CN107613726A - Data center cooling system and control method thereof - Google Patents
Data center cooling system and control method thereof Download PDFInfo
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- CN107613726A CN107613726A CN201710787061.0A CN201710787061A CN107613726A CN 107613726 A CN107613726 A CN 107613726A CN 201710787061 A CN201710787061 A CN 201710787061A CN 107613726 A CN107613726 A CN 107613726A
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- 238000001816 cooling Methods 0.000 title claims abstract description 160
- 238000000034 method Methods 0.000 title claims abstract description 30
- 239000000446 fuel Substances 0.000 claims description 80
- 238000007789 sealing Methods 0.000 claims description 35
- 238000001514 detection method Methods 0.000 claims description 11
- 238000010025 steaming Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000005057 refrigeration Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000013632 homeostatic process Effects 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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Abstract
The invention discloses a data center cooling system and a control method thereof, wherein the system comprises: the second-stage oil cooling system is used for cooling the server equipment of the data center cooling system through cold-carrying oil; and the first-stage air cooling system is connected with the second-stage oil cooling system and is used for carrying out heat exchange on cold-carrying oil of the second-stage oil cooling system. The invention solves the problem that the data center in the prior art has server faults caused by local hot spots due to too large heat density of the unit refrigerator, and improves the safety and stability of the data center.
Description
Technical field
The present invention relates to cooling technology field, in particular to a kind of data center cooling system and its control method.
Background technology
With the arriving in big data epoch, far denser data center will progressively substitute low ciphertext data center.However, count at this stage
Air-cooled technology is mainly used according to center cooling system, it is hot inside and outside rack by computer room Special precision air-conditioning reduction computer room temperature
Wind swaps with cold wind, by air circulation, to reduce the temperature of sophisticated electronics.Radiated using data center at this stage
Mode needs to consume a large amount of electric energy, and local hot spot easily occurs, causes electronic failure, and these problems are all in data
Heart cooling system manufacturing enterprise proposes higher requirement with product.
For data center in correlation technique because unit refrigerator heat density is too big, there are hot localised points and cause server failure
The problem of, not yet propose to efficiently solve scheme at present.
The content of the invention
The invention provides a kind of data center cooling system and its control method, at least to solve data in the prior art
There is the problem of hot localised points cause server failure because unit refrigerator heat density is too big in center.
A kind of in order to solve the above technical problems, one side according to embodiments of the present invention, there is provided data center's cooling
System, including：Second level oil cooling system, for being dropped by refrigerating oil to the server apparatus of data center cooling system
Temperature；First order air cooling system, it is connected with second level oil cooling system, for being exchanged heat to the refrigerating oil of second level oil cooling system.
Further, first order air cooling system includes：Evaporator 24, it is connected with second level oil cooling system；Compressor 21, the
One end is connected with the first outlet of evaporator 24, and the second end passes sequentially through condenser 22, electric expansion valve 23 and evaporator 24
First entrance connects.
Further, oil cooling system in the second level includes：One or more racks, sealing container is provided with rack, seal
Refrigerating oil is filled in container, server is immersed in refrigerating oil；Wherein, the first end of one or more racks and evaporator 24
Second entrance is connected, and the second end of one or more racks is connected with the second outlet of evaporator 24.
Further, oil cooling system in the second level includes：Main fuel feeding branch road, wherein, main fuel feeding branch road includes：First oil pump
14, the second end connection of first end and rack；First magnetic valve 15, first end are connected with the second end of the first oil pump 14, and second
End is connected with the second outlet of evaporator 24.
Further, oil cooling system in the second level also includes：Standby fuel feeding branch road, wherein, standby fuel feeding branch road includes：Second
The second end connection of oil pump 16, first end and rack；Second solenoid valve 17, first end are connected with the second end of the second oil pump, the
Two ends are connected with the second outlet of evaporator 24.
Further, oil cooling system in the second level also includes：Oil storage tank 18, main fuel feeding branch road and standby fuel feeding branch road lead to respectively
The second outlet that oil storage tank 18 is crossed with evaporator 24 is connected.
Further, oil cooling system in the second level also includes：First temperature sensor, is arranged in rack, close for detecting
Seal the temperature of container.
Further, oil cooling system in the second level also includes：Check valve 13, the quantity of check valve 13 is corresponding with rack, wherein,
Second end of the first end of check valve 13 and cabinet-type air conditioner connects, the second end of check valve 13 respectively the first end with the first oil pump 15,
The first end connection of second oil pump 16.
Further, oil cooling system in the second level also includes：Flowmeter 19, it is arranged at the first end and evaporator 24 of rack
Between second entrance.
Further, first order air cooling system also includes：Second temperature sensor, be arranged at evaporator 24 first enter
Mouthful, for detecting the temperature of first entrance position；Three-temperature sensor, the first outlet of evaporator 24 is arranged at, connected, used
Temperature in detection first outlet position.
Another aspect according to embodiments of the present invention, there is provided a kind of control method of above-mentioned data center cooling system,
Including：In the case where unit is in the first running status, the stream being located in data center cooling system in second level oil cooling system is detected
The flow information of gauge；According to the flow information of detection, the main confession of the second level oil cooling system of data center cooling system is judged
Whether oily branch road breaks down, wherein, the second level oil cooling system of data center cooling system includes being used for the master for controlling fuel feeding
Fuel feeding branch road and standby fuel feeding branch road；When judged result is that main fuel feeding branch road breaks down, main fuel feeding branch road is closed, and switch
To standby fuel feeding branch road to carry out fuel feeding.
Further, this method also includes：The temperature of sealing container in second level oil cooling system is obtained, wherein, the second level
Oil cooling system includes one or more racks, and sealing container is provided with rack, and refrigerating oil, server leaching are filled in sealing container
Not in refrigerating oil；Main fuel feeding branch road or standby fuel feeding in second level oil cooling system are adjusted according to the temperature of the sealing container of acquisition
The rotating speed of the oil pump of branch road.
Further, main fuel feeding branch road or standby in second level oil cooling system is adjusted according to the temperature of the sealing container of acquisition
The rotating speed of the oil pump of fuel feeding branch road, including：Whether the temperature for the sealing container for judging to obtain is less than the first temperature threshold, if so,
Reduce the rotating speed of the oil pump of main fuel feeding branch road or standby fuel feeding branch road；Whether the temperature for the sealing container for judging to obtain is more than second
Temperature threshold, if so, increasing the rotating speed of the oil pump of main fuel feeding branch road or standby fuel feeding branch road；Wherein, the first temperature threshold is less than
Second temperature threshold value.
Further, this method also includes：Detect the evaporator outlet degree of superheat in first order air cooling system；According to detection
The evaporator outlet degree of superheat, adjust the aperture of electric expansion valve in first order air cooling system.
Further, according to the evaporator outlet degree of superheat of detection, electric expansion valve in first order air cooling system is adjusted
Aperture, including：Obtain evaporator inlet temperature and outlet temperature in first order air cooling system；The evaporator outlet degree of superheat is calculated,
Wherein the evaporator outlet degree of superheat subtracts outlet temperature equal to evaporator inlet temperature；It is more than in the evaporator outlet degree of superheat of calculating
During the first predetermined threshold value, increase the aperture of electric expansion valve, be less than the second predetermined threshold value in the evaporator outlet degree of superheat of calculating
When, reduce the aperture of electric expansion valve.
In the present invention, there is provided a kind of new data center cooling system, including second level oil cooling system and the first order
Air cooling system two subsystems, wherein, the server by the refrigerating oil of second level oil cooling system to data center cooling system
Equipment is cooled, and the refrigerating oil of second level oil cooling system is exchanged heat by first order air cooling system, can be effectively
Solve in the prior art data center because unit refrigerator heat density it is too big, there is the problem of hot localised points cause server failure,
Improve the safety and stability of data center.
Brief description of the drawings
Fig. 1 is a kind of optional structured flowchart of the data center cooling system of the embodiment of the present invention；
Fig. 2 is a kind of optional structural representation of the data center cooling system of the embodiment of the present invention；
Fig. 3 be the embodiment of the present invention data center cooling system in rack a kind of optional structural representation；
Fig. 4 is a kind of optional structured flowchart of the control method of the data center cooling system of the embodiment of the present invention；With
And
Fig. 5 is another optional structured flowchart of the control method of the data center cooling system of the embodiment of the present invention.
Embodiment
Here exemplary embodiment will be illustrated in detail, its example is illustrated in the accompanying drawings.Following description is related to
During accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represent same or analogous key element.Following exemplary embodiment
Described in embodiment do not represent and the consistent all embodiments of the present invention.On the contrary, they be only with it is such as appended
The example of the consistent apparatus and method of some aspects being described in detail in claims, of the invention.
Embodiment 1
A kind of data center cooling system is provided in the present embodiment, and specifically, Fig. 1 shows data center's cooling system
A kind of structured flowchart of system, as shown in figure 1, data center cooling system includes：Second level oil cooling system 10, for passing through refrigerating
Oil cools to the server apparatus of data center cooling system；First order air cooling system 20, with second level oil cooling system 10
Connection, for being exchanged heat to the refrigerating oil of second level oil cooling system.In this cooling system, oil cooled system subordination is (secondary in two level
Level) system, air cooling system belongs to one-level (low-temperature receiver) system.
It is preferably carried out above-mentioned in mode, there is provided a kind of new data center cooling system, including second level oil cooling
System and first order air cooling system two subsystems, wherein, data center is cooled down by the refrigerating oil of second level oil cooling system
The server apparatus of system is cooled, and the refrigerating oil of second level oil cooling system is changed by first order air cooling system
Heat, data center in the prior art can be efficiently solved and, because unit refrigerator heat density is too big, hot localised points occurs and cause to service
The problem of device failure, improve the safety and stability of data center.
In a preferred embodiment in the present embodiment, a kind of the specific of above-mentioned first order air cooling system is also provided
Implementation, specifically, Fig. 2 show a kind of optional structure chart of data center cooling system, as shown in Fig. 2 the first order
Air cooling system includes：Evaporator 24, it is connected with second level oil cooling system；Compressor 21, first end go out with the first of evaporator 24
Mouth connection, the second end passes sequentially through condenser 22, electric expansion valve 23 is connected with the first entrance of evaporator 24.
Above-mentioned first order air cooling system uses compression direct expansion mechanical refrigeration system, implements simply, to work well.
Meanwhile optionally followed as a kind of an alternative it would also be possible to which first order air cooling system is replaced with using natural cooling source cooling tower
Ring, there can be same effect, but such a refrigeration modes can not use when northern temperature is less than zero degree, easily cause system
Freeze.
Preferably, above-mentioned first order air cooling system also includes：Second temperature sensor, be arranged at evaporator 24 first enter
Mouthful, for detecting the temperature of first entrance position；Three-temperature sensor, the first outlet of evaporator 24 is arranged at, connected, used
Temperature in detection first outlet position.By setting second temperature sensor and three-temperature sensor, can obtain correspondingly
Position temperature calculates the evaporator outlet degree of superheat, and then judges whether to need to adjust low-temperature receiver by the evaporator outlet degree of superheat
Temperature, more accurately adjusted.
In another preferred embodiment in the present embodiment, a kind of tool of above-mentioned second level oil cooling system is also provided
Body implementation, specifically, Fig. 2 show a kind of optional structure chart of data center cooling system, as shown in Fig. 2 second
Level oil cooling system includes：One or more racks, sealing container is provided with rack, refrigerating oil, service are filled in sealing container
Device is immersed in refrigerating oil；Wherein, the first end of one or more racks is connected with the second entrance of evaporator 24, one or more
Second end of individual rack is connected with the second outlet of evaporator 24.Fig. 3 shows a kind of optional structural representation of rack, is scheming
In 3,101 be temperature sensor, and for detecting sealing container temperature, 102 be sealing container, and 103 be server apparatus.
In addition, second level oil cooling system also includes：Oil storage tank 18, main fuel feeding branch road and standby fuel feeding branch road, wherein, it is main
Fuel feeding branch road includes：The second end connection of first oil pump 14, first end and rack；First magnetic valve 15, first end and the first oil
The second end connection of pump 14, the second end is connected with the second outlet of evaporator 24.Standby fuel feeding branch road includes：Second oil pump 16,
Second end of first end and rack connects；Second solenoid valve 17, first end are connected with the second end of the second oil pump, and the second end is with steaming
Send out the second outlet connection of device 24.Main fuel feeding branch road and standby fuel feeding branch road pass through the second of oil storage tank 18 and evaporator 24 respectively
Outlet connection.
Wherein it is preferred to above-mentioned second level oil cooling system may be arranged as continuing to supply by oil storage tank gravity circulation
The mode of oil control, it may have same effect, but gravity circulation certainly will will increase the potential energy of oil tank, be unfavorable for package size
Miniaturization.
In above-mentioned preferred scheme, large-scale cold-storage oil tank is configured with second level oil cooling system, from the outflow of cold-storage oil tank
Refrigerating oil two-way, it is all the way main fuel feeding branch road, is connected by corresponding magnetic valve with oil pump, another way is standby fuel feeding branch road,
Using with main oil passage identical arrangement form.When main fuel feeding branch road breaks down, the closed electromagnetic valve of main fuel feeding branch road is standby
Opened with the magnetic valve of fuel feeding branch road.Large-scale cold-storage oil tank plays cushioning effect when the system failure and flow system flow fluctuate, together
When the first order air cooling system failure when, second level oil cooling system because have store oil tank presence and be unlikely to temperature and rise at once.
It is individual in one embodiment in order to realize the optimal control of above-mentioned data center cooling system, also to above-mentioned system
System is optimized, and specifically, second level oil cooling system also includes：First temperature sensor, is arranged in rack, for examining
Survey the temperature of sealing container.By setting the first temperature sensor, the temperature of sealing container in second level oil cooling system can be obtained
Degree, when being controlled, can according to the temperature of the sealing container of acquisition adjust second level oil cooling system in main fuel feeding branch road or
The rotating speed of the oil pump of standby fuel feeding branch road, to realize being precisely controlled for data center cooling system chilling temperature.
It is individual in one embodiment in order to realize the optimal control of above-mentioned data center cooling system, also to above-mentioned system
System is further optimized, and specifically, second level oil cooling system also includes：Flowmeter 19, it is arranged at the first of rack
Between end and the second entrance of evaporator 24.By setting flowmeter 19, the flowmeter in second level oil cooling system can be detected
One of flow information, the basis for estimation whether to be broken down as main fuel feeding branch road, judged result be main fuel feeding branch road hair
During raw failure, main fuel feeding branch road is closed, and switches to standby fuel feeding branch road to carry out fuel feeding, improves the security and stably of system
Property.
Preferably, oil cooling system in the second level also includes：Check valve 13, the quantity of check valve 13 is corresponding with rack, wherein, it is single
The second end connection of first end and cabinet-type air conditioner to valve 13, the second end of check valve 13 first end with the first oil pump 15, the respectively
The first end connection of two oil pumps 16.By setting check valve, the one-way flow of oil circuit can be controlled according to the actual demand of system,
Anti- backflow, ensure the work of the normal table of system.
Embodiment 2
Based on the data center cooling system provided in above-described embodiment 1, provided in the present embodiment 2 in a kind of data
The control method of core cooling system, specifically, Fig. 3 show a kind of optional flow chart of this method, as shown in figure 4, this method
It may comprise steps of S402-S406：
S402, in the case where unit is in the first running status, detects in data center cooling system and be located at second level oil cooled system
The flow information of flowmeter in system；
S404, according to the flow information of detection, judge the main fuel feeding of the second level oil cooling system of data center cooling system
Whether branch road breaks down, wherein, the second level oil cooling system of data center cooling system includes being used for the main confession for controlling fuel feeding
Oily branch road and standby fuel feeding branch road；
S406, when judged result is that main fuel feeding branch road breaks down, main fuel feeding branch road is closed, and switch to standby fuel feeding
Branch road is to carry out fuel feeding.
Wherein it is preferred to the above method also includes：The temperature of sealing container in second level oil cooling system is obtained, wherein, the
Two level oil cooling system includes one or more racks, and sealing container is provided with rack, and refrigerating oil, service are filled in sealing container
Device is immersed in refrigerating oil；Main fuel feeding branch road or standby in second level oil cooling system is adjusted according to the temperature of the sealing container of acquisition
The rotating speed of the oil pump of fuel feeding branch road.
Further, main fuel feeding branch road or standby in second level oil cooling system is adjusted according to the temperature of the sealing container of acquisition
The rotating speed of the oil pump of fuel feeding branch road, including：Whether the temperature for the sealing container for judging to obtain is less than the first temperature threshold, if so,
Reduce the rotating speed of the oil pump of main fuel feeding branch road or standby fuel feeding branch road；Whether the temperature for the sealing container for judging to obtain is more than second
Temperature threshold, if so, increasing the rotating speed of the oil pump of main fuel feeding branch road or standby fuel feeding branch road；Wherein, the first temperature threshold is less than
Second temperature threshold value.
Further, this method also includes：Detect the evaporator outlet degree of superheat in first order air cooling system；According to detection
The evaporator outlet degree of superheat, adjust the aperture of electric expansion valve in first order air cooling system.
Further, according to the evaporator outlet degree of superheat of detection, electric expansion valve in first order air cooling system is adjusted
Aperture, including：Obtain evaporator inlet temperature and outlet temperature in first order air cooling system；The evaporator outlet degree of superheat is calculated,
Wherein the evaporator outlet degree of superheat subtracts outlet temperature equal to evaporator inlet temperature；It is more than in the evaporator outlet degree of superheat of calculating
During the first predetermined threshold value, increase the aperture of electric expansion valve, be less than the second predetermined threshold value in the evaporator outlet degree of superheat of calculating
When, reduce the aperture of electric expansion valve.
The above method is described further with reference to Fig. 2 and Fig. 5, to be better understood from this method：
In system shown in Fig. 2, system is divided into two parts, a part is air cooling system, and gas coolant suction refrigeration is pressed
The boil down to high temperature and high pressure gas of contracting machine 21, flow through that condenser 22 is condensed into high-temperature pressure liquid, liquid passes through electric expansion valve 23
Evaporator 24 is flowed into afterwards, and heat is absorbed in 24 evaporators and is then return to compressor 21, completes kind of refrigeration cycle.Another part is oil
Cooling system, the refrigerating oil in oil storage tank 18 are sent into rack 10-13 by oil pump, refrigerating oil and the high-grade oil for absorbing server
Change into high temperature oil after carrying out caloic exchange, high temperature oil outflow rack enters evaporator 24, in 24 with after refrigerant heat exchanger
Complete refrigerating circulation.
When carrying out intelligent control, following control strategy can be used：Submodule is adjusted comprising primary module and oil temperature
Control main body.Primary module carries out signal sense to magnetic valve 15,17, electric expansion valve 14,16, flowmeter 19, temperature-sensitive bag 25-26
Survey, and send signal so that each intelligent element action.Wherein frequency conversion oil pump 14 connects to form main fuel feeding branch road with magnetic valve 15,
Frequency conversion oil pump 16 connects to form standby fuel feeding branch road with magnetic valve 17, and main fuel feeding branch road is connected in parallel on stream with standby fuel feeding leg parallel
Among the system of road.Flowmeter 19 is connected in oil cooling system, for the data on flows in acquisition system.Evaporator inlet-outlet is distinguished
Temperature-sensitive bag 25,26 is set, the temperature difference (degree of superheat) collected the foundation whether enough as low-temperature receiver ability.Oil temperature adjusts submodule
Oil temperature in rack is detected by temperature sensor, and sends signal control oil pump frequency converter to adjust the rotating speed of oil pump 16 so that oil
The internal circulating load of cooling system changes to adjust inlet oil temperature, and wherein oil temperature sensor 13 is immersed in liquid, and the liquid can be ore deposit
Thing iknsulating liquid.
Specific control mode is as shown in Figure 5：Unit enters steady operational status, if primary module detects oil by flowmeter
Refrigerating flow system flow is zero, then judges that oil pump 14 breaks down, and be concurrently out of order notice, closes magnetic valve 15, meanwhile, primary module
Signal is sent, magnetic valve 17 is opened, and electricity operation, refrigerating oil maintain oil circulation by standby oil supply system on oil pump 16.If
Flowmeter is not zero, and primary module passes through temperature sensor and senses sealing container fluid temperature T1, it is assumed that a≤T1≤b, then unit is being just
Often operation；Assuming that T1 ＞ b, illustrate high oil temperature, primary module is signaled to submodule plate, increases the rotating speed of frequency conversion oil pump；It is false
If T1 ＜ a, illustrate that oil temperature is too low, primary module sends signal, reduces the rotating speed of frequency conversion oil pump.
To avoid submodule from adjusting oil temperature change too greatly, primary module plate is arranged on evaporator temperature-sensitive Bao Wen by sensing
Spend T3, export temperature-sensitive bag temperature T4 difference DELTAs T (the evaporator outlet degree of superheat) come judge whether to need adjust sink temperature.
Assuming that Δ T ＞ d, then illustrate that the degree of superheat is too big, primary module plate sends signal increase electric expansion valve step number, that is, increases
The aperture of expansion valve, refrigerant circulation quantitative change is big, and then improves the heat exchange amount of evaporator；Assuming that Δ T ＜ c, then illustrate the degree of superheat
Too small, primary module plate sends signal and reduces electric expansion valve step number, that is, reduces the aperture of valve, and circulating mass of refrigerant diminishes, and then
Reduce the heat exchange amount of evaporator.
After electronic expansion valve events are completed, primary module plate senses sealing container oil temperature again, this loop control process
Referred to as intelligent control process.The change procedure of oil temperature is homeostasis process in sealing container.
Embodiment 3
Based on the control method of the data center cooling system provided in above-described embodiment 2, provided in the present embodiment 3
A kind of computer-readable recording medium, computer-readable recording medium storage have one or more program, it is one or
Multiple programs can be by one or more computing device, to realize the control of the data center cooling system in above-described embodiment 2
Method processed.
Those skilled in the art will readily occur to the present invention its after considering specification and putting into practice invention disclosed herein
Its embodiment.The application be intended to the present invention any modification, purposes or adaptations, these modifications, purposes or
Person's adaptations follow the general principle of the present invention and the common knowledge in the art do not invented including the present invention
Or conventional techniques.Description and embodiments are considered only as exemplary, and true scope and spirit of the invention are by following
Claim is pointed out.
It should be appreciated that the invention is not limited in the precision architecture for being described above and being shown in the drawings, and
And various modifications and changes can be being carried out without departing from the scope.The scope of the present invention is only limited by appended claim.
Claims (15)
- A kind of 1. data center cooling system, it is characterised in that including：Second level oil cooling system, for being cooled by refrigerating oil to the server apparatus of data center cooling system；First order air cooling system, it is connected with the second level oil cooling system, for the load to the second level oil cooling system Cold oil is exchanged heat.
- 2. data center cooling system according to claim 1, it is characterised in that the first order air cooling system includes：Evaporator (24), it is connected with the second level oil cooling system；Compressor (21), first end are connected with the first outlet of the evaporator (24), the second end pass sequentially through condenser (22), Electric expansion valve (23) is connected with the first entrance of the evaporator (24).
- 3. data center cooling system according to claim 1 or 2, it is characterised in that the second level oil cooling system bag Include：One or more racks, sealing container is provided with the rack, the refrigerating oil is filled in the sealing container, it is described Server is immersed in the refrigerating oil；Wherein, the first end of one or more of racks is connected with the second entrance of the evaporator (24), it is one or Second end of multiple racks is connected with the second outlet of the evaporator (24).
- 4. data center cooling system according to claim 3, it is characterised in that the second level oil cooling system includes： Main fuel feeding branch road, wherein, the main fuel feeding branch road includes：First oil pump (14), first end are connected with the second end of the rack；First magnetic valve (15), first end are connected with the second end of first oil pump (14), the second end and the evaporator (24) second outlet connection.
- 5. data center cooling system according to claim 4, it is characterised in that the second level oil cooling system is also wrapped Include：Standby fuel feeding branch road, wherein, the standby fuel feeding branch road includes：Second oil pump (16), first end are connected with the second end of the rack；Second solenoid valve (17), first end are connected with the second end of second oil pump, the second end and the evaporator (24) Second outlet connects.
- 6. data center cooling system according to claim 5, it is characterised in that the second level oil cooling system is also wrapped Include：Oil storage tank (18), the main fuel feeding branch road and the standby fuel feeding branch road pass through the oil storage tank (18) and the steaming respectively Send out the second outlet connection of device (24).
- 7. data center cooling system according to claim 3, it is characterised in that the second level oil cooling system is also wrapped Include：First temperature sensor, it is arranged in the rack, for detecting the temperature of the sealing container.
- 8. data center cooling system according to claim 3, it is characterised in that the second level oil cooling system is also wrapped Include：Check valve (13), the quantity of the check valve (13) is corresponding with the rack, wherein, the first end of the check valve (13) Be connected with the second end of the cabinet-type air conditioner, the second end of the check valve (13) respectively the first end with first oil pump (15), The first end connection of second oil pump (16).
- 9. data center cooling system according to claim 3, it is characterised in that the second level oil cooling system is also wrapped Include：Flowmeter (19), it is arranged between the first end of the rack and the second entrance of the evaporator (24).
- 10. data center cooling system according to claim 2, it is characterised in that the first order air cooling system also wraps Include：Second temperature sensor, the first entrance of the evaporator (24) is arranged at, for detecting the first entrance position Temperature；Three-temperature sensor, the first outlet of the evaporator (24) is arranged at, connected, for detecting the first outlet position The temperature put.
- A kind of 11. control method of data center cooling system as described in claim 1-10, it is characterised in that including：In the case where unit is in the first running status, detects and be located at the second level oil cooling system in the data center cooling system In flowmeter flow information；According to the flow information of detection, the main fuel feeding branch of the second level oil cooling system of the data center cooling system is judged Whether road breaks down, wherein, the second level oil cooling system of the data center cooling system includes being used for the master for controlling fuel feeding Fuel feeding branch road and standby fuel feeding branch road；When judged result is that the main fuel feeding branch road breaks down, the main fuel feeding branch road is closed, and switch to described standby Fuel feeding branch road is to carry out fuel feeding.
- 12. according to the method for claim 11, it is characterised in that also include：Obtain the temperature of sealing container in the second level oil cooling system, wherein, the second level oil cooling system include one or Multiple racks, sealing container is provided with the rack, the refrigerating oil, the server submergence are filled in the sealing container In the refrigerating oil；Main fuel feeding branch road or described described in the second level oil cooling system is adjusted according to the temperature of the sealing container of acquisition The rotating speed of the oil pump of standby fuel feeding branch road.
- 13. according to the method for claim 12, it is characterised in that the temperature of the sealing container according to acquisition is adjusted The rotating speed of the oil pump of main fuel feeding branch road or the standby fuel feeding branch road described in the whole second level oil cooling system, including：Whether the temperature for the sealing container for judging to obtain is less than the first temperature threshold, if so, reducing the main fuel feeding branch road Or the rotating speed of the oil pump of the standby fuel feeding branch road；Whether the temperature for the sealing container for judging to obtain is more than second temperature threshold value, if so, the increase main fuel feeding branch road Or the rotating speed of the oil pump of the standby fuel feeding branch road；Wherein, first temperature threshold is less than the second temperature threshold value.
- 14. the method according to claim 11 or 12, it is characterised in that also include：Detect the evaporator outlet degree of superheat in the first order air cooling system；According to the evaporator outlet degree of superheat of detection, the aperture of electric expansion valve in first order air cooling system is adjusted.
- 15. according to the method for claim 14, it is characterised in that described to be overheated according to the evaporator outlet of detection Degree, the aperture of electric expansion valve in first order air cooling system is adjusted, including：Obtain evaporator inlet temperature and outlet temperature in the first order air cooling system；The evaporator outlet degree of superheat is calculated, wherein the evaporator outlet degree of superheat subtracts outlet equal to the evaporator inlet temperature Temperature；When the evaporator outlet degree of superheat of calculating is more than the first predetermined threshold value, increase the aperture of the electric expansion valve, When the evaporator outlet degree of superheat of calculating is less than the second predetermined threshold value, reduce the aperture of the electric expansion valve.
Priority Applications (1)
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