CN104699207A - Server radiating system combining air-cooled naturally-cooled heat pipe air-conditioner with liquid-cooled device - Google Patents
Server radiating system combining air-cooled naturally-cooled heat pipe air-conditioner with liquid-cooled device Download PDFInfo
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Abstract
The invention discloses a server radiating system combining an air-cooled naturally-cooled heat pipe air-conditioner with a liquid-cooled device. The server radiating system comprises a liquid-cooled server cabinet, the liquid-cooled server cabinet comprises a cabinet body and a plurality of liquid-cooled servers arranged in the cabinet body, the liquid-cooled device is arranged to be used for direct liquid-cooling radiating of the liquid-cooled servers, and the air-cooled naturally-cooled heat pipe air-conditioner is arranged to be used for auxiliary radiating. The server radiating system has the advantages of high-density cooling, high heat exchange efficiency, low energy consumption, capability of overcoming local hot spots, small occupied area, high reliability, low noise and long service life. A standard server cabinet can be applied to the server radiating system.
Description
Technical field
The present invention relates to server cabinet cooling system, particularly relate to the air-cooled server radiating system naturally cooling heat pipe air conditioner and liquid cooling apparatus combination.
Background technology
Along with the continuous increase of IDC computer room of internet data center high density rack, the integrated level of equipment is more and more higher, and processing power also increases gradually, but the power consumption of equipment also increases thereupon, causes the thermal value of equipment within machine cabinet more.According to statistics, in current domestic large-scale IDC machine room, equipment cabinet server thermal value is large, and is that annual 8760h runs substantially, for not adopting the machine room of new wind, the whole year all needs cooling, causes air conditioning energy consumption huge, and its air conditioning energy consumption accounts for 40% ~ 50% of the overall energy consumption of data center module.
Traditional data machine room air supply mode has the modes such as the air-supply of base plate air channel, the air-supply of cold and hot channel separation and the refrigeration air-supply of full room, this pattern has not met the refrigeration demand of modernization machine room high density rack, has occurred the problems such as local overheating, power consumption are large, air conditioner in machine room energy consumption is too high, noise is large.Simultaneously precise machine room air conditioner needs repeatedly humidification, dehumidifying running or supporting Special dehumidifier carry out machine room air humidity, dew point controls, and to guarantee that device interior condensation does not occur, causes that computer-room air conditioning system refrigerating efficiency reduces, energy consumption increases.If the heat dissipation problem of machine room solves bad, will the safe operation of serious threat calculator room equipment.Therefore, how when meeting equipment use requirement, the energy consumption effectively reducing air-conditioning system in machine room is the major issue that air conditioner industry and data center module operation industry face.
Consider from Energy Angle, have at present directly to adopt and outdoor air is introduced the indoor scheme for machine room cooling, its advantage is that refrigerating efficiency is high, initial cost is low, energy consumption is low, but shortcoming is after introducing outdoor cold air, make room air cleanliness factor, humidity be difficult to ensure, bring potential safety hazard, later stage operation maintenance amount is larger.Also have in addition and adopt gas gas honeycomb heat exchanger, by heat pipe hot-air and outdoor cold air indirect heat exchange, thus reduce temperature in machine room; Its advantage does not introduce outdoor air, and do not affect cleanliness factor and the humidity of the air in machine room, shortcoming is that initial cost is relatively high, and heat exchanger structure more complicated, easily blocks, and needs periodic cleaning, and maintenance workload is large.
And along with the development of server technology, the server application of high-power, high heat generation density is more and more, and be irreversible development trend, the maximum operate power of the single rack of current part industry user reaches about 10 ~ 15kW, but due to the limitation of cooling air mode radiating efficiency, make the application of high-power server also be difficult to break through more than 15kW/ rack.
Liquid-cooling heat radiation is the most efficient, the state-of-the-art heat sink conception that developed recently gets up, its principle is that liquid heat transferring medium is directly passed into the server internal with liquid cooling function, main heater element--the heat that chip (CPU) produces is taken away (accounting for 70 ~ 80% of whole server thermal value), adopt liquid-cooling heat radiation scheme, unit rack power even can be made in theory to break through more than 50kW/.But current this heat sink conception exists only in Scientific Research in University Laboratory and only a few enterprises is studied among a small circle, and fail formed applied generalization application, one of very important reason, because the server of this employing liquid-cooling heat radiation, its rack needs built-in liquid cooling water distribution system, this just needs to carry out special Custom Design to liquid cooling server cabinet, and rack manufacturer is generally standardized production, present stage does not grasp the gordian technique that liquid cooling water distribution system designs yet, the enclosure product of built-in liquid cooling water distribution system cannot be provided for liquid cooling server user is supporting, the particularly upgrading of old machine room, if want to change liquid-cooling heat radiation scheme into, the rack of built-in liquid cooling water distribution system all will be replaced with to whole server cabinet, that improvement project amount and cost are all very high, the development greatly having limited to liquid-cooling heat radiation technology is popularized.In addition, liquid cooling heat radiation system can only take away the server thermal value of 70 ~ 80%, but still have the caloric requirement auxiliary refrigeration device of 20 ~ 30% to bear, for the high-density applications of this Single Cabinet power of liquid cooling server up to more than 50kW, each rack needs the heat (20 ~ 30% of general power) of auxiliary refrigeration device process 10 ~ more than 15kW, if auxiliary refrigeration device still adopts traditional wind-cooling heat dissipating mode, very easily there is the hot localised points problem of rack, affect the component life of server, this is also that the cold server of higher density fluid applies the problem that can not ignore.
Application number be 201010141693.8 Chinese patent " noise-free energy-saving server " a kind of noise-free energy-saving server is provided, comprise: 1) adopt heat pipe to substitute traditional fan forced convection mode in conjunction with liquid cooling mode and solve processor heat dissipation problem, eliminate fan noise; 2) DDR3 internal memory low in energy consumption is used to reduce noise; 3) hard disk uses solid state hard disc, eliminates hard disk noise; 4) fan-free efficient power is used to be system power supply; Concrete steps are as follows: adopt heat pipe to dispel the heat in conjunction with liquid cooling mode, heat pipe one end is connected with processor, the other end is connected with water pipe in heat exchanger, according to heat pipe height heat transfer system performance, the heat that processor produces is passed to the water pipe in heat exchanger, cold water flows in water pipe, in heat pipe and water pipe, cold water carries out heat interchange, by cool water heating, hot water is discharged from heat exchanger, hot water inputs water cooling pond after chiller refrigeration again, so circulates, solve the heat dissipation problem of processor with this, water flow through water pump to support.This patent is based on heat pipe heat radiation, and main heat is absorbed by heat pipe, and then carries out heat interchange with the mode of liquid cooling and heat pipe, can only the partial heat of takeaway service device, and remaining waste heat there is no any measure to process.
Application number is the control method that the Chinese patent " a kind of control method of heat pipe secondary refrigerant loop server cabinet cooling system " of 201410511550.X discloses a kind of heat pipe secondary refrigerant loop server cabinet cooling system, system comprises machine room unit, refrigerant is for backwater unit and control system, described refrigerant comprises cooling unit and circulation power unit for backwater unit, described circulation power unit is connected with machine room unit by machine room water main/machine room backwater main, circulation power unit by outdoor give vent to anger connecting pipe/outdoor return liquid connecting pipe be connected with cooling unit, described cooling unit is all connected with control system with circulation power unit.Described machine room unit comprises rack, more than one radiator fan, multiple server, multiple heat-pipe radiator and multiple heat-pipe radiator heat-exchanger rig, described radiator fan, server, heat-pipe radiator and heat-pipe radiator heat-exchanger rig are all arranged in rack, heat-pipe radiator is fitted on the server closely, heat-pipe radiator heat-exchanger rig is connected with heat-pipe radiator, described heat-pipe radiator heat-exchanger rig is connected with machine room water main by water supply arm, and heat-pipe radiator heat-exchanger rig is connected with machine room backwater main by return branch.The heat-pipe radiator of this patent is only just fitted on the server, its topmost heater members is not the most directly dispelled the heat, in addition, this system is carried out the heat interchange of two loops, and this also certainly will cause heat transfer efficiency low relative to direct heat exchange.In addition, this patent only considered the heat sink conception of the main heater element of server (CPU), but does not consider the heat radiation (memory hard disk etc.) of other heater elements, so the heat sink conception carried of this patent in fact and perfect not.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide one to have refrigerating efficiency height effective, there will not be hot localised points problem and the air-cooled server radiating system naturally cooling heat pipe air conditioner and liquid cooling apparatus and combine without the need to transforming rack.
Above-mentioned purpose of the present invention is achieved by following technical solution:
A kind of air-cooled server radiating system naturally cooling heat pipe air conditioner and liquid cooling apparatus combination, comprise liquid cooling server cabinet, described liquid cooling server cabinet comprises rack cabinet and arranges the multiple liquid cooling servers of machine in cabinet cabinet, be provided with liquid cooling apparatus and direct liquid-cooling heat radiation is carried out to liquid cooling server, be also provided with the air-cooled heat pipe air conditioner that naturally cools and carry out auxiliary heat dissipation.The present invention carries out main refrigeration by adopting liquid-cooling heat radiation technology, cabinet-level heat pipe heat radiation technology carries out auxiliary cooling, major-minor cooperation refrigeration, refrigerating efficiency height is effective on the one hand, there will not be hot localised points problem, on the other hand, scheme provided by the invention is without the need to transforming rack, and this provides the universal possibility used to liquid-cooling heat radiation.
Described liquid cooling apparatus comprises liquid cooling heat radiator, divider, current collector and liquid cooling heat transferring medium, described liquid cooling heat radiator is used for dispelling the heat to server chips, described divider is connected with liquid cooling heat radiator by many feed liquor connecting branches, liquid cooling heat radiator is connected with described current collector by many fluid connecting branches again, described liquid cooling heat transferring medium enters liquid cooling heat radiator by divider and feed liquor connecting branch, then is collected by current collector by fluid connecting branch efflux cold heat sink.Liquid cooling heat transferring medium enters liquid cooling heat radiator by divider by feed liquor connecting branch, then by fluid connecting branch enter current collector formed circulation the major heat of liquid cooling server is taken away.Described liquid cooling heat transferring medium is tap water, pure water, organic solution, inorganic solution or freon.Preferred employing pure water.
Further, described liquid cooling heat radiator is located near server chips, or directly contacts with server chips.
The described air-cooled heat pipe air conditioner that naturally cools comprises evaporator, condenser, air-cooled natural cooling heat exchange device, motorized adjustment refrigerant valve, cooling-water machine, connecting line and inside and outside cycle heat exchange medium, described evaporator and condenser are connected to form inner ring road by connecting line, and load internal circulation heat-exchanging medium by the connecting line of inner ring road, described cooling-water machine and condenser are connected to form outer ring by connecting line, and load external circulation heat exchanging medium by the connecting line of outer ring.Described inside and outside loop realizes heat transmission by condenser.Gaseous state is evaporated to after the liquid internal circulation heat-exchanging Absorption of Medium heat of described evaporator inside, condenser is flowed into along connecting tracheae under the effect of heat pipe circulation power, the external circulation heat exchanging medium of the low temperature that heat is provided by water pump is taken away, after being condensed into liquid refrigerant, flowing back to evaporator along connecting fluid pipe and form circulation.Described internal circulation heat-exchanging medium is freon, preferably adopts environmental protection and the low R134a freon of operating pressure; Described external circulation heat exchanging medium is water or anti-freezing solution, can lower than the area of zero degree at the lowest temperature, the anti-freezing solutions such as preferred ethylene glycol solution.
Further, the described air-cooled heat pipe air conditioner that naturally cools also comprises blower and water pump, and evaporator air side is located at by described blower fan, and described water pump is located between condenser and cooling-water machine.
Further, described water ring natural cooling heat exchange device comprises axial flow blower and natural cooling heat exchange coil pipe, and described natural cooling heat exchange coil pipe serial or parallel connection is on the connecting line of inner ring road.
Particularly, a kind of scheme, the connecting line of inner ring road comprises and connects tracheae and connecting fluid pipe, described evaporator and condenser are by being connected tracheae and connecting fluid pipe is connected to form inner ring road respectively, described connection tracheae is provided with air-cooled natural cooling heat exchange device and motorized adjustment refrigerant valve, described motorized adjustment refrigerant valve is located on the import or export pipeline of air-cooled natural cooling heat exchange device, on the export pipeline be preferably mounted at.
Another kind of scheme, the connecting line of inner ring road comprises and connects tracheae and connecting fluid pipe, described evaporator and condenser are by being connected tracheae and connecting fluid pipe is connected to form inner ring road respectively, described air-cooled natural cooling heat exchange device one end is located at and is connected on tracheae, the other end is located on connecting fluid pipe, described motorized adjustment refrigerant valve is located on the import or export pipeline of air-cooled natural cooling heat exchange device, on the export pipeline be preferably mounted at.
The first scheme of preferred employing, can obtain longer cooling working time and more significant energy-saving effect naturally.
Described liquid cooling apparatus is external to be arranged on rack cabinet, adopts fixed or movable installation, preferred fixed installation.
The feed liquor connecting branch of described liquid cooling apparatus and feed liquor connecting branch, can adopt hard state tube or soft state pipe, preferred soft state pipe.The described air-cooled evaporator naturally cooling heat pipe air conditioner is arranged on front reveal or the tailgate side of rack cabinet, is preferably mounted at tailgate side; Described evaporator can turn and open by axle, and the tracheae connecting pipe of evaporator and liquid pipe connected pipe all adopt soft state pipe.
The described air-cooled motorized adjustment refrigerant valve naturally cooling heat pipe air conditioner adopts two-port valve or T-valve, preferred T-valve.
When described water ring natural cooling heat exchange device is connected on the connecting line of inner ring road, the operation method of described server radiating system is as follows:
1) when environment temperature is more than 20 DEG C, cooling-water machine is opened, air-cooled natural cooling heat exchange device is out of service, the bypass aperture of motorized adjustment refrigerant valve is 0%, internal circulation heat-exchanging medium does not flow through air-cooled natural cooling heat exchange device, axial flow blower is also in halted state, and the cold needed for internal circulation heat-exchanging medium condenses is all provided by secondary heat exchange by condenser and cooling-water machine;
2) when environment temperature is 0 ~ 20 DEG C, cooling-water machine and air-cooled natural cooling heat exchange device all open operation, the bypass aperture of motorized adjustment refrigerant valve is 100%, all internal circulation heat-exchanging media first flow through air-cooled natural cooling heat exchange device, utilize axial flow blower and carry out heat radiation precooling with the forced-convection heat transfer inner loop heat transferring medium of natural cooling heat exchange coil pipe, internal circulation heat-exchanging medium flows through condenser more further, and the low temperature external circulation heat exchanging medium that residue condenser heat is provided by cooling-water machine and water pump is taken away;
3) when environment temperature is below 0 DEG C, cooling-water machine is out of service, air-cooled natural cooling heat exchange device is opened and is run, the bypass aperture of motorized adjustment refrigerant valve first remains 100%, all internal circulation heat-exchanging media flow through air-cooled natural cooling heat exchange device, and regulate nature to cool the cold produced by the rotating speed of regulating shaft flow fan; The adjustment of described axial flow blower is as follows: when internal circulation heat-exchanging medium outlet temperature reaches below 8 DEG C, reduces the rotating speed of axial flow blower, makes internal circulation heat-exchanging medium outlet temperature increase; When internal circulation heat-exchanging medium outlet temperature reaches more than 12 DEG C, then increase the rotating speed of axial flow blower, internal circulation heat-exchanging medium outlet temperature is declined; When internal circulation heat-exchanging medium outlet temperature is between 8 ~ 12 DEG C, then the rotating speed of axial flow blower remains unchanged; Controlling internal circulation heat-exchanging medium outlet temperature in suitable scope by regulating shaft flow fan, is optimum between 8 ~ 12 DEG C.
4) when environment temperature is extremely low, axial flow blower be in minimum speed under, the cold that produces of cooling is still bigger than normal when namely internal circulation heat-exchanging medium outlet temperature is below 12 DEG C naturally, then retainer shaft flow fan stable operation under minimum speed, and the cold produced by regulating the bypass aperture of motorized adjustment refrigerant valve to control nature cooling, the adjustment of described motorized adjustment refrigerant valve is as follows: when internal circulation heat-exchanging medium outlet temperature reaches below 8 DEG C, reduce the bypass aperture of motorized adjustment refrigerant valve, make internal circulation heat-exchanging medium outlet temperature increase; When internal circulation heat-exchanging medium outlet temperature reaches more than 12 DEG C, then start the bypass aperture increasing motorized adjustment refrigerant valve, internal circulation heat-exchanging medium outlet temperature is declined; When internal circulation heat-exchanging medium outlet temperature is between 8 ~ 12 DEG C, then the bypass aperture of motorized adjustment refrigerant valve remains unchanged.By regulating motorized adjustment refrigerant valve to control internal circulation heat-exchanging medium outlet temperature in suitable scope, be optimum between 8 ~ 12 DEG C.
When described water ring natural cooling heat exchange device is connected in parallel on the connecting line of inner ring road, the operation method of described server radiating system is as follows:
11) when environment temperature is more than 0 DEG C, cooling-water machine is opened, air-cooled natural cooling heat exchange device is out of service, the bypass aperture of motorized adjustment refrigerant valve is 0%, internal circulation heat-exchanging medium does not flow through air-cooled natural cooling heat exchange device, axial flow blower is also in halted state, cold needed for internal circulation heat-exchanging medium condenses, is all provided by secondary heat exchange by condenser and cooling-water machine;
12) when environment temperature is below 0 DEG C, cooling-water machine is out of service, air-cooled natural cooling heat exchange device is opened and is run, the bypass aperture of motorized adjustment refrigerant valve first remains 100%, all internal circulation heat-exchanging media flow through air-cooled natural cooling heat exchange device, and regulate nature to cool the cold produced by the rotating speed of regulating shaft flow fan; The adjustment of described axial flow blower is as follows: when internal circulation heat-exchanging medium outlet temperature reaches below 8 DEG C, reduces the rotating speed of axial flow blower, makes internal circulation heat-exchanging medium outlet temperature increase; When internal circulation heat-exchanging medium outlet temperature reaches more than 12 DEG C, then increase the rotating speed of axial flow blower, internal circulation heat-exchanging medium outlet temperature is declined; When internal circulation heat-exchanging medium outlet temperature is between 8 ~ 12 DEG C, then the rotating speed of axial flow blower remains unchanged; Controlling internal circulation heat-exchanging medium outlet temperature in suitable scope by regulating shaft flow fan, is optimum between 8 ~ 12 DEG C;
13) when environment temperature is extremely low, axial flow blower be in minimum speed under, the cold that produces of cooling is still bigger than normal when namely internal circulation heat-exchanging medium outlet temperature is below 12 DEG C naturally, then retainer shaft flow fan stable operation under minimum speed, and the cold produced by regulating the bypass aperture of motorized adjustment refrigerant valve to control nature cooling, the adjustment of described motorized adjustment refrigerant valve is as follows: when internal circulation heat-exchanging medium outlet temperature reaches below 8 DEG C, reduce the bypass aperture of motorized adjustment refrigerant valve, make internal circulation heat-exchanging medium outlet temperature increase; When internal circulation heat-exchanging medium outlet temperature reaches more than 12 DEG C, then start the bypass aperture increasing motorized adjustment refrigerant valve, internal circulation heat-exchanging medium outlet temperature is declined; When internal circulation heat-exchanging medium outlet temperature is between 8 ~ 12 DEG C, then the bypass aperture of motorized adjustment refrigerant valve remains unchanged.By regulating motorized adjustment refrigerant valve to control internal circulation heat-exchanging medium outlet temperature in suitable scope, be optimum between 8 ~ 12 DEG C.
Compared with prior art, beneficial effect of the present invention is as follows:
(1) separate design that server cabinet and liquid cooling moisture join distributor is realized, rack is without the need to nonstandard customization, independently on standard cabinet cabinet a liquid cooling apparatus with water distribution system is installed can makes it to possess and provide the distribution of liquid cooling heat transferring medium for liquid cooling server and collect function, be conducive to the applied generalization of liquid-cooling heat radiation technology.
(2) adopt liquid-cooling heat radiation technology to carry out main refrigeration, realize super-high density refrigeration and super-high energy-saving operation, only the heat-exchange working medium of 35 ~ 45 DEG C (as pure water) need be provided can to complete, without the need to any mechanical refrigeration apparatus or systems such as compressor coolings.
(3) cabinet-level heat pipe heat radiation technology is adopted to carry out auxiliary cooling, complete dry cooling condition runs, evaporated condensation water produces, avoid the loss of dehumidifying humidification, the Effec-tive Function that air supplying distance is short, realize blower fan, even Blower-free can run (being dispelled the heat by server self blower fan), and effectively solve server cabinet local overheating and the problem that there is focus.
(4) whole system simplicity of design, invests low, occupies any machine room space hardly, and winding houses take up an area utilization factor.
(5) system machine room inner without the need to propulsion system, run noiselessness, safety and environmental protection, realize that data center module is energy-efficient, the object of safe and reliable operation.
Accompanying drawing explanation
Fig. 1 is structure and the principle schematic of embodiment 1;
Wherein, 1. rack cabinet; 2. liquid cooling server; 3. liquid cooling server chips; 4. liquid cooling heat radiator; 5. current collector; 6. divider; 7. feed liquor connecting branch; 8. evaporator; 9. blower fan; 10. condenser; 11. connecting fluid pipes; 12. connect tracheae; 13. water pumps; 14. cooling-water machines; 15. liquid cooling heat transferring mediums; 16. internal circulation heat-exchanging media; 17. fluid connecting branches; 18. air-cooled natural cooling heat exchange devices; 19. axial flow blowers; 20. natural cooling heat exchange coil pipes; 21. motorized adjustment refrigerant valves; 22. external circulation heat exchanging media; I. liquid cooling server cabinet; II. liquid cooling apparatus; III. air-cooledly naturally cool heat pipe air conditioner.
Fig. 2 is structure and the principle schematic of embodiment 2;
Wherein, 1. rack cabinet; 2. liquid cooling server; 3. liquid cooling server chips; 4. liquid cooling heat radiator; 5. current collector; 6. divider; 7. feed liquor connecting branch; 8. evaporator; 9. blower fan; 10. condenser; 11. connecting fluid pipes; 12. connect tracheae; 13. water pumps; 14. cooling-water machines; 15. liquid cooling heat transferring mediums; 16. internal circulation heat-exchanging media; 17. fluid connecting branches; 18. air-cooled natural cooling heat exchange devices; 19. axial flow blowers; 20. natural cooling heat exchange coil pipes; 21. motorized adjustment refrigerant valves; 22. external circulation heat exchanging media; I. liquid cooling server cabinet; II. liquid cooling apparatus; III. air-cooledly naturally cool heat pipe air conditioner.
Embodiment
Below in conjunction with Figure of description and specific embodiment the present invention made and elaborating further, but embodiment does not limit in any form the present invention.
Embodiment 1
As Fig. 1, a kind of server radiating system naturally cooling water-cooling device and liquid cooling apparatus combination, comprises liquid cooling server cabinet I, liquid cooling apparatus II and the air-cooled heat pipe air conditioner III of cooling naturally.Described liquid cooling server cabinet I comprises rack cabinet 1 and arranges the multiple liquid cooling servers 2 of machine in cabinet cabinet, described liquid cooling server 2 is provided with liquid cooling server chips 3, described liquid cooling apparatus II comprises liquid cooling heat radiator 4, divider 6 and current collector 5, described divider 6 is connected with the liquid cooling heat radiator 4 be arranged in liquid cooling server with fluid connecting branch 17 respectively by many feed liquor connecting branches 7 one by one with current collector 5, and described liquid cooling heat radiator 4 and liquid cooling server chips 3 contact or be located near chip 3, the described air-cooled heat pipe air conditioner III that naturally cools comprises the evaporator 8 being located at rack cabinet 1 tailgate side, be arranged on the blower fan 9 of evaporator 8 air side, connect tracheae 12, connecting fluid pipe 11, air-cooled natural cooling heat exchange device 18, motorized adjustment refrigerant valve 21, water pump 13, condenser 10 and cooling-water machine 14, described evaporator 8 and condenser 10 are by being connected tracheae 12 and connecting fluid pipe 11 is connected to form inner ring road respectively, described connection tracheae 12 is provided with air-cooled natural cooling heat exchange device 18 and motorized adjustment refrigerant valve 21, described motorized adjustment refrigerant valve 21 is arranged on the export pipeline of air-cooled natural cooling heat exchange device 18, described condenser 10 is connected to form outer ring with cooling-water machine 14, is also provided with water pump 13 between described condenser 10 and cooling-water machine 14.
Further, described water ring natural cooling heat exchange device 18 comprises axial flow blower 19 and natural cooling heat exchange coil pipe 18, and described natural cooling heat exchange coil pipe 18 one end is located at the other end on connection tracheae 12 and is connected with motorized adjustment refrigerant valve 21.Motorized adjustment refrigerant valve 21 adopts two-port valve or T-valve, preferred T-valve.
Connection tracheae 12, the connecting fluid 11 of the feed liquor connecting branch 7 of described liquid cooling apparatus II, fluid connecting branch 17 and evaporator 8 are managed and are all adopted soft state pipe.Described liquid cooling apparatus II is external to be arranged on rack cabinet 1, adopts fixed installation.Described evaporator 8 can turn and open by axle.
Described liquid cooling apparatus II and the liquid cooling heat transferring medium 15 of liquid cooling server 2, adopt pure water; The described air-cooled internal circulation heat-exchanging medium 16 naturally cooling heat pipe air conditioner III is R134a freon; Described external circulation heat exchanging medium 22 is water, can lower than the area of zero degree at the lowest temperature, the anti-freezing solutions such as preferred ethylene glycol solution.
When native system runs, the thermal value of the liquid cooling server chips 3 in liquid cooling server 2 occupies gross calorific power about 80%, this part heat is absorbed by liquid cooling heat radiator 4, and by flow through liquid cooling heat radiator 4, the liquid cooling heat transferring medium 15 of temperature about 35 ~ 45 DEG C takes away, and makes the internal temperature of liquid cooling server chips 3 remain on the normal operating condition of 60 ~ 70 DEG C.The assignment of traffic of the liquid cooling heat transferring medium 15 of the liquid cooling heat radiator 4 of each liquid cooling server 2 inside and collecting, complete by liquid cooling apparatus II: after the liquid cooling heat transferring medium 15 that temperature is about 35 ~ 45 DEG C flows into divider 6 from feed flow total pipeline, liquid cooling heat radiator 4 is entered by feed liquor connecting branch 7, after the heat of the cold server chips 3 of absorbing liquid, become 40 ~ 50 DEG C of state of temperatures, enter current collector 5 by fluid connecting branch 17 and flow back to manifold road.
The thermal value of other elements in liquid cooling server 2 occupies gross calorific power about 20%, the air stream that this part heat is produced by the blower fan of server own or the air-cooled blower fan 9 naturally cooling heat pipe air conditioner III is taken away, after flowing through the evaporator 8 of the air-cooled heat pipe air conditioner III of cooling naturally, the heat of air stream is absorbed by the internal circulation heat-exchanging medium 16 of 15 ~ 20 DEG C, airflow temperature is made again to be cooled to about 20 ~ 25 DEG C, again flow into server takeaway service device inner member heat, so circulate.
At the air-cooled Inner eycle naturally cooling heat pipe air conditioner III, gaseous state is evaporated to after the internal circulation heat-exchanging medium 16 of the liquid state of evaporator 8 inside absorbs heat, condenser 9 is flowed into along connecting tracheae 12 under the effect of heat pipe circulation power, the external circulation heat exchanging medium 22 of the low temperature that heat is provided by water pump 13 is taken away, after being condensed into liquid refrigerant, flow back to evaporator 8 along connecting fluid pipe 11, so circulate.
Naturally cool heat pipe air conditioner III, the environmentally difference of temperature air-cooled, have three kinds of operational modes:
1) complete mechanical cooling operation mode: environment temperature higher (during as more than 20 DEG C), cooling-water machine 14 is opened, air-cooled natural cooling heat exchange device 18 is out of service, the bypass aperture of motorized adjustment refrigerant valve 21 is 0%, internal circulation heat-exchanging medium 16 does not flow through air-cooled natural cooling heat exchange device 18, axial flow blower 19 is also in halted state, cold needed for internal circulation heat-exchanging medium 16 condensation, is all provided by secondary heat exchange by condenser 10 and cooling-water machine 14.
2) hybrid refrigeration operational mode: environment temperature lower (during as 0 ~ 20 DEG C), cooling-water machine 14 and air-cooled natural cooling heat exchange device 18 all open operation, the bypass aperture of motorized adjustment refrigerant valve 21 is 100%, all internal circulation heat-exchanging media 16 first flow through air-cooled natural cooling heat exchange device 18, utilize axial flow blower 19 and carry out heat radiation precooling (partial condensation) with the forced-convection heat transfer inner loop heat transferring medium 16 of natural cooling heat exchange coil pipe 20, internal circulation heat-exchanging medium 16 flows through condenser 10 more further, the low temperature external circulation heat exchanging medium 22 that residue condenser heat is provided by cooling-water machine 14 and water pump 13 is taken away.
3) complete natural cooling mode of operation: environment temperature lower (during as less than 0 DEG C), cooling-water machine 14 is out of service, air-cooled natural cooling heat exchange device 18 is opened and is run, the bypass aperture of motorized adjustment refrigerant valve 21 first remains 100%, all internal circulation heat-exchanging media 16 flow through air-cooled natural cooling heat exchange device 18, and regulate nature to cool the cold produced by the rotating speed of regulating shaft flow fan 19; If environment temperature is extremely low, under axial flow blower 19 has been in minimum speed, (being generally 10 ~ 30%) naturally cools the cold produced and still bigger than normally (shows that internal circulation heat-exchanging medium 16 temperature and pressure is on the low side, if internal circulation heat-exchanging medium outlet temperature is less than 12 DEG C), then retainer shaft flow fan 19 stable operation under minimum speed, and the cold produced by regulating the bypass aperture of motorized adjustment refrigerant valve 21 to control nature cooling.
Embodiment 2:
As Fig. 2, a kind of server radiating system naturally cooling water-cooling device and liquid cooling apparatus combination, comprises liquid cooling server cabinet I, liquid cooling apparatus II and the air-cooled heat pipe air conditioner III of cooling naturally.Described liquid cooling server cabinet I comprises rack cabinet 1 and arranges the multiple liquid cooling servers 2 of machine in cabinet cabinet, described liquid cooling server 2 is provided with liquid cooling server chips 3, described liquid cooling apparatus II comprises liquid cooling heat radiator 4, divider 6 and current collector 5, described divider 6 is connected with the liquid cooling heat radiator 4 be arranged in liquid cooling server with fluid connecting branch 17 respectively by many feed liquor connecting branches 7 one by one with current collector 5, and described liquid cooling heat radiator 4 and liquid cooling server chips 3 contact or be located near chip 3, the described air-cooled heat pipe air conditioner III that naturally cools comprises the evaporator 8 being located at rack cabinet tailgate side, be arranged on the blower fan 9 of evaporator 8 air side, connect tracheae 12, connecting fluid pipe 11, air-cooled natural cooling heat exchange device 18, motorized adjustment refrigerant valve 21, water pump 13, condenser 10 and cooling-water machine 14, described evaporator 8 and condenser 10 are by being connected tracheae 12 and connecting fluid pipe 11 is connected to form inner ring road respectively, described air-cooled natural cooling heat exchange device 18 one end is located at the other end on connection tracheae 12 and is located on connecting fluid pipe 11, described air-cooled natural cooling heat exchange device 18 export pipeline is provided with motorized adjustment refrigerant valve 21, described condenser 10 is connected to form outer ring with cooling-water machine 14, is provided with water pump 13 between described condenser 10 and cooling-water machine 14.
Further, described water ring natural cooling heat exchange device 18 comprises axial flow blower 19 and natural cooling heat exchange coil pipe 18, and described natural cooling heat exchange coil pipe 18 one end is located at the other end on connection tracheae 12 and is connected with motorized adjustment refrigerant valve 21.Motorized adjustment refrigerant valve 21 adopts T-valve.
Connection tracheae 12, the connecting fluid 11 of the feed liquor connecting branch 7 of described liquid cooling apparatus II, fluid connecting branch 17 and evaporator 8 are managed and are all adopted soft state pipe.Described liquid cooling apparatus II is external to be arranged on rack cabinet 1, adopts fixed installation.Described evaporator 8 can turn and open by axle.
Described liquid cooling apparatus II and the liquid cooling heat transferring medium 15 of liquid cooling server 2, adopt pure water; The described air-cooled internal circulation heat-exchanging medium 16 naturally cooling heat pipe air conditioner III is R134a freon; Described external circulation heat exchanging medium 22 is water, can lower than the area of zero degree at the lowest temperature, the anti-freezing solutions such as preferred ethylene glycol solution.
When native system runs, the thermal value of the liquid cooling server chips 3 in liquid cooling server 2 occupies gross calorific power about 80%, this part heat is absorbed by liquid cooling heat radiator 4, and by flow through liquid cooling heat radiator 4, the liquid cooling heat transferring medium 15 of temperature about 35 ~ 45 DEG C takes away, and makes the internal temperature of liquid cooling server chips 3 remain on the normal operating condition of 60 ~ 70 DEG C.The assignment of traffic of the liquid cooling heat transferring medium 15 of the liquid cooling heat radiator 4 of each liquid cooling server 2 inside and collecting, complete by liquid cooling apparatus II: after the liquid cooling heat transferring medium 15 that temperature is about 35 ~ 45 DEG C flows into divider 6 from feed flow total pipeline, liquid cooling heat radiator 4 is entered by feed liquor connecting branch 7, after the heat of the cold server chips 3 of absorbing liquid, become 40 ~ 50 DEG C of state of temperatures, enter current collector 5 by fluid connecting branch 17, flow back to manifold road.
The thermal value of other elements in liquid cooling server 2 occupies gross calorific power about 20%, the air stream that this part heat is produced by the blower fan of server own or the air-cooled blower fan 9 naturally cooling heat pipe air conditioner III is taken away, after flowing through the evaporator 8 of the air-cooled heat pipe air conditioner III of cooling naturally, the heat of air stream is absorbed by the internal circulation heat-exchanging medium 16 of 15 ~ 20 DEG C, airflow temperature is made again to be cooled to about 20 ~ 25 DEG C, again flow into server takeaway service device inner member heat, so circulate.
At the air-cooled Inner eycle naturally cooling heat pipe air conditioner III, gaseous state is evaporated to after the internal circulation heat-exchanging medium 16 of the liquid state of evaporator 8 inside absorbs heat, condenser 9 is flowed into along connecting tracheae 12 under the effect of heat pipe circulation power, the external circulation heat exchanging medium 22 of the low temperature that heat is provided by water pump 13 is taken away, after being condensed into liquid refrigerant, flow back to evaporator 8 along connecting fluid pipe 11, so circulate.
Naturally cool heat pipe air conditioner III, the environmentally difference of temperature air-cooled, have two kinds of operational modes:
1) mechanical refrigeration operational mode: environment temperature higher (during as more than 0 DEG C), cooling-water machine 14 is opened, air-cooled natural cooling heat exchange device 18 is out of service, the bypass aperture of motorized adjustment refrigerant valve 21 is 0%, internal circulation heat-exchanging medium 16 does not flow through air-cooled natural cooling heat exchange device 18, axial flow blower 19 is also in halted state, cold needed for internal circulation heat-exchanging medium 16 condensation, is all provided by secondary heat exchange by condenser 10 and cooling-water machine 14.
2) natural cooling mode of operation: environment temperature lower (during as less than 0 DEG C), cooling-water machine 14 is out of service, air-cooled natural cooling heat exchange device 18 is opened and is run, the bypass aperture of motorized adjustment refrigerant valve 21 first remains 100%, all internal circulation heat-exchanging media 16 flow through air-cooled natural cooling heat exchange device 18, and regulate nature to cool the cold produced by the rotating speed of regulating shaft flow fan 19; If environment temperature is extremely low, under axial flow blower 19 has been in minimum speed, (being generally 10 ~ 30%) naturally cools the cold produced and still bigger than normally (shows that internal circulation heat-exchanging medium 16 temperature and pressure is on the low side, if internal circulation heat-exchanging medium outlet temperature is less than 12 DEG C), then retainer shaft flow fan 19 stable operation under minimum speed, and the cold produced by regulating the bypass aperture of motorized adjustment refrigerant valve 21 to control nature cooling.
Claims (10)
1. the air-cooled server radiating system naturally cooling heat pipe air conditioner and liquid cooling apparatus combination, comprise liquid cooling server cabinet, described liquid cooling server cabinet comprises rack cabinet and arranges the multiple liquid cooling servers of machine in cabinet cabinet, it is characterized in that, be provided with liquid cooling apparatus and direct liquid-cooling heat radiation is carried out to liquid cooling server, be also provided with the air-cooled heat pipe air conditioner that naturally cools and carry out auxiliary heat dissipation.
2. the server radiating system of air-cooled cooling heat pipe air conditioner naturally and liquid cooling apparatus combination according to claim 1, it is characterized in that, described liquid cooling apparatus comprises liquid cooling heat radiator, divider, current collector and liquid cooling heat transferring medium, described liquid cooling heat radiator is used for dispelling the heat to server chips, described divider is connected with liquid cooling heat radiator by many feed liquor connecting branches, liquid cooling heat radiator is connected with described current collector by many fluid connecting branches again, described liquid cooling heat transferring medium enters liquid cooling heat radiator by divider and feed liquor connecting branch, collected by current collector by fluid connecting branch efflux cold heat sink again.
3. the server radiating system of air-cooled cooling heat pipe air conditioner naturally and liquid cooling apparatus combination according to claim 1, it is characterized in that, the described air-cooled heat pipe air conditioner that naturally cools comprises evaporator, condenser, air-cooled natural cooling heat exchange device, motorized adjustment refrigerant valve, cooling-water machine, connecting line and in, external circulation heat exchanging medium, described evaporator and condenser are connected to form inner ring road by connecting line, and load internal circulation heat-exchanging medium by the connecting line of inner ring road, described air-cooled natural cooling heat exchange device serial or parallel connection is on the connecting line of inner ring road, described motorized adjustment refrigerant valve is located on the import or export pipeline of air-cooled natural cooling heat exchange device, described cooling-water machine and condenser are connected to form outer ring by connecting line, and load external circulation heat exchanging medium by the connecting line of outer ring, in described, outer ring realizes heat transmission by condenser.
4. the server radiating system of air-cooled cooling heat pipe air conditioner naturally and liquid cooling apparatus combination according to claim 3, it is characterized in that, the described air-cooled heat pipe air conditioner that naturally cools also comprises blower and water pump, and evaporator air side is located at by described blower fan, and described water pump is located between condenser and cooling-water machine.
5. the server radiating system of air-cooled cooling heat pipe air conditioner naturally and liquid cooling apparatus combination according to claim 3, it is characterized in that, described water ring natural cooling heat exchange device comprises axial flow blower and natural cooling heat exchange coil pipe, and described natural cooling heat exchange coil pipe serial or parallel connection is on the connecting line of inner ring road.
6. the server radiating system of air-cooled cooling heat pipe air conditioner naturally and liquid cooling apparatus combination according to claim 3, it is characterized in that, described internal circulation heat-exchanging medium is freon, and described external circulation heat exchanging medium is water or anti-freezing solution.
7. the server radiating system of air-cooled cooling heat pipe air conditioner naturally and liquid cooling apparatus combination according to claim 2, it is characterized in that, described liquid cooling heat transferring medium is tap water, pure water, organic solution, inorganic solution or freon.
8. the server radiating system of air-cooled cooling heat pipe air conditioner naturally and liquid cooling apparatus combination according to claim 2, it is characterized in that, described liquid cooling heat radiator is located near server chips, or directly contacts with server chips.
9. the air-cooled server radiating system naturally cooling heat pipe air conditioner and liquid cooling apparatus combination according to claim 1 ~ 8 any one, it is characterized in that, when described water ring natural cooling heat exchange device is connected on the connecting line of inner ring road, the operation method of described server radiating system is as follows:
1) when environment temperature is more than 20 DEG C, cooling-water machine is opened, air-cooled natural cooling heat exchange device is out of service, the bypass aperture of motorized adjustment refrigerant valve is 0%, internal circulation heat-exchanging medium does not flow through air-cooled natural cooling heat exchange device, axial flow blower is also in halted state, and the cold needed for internal circulation heat-exchanging medium condenses is all provided by secondary heat exchange by condenser and cooling-water machine;
2) when environment temperature is 0 ~ 20 DEG C, cooling-water machine and air-cooled natural cooling heat exchange device all open operation, the bypass aperture of motorized adjustment refrigerant valve is 100%, all internal circulation heat-exchanging media first flow through air-cooled natural cooling heat exchange device, utilize axial flow blower and carry out heat radiation precooling with the forced-convection heat transfer inner loop heat transferring medium of natural cooling heat exchange coil pipe, internal circulation heat-exchanging medium flows through condenser more further, and the low temperature external circulation heat exchanging medium that residue condenser heat is provided by cooling-water machine and water pump is taken away;
3) when environment temperature is below 0 DEG C, cooling-water machine is out of service, air-cooled natural cooling heat exchange device is opened and is run, the bypass aperture of motorized adjustment refrigerant valve first remains 100%, all internal circulation heat-exchanging media flow through air-cooled natural cooling heat exchange device, and regulate nature to cool the cold produced by the rotating speed of regulating shaft flow fan;
4) when environment temperature is extremely low, axial flow blower be in minimum speed under, the cold that produces of cooling is still bigger than normal when namely internal circulation heat-exchanging medium outlet temperature is below 12 DEG C naturally, then retainer shaft flow fan stable operation under minimum speed, and the cold produced by regulating the bypass aperture of motorized adjustment refrigerant valve to control nature cooling.
10. the air-cooled server radiating system naturally cooling heat pipe air conditioner and liquid cooling apparatus combination according to claim 1 ~ 8 any one, it is characterized in that, when described water ring natural cooling heat exchange device is connected in parallel on the connecting line of inner ring road, the operation method of described server radiating system is as follows:
11) when environment temperature is more than 0 DEG C, cooling-water machine is opened, air-cooled natural cooling heat exchange device is out of service, the bypass aperture of motorized adjustment refrigerant valve is 0%, internal circulation heat-exchanging medium does not flow through air-cooled natural cooling heat exchange device, axial flow blower is also in halted state, cold needed for internal circulation heat-exchanging medium condenses, is all provided by secondary heat exchange by condenser and cooling-water machine;
12) when environment temperature is below 0 DEG C, cooling-water machine is out of service, air-cooled natural cooling heat exchange device is opened and is run, the bypass aperture of motorized adjustment refrigerant valve first remains 100%, all internal circulation heat-exchanging media flow through air-cooled natural cooling heat exchange device, and regulate nature to cool the cold produced by the rotating speed of regulating shaft flow fan;
13) when environment temperature is extremely low, axial flow blower be in minimum speed under, the cold that produces of cooling is still bigger than normal when namely internal circulation heat-exchanging medium outlet temperature is below 12 DEG C naturally, then retainer shaft flow fan stable operation under minimum speed, and the cold produced by regulating the bypass aperture of motorized adjustment refrigerant valve to control nature cooling.
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| CN112601416A (en) * | 2020-09-30 | 2021-04-02 | 天津商业大学 | Heat dissipation device and cabinet |
| WO2022183857A1 (en) * | 2021-03-03 | 2022-09-09 | 河北秦淮数据有限公司 | Extended-range refrigeration system for data center, and data center |
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| CN115529786A (en) * | 2021-06-24 | 2022-12-27 | 辉达公司 | Hybrid cooling system for data center |
| CN113904500A (en) * | 2021-09-03 | 2022-01-07 | 广州智光节能有限公司 | Motor assembly |
| CN113904500B (en) * | 2021-09-03 | 2024-02-02 | 广州智光节能有限公司 | Motor assembly |
| CN114245654A (en) * | 2021-09-18 | 2022-03-25 | 苏州浪潮智能科技有限公司 | Server and liquid cooling heat exchange system thereof |
| CN114245654B (en) * | 2021-09-18 | 2024-01-19 | 苏州浪潮智能科技有限公司 | Server and liquid cooling heat exchange system thereof |
| CN114710931A (en) * | 2022-03-28 | 2022-07-05 | 北京百度网讯科技有限公司 | Refrigeration system and liquid cooling cabinet of a data center |
| CN114867306A (en) * | 2022-05-09 | 2022-08-05 | 中网电(北京)节能科技有限公司 | An energy-saving liquid cooling system for 5G base station computer room using nanofluid as medium |
| CN118382279A (en) * | 2024-06-27 | 2024-07-23 | 中天宽带技术有限公司 | Wind-liquid composite back door type liquid cooling cabinet |
| CN118382279B (en) * | 2024-06-27 | 2024-08-23 | 中天宽带技术有限公司 | Wind-liquid composite back door type liquid cooling cabinet |
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|---|---|
| CN104699207B (en) | 2019-02-19 |
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Address after: 528313, 8, ten, prosperous road, machinery and equipment garden, Chencun Town, Foshan, Guangdong Applicant after: GUANGDONG SHENLING AIR-CONDITIONING EQUIPMENT CO., LTD. Address before: 528313, 8, ten, prosperous road, machinery and equipment garden, Chencun Town, Foshan, Guangdong Applicant before: Guangdong Shenling Air Conditioning Equipment Co., Ltd. |
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