WO2016047099A1 - 冷却装置およびその製造方法 - Google Patents
冷却装置およびその製造方法 Download PDFInfo
- Publication number
- WO2016047099A1 WO2016047099A1 PCT/JP2015/004700 JP2015004700W WO2016047099A1 WO 2016047099 A1 WO2016047099 A1 WO 2016047099A1 JP 2015004700 W JP2015004700 W JP 2015004700W WO 2016047099 A1 WO2016047099 A1 WO 2016047099A1
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- WIPO (PCT)
- Prior art keywords
- refrigerant
- cooling device
- unit
- heat receiving
- pipe
- Prior art date
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20536—Modifications to facilitate cooling, ventilating, or heating for racks or cabinets of standardised dimensions, e.g. electronic racks for aircraft or telecommunication equipment
- H05K7/20663—Liquid coolant with phase change, e.g. heat pipes
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/20—Cooling means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/26—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass heat exchangers or the like
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
- F28D15/0241—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes the tubes being flexible
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
- F28D15/0266—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes with separate evaporating and condensing chambers connected by at least one conduit; Loop-type heat pipes; with multiple or common evaporating or condensing chambers
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20709—Modifications to facilitate cooling, ventilating, or heating for server racks or cabinets; for data centers, e.g. 19-inch computer racks
- H05K7/208—Liquid cooling with phase change
- H05K7/20809—Liquid cooling with phase change within server blades for removing heat from heat source
Definitions
- the present invention relates to a cooling device used for cooling electronic devices and the like, and a method for manufacturing the same, and more particularly, a natural circulation type cooling device that transports and condenses refrigerant vapor that has undergone phase change due to heat reception without using a drive source, and its manufacture. Regarding the method.
- DCs data centers
- the data center (DC) refers to a facility specialized in installing and operating servers and data communication devices.
- the heat generation density from electronic devices is very high, it is necessary to efficiently cool these electronic devices.
- a natural circulation type phase change cooling method As an example of an efficient cooling method for electronic devices and the like, a natural circulation type phase change cooling method is known (for example, see Patent Document 1).
- the natural circulation type phase change cooling method heat generated from a heat source such as an electronic device is received and radiated using latent heat of the refrigerant.
- the refrigerant can be driven to circulate without requiring power by the buoyancy of the refrigerant vapor and the gravity of the refrigerant liquid. Therefore, according to the natural circulation type phase change cooling method, it is possible to cool electronic devices with high efficiency and energy saving.
- Patent Document 1 An example of such a natural circulation type phase change cooling device is described in Patent Document 1.
- the related cooling system described in Patent Document 1 includes an evaporator provided in each of a plurality of servers, a cooling tower provided on the roof of a building, a return pipe (refrigerant gas pipe), and a supply pipe (refrigerant liquid pipe).
- the return pipe and the supply pipe connect between a cooling coil provided in the evaporator and a helical pipe provided in the cooling tower.
- the return pipe returns the refrigerant gas gasified by the evaporator to the cooling tower.
- the supply pipe supplies the refrigerant liquid liquefied by cooling and condensing the refrigerant gas in the cooling tower to the evaporator.
- a circulation line for the natural circulation of the refrigerant is formed between the evaporator and the cooling tower.
- each evaporator is provided with a temperature sensor for measuring the temperature of the wind after the high-temperature air discharged from the server is cooled by the evaporator. Further, a valve (flow rate adjusting means) for adjusting the supply flow rate (refrigerant flow rate) of the refrigerant supplied to the cooling coil is provided at the outlet of the cooling coil of each evaporator. Then, the controller automatically adjusts the opening degree of each valve based on the temperature measured by the temperature sensor. As a result, when the temperature of the wind after being cooled by the evaporator becomes too lower than the set temperature, the opening of the valve is throttled and the supply flow rate of the refrigerant is reduced.
- the related cooling system described in Patent Document 1 is provided with a valve for adjusting the supply flow rate of the refrigerant supplied to the cooling coil provided in the evaporator, and after being cooled by the evaporator.
- the valve opening is automatically adjusted based on the wind temperature.
- an electronically controlled valve is arranged at the outlet of the evaporator and is linked to the temperature sensor to supply an appropriate amount of refrigerant liquid to the evaporator according to the load on the server rack. This is because if the amount of the refrigerant liquid in the evaporator is too large, the phase change is hindered by the pressure of the refrigerant liquid, and normal liquid cooling by sensible heat rather than latent heat with a large heat transfer amount occurs. Conversely, when the amount of the refrigerant liquid is insufficient, a phase change does not occur and heat cannot be absorbed, so that it is difficult to efficiently perform phase change cooling.
- the object of the present invention is to increase the cost of the apparatus and the maintenance cost in order to efficiently cool the heat source using the natural circulation type phase change cooling device. It is an object of the present invention to provide a cooling device and a manufacturing method thereof.
- the cooling device of the present invention includes a heat receiving unit that receives heat, a condensing unit that radiates heat, a refrigerant relay unit that connects the heat receiving unit and the condensing unit, and relays the refrigerant that circulates through the heat receiving unit and the condensing unit.
- the relay unit includes a refrigerant holding unit that holds the refrigerant, a main pipe that connects the refrigerant holding unit and the condensing unit, and a secondary pipe that connects the refrigerant holding unit and the heat receiving unit and includes a flexible pipe.
- the heat receiving part for receiving heat is arranged, the condensing part for radiating heat is arranged on the ceiling plate, and the refrigerant holding part for holding the refrigerant is lower than the condensing part and from the heat receiving part.
- the refrigerant holding unit and the condensing unit are connected by a main pipe, and the refrigerant holding unit and the heat receiving unit are connected by a sub pipe including a flexible pipe.
- the heat source can be efficiently cooled by the natural circulation type phase change cooling method without increasing the device cost and the maintenance cost.
- phase change cooling device which concerns on the 2nd Embodiment of this invention. It is a top view which shows the specific structure of the phase change cooling device which concerns on the 2nd Embodiment of this invention. It is a front view which shows another structure of the phase change cooling device which concerns on the 2nd Embodiment of this invention. It is a front view which shows another structure of the phase change cooling device which concerns on the 2nd Embodiment of this invention. It is a front view which shows another structure of the phase change cooling device which concerns on the 2nd Embodiment of this invention. It is a top view which shows another structure of the phase change cooling device which concerns on the 2nd Embodiment of this invention. It is a top view which shows the structure of the phase change cooling device which concerns on the 3rd Embodiment of this invention.
- phase change cooling device which concerns on the 3rd Embodiment of this invention. It is a front view which shows another structure of the phase change cooling device which concerns on the 3rd Embodiment of this invention. It is a top view which shows another structure of the phase change cooling device which concerns on the 3rd Embodiment of this invention. It is a side view which shows another structure of the phase change cooling device which concerns on the 3rd Embodiment of this invention. It is a front view which shows another structure of the phase change cooling device which concerns on the 3rd Embodiment of this invention.
- FIG. 1 is a schematic diagram illustrating a configuration of a phase change cooling device 1000 as a cooling device according to the present embodiment.
- the phase change cooling device 1000 according to the present embodiment includes a heat receiving unit 1010, a condensing unit 1020, and a refrigerant transport structure.
- the heat receiving unit 1010 accommodates a refrigerant that receives heat from a heat source.
- the condensing unit 1020 condenses and liquefies the refrigerant vapor of the refrigerant vaporized by the heat receiving unit 1010 to generate a refrigerant liquid.
- the refrigerant transport structure connects the heat receiving unit 1010 and the condensing unit 1020, and relays the refrigerant circulating through the heat receiving unit 1010 and the condensing unit 1020. Specifically, the refrigerant (refrigerant vapor) vaporized in the heat receiving unit 1010 and the refrigerant (refrigerant liquid) condensed and liquefied in the condensing unit 1020 are relayed and transported while circulating through the heat receiving unit 1010 and the condensing unit 1020.
- the refrigerant transport structure includes a refrigerant holding section 1300 that holds the refrigerant, a main pipe 1110 that connects the refrigerant holding section 1300 and the condensing section 1020, and a pipe that is flexible and connects the refrigerant holding section 1300 and the heat receiving section 1010.
- Sub piping 1120 including piping is provided.
- the refrigerant holding unit 1300 is positioned below the condensing unit 1020 and positioned above the heat receiving unit 1010.
- FIG. 1 shows a case where the refrigerant holding unit 1300 is a refrigerant liquid storage unit 1301 for accumulating refrigerant liquid.
- the refrigerant liquid storage unit 1301 can temporarily store the refrigerant liquid, the excess or deficiency of the refrigerant liquid returning to the heat receiving unit 1010 can be compensated.
- the main pipe 1110 is a main liquid pipe through which the refrigerant liquid mainly flows
- the sub pipe 1120 is a sub liquid pipe through which the refrigerant liquid mainly flows.
- the refrigerant transport structure includes a vapor pipe 1200 through which mainly refrigerant vapor flows.
- FIG. 2 is a side view showing a partial configuration of the phase change cooling device 1000 according to the present embodiment.
- the heat receiving unit 1010 includes a plurality of evaporation units that are thermally connected to a heat generation source and store the refrigerant, and constitutes a cooling unit in which the plurality of evaporation units are arranged in the vertical direction. And it was set as the structure which has arrange
- a configuration in which a cooling unit as the heat receiving unit 1010 is attached to a rear door or the like of the electronic device rack 1011 can be adopted.
- the triangular symbol ( ⁇ ) in the following drawings indicates the front side of the electronic equipment rack 1011, that is, the cooling air intake side.
- a part of the sub pipe (sub liquid pipe) 1120 is constituted by a flexible pipe 1122 that can be bent.
- the flexible pipe 1122 connects the refrigerant liquid storage part 1301 and the heat receiving part 1010 in the electronic equipment rack 1011 via the flange 1121 and the like.
- the flexible pipe 1122 can be configured to be arranged on a plane, for example, on a plane substantially horizontal to the top plate surface of the electronic equipment rack 1011. With such an arrangement, when the rear door of the electronic equipment rack 1011 is opened and closed, the twist in the rotation axis direction indicated by the broken line arrow in FIG. 2 does not occur. Therefore, metal fatigue destruction of the flexible piping 1122 due to opening / closing of the rear door can be prevented.
- the flexible pipe 1122 can be configured such that the side where the sub pipe 1120 is connected to the refrigerant liquid storage unit 1301 is positioned above the side where the sub pipe 1120 is connected to the heat receiving unit 1010.
- 3A and 3B are top views showing a part of the configuration of the phase change cooling device 1000 according to the present embodiment.
- 3A shows a state in which the rear door of the electronic equipment rack 1011 is closed
- FIG. 3B shows a state in which the rear door is opened.
- the flexible pipe 1122 is arranged on one plane, for example, on the top plate surface of the electronic equipment rack 1011, and is configured to be movable within this one plane.
- the flexible pipe 1122 is attached to the top of the electronic equipment rack 1011 as shown by the arrow A in the figure in accordance with the movement of the rear door shown by the arrow B in the figure with the hinge 1012 of the rear door as the rotation axis as shown in the figure. It is possible to move substantially horizontally with the plate surface. Accordingly, the length of the flexible pipe 1122 may be determined so that no tension is applied when the rear door of the electronic equipment rack 1011 is opened, and can be determined from the material and thickness of the flexible pipe 1122.
- the refrigerant liquid storage unit 1301 as the refrigerant holding unit 1300 is positioned above the heat receiving unit 1010 and on the front side of the electronic device rack 1011 has been described.
- the refrigerant liquid storage unit 1301 is located above the heat receiving unit 1010, and a cooling unit constituting the heat receiving unit 1010 of the electronic equipment rack 1011 is disposed. It is good also as a structure located in the side which is. That is, the refrigerant liquid storage unit 1301 can be arranged behind the electronic equipment rack 1011. In this case, when the rear door of the electronic equipment rack 1011 is closed (FIG. 5A), the flexible piping 1122 is in an extended state. Therefore, it is possible to easily form a configuration in which a gradient is provided in the auxiliary pipe 1120 to promote natural circulation of the refrigerant liquid.
- the phase change cooling device 1000 includes one heat receiving unit 1010.
- the phase change cooling device 1000 includes a plurality of heat receiving units 1010, and the refrigerant liquid storage unit 1301 is connected to the plurality of heat receiving units 1010 through a plurality of sub-pipes 1120. Good.
- the refrigerant liquid storage unit 1301 can temporarily store the refrigerant liquid, the refrigerant liquid can be evenly distributed to the plurality of heat receiving units 1010.
- the refrigerant holding unit 1300 is the refrigerant liquid storage unit 1301 that accumulates the refrigerant liquid.
- maintenance part is good also as a vapor
- the main pipe is a main steam pipe through which refrigerant vapor mainly flows
- the sub pipe is a sub vapor pipe through which refrigerant vapor mainly flows.
- phase change cooling device Next, a method for manufacturing the phase change cooling device according to the present embodiment will be described.
- a heat receiving unit that stores the refrigerant that receives heat from the heat generation source is disposed, and the refrigerant vapor of the refrigerant vaporized in the heat receiving unit is condensed and liquefied to generate the refrigerant liquid.
- the condensing part On the ceiling board.
- coolant is arrange
- the refrigerant holding part and the condensing part are connected by a main pipe, and the refrigerant holding part and the heat receiving part are connected by a sub pipe including a flexible pipe that can be bent.
- the phase change cooling device according to the present embodiment is completed through the above steps.
- the phase change cooling device 1000 includes the refrigerant transport structure that connects the heat receiving unit 1010 and the condensing unit 1020, and the refrigerant transport structure includes the refrigerant holding unit 1300 and the sub pipe 1120 including the flexible pipe. It has a configuration with.
- the refrigerant vapor received and vaporized by the heat receiving unit 1010 is condensed and liquefied by the condensing unit 1020 to be recirculated to the heat receiving unit 1010 as a refrigerant liquid.
- the refrigerant holding unit 1300 temporarily holds the refrigerant, excess or deficiency of the refrigerant returning to the heat receiving unit 1010 can be compensated. Therefore, according to the phase change cooling device according to the present embodiment, the heat source can be efficiently cooled by the natural circulation type phase change cooling method without increasing the device cost and the maintenance cost.
- the phase change cooling device 1000 according to the present embodiment includes a flexible pipe, when installing the phase change cooling device 1000, for example, it is possible to mount the heat receiving unit on a movable part of the electronic equipment rack. The degree of freedom can be increased.
- FIG. 7 shows the configuration of the phase change cooling device 2000 according to the present embodiment.
- the phase change cooling device 2000 of the present embodiment has a plurality of heat receiving units 1010, and has a configuration including a refrigerant liquid storage unit 2301 for accumulating refrigerant liquid as a refrigerant holding unit and a vapor confluence unit 2302 in which refrigerant vapor merges.
- a refrigerant liquid storage unit 2301 for accumulating refrigerant liquid as a refrigerant holding unit and a vapor confluence unit 2302 in which refrigerant vapor merges.
- the refrigerant liquid storage unit 2301 and the steam confluence unit 2302 are positioned below the condensing unit 1020 and above the heat receiving unit 1010.
- the phase change cooling device 2000 of this embodiment has a plurality of heat receiving units 1010, a condensing unit 1020, and a refrigerant transport structure that connects the heat receiving unit 1010 and the condensing unit 1020.
- the refrigerant transport structure includes a refrigerant liquid transport structure 2100 that transports refrigerant liquid and a refrigerant vapor transport structure 2200 that transports refrigerant vapor.
- the refrigerant liquid transport structure 2100 includes a refrigerant liquid storage unit 2301, a main liquid pipe 2110 that connects the refrigerant liquid storage unit 2301 and the condensing unit 1020, and a refrigerant liquid storage unit 2301 and a plurality of heat receiving units 1010.
- a secondary liquid pipe 2120 including a flexible pipe is provided.
- the refrigerant liquid mainly flows through the main liquid pipe 2110 and the sub liquid pipe 2120.
- the refrigerant vapor transport structure 2200 includes a vapor confluence portion 2302, a main vapor pipe 2210 connecting the vapor confluence portion 2302 and the condensing portion 1020, and a vapor confluence portion 2302 and a plurality of heat receiving portions 1010, respectively, and a flexible pipe that can be bent.
- a secondary steam pipe 2220 is provided.
- the refrigerant vapor mainly flows through the main steam pipe 2210 and the sub steam pipe 2220.
- the refrigerant liquid since the refrigerant liquid accumulates in the refrigerant liquid storage section 2301, the refrigerant liquid is received from the refrigerant liquid storage section 2301 in accordance with the amount of the refrigerant liquid that is reduced by receiving and vaporizing the heat at each heat receiving section 1010.
- the portion 1010 is supplied without excess or deficiency. That is, it is possible to supply an amount of refrigerant liquid corresponding to the load of each heat receiving unit 1010 to each heat receiving unit 1010 without using a drive component, a sensor component, or the like.
- the refrigerant vapor generated in the plurality of heat receiving units 1010 merges in the vapor confluence unit 2302, it is possible to reduce pressure loss due to branching. Therefore, even if it is a case where the some heat receiving part 1010 is provided, it can cool efficiently by a natural circulation type phase change cooling system, without causing the fall of cooling performance.
- the phase change cooling device 2000 of the present embodiment includes the refrigerant liquid storage unit 2301 and the vapor confluence unit 2302. Therefore, the heat source can be efficiently cooled by the natural circulation type phase change cooling method without increasing the apparatus cost and the maintenance cost. Furthermore, the phase change cooling device 2000 of this embodiment is configured to include a sub liquid pipe 2120 and a sub steam pipe 2220 including flexible pipes. Therefore, for example, the degree of freedom in installing phase change cooling device 2000 can be increased, such that the heat receiving unit can be mounted on the movable part of the electronic equipment rack.
- phase change cooling device 2000 Next, a specific configuration of the phase change cooling device 2000 according to the present embodiment will be described.
- FIG. 8A and 8B show a specific configuration of the phase change cooling device 2000.
- FIG. FIG. 8A is a front view
- FIG. 8B is a top view.
- the heat receiving unit 1010 includes a plurality of evaporation units that are thermally connected to a heat generation source and store the refrigerant, and constitutes a cooling unit in which the plurality of evaporation units are arranged in the vertical direction. And it was set as the structure which mounted
- FIG. 8A and 8B a plurality of electronic equipment racks 1011 are arranged in a row, and a refrigerant liquid storage unit 2301 and a vapor confluence unit 2302 as a refrigerant holding unit are arranged in a row. The configuration is arranged on the electronic equipment rack 1011.
- the refrigerant liquid storage unit 2301 and the vapor confluence unit 2302 may be installed on the top plate of the electronic equipment rack 1011 by the mounting structure 2410. Then, the refrigerant liquid storage unit 2301 and the vapor confluence unit 2302 are connected to the plurality of heat receiving units 1010 attached to the plurality of electronic equipment racks 1011 through the sub liquid pipe 2120 and the sub vapor pipe 2220, respectively. With such a configuration, mechanical parts such as screw holes provided in the electronic equipment rack 1011 can be used. Therefore, it is possible to easily install the refrigerant liquid storage unit 2301 and the steam junction unit 2302 in a state where the electronic device rack 1011 is installed.
- the refrigerant liquid storage unit 2301 and the vapor confluence unit 2302 may be arranged on the electronic equipment rack 1011 by fixing the refrigerant liquid storage unit 2301 and the vapor confluence unit 2302 to the ceiling plate 2001 using a ceiling suspension structure or the like.
- the phase change cooling device 2000 has a configuration in which a refrigerant liquid storage unit 2301 and a vapor confluence unit 2302 as a refrigerant holding unit are arranged on a ceiling plate 2001 on which a condensing unit 1020 is installed. Also good. With such a configuration, the refrigerant liquid storage unit 2301 and the steam confluence unit 2302 can be installed together with the main liquid pipe 2110, the main steam pipe 2210, and the condensing unit 1020 at the time of building construction. . As a result, when installing the electronic equipment rack 1011, it is only necessary to connect the auxiliary liquid pipe 2120 and the auxiliary vapor pipe 2220 to each electronic equipment rack 1011, so that the addition of the electronic equipment rack 1011 is facilitated.
- an opening / closing mechanism such as a valve may be provided at a connection port connected to the sub liquid pipe 2120 and the sub steam pipe 2220 provided in the refrigerant liquid storage section 2301 and the steam confluence section 2302, respectively.
- the phase change cooling device 2000 has a configuration in which the refrigerant liquid storage unit 2301 and the vapor confluence unit 2302 as the refrigerant holding unit are arranged on the plurality of electronic equipment racks 1011, respectively.
- the phase change cooling device 2000 may have a configuration in which a composite refrigerant holding unit 2303 is arranged on a plurality of electronic device racks 1011 as a refrigerant holding unit.
- the composite refrigerant holding unit 2303 is configured to accumulate refrigerant liquid and to merge refrigerant vapor.
- the mixed refrigerant liquid which is a liquid phase refrigerant mixed with the refrigerant vapor, is discharged from the composite refrigerant holding unit 2303 together with the refrigerant liquid. To 2120. Therefore, since the mixed refrigerant liquid can be removed from the refrigerant vapor, it is possible to suppress an increase in fluid resistance against the refrigerant vapor that causes a decrease in cooling performance.
- FIG. 11A and 11B show a configuration of the phase change cooling device 3000 according to the present embodiment.
- 11A is a top view and FIG. 11B is a side view.
- the phase change cooling device 3000 of this embodiment includes a plurality of heat receiving units 1010 and includes a refrigerant liquid storage unit 2301 that accumulates refrigerant liquid as a refrigerant holding unit and a vapor confluence unit 2302 where refrigerant vapor merges.
- the heat receiving unit 1010 includes a plurality of evaporation units that are thermally connected to a heat generation source and store the refrigerant, and constitutes a cooling unit in which the plurality of evaporation units are arranged in the vertical direction. And it was set as the structure which mounted
- FIG. 1
- phase change cooling device 3000 of the present embodiment a plurality of electronic equipment racks 1011 are arranged to face each other across the inter-rack passage 3100, and a refrigerant liquid storage unit 2301 and a vapor confluence unit 2302 as a refrigerant holding unit are provided.
- the configuration is such that it is disposed above the inter-rack passage 3100.
- the inter-rack passage 3100 has a passage (cold aisle) through which cooling air sucked from the front by the electronic equipment rack 1011 and a passage through which air including exhaust heat exhausted from the rear by the electronic equipment rack 1011 (hot aisle) is passed. ) Is included.
- 11A and 11B show the case where the inter-rack passage 3100 is a cold aisle as an example, but the refrigerant liquid storage unit 2301 and the steam confluence unit 2302 are arranged above the inter-rack passage 3100 that is a hot aisle. Also good.
- a refrigerant liquid storage unit 2301 as a refrigerant holding unit and a vapor confluence unit 2302 are arranged on a holding plate 3210 that connects the electronic device racks 1011 arranged to face each other. It can be configured.
- the refrigerant liquid storage unit 2301 and the vapor confluence unit 2302 are installed on the holding plate 3210 using an attachment structure 3220 or the like, and the sub liquid pipe 2120 and the sub vapor pipe 2220 for each of the plurality of electronic device racks 1011 facing each other.
- the refrigerant liquid storage unit 2301 and the vapor confluence unit 2302 may be installed on the ceiling plate 2001 using a ceiling suspension structure 3230 or the like.
- the phase change cooling device 3000 according to the present embodiment includes the refrigerant liquid storage unit 2301 and the steam confluence unit 2302. Therefore, the heat source can be efficiently cooled by the natural circulation type phase change cooling method without increasing the apparatus cost and the maintenance cost. Furthermore, the phase change cooling device 3000 according to the present embodiment includes a sub liquid pipe 2120 and a sub steam pipe 2220 including flexible pipes. Therefore, the degree of freedom when installing the phase change cooling device 3000 can be increased, for example, the heat receiving portion can be mounted on a movable part of the electronic equipment rack.
- FIGS. 13A, 13B, and 13C another configuration of the phase change cooling device 3000 is shown in FIGS. 13A, 13B, and 13C.
- FIG. 13A is a top view
- FIG. 13B is a side view
- FIG. 13C is a front view.
- the refrigerant liquid storage portion 2301 and the vapor confluence portion 2302 as the refrigerant holding portion are located on the top plate 3330 held by the holding column 3320 that fixes the partition wall 3310 of the inter-rack passage 3100. It can be set as a structure.
- the partition wall 3310 includes, for example, an aisle cap provided in a cold aisle or a hot aisle to prevent mixing of cooling air sucked from the front surface of the electronic equipment rack 1011 and warm air discharged from the exhaust surface. Etc. are included. Since the isle cap is configured to be covered with a curtain such as vinyl by the holding support 3320, the top plate 3330 can be attached to the holding support 3320 together with the curtain. Thereby, the intensity
- the partition wall 3310 can realize an efficient air flow in the building, and can promote efficient exhaust heat by the phase change cooling method. Due to these synergistic effects, the air conditioning power of the building in which the electronic equipment rack 1011 is installed can be greatly reduced.
- Phase change cooling device 1010 Heat receiving part 1011 Electronic equipment rack 1012 Hinge 1020 Condensing part 1110 Main pipe 1120 Sub pipe 1121 Flange 1122 Flexible pipe 1200 Steam pipe 1300 Refrigerant holding part 1301, 3011 Refrigerant liquid storage part 2001 Ceiling plate 2100 Refrigerant liquid transport structure 2200 Refrigerant vapor transport structure 2110 Main liquid pipe 2120 Sub liquid pipe 2210 Main steam pipe 2220 Sub steam pipe 2302 Steam merge section 2303 Composite refrigerant holding section 2410 Mounting structure 3100 Inter-rack passage 3210 Holding plate 3220 Mounting structure 3230 Ceiling suspension Structure 3310 Partition wall 3320 Holding column 3330 Top plate
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Abstract
Description
図1は、本実施形態による冷却装置としての相変化冷却装置1000の構成を示す概略図である。本実施形態による相変化冷却装置1000は、受熱部1010、凝縮部1020、および冷媒輸送構造を有する。
次に、本発明の第2の実施形態について説明する。図7に、本実施形態による相変化冷却装置2000の構成を示す。
次に、本発明の第3の実施形態について説明する。図11A、11Bに本実施形態による相変化冷却装置3000の構成を示す。図11Aは上面図であり、図11Bは側面図である。
1010 受熱部
1011 電子機器ラック
1012 ヒンジ
1020 凝縮部
1110 主配管
1120 副配管
1121 フランジ
1122 フレキシブル配管
1200 蒸気管
1300 冷媒保持部
1301、2301 冷媒液貯留部
2001 天井板
2100 冷媒液輸送構造
2200 冷媒蒸気輸送構造
2110 主液管
2120 副液管
2210 主蒸気管
2220 副蒸気管
2302 蒸気合流部
2303 複合冷媒保持部
2410 取付け構造
3100 ラック間通路
3210 保持板
3220 取付け構造
3230 天吊り構造
3310 仕切壁
3320 保持支柱
3330 天板
Claims (16)
- 受熱する受熱手段と、
放熱する凝縮手段と、
前記受熱手段と前記凝縮手段を接続し、前記受熱手段および前記凝縮手段を循環する冷媒を中継する冷媒中継手段、とを有し、
前記冷媒中継手段は、
前記冷媒を保持する冷媒保持手段と、
前記冷媒保持手段と前記凝縮手段を接続する主配管と、
前記冷媒保持手段と前記受熱手段を接続し、屈曲自在な配管を含む副配管、とを備える
冷却装置。 - 請求項1に記載した冷却装置において、
前記冷媒保持手段は、前記凝縮手段よりも下方に位置し、前記受熱手段よりも上方に位置している
冷却装置。 - 請求項1または2に記載した冷却装置において、
前記屈曲自在な配管は、一平面上に位置しており、前記一平面内で可動である
冷却装置。 - 請求項1から3のいずれか一項に記載した冷却装置において、
前記冷媒保持手段は、前記冷媒に含まれる冷媒液をためる冷媒液貯留手段である
冷却装置。 - 請求項4に記載した冷却装置において、
前記屈曲自在な配管は、前記副配管が前記冷媒液貯留手段と接続する側が、前記副配管が前記受熱手段と接続する側に対して上方に位置している
冷却装置。 - 請求項1から5のいずれか一項に記載した冷却装置において、
前記冷媒保持手段は、前記冷媒に含まれる冷媒蒸気が合流する蒸気合流手段である
冷却装置。 - 請求項1から3のいずれか一項に記載した冷却装置において、
前記冷媒保持手段は、前記冷媒に含まれる冷媒液をためるとともに、前記冷媒に含まれる冷媒蒸気が合流する複合冷媒保持手段である
冷却装置。 - 請求項1から7のいずれか一項に記載した冷却装置において、
前記凝縮手段は、天井板に位置しており、
前記冷媒保持手段は、前記天井板上に位置している
冷却装置。 - 請求項1から8のいずれか一項に記載した冷却装置において、
前記受熱手段は、発熱源と熱的に接続し前記冷媒を貯蔵する複数の蒸発手段を備え、前記複数の蒸発手段が鉛直方向に位置している冷却ユニットを構成し、
前記冷却ユニットは、前記発熱源としての電子機器を収容する電子機器ラック内に配置している
冷却装置。 - 請求項9に記載した冷却装置において、
前記冷媒保持手段は、前記受熱手段よりも上方であって、前記電子機器ラックの正面側、および前記電子機器ラックの前記冷却ユニットが位置している側、のいずれか一方に位置している
冷却装置。 - 請求項9に記載した冷却装置において、
前記電子機器ラックは、複数個からなり、複数の前記電子機器ラックが列状に位置しており、
前記冷媒保持手段は、前記列状に位置した複数の前記電子機器ラック上に位置している
冷却装置。 - 請求項9に記載した冷却装置において、
前記電子機器ラックは、複数個からなり、複数の前記電子機器ラックがラック間通路を挟んで対向して位置しており、
前記冷媒保持手段は、前記ラック間通路の上方に配置している
冷却装置。 - 請求項12に記載した冷却装置において、
前記冷媒保持手段は、対向して位置している前記電子機器ラックを連結する保持板上に位置している
冷却装置。 - 請求項12に記載した冷却装置において、
前記凝縮手段は、天井板に位置しており、
前記冷媒保持手段は、前記天井板に接続されている
冷却装置。 - 請求項12に記載した冷却装置において、
前記冷媒保持手段は、前記ラック間通路の仕切壁を固定する保持支柱によって保持された天板上に位置している
冷却装置。 - 受熱する受熱手段を配置し、
放熱する凝縮手段を天井板上に配置し、
冷媒を保持する冷媒保持手段を、前記凝縮手段よりも下方であって前記受熱手段よりも上方に配置し、
前記冷媒保持手段と前記凝縮手段を主配管によって接続し、
前記冷媒保持手段と前記受熱手段を、屈曲自在な配管を含む副配管によって接続する
冷却装置の製造方法。
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US15/514,081 US20170311485A1 (en) | 2014-09-26 | 2015-09-15 | Cooling device and method of manufacturing the same |
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JP2011233654A (ja) * | 2010-04-27 | 2011-11-17 | Ntt Facilities Inc | ラック間通路遮蔽構造 |
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US7950244B2 (en) * | 2007-11-14 | 2011-05-31 | International Business Machines Corporation | Apparatus for facilitating cooling of an electronics rack through the use of an air-to-liquid heat exchanger |
US7660116B2 (en) * | 2008-04-21 | 2010-02-09 | International Business Machines Corporation | Rack with integrated rear-door heat exchanger |
FR2931961B1 (fr) * | 2008-06-02 | 2010-06-11 | Bull Sas | Dispositif de refroidissement d'une baie informatique et installation informatique comportant un tel dispositif |
IT1391775B1 (it) * | 2008-11-17 | 2012-01-27 | Ilpea Ind Spa | Circuito di raffraddamento |
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US20140216458A1 (en) * | 2011-11-23 | 2014-08-07 | Michael Dean Asbra | Air Conditioned and Ambient Fresh Air Supply System for Respirator Users |
JP6070569B2 (ja) * | 2011-12-01 | 2017-02-01 | 日本電気株式会社 | 電子基板収容機器および電子装置 |
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JP6034465B1 (ja) * | 2015-10-15 | 2016-11-30 | Necプラットフォームズ株式会社 | 冷却装置及び冷却システム |
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JPS61169374U (ja) * | 1985-04-08 | 1986-10-21 | ||
WO2011122207A1 (ja) * | 2010-03-30 | 2011-10-06 | 日本電気株式会社 | 電子機器排気の冷却装置及び冷却システム |
JP2011233654A (ja) * | 2010-04-27 | 2011-11-17 | Ntt Facilities Inc | ラック間通路遮蔽構造 |
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