CN207395061U - A kind of data center's air-conditioning system - Google Patents
A kind of data center's air-conditioning system Download PDFInfo
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- CN207395061U CN207395061U CN201721339456.6U CN201721339456U CN207395061U CN 207395061 U CN207395061 U CN 207395061U CN 201721339456 U CN201721339456 U CN 201721339456U CN 207395061 U CN207395061 U CN 207395061U
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Abstract
The utility model discloses a kind of data center's air-conditioning system, wherein, air-conditioning system includes：Refrigeration module, cold-storage module and control module, the cold-storage module include：Cold-storage device, cold-storage pumps and several electric two-way valves, and phase-change material layers are provided in the cold-storage device.Data center's air-conditioning system provided by the utility model, so that air-conditioning system can be after compressor be out of service, can still be by phase-change material layers released cold quantity keeps the relative constant cold in certain time to export, and reduces start/stop of compressor number, ensures the operation of data center machine room long time stability.
Description
Technical field
Air-conditioning system more particularly to a kind of data center's air-conditioning system the utility model is related to data center.
Background technology
Many computer rooms of data center's industry at present, IT bearing powers are often larger with full-load run phase difference, in early period
It during design matching air-conditioning, is configured when ordinary circumstance is according to IT server full-load runs, during actual motion, IT loads can
50% or so heat load can be only exported, this just exports with the refrigerating capacity of air-conditioning and extremely mismatches, and such situation is prevalent in mesh
Preceding cabinet-type data center products are in modular data center occasion, bad shadow is generated to the normal operation of IT servers
It rings.
For fixed frequency air conditioner system, when load is mismatched with refrigerating capacity, the shape of high frequent start and stop can be generated
Condition, compressor unlatching run time is very short, just triggers halt instruction.High frequent start and stop are easy to cause the compressor body service life
Shorten, and the inrush current that frequent start-stop generates, it is also unfavorable that data Central Grid is stablized.
For frequency-conversion air-conditioning system, when data center IT loads are too small, compressor longtime running in low frequency section,
For compressor itself, since running frequency is low, compressor rotary speed is slow, and oil return inefficient, longtime running can also generate pressure
Contracting machine oil face is too low, the problems such as influencing compressor body motor radiating, unfavorable to compressor long-term safety reliability service.
As it can be seen that the prior art has yet to be improved and developed.
Utility model content
In view of above-mentioned deficiencies of the prior art, the purpose of this utility model is to provide a kind of data center's air-conditioning system,
It aims to solve the problem that data center's compressor day-to-day operation load in the prior art is mismatched with air-conditioning system output refrigerating capacity, causes to press
The problem of contracting machine frequent start-stop.
The technical solution of the utility model is as follows：
A kind of data center's air-conditioning system, including refrigeration module, the passage of heat and cold passage, the refrigeration module includes Xun Huan
Evaporator, expansion valve, compressor and the condenser of connection；Wherein, data center's air-conditioning system further includes：Cold-storage module；
The cold-storage module includes：Cold-storage device, cold-storage pump, hold-over coil and several electric two-way valves, the cold-storage
Pump is connected with the hold-over coil, and the electric two-way valve is arranged at the hold-over coil input end, the cold-storage device via
Pipeline is connected between electric two-way valve and cold-storage pump；
Phase-change material layers phase-change material layers are provided in the cold-storage device in compressor operating and electric two-way valve
During opening store refrigeration module export refrigerating capacity allowance and compressor close and electric two-way valve open when and hot return air
Air-flow carries out the phase-change material layers of cold and hot exchange；
Several described electric two-way valves are set up in parallel, and extra refrigerating capacity is discharged after being used to open to cold-storage device.
Further, the hold-over coil fits with evaporator, and hot return air stream is successively by evaporator and cold-storage disk
Pipe.
Further, the cold-storage device is for installed outdoors, and the cold-storage device and electric two-way valve are via connection
Pipeline is formed with a circulation loop, and a dry and cold device is provided on the circulation loop.
Further, the dry and cold device is connected with the first solenoid valve, and first solenoid valve is connected to control panel, for
Outdoor temperature is suitable for opening during natural cooling source.
Further, first solenoid valve is connected in parallel to second solenoid valve, and the second solenoid valve is connected to control
Plate, for being opened when outdoor temperature is not suitable as natural cooling source.
Further, the evaporator is provided with several, and several evaporators and several electric two-way valves are one by one
It is correspondingly connected with, each evaporator is all connected with an expansion valve.
Further, the cold-storage pump is cold-storage variable frequency pump, for carrying out flow-rate adjustment according to the traffic demand of indoor unit.
Further, data center's air-conditioning system is additionally provided with control module, and the control module includes：Air-supply temperature
Spend sensor, the first temperature sensor, second temperature sensor, return air temperature sensor and control panel；The wind pushing temperature passes
Sensor is located in cold passage, for detecting the wind pushing temperature of refrigeration module in real time, and is sent to control panel；First temperature passes
Sensor is located in cold-storage device, for detecting the temperature value of phase-change material layers in real time, and is sent to control panel；The second temperature
Sensor is located in data center, for the temperature value in real-time detector data center, and is sent to control panel；The return air temperature
Degree sensor is located in the passage of heat, for detecting the temperature value of return air stream in real time, and is sent to control panel.
Compared with prior art, data center's air-conditioning system provided by the utility model, as a result of multiple electronic two
Port valve and the cold-storage device for being provided with phase-change material layers so that air-conditioning system can still be by after compressor is out of service
Phase-change material layers released cold quantity keeps the relative constant cold output in certain time, reduces start/stop of compressor number, ensures number
It is run according to central machine room long time stability.
Description of the drawings
Fig. 1 is the structure diagram of data center's air-conditioning system preferred embodiment in the utility model.
Fig. 2 is evaporator and hold-over coil position relationship in the preferred embodiment of data center's air-conditioning system in the utility model
Schematic diagram.
Fig. 3 is that evaporator and hold-over coil are installed on room in the preferred embodiment of data center's air-conditioning system in the utility model
The position view of interior machine.
Specific embodiment
The utility model provides a kind of data center's air-conditioning system, to make the purpose of this utility model, technical solution and effect
Fruit is clearer, clear and definite, referring to the drawings and gives an actual example to the utility model further description.It should be appreciated that herein
Described specific embodiment is only used to explain the utility model, is not used to limit the utility model.
The utility model provides a kind of data center's air-conditioning system（Hereinafter referred to as air-conditioning system）, preferred embodiment is such as
Shown in Fig. 1, including：Sequentially connected compressor 110, condenser 120, expansion valve 130 and evaporator 140, it is compressor 110, cold
Condenser 120, expansion valve 130 and evaporator 140 constitute the refrigeration module 100 in the utility model air-conditioning system, compressor 110
From the refrigerant gas of air intake duct sucking low-temp low-pressure, operated by motor after being compressed with piston to it, to exhaust pipe
Discharge high temperature and pressure refrigerant gas, provide power for refrigeration cycle, so as to fulfill compression → condensation (heat release) → expansion →
Evaporate the refrigeration cycle of (heat absorption).
The utility model emphasis thes improvement is that, further includes：Cold-storage module 200, the cold-storage module 200 include Fig. 1
Shown electric two-way valve 210, the first solenoid valve 220, dry and cold device 230, second solenoid valve 240, cold-storage device 250, cold-storage pump
260 and hold-over coil 270, wherein the first solenoid valve 220, dry and cold device 230 and second solenoid valve 240 can be not provided with, this
Utility model will be described in detail in a further preferred embodiment.
The electric two-way valve 210 is arranged at the input end of hold-over coil 270, is provided with several, with several evaporations
Device 140 connects one to one, for discharging the extra refrigerating capacity of refrigeration module 100 to cold-storage device 250.
Be provided with phase-change material layers in the cold-storage device 250, the phase-change material layers be used to run in compressor 110 and
Storage refrigeration module 100 exports the allowance of refrigerating capacity when electric two-way valve 210 is opened and compressor 110 is closed and electronic
Two-port valve 210 open when with hot return air stream progress it is cold and hot exchange so that the temperature value in cold passage is in preset range.It stores
250 big I of device for cooling carries out matching according to the heat load of data center's IT servers and determines, if desired for the cold-storage of longer time
And standby cooling function, then 250 programmable bigger of cold-storage device, storable cold are more.
The cold-storage pump 260 is cold-storage variable frequency pump, possesses frequency conversion function, can be carried out according to the traffic demand of different indoor units
Flow-rate adjustment, it is energy-efficient.
Understandable to be, the electric two-way valve 210 of the utility model only can open and close two states, open shape
Under state, phase-change material layers absorb extra refrigerating capacity and are stored or discharged stored refrigerating capacity.More preferably scheme is to set control
Control panel in module makes it connect wind pushing temperature sensor, the first temperature sensor, second temperature sensor and return air temperature
Sensor.
The wind pushing temperature sensor is located in cold passage, for detecting the wind pushing temperature of refrigeration module 100 in real time, concurrently
It send to control panel；It, will be according to wind pushing temperature after control panel receives the wind pushing temperature value come transmitted by wind pushing temperature sensor
The wind pushing temperature value come transmitted by sensor controls 210 aperture of electric two-way valve.
When 100 wind pushing temperature of refrigeration module is near or below 18 DEG C, illustrate that the refrigerating capacity of air-conditioning system at this time is long-range
It is exported in the heat load of IT servers, 210 aperture of electric two-way valve is 100% at this time, and extra cold maximization is stored up
It deposits.Hereafter the first temperature sensor will be used, when the first temperature sensor persistently detects phase-change material layers constant temperature at some
Value, and be more than after setting stabilization time △ H, the cold stored by 250 phase change material inside layer of cold-storage device is given tacit consent at this time have been reached
To maximization, to save resource, cold-storage pump 260 will be stopped, and electric two-way valve 210 will close.
When 100 wind pushing temperature of refrigeration module is close to or higher than 24 DEG C, illustrate the refrigerating capacity and IT of air-conditioning system at this time
Server thermic load the output phase is to matching, and two-port valve is substantially fully closed at this time, i.e., at this time without excessive refrigerating capacity surplus for storage
It deposits.
210 ratio aperture ＆ of electric two-way valve is closed with the specifically corresponding of 100 wind pushing temperature T of its output voltage U and refrigeration module
System, it is as shown in the table：
It should be noted that when wind pushing temperature T is more than or equal to 24 DEG C, 210 ratio aperture ＆ of electric two-way valve can be 0,
Be exactly Close All, then its output voltage U will also become 0V, therefore, the output voltage range of electric two-way valve 210 for 0V extremely
5V。
When data center IT server thermic loads P is less than the refrigerating capacity minimum output valve Q of refrigeration module 100, electricity is opened
Dynamic two-port valve 210 carries out aperture ratio output according to wind pushing temperature and preset table operation program, and evaporator 140 is not at this time
It is disconnected to carry out absorption refrigeration, while the synchronous extra cold storage of progress of hold-over coil 270, the air-flow temperature after hold-over coil 270
Degree fall will slow down, and control air-conditioning temperature meets national standard, when temperature continues to drop to shutdown temperature value, this
When trigger halt instruction, control module output squeezing machine 110 stops action command, and electric two-way valve 210 is by standard-sized sheet at this time, it is ensured that
After compressor 110 is shut down, cold-storage module 200 can have longer time persistently to export cold, it is ensured that cold passage temperature meets the requirements
And can avoid completely compressor 110 shut down after generate hot return air stream moment be recycled into cold passage so as to occur condensation ask
Topic.
After the cold that cold-storage device 250 stores constantly is utilized, temperature is gradually increasing, and has been not enough to continue cooling heat
During return air stream, when return air temperature sensor detects that return air temperature has reached turn-on temperature, control module output squeezing machine 110
The instruction of start, at this time compressor 110 open, refrigeration module 100 restart refrigerating operaton.Meanwhile control module is according to sky
Wind pushing temperature detection and output two-port valve corresponding actions open command are adjusted, continues to execute the cool storage function of cold-storage module 200.
After compressor 110 is out of service, cold-storage module 200 is started to work, and due to cold-storage module 200, just only there are one store
260 output powers of cold pump, therefore refrigeration efficiency at this time has largely carried out energy saving far above refrigeration module 100.
Meanwhile be in an emergency in data center server, such as 110 failure of compressor, by cold-storage module 200 also
Can ensure in longer period of time server temperature will not rise it is too fast, to after sale processing reserved the very big time, number
It is high according to central machine room reliability level.
First temperature sensor is located in cold-storage device 250, for detecting the temperature value of phase-change material layers in real time, and
It is sent to control panel；After control panel receives the phase-change material layers temperature value come transmitted by the first temperature sensor, it will determine that
Whether phase-change material layers temperature value keeps constant, and Time constant is more than or equal to first threshold △ H, and after definitive result is obtained
Control electric two-way valve 210 is closed.
The second temperature sensor is located in data center, for the temperature value in real-time detector data center, concurrently
It send to control panel；After control panel receives the data center's temperature value come transmitted by second temperature sensor, data are will determine that
Whether central temperature value is less than or equal to second threshold, and after definitive result is obtained, control compressor 110 is out of service, and controls
Electric two-way valve 210 processed is opened.Data center's server inlet air temperature is generally between 18 DEG C to 27 DEG C, i.e. second threshold
Preferred value is 18 DEG C.
The return air temperature sensor is located in the passage of heat, for detecting the temperature value of return air stream in real time, and is sent to
Control panel；After control panel receives the return air stream temperature value that return air temperature sensor is sent, return air stream temperature will determine that
Whether angle value is more than or equal to the 3rd threshold value, and after definitive result is obtained compressor 110 is controlled to restart.It is same with second threshold
Reason, the 3rd threshold value preferred value are 27 DEG C.
It should be noted that the corresponding program software in the control panel is not in the utility model air-conditioning system
Within the protection domain of system, and common software engineer can complete the specific interior of the program software according to design requirement
The reasons why holding, technical solutions of the utility model insufficient disclosure should not be become or can not be implemented.
The cold-storage device 250 and electric two-way valve 210 are formed with a circulation loop, the dry and cold device via connecting line
230th, the first solenoid valve 220 and second solenoid valve 240 are all arranged on the circulation loop.
Dry and cold device 230 (DRY COOLER), i.e. dry cooler, the course of work do not have the consumption of water, are by pipe
Liquid is walked, natural wind is walked outside pipe to cool down liquid in pipe, liquid in pipe temperature is reduced, achievees the purpose that cooling.In winter conditions
The relatively low outdoor area of temperature sets dry and cold device 230, so as to by the use of outdoor temperature as natural cooling source, carry out indoor refrigeration and dissipate
Heat is conducive to further improve air conditioner system energy saving effect.
First solenoid valve 220 plays the work for enabling dry and cold device 230 as the valve being directly connected to dry and cold device 230
With control panel being connected to, for being opened when outdoor temperature is suitable for natural cooling source.When the first solenoid valve 220 is opened,
Cold-storage module 200 runs flow path（Xun Huan）For：Cold-storage pumps 260-hold-over coil the 210-the first solenoid valve of 270-electric two-way valve
220-dry and cold 230-cold-storage device of device, 250-cold-storage pump 260.
And the second solenoid valve 240 is then arranged in parallel with the first solenoid valve 220, the second solenoid valve 240 also connects
In control panel, for being opened when outdoor temperature is not suitable as natural cooling source.When second solenoid valve 240 is opened, cold-storage mould
Block 200 runs flow path（Xun Huan）For：210-second solenoid valve of cold-storage pump 260-hold-over coil, 270-electric two-way valve 240-
250-cold-storage of cold-storage device pump 260.
In another preferred embodiment of the utility model, the dry and cold device 230, the first solenoid valve 220 and second solenoid valve
240 are all not provided with, then only have connecting line on circulation loop（In the environment using dry and cold device 230 is not suitable for, it can save lower dry
The cost of cooler 230, the first solenoid valve 220 and second solenoid valve 240）, at this point, cold-storage module 200 runs flow path（Xun Huan）For：
Cold-storage 250-cold-storage of pump 260-hold-over coil, 270-electric two-way valve, 210-cold-storage device pump 260.
As shown in Figures 2 and 3, in the utility model further preferred embodiment, the hold-over coil 270 and evaporation
Device 140 fits, and the two shares drip tray, and hot return air stream is successively by evaporator 140 and hold-over coil 270.
The utility model additionally provides a kind of control method of data center's air-conditioning system, which is characterized in that the control
It is as follows that method includes step：
Compressor start, refrigeration module start to freeze；
Wind pushing temperature sensor in cold passage detects the wind pushing temperature of refrigeration module in real time, and is sent to control panel；
Control panel according to transmitted by wind pushing temperature sensor come wind pushing temperature value, control electric two-way valve aperture；
Phase-change material layers in cold-storage device carry out cold and hot exchange with the air-flow after electric two-way valve；
The first temperature sensor in cold-storage device detects the temperature value of phase-change material layers in real time, and is sent to control panel；
Control panel receives the phase-change material layers temperature value come transmitted by the first temperature sensor, and judges phase-change material layers temperature
Whether angle value keeps constant, and Time constant is more than or equal to first threshold；If so, control panel control electric two-way valve is closed；
The temperature value in second temperature sensor real-time detector data center in data center, and it is sent to control panel；
Control panel receives the data center's temperature value come transmitted by second temperature sensor, and judges data center's temperature value
Whether second threshold is less than or equal to；If so, control panel control compressor is out of service, and electric two-way valve is controlled to open；
Phase-change material layers and hot return air stream carry out it is cold and hot exchange so that the temperature value in cold passage is in preset range
It is interior；
Return air temperature sensor in the passage of heat detects the temperature value of return air stream in real time, and is sent to control panel；
Control panel receives the return air stream temperature value that return air temperature sensor is sent, and judges that return air stream temperature value is
It is no to be more than or equal to the 3rd threshold value；If so, control panel control compressor restarting.
It should be appreciated that the application of the utility model is not limited to above-mentioned citing, those of ordinary skill in the art are come
It says, can be improved or converted according to the above description, all these modifications and variations should all belong to the appended power of the utility model
The protection domain of profit requirement.
Claims (8)
1. a kind of data center's air-conditioning system, including refrigeration module, the passage of heat and cold passage, the refrigeration module includes Xun Huan and connects
Evaporator, expansion valve, compressor and the condenser connect；It is characterized in that, data center's air-conditioning system further includes：Cold-storage mould
Block；
The cold-storage module includes：Cold-storage device, cold-storage pump, hold-over coil and several electric two-way valves, the cold-storage pump with
The hold-over coil connection, the electric two-way valve are arranged at the hold-over coil input end, and the cold-storage device is via pipeline
It is connected between electric two-way valve and cold-storage pump；
Phase-change material layers phase-change material layers are provided in the cold-storage device in compressor operating and electric two-way valve opening
When storage refrigeration module export refrigerating capacity allowance and compressor close and electric two-way valve open when and hot return air stream
Carry out the phase-change material layers of cold and hot exchange；
Several described electric two-way valves are set up in parallel, and extra refrigerating capacity is discharged after being used to open to cold-storage device.
2. data center's air-conditioning system according to claim 1, which is characterized in that the hold-over coil is affixed with evaporator
It closes, hot return air stream successively passes through evaporator and hold-over coil.
3. data center's air-conditioning system according to claim 1, which is characterized in that the cold-storage device is used to be mounted on room
Outside, the cold-storage device and electric two-way valve are formed with a circulation loop via connecting line, are provided on the circulation loop
One dry and cold device.
4. data center's air-conditioning system according to claim 3, which is characterized in that the dry and cold device is connected with the first electromagnetism
Valve, first solenoid valve are connected to control panel, for being opened when outdoor temperature is suitable for natural cooling source.
5. data center's air-conditioning system according to claim 4, which is characterized in that first solenoid valve is connected in parallel to
Second solenoid valve, the second solenoid valve are connected to control panel, for being opened when outdoor temperature is not suitable as natural cooling source.
6. data center's air-conditioning system according to claim 1, which is characterized in that the evaporator is provided with several,
And several evaporators connect one to one with several electric two-way valves, each evaporator is all connected with an expansion valve.
7. data center's air-conditioning system according to claim 1, which is characterized in that the cold-storage pump is cold-storage variable frequency pump,
For carrying out flow-rate adjustment according to the traffic demand of indoor unit.
8. data center's air-conditioning system according to claim 1, which is characterized in that data center's air-conditioning system is also set
Control module is equipped with, the control module includes：Wind pushing temperature sensor, the first temperature sensor, second temperature sensor, return
Air temperature sensor and control panel；The wind pushing temperature sensor is located in cold passage, for detecting sending for refrigeration module in real time
Air temperature, and it is sent to control panel；First temperature sensor is located in cold-storage device, for detecting phase-change material layers in real time
Temperature value, and be sent to control panel；The second temperature sensor is located in data center, for real-time detector data center
Interior temperature value, and it is sent to control panel；The return air temperature sensor is located in the passage of heat, for detecting return air stream in real time
Temperature value, and be sent to control panel.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721339456.6U CN207395061U (en) | 2017-10-18 | 2017-10-18 | A kind of data center's air-conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721339456.6U CN207395061U (en) | 2017-10-18 | 2017-10-18 | A kind of data center's air-conditioning system |
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| Publication Number | Publication Date |
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| CN207395061U true CN207395061U (en) | 2018-05-22 |
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ID=62328533
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110779172A (en) * | 2019-11-08 | 2020-02-11 | 中国电子工程设计院有限公司 | Method and equipment for diagnosing utilization rate of air conditioner cooling capacity in data machine room |
-
2017
- 2017-10-18 CN CN201721339456.6U patent/CN207395061U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110779172A (en) * | 2019-11-08 | 2020-02-11 | 中国电子工程设计院有限公司 | Method and equipment for diagnosing utilization rate of air conditioner cooling capacity in data machine room |
| CN110779172B (en) * | 2019-11-08 | 2020-12-25 | 中国电子工程设计院有限公司 | Method and equipment for diagnosing utilization rate of air conditioner cooling capacity in data machine room |
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