CN106288515A - A kind of System and method for for the waste heat recovery to data center - Google Patents
A kind of System and method for for the waste heat recovery to data center Download PDFInfo
- Publication number
- CN106288515A CN106288515A CN201610639407.8A CN201610639407A CN106288515A CN 106288515 A CN106288515 A CN 106288515A CN 201610639407 A CN201610639407 A CN 201610639407A CN 106288515 A CN106288515 A CN 106288515A
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- Prior art keywords
- heat
- liquid refrigerant
- heat exchanger
- microchannel
- gas refrigerant
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- 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.)
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Classifications
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- 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
- F25B30/00—Heat pumps
- F25B30/02—Heat pumps of the compression type
-
- 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
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/05—Compression system with heat exchange between particular parts of the system
Abstract
It is an object of the invention to provide a kind of System and method for for the waste heat recovery to data center.Wherein, this system includes: multiple microchannels evaporating heat exchanger makes liquid refrigerant be evaporated to gas refrigerant discharge after absorbing the heat in the described passage of heat after entering；Compressor, for being compressed gas refrigerant；Condenser, is connected with outer loop water system, so that liquefaction is the liquid refrigerant of High Temperature High Pressure again after the gas refrigerant release heat of described High Temperature High Pressure；Choke valve, for the liquid refrigerant decrease temperature and pressure to described High Temperature High Pressure；Refrigerated medium pump, for sending into described microchannel evaporating heat exchanger by liquid refrigerant.Compared with prior art, the present invention utilizes the waste heat recovery at heat pump principle complete paired data center.Specifically, whole data center machine room is regarded as a freezer by the present invention, arranges micro-channel heat exchanger, by freon heat pump, complete the waste heat recovery of data center in the passage of heat of data center.
Description
Technical field
The present invention relates to field of energy-saving technology, particularly relate to a kind of technology for the waste heat recovery to data center.
Background technology
At present, the heat that most of data centers produce is all to be discharged into outside atmosphere by air conditioner circulating system, can be right
Atmospheric environment pollutes.Or, by the waste heat recovery at the indirect complete paired data center of air-conditioner circulating water system.
For directly by the situation in the waste heat discharge of data center to air, one is the pollution for atmospheric environment, two
Being the waste for environmental resource, three is the theory not meeting the energy-conserving and environment-protective that current national is advocated.
For completing the situation of waste heat recovery indirectly by air-conditioner circulating water system, from the point of view of reducing energy consumption angle, to existing
The environmental stability having air-conditioner circulating water system damages, and for the number of some project system cooling system redundant configuration deficiency
Coming according to center, this technical risk is bigger.
Summary of the invention
It is an object of the invention to provide a kind of System and method for for the waste heat recovery to data center.
According to an aspect of the invention, it is provided the residual neat recovering system of a kind of data center, wherein, in described data
The heart is disposed with the passage of heat of closing；
Wherein, this system includes:
Multiple microchannels evaporating heat exchanger, is arranged in the upper area in the described passage of heat, and the most each microchannel is steamed
Send out heat exchanger and include entrance and the outlet of a gas refrigerant of a liquid refrigerant, so that liquid refrigerant enters institute
It is evaporated to gas refrigerant after stating microchannel evaporating heat exchanger and absorbing the heat in the described passage of heat discharge；
Compressor, for being compressed gas refrigerant, so that the gas refrigerant of high temperature becomes High Temperature High Pressure
Gas cooler；
Condenser, is connected with outer loop water system, so that the gas refrigerant of described High Temperature High Pressure is described cold
After discharging heat in condenser, liquefaction is the liquid refrigerant of High Temperature High Pressure again, and the heat discharged is by described outer loop water system
System absorbs；
Choke valve, for the liquid refrigerant decrease temperature and pressure to described High Temperature High Pressure；
Refrigerated medium pump, for sending into described microchannel evaporating heat exchanger by liquid refrigerant.
According to another aspect of the present invention, the exhaust heat recovering method of a kind of data center, wherein, described number are additionally provided
There is the passage of heat of closing according to center arrangement, the upper area in the described passage of heat be disposed with multiple microchannels evaporating heat exchanger,
The most each microchannel evaporating heat exchanger includes entrance and the outlet of a gas refrigerant of a liquid refrigerant,
Wherein, the method comprises the following steps:
Liquid refrigerant is sent into described microchannel evaporating heat exchanger by-refrigerated medium pump；
-liquid refrigerant is evaporated to gas refrigerant and discharges the evaporation of described microchannel after absorbing the heat in the described passage of heat
Heat exchanger；
-gas refrigerant becomes the gas refrigerant of High Temperature High Pressure after compressor compresses；
The gas refrigerant of-described High Temperature High Pressure discharges the liquid that liquefaction is High Temperature High Pressure again after heat within the condenser
Cold-producing medium, the heat discharged is by outer loop water Systemic absorption, wherein, described condenser and described outer loop water system phase
Connection；
Liquid refrigerant after-liquefaction, after choke valve decrease temperature and pressure, is sent into described micro-logical again by described refrigerated medium pump
Road evaporating heat exchanger, moves in circles with this.
Compared with prior art, the present invention utilizes the waste heat recovery at heat pump principle complete paired data center.Specifically, this
Bright as whole data center machine room is regarded a freezer, in the passage of heat of data center, arrange micro-channel heat exchanger, pass through fluorine
Leon heat pump, completes the waste heat recovery of data center.
For the most newly-built big-and-middle-sized data center, room arrangement is typically all cold and hot passage separately,
The present invention program is applicable to the data center that the passage of heat is closed.
Traditional data center machine room mean temperature is maintained at 27 ± 1 DEG C, and the return air temperature of air-conditioning is maintained at 35 ± 3 DEG C of left sides
The right side, such heat grade is suitable only for heating room or afterheat of hot water.It is contemplated that utilize micro-channel heat exchanger, according to heat pump
Principle, completes waste heat recovery.The low grade heat energy that data center produces can be improved by the residual neat recovering system of the present invention, makes
It heats for the peripheral cell of data center or office building after becoming high-grade heat energy winter.
Using problem for the heat energy after promoting, the when of winter, it is applicable to the peripheral cell of data center, writes
The heating such as building are used；For needing the place of thermic load the whole year, such as swimming pool, gymnasium, hospital etc., the recovery heat of data center
It can be able to be its annual heat supply.
Further, the good effect of heat exchange of the micro-channel heat exchanger in the present invention, the features such as refrigerant charge is little, and cost is low,
Also it is made to be more suitable for the waste heat recovery of data center.
Accompanying drawing explanation
By the detailed description that non-limiting example is made made with reference to the following drawings of reading, other of the present invention
Feature, purpose and advantage will become more apparent upon:
Fig. 1 illustrates the schematic diagram of microchannel of the present invention evaporating heat exchanger；
Fig. 2 illustrates the division of room schematic diagram of the data center that the present invention is suitable for；
Fig. 3 illustrates residual neat recovering system schematic diagram according to an embodiment of the invention；
Fig. 4 illustrates residual neat recovering system schematic diagram in accordance with a preferred embodiment of the present invention.
Detailed description of the invention
Concrete structure disclosed herein and function detail are the most representational, and are for describing showing of the present invention
The purpose of example embodiment.But the present invention can be implemented by many alternative forms, and is not interpreted as
It is limited only by the embodiments set forth herein.
Although it should be appreciated that here may have been used term " first ", " second " etc. to describe unit,
But these unit should not be limited by these terms.These terms are used to be only used to a unit and another unit
Make a distinction.For example, in the case of without departing substantially from the scope of exemplary embodiment, it is single that first module can be referred to as second
Unit, and second unit can be referred to as first module similarly.Term "and/or" used herein above include one of them or
Any and all combination of more listed associated item.
It should be appreciated that when a unit is referred to as " connection " or during " coupled " to another unit, and it can directly connect
Connect or be coupled to another unit described, or temporary location can be there is.On the other hand, it is referred to as " directly connecting when a unit
Connect " or " direct-coupling " to another unit time, the most there is not temporary location.Should explain in a comparable manner and be used for retouching
State the relation between unit other words (such as " and be in ... between " compared to " and be directly in ... between ", " with ... adjacent
Closely " compared to " with ... be directly adjacent to " etc.).
Term used herein above is only used to describe specific embodiment and be not intended to limit exemplary embodiment.Unless
Context refers else clearly, and singulative the most used herein above " ", " one " also attempt to include plural number.Also should
When being understood by, term used herein above " include " and/or " comprising " specify stated feature, integer, step, operation,
Unit and/or the existence of assembly, and do not preclude the presence or addition of other features one or more, integer, step, operation, unit,
Assembly and/or a combination thereof.
It should further be mentioned that in some replace implementation, the function/action being previously mentioned can be attached according to being different from
The order indicated in figure occurs.For example, depending on involved function/action, the two width figures in succession illustrated actually may be used
Substantially simultaneously to perform or sometimes can perform in a reverse order.
Below in conjunction with the accompanying drawings the present invention is described in further detail.
Fig. 1 illustrates the schematic diagram of microchannel of the present invention evaporating heat exchanger.
As it is shown in figure 1, microchannel evaporating heat exchanger 100 includes the entrance of a liquid refrigerant, such as collector tube 101, with
And the outlet of a gas refrigerant, such as discharge 102.Wherein, liquid refrigerant is from the liquid collecting of microchannel evaporating heat exchanger 100
Pipe 101 enters, and in microchannel evaporating heat exchanger 100, absorption heat of vaporization is discharged from discharge 102 after being gas refrigerant.
Fig. 2 illustrates the division of room schematic diagram of the data center that the present invention is suitable for.
Wherein, IT rack 200 is by row arrangement, and the hot blast air outlet of adjacent two row racks 200 is positioned opposite, to connect
Form the passage of heat 300 closed.Correspondingly, the cold air inlet of rack 200 opposite side is then open arranges, with room
Air-flow contacts, the coldest channel opener.
Upper area in the passage of heat 300 of each closing arranges multiple microchannels evaporating heat exchanger 100.A heat
In passage 300, all microchannels evaporating heat exchanger 100 is in being arranged in parallel, i.e. collector tube 101 is respectively positioned on the side of the passage of heat 300,
Discharge 102 is respectively positioned on the opposite side of the passage of heat 300, thus all collector tubes 101 can connect the arm of a liquid refrigerant
401, all discharges 102 can connect the arm 501 of a gas refrigerant.
Preferably, microchannel evaporating heat exchanger 100 is arranged in the top area of the passage of heat 300.Such as, microchannel evaporation
Heat exchanger 100 is disposed in below the passage of heat 300 top closing plate.The generally temperature of the passage of heat 300 is higher, and according to cold and hot sky
Temperature Gradient distribution, high hot-air is typically distributed across the top of the passage of heat 300, at top layout microchannel evaporating heat exchanger
100, liquid refrigerant can effectively evaporate inside microchannel evaporating heat exchanger 100, absorbs the heat of the passage of heat 300, thus
The headspace temperature of the passage of heat 300 reduces, and the relatively warm air of bottom spontaneous can rise to top subsequently, then be evaporated by microchannel
Heat exchanger 100 cools down, and the cold air at top can circulate toward flows, complete the air inside the passage of heat 300 then successively
Circulation of air flow.So can effectively reduce the temperature of the passage of heat 300, it is possible to reduce the power consumption of machine room end precision air conditioner, with
Time can improve the safety of computer room temperature.
The supervisor 400 of one liquid refrigerant connects the arm of the liquid refrigerant in each closing passage of heat 300, one
The supervisor 500 of gas refrigerant connects the arm of the gas refrigerant in each closing passage of heat 300.
The supervisor 400 of liquid refrigerant is by each arm microchannel evaporation and heat-exchange in each closing passage of heat 300 respectively
Device 100 infusion fluid cold-producing medium.After liquid refrigerant enters microchannel evaporating heat exchanger 100, absorb when IT rack 200 runs and produce
Raw heat, thus it is evaporated to gas refrigerant.It is micro-that gas refrigerant arm in each closing passage of heat 300 is connected
In passage evaporating heat exchanger 100, the gas refrigerant of evaporation exports the supervisor 500 to gas refrigerant.Accordingly, refrigerant liquid enters
The path that gas goes out is formed.
Fig. 3 illustrates residual neat recovering system schematic diagram according to an embodiment of the invention.
As it is shown on figure 3, residual neat recovering system includes microchannel evaporating heat exchanger 100, compressor 600, condenser 700, joint
Stream valve 800 and refrigerated medium pump 900.
In step S31, liquid refrigerant is sent into microchannel evaporating heat exchanger 100 by refrigerated medium pump 900.
In step s 32, after liquid refrigerant absorbs the heat in the passage of heat 300, in microchannel evaporating heat exchanger 100
It is evaporated to gas refrigerant, and then gas refrigerant enters compressor 600.
In step S33, after compressor 600 is to gas refrigerant compressed action so that it is become the gas system of High Temperature High Pressure
Cryogen, and then gas refrigerant entrance condenser 700.
Here, owing to have employed compressor so that gas refrigerant can become the gas refrigerant of High Temperature High Pressure, thus
Sufficiently high condensation temperature is provided, so that the cold-water return of outer loop water system 800 can absorb foot for condenser 700
Enough heats are heated to certain temperature and provide domestic hot-water.
In step S34, the gas refrigerant of High Temperature High Pressure condenses heat release at condenser 700 and becomes the liquid system of High Temperature High Pressure
Cryogen, condensation heat is absorbed by outer loop water system 800 to be taken away, and the liquid refrigerant again liquefied flows out condenser 700.
Wherein, condenser 700 is connected with outer loop water system 1000.Outer loop water system 1000 is the most such as write
The circulating water heating system in word building.Such as, cold water is returned by the circulating water heating system of office building 1001 by water circulating pump 1002
Water is sent in condenser 700, after cold-water return absorbs the heat of gas refrigerant condensation release of High Temperature High Pressure, becomes hot water and supplies
Water, thus flow into office building 1001 and to heat for office building.Cold-water return after heating absorption condensation again heat, circulates past with this
Multiple.
Use fan coil the present invention to the heating such as office building, gymnasium, both can be blower fan to peripheral cell heating
Coil pipe, it is also possible to be radiator heating, walk hot water in blower fan wind dish and radiator.One is installed additional during to periphery swimming pool for swimming pool hot water
Individual plate type heat exchanger, to the fan coil heating direct heating water of swimming pool.
In step s 35, the liquid refrigerant of High Temperature High Pressure is throttled decrease temperature and pressure by choke valve 800, becomes low temperature low
The liquid refrigerant of pressure.
Subsequently, liquid refrigerant is sent into evaporation endothermic inside microchannel evaporating heat exchanger 100 by refrigerated medium pump 900 again,
Move in circles execution above-mentioned steps S31-S35 successively.
Fig. 4 illustrates residual neat recovering system schematic diagram in accordance with a preferred embodiment of the present invention.
As shown in Figure 4, residual neat recovering system includes microchannel evaporating heat exchanger 100, compressor 600-1 and 600-2, oil point
From device 1100, device for drying and filtering 1200-1 and 1200-2, high-pressure reservoir 1300, low pressure recycle bucket 1400, choke valve 800, cold
Condenser 700 and refrigeration pump 900.
In step S41, in low pressure recycle bucket 1400, the liquid refrigerant drying filter 1200-1 of storage is dried,
Microchannel evaporating heat exchanger 100 is sent into by refrigerated medium pump 900.
In step S42, after liquid refrigerant absorbs the heat in the passage of heat 300, in microchannel evaporating heat exchanger 100
It is evaporated to gas refrigerant, and then gas refrigerant enters compressor 600-1 and 600-2 via low pressure recycle bucket 1400.
In step S43, after compressor 600-1 and 600-2 is respectively to gas refrigerant compressed action so that it is become high temperature
The gas refrigerant of high pressure, and then gas refrigerant entrance oil eliminator 1100.
In step S44, the oil in the gas refrigerant of oil eliminator 1100 separating high-temp high pressure, and oil will be separated
After High Temperature High Pressure gas refrigerant send into condenser 700.
Here, it should be noted that residual neat recovering system includes that oil eliminator is only a preferred exemplary, namely oil point
The optional equipment of system it is only from device.Such as, when compressor uses the compressor of band lubricating oil, system needs oil eliminator
Separate the oil in gas refrigerant.And for example, if residual neat recovering system use the centrifugal oilless (oil free) compressor of magnetic suspension, then without
Oil eliminator separates the oil in gas refrigerant.
In step S45, the gas refrigerant of High Temperature High Pressure condenses heat release at condenser 700 and becomes the liquid system of High Temperature High Pressure
Cryogen, condensation heat is absorbed by outer loop water system to be taken away, and the liquid refrigerant again liquefied flows out condenser 700.Wherein, cold
Condenser 700 is typically such as horizontal condenser.
In step S46, the liquid refrigerant of High Temperature High Pressure is admitted to high-pressure reservoir 1300, and drying filters subsequently
Device 1200-2 is dried, to be throttled decrease temperature and pressure by choke valve 800.
Here, it should be noted that high-pressure reservoir 1300 is similarly the optional equipment of residual neat recovering system, that is,
In the case of not having high-pressure reservoir 1300, residual neat recovering system the most normally works, and it only needs choke valve 800 to come height
The liquid refrigerant of temperature high pressure carries out decrease temperature and pressure.
In step S47, the liquid refrigerant of the High Temperature High Pressure of drying is throttled decrease temperature and pressure by choke valve 800, becomes
For the liquid refrigerant of low-temp low-pressure, it is admitted to low pressure recycle bucket 1400 and stores.
Subsequently, liquid refrigerant is sent into evaporation endothermic inside microchannel evaporating heat exchanger 100 by refrigerated medium pump 900 again,
Move in circles execution above-mentioned steps S41-S47 successively.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of the spirit or essential attributes of the present invention, it is possible to realize the present invention in other specific forms.Therefore, no matter
From the point of view of which point, all should regard embodiment as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all by fall in the implication of equivalency and scope of claim
Change is included in the present invention.Should not be considered as limiting involved claim by any reference in claim.
Claims (10)
1. a residual neat recovering system for data center, wherein, described data center is disposed with the passage of heat of closing；
Wherein, this system includes:
Multiple microchannels evaporating heat exchanger, is arranged in the upper area in the described passage of heat, and the evaporation of the most each microchannel is changed
Hot device includes entrance and the outlet of a gas refrigerant of a liquid refrigerant, so that liquid refrigerant enters described micro-
Passage evaporating heat exchanger is also evaporated to gas refrigerant after absorbing the heat in the described passage of heat and discharges；
Compressor, for being compressed gas refrigerant, so that the gas refrigerant of high temperature becomes the gas of High Temperature High Pressure
Refrigerator；
Condenser, is connected with outer loop water system, so that the gas refrigerant of described High Temperature High Pressure is at described condenser
After middle release heat, liquefaction is the liquid refrigerant of High Temperature High Pressure again, and the heat discharged is inhaled by described outer loop water system
Receive；
Choke valve, for the liquid refrigerant decrease temperature and pressure to described High Temperature High Pressure；
Refrigerated medium pump, for sending into described microchannel evaporating heat exchanger by liquid refrigerant.
System the most according to claim 1, wherein, this system also includes:
Low pressure recycle bucket, is used for storing liquid refrigerant；
Wherein, the liquid refrigerant stored is sent into described microchannel evaporating heat exchanger by described refrigerated medium pump；
Wherein, the liquid refrigerant through described choke valve decrease temperature and pressure is stored to institute's low pressure and states circulation barrel.
System the most according to claim 1 and 2, wherein, this system also includes:
Oil eliminator, is arranged between described compressor and described condenser, for separating the gas system of described High Temperature High Pressure
Oil in cryogen.
System the most according to any one of claim 1 to 3, wherein, this system also includes:
High-pressure reservoir, is arranged between described condenser and described choke valve, for storing liquefaction in described condenser
The liquid refrigerant of High Temperature High Pressure.
System the most according to any one of claim 1 to 4, wherein, the plurality of microchannel evaporating heat exchanger is in parallel
Arranging, the entrance of liquid refrigerant and the outlet of gas refrigerant of the plurality of microchannel evaporating heat exchanger lay respectively at institute
State the side of the passage of heat.
6. an exhaust heat recovering method for data center, wherein, described data center is disposed with the passage of heat of closing, and described heat is led to
Being disposed with multiple microchannels evaporating heat exchanger in upper area in road, the most each microchannel evaporating heat exchanger includes a liquid
The entrance of cryogen and the outlet of a gas refrigerant,
Wherein, the method comprises the following steps:
Liquid refrigerant is sent into described microchannel evaporating heat exchanger by-refrigerated medium pump；
-liquid refrigerant is evaporated to gas refrigerant and discharges described microchannel evaporation and heat-exchange after absorbing the heat in the described passage of heat
Device；
-gas refrigerant becomes the gas refrigerant of High Temperature High Pressure after compressor compresses；
The gas refrigerant of-described High Temperature High Pressure discharges the liquid refrigerating that liquefaction is High Temperature High Pressure again after heat within the condenser
Agent, the heat discharged is by outer loop water Systemic absorption, and wherein, described condenser is connected with described outer loop water system
Logical；
Liquid refrigerant after-liquefaction, after choke valve decrease temperature and pressure, is again sent into described microchannel by described refrigerated medium pump and is steamed
Send out heat exchanger, move in circles with this.
Method the most according to claim 6, wherein, the method also includes:
-liquid refrigerant is stored in low pressure recycle bucket, to be sent into described microchannel evaporating heat exchanger by described refrigerated medium pump.
8. according to the method described in claim 6 or 7, wherein, the method also includes:
The gas refrigerant of-described High Temperature High Pressure enters described condenser after oil eliminator separates oil therein.
9. according to the method according to any one of claim 6 to 8, wherein, the method also includes:
-in high-pressure reservoir, store the liquid refrigerant of the High Temperature High Pressure of liquefaction in described condenser, for subsequently by described
Choke valve decrease temperature and pressure.
10. according to the method according to any one of claim 6 to 9, wherein, the plurality of microchannel evaporating heat exchanger is in parallel
Arranging, the entrance of liquid refrigerant and the outlet of gas refrigerant of the plurality of microchannel evaporating heat exchanger lay respectively at institute
State the side of the passage of heat.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610639407.8A CN106288515A (en) | 2016-08-05 | 2016-08-05 | A kind of System and method for for the waste heat recovery to data center |
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| CN201610639407.8A CN106288515A (en) | 2016-08-05 | 2016-08-05 | A kind of System and method for for the waste heat recovery to data center |
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| CN108566761B (en) * | 2018-01-26 | 2019-11-08 | 青岛理工大学 | It is a kind of using the data center computer room heat extraction of cabinet-level heat pipe and waste heat utilization system |
| CN108966963A (en) * | 2018-06-20 | 2018-12-11 | 辽阳易恒电子科技有限公司 | A kind of data Ecological Greenhouse using data center computer room residual heat heating |
| CN109340964A (en) * | 2018-11-14 | 2019-02-15 | 中国铁路设计集团有限公司 | A kind of plate heat exchange reclaiming type air-cooled fluorine pump machine room Special air-conditioning device |
| CN109751799A (en) * | 2018-12-17 | 2019-05-14 | 珠海格力电器股份有限公司 | Composite type cold heat source air conditioning system and temperature control method |
| CN113371016A (en) * | 2020-03-09 | 2021-09-10 | 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） | Liquid loop circulating refrigeration system for sealed cabin in vacuum environment and train |
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