CN113056181A - Air-cooled direct-blowing modular data center emergency cooling tail end system - Google Patents
Air-cooled direct-blowing modular data center emergency cooling tail end system Download PDFInfo
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- CN113056181A CN113056181A CN202110412081.6A CN202110412081A CN113056181A CN 113056181 A CN113056181 A CN 113056181A CN 202110412081 A CN202110412081 A CN 202110412081A CN 113056181 A CN113056181 A CN 113056181A
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- air
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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
- H05K7/20718—Forced ventilation of a gaseous coolant
- H05K7/20736—Forced ventilation of a gaseous coolant within cabinets for removing heat from server blades
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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
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
- H05K7/20145—Means for directing air flow, e.g. ducts, deflectors, plenum or guides
-
- 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
- H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Computer Hardware Design (AREA)
- General Engineering & Computer Science (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention discloses an air-cooled direct-blowing modular data center emergency cold supply tail end system, which comprises a cabinet unit, a cold accumulation unit, an air conditioning unit and a support, wherein the cabinet unit is provided with a cabinet opening and a cabinet opening; the cabinet units are arranged in a single row and positioned in the middle of the modular data center, and the air inlet mode is front air inlet and back air outlet; the air conditioning unit is positioned at the top of the modular data center and fixed in the air in a suspension mode. The phase change cold accumulation system disclosed by the invention realizes emergency cold supply of the data center by adopting phase change cold accumulation, and has the advantages of simple system structure, low cost, high heat exchange efficiency, large phase change latent heat of materials, strong heat conduction performance, small occupied volume and good technical effect.
Description
Technical Field
The invention relates to the technical field of cooling of data centers, in particular to an air-cooled direct-blowing modular data center emergency cooling tail end system.
Background
The data center is a special building, wherein the main equipment is a server, and the auxiliary systems comprise a power supply and distribution system, a refrigeration system, a fire control monitoring and management system and the like. In recent years, with the rise of cloud computing, a modular data center is rapidly developed as a new deployment form. The modular data center integrates the systems such as the cabinet, refrigeration, power distribution, monitoring and the like, reduces the coupling of infrastructure to the environment, and has the advantages of environmental friendliness, energy conservation, short construction period, easiness in expansion, convenience in control and the like.
The data center bears the tasks of an information-oriented social basis, has the functions of data storage, network communication, data calculation and the like, and has strict requirements on environmental conditions. Once a server is down due to an accident (power failure, network failure, IT system error, etc.), not only is the inconvenience of users caused, but also huge economic losses are caused especially for important public places such as transportation systems, banks, hospitals, etc.
In order to meet the requirements of the server, continuous power supply and cooling must be realized. The power supply system of a data center usually adopts commercial power + UPS backup battery. When the data center is suddenly powered off, the storage battery in the UPS system converts direct current into alternating current through the inverter and supplies the alternating current to the server. Meanwhile, in order to prevent the temperature in the server from rising beyond a limit value to cause the shutdown of the server, one method is to directly connect an air conditioning system into the UPS to realize continuous cooling. This approach requires that the UPS system have a large capacity and high cost; the other mode is to adopt cold accumulation to realize continuous cold supply for the machine room. The existing cold storage methods mainly comprise ice cold storage and water cold storage. Wherein, the ice cold storage requires an additional ice making machine set because the freezing temperature of the ice is 0 ℃ and the temperature required for the cold charging process is lower. For chilled water storage, the cold storage process is a sensible heat release process, the heat capacity is relatively low, the equipment is generally large in size, extra space is occupied, and the initial investment of the equipment is increased.
Accordingly, those skilled in the art have endeavored to develop an emergency cooling end system for an air-cooled modular data center that achieves continuous cooling of data center servers at a relatively low cost.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, the technical problem to be solved by the present invention is how to achieve continuous cooling of data center servers at a relatively low cost.
In order to achieve the purpose, the invention provides an air-cooled direct-blowing modular data center emergency cold supply tail end system which comprises a cabinet unit, a cold accumulation unit, an air conditioning unit and a support.
Furthermore, the cabinet units are arranged in a single row and located in the middle of the modular data center, and the air inlet mode is front air inlet and rear air outlet.
Further, the air conditioning unit is located on the top of the modular data center and fixed in the air in a hanging mode.
Further, the air conditioning unit comprises an evaporator and a fan, wherein an air inlet of the air conditioning unit is located on the side portion, and an air outlet of the air conditioning unit is located below.
Further, the support is located between the cabinet unit and the cold accumulation unit and supports the cold accumulation unit.
Further, the cold accumulation unit is located the air outlet of air conditioning unit with between the rack unit, the air after the cooling of being convenient for gets into the server fast, and flow path is short, can not take place the heat exchange with other irrelevant structure, effectively reduces middle heat transfer loss.
Furthermore, the cold accumulation unit is formed by arranging cold accumulation plates in parallel to form a flow channel, and air flows through the flow channel from top to bottom.
Furthermore, the cold storage material used by the cold storage unit is one of binary or ternary organic composite phase change materials, the carbon nanoparticles are adopted to enhance the heat conduction performance of the phase change material, the melting point and the solidification point of the phase change material are matched with the operation working condition, the solid state can be kept when the data center is in normal operation, and the cold quantity is released under the emergency working condition.
Furthermore, the surface of the cold accumulation plate is distributed with semi-cylindrical fins which are uniformly distributed in the air flow channel, and the cold accumulation plate has the characteristics of small resistance loss coefficient and strong heat exchange effect.
Furthermore, the shell of the cold accumulation plate is made of aluminum alloy, and has the characteristics of high heat conductivity, light weight, low price and the like.
The invention has the beneficial effects that:
(1) the invention adopts phase change cold accumulation to realize emergency cold supply of the data center. The air conditioner air outlet can be used for cooling in the cold charging process under the normal operation condition of the data center. Compared with the traditional ice cold accumulation, the system does not need additional auxiliary refrigeration equipment, and has simple structure and lower cost.
(2) The cold accumulation unit in the cold supply tail end is positioned between the outlet of the ceiling air conditioner and the cabinet, air flows through the flow channel from top to bottom, the flow path is short, and the heat exchange efficiency is high.
(3) The phase-change material adopted by the invention is a carbon nano-particle reinforced multi-element composite organic phase-change material, and the material has high phase-change latent heat and strong heat-conducting property. Compared with the traditional chilled water storage, the structure is simple, and the occupied volume is small.
The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, the features and the effects of the present invention.
Drawings
Fig. 1 is a three-dimensional schematic view of a cold storage unit in accordance with a preferred embodiment of the invention;
fig. 2 is a schematic partial projection view of a cold storage unit according to a preferred embodiment of the invention;
FIG. 3 is a schematic diagram of the end system of a preferred embodiment of the present invention.
The air conditioner comprises a cabinet unit 1, a cold accumulation unit 2, a cold accumulation plate 21, fins 22, an air flow channel 23, an air conditioning unit 3, an evaporator 31, a fan 32 and a support 4.
Detailed Description
The technical contents of the preferred embodiments of the present invention will be more clearly and easily understood by referring to the drawings attached to the specification. The present invention may be embodied in many different forms of embodiments and the scope of the invention is not limited to the embodiments set forth herein.
In the drawings, structurally identical elements are represented by like reference numerals, and structurally or functionally similar elements are represented by like reference numerals throughout the several views. The size and thickness of each component shown in the drawings are arbitrarily illustrated, and the present invention is not limited to the size and thickness of each component. The thickness of the components may be exaggerated where appropriate in the figures to improve clarity.
As shown in fig. 1, a schematic three-dimensional structure of a cold storage unit 2 according to a preferred embodiment of the present invention includes a cold storage plate 21 and a phase change material (not shown). The phase-change material is a binary or ternary composite material with proper phase-change temperature obtained by screening and adapting, so that the phase-change material is kept in a solid state in the normal operation state of the data center and starts to release cold energy under the emergency working condition. Meanwhile, the cold filling process can be finished without an additional refrigerating unit. The housing of the cold storage plate 21 is made of aluminum alloy and plays roles of bearing the phase change material and conducting heat. Because the heat conductivity coefficient of the phase-change material is much lower than that of the aluminum alloy, the thickness of the shell has negligible influence on the heat transfer of a single cold storage plate, but the overall arrangement of the cold storage plates (the number of the cold storage plates and the width of a flow channel) is influenced. Because the degree of difficulty of hollowing out a solid slab inside is very big, for the convenience of processing, can be divided into two halves with the cold-storage plate along the side and process respectively, then it is fixed with two spare part combinations, but fixed mode optional welding perhaps uses powerful glue to carry out the adhesion, for preventing that phase change material from revealing from the gap, can add the sealing strip in two spare part junctions. After the inlet of the cold accumulation plate is filled with the phase-change material, the cold accumulation plate can be sealed through the sealing cover. Because the monoblock cold storage plate is vertically arranged, hot air flows from top to bottom, and the inlet of the phase change material is arranged at the top of the cold storage plate, so that the phase change material can be effectively prevented from being leaked. The surfaces of the cold storage plates are provided with the arc-shaped fins which are arranged in a staggered mode, so that the disturbance of the air side can be enhanced, and the heat exchange effect is enhanced.
Fig. 2 is a partial projection schematic view of the cold storage unit 2 according to a preferred embodiment of the present invention, the cold storage plates 21 are arranged in parallel, the number of the cold storage plates 21 and the thickness of the air flow channels 23 can be flexibly adjusted according to the load of the data center, and the air flow channels 23 may be arranged at equal intervals or at non-equal intervals. The simple flow channel structure effectively prevents larger pressure drop loss while enhancing heat exchange. The cold storage device is arranged below the air conditioning unit 3, and the fan 32 sends hot air to the cold storage unit 2 to become qualified cold air in the case of power failure. The cold air enters the closed cold channel or directly enters the interior of the cabinet unit 1.
Fig. 3 is a schematic diagram of the end system of a preferred embodiment of the present invention, the modular data center is integrated into a shipping container, the air conditioning unit 3 is arranged suspended on the top of the cabinet unit 1, the air inlet of the air conditioning unit 3 is located on the side, and the fan 32 is located below, adjacent to the outlet. The front of the cabinet unit 1 is used for air inlet and the rear is used for air outlet, hot air enters the air conditioning unit 3 through the side part of the air conditioning unit 3 and exchanges heat with the evaporator 31, cooled cold air is blown into the cold accumulation unit 2 through the fan 32, and at the moment, the cold accumulation plate 21 does not release cold energy under normal operation conditions. The cold air coming out of the cold accumulation unit 2 sinks and enters from the front end of the cabinet unit 1 to exchange heat with the server. When an emergency working condition occurs, the evaporator 31 in the air conditioning unit 3 does not work any more, hot air with high temperature flows out of the fan 32, the hot air flows into the cold accumulation unit 2, the cold accumulation plate 21 releases cold energy to reduce the air temperature to a required range, and cold air enters the cabinet unit 1 to keep the normal operation of the server. And when the emergency working condition is finished, the modular data center is switched back to normal operation. The cold air from the air conditioning unit 3 flows into the cold storage unit 2, and the phase change material in the cold storage plate 21 changes from a liquid state to a solid state again.
In the embodiment, the cabinet unit 1 is a 42U standard cabinet with a width of 600mm and a depth of 800 mm.
In the embodiment, one cold accumulation unit 2 corresponds to two cabinet units 1, and 5 standard 2U servers are installed in each cabinet unit 1.
In the example, the support 4 is a steel grid.
In the embodiment, one air conditioning unit 3 corresponds to one cold storage unit 2.
In the embodiment, the selected phase-change material is a binary mixture of capric acid and stearic acid with the mass ratio of 98:2, and the DSC test shows that the phase-change fusion temperature is 28.48 ℃, the phase-change solidification temperature is 25.33 ℃, the temperature range meets the application condition and the stability is good.
In the embodiment, 5% of graphite powder with a diameter of 50 nm is added into the phase change material in the cold storage unit 2.
In the embodiment, the heat load corresponding to a single cold accumulation unit 2 is 6KW, and the cold accumulation time is 5 min.
In the embodiment, the length of the cold storage plate 21 in the cold storage unit 2 is 450mm, the total thickness is 9mm (the thickness of the housing is 3mm), the height is 400mm, and the width of the flow channel is 4 mm.
In the embodiment, the fins 22 on the surface of the cold storage plate 21 in the cold storage unit 2 are arc-shaped, the length is 4mm, the height is 2mm, the distance between adjacent fins 22 on the same side of the cold storage plate 21 is 20mm, and the distance between adjacent fins 22 on the opposite side is 10 mm.
In the embodiment, the cold storage plates 21 in the cold storage unit 2 are arranged at equal intervals.
In the embodiment, the phase change material in the cold storage unit 2 is injected through the tubule.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (10)
1. An air-cooled direct-blowing modularized data center emergency cold supply tail end system comprises a cabinet unit, a cold accumulation unit, an air conditioner unit and a support.
2. The air-cooled direct-blowing modular data center emergency cooling end system of claim 1, wherein the cabinet units are arranged in a single row and located in the middle of the modular data center, and the air inlet mode is front air inlet and rear air outlet.
3. The air-cooled direct-blowing modular data center emergency cooling terminal system of claim 1, wherein the air conditioning unit is located at the top of the modular data center and is suspended in the air.
4. The air-cooled direct-blowing modular data center emergency cooling end system of claim 1, wherein the air conditioning unit comprises an evaporator and a fan, the air inlet of the air conditioning unit is located on the side, and the air outlet is located below.
5. The air-cooled direct-blowing modular data center emergency cold supply end system of claim 1, wherein the rack is located between the cabinet unit and the cold storage unit to support the cold storage unit.
6. The air-cooled direct-blowing modular data center emergency cooling end system as claimed in claim 1, wherein the cold accumulation unit is located between the air outlet of the air conditioning unit and the cabinet unit, so that cooled air can rapidly enter the server, the flow path is short, heat exchange with other unrelated structures is avoided, and intermediate heat exchange loss is effectively reduced.
7. The air-cooled direct-blowing modular data center emergency cold supply end system of claim 1, wherein the cold storage units are formed by cold storage plates arranged in parallel to form a flow channel through which air flows from top to bottom.
8. The emergency cold supply end system of the air-cooled direct-blowing modular data center of claim 1, wherein the cold storage material used by the cold storage unit is one of binary or ternary organic composite phase change materials, carbon nanoparticles are adopted to enhance the heat conductivity of the phase change material, and the melting point and the solidification point of the phase change material are matched with the operation condition, so that the phase change material can keep a solid state during the normal operation of the data center and release cold during the emergency condition.
9. The air-cooled direct-blowing modular data center emergency cooling tail end system according to claim 7, wherein semi-cylindrical fins are distributed on the surface of the cold storage plate and are uniformly distributed in the air flow channel, and the air-cooled direct-blowing modular data center emergency cooling tail end system has the characteristics of small resistance loss coefficient and strong heat exchange effect.
10. The air-cooled direct-blowing modular data center emergency cooling tail end system of claim 7, wherein the housing of the cold storage plate is made of aluminum alloy, and has the characteristics of high heat conductivity, light weight, low price and the like.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110412081.6A CN113056181A (en) | 2021-04-16 | 2021-04-16 | Air-cooled direct-blowing modular data center emergency cooling tail end system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110412081.6A CN113056181A (en) | 2021-04-16 | 2021-04-16 | Air-cooled direct-blowing modular data center emergency cooling tail end system |
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| CN113056181A true CN113056181A (en) | 2021-06-29 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101737880A (en) * | 2008-11-27 | 2010-06-16 | 上海凌御电气有限公司 | Method for balancing temperature of outdoor machine room and structure of outdoor machine room |
| CN103344021A (en) * | 2013-06-28 | 2013-10-09 | 南京佳力图空调机电有限公司 | Closed hot channel data center with cold region and hot region |
| CN204350554U (en) * | 2015-02-06 | 2015-05-20 | 深圳市易信科技有限公司 | A kind of phase change cold-storage rack |
| CN104754923A (en) * | 2015-01-08 | 2015-07-01 | 中华电信股份有限公司 | Combined data center and heat dissipation method thereof |
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| CN106765788A (en) * | 2017-01-20 | 2017-05-31 | 广东欧科空调制冷有限公司 | Cold storage cabinet air conditioner |
| CN206402630U (en) * | 2017-02-06 | 2017-08-11 | 深圳市艾特网能技术有限公司 | A kind of modular data center temperature control system |
| CN209072826U (en) * | 2018-09-10 | 2019-07-05 | 南京吉左网络科技股份有限公司 | A kind of Emergency Venting System for modular data center |
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2021
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Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101737880A (en) * | 2008-11-27 | 2010-06-16 | 上海凌御电气有限公司 | Method for balancing temperature of outdoor machine room and structure of outdoor machine room |
| CN103344021A (en) * | 2013-06-28 | 2013-10-09 | 南京佳力图空调机电有限公司 | Closed hot channel data center with cold region and hot region |
| CN104754923A (en) * | 2015-01-08 | 2015-07-01 | 中华电信股份有限公司 | Combined data center and heat dissipation method thereof |
| CN204350554U (en) * | 2015-02-06 | 2015-05-20 | 深圳市易信科技有限公司 | A kind of phase change cold-storage rack |
| CN105658041A (en) * | 2016-04-05 | 2016-06-08 | 浪潮电子信息产业股份有限公司 | Data center and data center cooling system |
| CN105899055A (en) * | 2016-06-24 | 2016-08-24 | 深圳易信科技股份有限公司 | Energy-saving cooling device of data center |
| CN106765788A (en) * | 2017-01-20 | 2017-05-31 | 广东欧科空调制冷有限公司 | Cold storage cabinet air conditioner |
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Application publication date: 20210629 |