CN207214502U - A kind of double overlapping air conditioner heat pump systems - Google Patents

A kind of double overlapping air conditioner heat pump systems Download PDF

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Publication number
CN207214502U
CN207214502U CN201721037579.4U CN201721037579U CN207214502U CN 207214502 U CN207214502 U CN 207214502U CN 201721037579 U CN201721037579 U CN 201721037579U CN 207214502 U CN207214502 U CN 207214502U
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heat exchanger
interface
heat
compressor
auxiliary cooling
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CN201721037579.4U
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杨杰
施永康
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Guangdong Gaoermei Refrigeration Equipment Co Ltd
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Guangdong Gaoermei Refrigeration Equipment Co Ltd
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Abstract

The utility model discloses a kind of double overlapping air conditioner heat pump systems, include with lower component:First compressor, the second compressor, First Heat Exchanger, the second heat exchanger, the 3rd heat exchanger, the 4th heat exchanger, first throttle part, the second throttle part and the 3rd throttle part, main refrigeration system and auxiliary cooling system are constituted by above-mentioned each part connection;The connection composition of the main refrigeration system:The main refrigerating system coolant flows through First Heat Exchanger and carries out heat release cooling, and the main refrigerating system coolant flows through the second heat exchanger and carries out heat absorption evaporation;The auxiliary cooling system refrigerant flows through the 3rd heat exchanger and carries out heat absorption evaporation, and the auxiliary cooling system refrigerant flows through the 4th heat exchanger and carries out heat release cooling;The application's has higher refrigerant degree of supercooling and the degree of superheat, reduces main refrigeration system compressor compression ratio, improves refrigeration heat and Energy Efficiency Ratio, it is ensured that system normally and efficiently works under the adverse circumstances of high temperature or low temperature.

Description

A kind of double overlapping air conditioner heat pump systems
Technical field
The empty technical field for carrying heat pump is the utility model is related to, refers in particular to a kind of double overlapping air conditioner heat pump systems.
Background technology
Existing air conditioner heat pump system is in refrigerating operaton, and as outdoor environment temperature raises, condensation temperature and then rises, from And cause outdoor condenser heat exchange amount to tail off, returning liquid temperature degree rises, and evaporation side enthalpy difference value reduces, and then refrigerating capacity diminishes, efficiency Reduce.In addition, existing air conditioner heat pump system, in heating operation, as environment temperature reduces, evaporating temperature and then reduces, so as to Outdoor enthalpy difference value is caused to diminish, the heat that outdoor unit absorbs from evaporator tails off, and system heating capacity declines, in delivery temperature Rise, influence unit normal operation.Therefore, existing air conditioner heat pump system in the presence of a harsh environment, often can not normally be worked.
Utility model content
The purpose of this utility model is overcome the deficiencies in the prior art, there is provided one kind is applied to adverse circumstances, degree of supercooling And double overlapping air conditioner heat pump systems that the degree of superheat is high, Energy Efficiency Ratio is high.
In order to realize above-mentioned purpose, a kind of double overlapping air conditioner heat pump systems provided by the utility model, include with Lower component:First compressor, the second compressor, First Heat Exchanger, the second heat exchanger, the 3rd heat exchanger, the 4th heat exchanger, first Throttle part, the second throttle part and the 3rd throttle part, wherein, the 3rd heat exchanger contains tetra- interfaces of a, b, c, d, institute State the 4th heat exchanger and contain tetra- interfaces of i, j, m, n, the interface a and interface b of the 3rd heat exchanger, interface c and interface d distinguish It is connected in the 3rd heat exchanger;The interface i and interface j of 4th heat exchanger, interface m and interface n are respectively at the 4th heat exchange It is connected in device;Main refrigeration system and auxiliary cooling system are constituted by above-mentioned each part connection;The main refrigeration system Connection composition:Interface j of the export and import of first compressor respectively with First Heat Exchanger and the 4th heat exchanger is connected, The interface a of 3rd heat exchanger is connected with First Heat Exchanger, the first throttle part both ends respectively with the 3rd heat exchanger Interface b and the second heat exchanger be connected;The second throttle part both ends respectively with the second heat exchanger and the 4th heat exchanger Interface i is connected;The main refrigerating system coolant flows through First Heat Exchanger and carries out heat release cooling, the main refrigerating system coolant stream Heat absorption evaporation is carried out through the second heat exchanger;The connection composition of the auxiliary cooling system:The outlet of second compressor and enter Mouthful be connected respectively with the interface n of the 4th heat exchanger and the interface c of the 3rd heat exchanger, the 3rd throttle part both ends respectively with The interface m of 4th heat exchanger and the interface d of the 3rd heat exchanger are connected;The auxiliary cooling system refrigerant flows through the 3rd heat exchanger Heat absorption evaporation is carried out, the auxiliary cooling system refrigerant flows through the 4th heat exchanger and carries out heat release cooling.
Further, the refrigerant of the main refrigeration system and the refrigerant of auxiliary cooling system change in the 3rd heat exchanger and the 4th Heat exchange is carried out in hot device.
The utility model uses above-mentioned scheme, and its advantage is:Changed using auxiliary cooling system refrigerant the 3rd The waste heat of main refrigerating system coolant is absorbed in hot device, so as to reduce the refrigerant temperature for flowing to the main heat exchanger of refrigerating system coolant second Degree, degree of supercooling is improved, and then improve the refrigerating capacity and Energy Efficiency Ratio of main refrigeration system;Changed using main refrigerating system coolant the 4th The heat of auxiliary cooling system refrigerant is absorbed in hot device, it is cold so as to improve main refrigerating system coolant internal circulating load and compressor return air Matchmaker's degree of superheat, compression ratio is reduced, and then improve heating capacity and Energy Efficiency Ratio;Pass through following for main refrigeration system and auxiliary cooling Ring, this pair of overlapping air conditioner heat pump system have higher refrigerant degree of supercooling and the degree of superheat, reduce main refrigeration system compressor pressure Contracting ratio, improve refrigeration heat and Energy Efficiency Ratio, it is ensured that system normally and efficiently works under the adverse circumstances of high temperature or low temperature.
Brief description of the drawings
Fig. 1 is double overlapping air conditioner heat pump system schematic diagrames.
Fig. 2 is the main refrigeration system operating diagram of double overlapping air conditioner heat pump systems.
Fig. 3 is the main refrigeration system and auxiliary cooling system while operating diagram of double overlapping air conditioner heat pump systems.
Wherein, the compressors of 1- first, the compressors of 2- second, 3- First Heat Exchangers, the heat exchangers of 4- second, 5- the 3rd exchange heat Device, the heat exchangers of 6- the 4th, 7- first throttle parts, the throttle parts of 8- second, the throttle parts of 9- the 3rd.
Embodiment
The utility model is further described with reference to specific embodiment.
Referring to shown in accompanying drawing 1, in the present embodiment, a kind of double overlapping air conditioner heat pump systems, include with lower component:First Compressor 1, the second compressor 2, First Heat Exchanger 3, the second heat exchanger 4, the 3rd heat exchanger 5, the 4th heat exchanger 6, first throttle Part 7, the second throttle part 8 and the 3rd throttle part 9, wherein, the 3rd heat exchanger 5 contains tetra- interfaces of a, b, c, d, and the 4th changes Hot device 6 contains tetra- interfaces of i, j, m, n;The interface a and interface b of 3rd heat exchanger 5, interface c and interface d are respectively at the 3rd heat exchange It is connected in device 5;Interface i and interface j, the interface m of 4th heat exchanger 6 are connected with interface n respectively in the 4th heat exchanger 6; Main refrigeration system and auxiliary cooling system are constituted by above-mentioned each part connection.
In the present embodiment, the connection composition of main refrigeration system:The export and import of first compressor 1 changes with first respectively Hot device 3 is connected with the interface j with the 4th heat exchanger 6;The interface a of 3rd heat exchanger 5 is connected with First Heat Exchanger 3, and first The both ends of throttle part 7 are connected with the interface b of the 3rd heat exchanger 5 and the second heat exchanger 4 respectively;The both ends of second throttle part 8 point Interface i not with the second heat exchanger 4 and the 4th heat exchanger 6 is connected;Main refrigerating system coolant flows through First Heat Exchanger 3 and put Heat drop temperature, main refrigerating system coolant flow through the second heat exchanger 4 and carry out heat absorption evaporation.
In the present embodiment, the connection composition of auxiliary cooling system:The export and import of second compressor 2 is respectively with the 4th The interface n of heat exchanger 6 and the interface C of the 3rd heat exchanger 5 are connected, the both ends of the 3rd throttle part 9 respectively with the 4th heat exchanger 6 The interface d of interface m and the 3rd heat exchanger 5 is connected;Auxiliary cooling system refrigerant flows through the 3rd heat exchanger 5 and carries out heat absorption evaporation, Auxiliary cooling system refrigerant flows through the 4th heat exchanger 6 and carries out heat release cooling.
Specifically, the refrigerant of the refrigerant of main refrigeration system and auxiliary cooling system is in the 3rd heat exchanger 5 and the 4th heat exchange Heat exchange is carried out in device 6.
The function of double overlapping air conditioner heat pump systems is illustrated in conjunction with specific implementation.
1)Main refrigeration system independent operating
Referring to shown in accompanying drawing 2, when outdoor environment temperature is in normal range (NR), suitable double overlapping air conditioner heat pump systems are run When, this pair of overlapping air conditioner heat pump system starts main refrigeration system and is freezed or heated.
The refrigerant of main refrigeration system is compressed into the gas of HTHP through the first compressor 1, flows to First Heat Exchanger 3 and carries out Heat release cools, and the refrigerant after heat release cooling flows to the interface a of the 3rd heat exchanger 5, is then flowed to by the interface b of the 3rd heat exchanger 5 First throttle part 7, refrigerant flow to the second heat exchanger 4 after the throttling of first throttle part 7 and carry out heat absorption evaporation, heat absorption evaporation Refrigerant afterwards flows to the second throttle part 8 by the second heat exchanger 4, then flows to connecing for the 4th heat exchanger 6 by the second throttle part 8 Mouth i, refrigerant then flow back to compressor by the interface j of the 4th heat exchanger 6;By above-mentioned circulation stream, main refrigeration system realization pair The heating of First Heat Exchanger 3 and the refrigeration of the 3rd heat exchanger 5.
2)Main refrigeration system and auxiliary cooling system are run simultaneously
Referring to shown in accompanying drawing 3, when outdoor environment temperature is in it is higher or lower when, this pair of overlapping air conditioner heat pump system is simultaneously Start main refrigeration system and auxiliary cooling system.
The refrigerant of main refrigeration system is compressed into the gas of HTHP through the first compressor 1, flows to First Heat Exchanger 3 and carries out Heat release cools, and the refrigerant after heat release cooling flows to the interface a of the 3rd heat exchanger 5, and refrigerant in the 3rd heat exchanger 5 drop again by heat release Temperature, the refrigerant after heat release cooling flow to first throttle part 7 by the interface b of the 3rd heat exchanger 5, and refrigerant passes through first throttle part The second heat exchanger 4 is flowed to after 7 throttlings and carries out heat absorption evaporation, the refrigerant after heat absorption evaporation flows to the second throttling by the second heat exchanger 4 Part 8, flows to the interface i of the 4th heat exchanger 6 after then being throttled by the second throttle part 8, refrigerant in the 4th heat exchanger 6 again Heat absorption evaporation, the refrigerant after heat absorption evaporation then flow back to the first compressor 1 by the interface j of the 4th heat exchanger 6;Followed by above-mentioned Ring, main refrigeration system realize the heating to First Heat Exchanger 3 and the refrigeration of the second heat exchanger 4, and main refrigerating system coolant is the 3rd Heat exchanger 5 realizes that supercooling and the 4th heat exchanger 6 realized hot function.
Meanwhile auxiliary cooling system refrigerant is compressed into the gas of HTHP through the second compressor 2, flows to the 4th heat exchanger 6 interface n, refrigerant heat release in the 4th heat exchanger 6 cool, and the refrigerant after heat release cooling is flowed to by the interface m of the 4th heat exchanger 6 3rd throttle part 9, refrigerant flows to the interface d of the 3rd heat exchanger 5 after the throttling of the 3rd throttle part 9, and refrigerant is in the 3rd heat exchange Heat absorption evaporation in device 5, the refrigerant after heat absorption evaporation flow to the second compressor 2 by the interface c of the 3rd heat exchanger 5;Followed by above-mentioned Ring, 4 interior realize of the second heat exchanger are subcooled function to main refrigerating system coolant, realized in the 4th heat exchanger 6 to main refrigeration system Refrigerant crosses hot function.
The refrigerant of main refrigeration system and the refrigerant of auxiliary cooling system enter in the 3rd heat exchanger 5 and the 4th heat exchanger 6 Row heat exchange.Main refrigeration system shares the 3rd heat exchanger 5 and the 4th heat exchanger 6 with auxiliary cooling system by coupled modes, first First, the main refrigerating system coolant through the heat release of First Heat Exchanger 3 cooling passes through the 3rd heat exchanger 5 heat release cooling and auxiliary cooling again System refrigerant is absorbed heat by the 3rd heat exchanger 5 and evaporated, i.e., absorbs main system in the 3rd heat exchanger 5 using auxiliary cooling system refrigerant The waste heat of cooling system refrigerant, so as to reduce the refrigerant temperature for flowing to main the second heat exchanger of refrigerating system coolant 4, improve supercooling Degree, and then improve the refrigerating capacity and Energy Efficiency Ratio of main refrigeration system;Secondly, the main refrigeration system through the heat absorption evaporation of the second heat exchanger 4 Unite refrigerant by the 4th heat exchanger 6 again absorb heat evaporation and auxiliary cooling system refrigerant by the heat release of the 4th heat exchanger 6 cooling, i.e., The heat of auxiliary cooling system refrigerant is absorbed in the 4th heat exchanger 6 using main refrigerating system coolant, so as to improve main refrigeration System refrigerant circulation and the compressor return air refrigerant degree of superheat, compression ratio is reduced, and then improve heating capacity and Energy Efficiency Ratio.Pass through The circulation of main refrigeration system and auxiliary cooling, this pair of overlapping air conditioner heat pump system have higher refrigerant degree of supercooling and overheat Degree, reduces main refrigeration system compressor compression ratio, improves refrigeration heat and Energy Efficiency Ratio, it is ensured that system is in high temperature or low temperature Normally and efficiently worked under adverse circumstances.
Embodiment described above is only preferred embodiment of the present utility model, and any form is not done to the utility model On limitation.Any those skilled in the art, in the case where not departing from technical solutions of the utility model ambit, in utilization The technology contents for stating announcement make more possible variations and retouching to technical solutions of the utility model, or modification is this practicality New equivalent embodiment.Therefore all contents without departing from technical solutions of the utility model, the thinking according to the utility model are made Equivalent equivalence changes, all should be covered by the scope of protection of the utility model.

Claims (2)

1. a kind of double overlapping air conditioner heat pump systems, include with lower component:First compressor(1), the second compressor(2), first Heat exchanger(3), the second heat exchanger(4), the 3rd heat exchanger(5), the 4th heat exchanger(6), first throttle part(7), second throttling Part(8)With the 3rd throttle part(9), wherein, the 3rd heat exchanger(5)Containing tetra- interfaces of a, b, c, d, the described 4th changes Hot device(6)Contain tetra- interfaces of i, j, m, n, it is characterised in that:3rd heat exchanger(5)Interface a and interface b, interface c with Interface d is respectively at the 3rd heat exchanger(5)Inside it is connected;4th heat exchanger(6)Interface i and interface j, interface m and interface n Respectively at the 4th heat exchanger(6)Inside it is connected;Main refrigeration system and auxiliary cooling system are constituted by above-mentioned each part connection;
The connection composition of the main refrigeration system:First compressor(1)Export and import respectively with First Heat Exchanger(3) With the 4th heat exchanger(6)Interface j be connected, the 3rd heat exchanger(5)Interface a and First Heat Exchanger(3)It is connected, institute State first throttle part(7)Both ends respectively with the 3rd heat exchanger(5)Interface b and the second heat exchanger(4)It is connected;Described second Throttle part(8)Both ends respectively with the second heat exchanger(4)With the 4th heat exchanger(6)Interface i be connected;The main refrigeration system Refrigerant flows through First Heat Exchanger(3)Heat release cooling is carried out, the main refrigerating system coolant flows through the second heat exchanger(4)Absorbed heat Evaporation;
The connection composition of the auxiliary cooling system:Second compressor(2)Export and import respectively with the 4th heat exchanger (6)Interface n and the 3rd heat exchanger(5)Interface c be connected, the 3rd throttle part(9)Both ends exchange heat with the 4th respectively Device(6)Interface m and the 3rd heat exchanger(5)Interface d be connected;The auxiliary cooling system refrigerant flows through the 3rd heat exchanger (5)Heat absorption evaporation is carried out, the auxiliary cooling system refrigerant flows through the 4th heat exchanger(6)Carry out heat release cooling.
A kind of 2. double overlapping air conditioner heat pump systems according to claim 1, it is characterised in that:The main refrigeration system it is cold The refrigerant of matchmaker and auxiliary cooling system is in the 3rd heat exchanger(5)With the 4th heat exchanger(6)Interior carry out heat exchange.
CN201721037579.4U 2017-08-18 2017-08-18 A kind of double overlapping air conditioner heat pump systems Active CN207214502U (en)

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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107328129A (en) * 2017-08-18 2017-11-07 广东高而美制冷设备有限公司 A kind of pair of overlapping air conditioner heat pump system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107328129A (en) * 2017-08-18 2017-11-07 广东高而美制冷设备有限公司 A kind of pair of overlapping air conditioner heat pump system

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