat release; Freeze to indoor thus.
Working condition shown in Figure 2 be at outdoor environment temperature under 15 to 43 ℃ situation because outdoor temperature environment is higher, magnetic valve B8 closes.Refrigerant enters compressor from that pipeline that magnetic valve C9 is housed.After the compressed machine compression of refrigerant, a part enters condenser from cooling collar 12, and a part directly enters condenser from that pipeline that magnetic valve A7 is housed.Control the aperture of magnetic valve A7 according to outdoor environment, thereby adjust the condenser coolant distribution, make it outside different chamber, to guarantee under the high-temperature condition the best cooling effect of condenser.
Working condition shown in Figure 3 is to be lower than 15 ℃ situation in outdoor temperature, after coming out from evaporimeter, refrigerant does to flow to compressor again after the Overheating Treatment through superheat section, if there is not superheat section thermal process again, refrigerant is not evaporating completely under the situation, the state of refrigerant can be a gas-liquid two-phase, directly enter compressor, can produce liquid hammer, shorten the service life of compressor compressor.The HTHP refrigerant that comes out from compressor is entered condenser by branch as two parts, by indoor and outdoor coolant state control magnetic valve A7 aperture.At this moment, cooling pipe uses as condenser, and condenser uses as super cooled sect, and fan 6 stops.Amount through the heat treated refrigerant of superheat section is many more, just can allow refrigerant fully evaporate, and is just a little less to the liquid hammer of compressor, and the probability that indoor evaporator is frozen is also just corresponding a little bit smaller.Make that refrigeration air-conditioner can stable operation under low temperature environment.
Claims (5)
1. an air-conditioner comprises evaporimeter, compressor, condenser, fluid reservoir, throttling arrangement, circulation connection successively between them; It is characterized in that: the pipeline that returns compressor design one band superheat section at evaporator outlet; Between the pipeline of compressor and condenser, be provided with a cooling device.
2. a kind of air-conditioner according to claim 1 is characterized in that: described cooling device is a cooling collar.
3. a kind of air-conditioner according to claim 1 is characterized in that: described throttling arrangement is heating power expansion valve or electric expansion valve.
4. a kind of air-conditioner according to claim 1 and 2 is characterized in that: entering the condenser pipeline section at refrigerant by compressor has a threeway, and one section is provided with cooling collar, and another section is provided with magnetic valve.
5. a kind of air-conditioner according to claim 1 is characterized in that: enter at refrigerant on two pipeline sections of compressor magnetic valve is housed respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206669524U CN201897346U (en) | 2010-12-16 | 2010-12-16 | Air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206669524U CN201897346U (en) | 2010-12-16 | 2010-12-16 | Air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201897346U true CN201897346U (en) | 2011-07-13 |
Family
ID=44255252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206669524U Expired - Fee Related CN201897346U (en) | 2010-12-16 | 2010-12-16 | Air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201897346U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105627612A (en) * | 2016-01-04 | 2016-06-01 | 广东美的暖通设备有限公司 | Outdoor unit refrigerant pipeline system, air conditioner and refrigeration control method for air conditioner |
-
2010
- 2010-12-16 CN CN2010206669524U patent/CN201897346U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105627612A (en) * | 2016-01-04 | 2016-06-01 | 广东美的暖通设备有限公司 | Outdoor unit refrigerant pipeline system, air conditioner and refrigeration control method for air conditioner |
| CN105627612B (en) * | 2016-01-04 | 2018-05-25 | 广东美的暖通设备有限公司 | The refrigeration control method of outdoor unit refrigerant pipe-line system, air conditioner and air conditioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110713 Termination date: 20111216 |