CN104764241A - Air conditioner - Google Patents

Air conditioner Download PDF

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Publication number
CN104764241A
CN104764241A CN201510145781.8A CN201510145781A CN104764241A CN 104764241 A CN104764241 A CN 104764241A CN 201510145781 A CN201510145781 A CN 201510145781A CN 104764241 A CN104764241 A CN 104764241A
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CN
China
Prior art keywords
compressor
heat exchanger
magnetic valve
port
air
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201510145781.8A
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Chinese (zh)
Inventor
罗宝军
梁祥飞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gree Electric Appliances Inc of Zhuhai
Original Assignee
Gree Electric Appliances Inc of Zhuhai
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gree Electric Appliances Inc of Zhuhai filed Critical Gree Electric Appliances Inc of Zhuhai
Priority to CN201510145781.8A priority Critical patent/CN104764241A/en
Publication of CN104764241A publication Critical patent/CN104764241A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B13/00Compression machines, plants or systems, with reversible cycle
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00Fluid-circulation arrangements
    • F25B41/20Disposition of valves, e.g. of on-off valves or flow control valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2313/00Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/023Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)

Abstract

The invention relates to the field of refrigerating and heating equipment, and specifically relates to an air conditioner. The air conditioner comprises a first compressor, a second compressor, a first four-way valve, a second four-way valve, a first heat exchanger, a second heat exchanger and a third heat exchanger; one end opening of the third heat exchanger is respectively connected with the first four-way valve and the second four-way valve; three connectors of the first four-way valve are respectively connected with an air intake opening and air outlet of the first compressor and one end opening of the first heat exchanger; three connectors of the second four-way valve are respectively connected with the air intake opening and the air outlet of the second compressor and one end opening of the second heat exchanger; the other one of the end openings of the first heat exchanger and the second heat exchanger is respectively connected with the other end opening of the third heat exchanger through corresponding throttling devices. With the adoption of the air conditioner, two refrigerating temperature or two heating temperature can be synchronously provided, so that the energy efficiency of the system and the comfort are increased.

Description

A kind of air-conditioning
Technical field
The present invention relates to refrigeration and heating equipment field, be specifically related to a kind of to there is double-chilling temperatures or two air-conditioning heating temperature.
Background technology
Air-conditioner set is the main energy sources consumption systems of family, and user usually needs different cryogenic temperatures or different heats temperature in the process of using air-condition.Such as 1: air-conditioning usually needs a lower evaporating temperature in dehumidification process, and this evaporating temperature is approximately 2-7 DEG C, and the wind pushing temperature needed for user is only 15-18 DEG C.Again such as 2: in the winter time during Home Heating, the movable more room of people is wished that room temperature is higher, generally wishes that the temperature in this room is about 20 DEG C; And the movable less room of people is wished that room temperature is lower, generally wish that the temperature in this room is about 10 DEG C.
But existing air-conditioner set can only provide a condensation temperature or evaporating temperature usually.On the other hand, air-conditioning system needs evaporator evaporation temperature 5-15 DEG C lower than air-conditioning design temperature when freezing, and needs condenser condenses temperature than air-conditioning design temperature height 5-25 DEG C when heating.But in existing system, air is usually cooled by a step or is heated to design temperature.Therefore, in existing system, the heat of GOOD TASTE or cold are used by as the heat of low taste or cold, not only reduce the efficiency of system, also cause user's comfortableness to decline.
Based on above description, need badly and a kind ofly will have double-chilling temperatures or two air-conditioning heating temperature, a condensation temperature or evaporating temperature can only be provided to solve the air-conditioner set existed in prior art, not only reduce the efficiency of system, also cause the problem that user's comfortableness declines.
Summary of the invention
In view of this, an object of the present invention is to provide a kind of air-conditioning, and reaching set of system can provide two cryogenic temperatures or two to heat the effect of temperature simultaneously, not only achieves the lifting of system energy efficiency, also improves the comfortableness in user's use procedure.
Two of object of the present invention is to provide a kind of air-conditioning, and this air-conditioning achieves the parallel connection of two or more compressor in heating operations, achieves the lifting of heating capacity under single condenser and single evaporator.
Three of object of the present invention is to provide a kind of air-conditioning, when cooled object or heating object different from space residing for heat exchanger time, this air-conditioning by heat exchange medium still can with cooled object or heating object heat exchange.
The embodiment of the present invention is by the following technical solutions:
A kind of air-conditioning, comprises the first compressor, the second compressor, the first cross valve, the second cross valve, First Heat Exchanger, the second heat exchanger and the 3rd heat exchanger;
First port of described 3rd heat exchanger is connected with the port one of the first cross valve and the port one of the second cross valve respectively;
The port two of described first cross valve is connected with the air entry of the first compressor, port three is connected with the exhaust outlet of the first compressor, the first port of port four and First Heat Exchanger connects;
The port two of described second cross valve is connected with the air entry of the second compressor, port three is connected with the exhaust outlet of the second compressor, port four is connected with the first port of the second heat exchanger;
Second port of described First Heat Exchanger is connected with the second port of the 3rd heat exchanger by first throttle device; Second port of described second heat exchanger is connected with the second port of the 3rd heat exchanger by the second throttling arrangement.
As preferably, between the exhaust outlet and the first cross valve of described first compressor, be connected with the first magnetic valve; The second magnetic valve is connected with between the exhaust outlet and the second cross valve of the second compressor.
As preferably, the exhaust outlet of described first compressor is communicated with through connecting leg with the exhaust outlet of the second compressor, described connecting leg is connected with the 3rd magnetic valve.
As preferably, when identical indoor are temperature required identical, and start separately described first compressor or the second compressor and all can not meet and heat requirement, when heating, open the first magnetic valve and the 3rd magnetic valve, close the second magnetic valve, or open the second magnetic valve and the 3rd magnetic valve, close the first magnetic valve, described first compressor and the second compressor parallel, have identical pressure of inspiration(Pi) and pressure at expulsion.
As preferably, when identical indoor are temperature required identical, and described first compressor of startup or the second compressor all can not meet refrigeration requirement separately, during refrigeration, open the first magnetic valve, the second magnetic valve simultaneously, close the 3rd magnetic valve.
As preferably, when identical indoor are temperature required identical, and start separately described first compressor or the second compressor and all can meet and heat or freeze when requiring, open the first magnetic valve, close the second magnetic valve and the 3rd magnetic valve, start the first compressor operating; Or open the second magnetic valve, close the first magnetic valve and the 3rd magnetic valve, start the second compressor operating.
As preferably, when the temperature required difference in similar and different indoor, during refrigeration, open the first magnetic valve and the second magnetic valve, close the 3rd magnetic valve, described first compressor is identical with the pressure at expulsion of the second compressor; When heating, open the first magnetic valve and the second magnetic valve, close the 3rd magnetic valve, described first compressor is identical with the pressure of inspiration(Pi) of the second compressor.
As preferably, in described First Heat Exchanger, temperature can according to the compression ratio adjustment of the first compressor; In described second heat exchanger, temperature can according to the compression ratio adjustment of the second compressor.
As preferably, can open the first magnetic valve and the 3rd magnetic valve, close the second magnetic valve, described First Heat Exchanger is as condenser; Or open the 3rd magnetic valve and the second magnetic valve, close the first magnetic valve, described second heat exchanger is as condenser, when described second heat exchanger is as condenser, cold-producing medium absorbs heat evaporation in First Heat Exchanger, the first compressor is flowed into through the first cross valve, in the first compressor, after connecting leg, the 3rd magnetic valve, the second magnetic valve, the second cross valve, flow into the second heat exchanger after compression, flow into First Heat Exchanger through the second throttling arrangement and first throttle device after heat exchange condensation in the second heat exchanger.
As preferably, described First Heat Exchanger is communicated with the 4th heat exchanger by the first pipeline, and described second heat exchanger is communicated with the 5th heat exchanger by second pipe; Described first ducted heat exchange medium in First Heat Exchanger after heat exchange, then in the 4th heat exchanger with cooled or heating object heat exchange; Heat exchange medium in described second pipe is in the second heat exchanger after heat exchange, then in the 5th heat exchanger with cooled or heating object heat exchange.
As preferably, described first compressor comprises two-stage compressor or stage compressor; Described second compressor also comprises two-stage compressor or stage compressor.
As preferably, described first throttle device and described second throttling arrangement are electric expansion valve.
The Advantageous Effects of the technical scheme that the embodiment of the present invention proposes is:
(1) air-conditioning provided due to the application adopts two cross valves, two compressors, three heat exchangers, define two refrigeration or heating recycle system, two cryogenic temperatures or two can be provided to heat the effect of temperature so reach set of system simultaneously, not only achieve the lifting of system energy efficiency, also improve the comfortableness in user's use procedure.
(2) the first compressor provided due to the application is communicated with through connecting leg with the second compressor, connecting leg is connected with the 3rd magnetic valve, so this air-conditioning achieves the parallel connection of two compressors in heating operations, achieve the lifting of heating capacity under single condenser and single evaporator.
(3) First Heat Exchanger provided due to the application is communicated with the 4th heat exchanger by the first pipeline, second heat exchanger is communicated with the 5th heat exchanger by second pipe, first ducted heat exchange medium after First Heat Exchanger heat exchange, then with the 4th heat exchanger heat exchange; Heat exchange medium in second pipe is in the second heat exchanger after heat exchange, then with the 5th heat exchanger heat exchange.So when cooled object or heating object different from space residing for heat exchanger time, this air-conditioning by heat exchange medium still can with cooled object or heating object heat exchange.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing the embodiment of the present invention is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the content of the embodiment of the present invention and these accompanying drawings.
Fig. 1 is the structural representation of the air-conditioning that the application's specific embodiment one provides;
Fig. 2 is the structural representation of the air-conditioning that the application's specific embodiment two provides.
In figure:
1, the first compressor; 2, the first magnetic valve; 3, the first cross valve; 4, First Heat Exchanger; 5, first throttle device; 6, the 3rd heat exchanger; 7, the second throttling arrangement; 8, the second heat exchanger; 9, the second cross valve; 10, the second magnetic valve; 11, the second compressor; 12, the 3rd magnetic valve; 13, connecting leg; 14, the 4th heat exchanger; 15, the 5th heat exchanger; 16, the first pipeline; 17, second pipe.
Detailed description of the invention
The technical problem solved for making the present invention, the technical scheme of employing and the technique effect that reaches are clearly, be described in further detail below in conjunction with the technical scheme of accompanying drawing to the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those skilled in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment one
As shown in Figure 1, the air-conditioning that the application provides adopts two compressors, three heat exchangers and two cross valves, defines two refrigeration or heating recycle system, and two described circulatory systems share a heat exchanger.
Concrete, described air-conditioning comprises the first compressor 1, second compressor 11, first cross valve 3, second cross valve 9, First Heat Exchanger 4, second heat exchanger 8 and the 3rd heat exchanger 6.One of them circulatory system comprises described first compressor 1, first cross valve 3, First Heat Exchanger 4, the heat exchanger that another circulatory system comprises described second compressor 11, second cross valve 9, second heat exchanger 8, two described circulatory systems shared is described 3rd heat exchanger 6.Described 3rd heat exchanger 6, First Heat Exchanger 4, second heat exchanger 8 have two ports respectively, are respectively the first port and the second port.Described first cross valve 3 and the second cross valve 9 have four ports respectively, are respectively port one, port two, port three, port four.
First port of described 3rd heat exchanger 6 is connected with the port one of the first cross valve 3 and the port one of the second cross valve 9 respectively.
The port two of described first cross valve 3 is connected with the air entry of the first compressor 1, port three is connected with the exhaust outlet of the first compressor 1, the first port of port four and First Heat Exchanger 4 connects.Preferably, between described first compressor 1 exhaust outlet and the first cross valve 3, the first magnetic valve 2 is connected with.
The port two of described second cross valve 9 is connected with the air entry of the second compressor 11, port three is connected with the exhaust outlet of the second compressor 11, port four is connected with the first port of the second heat exchanger 8.Preferably, between the exhaust outlet and the second cross valve 9 of the second compressor 11, the second magnetic valve 10 is connected with.
Second port of described First Heat Exchanger 4 is connected with the second port of the 3rd heat exchanger 6 by first throttle device 5; Second port of described second heat exchanger 8 is connected with the second port of the 3rd heat exchanger 6 by the second throttling arrangement 7.
In the present embodiment, preferably, the exhaust outlet of described first compressor 1 is communicated with through connecting leg 13 with the exhaust outlet of the second compressor 11, described connecting leg 13 is connected with the 3rd magnetic valve 12.
In the present embodiment, in described First Heat Exchanger 4, temperature can according to the compression ratio adjustment of the first compressor 1; In described second heat exchanger 8, temperature can according to the compression ratio adjustment of the second compressor 11.
When the temperature required difference in the external world, the described external world can be identical indoor, also can be different indoor, when using this air conditioner refrigerating, open the first magnetic valve 2 and the second magnetic valve 10, close the 3rd magnetic valve 12, the liquid refrigerant flowed out from the 3rd heat exchanger 6 is divided into two strands, one cold-producing medium flows into First Heat Exchanger 4 through first throttle device 5, heat absorption evaporation in First Heat Exchanger 4, flow into the first compressor 1 through the first cross valve 3, in the first compressor 1, flow into the 3rd heat exchanger 6 through the first magnetic valve 2, first cross valve 3 after compression; Another strand of cold-producing medium flows into the second heat exchanger 8 through the second throttling arrangement 7, heat absorption evaporation in the second heat exchanger 8, flow into the second compressor 11 through the second cross valve 9, in the second compressor 11, flow into the 3rd heat exchanger 6 through the second magnetic valve 10, second cross valve 9 after compression.In this process, because described first compressor 1 and the second compressor 11 are vented altogether by two cross valves, therefore pressure at expulsion is identical, but pressure of inspiration(Pi) is different, so the first compressor 1 is different from the pressure ratio of the second compressor 11, therefore, First Heat Exchanger 4 is different with the evaporating temperature of the second heat exchanger 8, thus has two evaporating temperatures.
When the temperature required difference in the external world, when using this air-conditioning heating, open the first magnetic valve 2 and the second magnetic valve 10, close the 3rd magnetic valve 12, the liquid refrigerant flowed out from the 3rd heat exchanger 6 is divided into two strands, and one cold-producing medium is sucked by the first compressor 1 through the first cross valve 3, in the first compressor 1, flow into First Heat Exchanger 4 after compression through the first magnetic valve 2, first cross valve 3, in First Heat Exchanger 4, be condensed into liquid after heat exchange, after first throttle device 5, flow into the 3rd heat exchanger 6; Another strand of cold-producing medium is sucked by the second compressor 11 through the second cross valve 9, the second heat exchanger 8 is flowed into through the second magnetic valve 10, second cross valve 9 after compression in the second compressor 11, in the second heat exchanger 8, be condensed into liquid after heat exchange, after the second throttling arrangement 7, flow into the 3rd heat exchanger 6.Because described first compressor 1 and the second compressor 11 are by two cross valves air-breathing altogether, therefore pressure of inspiration(Pi) is identical, but pressure at expulsion is different, so pressure ratio is different, therefore First Heat Exchanger 4 is different with the condensation temperature of the second heat exchanger 8, thus has two condensation temperatures.
The air-conditioning provided due to this programme adopts two cross valves, two compressors, three heat exchangers, define two refrigeration or heating recycle system, two cryogenic temperatures or two can be provided to heat the effect of temperature so reach set of system simultaneously, not only achieve the lifting of system energy efficiency, also improve the comfortableness in user's use procedure.
To the refrigeration of air-conditioning or the description of heating operations when being more than the temperature for two different indoor needs are different, when the temperature required for two different indoor is identical, the process of refrigerastion of air-conditioning is identical with above-mentioned process of refrigerastion, the heating operations of air-conditioning is identical with above-mentioned heating operations, unique difference is, refrigeration or when heating, First Heat Exchanger 4 is identical with the running parameter of the second heat exchanger 8, the first compressor 1 is also identical with the running parameter of the second compressor 11.
When identical indoor are temperature required identical, and when the first compressor 1 and the second compressor 11 all can meet refrigeration or heat condition, open any one circulatory system and all can carry out freezing or heating.As the first magnetic valve 2 can be opened, close the second magnetic valve 10 and the 3rd magnetic valve 12, start the first compressor 1 and work, or also can open the second magnetic valve 10, close the first magnetic valve 2 and the 3rd magnetic valve 12, start the second compressor 11 and work.
Concrete, work when starting separately the first compressor 1, when heating, the liquid refrigerant flowed out from the 3rd heat exchanger 6 is sucked by the first compressor 1 through the first cross valve 3, First Heat Exchanger 4 is flowed into through the first magnetic valve 2, first cross valve 3 after compression in the first compressor 1, in First Heat Exchanger 4, be condensed into liquid after heat exchange, after first throttle device 5, flow into the 3rd heat exchanger 6.During refrigeration, the liquid refrigerant flowed out from the 3rd heat exchanger 6 flows into First Heat Exchanger 4 through first throttle device 5, heat absorption evaporation in First Heat Exchanger 4, flow into the first compressor 1 through the first cross valve 3, in the first compressor 1, flow into the 3rd heat exchanger 6 through the first magnetic valve 2, first cross valve 3 after compression.
Work when starting separately the second compressor 11, when heating, the liquid refrigerant flowed out from the 3rd heat exchanger 6 is sucked by the second compressor 11 through the second cross valve 9, the second heat exchanger 8 is flowed into through the second magnetic valve 10, second cross valve 9 after compression in the second compressor 11, in the second heat exchanger 8, be condensed into liquid after heat exchange, after the second throttling arrangement 7, flow into the 3rd heat exchanger 6.During refrigeration, the liquid refrigerant flowed out from the 3rd heat exchanger 6 flows into the second heat exchanger 8 through the second throttling arrangement 7, heat absorption evaporation in the second heat exchanger 8, flow into the second compressor 11 through the second cross valve 9, in the second compressor 11, flow into the 3rd heat exchanger 6 through the second magnetic valve 10, second cross valve 9 after compression.
When identical indoor are temperature required identical, and when the first compressor 1 and the second compressor 11 all can not meet refrigeration or heat condition, unlatching two circulatory systems are needed to carry out work.
During as heated, opening the first magnetic valve 2, the 3rd magnetic valve 12 simultaneously, closing the second magnetic valve 10, described first compressor 1 and the second compressor 11 can realize parallel connection by the 3rd magnetic valve 12 and connecting leg 13, have identical pressure of inspiration(Pi) and pressure at expulsion.And the first compressor 1 is all identical with the running parameter of the second compressor 11.Below idiographic flow:
The liquid refrigerant flowed out from the 3rd heat exchanger 6 is divided into two strands, one cold-producing medium is sucked by the first compressor 1 through the first cross valve 3, another strand of cold-producing medium is sucked by the second compressor 11 through the second cross valve 9, cold-producing medium in the second compressor 11 after compression through the 3rd magnetic valve 12 and connecting leg 13 with compress in the first compressor 1 after refrigerant mixed, flow into First Heat Exchanger 4 through the first magnetic valve 2, first cross valve 3, in First Heat Exchanger 4, after heat exchange, be condensed into liquid flow into the 3rd heat exchanger 6 through first throttle device 5.
Certainly, also can open the second magnetic valve 10, the 3rd magnetic valve 12 simultaneously, close the first magnetic valve 2, described first compressor 1 and the second compressor 11 can realize parallel connection by the 3rd magnetic valve 12 and connecting leg 13, have identical pressure of inspiration(Pi) and pressure at expulsion.And the first compressor 1 is all identical with the running parameter of the second compressor 11.
Now, the liquid refrigerant flowed out from the 3rd heat exchanger 6 is divided into two strands, one cold-producing medium is sucked by the first compressor 1 through the first cross valve 3, another strand of cold-producing medium is sucked by the second compressor 11 through the second cross valve 9, cold-producing medium in the first compressor 1 after compression through the 3rd magnetic valve 12 and connecting leg 13 with compress in the second compressor 11 after refrigerant mixed, flow into the second heat exchanger 8 through the second magnetic valve 10, second cross valve 9, in the second heat exchanger 8, after heat exchange, be condensed into liquid flow into the 3rd heat exchanger 6 through the second throttling arrangement 7.
During as freezed, open the first magnetic valve 2, second magnetic valve 10 simultaneously, close the 3rd magnetic valve 12, First Heat Exchanger 4 and the second heat exchanger 8 all carry out work, and First Heat Exchanger 4 in two circulatory systems is all identical with the running parameter of the second heat exchanger 8, the first compressor 1 is all identical with the running parameter of the second compressor 11.Below idiographic flow:
The liquid refrigerant flowed out from the 3rd heat exchanger 6 is divided into two strands, one cold-producing medium flows into First Heat Exchanger 4 through first throttle device 5, heat absorption evaporation in First Heat Exchanger 4, flow into the first compressor 1 through the first cross valve 3, in the first compressor 1, flow into the 3rd heat exchanger 6 through the first magnetic valve 2, first cross valve 3 after compression; Another strand of cold-producing medium flows into the second heat exchanger 8 through the second throttling arrangement 7, heat absorption evaporation in the second heat exchanger 8, flow into the second compressor 11 through the second cross valve 9, in the second compressor 11, flow into the 3rd heat exchanger 6 through the second magnetic valve 10, second cross valve 9 after compression.In this process, because the first compressor 1 is all identical with the running parameter of the second compressor 11, thus two circulatory systems have identical evaporating temperature.
The first compressor 1 provided due to this programme is communicated with through connecting leg 13 with the second compressor 11, connecting leg 13 is connected with the 3rd magnetic valve 12, so this air-conditioning achieves the parallel connection of two compressors in heating operations, achieves the lifting of heating capacity under single condenser.
In addition, the second heat exchanger 8 in this air-conditioning can also, as condenser, replace the 3rd heat exchanger 6 to carry out work.Concrete, during refrigeration, open the 3rd magnetic valve 12 and the second magnetic valve 10, close the first magnetic valve 2, cold-producing medium absorbs heat evaporation in First Heat Exchanger 4, the first compressor 1 is flowed into through the first cross valve 3, after connecting leg 13, the 3rd magnetic valve 12, second magnetic valve 10, second cross valve 9, the second heat exchanger 8 is flowed into after compression in the first compressor 1, now the function of the second heat exchanger 8 is condensers, in the second heat exchanger 8, flow into First Heat Exchanger 4 after heat exchange condensation through the second throttling arrangement 7 and first throttle device 5.
Equally, the First Heat Exchanger 4 in this air-conditioning also can, as condenser, replace the 3rd heat exchanger 6 to carry out work.Concrete, during refrigeration, open the first magnetic valve 2 and the 3rd magnetic valve 12, close the second magnetic valve 10, cold-producing medium absorbs heat evaporation in the second heat exchanger 8, the second compressor 11 is flowed into through the second cross valve 9, after connecting leg 13, the 3rd magnetic valve 12, first magnetic valve 2, first cross valve 3, First Heat Exchanger 4 is flowed into after compression in the second compressor 11, now the function of First Heat Exchanger 4 is condensers, in First Heat Exchanger 4, flow into the second heat exchanger 8 after heat exchange condensation through first throttle device 5 and the second throttling arrangement 7.
In the present embodiment, preferably, described first compressor 1 comprises two-stage compressor or stage compressor, and equally, described second compressor 11 also comprises two-stage compressor or stage compressor.
In the present embodiment, as preferably, described first throttle device 5 is electric expansion valve with described second throttling arrangement 7, but is not limited thereto.
Embodiment two
As shown in Figure 2, the air-conditioning difference that the present embodiment and embodiment one provide is, in embodiment one, First Heat Exchanger 4 and the second heat exchanger 8 directly carry out heat exchange with cooled or heating object, and in the present embodiment, described First Heat Exchanger 4 is communicated with the 4th heat exchanger 14 by the first pipeline 16, and described second heat exchanger 8 is communicated with the 5th heat exchanger 15 by second pipe 17.After heat exchange medium in described first pipeline 16 and First Heat Exchanger 4 heat exchange, then with the 4th heat exchanger 14 heat exchange.After heat exchange medium in described second pipe 17 and the second heat exchanger 8 heat exchange, then with the 5th heat exchanger 15 heat exchange.
Adopt the program, when cooled object or heating object different from space residing for First Heat Exchanger 4 or the second heat exchanger 8 time, this air-conditioning pass through heat exchange medium still can with cooled object or heating object heat exchange.
In the present embodiment, preferably, described heat exchange medium is water, is certainly not limited thereto, and can also select other heat exchange medium.
In addition, the air-conditioning that the present embodiment provides and the air conditioner structure that embodiment one provides and mode of operation all identical, do not repeat at this.
Note, above are only preferred embodiment of the present invention and institute's application technology principle.Skilled person in the art will appreciate that and the invention is not restricted to specific embodiment described here, various obvious change can be carried out for a person skilled in the art, readjust and substitute and can not protection scope of the present invention be departed from.Therefore, although be described in further detail invention has been by above embodiment, the present invention is not limited only to above embodiment, when not departing from the present invention's design, can also comprise other Equivalent embodiments more, and scope of the present invention is determined by appended right.

Claims (11)

1. an air-conditioning, it is characterized in that, comprise the first compressor (1), the second compressor (11), the first cross valve (3), the second cross valve (9), First Heat Exchanger (4), the second heat exchanger (8) and the 3rd heat exchanger (6);
First port of described 3rd heat exchanger (6) is connected with the port one of the first cross valve (3) and the port one of the second cross valve (9) respectively;
The port two of described first cross valve (3) is connected with the air entry of the first compressor (1), port three is connected with the exhaust outlet of the first compressor (1), the first port of port four and First Heat Exchanger (4) connects;
The port two of described second cross valve (9) is connected with the air entry of the second compressor (11), port three is connected with the exhaust outlet of the second compressor (11), port four is connected with the first port of the second heat exchanger (8);
Second port of described First Heat Exchanger (4) is connected with the second port of the 3rd heat exchanger (6) by first throttle device (5); Second port of described second heat exchanger (8) is connected with the second port of the 3rd heat exchanger (6) by the second throttling arrangement (7).
2. air-conditioning as claimed in claim 1, is characterized in that, between the exhaust outlet and the first cross valve (3) of described first compressor (1), be connected with the first magnetic valve (2); The second magnetic valve (10) is connected with between the exhaust outlet and the second cross valve (9) of the second compressor (11).
3. air-conditioning as claimed in claim 2, it is characterized in that, the exhaust outlet of described first compressor (1) is communicated with through connecting leg (13) with the exhaust outlet of the second compressor (11), described connecting leg (13) is connected with the 3rd magnetic valve (12).
4. air-conditioning as claimed in claim 3, it is characterized in that, when identical indoor are temperature required identical, and start separately described first compressor (1) or the second compressor (11) and all can not meet and heat requirement, when heating, open the first magnetic valve (2) and the 3rd magnetic valve (12), close the second magnetic valve (10), or open the second magnetic valve (10) and the 3rd magnetic valve (12), close the first magnetic valve (2), described first compressor (1) and the second compressor (11) parallel connection, there is identical pressure of inspiration(Pi) and pressure at expulsion.
5. air-conditioning as claimed in claim 3, it is characterized in that, when identical indoor are temperature required identical, and described first compressor (1) of startup or the second compressor (11) all can not meet refrigeration requirement separately, during refrigeration, open the first magnetic valve (2), the second magnetic valve (10) simultaneously, close the 3rd magnetic valve (12).
6. air-conditioning as claimed in claim 3, it is characterized in that, when identical indoor are temperature required identical, and start separately described first compressor (1) or the second compressor (11) and all can meet and heat or freeze when requiring, open the first magnetic valve (2), close the second magnetic valve (10) and the 3rd magnetic valve (12), start the first compressor (1) work; Or open the second magnetic valve (10), close the first magnetic valve (2) and the 3rd magnetic valve (12), start the second compressor (11) work.
7. air-conditioning as claimed in claim 3, it is characterized in that, when the temperature required difference in similar and different indoor, during refrigeration, open the first magnetic valve (2) and the second magnetic valve (10), close the 3rd magnetic valve (12), described first compressor (1) is identical with the pressure at expulsion of the second compressor (11); When heating, open the first magnetic valve (2) and the second magnetic valve (10), close the 3rd magnetic valve (12), described first compressor (1) is identical with the pressure of inspiration(Pi) of the second compressor (11).
8. air-conditioning as claimed in claim 1, it is characterized in that, described First Heat Exchanger (4) interior temperature can according to the compression ratio adjustment of the first compressor (1); The interior temperature of described second heat exchanger (8) can according to the compression ratio adjustment of the second compressor (11).
9. air-conditioning as claimed in claim 2, it is characterized in that, during refrigeration, open the first magnetic valve (2) and the 3rd magnetic valve (12), close the second magnetic valve (10), described First Heat Exchanger (4) is as condenser, and described second heat exchanger (8) is as evaporimeter; Or open the 3rd magnetic valve (12) and the second magnetic valve (10), close the first magnetic valve (2), described second heat exchanger (8) is as condenser, and described First Heat Exchanger (8) is as evaporimeter.
10. air-conditioning as claimed in claim 1, it is characterized in that, described First Heat Exchanger (4) is communicated with the 4th heat exchanger (14) by the first pipeline (16), and described second heat exchanger (8) is communicated with the 5th heat exchanger (15) by second pipe (17); Heat exchange medium in described first pipeline (16) in the First Heat Exchanger (4) after heat exchange, then in the 4th heat exchanger (14) with cooled or heating object heat exchange; Heat exchange medium in described second pipe (17) in the second heat exchanger (8) after heat exchange, then in the 5th heat exchanger (15) with cooled or heating object heat exchange.
11. air-conditionings as claimed in claim 1, is characterized in that, described first compressor (1) is two-stage compressor or stage compressor; Described second compressor (11) is two-stage compressor or stage compressor.
CN201510145781.8A 2015-03-30 2015-03-30 Air conditioner Pending CN104764241A (en)

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Application publication date: 20150708