CN204157201U - A kind of intermediate water loop server cabinet cooling system - Google Patents
A kind of intermediate water loop server cabinet cooling system Download PDFInfo
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- CN204157201U CN204157201U CN201420539785.5U CN201420539785U CN204157201U CN 204157201 U CN204157201 U CN 204157201U CN 201420539785 U CN201420539785 U CN 201420539785U CN 204157201 U CN204157201 U CN 204157201U
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Abstract
The utility model discloses a kind of intermediate water loop server cabinet cooling system, the mode of liquid conductive is adopted to dispel the heat, cooling system comprises internal circulation system, external circulating system and control system, first, Inner eycle loop refrigerating medium absorbs the heat radiation of server core parts by server heat pipe assembly, then Inner eycle loop refrigerating medium flow to Intermediate Heat Exchanger and the heat exchange of outer circulation stream is dispelled the heat, outer circulation stream distributes heat to external environment by cooling column after absorbing heat again, achieve natural heat dissipation process, accurate control and the energy-saving run of cooling system temperature can be realized by control system.The utility model is without the need to any compressor refrigeration system, the nature type of cooling is adopted to realize the efficiently radiates heat of server completely, energy-saving effect highly significant, simultaneously, server chips adopts the indirect cooling scheme of heat pipe, water directly can not enter server internal, compares, can improve the fail safe of server with other direct liquid cooling schemes.
Description
Technical field
The utility model relates to calculator room equipment cooling system technical field, particularly a kind of intermediate water loop server cabinet cooling system.
Background technology
When the equipment of machine room and base station runs, caloric value is huge, and for maintaining the normal working temperature of equipment, machine room needs configuration relevant device whole year operation to dispel the heat to calculator room equipment.Along with the develop rapidly of information industry, machine room and base station construction speed speed, and the quantity of server increases considerably, and its power consumption and heat dissipation capacity are also in continuous increase, the demand of machine room heat dissipation equipment also increases thereupon, and its energy saving is more and more subject to the extensive concern of manufacturer and user.
Traditional machine room cooling method reduces air conditioner in machine room temperature, and then make Cryogenic air enter server, with thermal component forced-convection heat transfer, and heat when takeaway service device runs.During actual motion, the cpu chip own temperature mainly treating thermal component in server only need remain between 60 ~ 80 DEG C, but because air ratio thermal capacitance, atmospheric density and forced-convection heat transfer coefficients comparison are low, as adopted above-mentioned air cooled mode, can only guarantee enough heat dissipation capacities by the temperature reducing air, according to the recommendation of GB, machine room air temperature should be 24 DEG C, and want the annual indoor temperature keeping 24 DEG C, must be realized by mechanical refrigeration mode.General machine room employing compressor refrigeration system whole year operation, produces cryogenic freezing water or low-temperature refrigerant carrys out cooling-air; In addition, air-conditioning also needs configuration blower fan to force machine room air flowing heat radiation, and configuration heating, damping device keep the constant temperature and humidity of machine room.According to statistics, under this mode, air conditioning energy consumption accounts for 35% ~ 45% of machine room total energy consumption, and wherein 60% ~ 70% electricity is consumed by compressor.Also outdoor cold source comprises outdoor new wind, chilled water system cools naturally to have part air-conditioner set make use of, this cooling method is mainly through reducing the running time of compressor, reach energy-conservation object, but the power consumption of miscellaneous part can not reduce, and during summer high temperature, still need compressor cooling, energy-saving effect when adopting air-conditioning naturally to cool approximately can reach about 50%, and power consumption is still larger; In addition, adopt the cooling of air conditioning mode, air-conditioning equipment more complicated, needs various mechanical device and rotating machinery, and initial cost is large, safeguards cumbersome.
In addition, along with the development of information technology, the arithmetic speed of server is accelerated, and server radiating amount and machine room heat radiation density also increase thereupon, and the mode limitation relying on large quantity of air to carry out dispelling the heat is obvious all the more.Can predict in the near future, from energy-conservation and heat radiation two angles, air cooled mode has all been difficult to the radiating requirements meeting server.
Therefore, prior art has yet to be improved and developed.
Summary of the invention
The purpose of this utility model is to provide a kind of intermediate water loop server cabinet cooling system, and be intended to solve existing air-conditioning and utilize consume energy large or air-conditioner set of pure compression mechanism cold to utilize outdoor cold source refrigeration plant complicated, initial cost is large, the problem of troublesome maintenance.
The technical solution of the utility model is as follows: a kind of intermediate water loop server cabinet cooling system, wherein, comprises server heat pipe assembly, internal circulation system, Intermediate Heat Exchanger, external circulating system and control system;
Described server heat pipe assembly comprises heat pipe evaporator and heat pipe condenser, and heat pipe evaporator is connected by connecting line with heat pipe condenser; Server heat pipe assembly inner charging refrigerant is gas under cold-producing medium normal temperature and pressure; Directly and server radiating chip transmission of heat by contact, heat pipe condenser and internal circulation system carry out heat exchange for one end of described heat pipe evaporator;
Described internal circulation system comprises Inner eycle water pump, Inner eycle water pump is connected by inner loop pipeline with Intermediate Heat Exchanger, Inner eycle water pump, Intermediate Heat Exchanger and server heat pipe assembly radiating end are connected to form internal circulation system loop by inner loop pipeline, Inner eycle loop refrigerating medium is filled in internal circulation system loop, Inner eycle water pump provides the Inner eycle loop refrigerating medium in power drive inner loop pipeline to flow in internal circulation system loop, and Inner eycle loop refrigerating medium and heat pipe condenser carry out heat exchange;
Described external circulating system comprises cooling column, water tank and outer circulation water pump; Cooling column and water tank, water tank and outer circulation water pump, outer circulation water pump and Intermediate Heat Exchanger, coupled together by external circulation line between Intermediate Heat Exchanger and cooling column and form external circulating system loop, fill outer circulation fluid in external circulating system loop, outer circulation water pump provides the fluid in power drive pipeline to flow;
Described control system comprises controller, Inner eycle server inflow temperature transducer, Inner eycle server leaving water temperature sensors, outer circulation cooling tower leaving water temperature sensors and outer circulation cooling tower leaving water temperature sensors, Inner eycle server inflow temperature sensor setting is between Inner eycle water pump and server heat pipe assembly, and Inner eycle server leaving water temperature sensors is arranged between server heat pipe assembly and Intermediate Heat Exchanger; Outer circulation cooling tower inflow temperature sensor setting is outside between circulating water pump and Intermediate Heat Exchanger, and outer circulation cooling tower leaving water temperature sensors is arranged between Intermediate Heat Exchanger and cooling column; Described Inner eycle server inflow temperature transducer, Inner eycle server leaving water temperature sensors, outer circulation cooling tower leaving water temperature sensors and outer circulation cooling tower leaving water temperature sensors are all electrically connected with controller; Described Inner eycle water pump, cooling column are all connected with controller with outer circulation water pump.
Described intermediate water loop server cabinet cooling system, wherein, described server heat pipe assembly arranges multiple, is connected in parallel between multiple server heat pipe assembly.
Described intermediate water loop server cabinet cooling system, wherein, described server heat pipe assembly is arranged on outside server cabinet.
Described intermediate water loop server cabinet cooling system, wherein, described server heat pipe assembly is placed in rack together with server.
Described intermediate water loop server cabinet cooling system, wherein, arranges waterproof bulkhead in described rack, carries out protection isolation to the two ends of each server heat pipe assembly.
Described intermediate water loop server cabinet cooling system, wherein, the pipeline of described Inner eycle pumping for water pump end draws branch road water pipe, and constant pressure water compensation apparatus is installed on branch road water pipe top, and described constant pressure water compensation apparatus supplements pure water to internal circulation system and regulates the pressure of pipeline.
Described intermediate water loop server cabinet cooling system, wherein, described cooling column is open cooling column or closed cooling column; Be provided with blower fan and feeding spraying pump in cooling column, carry out wind cooling temperature lowering and spraying cooling process for external circulating fluid.
Described intermediate water loop server cabinet cooling system, wherein, described Inner eycle loop refrigerating medium and outer circulation fluid adopt water or ethylene glycol solution.
Described intermediate water loop server cabinet cooling system, wherein, described Inner eycle loop refrigerating medium and outer circulation fluid adopt antifreeze ethylene glycol solution.
Described intermediate water loop server cabinet cooling system, wherein, described Intermediate Heat Exchanger is plate heat exchanger or tube heat exchanger or double pipe heat exchanger; Intermediate Heat Exchanger one side liquid is outer circulation fluid, and opposite side fluid is Inner eycle loop refrigerating medium.
The beneficial effects of the utility model: the utility model is by providing a kind of intermediate water loop server cabinet cooling system, directly utilize the circulation of liquid, by the heat conduction of server chips to outdoor, and owing to have employed the good liquid cooling refrigeration of specific heat capacity, density and convective heat transfer effect, only the liquid of about 35 ~ 50 DEG C need be utilized to be server radiating, the refrigeration working medium of such high temperature is in each season, can be obtained by the nature type of cooling, replace the existing air cooling system utilizing compressor refrigeration system to freeze; Adopt heat pipe heat exchanging parts indirectly to cool between server chips and outer liquid cooling system simultaneously, water can be avoided directly to enter server internal, significantly reduce because water system leaks the probability causing server to damage.
Accompanying drawing explanation
Fig. 1 is the structural representation of intermediate water loop server cabinet cooling system in the utility model.
Fig. 2 is the flow chart of steps of intermediate water loop server cabinet cooling system control method in the utility model.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearly, clearly, referring to the accompanying drawing embodiment that develops simultaneously, the utility model is further described.
The intermediate water loop server cabinet cooling system that the utility model provides, take a brand-new mode to realize the heat radiation of machine room, adopt the heat conducting mode of liquid-liquid, directly the heat that machine room thermal source distributes is delivered to outdoor, replace the mode of regular air convective heat transfer (because the heat capacity ratio of air itself is lower, the heat exchange coefficient of cross-ventilation heat exchange is very low, during by air as intermediate medium, need a large amount of air, and air themperature is sufficiently low, so must expend the flowing of more power drive air and adopt the compressor mode of high energy consumption to freeze), the utility model adopts liquid conductive mode, the thermal capacitance of liquid is several times of air, the power ratio that liquid driven consumes is less, in addition, liquid flow forced heat-exchanging coefficients comparison is high, fluid temperature only need reach the heat dissipation capacity demand that 35 ~ 50 DEG C can meet server: carry out radiating and cooling as server chips temperature reaches 65 DEG C, and Inner eycle fluid temperature only need reach 35 ~ 40 DEG C, outer circulation fluid temperature only need reach 30 ~ 35 DEG C can make server chips reach radiating and cooling requirement, and the chilled water of 30 ~ 35 DEG C (outer circulation fluid temperature) can directly rely on cooling tower to produce, server radiating forms natural temperature gradient, heat conducts to low-temperature components from high temperature automatically, without the need to being freezed by external force, so when adopting the mode of liquid thermal conductivity, CLF (Cooling Load Factor, refrigeration load coefficient, be defined as the ratio of refrigeration plant power consumption and information technoloy equipment power consumption in data center) easily can accomplish less than 0.1, and adopt existing common air radiating mode to dispel the heat to server chips, server chips temperature reaches 65 DEG C when carrying out radiating and cooling, machine room air themperature needs to reach 24 DEG C, chilled water temperature needs to reach 7 ~ 12 DEG C just can make server chips reach radiating and cooling requirement, there is provided the whole year cold water of 7 ~ 12 DEG C that mechanical external force effect must be relied on to realize, so when adopting cooling air mode, the power consumption of cooling system is very large, and CLF is generally between 0.3 ~ 0.8.And the structure of this intermediate water loop server cabinet cooling system is simple, mechanical transmission component only has several water pump, and the expense of initial cost, operation, maintenance is all lower.
For making the purpose of this utility model, technical scheme and effect clearly, clearly, enumerating embodiment referring to accompanying drawing 1 and the utility model is further described.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1, this intermediate water loop server cabinet cooling system comprises server heat pipe assembly 100, internal circulation system 200, Intermediate Heat Exchanger 300, external circulating system 400 and control system 500, cold-producing medium in described server heat pipe assembly 100 and server chips carry out heat exchange, server chips is lowered the temperature, and cold-producing medium heats up; Inner eycle loop refrigerating medium in cold-producing medium after intensification and internal circulation system 200 carries out heat exchange, and cold-producing medium is lowered the temperature, and Inner eycle loop refrigerating medium heats up; Inner eycle loop refrigerating medium after intensification and the outer circulation fluid in external circulating system 400 go out to carry out heat exchange at Intermediate Heat Exchanger 300, Inner eycle loop refrigerating medium is lowered the temperature, outer circulation fluid heats up, outer circulation fluid returns cooling in external circulating system 400 again, so far, the temperature-fall period of server chips is completed.
Described server heat pipe assembly 100 comprises heat pipe evaporator and heat pipe condenser, and heat pipe evaporator is connected by connecting line with heat pipe condenser; Server heat pipe assembly 100 inner charging refrigerant is gas under cold-producing medium normal temperature and pressure; Directly and server radiating chip transmission of heat by contact, heat pipe condenser and Inner eycle loop refrigerating medium carry out heat exchange for one end of described heat pipe evaporator; Described server heat pipe assembly 100 can be placed in rack together with server, is also placed on outside rack; Described server heat pipe assembly 100 arranges multiple, is connected in parallel between multiple server heat pipe assembly 100.
Owing to having installed various electronic devices and components in server, electronic devices and components are damaged for preventing the Inner eycle loop refrigerating medium of internal circulation system 200 from leaking, in rack, waterproof bulkhead is set, protection isolation is carried out to the two ends of each server heat pipe assembly 100, and the inner charging refrigerant of server heat pipe assembly 100, even if occur to leak and also can become gas at once, harm can not be formed to electric component.
Described internal circulation system 200 comprises Inner eycle water pump 210, Inner eycle water pump 210 is connected by inner loop pipeline with Intermediate Heat Exchanger 300, Inner eycle water pump 210, Intermediate Heat Exchanger 300 and server heat pipe assembly 100 radiating end are connected to form internal circulation system loop by inner loop pipeline, fill Inner eycle loop refrigerating medium in internal circulation system loop, Inner eycle water pump 210 provides the Inner eycle loop refrigerating medium in power drive inner loop pipeline to flow in internal circulation system loop; Described Inner eycle water pump 210 is connected with control system 500.
Described Inner eycle water pump 210 draw water end pipeline on draw branch road water pipe, constant pressure water compensation apparatus 220 is installed on branch road water pipe top, and described constant pressure water compensation apparatus 220 supplements pure water and regulate the pressure of pipeline to internal circulation system 200.The position of described Inner eycle water pump 210 and Intermediate Heat Exchanger 300 can exchange, and namely Inner eycle water pump 210 is arranged on the outlet pipeline of Intermediate Heat Exchanger 300.
Described external circulating system 400 comprises cooling column 410, water tank 420 and outer circulation water pump 430; Cooling column 410 and water tank 420, water tank 420 and outer circulation water pump 430, outer circulation water pump 430 and Intermediate Heat Exchanger 300, coupled together by external circulation line between Intermediate Heat Exchanger 300 and cooling column 410 and form external circulating system loop, fill outer circulation fluid in external circulating system loop, outer circulation water pump 430 provides the fluid in power drive pipeline to flow; Described cooling column 410 is all connected with control system 500 with outer circulation water pump 430.
Described cooling column 410 is open cooling column or closed cooling column.Be provided with blower fan and feeding spraying pump in cooling column 410, carry out wind cooling temperature lowering and spraying cooling process for external circulating fluid.
Described water tank 420 is placed on the outlet pipeline of cooling column 410, and in the winter time when operation or underrun, retainings a large amount of in water tank provides enough thermal capacity, can by the temperature in the regulating guarantee water tank 420 to cooling column 410 operation in setting range.
The position of described outer circulation water pump 430 and Intermediate Heat Exchanger 300 can exchange, and namely outer circulation water pump 430 is arranged on the inlet pipeline of Intermediate Heat Exchanger 300.
Described Inner eycle loop refrigerating medium and outer circulation fluid are water or ethylene glycol solution or other refrigerating mediums.In the occasion of winter conditions temperature lower than 0 DEG C, described Inner eycle loop refrigerating medium and outer circulation fluid should adopt ethylene glycol solution or other anti-icing fluid.
Described Intermediate Heat Exchanger 300 can be plate heat exchanger or tube heat exchanger or double pipe heat exchanger or other liquid liquid heat transmission equipments, and Intermediate Heat Exchanger 300 1 side liquid is outer circulation fluid, and Intermediate Heat Exchanger 300 opposite side fluid is Inner eycle loop refrigerating medium.
Described control system 500 comprises controller 510, Inner eycle server inflow temperature transducer 520, Inner eycle server leaving water temperature sensors 530, outer circulation cooling tower leaving water temperature sensors and outer circulation cooling tower leaving water temperature sensors, Inner eycle server inflow temperature transducer 520 is arranged between Inner eycle water pump 210 and server heat pipe assembly 100, and Inner eycle server leaving water temperature sensors 530 is arranged between server heat pipe assembly 100 and Intermediate Heat Exchanger 300; Outer circulation cooling tower inflow temperature sensor setting is outside between circulating water pump 430 and Intermediate Heat Exchanger 300, and outer circulation cooling tower leaving water temperature sensors is arranged between Intermediate Heat Exchanger 300 and cooling column 410; Described Inner eycle server inflow temperature transducer 520, Inner eycle server leaving water temperature sensors 530, outer circulation cooling tower leaving water temperature sensors and outer circulation cooling tower leaving water temperature sensors are all electrically connected with controller 510; Described Inner eycle water pump 210, cooling column 410 are all connected with controller 510 with outer circulation water pump 430.
Described Inner eycle water pump 210 adopts fixed frequency or variable frequency control to run, and outer circulation water pump 430 adopts frequently fixed or variable frequency control operation.
When practical application, the Intermediate Heat Exchanger 300 that cooling column 410 can be connected in parallel mutually to multiple stage simultaneously provides the outer circulation fluid through cooling, and an Intermediate Heat Exchanger 300 provide the Inner eycle loop refrigerating medium through cooling to carry out cooling down to equipment cabinet server also can to multiple equipment cabinet server be connected in parallel mutually simultaneously.
Enumerate concrete operating mode when specific embodiment describes this intermediate water loop server cabinet operating heat radiation system in detail below, should be clear and definite, this operating mode is representational operating mode in multiple running status, the temperature of server radiating chip is about 65 DEG C, by the efficient heat transfer of server heat pipe assembly 100, the radiating end temperature of server heat pipe assembly 100 reaches 50 DEG C, radiating end and Inner eycle loop refrigerating medium carry out heat exchange, Inner eycle loop refrigerant temperature is 35 DEG C, after drawing the heat of server heat pipe assembly 100 radiating end, Inner eycle loop refrigerant temperature rises to 40 DEG C, Inner eycle water pump 210 and drive under, the Inner eycle loop refrigerating medium of 40 DEG C gets back to Intermediate Heat Exchanger 300, heat exchange is carried out with outer circulation fluid, the heat release of Inner eycle loop refrigerating medium, after temperature is reduced to 35 DEG C from 40 DEG C, the radiating end that the Inner eycle loop refrigerating medium of low temperature continues to get back to server heat pipe assembly 100 absorbs heat, form Inner eycle operating loop, outer circulation fluid absorbs the heat that Inner eycle loop refrigerating medium is discharged when Intermediate Heat Exchanger 300, temperature rises to 35 DEG C from 30 DEG C, flow back to cooling column 410 under circulating water pump 430 active force outside to dispel the heat, outer circulation fluid temperature (F.T.) is reduced to after 30 DEG C, continue to flow to Intermediate Heat Exchanger 300 and carry out heat exchange, form outer circulation operating loop.
As shown in Figure 2, a kind of control method of intermediate water loop server cabinet cooling system as described above, specifically comprises the following steps:
Steps A 00: controller 510 judges that Inner eycle water pump 210 and outer circulation water pump 430 adopt frequently fixed or variable frequency control operation, if when Inner eycle water pump 210 and outer circulation water pump 430 all adopt fixed-frequency control to run, performs step B10-B20; If Inner eycle water pump 210 adopts fixed-frequency control to run, when outer circulation water pump 430 adopts variable frequency control to run, perform step C10-C60; If Inner eycle water pump 210 adopts variable frequency control to run, when outer circulation water pump 430 adopts fixed-frequency control to run, perform step D10-step D20; If when Inner eycle water pump 210 and outer circulation water pump 430 all adopt variable frequency control to run, perform step e 10-step e 60;
Step B10: the inflow temperature T1 being detected server by Inner eycle server inflow temperature transducer 520 in real time, is converted into the signal of telecommunication and feeds back to controller 510;
Step B20: controller 510 regulates the blower fan of cooling column 410 or the rotating speed/frequency of feeding spraying pump according to T1, makes T1 remain in accuracy rating (as ± 1 DEG C), to meet the heat radiation needs of server;
Step C10: the inflow temperature T1 being detected server by Inner eycle server inflow temperature transducer 520 in real time, is converted into the signal of telecommunication and feeds back to controller 510;
Step C20: controller 510 judges whether the frequency of outer circulation water pump 430 is adjusted to minimum, is, performs step C30; No, perform step C40;
Step C30: controller 510 judges T1 whether in the accuracy rating of setting, is, performs step C50; No, perform step C60;
Step C50: controller 510 controls to keep the frequency of outer circulation water pump 430 to be in minimum operation frequency, makes T1 remain in accuracy rating (as ± 1 DEG C), to meet the heat radiation needs of server;
Step C60: controller 510 controls to keep the frequency of outer circulation water pump 430 to be in minimum operation frequency, regulate the blower fan of cooling column 410 or the rotating speed/frequency of feeding spraying pump simultaneously, T1 is made to remain in accuracy rating (as ± 1 DEG C), to meet the heat radiation needs of server;
Step C40: the frequency regulating outer circulation water pump 430 according to T1, makes T1 remain in accuracy rating (as ± 1 DEG C), to meet the heat radiation needs of server, reduces the power consumption energy-saving run of outer circulation water pump 430 simultaneously;
Step D10: the inflow temperature T1 being detected server by Inner eycle server inflow temperature transducer 520 in real time, detected the leaving water temperature T2 of server by Inner eycle server leaving water temperature sensors 530 in real time, be converted into the signal of telecommunication and feed back to controller 510;
Step D20: controller 510 regulates the blower fan of cooling column 410 or the rotating speed/frequency of feeding spraying pump according to T1, makes T1 remain in accuracy rating (as ± 1 DEG C), to meet the heat radiation needs of server; Controller 510 regulates the frequency of Inner eycle water pump 210 simultaneously according to the difference of (T2-T1), make the difference of (T2-T1) remain in accuracy rating (as ± 1 DEG C), to reach the object of Inner eycle water pump 210 energy-saving run.
Step e 10: the inflow temperature T1 being detected server by Inner eycle server inflow temperature transducer 520 in real time, is detected the leaving water temperature T2 of server in real time, is converted into the signal of telecommunication and feeds back to controller 510 by Inner eycle server leaving water temperature sensors 530;
Step e 20: controller 510 judges whether the frequency of outer circulation water pump 430 is adjusted to minimum, is, performs step e 30; No, perform step e 40;
Step e 30: controller 510 judges that whether T1 is lower than the accuracy rating set, and is perform step e 50; No, perform step e 60;
Step e 50: controller 510 controls to keep the frequency of outer circulation water pump 430 to be in minimum operation frequency, makes T1 remain in accuracy rating (as ± 1 DEG C), to meet the heat radiation needs of server; Controller 510 regulates the frequency of Inner eycle water pump 210 simultaneously according to the difference of (T2-T1), make the difference of (T2-T1) remain in accuracy rating (as ± 1 DEG C), to reach the object of Inner eycle water pump 210 energy-saving run;
Step e 60: controller 510 controls to keep the frequency of outer circulation water pump 430 to be in minimum operation frequency, regulate the blower fan of cooling column 410 or the rotating speed/frequency of feeding spraying pump simultaneously, T1 is made to remain in accuracy rating (as ± 1 DEG C), to meet the heat radiation needs of server; Controller 510 regulates the frequency of Inner eycle water pump 210 simultaneously according to the difference of (T2-T1), make the difference of (T2-T1) remain in accuracy rating (as ± 1 DEG C), to reach the object of Inner eycle water pump 210 energy-saving run;
Step e 40: controller 510 regulates the frequency of outer circulation water pump 430 according to T1, makes T1 remain in accuracy rating (as ± 1 DEG C), to meet the heat radiation needs of server, reduces the power consumption energy-saving run of outer circulation water pump 430 simultaneously; Controller 510 regulates the frequency of Inner eycle water pump 210 simultaneously according to the difference of (T2-T1), make the difference of (T2-T1) remain in accuracy rating (as ± 1 DEG C), to reach the object of Inner eycle water pump 210 energy-saving run.
During operation, circulated by the refrigerating medium of internal circulation system 200, external circulating system 400, carry out heat transfer free convection, the heat that server core CPU produces constantly is spread in environment, by the inflow temperature of the accurate Control Server of control system 500, or regulate the rotating speed of inner-outer circulation water pump 210 to reach the object of energy-saving run.
This intermediate water loop server cabinet cooling system directly utilizes the circulation of liquid, by the heat conduction of server chips to outdoor, and owing to have employed the good liquid cooling refrigeration of specific heat capacity, density and convective heat transfer effect, only the liquid of about 35 ~ 50 DEG C need be utilized to be server radiating, the refrigeration working medium of such high temperature is in each season, can be obtained by the nature type of cooling, replace the existing air cooling system utilizing compressor refrigeration system to freeze; Adopt heat pipe heat exchanging parts indirectly to cool between server chips and outer liquid cooling system simultaneously, water can be avoided directly to enter server internal, significantly reduce because water system leaks the probability causing server to damage.
Should be understood that; application of the present utility model is not limited to above-mentioned citing; for those of ordinary skills, can be improved according to the above description or convert, all these improve and convert the protection range that all should belong to the utility model claims.
Claims (10)
1. an intermediate water loop server cabinet cooling system, is characterized in that, comprises server heat pipe assembly, internal circulation system, Intermediate Heat Exchanger, external circulating system and control system;
Described server heat pipe assembly comprises heat pipe evaporator and heat pipe condenser, and heat pipe evaporator is connected by connecting line with heat pipe condenser; Server heat pipe assembly inner charging refrigerant is gas under cold-producing medium normal temperature and pressure; Directly and server radiating chip transmission of heat by contact, heat pipe condenser and internal circulation system carry out heat exchange for one end of described heat pipe evaporator;
Described internal circulation system comprises Inner eycle water pump, Inner eycle water pump is connected by inner loop pipeline with Intermediate Heat Exchanger, Inner eycle water pump, Intermediate Heat Exchanger and server heat pipe assembly radiating end are connected to form internal circulation system loop by inner loop pipeline, Inner eycle loop refrigerating medium is filled in internal circulation system loop, Inner eycle water pump provides the Inner eycle loop refrigerating medium in power drive inner loop pipeline to flow in internal circulation system loop, and Inner eycle loop refrigerating medium and heat pipe condenser carry out heat exchange;
Described external circulating system comprises cooling column, water tank and outer circulation water pump; Cooling column and water tank, water tank and outer circulation water pump, outer circulation water pump and Intermediate Heat Exchanger, coupled together by external circulation line between Intermediate Heat Exchanger and cooling column and form external circulating system loop, fill outer circulation fluid in external circulating system loop, outer circulation water pump provides the fluid in power drive pipeline to flow;
Described control system comprises controller, Inner eycle server inflow temperature transducer, Inner eycle server leaving water temperature sensors, outer circulation cooling tower leaving water temperature sensors and outer circulation cooling tower leaving water temperature sensors, Inner eycle server inflow temperature sensor setting is between Inner eycle water pump and server heat pipe assembly, and Inner eycle server leaving water temperature sensors is arranged between server heat pipe assembly and Intermediate Heat Exchanger; Outer circulation cooling tower inflow temperature sensor setting is outside between circulating water pump and Intermediate Heat Exchanger, and outer circulation cooling tower leaving water temperature sensors is arranged between Intermediate Heat Exchanger and cooling column; Described Inner eycle server inflow temperature transducer, Inner eycle server leaving water temperature sensors, outer circulation cooling tower leaving water temperature sensors and outer circulation cooling tower leaving water temperature sensors are all electrically connected with controller; Described Inner eycle water pump, cooling column are all connected with controller with outer circulation water pump.
2. intermediate water loop server cabinet cooling system according to claim 1, it is characterized in that, described server heat pipe assembly arranges multiple, is connected in parallel between multiple server heat pipe assembly.
3. intermediate water loop server cabinet cooling system according to claim 2, it is characterized in that, described server heat pipe assembly is arranged on outside server cabinet.
4. intermediate water loop server cabinet cooling system according to claim 2, it is characterized in that, described server heat pipe assembly is placed in rack together with server.
5. intermediate water loop server cabinet cooling system according to claim 3, is characterized in that, arrange waterproof bulkhead in described rack, carries out protection isolation to the two ends of each server heat pipe assembly.
6. intermediate water loop server cabinet cooling system according to claim 1, it is characterized in that, the pipeline of described Inner eycle pumping for water pump end draws branch road water pipe, constant pressure water compensation apparatus is installed on branch road water pipe top, and described constant pressure water compensation apparatus supplements pure water to internal circulation system and regulates the pressure of pipeline.
7. intermediate water loop server cabinet cooling system according to claim 1, is characterized in that, described cooling column is open cooling column or closed cooling column; Be provided with blower fan and feeding spraying pump in cooling column, carry out wind cooling temperature lowering and spraying cooling process for external circulating fluid.
8. intermediate water loop server cabinet cooling system according to claim 1, is characterized in that, described Inner eycle loop refrigerating medium and outer circulation fluid adopt water or ethylene glycol solution.
9. intermediate water loop server cabinet cooling system according to claim 8, it is characterized in that, described Inner eycle loop refrigerating medium and outer circulation fluid adopt antifreeze ethylene glycol solution.
10. intermediate water loop server cabinet cooling system according to claim 1, is characterized in that, described Intermediate Heat Exchanger is plate heat exchanger or tube heat exchanger or double pipe heat exchanger; Intermediate Heat Exchanger one side liquid is outer circulation fluid, and opposite side fluid is Inner eycle loop refrigerating medium.
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| CN104699208A (en) * | 2015-03-31 | 2015-06-10 | 广东申菱空调设备有限公司 | Server radiating system provided with combination of liquid cooling device and water-loop natural cooling air conditioner with heat pipes |
| CN104699206A (en) * | 2015-03-25 | 2015-06-10 | 北京德能恒信科技有限公司 | Cooling cabinet of data center |
| CN104699207A (en) * | 2015-03-31 | 2015-06-10 | 广东申菱空调设备有限公司 | Server radiating system combining air-cooled naturally-cooled heat pipe air-conditioner with liquid-cooled device |
| CN104879992A (en) * | 2015-03-26 | 2015-09-02 | 上海大众祥源动力供应有限公司 | Energy-saving water supply system based on automatic heat exchange |
| CN105430997A (en) * | 2014-09-22 | 2016-03-23 | 中国移动通信集团广东有限公司 | Heat-pipe internal-circulation secondary refrigerant loop server cabinet heat radiation system |
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