CN104703448A - Server cabinet cooling system with combined gate-type cold water heat exchange device and liquid cooling device - Google Patents
Server cabinet cooling system with combined gate-type cold water heat exchange device and liquid cooling device Download PDFInfo
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Abstract
The invention discloses a server cabinet cooling system with combined gate-type cold water heat exchange device and liquid cooling device. The 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 cooling device is arranged to perform direct liquid cooling heat dissipation on the servers; the gate-type cold water heat exchange device is further arranged to realize auxiliary heat dissipation. The server cabinet cooling system is high in cooling density, high in heat exchange efficiency, low in energy consumption, capable of solving local heat spots, small in floor area, high in reliability, low in noise and long in service life.
Description
Technical field
The present invention relates to server cabinet cooling system, particularly relate to the server cabinet cooling system of a kind of described gate-type cold water heat-exchanger rig 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 disposal ability also increases gradually, but the power consumption of equipment also increases thereupon, causes the caloric value of equipment within machine cabinet more.According to statistics, in current domestic large-scale IDC machine room, equipment cabinet server caloric 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 caloric 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 key technology 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 caloric 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 gross 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.
The application number Chinese patent that to be 201010261284.1 patent names be " server cabinet and liquid cooling heat radiation system thereof " discloses a kind of server cabinet, comprise shell, be located at the server in described shell and liquid cooling heat radiation system, the heat-conducting plate near described server is provided with in described shell, described liquid cooling heat radiation system comprises is located at refrigerator outside described shell and by described heat-conducting plate and the hot linked pipeline of refrigerator, the heat produced during described server work forms hot-fluid in described shell, described hot-fluid cools at heat-conducting plate place, described pipeline extends outside described shell, and be connected with the opposite end of described refrigerator respectively, heat exchange is carried out so that described heat-conducting plate is passed to refrigerator from the heat that server absorbs.Although this patent is also adopt liquid-cooling heat radiation, the heat of server is indirectly absorbed by heat-conducting plate to take out of, and its cooling effect is not obvious, causes the heat of server not taken away by liquid cooling heat radiation system efficiently, therefore have the problems such as hot localised points, life-span be short.
The application number Chinese patent that to be 201210545675.5 patent names be " a kind of server cabinet cooling system " discloses a kind of server cabinet cooling system, comprise the liquid cooling case being placed in server cabinet inside, water-filled radiator in server cabinet, air radiator in cabinet, first liquid reserve tank and outdoor external condensation system, liquid cooling case comprises the finned heat exchanger be integrated in a case, plate heat exchanger and the first water pump, plate heat exchanger hot water side, first water pump, in first liquid reserve tank and server cabinet, water-filled radiator connects into the first circulation circuit by pipeline, external condensation system, air radiator in cabinet, finned heat exchanger and plate heat exchanger cold water side connect into the second circulation circuit by pipeline.This patent adopts the second circulation circuit to take away the heat of the first circulation circuit, but the radiator of the first circulation circuit carries out heat conduction to whole server cabinet inner air, there is no and directly carry out heat conduction for server heater chip, this causes, and this patent radiating efficiency is low, weak effect, in addition, first circulation circuit is provided with the first water pump, generate heat during the first water pump operation more, need to arrange heat exchanger specially to transmit the heat that the first water pump operation gathers, this causes burden to system undoubtedly, thus reduces the radiating efficiency of system further.
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 server cabinet cooling system combined without the need to the gate-type cold water heat-exchanger rig transformed rack and liquid cooling apparatus.
Above-mentioned purpose of the present invention is achieved by following technical solution:
The server cabinet cooling system that a kind of gate-type cold water heat-exchanger rig and liquid cooling apparatus combine, comprise liquid cooling server cabinet, described liquid cooling server cabinet comprises rack cabinet and is arranged at the multiple liquid cooling servers in rack cabinet, be provided with liquid cooling apparatus and direct liquid-cooling heat radiation is carried out to liquid cooling server, be also provided with gate-type cold water heat-exchanger rig and carry out auxiliary heat dissipation.The present invention carries out main refrigeration by adopting liquid-cooling heat radiation technology, cabinet-level high temperature cold water heat dissipation 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, distributor, current collector and a heat transferring medium, described liquid cooling heat radiator is used for dispelling the heat to server chips, described distributor 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, a described heat transferring medium enters liquid cooling heat radiator by distributor and feed liquor connecting branch, then collected by current collector by fluid connecting branch efflux cold heat sink.One time heat transferring medium enters liquid cooling heat radiator by distributor by feed liquor connecting branch, then by fluid connecting branch enter current collector formed circulation the heat of liquid cooling server is taken away.
Further, described liquid cooling apparatus is external to be arranged on rack cabinet.Adopt fixed or movable installation, preferred fixed installation.
A described heat transferring medium is running water, pure water, organic solution, inorganic solution or freon.Preferred employing pure water.Described feed liquor connecting branch and fluid connecting branch are hard state tube or soft state pipe.Preferred soft state pipe.
Described liquid cooling heat radiator is located near server chips, or directly contacts with server chips.
Described gate-type cold water heat-exchanger rig comprises cold-water heat exchanger, connecting line and secondary heat exchange medium, and described cold-water heat exchanger is arranged on liquid cooling server cabinet or liquid cooling apparatus, and loads secondary heat exchange medium by connecting line.Particularly, described cold-water heat exchanger is arranged on front reveal or the tailgate side of rack cabinet, is preferably mounted at tailgate side; Full aluminium micro-channel heat exchanger or copper pipe cover aluminum fin-stock heat exchanger can be adopted, preferably copper pipe box aluminum fin-stock heat exchanger.In addition, described cold-water heat exchanger can turn and open by axle, and the water inlet tube connector of cold-water heat exchanger and water outlet tube connector all adopt soft state pipe.
Further, described gate-type cold water heat-exchanger rig also comprises blower fan, and described assembling is in the air side of cold-water heat exchanger.Described blower fan can adopt centrifugal, axial-flow type, mixed-flow, preferred axial fan.
Further, described gate-type cold water heat-exchanger rig also comprises cooling-water machine and water pump, and described cooling-water machine and water pump are located at outside machine room, and are connected with cold-water heat exchanger by connecting line.
Secondary heat exchange medium is delivered to cold-water heat exchanger by water pump by described cooling-water machine, then flows back to cooling-water machine by cold-water heat exchanger and form circulation and take away partial heat.Described secondary heat exchange medium is water or anti-freezing solution.
When native system runs, the caloric value of the liquid cooling server chips in liquid cooling server occupies gross calorific power about 80%, this part heat is absorbed by liquid cooling heat radiator, and by flow through liquid cooling heat radiator, a heat transferring medium of temperature about 35 ~ 45 DEG C takes away, and makes the internal temperature of liquid cooling server chips remain on the normal operating condition of 60 ~ 70 DEG C.The assignment of traffic of a heat transferring medium of the liquid cooling heat radiator of each liquid cooling server internal and collecting, complete by liquid cooling apparatus: a heat transferring medium of temperature about 35 ~ 45 DEG C is after feed flow total pipeline inflow distributor, liquid cooling heat radiator is entered by feed liquor connecting branch, after the heat of the cold server chips of absorbing liquid, become 40 ~ 50 DEG C of state of temperatures, enter current collector by fluid connecting branch, flow back to manifold road.
The caloric value of other elements in liquid cooling server occupies gross calorific power about 20%, the air stream that this part heat is produced by the blower fan of the blower fan of server own or gate-type cold water heat-exchanger rig is taken away, after flowing through the cold-water heat exchanger of gate-type cold water heat-exchanger rig, the heat of air stream is by the secondary heat exchange Absorption of Medium 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.After the secondary heat exchange Absorption of Medium heat of 12 ~ 15 DEG C of cold-water heat exchanger inside, temperature is increased to 17 ~ 20 DEG C, enters after cooling-water machine is cooled to the cryogenic fluid of 12 ~ 15 DEG C again, flow back to cold-water heat exchanger, so circulate at water pump circulation power flows by action.
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 high temperature cold water heat dissipation 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 utilance;
(5) system machine room inner without the need to power set, 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 structural representation of the present invention;
Wherein, 1, rack cabinet; 2, liquid cooling server; 3, liquid cooling server chips; 4, liquid cooling heat radiator; 5, current collector; 6, distributor; 7, feed liquor connecting branch; 8, cold-water heat exchanger; 9, blower fan; 13, water pump; 14, cooling-water machine; 15, a heat transferring medium; 16, secondary heat exchange medium; 17, fluid connecting branch; I, liquid cooling server cabinet; II, liquid cooling apparatus; III, gate-type cold water heat-exchanger rig.
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 shown in Figure 1, the server cabinet cooling system that a kind of gate-type cold water heat-exchanger rig and liquid cooling apparatus combine, comprises liquid cooling server cabinet I, liquid cooling apparatus II, gate-type cold water heat-exchanger rig III.Described liquid cooling server cabinet I comprises rack cabinet 1 and liquid cooling server 2, and there are liquid cooling server chips 3 and liquid cooling heat radiator 4 in liquid cooling server 2 inside.Described liquid cooling apparatus II comprises distributor 6, current collector 5 and connecting branch 7.Described gate-type cold water heat-exchanger rig III comprises cold-water heat exchanger 8, blower fan 9, water pump 13 and cooling-water machine 14.The distributor 6 of described liquid cooling apparatus II is connected with liquid cooling server 2 with feed liquor connecting branch 17 respectively by feed liquor connecting branch 7 with current collector 5, and the cold-water heat exchanger 8 of described gate-type cold water heat-exchanger rig III is arranged on liquid cooling apparatus II.
Described liquid cooling apparatus II is external to be arranged on rack cabinet 1, can adopt fixed or movable installation, preferred fixed installation.
The connecting branch 7 of described liquid cooling apparatus II, can adopt hard state tube or soft state pipe, preferred soft state pipe, and the two ends of feed liquor connecting branch 7 and feed liquor connecting branch 17 are tightly connected with liquid cooling server 2, distributor 6 and current collector 5 respectively.
The cold-water heat exchanger 8 of described gate-type cold water heat-exchanger rig III can be arranged on front reveal or the tailgate side of rack cabinet 1, is preferably mounted at tailgate side; The cold-water heat exchanger 8 of gate-type cold water heat-exchanger rig III can turn and open by axle, and the water inlet tube connector of cold-water heat exchanger 8 and water outlet tube connector all adopt soft state pipe.
The blower fan 9 of described gate-type cold water heat-exchanger rig III is arranged on the air side of cold-water heat exchanger 8, and blower fan 9 can adopt centrifugal, axial-flow type, mixed-flow, preferred axial fan; Described cooling-water machine 14, can adopt wind-cooled cold-water machine, water-cooled cooling-water machine or evaporating type condensing cooling-water machine, preferred wind-cooled cold-water machine.
A heat transferring medium 15 of described liquid cooling apparatus II and liquid cooling server 2, can adopt running water, pure water, organic solution, inorganic solution, freon, preferably adopt pure water.
The secondary heat exchange medium 16 of described gate-type cold water heat-exchanger rig III is the high temperature cold water of more than 12 DEG C.
The cold-water heat exchanger 8 of described gate-type cold water heat-exchanger rig III, can adopt full aluminium micro-channel heat exchanger or copper pipe cover aluminum fin-stock heat exchanger, preferably copper pipe box aluminum fin-stock heat exchanger.
When native system runs, the caloric 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, a 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 a 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: a heat transferring medium 15 of temperature about 35 ~ 45 DEG C is after feed flow total pipeline inflow distributor 6, 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 caloric 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 9 of the blower fan of server own or gate-type cold water heat-exchanger rig III is taken away, after flowing through the cold-water heat exchanger 8 of gate-type cold water heat-exchanger rig III, the heat of air stream is absorbed by the secondary heat exchange 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.After the secondary heat exchange medium 16 of 12 ~ 15 DEG C of cold-water heat exchanger 8 inside absorbs heat, temperature is increased to 17 ~ 20 DEG C, enters after cooling-water machine 14 is cooled to the cryogenic fluid of 12 ~ 15 DEG C again, flow back to cold-water heat exchanger 8, so circulate at water pump 13 circulation power flows by action.
Claims (10)
1. the server cabinet cooling system of a gate-type cold water heat-exchanger rig and liquid cooling apparatus combination, comprise liquid cooling server cabinet, described liquid cooling server cabinet comprises rack cabinet and is arranged at the multiple liquid cooling servers in rack 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 gate-type cold water heat-exchanger rig and carry out auxiliary heat dissipation.
2. the server cabinet cooling system of gate-type cold water heat-exchanger rig and liquid cooling apparatus combination according to claim 1, it is characterized in that, described liquid cooling apparatus comprises liquid cooling heat radiator, distributor, current collector and a heat transferring medium, described liquid cooling heat radiator is used for dispelling the heat to server chips, described distributor 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, a described heat transferring medium enters liquid cooling heat radiator by distributor and feed liquor connecting branch, collected by current collector by fluid connecting branch efflux cold heat sink again.
3. the server cabinet cooling system of gate-type cold water heat-exchanger rig and liquid cooling apparatus combination according to claim 1, it is characterized in that, described liquid cooling apparatus is external to be arranged on rack cabinet.
4. the server cabinet cooling system of gate-type cold water heat-exchanger rig and liquid cooling apparatus combination according to claim 2, it is characterized in that, a described heat transferring medium is running water, pure water, organic solution, inorganic solution or freon.
5. the server cabinet cooling system of gate-type cold water heat-exchanger rig and liquid cooling apparatus combination according to claim 2, it is characterized in that, described feed liquor connecting branch and fluid connecting branch are hard state tube or soft state pipe.
6. the server cabinet cooling system of gate-type cold water heat-exchanger rig 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.
7. the server cabinet cooling system of gate-type cold water heat-exchanger rig and liquid cooling apparatus combination according to claim 1, it is characterized in that, described gate-type cold water heat-exchanger rig comprises cold-water heat exchanger, connecting line and secondary heat exchange medium, described cold-water heat exchanger is arranged on liquid cooling server cabinet or liquid cooling apparatus, and loads secondary heat exchange medium by connecting line.
8. the server cabinet cooling system of gate-type cold water heat-exchanger rig and liquid cooling apparatus combination according to claim 7, it is characterized in that, described gate-type cold water heat-exchanger rig also comprises blower fan, and described assembling is in the air side of cold-water heat exchanger.
9. the server cabinet cooling system of gate-type cold water heat-exchanger rig and liquid cooling apparatus combination according to claim 8, it is characterized in that, described gate-type cold water heat-exchanger rig also comprises cooling-water machine and water pump, and described cooling-water machine and water pump are located at outside machine room, and are connected with cold-water heat exchanger by connecting line.
10. the server cabinet cooling system of gate-type cold water heat-exchanger rig and liquid cooling apparatus combination according to claim 7, it is characterized in that, described secondary heat exchange medium is water or anti-freezing solution.
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| CN201510144755.3A CN104703448B (en) | 2015-03-31 | 2015-03-31 | The server cabinet cooling system that gate-type cold water heat-exchanger rig and liquid cooling apparatus combine |
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| CN201510144755.3A CN104703448B (en) | 2015-03-31 | 2015-03-31 | The server cabinet cooling system that gate-type cold water heat-exchanger rig and liquid cooling apparatus combine |
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| CN108307605A (en) * | 2017-01-12 | 2018-07-20 | 伟肯有限公司 | Door cooler |
| CN108598055A (en) * | 2018-05-31 | 2018-09-28 | 南京工业大学 | A kind of Y types liquid cooling heat radiator and complexes suitable for data center module chip cooling technique |
| CN109618541A (en) * | 2019-01-04 | 2019-04-12 | 南京工业大学 | A kind of server installs data center's composite cooling system of heat exchange of heat pipe additional |
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Address after: 528313 Shunde City, Foshan province Chencun town machinery and equipment Park, No. ten, No. Road, No. 8 Applicant after: GUANGDONG SHENLING AIR-CONDITIONING EQUIPMENT CO., LTD. Address before: 528313 Shunde City, Foshan province Chencun town machinery and equipment Park, No. ten, No. Road, No. 8 Applicant before: Guangdong Shenling Air Conditioning Equipment Co., Ltd. |
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