CN104735959A - Cooling system of cabinet - Google Patents
Cooling system of cabinet Download PDFInfo
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- CN104735959A CN104735959A CN201510057207.7A CN201510057207A CN104735959A CN 104735959 A CN104735959 A CN 104735959A CN 201510057207 A CN201510057207 A CN 201510057207A CN 104735959 A CN104735959 A CN 104735959A
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Abstract
A cooling system of a cabinet comprises an outer circulating system and an inner circulating system. The outer circulating system comprises a cold source, a liquid storage tank and an outer circulating pump, and a working medium inlet pipe and a working medium outlet pipe of the outer circulating system are connected with a middle heat exchanger. The inner circulating system comprises a cabinet inner circulating sub-system, a working medium inlet pipe of the inner circulating system and a working medium outlet pipe of the inner circulating system. The cabinet inner circulating sub-system comprises liquid-cooling radiators, a cabinet inner work medium inlet connected with the working medium inlet pipe of the inner circulating system through an inlet check valve, a cabinet inner working medium return pipe connected with a working medium return pipe of the inner circulating system through an outlet check valve, and an air-cooling radiator. The air-cooling radiator is connected with the cabinet inner working medium inlet pipe and the cabinet inner working medium return pipe, a flow proportion adjusting valve is arranged between the air-cooling radiator and the cabinet inner working medium inlet pipe, the liquid-cooling radiators are connected with the cabinet inner working medium inlet pipe and the cabinet inner working medium return pipe, and a flow proportion adjusting valve is arranged between each liquid-cooling radiator and the cabinet inner working medium inlet pipe. The cooling system has the advantages of being high in cooling efficiency and capable of saving energy.
Description
Technical field
The present invention relates to heat radiation and cooling technology field, more particularly, relate to a kind of cooling system of server cabinet.
Background technology
In communication and IT industry, the electronic device such as server, switch, memory device that standard cabinet is inside is widely applied to provide physics installation environment.In order to the equipment being embodied as interior of equipment cabinet provides heat radiation, a large amount of fan that adopts takes the heat of interior of equipment cabinet out of rack outside, then by equipment such as the air-conditioning in room or blower fans by these transfer of heat to external environment.Along with the hear rate of electronic chip and power device is increasing, when interior of equipment cabinet caloric value constantly increases, adopt the mode of wind-cooling heat dissipating cannot meet the radiating requirements of internal unit.
In order to strengthen radiating effect and reduce environmental noise, people start to adopt the mode of liquid cooling to dispel the heat.The patent No. is that the Chinese invention patent of 201120020096.X discloses a kind of cooling system, this system comprises the unit cooling plug-in box be arranged in frame, unit cooling plug-in box comprises the cold drawing contacted with the heating part of module to be cooled, for the heat of the liquid absorption heating part by its internal flow; Be connected to the heat exchanger of cold drawing, for cooling the liquid in cold drawing; Be connected to the pump of cold drawing and heat exchanger, for driving the circulation of liquid between cold drawing and heat exchanger.The patent No. be 201320018219.5 Chinese invention patent disclose a kind of liquid-cooling heat radiation rack, comprise rack, element veneer, liquid cooling source apparatus, separating tube, collector tube and the liquid cooling heat radiator for absorbing and take away heat, wherein: liquid cooling source apparatus is arranged in rack; The entrance of separating tube and the outlet of collector tube are tightly connected the outlet in liquid cooling source and entrance respectively; Liquid cooling heat radiator is arranged in element veneer, absorbs and takes away the heat that element in element veneer produces; The inlet of liquid cooling heat radiator and liquid outlet are tightly connected the outlet of separating tube and the entrance of collector tube respectively.Aforementioned two kinds of cooling systems are all adopt independently low-temperature receiver, be installed in rack and rack is dispelled the heat, although flexibility is higher, but owing to being subject to spatial limitation in rack, liquid cooling volume source is limited, when after operation a period of time, machine in-cabinet temperature raises, or during high power device work, radiating effect that liquid cooling source provides possibly cannot satisfy the demands, and cannot adjust flux to adapt to different situations.
Publication number is a kind of server cabinet disclosed in the Chinese invention patent application of CN102378551A, server is provided with in rack, liquid cooling heat radiation system comprises is located at refrigerator outside rack and by heat-conducting plate and the hot linked pipeline of refrigerator, heat-conducting plate to be arranged in rack and near server, the heat produced during server work forms hot-fluid, hot-fluid cools at heat-conducting plate place, pipeline extends rack and is also connected with the opposite end of refrigerator respectively outward, heat exchange is carried out so that heat-conducting plate is passed to refrigerator from the heat that server absorbs, the heat of server is to heat-conducting plate by transfer of air, and then by the heat transmitter with heat-conducting plate laminating by heat transmission.
Publication number is that the Chinese invention patent application of CN103052304A also 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 cooling system is also be delivered in water by air radiator by heat, pass through liquid reserve tank again, the exchange heat of external condensation system is dispelled the heat.
Publication number is relate to a kind of cooling system in the Chinese invention patent application of CN102364406A, be made up of rack liquid cooling unit, automatically controlled dynamic regulating valve, microprocessor, cooling pipe and outdoor handpiece Water Chilling Units five part, cooling pipe comprises the primary cycle system and secondary cycle system of being isolated by heat exchanger, primary cycle system provides cold supply for whole cooling system, and the heat absorbed from rack is carried out exchange heat with primary cycle system by secondary cycle system in heat exchanger.
Aforementioned several cooling system is divided into air-cooled cooling and liquid cooling to cool two types substantially, and the device wherein in air cooling system and the exchange heat between liquid cooling unit are by air transmitted, and efficiency is not high; And liquid cooling cooling system is when the outer pipeline of rack breaks down or be abnormal, all cold drawings in rack will quit work, and easily cause machine in-cabinet temperature and device temperature rapid temperature increases, cause damage, and cannot regulate the flow of rack internal duct.And when reality uses, both the heat generation density not air-cooled just soluble device of high pass had been there is in rack, also there is the high device needing could to be cooled by water-cooled of heat generation density simultaneously, the scheme of the heat radiation that simultaneously can ensure this two classes device is not also had in prior art, need independently to arrange water-cooled or air-cooled external cooling mode, ensure the normal work of whole rack.Air-cooled side mostly adopts multicomputer to back up, and provides emergent heat radiation during fault, and in liquid cooling mode, the fault of cooling main pipeline often causes large-area rack Thermal protection to shut down, thus brings massive losses.
Summary of the invention
The object of this invention is to provide that a kind of radiating efficiency is high, the cooling system for computer case of good heat dissipation effect.
To achieve these goals, the present invention takes following technical solution:
The cooling system of rack, comprise external circulating system and internal circulation system, the outer circulation pump that described external circulating system comprises low-temperature receiver, the fluid reservoir be connected with described low-temperature receiver and is arranged on external circulating system pipeline, external circulating system working medium inlet pipe to pick out and by being connected with Intermediate Heat Exchanger after cold storage tank, external circulating system working medium return pipe is connected with low-temperature receiver after Intermediate Heat Exchanger picks out from low-temperature receiver, the internal circulation system working medium return pipe that described internal circulation system comprises the rack Inner eycle subsystem be arranged in rack, connect the internal circulation system working medium inlet pipe of rack Inner eycle subsystem and Intermediate Heat Exchanger, be connected rack Inner eycle subsystem and Intermediate Heat Exchanger, described rack Inner eycle subsystem comprises at least one liquid cooling heat radiator, working medium inlet pipe in the rack be connected with described internal circulation system working medium inlet pipe by inlet shutoff valve, working medium return pipe in the rack be connected with described internal circulation system working medium return pipe by outlet shutoff valve, and air-cooled radiator, described air-cooled radiator is connected with working medium return pipe in working medium inlet pipe in described rack and rack respectively, flow proportional adjuster valve is provided with between working medium inlet pipe in described air-cooled radiator and rack, described liquid cooling heat radiator is connected with working medium return pipe in working medium inlet pipe in described rack and described rack respectively, flow proportional adjuster valve is provided with between working medium inlet pipe in each liquid cooling heat radiator and rack.
In order to realize the present invention better, also comprise the self-circulating pump be arranged on the pipeline connecting described inlet shutoff valve output and described outlet shutoff valve input.
In order to realize the present invention better, also comprising the bypass line be connected with working medium return pipe in rack with working medium inlet pipe in described rack, described bypass line is provided with by-pass valve.
In order to realize the present invention better, described low-temperature receiver comprises main cooling unit and secondary cooling unit, and described main cooling unit is active cooling unit, and described pair cooling unit is passive cooling unit.
In order to realize the present invention better, described rack Inner eycle subsystem adopts reversed return type line arrangement.
In order to realize the present invention better, described internal circulation system comprises one or more rack Inner eycle subsystems, in the rack of inlet shutoff valve rear end, working medium inlet pipe is connected with cold storage tank in described rack Inner eycle subsystem.
In order to realize the present invention better, the peak of each rack is provided with the automatic exhaust steam valve be communicated with working medium return pipe in rack, and described automatic exhaust steam valve is connected with Constant pressure tank.
In order to realize the present invention better, described liquid cooling heat radiator comprises the heat-radiating substrate, the heat pipe be connected with heat-radiating substrate and the concentrated cooling water pipe be connected with multiple heat pipe that contact with electronic device surface; Described heat pipe is spaced, and the condensation segment of heat pipe stretches in described concentrated cooling water pipe, with described concentrated cooling water pipe and is tightly connected; Described concentrated cooling water pipe comprises cooling water pipe main body that cooling fluid is housed and goes out to manage with the cooling fluid inlet pipe be communicated with in described cooling water pipe main body and cooling fluid respectively, and described cooling fluid inlet pipe and cooling fluid go out pipe and be connected with rack Inner eycle subsystem.
In order to realize the present invention better, in described concentrated cooling water pipe, cooling fluid arrival end and cooling liquid outlet end are respectively arranged with shunt.
In order to realize the present invention better, be provided with spaced apart central dividing plate in described concentrated cooling water pipe, described central dividing plate is arranged along coolant flow direction, and the condensation segment of described heat pipe stretches to by the separated space of central dividing plate.
In order to realize the present invention better, the dislocation of described heat pipe interval is connected with described concentrated cooling water pipe.
From above technical scheme, there are in rack of the present invention liquid cooling and air-cooled two type radiators, the high liquid cooling heat radiator of heat exchange efficiency provides heat radiation for the device that caloric value is large, air-cooled radiator provides wind-cooling heat dissipating for the device that in rack, other cannot be connected to liquid cooling heat radiator, ensure that in rack, other does not access the working temperature of the device of liquid cooling heat radiator, synchronously meet the demand of the air-cooled and liquid cooling in rack, and arrange between working medium inlet pipe in each liquid cooling/air-cooled radiator and rack and all have flow proportional adjuster valve, can export according to the cold of the temperature of each radiator by this radiator branch road of flow proportional adjuster valve fine adjustment, avoid occurring that local radiator underfed causes overheated phenomenon to occur.In addition, also can independently self-circulating pump be set in rack, makes rack have independently inner self-circulation system, when external circulating system pipeline breaks down, inner self-loopa can be started.Also further bypass circulation can be set on the pipeline of rack Inner eycle subsystem simultaneously, changed the pipeline state of rack Inner eycle subsystem by bypass circulation according to equipment state, regulate pipeline inner stream flow, when avoiding low load, in pipeline, flow is excessive, causes waste.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention, simple introduction is done below by the accompanying drawing used required in embodiment or description of the prior art, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram of the embodiment of the present invention 1 liquid cooling heat radiation system;
Fig. 2 is the schematic diagram of the embodiment of the present invention 1 internal circulation system
Fig. 3 is the structural representation of the embodiment of the present invention 2 liquid cooling heat radiator
Fig. 4 is the structural representation along arrow A direction in Fig. 3;
Fig. 5 is the structural representation of the embodiment of the present invention 3 liquid cooling heat radiator;
Fig. 6 is the structural representation along arrow B direction in Fig. 5.
Embodiment
Describe the present invention below in conjunction with accompanying drawing; when describing the embodiment of the present invention in detail, for ease of illustrating, represent that the accompanying drawing of device architecture can be disobeyed general ratio and be done partial enlargement; and described schematic diagram is example, it should not limit the scope of protection of the invention at this.It should be noted that, accompanying drawing all adopts the form that simplifies very much and all uses non-ratio accurately, only in order to object that is convenient, the clearly aid illustration embodiment of the present invention.
Embodiment 1
As depicted in figs. 1 and 2, in Fig. 1, Fig. 2, pipeline shown in solid line is working medium inlet pipe, pipeline shown in dotted line is working medium return pipe, circulate in pipeline refrigeration working medium, comprise the fluid of phase transformation or non-phase transformation, cooling system comprises external circulating system and internal circulation system, and external circulating system comprises the low-temperature receiver be made up of with secondary cooling unit 2 main cooling unit 1, the cold storage tank 3 be connected with low-temperature receiver, is connected between external circulating system with internal circulation system by Intermediate Heat Exchanger 4.External circulating system working medium inlet pipe a is connected with Intermediate Heat Exchanger 4 by after cold storage tank 3, external circulating system working medium return pipe b is connected with low-temperature receiver after Intermediate Heat Exchanger 4 picks out, access main cooling unit 1 and secondary cooling unit 2 respectively, external circulating system working medium return pipe b is provided with outer circulation pump X, the external circulating system working medium inlet pipe be connected with main cooling unit 1 and cool in external circulating system working medium inlet pipe that unit 2 is connected with pair be respectively arranged with break valve S before accessing cold storage tank 3.Main cooling unit is active cooling unit, and secondary cooling unit is passive cooling unit, and secondary cooling unit can adopt open cooling tower or the dry and cold device of enclosed, and unnecessary cold is stored by cold storage tank 3.Adopt two cover units can realize fault backup and the energy-saving run of low-temperature receiver side.
The internal circulation system working medium return pipe d that internal circulation system comprises the rack Inner eycle subsystem be arranged in rack 100, connect the internal circulation system working medium inlet pipe c of rack Inner eycle subsystem and Intermediate Heat Exchanger 4, be connected rack Inner eycle subsystem and Intermediate Heat Exchanger 4, the quantity of rack Inner eycle subsystem is corresponding with rack quantity, can be one or more.Rack Inner eycle subsystem to comprise at least one liquid cooling heat radiator (liquid cooling plate) 5, rack working medium return pipe f in working medium inlet pipe e, rack, self-circulating pump 6, is arranged at inlet shutoff valve Q1 in rack on working medium inlet pipe e, is arranged at outlet shutoff valve Q2 in rack on working medium return pipe f and bypass line, and rack Inner eycle subsystem adopts reversed return type line arrangement.In rack, working medium inlet pipe e is connected with internal circulation system working medium inlet pipe c by inlet shutoff valve Q1, and in rack, working medium return pipe f is connected with internal circulation system working medium return pipe d by outlet shutoff valve Q2.Liquid cooling heat radiator 5 is connected with working medium return pipe f in working medium inlet pipe e in rack and rack respectively, liquid is flowed in liquid cooling heat radiator, in each liquid cooling heat radiator 5 and rack, is provided with flow proportional adjuster valve M between working medium inlet pipe e.Liquid cooling heat radiator 5 is arranged on heater members, with heater members and directly contacts, thus is directly conducted in the cold-producing medium in radiator by the heat that heater members produces, and improves radiating efficiency.Liquid cooling heat radiator 5 is provided with temperature sensor 7.Self-circulating pump 6 is arranged on the pipeline of the output of connection inlet shutoff valve Q1 and the input of outlet shutoff valve Q2, the input of self-circulating pump 6 is connected with a unidirectional valve (non-label), when inlet shutoff valve Q1 and outlet shutoff valve Q2 closes, rack Inner eycle subsystem can form a closed cycle system, and self-circulating pump 6 can realize the self-loopa of interior of equipment cabinet pipeline.The pipeline of rack Inner eycle subsystem can also arrange the expansion tank be connected with self-circulating pump, better to ensure the effect of self-loopa in rack.Between the pipeline of rack Inner eycle subsystem, be provided with bypass line, bypass line be provided with by-pass valve P, by-pass valve P opening/closing makes bypass line access in circulation line or side is put.As low in worked as rack internal burden, when namely device work is few, by-pass valve P can be opened, regulate the pipeline of rack Inner eycle subsystem, reduce the refrigerant liquid flowing to device low in calories or idle device in pipeline, most of liquid is flowed in circulation line by bypass line, reaches the object of saving cold.Bypass line is connected with working medium return pipe f in working medium inlet pipe e in rack and rack, its position adjusts according to the distribution of electronic device in rack and liquid cooling heat radiator, when being provided with high power radiation device and low-power radiator in rack, bypass line is generally connected on the pipeline between high power radiation device and low-power radiator.The peak of each rack is provided with the automatic exhaust steam valve R be communicated with working medium return pipe f in rack, and automatic exhaust steam valve R is connected with Constant pressure tank, ensures that channel interior gas discharges smoothly.
As a preferred embodiment of the present invention, cabinet door is also provided with air-cooled radiator 8, air-cooled radiator 8 is connected with working medium return pipe f in working medium inlet pipe e, rack in rack respectively, air-cooled radiator 8 is provided with temperature sensor equally, in itself and rack, between working medium inlet pipe e, is also provided with flow proportional adjuster valve M.On other positions that air-cooled radiator can also be arranged at rack or electronic device, air-cooled radiator provides wind-cooling heat dissipating for the device that in rack, other cannot be connected to liquid cooling heat radiator, ensure that in rack, other does not access the working temperature of the device of liquid cooling heat radiator, synchronously meets the demand of the air-cooled and liquid cooling in rack.
The present invention is by gathering the temperature of each radiator in rack, regulate rack bulk flow, and exported by the cold of this radiator branch road of flow proportional adjuster valve fine adjustment according to the temperature of each radiator, do not consider assignment of traffic on each radiator branch road to avoid only distributing the flow of each cabinet system and occur that local radiator underfed causes overheated phenomenon to occur.And, the present invention can arrange the different liquid cooling heat radiator of power in rack, these liquid cooling heat radiator correspondences are arranged on the different device of caloric value, when the radiator that integrated power in rack is different, flow on each branch road at radiator place is different, on the basis that rack bulk flow distributes, is regulated the flow of each branch road by flow proportional adjuster valve, avoid the flow occurring integrating cabinet reduce or increase, totally cannot ensure flow.
There is in rack of the present invention independently inner self-circulation system, when external circulating system pipeline breaks down, inner self-loopa can be started, set apart and carry out self-protection or data backup to software systems, avoid device temperature rapid temperature increases, cause damage.For high heat generation density rack or the extremely important rack of internal data; inner going back independently arranges cold storage tank 10 (Fig. 1); according to the size of the caloric value configuration cold storage tank in cabinet; inner integrated cooling storage material is cooling backup protection when core rack provides external fault further.And bypass circulation is set on the pipeline of rack Inner eycle subsystem, avoid when Flow-rate adjustment is excessive, inner stream flow is uncontrollable.
Embodiment 2
As shown in Figure 3 and Figure 4, the liquid cooling heat radiator 5 of the present embodiment comprises heat-radiating substrate 5-1, heat pipe 5-2 and concentrated cooling water pipe 5-3.Heat-radiating substrate 5-1 contacts with electronic device surface to be dispelled the heat.Heat pipe 5-2 is connected with heat-radiating substrate 5-1, same as the prior art, and heat pipe 5-2 comprises heat pipe evaporator section 5-2a and heat pipe condenser section 5-2b, and heat pipe inner wall is provided with capillary pipe structure.Heat pipe evaporator section 5-2a is connected with heat-radiating substrate 1, and the heat on electronic device surface dispels the heat to heat pipe evaporator section 5-2a conduction by heat-radiating substrate 5-1.Heat pipe condenser section 5-2b stretches in concentrated cooling water pipe 5-3, is tightly connected with concentrated cooling water pipe 5-3.The present embodiment adopts sealing nut 5-4 to be connected with concentrated cooling water pipe 5-3 by heat pipe 5-2, and the mode of welding also can be adopted between the two to be connected.Heat pipe condenser section can adopt the liquid cooling not producing phase transformation or the liquid cooling mode producing phase transformation.A concentrated cooling water pipe 5-3 is connected with multiple heat pipe 5-2.
The cooling water pipe main body 5-3a concentrating cooling water pipe 5-3 to comprise cooling fluid is housed, go out pipe 5-3c with the interior cooling fluid inlet pipe 5-3b that is communicated with of cooling water pipe main body 5-3a and cooling fluid, cooling fluid inlet pipe 5-3b and cooling fluid go out pipe 5-3c and are connected with working medium return pipe in rack with working medium inlet pipe in the rack of rack Inner eycle subsystem respectively, make the cooling fluid of circulation cycle in cooling water pipe main body 5-3a, thus the condensation segment of opposite heat tube carries out cooling.In cooling water pipe main body 5-3a, cooling fluid arrival end and cooling liquid outlet end are respectively arranged with shunt 5-3d, shunt 5-3d is connected with cooling fluid inlet pipe 5-3b, the cooling fluid entering concentrated cooling water pipe 5-3 from cooling fluid inlet pipe 5-3b is divided into the tributary flowing to different directions through shunt 5-3d, to ensure that cooling fluid can each heat pipe condenser section of average flow direction, make the homogeneous temperature of each heat pipe condenser section.Spaced apart central dividing plate 5-3e is also set in concentrated cooling water pipe 5-3 simultaneously, central dividing plate 5-3e is arranged along coolant flow direction (vertical direction in Fig. 3), be some column spaces by concentrated cooling water pipe 5-3 interior separation, each row is upper arranges multiple heat-pipe radiator, heat pipe in concentrated cooling water pipe separates by central dividing plate 5-3e, after cooling fluid enters concentrated cooling water pipe 5-3, streamwise enters in each row respectively, ensures that the condensation end (radiating end) of each heat pipe is cooled by the feed liquor temperature of same temperature.
Embodiment 3
With reference to Fig. 4 and Fig. 5, the present embodiment place different from embodiment 2 is: concentrate in cooling water pipe and do not arrange central dividing plate, cooling water pipe 5-3 is concentrated to be connected with multiple heat pipe 5-2, the dislocation of heat pipe 5-2 interval is arranged, the heat-pipe radiator 2 of cooling fluid through being staggeredly arranged entered in concentrated cooling water pipe 5-3 from shunt 5-3d flows to cooling fluid and goes out pipe 5-3c, make the condensation end of each heat pipe can be cooled by the feed liquor temperature of same temperature as much as possible, ensure radiating effect.
Adopt and concentrate cooling water pipe to carry out concentrating heat radiation to multiple heat pipe simultaneously, liquid circulation circulates in concentrated cooling water pipe, once can dispel the heat for multiple electronic device, reduce the volume of liquid cooling heat radiator, improve heat exchange efficiency, thus the condensation end of heat pipe can be shortened, reduce integral heat pipe volume, reduce the manufacturing cost of liquid cooling heat radiator itself.
Compared with prior art, the present invention has following characteristics:
1, integrating cabinet entirety employing liquid cooling mode, can adopt phase transformation or without phase transformation liquid cooling, more air-cooled heat exchange density increases hundreds of times, can reach the heat dissipation capacity of single cabinet 100kW.
2, cooling system divides Inner eycle and outer circulation, and Inner eycle adopts closed system, thus ensures that the cleaning of cooling fluid is with reliable; Outer circulation can environmentally adopt open type or closed system, also can make full use of cooling storage or other type of cooling for Inner eycle and provide high efficiency cooling.
3, because entirety adopts liquid cooling, therefore the water side temperature of complete machine can reach 70 ~ 90 degree, dispels the heat the temperature difference greatly, extraneous low-temperature receiver can be utilized to dispel the heat, thus reduce the power consumption of whole cooling system with external environment; When ambient temperature height, main cooling unit can be utilized to provide low-temperature receiver for system, intrasystem cooling storage tank can according to the loading condition of every day, utilize night dip electricity price to open active cooling unit and store certain cold, ensure the operation on its daytime, thus reduce the operation energy consumption of whole system further.
4, the temperature of each radiator is gathered, the input flow rate of Central Regulation integrating cabinet, and by the flow proportional adjuster valve accurate flow adjustment of each radiator, thus reduce overall power consumption.
5, independently self-circulating pump is adopted, when main road breaks down, can short-term operation, the temperature rise of chip is unlikely too fast, carries out software backup or normal shutdown provides the valuable time for internal unit.
6, for core rack, on the basis of aforementioned arrangements, in the rack of inlet shutoff valve rear end, working medium inlet pipe connects an independent cold storage tank, according to heat load in rack and standby cool time requirement, configure inner cooling storage material number, and when the main cooling line fault of Inner eycle, closedown rack working medium is entered, return pipe road, utilize self-circulation system, utilize the cold in cold storage tank to provide the time of data or business transfer for internal unit, realize normal shutdown.
Above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit, although with reference to above-described embodiment to invention has been detailed description, those of ordinary skill in the field are to be understood that, still can modify to the specific embodiment of the present invention or equivalent replacement, and not departing from any amendment of spirit and scope of the invention or equivalent replacement, it all should be encompassed among right of the present invention.
Claims (10)
1. the cooling system of rack, comprises external circulating system and internal circulation system, it is characterized in that:
The outer circulation pump that described external circulating system comprises low-temperature receiver, the fluid reservoir be connected with described low-temperature receiver and is arranged on external circulating system pipeline, external circulating system working medium inlet pipe to pick out and by being connected with Intermediate Heat Exchanger after cold storage tank, external circulating system working medium return pipe is connected with low-temperature receiver after Intermediate Heat Exchanger picks out from low-temperature receiver;
The internal circulation system working medium return pipe that described internal circulation system comprises the rack Inner eycle subsystem be arranged in rack, connect the internal circulation system working medium inlet pipe of rack Inner eycle subsystem and Intermediate Heat Exchanger, be connected rack Inner eycle subsystem and Intermediate Heat Exchanger, described rack Inner eycle subsystem comprises at least one liquid cooling heat radiator, working medium inlet pipe in the rack be connected with described internal circulation system working medium inlet pipe by inlet shutoff valve, working medium return pipe in the rack be connected with described internal circulation system working medium return pipe by outlet shutoff valve, and air-cooled radiator, described air-cooled radiator is connected with working medium return pipe in working medium inlet pipe in described rack and rack respectively, flow proportional adjuster valve is provided with between working medium inlet pipe in described air-cooled radiator and rack, described liquid cooling heat radiator is connected with working medium return pipe in working medium inlet pipe in described rack and described rack respectively, flow proportional adjuster valve is provided with between working medium inlet pipe in each liquid cooling heat radiator and rack.
2. the cooling system of rack as claimed in claim 1, is characterized in that: also comprise the self-circulating pump be arranged on the pipeline connecting described inlet shutoff valve output and described outlet shutoff valve input.
3. the cooling system of rack as claimed in claim 1, is characterized in that: also comprise the bypass line be connected with working medium return pipe in rack with working medium inlet pipe in described rack, described bypass line is provided with by-pass valve.
4. the cooling system of rack as claimed in claim 1, is characterized in that: described low-temperature receiver comprises main cooling unit and secondary cooling unit, and described main cooling unit is active cooling unit, and described pair cooling unit is passive cooling unit.
5. the cooling system of rack as claimed in claim 1, is characterized in that: described rack Inner eycle subsystem adopts reversed return type line arrangement.
6. the cooling system of rack as claimed in claim 1, it is characterized in that: described internal circulation system comprises one or more rack Inner eycle subsystems, in described rack Inner eycle subsystem, in the rack of inlet shutoff valve rear end, working medium inlet pipe is connected with cold storage tank.
7. the cooling system of rack as claimed in claim 1, is characterized in that: the peak of each rack is provided with the automatic exhaust steam valve be communicated with working medium return pipe in rack, and described automatic exhaust steam valve is connected with Constant pressure tank.
8. the cooling system of rack as claimed in claim 1, is characterized in that: described liquid cooling heat radiator comprises the heat-radiating substrate, the heat pipe be connected with heat-radiating substrate and the concentrated cooling water pipe be connected with multiple heat pipe that contact with electronic device surface; Described heat pipe is spaced, and the condensation segment of heat pipe stretches in described concentrated cooling water pipe, with described concentrated cooling water pipe and is tightly connected; Described concentrated cooling water pipe comprises cooling water pipe main body that cooling fluid is housed and goes out to manage with the cooling fluid inlet pipe be communicated with in described cooling water pipe main body and cooling fluid respectively, and described cooling fluid inlet pipe and cooling fluid go out pipe and be connected with rack Inner eycle subsystem.
9. the cooling system of rack according to claim 8, is characterized in that: in described concentrated cooling water pipe, cooling fluid arrival end and cooling liquid outlet end are respectively arranged with shunt.
10. the cooling system of rack according to claim 8 or claim 9, it is characterized in that: in described concentrated cooling water pipe, be provided with spaced apart central dividing plate, described central dividing plate is arranged along coolant flow direction, and the condensation segment of described heat pipe stretches to by the separated space of central dividing plate; Or do not arrange central dividing plate in described concentrated cooling water pipe, the dislocation of described heat pipe interval is connected with described concentrated cooling water pipe.
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| CN201510057207.7A CN104735959B (en) | 2015-02-02 | 2015-02-02 | The cooling system of rack |
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| CN201510057207.7A CN104735959B (en) | 2015-02-02 | 2015-02-02 | The cooling system of rack |
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| CN104735959B CN104735959B (en) | 2017-07-18 |
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| CN106465562A (en) * | 2015-10-23 | 2017-02-22 | 华为技术有限公司 | Heat pipe cooling system and power equipment |
| CN106643274A (en) * | 2016-11-15 | 2017-05-10 | 曙光节能技术（北京）股份有限公司 | Cooling system |
| CN106793697A (en) * | 2016-12-27 | 2017-05-31 | 曙光信息产业(北京)有限公司 | For the heat abstractor and group of switches of group of switches |
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| WO2018145366A1 (en) * | 2017-02-10 | 2018-08-16 | 北京纳源丰科技发展有限公司 | Liquid-cooling heat pipe radiator system for cabinet server and control method therefor |
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