CN108633225A - Computer-room air conditioning system - Google Patents
Computer-room air conditioning system Download PDFInfo
- Publication number
- CN108633225A CN108633225A CN201810438188.6A CN201810438188A CN108633225A CN 108633225 A CN108633225 A CN 108633225A CN 201810438188 A CN201810438188 A CN 201810438188A CN 108633225 A CN108633225 A CN 108633225A
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- China
- Prior art keywords
- computer
- air conditioning
- conditioning system
- room air
- expansion valve
- Prior art date
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 84
- 239000007788 liquid Substances 0.000 claims abstract description 14
- 239000003507 refrigerant Substances 0.000 claims abstract description 11
- 238000011144 upstream manufacturing Methods 0.000 claims description 29
- 230000005611 electricity Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 3
- 238000005057 refrigeration Methods 0.000 description 9
- 238000001816 cooling Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 238000004134 energy conservation Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20709—Modifications to facilitate cooling, ventilating, or heating for server racks or cabinets; for data centers, e.g. 19-inch computer racks
- H05K7/20718—Forced ventilation of a gaseous coolant
- H05K7/20745—Forced ventilation of a gaseous coolant within rooms for removing heat from cabinets, e.g. by air conditioning device
-
- 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
- F25B1/00—Compression machines, plants or systems with non-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
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20709—Modifications to facilitate cooling, ventilating, or heating for server racks or cabinets; for data centers, e.g. 19-inch computer racks
- H05K7/20836—Thermal management, e.g. server temperature control
-
- 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
- F25B2700/191—Pressures near an expansion valve
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention belongs to air conditioner in machine room technical fields, it is intended to solve the problems, such as that existing computer-room air conditioning system can not ensure the normal operation of itself under ultra-low temperature surroundings and be not easy to computer-room air conditioning system mounting arrangements.Thus, the present invention provides a kind of computer-room air conditioning systems, computer-room air conditioning system includes condenser, evaporator, compressor, liquid storage device and electric expansion valve, condenser, liquid storage device, electric expansion valve, evaporator and compressor form the cycle main road of closed loop, computer-room air conditioning system further includes pressurizing pack, pressurizing pack can promote refrigerant pressure by auxiliary compressor in such a way that access recycles main road, and in computer-room air conditioning system energy-saving run instead of the function of compressor.The present invention makes computer-room air conditioning system that can be worked normally under ultra-low temperature surroundings, and the piping length of computer-room air conditioning system can be improved to a certain extent and widens the limitation of its height fall, to allow computer-room air conditioning system to meet the installation requirement of various different construction styles.
Description
Technical field
The invention belongs to air conditioner in machine room technical fields, specifically provide a kind of computer-room air conditioning system.
Background technology
With the fast development of internet economy, many network electronic computer rooms are built out.Electronic equipment in computer room
Whole year operation, can give out amount of heat, computer-room air conditioning system is correspondingly needed to drop the electronic equipment in electronics computer room
Temperature needs computer-room air conditioning system year round cooling to run.In the case of outdoor temperature is lower in winter, computer-room air conditioning system is being made
Often there are the condensing pressure relatively low failures such as to occur alarming when cold operation, to make unit can not operate normally.In order to protect
Demonstrate,prove computer room inner electronic equipment normal cooling demand, to air conditioner in machine room product year round cooling run especially refrigeration under low-temperature environment or
The safe and reliable refrigerating operaton of ultra-low temperature surroundings proposes very strict requirement.
In the prior art, generally use reduces the mode of outdoor fan rotating speed to promote the condensation of low temperature environment air-conditioning system
Pressure.The adjustment of outdoor unit rotation speed of fan generally is carried out by detecting outdoor unit condenser pressure or temperature signal value, makes sky
Adjusting system condensing pressure maintains setting value nearby to carry out refrigerating operaton.However, this come by adjusting outdoor fan rotating speed
Adapting to the scheme that outdoor low circumstance temperature carries out cryogenic refrigeration has the use scope of outdoor circumstance temperature certain requirement, by a large amount of work
Journey experience have shown that, using drop wind speed scheme be generally only capable of meeting the stable operation of the air-conditioning system under subzero 15 DEG C of case above,
When circumstance temperature continues to reduce, the program is difficult to ensure the normal operation of air-conditioning system.For example, in northeast, Inner Mongol of China etc.
The ultra-low temperature surroundings that lower 30 DEG C or so of northern area zero in winter are very common, thus the scheme of this drop wind speed can not ensure this area
Computer room winter refrigeration demand.In addition to this, most of computer room and conventional office region are in same seat building, due to air-conditioning
The volume of equipment is bigger, is usually that outdoor heat dissipation condenser is placed on the roof of ground or building in arrangement, phase
Internal-external machine is answered to have certain piping length and high low head, due to the presence of resistance loss of pipeline and loss of head, unit is permitted
Perhaps piping length and drop cannot meet actual demands of engineering well sometimes.
Therefore, this field needs a kind of new computer-room air conditioning system to solve the above problems.
Invention content
In order to solve the above problem in the prior art, in order to solve existing computer-room air conditioning system under ultra-low temperature surroundings
The problem of can not ensureing the normal operation of itself and being not easy to computer-room air conditioning system mounting arrangements, the present invention provides a kind of machines
Room air-conditioning system, computer-room air conditioning system include condenser, evaporator, compressor, liquid storage device and electric expansion valve, condenser, storage
Liquid device, electric expansion valve, evaporator and compressor form the cycle main road of closed loop, and computer-room air conditioning system further includes pressurizing pack,
Pressurizing pack can promote refrigerant pressure by auxiliary compressor in such a way that access recycles main road, and energy saving in computer-room air conditioning system
Instead of the function of compressor when operation.
In the optimal technical scheme of above-mentioned computer-room air conditioning system, pressurizing pack include be arranged in parallel pressurization cycle pump and
First solenoid valve, pressurization cycle pump and the first solenoid valve are co-located on cycle main road, and the first solenoid valve can control supercharging
Circulating pump is selectively accessing cycle main road.
In the optimal technical scheme of above-mentioned computer-room air conditioning system, the upstream side of electric expansion valve is provided with pressure sensing
Device, pressure sensor are used to detect the upstream side pressure of electric expansion valve.
In the optimal technical scheme of above-mentioned computer-room air conditioning system, it is less than setting in the upstream side pressure of electric expansion valve and presses
In the case of force threshold, pressurization cycle pump access cycle main road.
In the optimal technical scheme of above-mentioned computer-room air conditioning system, it is greater than or equal in the upstream side pressure of electric expansion valve
In the case of setting pressure threshold, pressurization cycle pump does not access cycle main road.
In the optimal technical scheme of above-mentioned computer-room air conditioning system, recycles and be provided with set in parallel with electric expansion valve on main road
The second solenoid valve set, second solenoid valve can control electric expansion valve and be selectively accessing cycle main road.
In the optimal technical scheme of above-mentioned computer-room air conditioning system, recycles and be provided with third solenoid valve and the 4th electricity on main road
Magnet valve, third solenoid valve are arranged in series with compressor and are arranged in parallel jointly with the 4th solenoid valve.
In the optimal technical scheme of above-mentioned computer-room air conditioning system, pressurizing pack setting liquid storage device and electric expansion valve it
Between.
In the optimal technical scheme of above-mentioned computer-room air conditioning system, pressurizing pack is arranged between condenser and liquid storage device.
It, can be with by pressurizing pack it will be appreciated to those of skill in the art that in the preferred technical solution of the present invention
Auxiliary compressor further promotes refrigerant pressure so that if can not ensure separately through compressor in ultralow temperature cold
It can be compensated by pressurizing pack when matchmaker's pressure, to ensure the normal operation of computer-room air conditioning system, that is, ensure computer room
Air-conditioning system can continue refrigerating operaton, and the electronic equipment in computer room is made to work in suitable environment temperature always, to make
Computer-room air conditioning system can reliablely and stablely be run always.In addition, when the electronic equipment in computer room carries out underload work, by
It is smaller in the calorific value of electronic equipment itself, compressor can be closed, computer-room air conditioning system is only maintained by pressurizing pack
Normal operation, to using indoor/outdoor temperature-difference carry out natural cooling circularly cooling, and then computer-room air conditioning system is allow to save
It can run, be effectively reduced the PUE indexs of computer room, reduce computer room operating cost.Meanwhile air conditioner in machine room system through the invention
System, can improve the adaptability of its own, computer-room air conditioning system is made to can adapt to more occasions, for example, can be in certain journey
Its piping length is improved on degree and widens the limitation of its height fall, is built to allow computer-room air conditioning system to meet various differences
Build the installation requirement of form.
Further, the upstream side pressure of electric expansion valve can be detected in real time by pressure sensor, you can with indirect
The pressure difference for obtaining electric expansion valve upstream and downstream, bigger in pressure difference (is specially that the upstream side pressure of electric expansion valve is more than or waits
In setting pressure threshold) in the case of, computer-room air conditioning system can directly carry out normal refrigerating operaton, and pressure difference is smaller
In the case of (upstream side pressure for being specially electric expansion valve is less than setting pressure threshold), computer-room air conditioning system can not carry out just
Normal refrigerating operaton needs the refrigerant pressure for improving electric expansion valve upstream side, makes the pressure difference of electric expansion valve upstream and downstream at this time
Increase, to ensure that computer-room air conditioning system carries out normal refrigerating operaton.Setting in this way, i.e., by setting pressure threshold
Setting, computer-room air conditioning system can be made either still can be worked normally under ultra-low temperature surroundings in low temperature environment, into
The operational reliability of computer-room air conditioning system is improved to one step, ensures that the electronic equipment in computer room can be always in most suitable temperature
It is run under environment.
Further, it can make computer-room air conditioning system neatly in conventional system by third solenoid valve and the 4th solenoid valve
Chill formula (including cryogenic refrigeration operational mode and super low temperature refrigeration operational mode) switches between energy saver mode, to raising pair
The flexibility of computer-room air conditioning system control, and computer-room air conditioning system is enable reliablely and stablely to run.
Description of the drawings
Fig. 1 is the structural schematic diagram of the computer-room air conditioning system of the present invention；
Fig. 2 is structural schematic diagram of the computer-room air conditioning system of the present invention under normal cooling operation mode；
Fig. 3 is structural schematic diagram of the computer-room air conditioning system of the present invention under super low temperature refrigeration operational mode；
Fig. 4 is structural schematic diagram of the computer-room air conditioning system of the present invention under energy conservation model.
Specific implementation mode
The preferred embodiment of the present invention described with reference to the accompanying drawings.It will be apparent to a skilled person that this
A little embodiments are used only for explaining the technical principle of the present invention, it is not intended that limit the scope of the invention.
It should be noted that in the description of the present invention, the direction of the instructions such as term "upper", "inner", "outside" or position are closed
The term of system is direction based on ... shown in the drawings or position relationship, this is intended merely to facilitate description, rather than indicates or imply
Described device or element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as to this hair
Bright limitation.In addition, term " first ", " second ", " third ", " the 4th " are used for description purposes only, and should not be understood as indicating
Or imply relative importance.
In addition it is also necessary to explanation, in the description of the present invention unless specifically defined or limited otherwise, term " is set
Set ", " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection,
Or it is integrally connected；It can be mechanical connection, can also be electrical connection；It can be directly connected, intermediary can also be passed through
It is indirectly connected, can be the connection inside two elements.To those skilled in the art, on can understanding as the case may be
State the concrete meaning of term in the present invention.
The existing computer-room air conditioning system pointed out based on background technology can not ensure the normal fortune of itself under ultra-low temperature surroundings
The problem of going and being not easy to computer-room air conditioning system mounting arrangements, the present invention provides a kind of computer-room air conditioning systems, it is intended to make machine
Room air-conditioning system either still can work normally under ultra-low temperature surroundings in low temperature environment, and can be to a certain degree
It is upper improve computer-room air conditioning system piping length and widen its height fall limitation, to allow computer-room air conditioning system to meet
The installation requirement of various difference construction styles.
Specifically, as shown in Figure 1, the computer-room air conditioning system of the present invention includes compressor 1, condenser 3, liquid storage device 4, electronics
Expansion valve 8 and evaporator 9, condenser 3, liquid storage device 4, electric expansion valve 8, evaporator 9 and compressor 1 form the cycle master of closed loop
The downstream side on road, compressor 1 is provided with check valve 2, and pressurizing pack of the invention can assist in such a way that access recycles main road
Compressor 1 promotes refrigerant pressure, and in computer-room air conditioning system energy-saving run instead of the function of compressor 1.Wherein, supercharging group
Pressurization cycle pump 5 and the matched structure of solenoid valve may be used in part, also either using the structure of booster again or using it
His pressurized construction, those skilled in the art can flexibly set the concrete structure of pressurizing pack in practical applications, as long as logical
Refrigerant pressure can be promoted by auxiliary compressor 1 in such a way that access recycles main road by crossing pressurizing pack, and in computer-room air conditioning system
Instead of the function of compressor 1 when energy-saving run.In addition, pressurizing pack can be arranged liquid storage device 4 and electric expansion valve 8 it
Between, it can also be arranged between condenser 3 and liquid storage device 4, those skilled in the art can flexibly set in practical applications
The specific installation position of pressurizing pack, if refrigerant pressure can be promoted by pressurizing pack, and can be in air conditioner in machine room system
Instead of the function of compressor 1 when system energy-saving run.
Preferably, pressurizing pack includes the pressurization cycle pump 5 and first solenoid valve 6 being arranged in parallel, pressurization cycle pump 5 and the
One solenoid valve 6 is co-located on cycle main road, and the first solenoid valve 6 can control pressurization cycle pump 5 and be selectively accessing cycle
Main road.As shown in Figure 1, when the first solenoid valve 6 is opened, pressurization cycle pump 5 can not access cycle main road, and the first solenoid valve 6 is closed,
5 access cycle main road of pressurization cycle pump.
Preferably, there are low pressure or other alarm failures and causes computer-room air conditioning system normal in cryogenic refrigerating system
The basic reason of operation is that the pressure difference of the upstream and downstream side of electric expansion valve 8 is inadequate, that is, is due to the refrigerant in computer-room air conditioning system
Can not be caused by normal circulating with choke, therefore, the upstream side of electric expansion valve 8 is provided with pressure sensor 12, pressure sensing
Device 12 is used to detect the upstream side pressure of electric expansion valve 8.The upstream of electric expansion valve 8 can be detected by pressure sensor 12
Lateral pressure is less than to judge the pressure difference of the upstream and downstream side of electric expansion valve 8 indirectly in the upstream side pressure of electric expansion valve 8
In the case of setting pressure threshold, 5 access cycle main road of pressurization cycle pump；Be more than in the upstream side pressure of electric expansion valve 8 or
In the case of setting pressure threshold, pressurization cycle pump 5 does not access cycle main road.
It is further preferred that the second solenoid valve 7 being arranged in parallel with electric expansion valve 8 is provided on cycle main road, second
Solenoid valve 7 can control electric expansion valve 8 and be selectively accessing cycle main road.As shown in Figure 1, electric expansion valve 8 is passed with pressure
Sensor 12 is arranged in series and is arranged in parallel jointly with second solenoid valve 7, and when second solenoid valve 7 is opened, electric expansion valve 8 does not access
Main road is recycled, when second solenoid valve 7 is closed, the access cycle main road of electric expansion valve 8.
It is further preferred that being provided with third solenoid valve 10 and the 4th solenoid valve 11, third solenoid valve 10 on cycle main road
It is arranged in series with compressor 1 and is arranged in parallel jointly with the 4th solenoid valve 11.As shown in Figure 1, when third solenoid valve 10 open and
When 4th solenoid valve 11 is closed, the access cycle main road of compressor 1；When the closing of third solenoid valve 10 and the 4th solenoid valve 11 is opened
When, compressor 1 picks out cycle main road.
With reference to computer-room air conditioning system in normal refrigerating operaton, super low temperature refrigeration operation and energy-saving run Three models
Under specific implementation operating mode further illustrate technical scheme of the present invention.
As shown in Fig. 2, when pressure sensor 12 detects upstream side pressure Pd >=Pd0+ Δ P of electric expansion valve 8, say
The pressure difference of the upstream and downstream side of bright electric expansion valve at this time 8 is enough, and computer-room air conditioning system enters normal refrigeration operational state, that is, increases
Press circulating pump 5 without accessing cycle main road, the first solenoid valve 6 and third solenoid valve 10 are opened at this time, second solenoid valve 7 and the 4th
Solenoid valve 11 is closed, and compressor 1 starts normal refrigerating operaton, the pressure value that outdoor fan is detected according to pressure sensor 12
Pd carrys out speed governing operation.
As shown in figure 3, when pressure sensor 12 detects the upstream side pressure Pd ＜ Pd0- Δ P of electric expansion valve 8, say
The pressure difference of the upstream and downstream side of bright electric expansion valve at this time 8 is inadequate, and computer-room air conditioning system cannot be introduced into normal refrigeration operational state,
I.e. pressurization cycle pump 5 needs to access cycle main road, and the first solenoid valve 6, second solenoid valve 7 and the 4th solenoid valve 11 are closed at this time,
Third solenoid valve 10 is opened, and pressurization cycle pump 5 and compressor 1 are opened simultaneously, and electric expansion valve 8 is promoted by pressurization cycle pump 5
Upstream side refrigerant pressure until computer-room air conditioning system can steadily be run in the range of license, to realize that unit exists
It can reliablely and stablely be run under ultra-low temperature surroundings.
As shown in figure 4, when computer room inner electronic equipment is in underrun state, for example, electronic equipment at night or
In the period that other low frequencies use, since the corresponding calorific value of electronic equipment reduces, correspondingly system of the computer room to cooling-down air conditioner
Cold reduces, and in the case of running herein, energy saver mode operation may be used in computer-room air conditioning system of the invention, to reduce machine
Room PUE, save computer room operating cost, at this time need detect indoor environment temperature Tn and outdoor environment temperature Tw, when Tn-Tw >=
When Δ T, then computer-room air conditioning system can enter energy conservation model, and the first solenoid valve 6 and third solenoid valve 10 are closed at this time, and second
Solenoid valve 7 and the 4th solenoid valve 11 are opened, and to make compressor 1 close and pick out cycle main road, then pressurization cycle pump 5 is independent
It opens to provide the refrigerant circulation power in computer-room air conditioning system, then carries out natural cooling cycle system using indoor/outdoor temperature-difference
It is cold.Wherein, those skilled in the art can flexibly set the concrete numerical value of above-mentioned Δ T in practical applications, as long as passing through Δ T
Setting can determine whether computer-room air conditioning system can enter energy conservation model.
It should be noted that in the present invention, PUE refers to writing a Chinese character in simplified form for Power Usage Effectiveness, is
The index for evaluating data center's energy efficiency is that all energy of data center's consumption and IT load the ratio between the energy used,
Have become the measurement index of data center's electricity usage efficiency more current in the world, and PUE values are closer to 1, table
Show that the green degree of a data center is higher.
In addition it is also necessary to explanation, Pd0 above-mentioned can be preset pressure value, and Δ P is that threshold value can as Δ P=0
Using by Pd0 as judging the whether enough separations of the pressure difference of the upstream and downstream side of electric expansion valve 8, can be with as Δ P ≠ 0
It is used as respectively by Pd0+ Δ P and Pd0- Δ two values of P and judges whether the pressure difference of the upstream and downstream side of electric expansion valve 8 is enough
Separation.That is, setting pressure threshold above-mentioned can be a value, or two values, those skilled in the art
Setting pressure threshold can be flexibly set in practical applications, as long as can judge electronics by setting pressure threshold
Enough whether, the adjustment and change of this setting pressure threshold are without departing from this hair for the pressure difference of the upstream and downstream side of expansion valve 8
Bright principle and range, should all limit within protection scope of the present invention.
So far, it has been combined preferred embodiment shown in the drawings and describes technical scheme of the present invention, still, this field
Technical staff is it is easily understood that protection scope of the present invention is expressly not limited to these specific implementation modes.Without departing from this
Under the premise of the principle of invention, those skilled in the art can make the relevant technologies feature equivalent change or replacement, these
Technical solution after change or replacement is fallen within protection scope of the present invention.
Claims (9)
1. a kind of computer-room air conditioning system, the computer-room air conditioning system includes condenser, evaporator, compressor, liquid storage device and electronics
Expansion valve, the condenser, the liquid storage device, the electric expansion valve, the evaporator and the compressor form closed loop
Main road is recycled,
It is characterized in that, the computer-room air conditioning system further includes pressurizing pack, the pressurizing pack can be to access the cycle
The mode of main road assists the compressor to promote refrigerant pressure, and in the computer-room air conditioning system energy-saving run instead of described
The function of compressor.
2. computer-room air conditioning system according to claim 1, which is characterized in that the pressurizing pack includes the increasing being arranged in parallel
Circulating pump and the first solenoid valve, the pressurization cycle pump and first solenoid valve is pressed to be co-located on the cycle main road,
First solenoid valve can control the pressurization cycle pump and be selectively accessing the cycle main road.
3. computer-room air conditioning system according to claim 2, which is characterized in that the upstream side of the electric expansion valve is provided with
Pressure sensor, the pressure sensor are used to detect the upstream side pressure of the electric expansion valve.
4. computer-room air conditioning system according to claim 3, which is characterized in that in the upstream side pressure of the electric expansion valve
In the case of setting pressure threshold, the pressurization cycle pump accesses the cycle main road.
5. computer-room air conditioning system according to claim 4, which is characterized in that in the upstream side pressure of the electric expansion valve
In the case of the setting pressure threshold, the pressurization cycle pump does not access the cycle main road.
6. computer-room air conditioning system according to claim 1, which is characterized in that be provided with and the electricity on the cycle main road
The second solenoid valve that sub- expansion valve is arranged in parallel, the second solenoid valve can control the electric expansion valve and be selectively accessing
The cycle main road.
7. computer-room air conditioning system according to claim 1, which is characterized in that be provided with third electromagnetism on the cycle main road
Valve and the 4th solenoid valve, the third solenoid valve are arranged in series with the compressor and jointly in parallel with the 4th solenoid valve set
It sets.
8. computer-room air conditioning system according to any one of claim 1 to 7, which is characterized in that the pressurizing pack setting
Between the liquid storage device and the electric expansion valve.
9. computer-room air conditioning system according to any one of claim 1 to 7, which is characterized in that the pressurizing pack setting
Between the condenser and the liquid storage device.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810438188.6A CN108633225B (en) | 2018-05-09 | 2018-05-09 | Air conditioning system for machine room |
| PCT/CN2019/073159 WO2019214297A1 (en) | 2018-05-09 | 2019-01-25 | Server room air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810438188.6A CN108633225B (en) | 2018-05-09 | 2018-05-09 | Air conditioning system for machine room |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108633225A true CN108633225A (en) | 2018-10-09 |
| CN108633225B CN108633225B (en) | 2021-11-26 |
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ID=63692341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810438188.6A Active CN108633225B (en) | 2018-05-09 | 2018-05-09 | Air conditioning system for machine room |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108633225B (en) |
| WO (1) | WO2019214297A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019214297A1 (en) * | 2018-05-09 | 2019-11-14 | 青岛海尔空调电子有限公司 | Server room air conditioning system |
| CN114811981A (en) * | 2021-01-27 | 2022-07-29 | 维谛技术有限公司 | Refrigerating system, and operation control method and device of refrigerating system |
| CN115623764B (en) * | 2022-12-19 | 2023-03-21 | 浙江德塔森特数据技术有限公司 | AI and data flow-based data center equipment operation abnormity analysis method |
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| CN113757958B (en) * | 2020-06-04 | 2022-12-27 | 维谛技术有限公司 | Control method and device of air conditioning system |
| CN114576875A (en) * | 2021-12-01 | 2022-06-03 | 祥博传热科技股份有限公司 | Low-energy-consumption intelligent temperature-sensing cooling system |
| CN114680360B (en) * | 2022-03-04 | 2023-06-16 | 青岛海尔空调电子有限公司 | Drying system for tobacco and control method for tobacco |
| CN115096012A (en) * | 2022-06-28 | 2022-09-23 | 鹏鸟科技(山东)有限公司 | Refrigerating system with gas-liquid relay |
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| CN204373249U (en) * | 2014-12-26 | 2015-06-03 | 艾默生网络能源有限公司 | A kind of refrigeration control system and a kind of air-conditioning |
| CN106642773A (en) * | 2016-12-12 | 2017-05-10 | 珠海格力电器股份有限公司 | Air conditioning system and control method thereof |
| JP2017134677A (en) * | 2016-01-28 | 2017-08-03 | 株式会社Ｎｔｔファシリティーズ | Computer room air conditioning system |
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Also Published As
| Publication number | Publication date |
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| WO2019214297A1 (en) | 2019-11-14 |
| CN108633225B (en) | 2021-11-26 |
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