CN103148543A - Outdoor heat exchange device and air conditioning system - Google Patents
Outdoor heat exchange device and air conditioning system Download PDFInfo
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- CN103148543A CN103148543A CN2011104046509A CN201110404650A CN103148543A CN 103148543 A CN103148543 A CN 103148543A CN 2011104046509 A CN2011104046509 A CN 2011104046509A CN 201110404650 A CN201110404650 A CN 201110404650A CN 103148543 A CN103148543 A CN 103148543A
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Abstract
The invention provides an outdoor heat exchange device and an air conditioning system. The outdoor heat exchange device comprises an outdoor heat exchanger and valves. The outdoor heat exchanger comprises a plurality of heat exchange branches connected in parallel. The first ends of the heat exchange branches are connected into a first confluence point. The second end of each heat exchange branch is connected with two valves, wherein the first end of one valve is connected with the second ends of the heat exchange branches, and the second end of the valve serves as a first connecting end; and the first end of the other valve is connected with the second ends of the heat exchange branches, and the second end of the valve serves as a second connecting end. A plurality of first connecting ends are connected into a second confluence point. A plurality of second connecting ends are connected into a third confluence point. According to the outdoor heat exchange device, the heat exchange branches connected in parallel are arranged in the outdoor heat exchanger, and the flow directions of coolants in the heat exchange branches are controlled by the valves, so that the segmented work of each heat exchange branch is realized, and the working stability and the working efficiency of the outdoor heat exchanger are improved.
Description
Technical field
The present invention relates to the air-conditioner defrosting technical field, in particular to a kind of outdoor heat exchange device and air-conditioning system.
Background technology
In the prior art, air-conditioning all is comprised of compressor, cross valve, outdoor heat exchanger, throttle structure and indoor heat exchanger, wherein, outdoor heat exchanger only has single pipeline and realizes the function of freezing and heating, in the winter time, after operation a period of time, on outdoor heat exchanger, the meeting frosting, affect heat exchange efficiency when air-conditioning heating.At this moment, be all generally to adopt the cold mode of the air-conditioning transformation of ownership to defrost, when defrosting is carried out, there is cold wind to blow out for preventing the indoor, indoorly all can close blower fan, cause the discontinuous of indoor heating, comfortableness reduces.
Summary of the invention
The present invention aims to provide a kind of air-conditioning system that can carry out the outdoor heat exchange device of fragmentary works and can carry out the segmentation defrosting.
to achieve these goals, according to an aspect of the present invention, a kind of outdoor heat exchange device is provided, comprise: outdoor heat exchanger and valve, outdoor heat exchanger comprises the heat exchange branch road of a plurality of parallel connections, the first end of a plurality of heat exchange branch roads is connected to form the first confluence jointly, the second end of each heat exchange branch road all is connected with two valves, wherein, the first end of a valve in two valves is connected with the second end of heat exchange branch road, and the second end of this valve is as the first link, the first end of another valve in two valves is connected with the second end of heat exchange branch road, and the second end of this valve is as the second link, a plurality of the first links are connected to form the second confluence jointly, a plurality of the second links are connected to form the 3rd confluence jointly.
Further, outdoor heat exchanger also comprises the supercooling tube branch road, and the first end of supercooling tube branch road connects the 3rd confluence, and the second end of supercooling tube branch road forms the 3rd link.
Further, the supercooling tube branch road comprises: the first supercooling tube and the second supercooling tube, the first end of the first supercooling tube is connected with the 3rd confluence, the second end of the first supercooling tube heats throttling arrangement and is connected the first end of check valve with the second supercooling tube and is connected by parallel connection, the second end of the second supercooling tube and in parallel refrigeration throttling device be connected the first end of check valve and be connected, the second end of refrigeration throttling device and the second end of the second check valve formation the 3rd link that confluxes.
Further, the first check valve is opposite with the conducting direction of the second check valve.
Further, outdoor heat exchanger comprises the first heat exchange branch road and the second heat exchange branch road in parallel; Valve comprises four, be respectively the first valve, the second valve, the 3rd valve and the 4th valve, the first end of the first heat exchange branch road and the second heat exchange branch road is connected to form the first confluence jointly, the second end of the first heat exchange branch road is connected with the first end of the first valve with the 3rd valve respectively, the second end of the second heat exchange branch road is connected with the first end of the second valve with the 4th valve respectively, the second end of the 3rd valve and the 4th valve jointly connects and forms the second confluence, the first valve be connected the second end of valve and jointly connect and form the 3rd confluence.
Further, valve is magnetic valve or motor-driven valve.
Further, the first heat exchange branch road comprises the first heat exchanger tube and the second heat exchanger tube in parallel, the second heat exchange branch road comprises the 3rd heat exchanger tube and the 4th heat exchanger tube in parallel, the first heat exchanger tube, the second heat exchanger tube, the 3rd heat exchanger tube and the 4th heat exchanger tube all are n shape, and the first heat exchanger tube is relative with the opening direction of the second heat exchanger tube, and the 3rd heat exchanger tube is relative with the opening direction of the 4th heat exchanger tube.
According to another aspect of the present invention, provide a kind of air-conditioning system, having comprised: compressor; Guide valve is connected with compressor; Outdoor heat exchange device, outdoor heat exchange device are above-mentioned outdoor heat exchange device, and the first confluence of outdoor heat exchange device is connected with compressor by guide valve, and the second confluence of outdoor heat exchange device directly is connected with compressor; Indoor heat exchanger, first end is connected with compressor by guide valve, and the second end of indoor heat exchanger is connected with the 3rd link of outdoor heat exchange device.
Further, also be provided with gas-liquid separator between guide valve and compressor.
Further, guide valve is cross valve or five-way valve or six-way valve.
in technical scheme of the present invention, outdoor heat exchange device comprises outdoor heat exchanger and valve, outdoor heat exchanger comprises the heat exchange branch road of a plurality of parallel connections, the first end of a plurality of heat exchange branch roads is connected to form the first confluence jointly, the second end of each heat exchange branch road all is connected with two valves, wherein, the first end of a valve is connected with the second end of heat exchange branch road, and the second end of this valve is as the first link, the first end of another valve is connected with the second end of heat exchange branch road, and the second end of this valve is as the second link, a plurality of the first links are connected to form the second confluence jointly, a plurality of the second links are connected to form the 3rd confluence jointly.Outdoor heat exchange device of the present invention is by adopting a plurality of heat exchange branch roads that are connected in parallel in outdoor heat exchanger, and control by the flow direction of the refrigerant in the valve heat exchanging branch road that is connected with the heat exchange branch road, realize the fragmentary works of inner each heat exchange branch road of outdoor heat exchanger, improved job stability and the operating efficiency of outdoor heat exchanger.
Description of drawings
The Figure of description that consists of the application's a part is used to provide a further understanding of the present invention, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not consist of improper restriction of the present invention.In the accompanying drawings:
Fig. 1 shows the schematic diagram according to the connection of the embodiment of air-conditioning system of the present invention.
The specific embodiment
Need to prove, in the situation that do not conflict, embodiment and the feature in embodiment in the application can make up mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the present invention in detail.
according to embodiments of the invention, a kind of outdoor heat exchange device is provided, comprise: outdoor heat exchanger and valve, outdoor heat exchanger comprises the heat exchange branch road of a plurality of parallel connections, the first end of a plurality of heat exchange branch roads is connected to form the first confluence jointly, and the second end of each heat exchange branch road all is connected with two valves, wherein, the first end of a valve in two valves is connected with the second end of heat exchange branch road, and the second end of this valve is as the first link, the first end of another valve in two valves is connected with the second end of heat exchange branch road, and the second end of this valve is as the second link, a plurality of the first links are connected to form the second confluence jointly, a plurality of the second links are connected to form the 3rd confluence jointly.The outdoor heat exchange device of the present embodiment, cooperation by the branch road in outdoor heat exchanger and valve, realized working alone between a plurality of heat exchange branch roads, be independent of each other, and control refrigerant flowing in outdoor heat exchanger by the valve that is connected on the heat exchange branch road, realize the fragmentary works of air-conditioner, improved job stability and the operating efficiency of outdoor heat exchanger.
Preferably, outdoor heat exchanger also comprises the supercooling tube branch road, and the first end of supercooling tube branch road connects the 3rd confluence, and the second end of supercooling tube branch road forms the 3rd link, cold pipe branch road can be used for condensed refrigerant was carried out cold, reaches the effect that improves the refrigeration efficiency ratio.
In a kind of preferred embodiment, as shown in Figure 1, outdoor heat exchanger 3 comprises the first heat exchange branch road 31 and the second heat exchange branch road 32 in parallel; Valve is preferably magnetic valve or motor-driven valve, and this valve comprises: the first valve 41, the second valve 42, the 3rd valve 43 and the 4th valve 44.Wherein, the first end of the first heat exchange branch road 31 and the second heat exchange branch road 32 is connected to form the first confluence jointly, the second end of the first heat exchange branch road 31 is connected with the first end of the first valve 41 and the 3rd valve 43 respectively, the second end of the second heat exchange branch road 32 is connected with the first end of the second valve 42 and the 4th valve 44 respectively, the second end of the 3rd valve 43 and the 4th valve 44 jointly connects and forms the second confluence, the first valve 41 be connected the second end of valve 42 and jointly connect and form the 3rd confluence.
Supercooling tube branch road 33 comprises the first supercooling tube 33a and the second supercooling tube 33b, the first end of the first supercooling tube 33a is connected with the 3rd confluence, the second end heats throttling arrangement 51 and is connected the first end of check valve 61 with the second supercooling tube 33b and is connected by parallel connection, the second end of the second supercooling tube 33b and in parallel refrigeration throttling device 52 be connected the first end of check valve 62 and be connected, the second end of the second end of refrigeration throttling device 52 and the second check valve 62 formation the 3rd link that confluxes.Wherein, it is to flow to the first end of the second supercooling tube 33b from the second end of the first supercooling tube 33a that the conducting of the first check valve 61 flows to, and the first check valve 61 is opposite with the conducting direction of the second check valve 62.Adopt this connected mode, the glide path of refrigerant in outdoor heat exchanger 3 can be by valve unlatching or close and control, realize that the first heat exchange branch road 31 and the second heat exchange branch road 32 reach non-interfering duty when work, realize the purpose of fragmentary works.Simultaneously, outdoor heat exchanger 3 in the present embodiment, by excessively increasing the structure that two throttle structures add the check valve parallel connection on cold branch road 33, realized that the first supercooling tube 33a and the second supercooling tube 33b are as the conversion of evaporimeter and condenser, solved the problem that traditional supercooling tube can't defrost, reach supercooling tube when playing super cooling effect, can also carry out voluntarily the beneficial effect of defrost.
Preferably, the first heat exchange branch road 31 comprises the first heat exchanger tube 31a and the second heat exchanger tube 31b in parallel, the second heat exchange branch road 32 comprises the 3rd heat exchanger tube 32a and the 4th heat exchanger tube 32b in parallel, the first heat exchanger tube 31a, the second heat exchanger tube 31b, the 3rd heat exchanger tube 32a and the 4th heat exchanger tube 32b are n shape and arrange in outdoor heat exchanger 3, and the first heat exchanger tube 31a is relative with the opening direction of the second heat exchanger tube 31b, and the 3rd heat exchanger tube 32a is relative with the opening direction of the 4th heat exchanger tube 32b.This set has increased the heat exchange area of outdoor heat exchanger 3, has improved the heat exchange efficiency of heat exchanger.
The present invention also provides a kind of air-conditioning system, comprising: compressor 1, guide valve 2, outdoor heat exchange device and indoor heat exchanger 7.Wherein, guide valve 2 is cross valve or five-way valve or six-way valve, and is connected with compressor 1.Outdoor heat exchange device is above-mentioned outdoor heat exchange device, its first confluence is connected with compressor 1 by guide valve 2, the second confluence directly is connected with compressor 1, and the first end of indoor heat exchanger 7 is connected the second end by guide valve 2 and is connected with the 3rd link of outdoor heat exchange device with compressor 1.Preferably, also be provided with gas-liquid separator 8 between guide valve 2 and compressor 1.The present embodiment, outdoor heat exchange device adopts the outdoor heat exchanger of fragmentary works, and control refrigerant flowing in air-conditioning system by valve, can make air-conditioning system when carrying out the first heat exchange branch road 31 (or second heat exchanger tube 31b) defrosting work, use the second heat exchanger tube 31b (or first heat exchange branch road 31) to continue to heat indoor, guarantee the continuity of indoor heating, improved user's experience.
in Fig. 1, the direction of arrow is the air intake direction of air-conditioning system, when air system is in refrigerating state, the 3rd valve 43 and the 4th valve 44 are in closed condition, the first valve 41 and the second valve 42 are opened, refrigerant flows out from compressor 1, through guide valve 2 pilot flow to the first confluences, and flow to respectively the first heat exchange branch road 31 and the second heat exchange branch road 32 by the first confluence, refrigerant is after the first heat exchange branch road 31 and the second heat exchange branch road 32 are completed heat exchange, flow to the first valve 41 from the second end of the first heat exchange branch road 31, flow to the second valve 42 from the second end of the second heat exchange branch road 32, and flow to the 3rd confluence from the second end of the first valve 41 and the second end of the second valve 42 respectively, and the first supercooling tube 33a that flows through successively from the 3rd confluence, the first check valve 61, the second supercooling tube 33b and refrigeration throttling device 52 to indoor heat exchanger 7 carries out heat exchange, realize that air-conditioning system is at indoor process of refrigerastion.Refrigerant after heat exchange is back to guide valve 2 from the first end of indoor heat exchanger 7, and through guide valve 2 guiding, flows back into compressor 1 from gas-liquid separator 8, completes the circulation of refrigerant in air-conditioning system.At this moment, the first supercooling tube 33a and the second supercooling tube 33b play super cooling effect all as condenser (supercooling tube) to refrigerant.
when air system is in when heating state, the 3rd valve 43 and the 4th valve 44 are in closed condition, the first valve 41 and the second valve 42 are opened, refrigerant flows out from compressor 1, through guide valve 2 pilot flow to indoor heat exchanger 7, carry out heat exchange in indoor heat exchanger 7, and complete the indoor process that heats, refrigerant after heat exchange flows out from the second end of indoor heat exchanger 7, successively through the second check valve 62, the second supercooling tube 33b, heat throttling arrangement 51 and the first supercooling tube 33a flow to the 3rd confluence, and flow in the first heat exchange branch road 31 and the second heat exchange branch road 32 by the first valve 41 and the second valve 42 respectively from the 3rd confluence, when refrigerant is completed heat exchange in the first heat exchange branch road 31 and the second heat exchange branch road 32 after, flow out from the first end of the first heat exchange branch road 31 and the second heat exchange branch road 32, after confluxing to the first place, confluence, be back to guide valve 2, and through guide valve 2 guiding, flow back into compressor 1 from gas-liquid separator 8, complete the circulation of refrigerant in air-conditioning system.
When air-conditioning system is in the first heat exchange branch road 31 defrost state, the first valve 41 and the 4th valve 44 are in closed condition, the second valve 42 and the 3rd valve 43 are opened, at this moment, refrigerant has to the first path of the first heat exchange branch road 31 defrosting with to the second path of indoor heating, and in the first path, the flow direction of refrigerant be outflow from compressor 1, flow into the first heat exchange branch road 31 through the 3rd valve 43 and defrost, and flow out to the first confluence from the first end of the first heat exchange branch road 31.refrigerant flows out from compressor 1 in the second path, through guide valve 2 pilot flow to indoor heat exchanger 7, carry out heat exchange in indoor heat exchanger 7, and complete the indoor process that heats, refrigerant after heat exchange flows out from the second end of indoor heat exchanger 7, successively through the second check valve 62, the second supercooling tube 33b, heat throttling arrangement 51 and the first supercooling tube 33a flow to the 3rd confluence, and carry out heat exchange in the 3rd confluence second valve 42 inflow the second heat exchange branch roads 32, refrigerant after heat exchange flows out to the first confluence from the first end of the second heat exchange branch road 32, and flow to the refrigerant interflow of the first confluence with the first heat exchange branch road 31 after, be back to guide valve 2, and through guide valve 2 guiding, flow back into compressor 1 from gas-liquid separator 8, complete the circulation of refrigerant in air-conditioning system.
When air-conditioning system is in the second heat exchange branch road 32 defrost state, the second valve 42 and the 3rd valve 43 are in closed condition, the first valve 41 and the 4th valve 44 are opened, at this moment, refrigerant has to the Third Road footpath of the second heat exchange branch road 32 defrosting with to the 4th path of indoor heating, and in the Third Road footpath, the flow direction of refrigerant be outflow from compressor 1, flow into the second heat exchange branch road 32 through the 4th valve 44 and defrost, and flow out to the first confluence from the first end of the second heat exchange branch road 32.refrigerant flows out from compressor 1 in the 4th path, through guide valve 2 pilot flow to indoor heat exchanger 7, carry out heat exchange in indoor heat exchanger 7, and complete the indoor process that heats, refrigerant after heat exchange flows out from the second end of indoor heat exchanger 7, successively through the second check valve 62, the second supercooling tube 33b, heat throttling arrangement 51 and the first supercooling tube 33a flow to the 3rd confluence, and carry out heat exchange in the 3rd confluence first valve 41 inflow the first heat exchange branch roads 31, refrigerant after heat exchange flows out to the first confluence from the first end of the first heat exchange branch road 31, and flow to the refrigerant interflow of the first confluence with the second heat exchange branch road 32 after, be back to guide valve 2, and through guide valve 2 guiding, flow back into compressor 1 from gas-liquid separator 8, complete the circulation of refrigerant in air-conditioning system.
When air-conditioning system heats and defrost work, the refrigerant that indoor heat exchanger 7 flows out is through the second check valve 62 to second supercooling tube 33b, then through heating throttling arrangement 51 to first supercooling tube 33a, this moment, the first supercooling tube 33b was as condenser, and the second supercooling tube 33a is as evaporimeter.This set can make the second supercooling tube 33b as condenser to play the effect of heating as the first supercooling tube 33a of evaporimeter, reaches the effect that suppresses the first supercooling tube 33a frosting and accelerate the first supercooling tube 33a defrosting.
The above is only the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. outdoor heat exchange device, it is characterized in that, described outdoor heat exchange device comprises: outdoor heat exchanger (3) and valve, described outdoor heat exchanger (3) comprises the heat exchange branch road of a plurality of parallel connections, the first end of a plurality of described heat exchange branch roads is connected to form the first confluence jointly, the second end of each described heat exchange branch road all is connected with two valves, wherein, the first end of a valve in described two valves is connected with the second end of described heat exchange branch road, and the second end of this valve is as the first link, the first end of another valve in described two valves is connected with the second end of described heat exchange branch road, and the second end of this valve is as the second link, a plurality of described the first links are connected to form the second confluence jointly, a plurality of described the second links are connected to form the 3rd confluence jointly.
2. outdoor heat exchange device according to claim 1, it is characterized in that, described outdoor heat exchanger (3) also comprises supercooling tube branch road (33), the first end of described supercooling tube branch road (33) connects described the 3rd confluence, and the second end of described supercooling tube branch road (33) forms the 3rd link.
3. outdoor heat exchange device according to claim 2, it is characterized in that, described supercooling tube branch road (33) comprising: the first supercooling tube (33a) and the second supercooling tube (33b), the first end of described the first supercooling tube (33a) is connected with described the 3rd confluence, the second end of described the first supercooling tube (33a) heats throttling arrangement (51) and is connected the first end of check valve (61) with described the second supercooling tube (33b) and is connected by parallel connection, the second end of described the second supercooling tube (33b) and in parallel refrigeration throttling device (52) be connected the first end of check valve (62) and be connected, the second end of the second end of described refrigeration throttling device (52) and described the second check valve (62) confluxes and forms described the 3rd link.
4. outdoor heat exchange device according to claim 3, is characterized in that, described the first check valve (61) is opposite with the conducting direction of described the second check valve (62).
5. the described outdoor heat exchange device of any one according to claim 1 to 4, is characterized in that, described outdoor heat exchanger (3) comprises the first heat exchange branch road (31) and the second heat exchange branch road (32) in parallel, described valve comprises four, be respectively the first valve (41), the second valve (42), the 3rd valve (43) and the 4th valve (44), the first end of described the first heat exchange branch road (31) and described the second heat exchange branch road (32) is connected to form described the first confluence jointly, the second end of described the first heat exchange branch road (31) respectively with described the first valve (41) be connected the first end of the 3rd valve (43) and be connected, the second end of described the second heat exchange branch road (32) respectively with described the second valve (42) be connected the first end of the 4th valve (44) and be connected, described the 3rd valve (43) be connected the second end of the 4th valve (44) and jointly connect and form described the second confluence, described the first valve (41) be connected the second end of the second valve (42) and jointly connect and form described the 3rd confluence.
6. outdoor heat exchange device according to claim 5, is characterized in that, described valve is magnetic valve or motor-driven valve.
7. outdoor heat exchange device according to claim 5, it is characterized in that, described the first heat exchange branch road (31) comprises the first heat exchanger tube (31a) and the second heat exchanger tube (31b) in parallel, described the second heat exchange branch road (32) comprises the 3rd heat exchanger tube (32a) and the 4th heat exchanger tube (32b) in parallel, described the first heat exchanger tube (31a), the second heat exchanger tube (31b), the 3rd heat exchanger tube (32a) and the 4th heat exchanger tube (32b) all are n shape, and described the first heat exchanger tube (31a) is relative with the opening direction of described the second heat exchanger tube (31b), described the 3rd heat exchanger tube (32a) is relative with the opening direction of described the 4th heat exchanger tube (32b).
8. an air-conditioning system, is characterized in that, comprising:
Compressor (1);
Guide valve (2) is connected with described compressor (1);
Outdoor heat exchange device, described outdoor heat exchange device is the described outdoor heat exchange device of any one in claim 1 to 7, and the first confluence of described outdoor heat exchange device is connected with described compressor (1) by described guide valve (2), and the second confluence of described outdoor heat exchange device directly is connected with described compressor (1);
Indoor heat exchanger (7), first end is connected with described compressor (1) by described guide valve (2), and the second end of described indoor heat exchanger (7) is connected with the 3rd link of described outdoor heat exchange device.
9. air-conditioning system according to claim 8, is characterized in that, also is provided with gas-liquid separator (8) between described guide valve (2) and described compressor (1).
10. according to claim 8 or 9 described air-conditioning systems, is characterized in that, described guide valve (2) is cross valve or five-way valve or six-way valve.
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| CN201110404650.9A CN103148543B (en) | 2011-12-07 | 2011-12-07 | Outdoor heat exchange device and air-conditioning system |
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| CN110762642A (en) * | 2019-10-09 | 2020-02-07 | 青岛海尔空调电子有限公司 | Outdoor heat exchanger, air conditioning system and control method thereof |
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| WO2022089661A1 (en) * | 2020-10-27 | 2022-05-05 | 青岛海尔空调器有限总公司 | Heat exchanging device and air conditioner |
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| CN104930600B (en) * | 2015-03-31 | 2018-01-02 | 广东美的暖通设备有限公司 | The outdoor unit of two-pipe heat recovery system and there is its two-pipe heat recovery system |
| CN105627432A (en) * | 2015-12-25 | 2016-06-01 | 珠海格力电器股份有限公司 | Air conditioning system and defrosting control method thereof |
| CN110762642A (en) * | 2019-10-09 | 2020-02-07 | 青岛海尔空调电子有限公司 | Outdoor heat exchanger, air conditioning system and control method thereof |
| WO2022089661A1 (en) * | 2020-10-27 | 2022-05-05 | 青岛海尔空调器有限总公司 | Heat exchanging device and air conditioner |
| CN114222484A (en) * | 2021-12-20 | 2022-03-22 | 珠海格力电器股份有限公司 | Air conditioner |
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