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 PDF

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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
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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
Application number
CN201910032955.8A
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Chinese (zh)
Inventor
任宇宙
祝长宇
杨兴明
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Beijing Deneng Hengxin Technology Co Ltd
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Beijing Deneng Hengxin Technology Co Ltd
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.)
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Publication date
Application filed by Beijing Deneng Hengxin Technology Co Ltd filed Critical Beijing Deneng Hengxin Technology Co Ltd
Priority to CN201910032955.8A priority Critical patent/CN109631207A/en
Publication of CN109631207A publication Critical patent/CN109631207A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00Air-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
    • F24F5/0007Air-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
    • F24F5/001Compression cycle type
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/62Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63Electronic processing
    • F24F11/65Electronic processing for selecting an operating mode
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/70Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83Control 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
    • F24F11/84Control 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/30Arrangement or mounting of heat-exchangers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00Air-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
    • F24F5/0046Air-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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00Control inputs relating to air properties
    • F24F2110/10Temperature
    • F24F2110/12Temperature of the outside air

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  • 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

A kind of power heat pipe combined air conditioners all-in-one machine
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.
CN201910032955.8A 2019-01-14 2019-01-14 A kind of power heat pipe combined air conditioners all-in-one machine Pending CN109631207A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (8)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

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