CN207072233U - A kind of refrigeration system of huge discharge automobile air conditioner compressor - Google Patents

A kind of refrigeration system of huge discharge automobile air conditioner compressor Download PDF

Info

Publication number
CN207072233U
CN207072233U CN201720725259.1U CN201720725259U CN207072233U CN 207072233 U CN207072233 U CN 207072233U CN 201720725259 U CN201720725259 U CN 201720725259U CN 207072233 U CN207072233 U CN 207072233U
Authority
CN
China
Prior art keywords
cooling assembly
heat exchanger
compressor
refrigeration system
air conditioner
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.)
Expired - Fee Related
Application number
CN201720725259.1U
Other languages
Chinese (zh)
Inventor
阚世元
王兵
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.)
Jiangsu College of Safety Technology
Original Assignee
Jiangsu College of Safety Technology
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 Jiangsu College of Safety Technology filed Critical Jiangsu College of Safety Technology
Priority to CN201720725259.1U priority Critical patent/CN207072233U/en
Application granted granted Critical
Publication of CN207072233U publication Critical patent/CN207072233U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses a kind of refrigeration system of huge discharge automobile air conditioner compressor, including indoor set and outdoor unit, the indoor set includes compressor, main cooling assembly, secondary cooling assembly and indoor heat exchanger, the outdoor unit includes outdoor heat exchanger, connecting tube is provided between the indoor set and outdoor unit, and the connecting tube is provided with the first stop valve and the second stop valve;The exhaust outlet of the compressor is connected with outdoor heat exchanger one end, the other end of the outdoor heat exchanger is connected with one end of the main cooling assembly, secondary cooling assembly and indoor heat exchanger, the other end of the main cooling assembly, secondary cooling assembly and indoor heat exchanger is connected with the gas returning port of the compressor, and the loop formed under air conditioning mode and the loop under heat pipe;Cycle refrigeration system is additionally provided with the indoor set.The utility model cryogenic temperature is easily controllable, timely and good refrigeration effect of freezing, and can be good at coordinating the work of huge discharge compressor of air conditioner, meets actual operation requirements.

Description

A kind of refrigeration system of huge discharge automobile air conditioner compressor
Technical field
The present invention relates to a kind of refrigeration system of huge discharge automobile air conditioner compressor, belong to vehicle compressor refrigeration system skill Art field.
Background technology
Automobile air conditioner compressor is the heart of automobile air conditioning refrigerating system, plays the work of compression and conveying refrigerant vapour With;Compressor point:Two kinds of immutable discharge capacity and variable displacement.Wherein, the capacity of fixed displacement compressor is with engine The raising of rotating speed and proportional raising, it can not change power output automatically according to the demand of refrigeration, and to engine The influence of oil consumption is bigger, and its control is typically by gathering the temperature signal of evaporator air outlet, when temperature reaches setting Temperature, electromagnetic clutch for compressor unclamp, and compressor is stopped;After temperature raises, electromagnetic clutch is combined, and compressor is opened Beginning work, fixed displacement compressor are also controlled by air-conditioning system pressure, and when pipeline inner pressure is too high, compressor is stopped. Variable compressor can not gather evaporator air outlet according to the temperature automatic adjustment power output of setting, air-conditioner control system Temperature signal, but control the compression ratio of compressor to automatically adjust air outlet according to the variable signal of pressure in air-conditioning duct Temperature, in the overall process of refrigeration, compressor is work all the time, and the regulation for intensity of freezing is completely dependent on inside compressor Pressure-regulating valve control;When the hypertonia at air-conditioning duct inner high voltage end, pressure-regulating valve shortens compressor inner carrier Stroke can thus reduce refrigeration intensity to reduce compression ratio;When high pressure end pressure drops to a certain degree, on low pressure end pressure When being raised to a certain degree, pressure-regulating valve then increases piston stroke to improve refrigeration intensity.
With the fast development of auto industry, huge discharge automobile air conditioner compressor has begun to come into operation, in order that The cornering ability of automobile improve it is more, huge discharge automobile air conditioner compressor must have the characteristics that no-clutch suction put, lightweight. But the huge discharge of huge discharge automobile air conditioner compressor in the course of the work can bring substantial amounts of heat so that compressor operating The temperature of environment is steeply risen, and then directly affects the service behaviour of compressor, and compressor can be burnt when serious;Therefore, it is necessary to Aided design corresponding refrigeration system controls the discharge capacity of huge discharge compressor operating, and is directed to air conditioning for automobiles pressure in the prior art The refrigerant system configurations of contracting machine are complex, and the cryogenic temperature of refrigeration system is not easy to control, and refrigeration is not in time and effect is poor.For This is, it is necessary to a kind of refrigeration system of Aided design, to overcome the shortcomings of the prior art.
The content of the invention
The present invention is exactly in view of the deficienciess of the prior art, providing a kind of refrigeration system of huge discharge automobile air conditioner compressor System, the refrigerant system configurations are simplified, and cryogenic temperature is easily controllable, timely and good refrigeration effect of freezing, can be good at coordinating Huge discharge compressor of air conditioner works, and meets actual operation requirements.
To solve the above problems, the technical solution used in the present invention is as follows:
A kind of refrigeration system of huge discharge automobile air conditioner compressor, including indoor set and outdoor unit, the indoor set include Compressor, main cooling assembly, secondary cooling assembly and indoor heat exchanger, the outdoor unit include outdoor heat exchanger, the main system The connection being connected is provided between cold component, the secondary cooling assembly and the indoor heat exchanger and the outdoor heat exchanger Pipe, and the first stop valve and the second stop valve are provided with the connecting tube;
The exhaust outlet of the compressor is connected with described outdoor heat exchanger one end, the other end of the outdoor heat exchanger and institute The one end for stating main cooling assembly, the secondary cooling assembly and the indoor heat exchanger is connected, the main cooling assembly, the pair The other end of cooling assembly and the indoor heat exchanger is connected with the gas returning port of the compressor, and is formed under air conditioning mode Loop under loop and heat pipe;
Cycle refrigeration system is additionally provided with the indoor set, and the main cooling assembly, the secondary cooling assembly are to set Put in the cycle refrigeration system.
As the improvement of above-mentioned technical proposal, the air conditioning mode includes air conditioner refrigerating pattern and air conditioner coolant recovery mould Formula, the heat pipe pattern include heat-pipe refrigerating pattern and heat pipe refrigerant take-back model.
As the improvement of above-mentioned technical proposal, the indoor set also includes:
First electromagnetic steering valve, the first electromagnetic steering valve are arranged on the main cooling assembly, the secondary cooling assembly And between the indoor heat exchanger and the compressor return air mouth;
Second electromagnetic steering valve, the second electromagnetic steering valve are arranged on the main cooling assembly, the secondary cooling assembly And between the indoor heat exchanger and the outdoor heat exchanger;
3rd electromagnetic steering valve, the 3rd electromagnetic steering valve is arranged on the first electromagnetic steering valve, the outdoor is changed Between hot device and the compressor;
When cycle refrigeration system switches refrigeration mode, pass through the first electromagnetic steering valve, second electromagnetic steering Vavle switching refrigerant flows to.
As the improvement of above-mentioned technical proposal, is provided between the main cooling assembly and the first electromagnetic steering valve One pressure controller, second pressure controller is provided between the secondary cooling assembly and the second electromagnetic steering valve;In sky When adjusting refrigerant recovering pattern, when pressure caused by refrigerant reaches default first pressure recovery value, first pressure controller breaks Open;In heat pipe refrigerant take-back model, when pressure caused by refrigerant reaches default second pressure recovery value, second pressure control Device processed disconnects.
As the improvement of above-mentioned technical proposal, flaggy, the flaggy and the compression are additionally provided with around the compressor Temperature sensor and pressure sensor are provided between machine.
As the improvement of above-mentioned technical proposal, the cycle refrigeration system includes temperature-compensating room and cool room, the master Cooling assembly and the secondary cooling assembly are provided in the temperature-compensating room, and the compressor is provided in the cool room Interior, temperature-compensating room one end is provided with airflow inlet, and temperature sense medium is additionally provided with the temperature-compensating room and is drawn Flow guide carries out the air inducing unit of ringing, is provided between the temperature-compensating room and the cool room and transmits communicating pipe.
As the improvement of above-mentioned technical proposal, kinetic pump is provided with the airflow inlet, is provided with the kinetic pump Unloading valve, it is additionally provided between the main cooling assembly and the secondary cooling assembly and dries condensation fiber tube.
As the improvement of above-mentioned technical proposal, the refrigerating method step of the huge discharge automobile air conditioner compressor refrigeration system Suddenly:
According to outdoor environment temperature, corresponding refrigeration mode is selected, controls corresponding indoor heat exchanger and cooling assembly work Make;
When switching refrigeration mode, the refrigerant recovering pattern that switches under current refrigeration pattern, current refrigeration pattern is reclaimed Loop in whole refrigerants;
Indoor heat exchanger and cooling assembly work after control switching, and control corresponding electromagnetic steering valve to commutate, switching Refrigerant flows to.
As the improvement of above-mentioned technical proposal, the refrigerating method of the huge discharge automobile air conditioner compressor refrigeration system:
Corresponding refrigeration mode is selected according to outdoor environment temperature, controls corresponding indoor heat exchanger and cooling assembly to work The step of include:
When outdoor environment temperature is more than default temperature value, select air conditioning mode to be freezed, control indoor heat exchanger With corresponding main cooling assembly, the work of secondary cooling assembly;
When outdoor environment temperature is less than or equal to preset temperature value, select heat pipe pattern to be freezed, exchanged heat in control room Device and corresponding secondary cooling assembly work.
As the improvement of above-mentioned technical proposal, indoor heat exchanger and cooling assembly work after the control switching, and control Corresponding electromagnetic steering valve is made, switching the step of refrigerant flows to includes:
If current refrigeration pattern is air conditioning mode, when switching refrigeration mode, indoor heat exchanger and cooling assembly work are controlled Make, control the first electromagnetic steering valve and the commutation of the second electromagnetic steering valve, switching refrigerant flow direction;
If current refrigeration pattern is heat pipe pattern, when switching refrigeration mode, indoor heat exchanger and cooling assembly, control are controlled Make the first electromagnetic steering valve and the commutation of the second electromagnetic steering valve, switching refrigerant flow direction.
Compared with prior art, implementation result of the invention is as follows by the present invention:
A kind of refrigeration system of huge discharge automobile air conditioner compressor of the present invention, the refrigerant system configurations are simplified, Cryogenic temperature is easily controllable, timely and good refrigeration effect of freezing, and can be good at coordinating the work of huge discharge compressor of air conditioner, greatly The cornering ability of automobile is improved, extends service life, meets actual operation requirements.
Brief description of the drawings
Fig. 1 is a kind of refrigerant system configurations schematic diagram of huge discharge automobile air conditioner compressor of the present invention;
Fig. 2 is cycle refrigeration system structural representation of the present invention.
Embodiment
Illustrate present disclosure below in conjunction with specific embodiments.
As shown in Figure 1 to Figure 2, it is a kind of refrigeration system of huge discharge automobile air conditioner compressor of the present invention, including Indoor set 10 and outdoor unit 20, indoor set 10 include compressor 11, main cooling assembly 12, secondary cooling assembly 13 and indoor heat exchange Device 14, outdoor unit 20 include outdoor heat exchanger 21, main cooling assembly 12, secondary cooling assembly 13 and indoor heat exchanger 14 and outdoor The connecting tube 30 being connected is provided between heat exchanger 21, and the first stop valve 31 and the second stop valve are provided with connecting tube 30 32;The exhaust outlet of compressor 11 is connected with the one end of outdoor heat exchanger 21, the other end of outdoor heat exchanger 21 and main cooling assembly 12, One end of secondary cooling assembly 13 and indoor heat exchanger 14 is connected, main cooling assembly 12, secondary cooling assembly 13 and indoor heat exchange The other end of device 14 is connected with the gas returning port of compressor 11, and the loop formed under air conditioning mode and the loop under heat pipe;Room Cycle refrigeration system is additionally provided with interior machine 10, and main cooling assembly 12, secondary cooling assembly 13 are provided in the circularly cooling In system.The present invention simplifies the structure, and cryogenic temperature is easily controllable, timely and good refrigeration effect of freezing, can be good at coordinating Huge discharge compressor of air conditioner works, and greatly improves the cornering ability of automobile, extends service life, meets that actual use will Ask.
Specifically, air conditioning mode includes air conditioner refrigerating pattern and air conditioner coolant take-back model, and the heat pipe pattern includes heat Pipe refrigeration mode and heat pipe refrigerant take-back model.
Further with improvement, as shown in fig.1, the indoor set 10 also includes:
First electromagnetic steering valve 15, the first electromagnetic steering valve 15 are arranged on main cooling assembly 12, secondary cooling assembly 13 And between indoor heat exchanger 14 and the gas returning port of compressor 11;
Second electromagnetic steering valve 16, the second electromagnetic steering valve 16 are arranged on main cooling assembly 12, secondary cooling assembly 13 and room Between interior heat exchanger 14 and outdoor heat exchanger 21;
3rd electromagnetic steering valve 17, the 3rd electromagnetic steering valve 17 are arranged on the first electromagnetic steering valve 15, outdoor heat exchanger 21 Between the compressor 11;
When cycle refrigeration system switches refrigeration mode, cut by the first electromagnetic steering valve 15, the second electromagnetic steering valve 16 Change refrigerant flow direction.
Further with improvement, as shown in fig.1, being provided with first between the electromagnetic steering valve 15 of main cooling assembly 12 and first Pressure controller 18, second pressure controller 19 is provided between the secondary electromagnetic steering valve 16 of cooling assembly 13 and second;In air-conditioning During refrigerant recovering pattern, when pressure caused by refrigerant reaches default first pressure recovery value, first pressure controller 18 is disconnected Open;In heat pipe refrigerant take-back model, when pressure caused by refrigerant reaches default second pressure recovery value, second pressure control Device 19 processed disconnects.
Further with improvement, as shown in fig.1, being additionally provided with flaggy 40, flaggy 40 and compressor 11 around compressor 11 Between be provided with temperature sensor 41 and pressure sensor 42.
Specifically, as shown in fig.2, cycle refrigeration system includes temperature-compensating room 50 and cool room 60, main cooling assembly 12 and secondary cooling assembly 13 be provided in temperature-compensating room 50, compressor 11 is provided in cool room 60, temperature-compensating room 50 one end are provided with airflow inlet 51, and temperature sense medium 54 is additionally provided with temperature-compensating room 50 and guiding air-flow is circulated The air inducing unit 55 of effect, it is provided between temperature-compensating room 50 and cool room 60 and transmits communicating pipe 70.
Further with improvement, as shown in fig.2, being provided with kinetic pump 52 on airflow inlet 51, it is provided with kinetic pump 52 Unloading valve 53, it is additionally provided between main cooling assembly 12 and secondary cooling assembly 13 and dries condensation fiber tube 56.
Specifically, a kind of refrigerating method of the refrigeration system of huge discharge automobile air conditioner compressor is as follows:
According to outdoor environment temperature, corresponding refrigeration mode is selected, controls corresponding indoor heat exchanger 14 and cooling assembly Work;
When switching refrigeration mode, the refrigerant recovering pattern that switches under current refrigeration pattern, current refrigeration pattern is reclaimed Loop in whole refrigerants;
Indoor heat exchanger 14 and cooling assembly work after control switching, and control corresponding electromagnetic steering valve to commutate, cut Change refrigerant flow direction.
Further, corresponding refrigeration mode is selected according to outdoor environment temperature, controls the corresponding He of indoor heat exchanger 14 The step of cooling assembly works includes:
When outdoor environment temperature is more than default temperature value, select air conditioning mode to be freezed, control indoor heat exchanger 14 work with corresponding main cooling assembly 12, secondary cooling assembly 13;
When outdoor environment temperature is less than or equal to preset temperature value, select heat pipe pattern to be freezed, exchanged heat in control room Device 14 and corresponding secondary cooling assembly 13 work.
Further, the indoor heat exchanger 14 after control switching and cooling assembly work, and control corresponding electromagnetic steering Valve, switching the step of refrigerant flows to includes:
If current refrigeration pattern is air conditioning mode, when switching refrigeration mode, indoor heat exchanger 14 and cooling assembly are controlled Work, the first electromagnetic steering valve 15 and the second electromagnetic steering valve 16 is controlled to commutate, switching refrigerant flow direction;
If current refrigeration pattern is heat pipe pattern, when switching refrigeration mode, indoor heat exchanger 14 and cooling assembly are controlled, The first electromagnetic steering valve 15 and the second electromagnetic steering valve 16 is controlled to commutate, switching refrigerant flow direction.
Above content is detailed description made for the present invention in conjunction with specific embodiments, it is impossible to assert that the present invention is specific real Apply and be only limitted to these explanations.For those skilled in the art, before present inventive concept is not departed from Put, some simple deduction or replace can also be made, should all be considered as belonging to the scope of protection of the invention.

Claims (7)

1. a kind of refrigeration system of huge discharge automobile air conditioner compressor, including indoor set (10) and outdoor unit (20), its feature exist In:The indoor set (10) includes compressor (11), main cooling assembly (12), secondary cooling assembly (13) and indoor heat exchanger (14), the outdoor unit (20) includes outdoor heat exchanger (21), the main cooling assembly (12), the secondary cooling assembly (13) with And the connecting tube being connected (30) is provided between the indoor heat exchanger (14) and the outdoor heat exchanger (21), and the company The first stop valve (31) and the second stop valve (32) are provided with adapter (30);
The exhaust outlet of the compressor (11) is connected with the outdoor heat exchanger (21) one end, the outdoor heat exchanger (21) it is another One end is connected with one end of the main cooling assembly (12), the secondary cooling assembly (13) and the indoor heat exchanger (14), The other end of the main cooling assembly (12), the secondary cooling assembly (13) and the indoor heat exchanger (14) and the compression The gas returning port of machine (11) is connected, and the loop formed under air conditioning mode and the loop under heat pipe;
Cycle refrigeration system, and the main cooling assembly (12), the secondary cooling assembly are additionally provided with the indoor set (10) (13) it is provided in the cycle refrigeration system.
A kind of 2. refrigeration system of huge discharge automobile air conditioner compressor according to claim 1, it is characterised in that:The air-conditioning Pattern includes air conditioner refrigerating pattern and air conditioner coolant take-back model, and the heat pipe pattern includes heat-pipe refrigerating pattern and heat pipe refrigerant Take-back model.
A kind of 3. refrigeration system of huge discharge automobile air conditioner compressor according to claim 1, it is characterised in that:The interior Machine (10) also includes:
First electromagnetic steering valve (15), the first electromagnetic steering valve (15) are arranged on the main cooling assembly (12), the pair Between cooling assembly (13) and the indoor heat exchanger (14) and the compressor (11) gas returning port;
Second electromagnetic steering valve (16), the second electromagnetic steering valve (16) are arranged on the main cooling assembly (12), the pair Between cooling assembly (13) and the indoor heat exchanger (14) and the outdoor heat exchanger (21);
3rd electromagnetic steering valve (17), the 3rd electromagnetic steering valve (17) are arranged on the first electromagnetic steering valve (15), institute State between outdoor heat exchanger (21) and the compressor (11);
When cycle refrigeration system switches refrigeration mode, pass through the first electromagnetic steering valve (15), second electromagnetic steering Valve (16) switching refrigerant flow direction.
A kind of 4. refrigeration system of huge discharge automobile air conditioner compressor according to claim 3, it is characterised in that:The main system First pressure controller (18), the secondary cooling assembly are provided between cold component (12) and the first electromagnetic steering valve (15) (13) it is provided with second pressure controller (19) between the second electromagnetic steering valve (16).
A kind of 5. refrigeration system of huge discharge automobile air conditioner compressor according to claim 1, it is characterised in that:Around described Compressor (11) is additionally provided with flaggy (40), and temperature sensor is provided between the flaggy (40) and the compressor (11) And pressure sensor (42) (41).
A kind of 6. refrigeration system of huge discharge automobile air conditioner compressor according to claim 1, it is characterised in that:The circulation Refrigeration system includes temperature-compensating room (50) and cool room (60), the main cooling assembly (12) and the secondary cooling assembly (13) It is provided in the temperature-compensating room (50), the compressor (11) is provided in the cool room (60), the temperature Compensated chamber (50) one end is provided with airflow inlet (51), and temperature sense medium (54) is additionally provided with the temperature-compensating room (50) The air inducing unit (55) of ringing is carried out with guiding air-flow, is set between the temperature-compensating room (50) and the cool room (60) It is equipped with and transmits communicating pipe (70).
A kind of 7. refrigeration system of huge discharge automobile air conditioner compressor according to claim 6, it is characterised in that:The air-flow Kinetic pump (52) is provided with import (51), unloading valve (53), the main cooling assembly are provided with the kinetic pump (52) (12) it is additionally provided between the secondary cooling assembly (13) and dries condensation fiber tube (56).
CN201720725259.1U 2017-06-21 2017-06-21 A kind of refrigeration system of huge discharge automobile air conditioner compressor Expired - Fee Related CN207072233U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720725259.1U CN207072233U (en) 2017-06-21 2017-06-21 A kind of refrigeration system of huge discharge automobile air conditioner compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720725259.1U CN207072233U (en) 2017-06-21 2017-06-21 A kind of refrigeration system of huge discharge automobile air conditioner compressor

Publications (1)

Publication Number Publication Date
CN207072233U true CN207072233U (en) 2018-03-06

Family

ID=61512979

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720725259.1U Expired - Fee Related CN207072233U (en) 2017-06-21 2017-06-21 A kind of refrigeration system of huge discharge automobile air conditioner compressor

Country Status (1)

Country Link
CN (1) CN207072233U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111872646A (en) * 2020-08-06 2020-11-03 滁州市汊河之星高新技术研发有限公司 Method for processing stop ring of vortex type automobile air conditioner compressor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111872646A (en) * 2020-08-06 2020-11-03 滁州市汊河之星高新技术研发有限公司 Method for processing stop ring of vortex type automobile air conditioner compressor

Similar Documents

Publication Publication Date Title
CN102121741B (en) Multi-connection air conditioning unit and control method thereof during small-load refrigeration running
CN104101127B (en) Multi-online air-conditioning system and defrosting control method thereof
CN105196832A (en) Electric automobile waste heat recovery heat pump type comprehensive heat management system automatically adjusted in filling amount
CN102777981A (en) Energy-saving air-conditioning system used for communication base station and capable of supplying air in object-oriented mode and running method thereof
CN106394184B (en) CO (carbon monoxide)2Heat pump air conditioning system and control method thereof
CN106931676A (en) Air-conditioning system and its defrosting control method
CN105650810A (en) Control method for air conditioner, cooling air conditioner and cooling and heating air conditioner
CN102297494A (en) Method for refrigeration and stably operation at low load of vacuum reducer valve and system thereof
CN203385088U (en) Energy-saving yearly refrigeration air conditioner
CN210425671U (en) Ultralow-temperature perennial refrigeration type air-cooled air conditioning unit
CN110319513A (en) A kind of fresh air conditioner system
CN207072233U (en) A kind of refrigeration system of huge discharge automobile air conditioner compressor
CN205059127U (en) Charge automatically regulated's electric automobile waste heat recovery heat pump -type synthesizes thermal management system
CN202264784U (en) Novel high-speed train air-conditioning system with frequency-variable fans
CN206695426U (en) Air-conditioning system
CN206771795U (en) Air-conditioning system
CN104791922A (en) Integrated air conditioner and control method for high temperature refrigeration
CN105546890B (en) Air conditioner energy output adjusting method and air-conditioning
CN209197191U (en) It is a kind of with the refrigeration system freely cooled down
CN106766410A (en) A kind of fluorine pump kind of refrigeration cycle assignment of traffic unit
CN202630536U (en) Novel cold and hot water unit of air-cooled screw heat pump
CN206556311U (en) A kind of fluorine pump kind of refrigeration cycle assignment of traffic unit
CN208901678U (en) A kind of heat pump system
CN2716732Y (en) Air-cooling screw heat pump water cooling and heating machine set
CN111473542A (en) Cold and heat adjusting system and method suitable for single air source heat pump unit

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20180306

Termination date: 20190621

CF01 Termination of patent right due to non-payment of annual fee