CN1987299A - Air conditioner - Google Patents
Air conditioner Download PDFInfo
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- CN1987299A CN1987299A CN 200510122572 CN200510122572A CN1987299A CN 1987299 A CN1987299 A CN 1987299A CN 200510122572 CN200510122572 CN 200510122572 CN 200510122572 A CN200510122572 A CN 200510122572A CN 1987299 A CN1987299 A CN 1987299A
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Abstract
An air conditioner able to defrost its outdoor set without reverse circulation or electric heater is composed of a cold medium compressor, an indoor heat exchanger between cold medium and indoor air, a cold medium expander, a three-way valve for controlling the flow of cold medium, and an outdoor heat exchanger between cold medium and outdoor air.
Description
Technical field
The present invention relates to a kind of air-conditioner.
Background technology
In general, the cooling-heating room air-conditioner is the air-conditioner that can freeze or heat.In refrigeration or when heating, the flow direction of refrigerant is opposite, and can freeze or heat according to selected pattern.But in refrigeration, off-premises station plays a part condensing machine, and indoor set then plays a part rapid steamer.On the contrary, when heating, indoor set plays a part condensing machine, and off-premises station then plays a part rapid steamer.
As shown in Figure 1, air-conditioner is by constituting as the lower part: the indoor heat exchanger 10 and the outdoor heat exchanger 20 of carrying out heat exchange with ambient air; The expansion gear 30 that refrigerant is expanded; The compressor 40 of compression refrigerant; Be arranged on the side of above-mentioned compressor 40, and the cubic valve 50 of the flow direction of control refrigerant.
Detailed says, above-mentioned indoor heat exchanger 10 is arranged on indoor, and freezes or heat the equipment of work.In refrigeration, play a part rapid steamer, and when heating, then play a part condensing machine.On the contrary, above-mentioned outdoor heat exchanger 20 is in refrigeration, plays the effect of condensing machine, and when heating, then plays the effect of rapid steamer.
And air-conditioner also is provided with as the lower part: indoor Air Blast fan 11, and it is arranged at the rear side of above-mentioned indoor heat exchanger 10, and makes room air and refrigerant by above-mentioned indoor heat exchanger 10 inside carry out heat exchange; Outdoor Air Blast fan 21, it is arranged at the rear side of above-mentioned outdoor heat exchanger 20, and makes outdoor air and refrigerant by above-mentioned outdoor heat exchanger 20 inside carry out heat exchange.
Below, describe defrosting structure and the process of aforesaid air-conditioner when heating in detail.
At first, under the effect of above-mentioned compressor 40, be compressed into the refrigerant of high-temperature high-pressure state, will flow to above-mentioned cubic valve 50 along pipe arrangement.This four directions valve 50 will be controlled the flow direction of refrigerant, and make it flow to above-mentioned indoor heat exchanger 10.Detailed says, above-mentioned air-conditioner when heating, as shown in the figure, the flow path that refrigerant will be in the above-mentioned cubic valve 50 represents with solid line.
Flow to the refrigerant of above-mentioned indoor heat exchanger 10, under the effect of above-mentioned indoor Air Blast fan 11, carry out heat exchange with the room air that sucks.In the process of heat exchange, will descend in the temperature of the refrigerant of above-mentioned indoor heat exchanger 10 internal flows, above-mentioned refrigerant Entropy Changes becomes the liquid of high-temperature low-pressure.
Above-mentioned refrigerant becomes the liquid of low-temp low-pressure through in the above-mentioned expansion gear 30, flow to above-mentioned outdoor heat exchanger 20 then.
Flow to the refrigerant of above-mentioned outdoor heat exchanger 20, under the effect of above-mentioned outdoor Air Blast fan 21, carry out heat exchange with the outdoor air that sucks.In the process of heat exchange, will rise in the temperature of the refrigerant of above-mentioned outdoor heat exchanger 20 internal flows, above-mentioned refrigerant Entropy Changes becomes the gas of high-temperature low-pressure.
In addition, because the cold wind of above-mentioned outdoor heat exchanger 20 discharges, and the temperature of outdoor environment is sub-zero the time, and the surface of exposing the above-mentioned outdoor heat exchanger 20 under outdoor environment can produce icing phenomenon.
In this case, in the air-conditioner of prior art, the stream of the refrigerant of above-mentioned cubic valve 50 inside will become the stream that is represented by dotted lines among the figure.At this moment, above-mentioned indoor heat exchanger 10 plays the effect of rapid steamer, and above-mentioned outdoor heat exchanger 20 then plays the effect of condensing machine.Thereby carry out the above-mentioned outdoor heat exchanger 20 lip-deep icing defrosting work of removing.
But when the air-conditioner of prior art defrosted work, above-mentioned indoor heat exchanger played the effect of rapid steamer for a long time, thereby causes the temperature decrease of room air.
And above-mentioned outdoor heat exchanger is lip-deep freezes in order to remove, and the refrigerant of the condition of high temperature in above-mentioned outdoor heat exchanger internal flow.At this moment, the pipe arrangement that links together with above-mentioned outdoor heat exchanger can produce thermal shock (thermal shock).
Summary of the invention
Technical problem underlying to be solved by this invention is, overcome the above-mentioned defective that existing technology exists, and provide a kind of air-conditioner, under the situation of not using contrary circulation (cycle reversing) or electric heater etc., also can realize the defrosting of outdoor heat exchanger, and, in the defrosting work of carrying out outdoor heat exchanger, above-mentioned indoor heat exchanger plays the effect of condensing machine, thereby the temperature that can prevent room air descends.In addition, the vapour pressure that flow into the refrigerant of above-mentioned outdoor heat exchanger is substantially equal to condensing pressure, produces thermal shock thereby can prevent to be connected on the pipe arrangement of above-mentioned outdoor heat exchanger.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of air-conditioner is characterized in that, comprising: the compressor of compression refrigerant; Refrigerant by above-mentioned compressor is flowed into, and the indoor heat exchanger that carries out heat exchange with room air; Refrigerant by above-mentioned indoor heat exchanger is flowed into, and make refrigerant be expanded to the expansion gear of low-temp low-pressure state; Control flowing of above-mentioned refrigerant by indoor heat exchanger, and make it through above-mentioned expansion gear or walk around the 1st tripartite valve of above-mentioned expansion gear; Refrigerant by above-mentioned the 1st tripartite valve is flowed into, and the outdoor heat exchanger of carrying out heat exchange with outdoor air.
Aforesaid air-conditioner, wherein the 1st tripartite valve and above-mentioned expansion gear, indoor heat exchanger and outdoor heat exchanger link together.
Aforesaid air-conditioner wherein when above-mentioned air-conditioner carries out defrost operation, through the refrigerant of above-mentioned the 1st tripartite valve, is walked around above-mentioned expansion gear, flows to above-mentioned outdoor heat exchanger.
Aforesaid air-conditioner, wherein a side of outdoor heat exchanger is provided with the 2nd tripartite valve of the flow direction of control refrigerant; One side of above-mentioned the 2nd tripartite valve is provided with the auxiliary expansion device of the refrigerant that is used to expand; The above-mentioned the 2nd tripartite valve and above-mentioned outdoor heat exchanger, auxiliary expansion device, compressor link together.
Aforesaid air-conditioner, wherein when above-mentioned air-conditioner carried out defrost operation, the refrigerant through above-mentioned the 2nd tripartite valve was expanded by above-mentioned auxiliary expansion device.
Aforesaid air-conditioner wherein is provided with Water-liquid separator between the 2nd tripartite valve and the compressor; Above-mentioned Water-liquid separator and above-mentioned auxiliary expansion device, compressor and the 1st tripartite valve link together.
Aforesaid air-conditioner wherein by the liquid refrigerants of above-mentioned auxiliary expansion device, under the effect of above-mentioned Water-liquid separator, is walked around above-mentioned compressor.
Aforesaid air-conditioner wherein under the effect of above-mentioned Water-liquid separator, is walked around the refrigerant of above-mentioned compressor, flows to the above-mentioned the 1st tripartite valve.
The air-conditioner of Gou Chenging under the situation of not using contrary circulation (cycle reversing) or electric heater etc., also can be realized the defrosting of outdoor heat exchanger as mentioned above.
And when the defrosting work of outdoor heat exchanger was carried out, indoor heat exchanger played a part condensing machine, thereby the temperature that can prevent room air descends.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the schematic diagram of defrosting structure of the air-conditioner of prior art.
Fig. 2 is the schematic diagram of the defrosting structure of air-conditioner of the present invention.
Fig. 3 is the T-S line chart of air-conditioner of the present invention.
The number in the figure explanation:
100: indoor heat exchanger 200: outdoor heat exchanger 300: expansion gear
400: compressor 600: 700: the 1 tripartite valves of Water-liquid separator
710: the 2 tripartite valves
The specific embodiment
As shown in Figure 2, air-conditioner of the present invention is by constituting as the lower part: the indoor heat exchanger 100 and the outdoor heat exchanger 200 of carrying out heat exchange with ambient air; The expansion gear 300 of refrigerant is used to expand; The compressor 400 that is used for compression refrigerant; The 1st tripartite valve 700 and the 2nd tripartite valve 710 of the flow direction of control refrigerant.
One side of above-mentioned compressor 400 is provided with Water-liquid separator 600.The effect of above-mentioned Water-liquid separator 600 is: divided gas flow and liquid.
The rear of above-mentioned indoor heat exchanger 100 and outdoor heat exchanger 200 is respectively arranged with indoor Air Blast fan 110 and outdoor Air Blast fan 210.The effect of above-mentioned indoor Air Blast fan 110 and outdoor Air Blast fan 210 is: make the refrigerant by above-mentioned indoor heat exchanger 100 and outdoor heat exchanger 200 inside carry out heat exchange.
Detailed says, is provided with the 1st tripartite valve 700 between above-mentioned indoor heat exchanger 100 and the expansion gear 300.Under the effect of the above-mentioned the 1st tripartite valve 700, can walk around above-mentioned expansion gear 300 from the refrigerant that above-mentioned indoor heat exchanger 100 is discharged, flow to above-mentioned outdoor heat exchanger 200.
In addition, be provided with the 2nd tripartite valve 710 between above-mentioned outdoor heat exchanger 200 and the compressor 400.One side of the above-mentioned the 2nd tripartite valve 710 is provided with auxiliary expansion device 310.
Detailed says, flowing of the refrigerant of the 2nd tripartite valve 710 control outdoor heat exchanger 200 makes it flow to above-mentioned compressor 400 through above-mentioned auxiliary expansion device 310, perhaps walks around above-mentioned auxiliary expansion device 310 and flow to above-mentioned compressor 400.
Above-mentioned Water-liquid separator 600 is arranged between above-mentioned auxiliary expansion device 310 and the compressor 400.One side of the opposite side of above-mentioned Water-liquid separator 600 and the above-mentioned the 1st tripartite valve 700 links together.
Below, the driving process of air-conditioner of the present invention is described.
At first, above-mentioned air-conditioner under the effect of above-mentioned compressor 400, is compressed into the refrigerant of high-temperature high-pressure state when heating, and will flow to above-mentioned indoor heat exchanger 100 along pipe arrangement.Flow to the refrigerant of above-mentioned indoor heat exchanger 100, under the effect of above-mentioned indoor Air Blast fan 110, carry out heat exchange, thereby make above-mentioned refrigerant become the high-temperature fluid state with room air.This is the greenhouse circulation that makes the temperature rising of room air.
Refrigerant through above-mentioned indoor heat exchanger 100 under the effect of the above-mentioned the 1st tripartite valve 700, flow to above-mentioned expansion gear 300.Through the refrigerant of above-mentioned expansion gear 300, will become the state that cryogenic gas and liquid mix.
Refrigerant through above-mentioned expansion gear 300 will flow to above-mentioned outdoor heat exchanger 200.Flow to the refrigerant of above-mentioned outdoor heat exchanger 200 inside, under the effect of above-mentioned outdoor Air Blast fan 210, carry out heat exchange with outdoor air.At this moment, above-mentioned refrigerant will become the cryogenic gas state.At this moment, above-mentioned outdoor heat exchanger 200 plays the effect of rapid steamer.
Refrigerant through above-mentioned outdoor heat exchanger 200 under the effect of the above-mentioned the 2nd tripartite valve 710, flow to above-mentioned auxiliary expansion device 310.Under the effect of above-mentioned auxiliary expansion device 310, refrigerant is gasified, thereby the pressure of refrigerant is diminished.
Gaseous coolant through above-mentioned auxiliary expansion device 310 will flow to above-mentioned compressor 400, be compressed by above-mentioned compressor 400 then.
Under the effect of greenhouse load change, complete vaporized the time when not having through the refrigerant of above-mentioned auxiliary expansion device 310, in order to prevent that liquid refrigerants from flowing to the inside of above-mentioned compressor 400, under the effect of above-mentioned Water-liquid separator 600, liquid refrigerants will be by shunting (bypass).
Detailed says, by the refrigerant of above-mentioned Water-liquid separator 600 shuntings, will mix with the refrigerant through above-mentioned indoor heat exchanger 100.Then, under the control action of the above-mentioned the 1st tripartite valve 700, continue to flow.
As mentioned above, after the refrigerant of the above-mentioned indoor heat exchanger 100 of process is shunted, flow to above-mentioned outdoor heat exchanger 200, thereby the surface that can prevent above-mentioned outdoor heat exchanger 200 produces the phenomenon of freezing.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, every foundation technical spirit of the present invention all still belongs in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment did.
The effect of invention
The present invention is not using in the situation of circulation (cycle reversing) or electric heater etc., Also can realize the defrosting of outdoor heat exchanger.
And in the defrosting work of carrying out outdoor heat exchanger, indoor heat exchanger plays condensing The effect of machine, thus can prevent the drop in temperature of room air.
In addition, the vapour pressure that flow into the refrigerant of above-mentioned outdoor heat exchanger is substantially equal to condensing pressure, because of This is connected on the pipe arrangement of above-mentioned outdoor heat exchanger can not produce thermal shock, thereby can make the behaviour of air-conditioner Do safer.
Claims (8)
1, a kind of air-conditioner is characterized in that, comprising:
The compressor of compression refrigerant;
Refrigerant by above-mentioned compressor is flowed into, and the indoor heat exchanger that carries out heat exchange with room air;
Refrigerant by above-mentioned indoor heat exchanger is flowed into, and make refrigerant be expanded to the expansion gear of low-temp low-pressure state;
Control flowing of above-mentioned refrigerant by indoor heat exchanger, and make it through above-mentioned expansion gear or walk around the 1st tripartite valve of above-mentioned expansion gear;
Refrigerant by above-mentioned the 1st tripartite valve is flowed into, and the outdoor heat exchanger of carrying out heat exchange with outdoor air.
2, air-conditioner according to claim 1 is characterized in that:
The above-mentioned the 1st tripartite valve and above-mentioned expansion gear, indoor heat exchanger and outdoor heat exchanger link together.
3, air-conditioner according to claim 2 is characterized in that:
When above-mentioned air-conditioner carries out defrost operation, through the refrigerant of above-mentioned the 1st tripartite valve, walk around above-mentioned expansion gear, flow to above-mentioned outdoor heat exchanger.
4, air-conditioner according to claim 1 is characterized in that:
One side of above-mentioned outdoor heat exchanger is provided with the 2nd tripartite valve of the flow direction of control refrigerant;
One side of above-mentioned the 2nd tripartite valve is provided with the auxiliary expansion device of the refrigerant that is used to expand;
The above-mentioned the 2nd tripartite valve and above-mentioned outdoor heat exchanger, auxiliary expansion device, compressor link together.
5, air-conditioner according to claim 4 is characterized in that:
When above-mentioned air-conditioner carried out defrost operation, the refrigerant through above-mentioned the 2nd tripartite valve was expanded by above-mentioned auxiliary expansion device.
6, air-conditioner according to claim 4 is characterized in that:
Be provided with Water-liquid separator between the above-mentioned the 2nd tripartite valve and the compressor;
Above-mentioned Water-liquid separator and above-mentioned auxiliary expansion device, compressor and the 1st tripartite valve link together.
7, air-conditioner according to claim 6 is characterized in that:
By the liquid refrigerants of above-mentioned auxiliary expansion device, under the effect of above-mentioned Water-liquid separator, walk around above-mentioned compressor.
8, air-conditioner according to claim 7 is characterized in that:
Under the effect of above-mentioned Water-liquid separator, walk around the refrigerant of above-mentioned compressor, flow to the above-mentioned the 1st tripartite valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510122572 CN1987299A (en) | 2005-12-22 | 2005-12-22 | Air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510122572 CN1987299A (en) | 2005-12-22 | 2005-12-22 | Air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1987299A true CN1987299A (en) | 2007-06-27 |
Family
ID=38184189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510122572 Pending CN1987299A (en) | 2005-12-22 | 2005-12-22 | Air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1987299A (en) |
-
2005
- 2005-12-22 CN CN 200510122572 patent/CN1987299A/en active Pending
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