CN109631207A - A kind of power heat pipe combined air conditioners all-in-one machine - Google Patents
A kind of power heat pipe combined air conditioners all-in-one machine Download PDFInfo
- Publication number
- CN109631207A CN109631207A CN201910032955.8A CN201910032955A CN109631207A CN 109631207 A CN109631207 A CN 109631207A CN 201910032955 A CN201910032955 A CN 201910032955A CN 109631207 A CN109631207 A CN 109631207A
- Authority
- CN
- China
- Prior art keywords
- gas
- throttle
- liquid separator
- compressor
- liquid
- 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
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/001—Compression cycle type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0046—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Signal Processing (AREA)
- Sustainable Energy (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The invention discloses a kind of power heat pipe combined air conditioners all-in-one machines, including evaporator, centrifugal compressor, condenser, gas-liquid separator, fluid reservoir, liquid pump, first throttle valve, second throttle, check valve and solenoid valve.The evaporator, gas-liquid separator, liquid pump, first throttle valve successively join end to end to form vaporization cycle circuit in order;The compressor, condenser, fluid reservoir, second throttle, gas-liquid separator successively join end to end to form condensing circuit in order;The check valve is connect with compressor parallel;The solenoid valve is connected in parallel with second throttle.It is an advantage of the invention that making end liquid-supplying system be in the self-support state of a control of steady working condition always using gas-liquid separator, the control difficulty of system liquid pump first throttle valve is considerably reduced.Centrifugal compressor is also used, compressor oil-free can be run, and whole system improves the safety of system without the concern for problem of oil return, also improves the efficiency of system.
Description
Technical field
The present invention relates to air conditioner refrigerating fields, specifically, are related to a kind of power heat pipe combined air conditioners all-in-one machine.
Background technique
For common air-conditioning since pipeline is shorter, most of lubricating oil successfully flows back to compressor with refrigerant, therefore does not have to
Consider problem of oil return, but multi-line system due to big (up to 50m) elbow of long (the being up to 125m) drop of pipeline it is more, system trapped fuel
Place is more, and oil return is difficult.With the increase of running time, the lubricating oil in system is cumulative, compressor can because oil starvation and
Damage.Therefore solve the problems, such as that oil return hardly possible is the essential condition for guaranteeing multi-connected machine and operating normally.
In order to reduce oil return resistance, reduce the place of trapped fuel in pipeline, multi-connected machine in design the length of connecting line and
Diameter is all restricted, and installation difficulty is very big, it is necessary to through professional's design and installation.Patent No. 2018116027642
Patent of invention using oil-free magnetic suspension compressor to solve the problems, such as multi-connected machine oil return difficult, but the system is in mechanical refrigeration
When mode, the variation of outdoor wet-bulb temperature will affect the pressure of working medium at condenser, it may appear that the pressure is greater than the confession at fluorine pump
The case where hydraulic coupling, is unfavorable for determining system control state point, also increases liquid pump control so that feed flow temperature be caused constantly to change
Difficulty processed;It also results in throttle valve and is in different work always for the control precision under pressure ring border, influencing throttle valve.
Summary of the invention
It is an object of the invention to overcome the above-mentioned problems of the prior art, and provide a kind of power heat pipe combined air conditioners
All-in-one machine solves combined air conditioners one by using the method for the intermediate gas-liquid separator of oil-free centrifugal compressor and increase
Liquid pump control difficulty and the accurate feed flow difficulty of throttle valve caused by the oil return of body machine is difficult and feed flow temperature constantly changes are asked
Topic.
The present invention solves technical problem and adopts the following technical scheme that
A kind of power heat pipe combined air conditioners all-in-one machine, including evaporator, compressor, condenser, gas-liquid separator, fluid reservoir, liquid
Pump, first throttle valve, second throttle, check valve and solenoid valve.The evaporator, gas-liquid separator, liquid pump, first throttle valve
It successively joins end to end to form vaporization cycle circuit in order;The connecting pin of the evaporator and gas-liquid separator is located at gas-liquid separation
It is more than the medium level of device;The connecting pin of the liquid pump and gas-liquid separator is located at the medium level of gas-liquid separator or less;Institute
Compressor, condenser, fluid reservoir, second throttle, gas-liquid separator is stated successively to join end to end to form condensation cycle time in order
Road;The connecting pin of the compressor and gas-liquid separator is located at the medium level of gas-liquid separator or more;The second throttle
It is located at the medium level of gas-liquid separator or less with the connecting pin of gas-liquid separator;The check valve is connect with compressor parallel;
The solenoid valve is connected in parallel with second throttle;The compressor is centrifugal compressor.
Further, condenser can be using air-cooled, water cooling or evaporation cooling.
Further, evaporator can have one, two or more.
Further, each evaporator is matched with a throttle valve.
Further, centrifugal compressor is magnetic suspension centrifugal compressor or gas suspension centrifugal compressor.
There are two types of operational modes, respectively mechanical refrigeration mode and natural cooling mode for this system.When outdoor temperature is higher
When, check valve and solenoid valve are closed, and compressor, liquid pump, first throttle valve, second throttle are opened, and system runs mechanical refrigeration
Mode;When outdoor temperature is lower, compressor and second throttle are closed, and check valve, solenoid valve, first throttle valve, liquid pump are beaten
It opens, system runs natural cooling mode.Above two mode can be switched over according to outdoor environment temperature and demand.
The advantages of power heat pipe combined air conditioners all-in-one machine of the invention be using gas-liquid separator by evaporation circulating system and
Condensation cycle system separates, and so that end liquid-supplying system is in the self-support state of a control of steady working condition always, considerably reduces
The control difficulty of system liquid pump and first throttle valve.Centrifugal compressor is also used, compressor oil-free can be run, and whole system is not required to
Consider problem of oil return, improve the safety of system, also improves the efficiency of system.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of power heat pipe combined air conditioners all-in-one machine of the present invention.
In figure: (1) evaporator;(2) first throttle valve;(3) liquid pump;(4) gas-liquid separator;(5) centrifugal compressor;(6)
Check valve;(7) condenser;(8) fluid reservoir;(9) solenoid valve;(10) second throttle.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention more comprehensible, right hereinafter, referring to the drawings and the embodiments,
The present invention is further described.
It is structural schematic diagram of the invention described in Fig. 1.A kind of power heat pipe combined air conditioners all-in-one machine, including evaporator 1,
Compressor, condenser 7, gas-liquid separator 4, fluid reservoir 8, liquid pump 3, first throttle valve 2, second throttle 10, check valve 6 and electricity
Magnet valve 9.The evaporator 1, gas-liquid separator 4, liquid pump 3, first throttle valve 2 successively join end to end to form vaporization cycle in order
Circuit;The connecting pin of the evaporator 1 and gas-liquid separator 4 is located at the medium level of gas-liquid separator 4 or more;The liquid pump 3
It is located at the medium level of gas-liquid separator 4 or less with the connecting pin of gas-liquid separator 4;The compressor, condenser 7, fluid reservoir
8, second throttle 10, gas-liquid separator 4 successively join end to end to form condensing circuit in order;The compressor and gas-liquid
The connecting pin of separator 4 is located at the medium level of gas-liquid separator 4 or more;The second throttle 10 and gas-liquid separator 4
Connecting pin is located at the medium level of gas-liquid separator 4 or less;The check valve 6 is connect with compressor parallel;The solenoid valve 9 with
Second throttle 10 is connected in parallel;The compressor is centrifugal compressor 5.
When outdoor temperature is higher, check valve 6 and solenoid valve 9 are closed, compressor, liquid pump 3, first throttle valve 2, the second section
It flows valve 10 to open, system runs mechanical refrigeration mode.Liquid pump 3 extracts the liquid refrigeration working medium in gas-liquid separator 4, passes through first
Evaporator 1 is transported to after throttle valve 2, evaporator 1 is contacted with high temperature heat source, and liquid working media is in evaporator 1 by Gao Wenre
The heating in source and be evaporated to gas, and absorb heat, the gas for evaporating formation enters gas-liquid separator 4 and carries out gas-liquid separation.With
This simultaneously, gaseous refrigerant working medium extracts compression by compressor and becomes high-temperature high-pressure state and to condenser 7 in gas-liquid separator 4
Conveying, high pressure gaseous refrigeration working medium radiate in condenser 7 become liquid refrigeration working medium after into fluid reservoir 8, then lead to
The decompression for crossing second throttle 10 returns in gas-liquid separator 4 to be recycled next time.It loops back and forth like this, just completes machinery
The heat transfer process of refrigeration work mode.
When outdoor temperature is lower, compressor and second throttle 10 are closed, check valve 6, solenoid valve 9, first throttle valve
2, liquid pump 3 is opened, and system runs natural cooling mode.Liquid pump 3 extracts the liquid refrigeration working medium in gas-liquid separator 4, by the
Evaporator 1 is transported to after one throttle valve 2, evaporator 1 is contacted with high temperature heat source, and liquid working media is in evaporator 1 by high temperature
The heating of heat source and be evaporated to gas, and absorb heat, the gas for evaporating formation enters gas-liquid separator 4 and carries out gas-liquid separation.
At the same time, gaseous refrigerant working medium enters condenser 7 after flowing through check valve 6 in gas-liquid separator 4, and gaseous refrigerant working medium is condensing
Heat dissipation becomes to enter fluid reservoir 8 after liquid refrigeration working medium in device 7, then flows through solenoid valve 9 and returns in gas-liquid separator 4 and carries out down
One cycle.It loops back and forth like this, just completes the heat transfer process of natural cooling operating mode.
This system uses gas-liquid separator 4, is separated evaporation circulating system and condensation cycle system using gas-liquid separator 4
It opens, so that end liquid-supplying system is in the self-support state of a control of steady working condition always, considerably reduce system liquid pump 3 and first segment
Flow the control difficulty of valve 2.
This system uses centrifugal compressor 5, oil-free can run, and whole system improves without the concern for problem of oil return and is
The safety of system also improves the efficiency of system, and to the of less demanding of place, installation difficulty is very low, and the installation of condenser 7 is high
Spend no requirement (NR), the installation length also no requirement (NR) to medium pipeline.This system can also use magnetic suspension centrifugal compressor 5 or gas
Suspended centrifugal compressor 5, the further efficiency for improving system.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of power heat pipe combined air conditioners all-in-one machine, which is characterized in that including evaporator, compressor, condenser, gas-liquid separation
Device, fluid reservoir, liquid pump, first throttle valve, second throttle, check valve and solenoid valve;The evaporator, gas-liquid separator, liquid
Pump, first throttle valve successively join end to end to form vaporization cycle circuit in order;The connection of the evaporator and gas-liquid separator
End is located at the medium level of gas-liquid separator or more;The connecting pin of the liquid pump and gas-liquid separator is located at the work of gas-liquid separator
Below matter liquid level;The compressor, condenser, fluid reservoir, second throttle, gas-liquid separator successively join end to end shape in order
At condensing circuit;The connecting pin of the compressor and gas-liquid separator is located at the medium level of gas-liquid separator or more;Institute
The connecting pin for stating second throttle and gas-liquid separator is located at the medium level of gas-liquid separator or less;The check valve and compression
Machine is connected in parallel;The solenoid valve is connected in parallel with second throttle;The compressor is centrifugal compressor;When outdoor temperature compared with
Gao Shi, check valve and solenoid valve are closed, and compressor, liquid pump, first throttle valve, second throttle are opened, the mechanical system of system operation
Cold mode;When outdoor temperature is lower, compressor and second throttle are closed, check valve, solenoid valve, first throttle valve, liquid pump
It opens, system runs natural cooling mode.
2. a kind of power heat pipe combined air conditioners all-in-one machine according to claim 1, it is further characterized in that: the condenser can
Using air-cooled, water cooling or evaporation cooling.
3. a kind of power heat pipe combined air conditioners all-in-one machine according to claim 1, it is further characterized in that: the evaporator can
And have one, two or more.
4. a kind of power heat pipe combined air conditioners all-in-one machine according to claim 3, it is further characterized in that: each evaporation
Device is matched with a throttle valve.
5. a kind of power heat pipe combined air conditioners all-in-one machine according to claim 1, it is further characterized in that: centrifugal compressor is
Magnetic suspension centrifugal compressor or gas suspension centrifugal compressor.
6. a kind of power heat pipe combined air conditioners all-in-one machine according to claim 1, it is further characterized in that: described two operations
The switching of mode is carried out automatically according to outdoor environment temperature and demand.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910032955.8A CN109631207A (en) | 2019-01-14 | 2019-01-14 | A kind of power heat pipe combined air conditioners all-in-one machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910032955.8A CN109631207A (en) | 2019-01-14 | 2019-01-14 | A kind of power heat pipe combined air conditioners all-in-one machine |
Publications (1)
Publication Number | Publication Date |
---|---|
CN109631207A true CN109631207A (en) | 2019-04-16 |
Family
ID=66061855
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201910032955.8A Pending CN109631207A (en) | 2019-01-14 | 2019-01-14 | A kind of power heat pipe combined air conditioners all-in-one machine |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN109631207A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112484180A (en) * | 2019-09-11 | 2021-03-12 | 广东美的白色家电技术创新中心有限公司 | Air conditioner |
CN112781280A (en) * | 2021-02-02 | 2021-05-11 | 杭州祥博传热科技股份有限公司 | Environment sensing cooling system and control method thereof |
CN116147217A (en) * | 2023-04-03 | 2023-05-23 | 西安交通大学 | Ejector-liquid pump compound synergistic refrigeration cycle system for cooling data center |
CN117553364A (en) * | 2024-01-09 | 2024-02-13 | 深圳中集天达吉荣航空制冷有限公司 | Aircraft ground air conditioning system based on phase change cold accumulation and control method |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007127353A (en) * | 2005-11-04 | 2007-05-24 | Hitachi Ltd | Air-conditioner |
CN102798184A (en) * | 2012-08-13 | 2012-11-28 | 北京德能恒信科技有限公司 | Heat tube and heat pump compounding system |
CN103175276A (en) * | 2013-04-12 | 2013-06-26 | 南京佳力图空调机电有限公司 | Air-cooling direct-current frequency-conversion magnetic levitation nature cold source water chilling unit |
CN106016539A (en) * | 2016-06-29 | 2016-10-12 | 北京丰联奥睿科技有限公司 | Multi-branch heat pipe and heat pump compounding system |
CN106196372A (en) * | 2016-08-19 | 2016-12-07 | 北京丰联奥睿科技有限公司 | A kind of power heat pipe all-in-one air conditioning system |
CN206377872U (en) * | 2016-11-24 | 2017-08-04 | 南京佳力图机房环境技术股份有限公司 | A kind of new natural cold source refrigerating system |
CN209371426U (en) * | 2019-01-14 | 2019-09-10 | 北京丰联奥睿科技有限公司 | A kind of power heat pipe combined air conditioners all-in-one machine |
-
2019
- 2019-01-14 CN CN201910032955.8A patent/CN109631207A/en active Pending
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007127353A (en) * | 2005-11-04 | 2007-05-24 | Hitachi Ltd | Air-conditioner |
CN102798184A (en) * | 2012-08-13 | 2012-11-28 | 北京德能恒信科技有限公司 | Heat tube and heat pump compounding system |
CN103175276A (en) * | 2013-04-12 | 2013-06-26 | 南京佳力图空调机电有限公司 | Air-cooling direct-current frequency-conversion magnetic levitation nature cold source water chilling unit |
CN106016539A (en) * | 2016-06-29 | 2016-10-12 | 北京丰联奥睿科技有限公司 | Multi-branch heat pipe and heat pump compounding system |
WO2018000601A1 (en) * | 2016-06-29 | 2018-01-04 | 北京丰联奥睿科技有限公司 | Multi-branch heat pipe/heat pump composite system |
CN106196372A (en) * | 2016-08-19 | 2016-12-07 | 北京丰联奥睿科技有限公司 | A kind of power heat pipe all-in-one air conditioning system |
CN206377872U (en) * | 2016-11-24 | 2017-08-04 | 南京佳力图机房环境技术股份有限公司 | A kind of new natural cold source refrigerating system |
CN209371426U (en) * | 2019-01-14 | 2019-09-10 | 北京丰联奥睿科技有限公司 | A kind of power heat pipe combined air conditioners all-in-one machine |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112484180A (en) * | 2019-09-11 | 2021-03-12 | 广东美的白色家电技术创新中心有限公司 | Air conditioner |
CN112484180B (en) * | 2019-09-11 | 2021-12-17 | 广东美的白色家电技术创新中心有限公司 | Air conditioner |
CN112781280A (en) * | 2021-02-02 | 2021-05-11 | 杭州祥博传热科技股份有限公司 | Environment sensing cooling system and control method thereof |
CN116147217A (en) * | 2023-04-03 | 2023-05-23 | 西安交通大学 | Ejector-liquid pump compound synergistic refrigeration cycle system for cooling data center |
CN116147217B (en) * | 2023-04-03 | 2024-03-12 | 西安交通大学 | Ejector-liquid pump compound synergistic refrigeration cycle system for cooling data center |
CN117553364A (en) * | 2024-01-09 | 2024-02-13 | 深圳中集天达吉荣航空制冷有限公司 | Aircraft ground air conditioning system based on phase change cold accumulation and control method |
CN117553364B (en) * | 2024-01-09 | 2024-04-02 | 深圳中集天达吉荣航空制冷有限公司 | Aircraft ground air conditioning system based on phase change cold accumulation and control method |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN109631207A (en) | A kind of power heat pipe combined air conditioners all-in-one machine | |
CN106642778A (en) | Oilless water chilling unit and air conditioning system | |
CN108489130A (en) | A kind of screw single machine three stage compression heat pump heating system and control method | |
CN107178833B (en) | Heat recovery external machine system and air conditioning system | |
CN109237844A (en) | The refrigeration control method and device of air-conditioning system, air-conditioning system | |
CN104864621B (en) | A kind of four-pipe system Dual-evaporator refrigeration system | |
CN205403228U (en) | Air conditioner refrigerant circulation system and air conditioner | |
CN209371426U (en) | A kind of power heat pipe combined air conditioners all-in-one machine | |
CN103851830A (en) | Oil balancing device and refrigerating equipment | |
CN204555461U (en) | Suction-jet type oil separating device and apply the refrigeration system of this device | |
CN103673437A (en) | Oil recovery device with cooling function and refrigerating system adopting oil recovery device | |
CN106871474A (en) | Air-cooled water-cooled combined air-conditioning system | |
CN107850356A (en) | Heat recovery system with liquid separator application | |
CN209371421U (en) | A kind of magnetic suspension centrifugal power heat pipe combined air conditioners all-in-one machine | |
CN209910083U (en) | Power heat pipe multi-connected air conditioner all-in-one machine | |
CN211400153U (en) | Water-cooled power heat pipe multi-connected air conditioning system | |
CN206488407U (en) | A kind of water source heat pump units device | |
CN204880908U (en) | High, normal, basic warm -cold matchmaker's recovery system | |
CN114857696A (en) | Magnetic suspension centrifugal air conditioning system | |
CN208475715U (en) | A kind of screw single machine three stage compression heat pump heating system | |
CN100441978C (en) | One-drive-multiple cooling-heating air conditioner | |
CN209386601U (en) | A kind of low temperature air conditioner system | |
CN209042801U (en) | A kind of high-temperature space supplies colod-application Condensing units | |
CN208154871U (en) | A kind of high temperature heat pump system of heat energy recycling | |
CN110220258B (en) | Air conditioning system, and operation control method and device of air conditioning system |
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 |