CN107843023A - A kind of refrigerating machine device - Google Patents
A kind of refrigerating machine device Download PDFInfo
- Publication number
- CN107843023A CN107843023A CN201710967336.9A CN201710967336A CN107843023A CN 107843023 A CN107843023 A CN 107843023A CN 201710967336 A CN201710967336 A CN 201710967336A CN 107843023 A CN107843023 A CN 107843023A
- Authority
- CN
- China
- Prior art keywords
- expansion valve
- pressure
- temperature sensor
- compressor
- controller
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B13/00—Compression machines, plants or systems, with reversible cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/40—Fluid line arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/022—Compressor control arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/19—Pressures
- F25B2700/193—Pressures of the compressor
Abstract
The invention discloses a kind of refrigerating machine device,The device includes compressor,Four-way valve,Condenser,First expansion valve,Bypass expansion valve,Second expansion valve,Evaporator,First gas-liquid separator,Second gas-liquid separator and controller,Controller and the first temperature sensor and first pressure sensor,Second temperature sensor and second pressure sensor,Three-temperature sensor,4th temperature sensor,3rd pressure sensor,First expansion valve,Bypass expansion valve and the second expansion valve and compressor are kept in communication,Controller is according to the first temperature sensor,First pressure sensor,Second temperature sensor,Second pressure sensor,Three-temperature sensor,The detection signal of 4th temperature sensor and the 3rd pressure sensor controls the first expansion valve,Bypass expansion valve and the aperture of the second expansion valve and the running frequency of compressor.
Description
Technical field
The present invention relates to refrigeration technology field, and in particular to a kind of refrigerating machine device.
Background technology
Refrigerating machine device be used for building, structure, plumbing, heating and ventilation, mechanical transmission, electric power electricity according to and oneself
A kind of device that multiple work posts such as dynamic control combine closely, it is the crystallization of multidisciplinary research.With the sustainable growth of national economy,
Refrigerating plant is widely used in everyways such as industry, agricultural, business, science and technology and people's lives, particularly
Food refrigerated and air adjustment, it is directly connected to the industrial production of many departments and the needs of people's lives.
In the prior art, refrigerating machine device needs to control degree of supercooling, such as when causing system old due to long-play
When changing leakage of refrigerant, or when cause refrigerant charge deficiency due to misoperation when mounted, it can cause
Degree of supercooling can not accurately control, and then cause excessively to throttle.Therefore refrigerating machine device of the prior art, which exists, is difficult to reality
Now the problem of accurate control.
In order to make up the deficiency of refrigerant, develop refrigerant is injected in a kind of device to refrigerating machine in the prior art
Technology, the refrigerant of injection add the total amount of the refrigerant circulated in system, therefore improve the refrigeration of refrigerating machine device
Ability.But largely injection refrigerant can cause compressor liquid hammer accident, therefore a small amount of refrigeration can only be injected in practical operation
Agent, does not reach the amount for making up the refrigerant required for lack of refrigerant much, therefore to the refrigerating capacity of refrigerating machine device
Improve very limited.
The content of the invention
In order to overcome problems of the prior art, the present invention provides a kind of refrigerating machine device, refrigerating machine dress
Put by optimizing apparatus structure and control method, improve the refrigerating capacity of refrigerating machine device.
To achieve the above object, refrigerating machine device of the present invention includes compressor, four-way valve, condenser, first
Expansion valve, bypass expansion valve, the second expansion valve, evaporator, the first gas-liquid separator, the second gas-liquid separator and controller, institute
Pass through between compressor, four-way valve, condenser, the first expansion valve, the second expansion valve, evaporator and the first gas-liquid separator stated
Refrigerant tubing connects into circulation loop, and refrigerant is filled with circulation loop, and the entrance of described bypass expansion valve is connected to
On refrigerant tubing between first expansion valve and the second expansion valve, the outlet of expansion valve and entering for the second gas-liquid separator are bypassed
Mouth connection, the outlet of the second gas-liquid separator and the discharge chambe of compressor connect；The first temperature is provided with the exhaust outlet of compressor
Sensor and first pressure sensor are spent, second temperature sensor and second pressure sensing are provided with the air entry of compressor
Device, three-temperature sensor is provided with the refrigerant tubing between condenser and the first expansion valve；The side of condenser is set
There is detection to enter condenser and the 4th temperature sensor of the temperature of the air to be exchanged heat with condenser；Bypass expansion valve and first swollen
The 3rd pressure sensor is provided with refrigerant tubing between swollen valve；Described controller and the first temperature sensor and first
Pressure sensor, second temperature sensor and second pressure sensor, three-temperature sensor, the 4th temperature sensor, the 3rd
Pressure sensor, the first expansion valve, bypass expansion valve and the second expansion valve and compressor are kept in communication, described controller root
According to the first temperature sensor, first pressure sensor, second temperature sensor, second pressure sensor, three-temperature sensor,
The detection signal of 4th temperature sensor and the 3rd pressure sensor controls the first expansion valve, bypass expansion valve and the second expansion valve
Aperture and compressor running frequency.
Described refrigerant is R407C, R410A, R404A, R22, R134a, R32, R125 or R143a.
Described controller and the first temperature sensor and first pressure sensor, second temperature sensor and second pressure
Sensor, three-temperature sensor, the 4th temperature sensor, the 3rd pressure sensor, the first expansion valve, bypass expansion valve and the
Kept in communication between two expansion valves and compressor by wire signal or wireless signal.
The 4th described temperature sensor sends the temperature of the air detected to controller, and controller judges the 4th temperature
Whether the temperature for the air that degree sensor detects is equal to preset value, if the temperature for the air that the 4th temperature sensor detects
Less than the running frequency rise of preset value, then controller control compressor；If the air that the 4th temperature sensor detects
Temperature is higher than preset value, then the running frequency of controller control compressor reduces.
If the running frequency of compressor reaches maximum, first pressure sensor sends the pressure value of detection to control
Device, controller judge whether the pressure value of first pressure sensor detection reaches pressure corresponding with target condensation temperature, if
The pressure value of first pressure sensor detection is not reaching to pressure corresponding with target condensation temperature, the expansion of controller control first
Valve changes aperture so that the pressure at expulsion of compressor is equal to pressure corresponding with target condensation temperature.
When the pressure value of first pressure sensor detection is equal to or more than pressure corresponding with target condensation temperature,
Controller controls the first expansion valve to change aperture so that the degree of supercooling of the refrigerant in the exit of condenser reaches predetermined value.
3rd pressure sensor sends the pressure value of detection to controller, and controller judges that the 3rd pressure sensor detects
Pressure value whether be equal to preset value, if the 3rd pressure sensor detection pressure value be less than preset value, control
Device control processed reduces the aperture of the second expansion valve, if the pressure value of the 3rd pressure sensor detection is more than preset value,
Controller control increases the aperture of the second expansion valve.
First temperature sensor sends the temperature value of detection to controller, and controller will be examined according to the first temperature sensor
The temperature value of survey judges whether the discharge superheat of compressor is equal to setting value, if the discharge superheat of compressor is less than setting
Value, then controller control reduces the aperture of bypass expansion valve, if the discharge superheat of compressor is higher than setting value, controller
Control increases the aperture of bypass expansion valve.
The invention has the advantages that：Refrigerating machine device of the present invention compared with prior art, optimizes device
Structure and control method, the degree of superheat of the refrigerant sucked by the pressure and compressor of control device high-side heat exchanger,
Improve the refrigerating capacity of refrigerating machine device.
Brief description of the drawings
Fig. 1 is the overall structure diagram of refrigerating machine device of the present invention.
Embodiment
Following examples are used to illustrate the present invention, but are not limited to the scope of the present invention.
As shown in figure 1, refrigerating machine device of the present invention is swollen including compressor 3, four-way valve 4, condenser 6, first
Swollen valve 7, bypass expansion valve 11, the second expansion valve 12, evaporator 9, the first gas-liquid separator 10, the and of the second gas-liquid separator 101
Controller 18, described compressor 3, four-way valve 4, condenser 6, the first expansion valve 7, the second expansion valve 12, evaporator 9 and first
Circulation loop is connected into by refrigerant tubing between gas-liquid separator 10, refrigerant, described side are filled with circulation loop
The entrance of logical expansion valve 11 is connected on the refrigerant tubing between the first expansion valve 7 and the second expansion valve 12, bypasses expansion valve
11 outlet is connected with the entrance of the second gas-liquid separator 101, the outlet of the second gas-liquid separator 101 and the compression of compressor 3
Room connects；The first temperature sensor 43 and first pressure sensor 52, the suction of compressor 3 are provided with the exhaust outlet of compressor 3
It is provided with second temperature sensor 44 and second pressure sensor 51 on gas port, the refrigeration between the expansion valve 7 of condenser 6 and first
Three-temperature sensor 42 is provided with agent pipeline；The side of condenser 6 is provided with detection into condenser and changed with condenser
4th temperature sensor 41 of the temperature of the air of heat；Bypass on the refrigerant tubing between the expansion valve 7 of expansion valve 11 and first
It is provided with the 3rd pressure sensor 53；The described temperature sensor 43 of controller 18 and first and first pressure sensor 52,
Two temperature sensors 44 and second pressure sensor 51, three-temperature sensor 42, the 4th temperature sensor 41, the 3rd pressure pass
Sensor 53, the first expansion valve 7, the bypass expansion valve 12 of expansion valve 11 and second and compressor 3 are kept in communication, described controller
18 according to the first temperature sensor 43, first pressure sensor 52, second temperature sensor 44, second pressure sensor 51,
The detection signal of three-temperature sensor 42, the 4th temperature sensor 41 and the 3rd pressure sensor 53 controls the first expansion valve 7, side
The aperture of the logical expansion valve 12 of expansion valve 11 and second and the running frequency of compressor 3.
Described refrigerant is R407C, R410A, R404A, R22, R134a, R32, R125 or R143a.
The described temperature sensor 43 of controller 18 and first and first pressure sensor 52, second temperature sensor 44 and
Second pressure sensor 51, three-temperature sensor 42, the 4th temperature sensor 41, the expansion of the 3rd pressure sensor 53, first
Keep logical by wire signal or wireless signal between valve 7, the bypass expansion valve 12 of expansion valve 11 and second and compressor 3
News.
The 4th described temperature sensor 41 sends the temperature of the air detected to controller, and controller judges the 4th
Whether the temperature for the air that temperature sensor 41 detects is equal to preset value, if the air that the 4th temperature sensor 41 detects
Temperature be less than preset value, then controller control compressor 3 running frequency rise；If the 4th temperature sensor 41 detects
The temperature of air be higher than preset value, then the running frequency of controller control compressor 3 reduces.
If the running frequency of compressor 3 reaches maximum, first pressure sensor 52 sends the pressure value of detection to
Controller, controller judge whether the pressure value that first pressure sensor 52 detects reaches corresponding with target condensation temperature and press
Power, if the pressure value that first pressure sensor 52 detects is not reaching to pressure corresponding with target condensation temperature, controller control
Make the first expansion valve 7 and change aperture so that the pressure at expulsion of compressor is equal to pressure corresponding with target condensation temperature.
When first pressure sensor 52 detect pressure value be equal to or more than pressure corresponding with target condensation temperature when
Wait, controller controls the first expansion valve 7 to change aperture so that the degree of supercooling of the refrigerant in the exit of condenser 6 reaches predetermined
Value.
3rd pressure sensor 53 sends the pressure value of detection to controller, and controller judges the 3rd pressure sensor 53
Whether the pressure value of detection is equal to preset value, is preset if the pressure value of the 3rd pressure sensor 53 detection is less than
Value, then controller control reduces the aperture of the second expansion valve 12, if the pressure value of the 3rd pressure sensor 53 detection is more than pre-
First setting value, then controller control increase the aperture of the second expansion valve 12.
First temperature sensor 43 sends the temperature value of detection to controller, and controller is according to the first temperature sensor 43
The temperature value of detection judges whether the discharge superheat of compressor is equal to setting value, is set if the discharge superheat of compressor is less than
Definite value, then controller control reduce the aperture of bypass expansion valve 11, if the discharge superheat of compressor is higher than setting value, controlled
Device control processed increases the aperture of bypass expansion valve 11.
Although above with general explanation and specific embodiment, the present invention is described in detail, at this
On the basis of invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Therefore,
These modifications or improvements without departing from theon the basis of the spirit of the present invention, belong to the scope of protection of present invention.
Claims (8)
1. a kind of refrigerating machine device, it is characterised in that the refrigerating machine device includes compressor, four-way valve, condenser, the
One expansion valve, bypass expansion valve, the second expansion valve, evaporator, the first gas-liquid separator, the second gas-liquid separator and controller,
Lead between described compressor, four-way valve, condenser, the first expansion valve, the second expansion valve, evaporator and the first gas-liquid separator
Cross refrigerant tubing and connect into circulation loop, refrigerant, the entrance connection of described bypass expansion valve are filled with circulation loop
On refrigerant tubing between the first expansion valve and the second expansion valve, outlet and the second gas-liquid separator of expansion valve are bypassed
Entrance connects, and the outlet of the second gas-liquid separator and the discharge chambe of compressor connect；First is provided with the exhaust outlet of compressor
Temperature sensor and first pressure sensor, second temperature sensor and second pressure sensing are provided with the air entry of compressor
Device, three-temperature sensor is provided with the refrigerant tubing between condenser and the first expansion valve；The side of condenser is set
There is detection to enter condenser and the 4th temperature sensor of the temperature of the air to be exchanged heat with condenser；Bypass expansion valve and first swollen
The 3rd pressure sensor is provided with refrigerant tubing between swollen valve；Described controller and the first temperature sensor and first
Pressure sensor, second temperature sensor and second pressure sensor, three-temperature sensor, the 4th temperature sensor, the 3rd
Pressure sensor, the first expansion valve, bypass expansion valve and the second expansion valve and compressor are kept in communication, described controller root
According to the first temperature sensor, first pressure sensor, second temperature sensor, second pressure sensor, three-temperature sensor,
The detection signal of 4th temperature sensor and the 3rd pressure sensor controls the first expansion valve, bypass expansion valve and the second expansion valve
Aperture and compressor running frequency.
2. refrigerating machine device as claimed in claim 1, it is characterised in that described refrigerant be R407C, R410A,
R404A, R22, R134a, R32, R125 or R143a.
3. refrigerating machine device as claimed in claim 1 or 2, it is characterised in that described controller and the first TEMP
Device and first pressure sensor, second temperature sensor and second pressure sensor, three-temperature sensor, the 4th TEMP
Pass through wire signal between device, the 3rd pressure sensor, the first expansion valve, bypass expansion valve and the second expansion valve and compressor
Or wireless signal is kept in communication.
4. refrigerating machine device as claimed in claim 3, it is characterised in that described the 4th temperature sensor will detect
The temperature of air sends controller to, and it is default that controller judges whether the temperature for the air that the 4th temperature sensor detects is equal to
Value, if the temperature for the air that the 4th temperature sensor detects is less than preset value, the operation frequency of controller control compressor
Rate raises；If the temperature for the air that the 4th temperature sensor detects is higher than preset value, controller controls the fortune of compressor
Line frequency reduces.
5. refrigerating machine device as claimed in claim 4, it is characterised in that if the running frequency of compressor reaches maximum
Value, first pressure sensor send the pressure value of detection to controller, and controller judges the pressure of first pressure sensor detection
Whether force value reaches pressure corresponding with target condensation temperature, if first pressure sensor detection pressure value be not reaching to
The corresponding pressure of target condensation temperature, controller control the first expansion valve change aperture so that compressor pressure at expulsion be equal to
The corresponding pressure of target condensation temperature.
6. refrigerating machine device as claimed in claim 5, it is characterised in that when pressure value of first pressure sensor detection etc.
When pressure corresponding with target condensation temperature, controller controls the first expansion valve to change aperture so that condenser
The degree of supercooling of refrigerant in exit reach predetermined value.
7. refrigerating machine device as claimed in claim 6, it is characterised in that the 3rd pressure sensor passes the pressure value of detection
Controller is given, controller judges whether the pressure value of the 3rd pressure sensor detection is equal to preset value, if the 3rd pressure
The pressure value of force snesor detection is less than preset value, then controller control reduces the aperture of the second expansion valve, if the 3rd
The pressure value of pressure sensor detection is more than preset value, then controller control increases the aperture of the second expansion valve.
8. refrigerating machine device as claimed in claim 7, it is characterised in that the first temperature sensor passes the temperature value of detection
Give controller, controller according to the first temperature sensor by the temperature value of detection judge compressor discharge superheat whether etc.
In setting value, if the discharge superheat of compressor is less than setting value, controller control reduces the aperture of bypass expansion valve, such as
The discharge superheat of fruit compressor is higher than setting value, then controller control increases the aperture of bypass expansion valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710967336.9A CN107843023A (en) | 2017-10-17 | 2017-10-17 | A kind of refrigerating machine device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710967336.9A CN107843023A (en) | 2017-10-17 | 2017-10-17 | A kind of refrigerating machine device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107843023A true CN107843023A (en) | 2018-03-27 |
Family
ID=61661602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710967336.9A Pending CN107843023A (en) | 2017-10-17 | 2017-10-17 | A kind of refrigerating machine device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107843023A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108240723A (en) * | 2018-03-31 | 2018-07-03 | 开平市高美空调设备有限公司 | A kind of refrigeration equipment based on blue tooth wireless communication |
| CN108692478A (en) * | 2018-05-04 | 2018-10-23 | 珠海格力电器股份有限公司 | The control method of air-conditioning system and air-conditioning system |
| CN110793201A (en) * | 2019-11-13 | 2020-02-14 | 无锡溥汇机械科技有限公司 | Air-cooled high-temperature heat exchange system with controllable water tank temperature and use method thereof |
| CN112833522A (en) * | 2019-11-22 | 2021-05-25 | 三花控股集团有限公司 | Control system and control method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101666559A (en) * | 2006-03-27 | 2010-03-10 | 三菱电机株式会社 | Refrigerating and air-conditioning plant |
| CN104634033A (en) * | 2015-01-28 | 2015-05-20 | 中国科学院青岛生物能源与过程研究所 | Electronic expansion valve control system and method |
| CN105333660A (en) * | 2015-11-09 | 2016-02-17 | 南京天加空调设备有限公司 | Method for protecting compressor of multi-split air conditioning system |
| CN106642790A (en) * | 2016-12-26 | 2017-05-10 | 广东美的制冷设备有限公司 | Air-conditioning system and control method |
| CN106871486A (en) * | 2017-04-24 | 2017-06-20 | 大连中星科技开发有限公司 | Control method for electronic expansion valve and air source heat pump system |
-
2017
- 2017-10-17 CN CN201710967336.9A patent/CN107843023A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101666559A (en) * | 2006-03-27 | 2010-03-10 | 三菱电机株式会社 | Refrigerating and air-conditioning plant |
| CN104634033A (en) * | 2015-01-28 | 2015-05-20 | 中国科学院青岛生物能源与过程研究所 | Electronic expansion valve control system and method |
| CN105333660A (en) * | 2015-11-09 | 2016-02-17 | 南京天加空调设备有限公司 | Method for protecting compressor of multi-split air conditioning system |
| CN106642790A (en) * | 2016-12-26 | 2017-05-10 | 广东美的制冷设备有限公司 | Air-conditioning system and control method |
| CN106871486A (en) * | 2017-04-24 | 2017-06-20 | 大连中星科技开发有限公司 | Control method for electronic expansion valve and air source heat pump system |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108240723A (en) * | 2018-03-31 | 2018-07-03 | 开平市高美空调设备有限公司 | A kind of refrigeration equipment based on blue tooth wireless communication |
| CN108692478A (en) * | 2018-05-04 | 2018-10-23 | 珠海格力电器股份有限公司 | The control method of air-conditioning system and air-conditioning system |
| CN108692478B (en) * | 2018-05-04 | 2019-10-22 | 珠海格力电器股份有限公司 | The control method of air-conditioning system and air-conditioning system |
| CN110793201A (en) * | 2019-11-13 | 2020-02-14 | 无锡溥汇机械科技有限公司 | Air-cooled high-temperature heat exchange system with controllable water tank temperature and use method thereof |
| CN112833522A (en) * | 2019-11-22 | 2021-05-25 | 三花控股集团有限公司 | Control system and control method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107843023A (en) | A kind of refrigerating machine device | |
| CN104697106B (en) | Air-conditioning system compress control method | |
| US9927135B2 (en) | Charge management for air conditioning | |
| CN104949210B (en) | The control method of air-conditioning system, air conditioner and air-conditioning system | |
| US11199342B2 (en) | Air conditioner | |
| EP3163217B1 (en) | Refrigeration cycle device | |
| CN103528188B (en) | air source hot water machine system and control method thereof | |
| CN105371403B (en) | Frequency conversion air-cooled formula air-conditioner set and control method | |
| CN105571075B (en) | A kind of control method of water-cooled multi-connected machine return-air increasing enthalpy | |
| CN105318491B (en) | The control method and device of air conditioner | |
| US10533783B2 (en) | Air conditioner having compressor bypass and evaluation of volume of connecting pipe | |
| CN106765903B (en) | A kind of control method of the outer blower for air-conditioning system | |
| CN112840164B (en) | Air conditioner and management device | |
| CN109373636B (en) | System and method for preventing liquid impact | |
| JP2014190554A (en) | Air conditioner | |
| US20220221200A1 (en) | Refrigeration apparatus | |
| US11340001B2 (en) | Refrigeration cycle apparatus | |
| AU2013275605B2 (en) | Refrigerating Device | |
| CN111023373A (en) | Heat pump system and air conditioner | |
| CN204574648U (en) | A kind of energy-saving type air conditioner mechanism | |
| CN110023684A (en) | Determination method, the determining device of tube diameter and the refrigerating plant of tube diameter | |
| JP5948237B2 (en) | Air conditioner | |
| CN106369861A (en) | Refrigeration device and control method thereof | |
| CN206207811U (en) | Refrigeration or heat pump and Condensing units | |
| CN209524621U (en) | A kind of air conditioner muffler and air-conditioning |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180327 |