CN209042803U - air conditioning system - Google Patents

air conditioning system Download PDF

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Publication number
CN209042803U
CN209042803U CN201821910189.8U CN201821910189U CN209042803U CN 209042803 U CN209042803 U CN 209042803U CN 201821910189 U CN201821910189 U CN 201821910189U CN 209042803 U CN209042803 U CN 209042803U
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China
Prior art keywords
heat
compressor
refrigerant
air
exchanging fluid
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CN201821910189.8U
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Chinese (zh)
Inventor
孙思
王传华
代园
张恩泉
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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Priority to CN201821910189.8U priority Critical patent/CN209042803U/en
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Abstract

The utility model relates to an air conditioning system, include the refrigeration heating system who is formed by compressor, condenser, evaporimeter and cross valve intercommunication, the intercommunication has heat transfer device between the refrigerant entry of compressor and cross valve for the refrigerant to getting into the compressor carries out the heat transfer again, and heat transfer device's heat transfer ability can be adjusted according to the superheat degree preset value of breathing in of compressor, makes the superheat degree of breathing in when refrigerant among the refrigeration heating system gets into the compressor reach the superheat degree preset value of breathing in. Thereby avoiding the condition that the compressor sucks air and carries liquid, and ensuring the integral operation stability of the air-conditioning system.

Description

Air-conditioning system
Technical field
The utility model relates to air-conditioning technical fields, more particularly to a kind of air-conditioning system.
Background technique
Air-conditioning system generally uses power source of the compressor as system operation in refrigeration and heating operations, such as in wind In cold cold and hot water supply system, commonly using the core drive that screw compressor recycles in systems as refrigerant, compressor it is reliable Property directly affects the reliability of air-conditioning system.The operation of compressor is very sensitive to absorbing gas belt liquid, Air Conditioning Cycle Compressor band liquid work in the process will cause larger damage to compressor, to seriously affect the reliability of air-conditioning system.
Utility model content
Based on this, it is necessary to provide a kind of air-conditioning system, compressor air suction occur to avoid during system circulation The problem of band liquid, influence the operational reliability of system.
A kind of air-conditioning system, including being connected to the cooling and warming system formed by compressor, condenser, evaporator and four-way valve System, is communicated with heat-exchanger rig between the refrigerant inlet and the four-way valve of the compressor, for the entrance compressor Refrigerant exchanged heat again, the exchange capability of heat of the heat-exchanger rig can be adjusted according to the suction superheat predetermined value of the compressor Section, so that the suction superheat when refrigerant in the refrigerating and heating systems enters the compressor reaches the suction superheat Predetermined value.
Above scheme provides a kind of air-conditioning system, and compressor is to the refrigerant in the refrigerating and heating systems in use process Circulation provides power, and the refrigerant no matter carried out after temperature adjusting under refrigeration or heating mode to outside air or water is recycling Into before compressor, can be exchanged heat again in the heat-exchanger rig.Such as outside water is carried out in wind cooling cold and hot water system Refrigerant after refrigeration or heating enters compressor after being exchanged heat again in the heat-exchanger rig.By adjusting the heat-exchanger rig Exchange capability of heat so that by the heat-exchanger rig refrigerant enter the compressor when suction superheat reach suction superheat Spend predetermined value.To avoid the compressor from the case where absorbing gas belt liquid occur, the operation stability of air-conditioning system entirety is ensured.
The heat-exchanger rig includes heat exchange equipment and regulating part, the heat exchange equipment connection in one of the embodiments, Between the refrigerant inlet and the four-way valve of the compressor, the regulating part is used to adjust the heat-energy transducer of the heat exchange equipment Power.
The heat exchange equipment includes system refrigerant inlet, system refrigerant exit and heat exchange stream in one of the embodiments, Body entrance, the system refrigerant inlet are connected to the four-way valve, and the heat exchange equipment passes through the system refrigerant exit and institute The refrigerant inlet connection of compressor is stated, the regulating part, which can be adjusted, enters the heat exchange equipment by the heat exchanging fluid entrance In heat exchanging fluid amount, the heat exchanging fluid be used for enter the heat exchange equipment in refrigerant exchange heat.
The air-conditioning system further includes heat exchanging fluid input pipe and heat exchanging fluid efferent duct in one of the embodiments, The heat exchange equipment further includes heat exchanging fluid outlet, and heat exchanging fluid input pipe connection is described in the heat exchanging fluid entrance The connection of heat exchanging fluid efferent duct is exported in the heat exchanging fluid, and the regulating part is to be arranged on the heat exchanging fluid input pipe Ratio adjusting valve.
The heat exchanging fluid input pipe is equipped with drain valve in one of the embodiments, and the drain valve is located at described Between regulating part and the heat exchanging fluid entrance.
The air-conditioning system further includes the equal water inlet pipe being connected to the evaporator and water outlet in one of the embodiments, Pipe, the water inlet pipe, which is used to importing outside water into the evaporator, to be freezed or is heated, and the outlet pipe is used for will be described Evaporator refrigeration or the water of heating are delivered to user, and the heat exchanging fluid input pipe is connected to the water inlet pipe, the heat exchange stream Body efferent duct is connected to the outlet pipe.
The heat exchange equipment has gas-liquid separating function in one of the embodiments, can be to entrance refrigerant therein Carry out gas-liquid separation.
The air-conditioning system further includes detection components in one of the embodiments, for obtaining refrigerant into the pressure Suction superheat when contracting machine, the detection components and the regulating part are electrically connected, when the air-breathing of detection components detection When the degree of superheat is greater than compressor air suction degree of superheat predetermined value, the regulating part turns the exchange capability of heat of the heat exchange equipment down, when When the suction superheat of detection components detection is less than compressor air suction degree of superheat predetermined value, the regulating part is by the heat exchange The exchange capability of heat of equipment tunes up.
The detection components include temperature sensing package and pressure sensor in one of the embodiments, and the temperature sensing package is used for The suction temperature of the compressor is detected, the pressure sensor is used to detect the pressure of inspiration(Pi) of the compressor.
The first refrigerant delivery pipe is equipped between the condenser and the evaporator in one of the embodiments, it is described First refrigerant delivery pipe is equipped with throttle valve, for adjusting the coolant quantity recycled in the refrigerating and heating systems.
The throttle valve includes electric expansion valve or/and capillary in one of the embodiments,.
Detailed description of the invention
Fig. 1 is air-conditioning system schematic diagram described in the present embodiment.
Description of symbols:
10, air-conditioning system, 11, refrigerating and heating systems, 111, compressor, 112, condenser, 113, evaporator, 114, four-way Valve, 12, heat-exchanger rig, 121, heat exchange equipment, 1211, system refrigerant inlet, 1212, system refrigerant exit, 1213, heat exchanging fluid Entrance, 1214, heat exchanging fluid outlet, 122, regulating part, the 13, first refrigerant delivery pipe, 131, throttle valve, 14, temperature sensing package, 15, Pressure sensor, 16, heat exchanging fluid input pipe, 161, drain valve, 17, heat exchanging fluid efferent duct, 18, water inlet pipe, 19, water outlet Pipe.
Specific embodiment
As shown in Figure 1, providing a kind of air-conditioning system 10 in one embodiment, including by compressor 111, condenser 112, evaporator 113 be connected to four-way valve 114 formed refrigerating and heating systems 11, the compressor 111 refrigerant inlet with It is communicated with heat-exchanger rig 12 between the four-way valve 114, for being exchanged heat again to the refrigerant for entering the compressor 111, institute The exchange capability of heat for stating heat-exchanger rig 12 can be adjusted according to the suction superheat predetermined value of the compressor 111, so that the system Suction superheat when refrigerant in cold heating system 11 enters the compressor 111 reaches the suction superheat predetermined value.
Above scheme provides a kind of air-conditioning system 10, and compressor 111 is to the refrigerating and heating systems 11 in use process In refrigerant circulation power is provided, it is cold after no matter carrying out temperature adjusting to outside air or water under refrigeration or heating mode Matchmaker can be exchanged heat again before being recycled into compressor 111 in the heat-exchanger rig 12.Such as in wind cooling cold and hot water system Refrigerant after outside water is freezed or heated enters compressor 111 after being exchanged heat again in the heat-exchanger rig 12.It is logical The exchange capability of heat of the heat-exchanger rig 12 is overregulated, so that the refrigerant by the heat-exchanger rig 12 is entering the compressor Suction superheat reaches suction superheat predetermined value when 111.To avoid the compressor 111 from the case where absorbing gas belt liquid occur, Ensure the whole operation stability of air-conditioning system 10.
Especially for screw compressor, if being unable to accurately control suction superheat, will occur band liquid feelings in screw compressor Condition influences the relative motion between orbiter and fixed scroll, cause screw compressor cannot proceed normally air-breathing, compression and Exhaust process finally causes entire air-conditioning system can not work normally.
Specifically, in one embodiment, as shown in Figure 1, the heat-exchanger rig 12 includes heat exchange equipment 121 and regulating part 122, the connection of heat exchange equipment 121 is between the refrigerant inlet and the four-way valve 114 of the compressor 111, the adjusting Part 122 is used to adjust the exchange capability of heat of the heat exchange equipment 121.
In the i.e. described refrigerating and heating systems 11, refrigerant enter compressor 111 before, be introduced into the heat exchange equipment 121 into Row heat exchange, and the control for the degree that exchanges heat then is carried out by the regulating part 122.When the refrigerant suction superheat for entering compressor 111 When greater than suction superheat predetermined value, the regulating part 122 is adjusted, so that the exchange capability of heat of the heat exchange equipment 121 becomes smaller, from And make heat exchange degree decline of the refrigerant in heat exchange equipment 121, so that into the refrigerant suction superheat of compressor 111 Reach suction superheat predetermined value;Conversely, when the refrigerant suction superheat into compressor 111 is less than suction superheat predetermined value When, the regulating part 122 is adjusted, so that the exchange capability of heat of the heat exchange equipment 121 becomes larger, so that refrigerant is in heat exchange equipment Heat exchange degree in 121 increases, so as to reach suction superheat predetermined into the refrigerant suction superheat of compressor 111 Value;If the refrigerant suction superheat into compressor 111 is equal with suction superheat predetermined value, the regulating part 122 is kept State at this time.Therefore after the air-conditioning system 10 enters stable state, the regulating part 122 is through tune after a period of time Section, so that the exchange capability of heat of the heat exchange equipment 121 meets the suction superheat and suction superheat for entering the refrigerant of compressor 111 After degree predetermined value is equal, state is constant this moment for the holding of regulating part 122.Later only when wave occurs in the air-conditioning system 10 Dynamic, when the suction superheat into the refrigerant of the compressor 111 being caused to change, the regulating part 122 just can be according to preceding State procedure regulation size.So that it is guaranteed that the case where being not in absorbing gas belt liquid in the compressor 111 of the air-conditioning system 10.
Optionally, the heat-exchanger rig 12 be also possible to include heat exchange equipment 121 and bypass line structure so that from institute The refrigerant for stating four-way valve 114 into 111 refrigerant inlet of compressor is broken down into two paths, the refrigerant warp in a paths It crosses and enters compressor 111 after the heat exchange equipment 121 exchanges heat again, another path is then the bypass line, the bypass pipe Road directly will be delivered to 111 refrigerant inlet of compressor by the refrigerant of the four-way valve 114, so by two paths of control The accounting of refrigerant then can control the suction superheat of the refrigerant into compressor 111.
Change the exchange capability of heat of the heat exchange equipment 121 in aforementioned schemes by the adjustment process of the regulating part 122, has Body, the regulating part 122 can be connect by refrigerant in the adjusting heat exchange equipment 121 with heat transferring medium in heat exchange equipment 121 The area or heat transfer rate of touching, to change the exchange capability of heat of the heat exchange equipment 121;When the heat exchange equipment 121 passes through stream It exchanges heat between body and refrigerant, when achieving the effect that exchange heat again, the regulating part 122 can enter the heat exchange equipment by adjusting The amount of 121 fluids achievees the purpose that change and changes equipment exchange capability of heat.
Such as in one embodiment, as shown in Figure 1, the heat exchange equipment 121 includes system refrigerant inlet 1211, system Refrigerant exit 1212 and heat exchanging fluid entrance 1213, the system refrigerant inlet 1211 is connected to the four-way valve 114, described to change Hot equipment 121 is connected to by the system refrigerant exit 1212 with the refrigerant inlet of the compressor 111, the regulating part 122 The amount for entering the heat exchanging fluid in the heat exchange equipment 121 by the heat exchanging fluid entrance 1213, the heat exchange can be adjusted Fluid is used to exchange heat with the refrigerant entered in the heat exchange equipment 121.
Moreover, specifically, the heat exchanging fluid can be liquid, it is also possible to gas, it, can for wind cooling cold and hot water system To use water as heat exchanging fluid, resource around is made full use of, on the other hand one side save the cost simplifies structure.Specifically, The water section inputted in evaporator 113 in wind cooling cold and hot water system can be introduced into the heat exchange equipment 121, the heat exchange equipment It is conveyed to user in the outlet pipe by wind cooling cold and hot water system with the water after refrigerant heat exchange in 121, does not need separately to set heat exchange stream The storage facilities of body.And the water to circulate in heat exchange equipment 121 is smaller relative to the water of cold (heat) water of supply user, because It, will not be in outlet pipe when water in this heat exchange equipment 121 by heat exchange is discharged in the outlet pipe in wind cooling cold and hot water system The temperature of water produces bigger effect, that is, will not influence the experience sense of user by.
It specifically, can be by further between 111 refrigerant inlet of the system refrigerant exit 1212 and the compressor Second refrigerant delivery pipe is set, realizes refrigerant from heat exchange equipment 121 to the transmission compressor 111.The similarly four-way valve Refrigerant can also be realized from four-way valve by the way that third refrigerant delivery pipe is further arranged between 114 and the heat exchange equipment 121 114 arrive the transmission between heat exchange equipment 121.
Specifically, in one embodiment, as shown in Figure 1, the air-conditioning system 10 further includes heat exchanging fluid input pipe 16 With heat exchanging fluid efferent duct 17, the heat exchange equipment 121 further includes heat exchanging fluid outlet 1214, the heat exchanging fluid input pipe 16 Connection exports 1214 in the heat exchanging fluid in the heat exchanging fluid entrance 1213, the connection of heat exchanging fluid efferent duct 17, institute Stating regulating part 122 is the ratio adjusting valve being arranged on the heat exchanging fluid input pipe 16.
By adjusting the size of the ratio adjusting valve, the flow of the heat exchanging fluid input pipe 16 is controlled, to adjust The exchange capability of heat of the heat exchange equipment 121, the fluid by heat exchange then pass through the heat exchanging fluid efferent duct 1717 and export.
Further, in one embodiment, as shown in Figure 1, the heat exchanging fluid input pipe 16 is equipped with drain valve 161, the drain valve 161 is between the regulating part 122 and the heat exchanging fluid entrance 1213.The drain valve 161 Setting so that, can will be extra by opening the drain valve 161 when the fluid deposition in the heat exchange equipment 121 is more Fluid discharge.Such as when 10 long-time of air-conditioning system is stopped using, the drain valve 161 is opened, by heat exchange equipment Fluid in 121 drains, in order to store.
The refrigerating and heating systems 11 for including in air-conditioning system 10 described in aforementioned schemes, which can be, carries out heating system to air It is cold, it is also possible to carry out heating refrigeration to water.Such as it can then pass through the refrigerating and heating systems 11 in wind cooling cold and hot water system Water is added or is freezed, reaches the sets requirement of user, with for users to use.Specifically, in wind cooling cold and hot water system The evaporator 113 can use shell and tube evaporator, to facilitate the cooling and warming process realized to water.
For example, in one embodiment, as shown in Figure 1, the air-conditioning system 10 further includes equal and the evaporator 113 connects Logical water inlet pipe 18 and outlet pipe 19, the water inlet pipe 18, which is used to importing outside water into the evaporator 113, to be freezed or is made Heat, the outlet pipe 19 are used to the water for being freezed or being heated by the evaporator 113 being delivered to user, i.e., the described air-conditioning system 10 For wind cooling cold and hot water system, the heat exchanging fluid input pipe 16 is connected to the water inlet pipe 18, the heat exchanging fluid efferent duct 17 It is connected to the outlet pipe 19.
The water resource in the wind cooling cold and hot water system is made full use of, the water section in water inlet pipe 18 is directly introduced into ring and is set It is standby, it will be discharged into outlet pipe 19 by the water of heat exchange, so that whole system is more succinct.It specifically, can be in the water inlet pipe Water pump is arranged in input terminal, provides power for the circulation of water system.
Further, in one embodiment, the heat exchange equipment 121 have gas-liquid separating function, can to enter its In refrigerant carry out gas-liquid separation.
By further increasing gas-liquid separating function in the heat exchange equipment 121, so that by the heat exchange equipment 121 Refrigerant not only temperature reaches corresponding requirements, while the degree of gas-liquid separation also meets the requirement of compressor 111, further Improve the use reliability of compressor 111.
The heat transfer process of heat-exchanger rig 12 described in aforementioned schemes finally needs to ensure the air-breathing that refrigerant enters compressor 111 The degree of superheat reaches corresponding requirements, and 12 exchange capability of heat of the heat-exchanger rig is when entering the compressor 111 according to the refrigerant Suction superheat and adjust, i.e., the adjusting of described 12 exchange capability of heat of heat-exchanger rig is according to real-time suction superheat and air-breathing Size relation between degree of superheat predetermined value is adjusted.
Specifically, in one embodiment, as shown in Figure 1, detection components are further arranged in the air-conditioning system 10, For obtaining suction superheat when refrigerant enters the compressor 111, the detection components electrically connect with the regulating part 122 It connects, when the suction superheat of detection components detection is greater than 111 suction superheat predetermined value of compressor, the regulating part 122 turn the exchange capability of heat of the heat exchange equipment 121 down, when the suction superheat of detection components detection is less than compressor When 111 suction superheat predetermined value, the regulating part 122 tunes up the exchange capability of heat of the heat exchange equipment 121.
Specifically, when the regulating part 122 is the ratio adjusting valve, the ratio adjusting valve is according to the detection group Part detection refrigerant enter the compressor 111 when suction superheat and adjust openings of sizes, control corresponding heat exchanging fluid The circulation of input pipe 16 enables the exchange capability of heat of heat exchange equipment 121 to ensure air-breathing mistake when entering the compressor 111 Temperature is equal with suction superheat predetermined value.
Specifically, in one embodiment, as shown in Figure 1, the detection components include temperature sensing package 14 and pressure sensor 15, the temperature sensing package 14 is used to detect the suction temperature of the compressor 111, and the pressure sensor 15 is for detecting the pressure The pressure of inspiration(Pi) of contracting machine 111.The pressure value detected by the pressure sensor 15 obtains the saturation temperature under corresponding pressure, The difference between temperature and the saturation temperature that the temperature sensing package 14 detects then belongs to real-time suction superheat.According to real-time Suction superheat and suction superheat predetermined value between big minor adjustment described in regulating part 122.
Further, in one embodiment, as shown in Figure 1, being set between the condenser 112 and the evaporator 113 There is the first refrigerant delivery pipe 13, the first refrigerant delivery pipe 13 is equipped with throttle valve 131, for adjusting the cooling and warming system The coolant quantity recycled in system 11.The internal circulating load of refrigerant first passes around the control of the throttle valve 131 in the refrigerating and heating systems 11 System, then passes through the secondary control of the heat-exchanger rig 12, and ultimate guarantee enters the refrigerant suction superheat of the compressor 111 It meets the requirements, is not in the reliability of absorbing gas belt liquid situation in raising whole system guarantee compressor 111.Moreover, the section The setting of stream valve 131 also can control the coolant quantity into the evaporator 113, ensure the internal circulating load symbol of refrigerant in the system It closes and requires.
Specifically, in one embodiment, the throttle valve 131 includes electric expansion valve or/and capillary.And it is described Electric expansion valve can enter the suction of the compressor 111 according to the degree of superheat or degree of supercooling or refrigerant of the evaporator 113 Gas degree of superheat parameter value is adjusted, the regulation performance of overall improved system.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited In contradiction, all should be considered as described in this specification.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed, But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to The protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.

Claims (11)

1. a kind of air-conditioning system, which is characterized in that including being connected to the system formed by compressor, condenser, evaporator and four-way valve Cold heating system is communicated with heat-exchanger rig between the refrigerant inlet and the four-way valve of the compressor, for enter institute The refrigerant for stating compressor is exchanged heat again, and the exchange capability of heat of the heat-exchanger rig can be pre- according to the suction superheat of the compressor Definite value and adjust so that suction superheat when refrigerant in the refrigerating and heating systems enters the compressor reaches the suction Gas degree of superheat predetermined value.
2. air-conditioning system according to claim 1, which is characterized in that the heat-exchanger rig includes heat exchange equipment and adjusting Part, the heat exchange equipment connection is between the refrigerant inlet and the four-way valve of the compressor, and the regulating part is for adjusting The exchange capability of heat of the heat exchange equipment.
3. air-conditioning system according to claim 2, which is characterized in that the heat exchange equipment includes system refrigerant inlet, is System refrigerant exit and heat exchanging fluid entrance, the system refrigerant inlet are connected to the four-way valve, and the heat exchange equipment passes through institute It states system refrigerant exit to be connected to the refrigerant inlet of the compressor, the regulating part can be adjusted to be entered by the heat exchanging fluid Mouthful enter the heat exchange equipment in heat exchanging fluid amount, the heat exchanging fluid be used for and enter the heat exchange equipment in refrigerant It exchanges heat.
4. air-conditioning system according to claim 3, which is characterized in that further include that heat exchanging fluid input pipe and heat exchanging fluid are defeated Outlet pipe, the heat exchange equipment further include heat exchanging fluid outlet, and the heat exchanging fluid input pipe is connected in the heat exchanging fluid entrance, The heat exchanging fluid efferent duct connection is exported in the heat exchanging fluid, and the regulating part is to be arranged in the heat exchanging fluid input pipe On ratio adjusting valve.
5. air-conditioning system according to claim 4, which is characterized in that the heat exchanging fluid input pipe is equipped with drain valve, The drain valve is between the regulating part and the heat exchanging fluid entrance.
6. air-conditioning system according to claim 4 or 5, which is characterized in that further include it is equal be connected to the evaporator into Water pipe and outlet pipe, the water inlet pipe, which is used to importing outside water into the evaporator, to be freezed or is heated, and the water outlet is effective In will be delivered to user by the water of the evaporator refrigeration or heating, the heat exchanging fluid input pipe is connected to the water inlet pipe, The heat exchanging fluid efferent duct is connected to the outlet pipe.
7. air-conditioning system according to any one of claims 2 to 5, which is characterized in that the heat exchange equipment is with gas-liquid point From function, gas-liquid separation can be carried out to refrigerant therein is entered.
8. air-conditioning system according to any one of claims 2 to 5, which is characterized in that further include detection components, for obtaining Refrigerant enters the suction superheat when compressor, and the detection components and the regulating part are electrically connected, when the detection When the suction superheat of component detection is greater than compressor air suction degree of superheat predetermined value, the regulating part is changed the heat exchange equipment Thermal energy power is turned down, when the suction superheat of detection components detection is less than compressor air suction degree of superheat predetermined value, the tune Section part tunes up the exchange capability of heat of the heat exchange equipment.
9. air-conditioning system according to claim 8, which is characterized in that the detection components include temperature sensing package and pressure sensing Device, the temperature sensing package are used to detect the suction temperature of the compressor, and the pressure sensor is for detecting the compressor Pressure of inspiration(Pi).
10. air-conditioning system according to any one of claims 1 to 5, which is characterized in that the condenser and the evaporator Between be equipped with the first refrigerant delivery pipe, the first refrigerant delivery pipe be equipped with throttle valve, for adjusting the cooling and warming system The coolant quantity recycled in system.
11. air-conditioning system according to claim 10, which is characterized in that the throttle valve include electric expansion valve or/and Capillary.
CN201821910189.8U 2018-11-19 2018-11-19 air conditioning system Active CN209042803U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821910189.8U CN209042803U (en) 2018-11-19 2018-11-19 air conditioning system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821910189.8U CN209042803U (en) 2018-11-19 2018-11-19 air conditioning system

Publications (1)

Publication Number Publication Date
CN209042803U true CN209042803U (en) 2019-06-28

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Application Number Title Priority Date Filing Date
CN201821910189.8U Active CN209042803U (en) 2018-11-19 2018-11-19 air conditioning system

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109237834A (en) * 2018-11-19 2019-01-18 珠海格力电器股份有限公司 Air conditioning system and control method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109237834A (en) * 2018-11-19 2019-01-18 珠海格力电器股份有限公司 Air conditioning system and control method thereof

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