WO2012075624A1 - 一种制冷一体化机柜 - Google Patents

一种制冷一体化机柜 Download PDF

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Publication number
WO2012075624A1
WO2012075624A1 PCT/CN2010/079532 CN2010079532W WO2012075624A1 WO 2012075624 A1 WO2012075624 A1 WO 2012075624A1 CN 2010079532 W CN2010079532 W CN 2010079532W WO 2012075624 A1 WO2012075624 A1 WO 2012075624A1
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WO
WIPO (PCT)
Prior art keywords
cabinet
heat exchanger
heat
air duct
air
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PCT/CN2010/079532
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English (en)
French (fr)
Inventor
李震
江亿
刘晓华
钟志鹏
冯剑超
Original Assignee
北京纳源丰科技发展有限公司
清华大学
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Application filed by 北京纳源丰科技发展有限公司, 清华大学 filed Critical 北京纳源丰科技发展有限公司
Priority to PCT/CN2010/079532 priority Critical patent/WO2012075624A1/zh
Priority to CN201080057367.7A priority patent/CN102742375B/zh
Publication of WO2012075624A1 publication Critical patent/WO2012075624A1/zh

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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
    • 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
    • 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
    • H05K7/20745—Forced ventilation of a gaseous coolant within rooms for removing heat from cabinets, e.g. by air conditioning device

Definitions

  • the invention relates to the field of thermal management and energy saving of an information room, in particular to a refrigeration integrated cabinet.
  • the existing computer room air conditioning systems adopt a thermal management method that controls the overall temperature of the equipment room, and the heat exchange temperature difference is relatively small, and the heat exchange efficiency is low.
  • the method of shortening the cooling distance can increase the heat exchange temperature difference, effectively improve the cooling and heat exchange efficiency, and tap the potential of the air conditioning system.
  • One is to accurately supply air, and the cold air of the air conditioning system is directly sent to the cabinet that needs to be cooled through a specific air passage, and the cooling temperature difference is increased, and the air supply temperature of the air conditioner cooling can be appropriately increased to improve the overall performance of the air conditioning system.
  • the main disadvantage of this method is that the fan of the air conditioning system is required to provide a larger indenter, which increases the transportation energy consumption of the air supply, and in addition, the air volume distribution in the air duct is not easily adjusted.
  • the evaporator of the air conditioning system is designed into several small evaporators, and the small evaporator is placed at the air outlet of the cabinet, which can effectively reduce the cooling capacity of the air conditioning system and provide cooling on demand.
  • the method is easy to cause the pipeline load of the air conditioning system and the flow rate of the heat exchange medium to be difficult to control, and the control system is complicated; in addition, the method has less heat dissipation and lower heat generation. The energy saving effect of the large information room is not obvious.
  • the invention provides a refrigeration integrated cabinet By optimizing the organization of the airflow inside the cabinet, the inlet and outlet airflow temperatures of the heating units are relatively uniform, thereby avoiding the mutual influence and interference between the airflows of the heating units, thereby effectively improving the heat dissipation capability of each of the heating units.
  • the cooling balance of the individual cabinets is realized, and the problem of airflow organization in the high heat flow density information room is solved.
  • the refrigeration integrated cabinet also has the advantages of less moving parts, less energy consumption, less noise, high reliability and long service life.
  • the refrigeration integrated cabinet of the present invention is realized by the air flow passages of the heat generating units being independent of each other and the heat exchangers being arranged reasonably in the cabinet.
  • a refrigeration integrated cabinet comprising:
  • At least one air inlet is located on a bottom plate of the cabinet;
  • At least one air outlet is located on a top plate of the cabinet;
  • At least one set of fans disposed adjacent to the air inlet and/or the air outlet;
  • the in-cabinet heat exchanger includes at least one bottom cabinet heat exchanger and/or at least one top cabinet heat exchanger;
  • the heat generating unit is mounted on the main bracket, wherein the electronic device is heated, and the electronic device is a computer server, a data storage device, a transmission device or a power device;
  • a partition plate is disposed between the heat generating unit and the bottom plate at the lowermost end of the cabinet, and a partition plate is disposed between the heat generating unit and the top plate at the uppermost end of the cabinet, and the partition plate and the heat generating unit divide the cabinet into two front and rear ventilations.
  • the air ducts are respectively referred to as a front air duct and a rear air duct, and the front air duct is in communication with the air inlet, the rear air duct is in communication with the air outlet, and airflow in the front air duct passes
  • Each of the heat generating units is merged into the rear air duct, and the airflows in the front air duct and the rear air duct are independent, and no mixing occurs;
  • the bottom cabinet heat exchanger is disposed at a position close to the bottom plate and completely in the front air duct;
  • the top cabinet heat exchanger is disposed near the top plate and completely within the rear air duct;
  • the bottom heat exchanger in the cabinet is connected with an intermediate heat exchanger placed outside the cabinet through a connecting pipe to form a sealed cavity, wherein the heat exchange medium is poured, and the heat exchange medium can be in the cavity according to the magnitude of the transferred heat flow.
  • the heat exchanger in the top cabinet is connected to the intermediate heat exchanger through a connecting pipe to form a sealed cavity, wherein the heat exchange medium is poured, and the heat exchange medium can achieve dynamic balance in the cavity according to the magnitude of the heat transfer.
  • a baffle is provided between the firing cells to regulate the flow of air within the cabinet.
  • the intermediate heat exchanger is positioned higher than the installed position of the heat exchanger in the cabinet to which it is connected.
  • the heat exchange medium used in the heat exchanger in the cabinet is any one of R22, R134a, R410a, R600a or R32.
  • the intermediate heat exchanger is a plate heat exchanger, a shell-and-tube heat exchanger or a tube-and-tube heat exchanger.
  • the cold side of the intermediate heat exchanger utilizes cooling water from a cooling tower, or utilizes chilled water from a chiller, or utilizes refrigerant from a chiller.
  • the heat exchanger of the intermediate heat exchanger is connected in series or in parallel with the heat exchanger in the cabinet.
  • the heat exchanger in the cabinet is placed obliquely in the cabinet and has a certain inclination angle with the horizontal plane.
  • the heat exchanger in the cabinet is a finned tube heat exchanger or a microchannel heat exchanger.
  • the cold sides of the intermediate heat exchangers may be connected in series or in parallel.
  • the refrigeration integrated cabinet of the invention relies on the dynamic balance of the gas and liquid phases of the heat exchange medium in the closed cavity formed by the heat exchanger in the cabinet and the intermediate heat exchanger to take away the heat of the cabinet.
  • the heat exchanger in the cabinet of the present invention can be connected in series or in parallel with the intermediate heat exchanger, and combined with the temperature adjustment of the heat transfer medium on the cold side of the intermediate heat exchanger, a multi-stage heat exchange system can be formed, and the cabinet can be flexibly adjusted.
  • the heat exchange temperature difference between the various levels makes the temperature of the inlet and outlet of the cabinet consistent, and the air cooling process is completed inside the cabinet, eliminating the need to install other cooling ends, thereby effectively improving the space utilization of the information room.
  • the refrigeration integrated cabinet of the invention greatly shortens the distance between the heat source and the cooling end in the information room, and can effectively improve the performance of the information room air conditioning system and reduce the cooling energy consumption thereof.
  • FIG. 1 is a schematic perspective view of a refrigeration integrated cabinet of the present invention.
  • FIG. 2 is a schematic plan view showing the structure of a refrigeration integrated cabinet of the first embodiment of the present invention.
  • FIG. 3 is a schematic plan view showing the structure of a refrigeration integrated cabinet of the second embodiment of the present invention.
  • FIG. 4 is a schematic structural view of a heat exchanger in a cabinet of a refrigeration integrated cabinet according to the present invention.
  • the invention provides a refrigeration integrated cabinet
  • the inlet and outlet airflow temperatures of the heating units are relatively uniform, thereby avoiding the mutual influence and interference between the airflows of the heating units, thereby effectively improving the heat dissipation capability of each of the heating units.
  • the cooling balance of the individual cabinets is realized, and the problem of airflow organization in the high heat flow density information room is solved.
  • the cooling integrated cabinet includes: main bracket 10, front panel 1 , left and right side plate 2 , bottom plate 3 , back plate 4 , top plate 5 , heat generating unit 9 ; air inlet 11 , the air inlet 11 is located at the bottom plate of the cabinet near the back plate; the air outlet 12 The air outlet 12 is located at a position of the top plate of the cabinet near the front panel; the fan 20 is disposed between the heat exchanger 6 of the bottom cabinet and the front panel 1 and the air outlet 12
  • the heat generating unit 9 is mounted on the main bracket 10, and a partition plate 21 is disposed between each of the heat generating units, and a partition plate 21 is disposed between the heat generating unit 9 at the lowermost end of the cabinet and the heat exchanger 6 at the bottom cabinet.
  • the partition unit 21 is also disposed between the heat generating unit 9 at the uppermost end of the cabinet and the heat exchangers 7 and 8 in the top cabinet.
  • the partition plate 21 and the heat generating unit 9 divide the cabinet into two front and rear air ducts. 15 and the rear air duct 16 , the front air duct 15 is connected with the air inlet 11 , and the rear air duct 16 is connected with the air outlet 12 , and the air flow in the front air duct 15 passes through each heat generating unit 9 and then flows into the rear air duct. In the 16th, the airflow in the front air duct 15 and the rear air duct 16 is independent and no mixing occurs.
  • the refrigeration integrated cabinet of the present invention further includes a bottom cabinet heat exchanger 6 disposed in the bottom plate adjacent to the cabinet 3 At the location, and completely within the front air duct 15; the top cabinet heat exchangers 7, 8 are disposed under the ceiling 5 of the cabinet and are completely behind Wind tunnel 16 inside.
  • the heat exchanger in the bottom cabinet 6 passes through the connecting pipes 13 and 14 and the intermediate heat exchanger placed outside the cabinet 17 Connecting, forming a sealed cavity, wherein the heat exchange medium is poured, the heat exchange medium can realize dynamic balance in the cavity according to the magnitude of heat transfer flow;
  • the heat exchanger in the top cabinet 7 passes through the connecting pipes 24, 25 and the intermediate heat exchanger 19 connected to form a sealed cavity in which the heat exchange medium is poured;
  • the heat exchanger in the top cabinet 8 passes through the connecting pipes 22, 23 and the intermediate heat exchanger 18 Connected to form a sealed cavity in which the heat exchange medium is poured.
  • the bottom cabinet heat exchanger 6 and the top cabinet heat exchangers 7 and 8 are slanted in the cabinet and are at an angle to the horizontal.
  • Intermediate heat exchanger 17 The position of 18, 19 is higher than the installation position of the heat exchanger 6 in the bottom cabinet and the heat exchangers 7 and 8 in the top cabinet.
  • FIG. 2 A The direction of the arrow is the flow direction of the air in the information room after entering the cabinet. After the ambient air of the information room enters the cabinet, it flows through the heat exchanger at the bottom of the cabinet. After the temperature is lowered, it is sent to each heating unit through the front air duct. After cooling the heating unit 9, it becomes hot air, and the hot air flows into the rear air duct 16, and the air in the rear air duct 16 passes over the heat exchangers in the top cabinet 7 and 8 under the action of the fan 20 located at the top of the cabinet. .
  • the heat of the air in the cabinet is transferred to the heat exchanger 6 in the bottom cabinet and the heat exchangers 7 and 8 in the top cabinet, and the heat exchangers 6 , 7 and 8 in the cabinet
  • the heat exchange medium in the medium is heated and evaporated, and the heat exchange medium vapor flows through the connecting pipe to the intermediate heat exchangers 17, 18, 19, and in the intermediate heat exchangers 17, 18, 19
  • the heat is released, condensed into a liquid, and the liquid flows back to the heat exchanger in the cabinet through the connecting pipe.
  • the cooling capacity of the intermediate heat exchangers 17, 18, 19 is provided by the cold side heat exchange medium, and the B arrow direction is the intermediate heat exchanger 17 , 18 19, the flow direction of the medium-cold side heat exchange medium.
  • the cold side heat exchange medium can be cooling water from a cooling tower or refrigerant from a chiller and a chiller.
  • the cold sides of the plurality of intermediate heat exchangers 17, 18, 19 can be connected in parallel or in series.
  • the refrigeration integrated cabinet regulates the heat exchanger in the cabinet by adjusting the temperature and flow rate of the heat exchange medium on the cold side of the intermediate heat exchangers 17, 18, 19
  • the surface temperature of 7, 8 and 8 makes the surface temperature of the heat exchangers 6, 7, and 8 in the cabinet above the dew point temperature of the air, ensuring full sensible heat transfer in the cabinet to avoid condensation in the cabinet.
  • FIG. 4 is a schematic structural view of a heat exchanger in a cabinet of a refrigeration integrated cabinet according to the present invention, and heat exchangers 6 , 7 , and 8 in the cabinet It is a finned tube heat exchanger or a microchannel heat exchanger comprising fins 26 .
  • FIG 3 illustrates another embodiment of the present invention.
  • the first embodiment shown differs in that the air flow passes from the bottom of the bottom heat exchanger 6 in the cabinet and enters the front air duct 15, and the top heat exchanger 8 in the cabinet is located in the top heat exchanger in the cabinet. Directly above, the air flow first passes through the top heat exchanger 7 in the cabinet, then passes over the top heat exchanger 8 in the cabinet, and finally exits the cabinet through the fan 20.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Thermal Sciences (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Human Computer Interaction (AREA)
  • General Physics & Mathematics (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Description

一种制冷一体化机柜 技术领域
本发明涉及信息机房热管理节能领域，特别涉及一种 制冷一体化机柜 。
背景技术
信息机房中由于设备发热量大，需要专门的空调系统为机房内的设备散热。现有的机房空调系统均采用控制机房整体温度的热管理方式，换热温差相对较小，换热效率低。采用缩短供冷距离的方法可增加换热温差，有效提高供冷和换热效率，挖掘空调系统的降耗潜力。
目前信息机房内采用的缩短供冷距离的方法主要有两种：
一种是精确送风，通过特定的风道将空调系统的冷风直接送至需要供冷的机柜，增大送冷温差，可适当提高空调供冷的送风温度，以提高空调系统的整体性能。该方法的主要缺点是需要空调系统的风机提供较大的压头，这增加了送风的运输能耗，此外，风道中的风量分配也不易调节。
一种是分布式制冷，将空调系统的蒸发器设计成若干个小型蒸发器，将小型蒸发器置于机柜的排风口处，这样可以有效降低空调系统的冷量耗散，按需供冷。但由于信息机房内机柜分布较为密集，采用这种方法容易造成空调系统的管路负载和换热介质流量不易调控，控制系统较为复杂；此外，该方法对于热耗散量较少、发热量较大的信息机房节能效果不太明显。
 技术问题
本发明提供了一种 制冷一体化机柜 ，通过对机柜内部的气流进行优化组织，以保持各发热单元的进出口气流温度相对一致，避免了各发热单元的气流之间的相互影响和干扰，有效提高了每个发热单元的散热能力，实现了单个机柜自身的供冷平衡，解决了高热流密度信息机房气流组织难的问题。本发明的 制冷一体化机柜还具有 运动部件少、送风能耗小、噪音小、可靠性高、使用寿命长等优点。
技术解决方案
本发明的 制冷一体化机柜是通过各发热单元的气流通道相互独立、并在机柜中合理布置换热器而实现的。
本发明为解决其技术问题所采用的技术方案是：
一种制冷一体化机柜，包括：
主支架，发热单元，前面板，背板，左、右侧板，顶板，底板，及柜内换热器；
至少一进风口，所述进风口位于所述机柜的底板上；
至少一出风口，所述出风口位于所述机柜的顶板上；
至少一组风扇，所述风扇设置于靠近所述进风口处和/或所述出风口处；
其特征在于：
所述柜内换热器包括至少一个底部柜内换热器和/或至少一个顶部柜内换热器；
所述发热单元安装在主支架上，其中放置发热的电子设备，所述的电子设备为计算机服务器、数据存储设备、传输设备或电源设备；
位于机柜最下端的发热单元和底板之间设置有隔板，位于机柜最上端的发热单元和顶板之间也设置有隔板，所述隔板和发热单元将机柜分隔成前、后两个上下通风的风道，分别称之为前风道和后风道，所述前风道同所述进风口相连通，所述后风道同所述出风口相连通，所述前风道中的气流通过各发热单元后汇入所述后风道中，所述前风道和后风道中的气流是独立的，不发生混合;
所述底部柜内换热器设置在靠近底板的位置，并且完全处于所述前风道内；
所述顶部柜内换热器设置在靠近顶板的位置，并且完全处于所述后风道内；
所述柜内底部换热器通过连接管与放置于柜外的中间换热器连接，形成密封的腔体，其中灌注换热介质，换热介质可根据传递热流量的大小，在所述腔体内实现动态平衡；
所述顶部柜内换热器通过连接管与中间换热器连接，形成密封的腔体，其中灌注换热介质，换热介质可根据传递热流量的大小，在所述腔体内实现动态平衡。
优先的， 发热单元之间设置有隔板， 以规范气流在机柜内的流动。
优先的，所述中间换热器的位置高于与其连接的所述柜内换热器的安装位置。
优先的，所述柜内换热器采用的换热介质为R22、R134a、R410a、R600a或R32中的任意一种。
优先的，所述中间换热器为板式换热器、管壳式换热器或套管式换热器。
优先的，所述中间换热器冷侧利用来自冷却塔的冷却水、或者利用来自冷水机组的冷冻水、或者利用来自冷机的冷媒。
优先的，所述中间换热器热侧串联或并联所述柜内换热器。
优先的，所述柜内换热器在机柜内是倾斜放置的，和水平面呈一定的倾角。
优先的，所述柜内换热器为翅片管式换热器或微通道换热器。
优先的， 所述中间换热器的冷侧之间可以串联或并联。
有益效果
由以上技术方案可知，本发明的制冷一体化机柜具有以下优点：
1 、本发明的制冷一体化机柜依靠换热介质在柜内换热器和中间换热器营造的密闭腔体内的气、液两相动态平衡将机柜的热量带走。
2 、本发明的柜内换热器可以与中间换热器以串联或并联的方式连接，结合对中间换热器冷侧的传热介质的温度调节，可以形成多级换热系统，灵活调节机柜内的各级换热温差，使机柜的进、出风温度保持一致，在机柜内部完成空气降温过程，无需再安装其他制冷末端，有效提高信息机房空间利用率。
3 、本发明的制冷一体化机柜大大缩短了信息机房内发热源与供冷末端的距离，可有效提高信息机房空调系统的性能，降低其制冷能耗。
 附图说明
图 1 为本发明的 制冷一体化机柜的立体结构示意图 。
图 2 为本发明'实施例一'的 制冷一体化机柜的平面结构示意图。
图 3 为本发明'实施例二'的 制冷一体化机柜的平面结构示意图。
图 4 为本发明的制冷一体化机柜的柜内换热器的结构示意图。
 本发明的最佳实施方式
本发明提供了一种 制冷一体化机柜 ，通过对机柜内部的气流进行优化组织，以保持各发热单元的进出口气流温度相对一致，避免了各发热单元的气流之间的相互影响和干扰，有效提高了每个发热单元的散热能力，实现了单个机柜自身的供冷平衡，解决了高热流密度信息机房气流组织难的问题。
为使本发明的目的、技术方案及优点更加清楚明白，以下参照附图并举实施例，对本发明进一步详细说明。
实施例一
图 1 和图 2 为本发明的制冷一体化机柜的结构示意图。制冷一体化机柜包括： 主支架 10 ， 前面板 1 ，左、右侧板 2 ，底板 3 ，背板 4 ，顶板 5 ， 发热单元 9 ；进风口 11 ，所述进风口 11 位于机柜的底板靠近背板的位置处；出风口 12 ，所述出风口 12 位于机柜的顶板靠近前面板的位置处；风扇 20 ，所述风扇 20 设置于底部柜内换热器 6 与前面板 1 之间和所述出风口 12 处；发热单元 9 安装在主支架 10 上，各发热单元之间设置有隔板 21 ，位于机柜最下端的发热单元 9 和底部柜内换热器 6 之间设置有隔板 21 ，位于机柜最上端的发热单元 9 和顶部柜内换热器 7 、 8 之间也设置有隔板 21 ，上述隔板 21 和发热单元 9 将机柜分隔成前、后两个上下通风的前风道 15 和后风道 16 ，前风道 15 同进风口 11 相连通，后风道 16 同出风口 12 相连通，前风道 15 中的气流通过各发热单元 9 后汇入后风道 16 中，前风道 15 和后风道 16 中的气流是独立的，不发生混合。
本发明的制冷一体化机柜还包括，底部柜内换热器 6 ，所述底部柜内换热器 6 设置在靠近 机柜的底板 3 的位置处，并且完全处于所述前风道 15 内； 顶部柜内换热器 7 、 8 ，所述顶部柜内换热器 7 、 8 设置在 机柜的顶板 5 下，并且完全处于所述后风道 16 内。 底部柜内换热器 6 通过连接管 13 、 14 与放置于柜外的中间换热器 17 连接，形成密封的腔体，其中灌注换热介质，换热介质可根据传递热流量的大小，在腔体内实现动态平衡；顶部柜内换热器 7 通过连接管 24 、 25 与中间换热器 19 连接，形成密封的腔体，其中灌注换热介质；顶部柜内换热器 8 通过连接管 22 、 23 与中间换热器 18 连接，形成密封的腔体，其中灌注换热介质。底部柜内换热器 6 和顶部柜内换热器 7 、 8 在机柜中是倾斜设置的，和水平面呈一定的倾角。中间换热器 17 、 18 、 19 的位置高于与其连接的底部柜内换热器 6 和顶部柜内换热器 7 、 8 的安装位置。
图 2 中 A 箭头方向为信息机房空气进入机柜后的流动方向。信息机房的环境空气进入机柜后，先流经机柜的底部柜内换热器 6 ，温度降低后，经前风道 15 送至各发热单元 9 中，冷却发热单元 9 后成为热空气，热空气汇入后风道 16 中，在位于机柜顶部的风扇 20 的作用下，后风道 16 中的空气掠过顶部柜内换热器 7 、 8 。这样，机柜内空气的热量传递到底部柜内换热器 6 和顶部柜内换热器 7 、 8 中，柜内换热器 6 、 7 、 8 中的换热介质被加热蒸发，换热介质蒸汽通过连接管流通到中间换热器 17 、 18 、 19 中，并在中间换热器 17 、 18 、 19 中放出热量，冷凝成液体，液体经连接管再次流回柜内换热器中。
中间换热器 17 、 18 、 19 的冷量由冷侧换热介质提供， B 箭头方向为中间换热器 17 、 18 、 19 中冷侧换热介质的流动方向。 中间换热器 17 、 18 、 19 冷侧换热介质可以是来自冷却塔的冷却水、或者来自冷水机组及冷机的冷媒。 多个中间换热器 17 、 18 、 19 的冷侧可以并联或串联。
制冷一体化机柜通过调节中间换热器 17 、 18 、 19 中冷侧换热介质的温度及流量来调节柜内换热器 6 、 7 、 8 的表面温度，使柜内换热器 6 、 7 、 8 表面温度在空气的露点温度以上，保证柜内为全显热换热，避免在柜内产生冷凝水。
图 4 为本发明的制冷一体化机柜的柜内换热器的结构示意图，柜内换热器 6 、 7 、 8 为翅片管式换热器或微通道换热器，其中包含翅片 26 。
实施例二
图 3 示出了本发明的另一实施例。从图 3 中可以看出，本实施例与图 2 示出的实施例一不同的是，空气流从柜内底部换热器 6 的底部掠过后进入前风道 15 ，柜内顶部换热器 8 位于柜内顶部换热器 7 的正上方，空气流先掠过柜内顶部换热器 7 ，然后掠过柜内顶部换热器 8 ，最后经风扇 20 排出机柜。
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内，所做的任何修改、等同替换、改进等，均应包含在本发明保护的范围之内。

Claims (10)

  1. 一种 制冷一体化机柜 ，包括：
    主支架（ 10 ），发热单元（ 9 ），前面板（ 1 ），背板（ 4 ），左、右侧板（ 2 ），顶板（ 5 ），底板（ 3 ），及柜内换热器（ 6 、 7 、 8 ）；
    至少一进风口（ 11 ），所述进风口（ 11 ）位于所述机柜的底板（ 3 ）上；
    至少一出风口（ 12 ），所述出风口（ 12 ）位于所述机柜的顶板（ 5 ）上；
    至少一组风扇（ 20 ），所述风扇（ 20 ）设置于靠近所述进风口（ 11 ）处和 / 或所述出风口（ 12 ）处；
    其特征在于：
    所述柜内换热器（ 6 、 7 、 8 ）包括至少一个底部柜内换热器（ 6 ）和 / 或至少一个顶部柜内换热器（ 7 、 8 ）；
    所述发热单元（ 9 ）安装在主支架（ 10 ）上，其中放置发热的电子设备，所述的电子设备为计算机服务器、数据存储设备、传输设备或电源设备；
    位于机柜最下端的发热单元（ 9 ）和底板（ 3 ）之间设置有隔板（ 21 ），位于机柜最上端的发热单元（ 9 ）和顶板（ 5 ）之间也设置有隔板（ 21 ），所述隔板（ 21 ）和发热单元（ 9 ）将机柜分隔成前、后两个上下通风的风道，分别称之为前风道（ 15 ）和后风道（ 16 ），所述前风道（ 15 ）同所述进风口（ 11 ）相连通，所述后风道（ 16 ）同所述出风口（ 12 ）相连通，所述前风道（ 15 ）中的气流通过各发热单元（ 9 ）后汇入所述后风道（ 16 ）中，所述前风道（ 15 ）和后风道（ 16 ）中的气流是独立的，不发生混合；
    所述底部柜内换热器（ 6 ）设置在 靠近底板（ 3 ）的位置，并且完全处于所述前风道（ 15 ）内；
    所述顶部柜内换热器（ 7 、 8 ）设置在 靠近顶板（ 5 ）的位置，并且完全处于所述后风道（ 16 ）内；
    所述柜内底部换热器（ 6 ）通过连接管（ 13 、 14 ）与放置于柜外的中间换热器（ 17 ）连接，形成密封的腔体，其中灌注换热介质，换热介质可根据传递热流量的大小，在所述腔体内实现动态平衡；
    所述顶部柜内换热器（ 7 、 8 ）通过连接管（ 22 、 23 、 24 、 25 ）与中间换热器（ 18 、 19 ）连接，形成密封的腔体，其中灌注换热介质，换热介质可根据传递热流量的大小，在所述腔体内实现动态平衡。
  2. 根据权利要求1所述的制冷一体化机柜，其特征在于，所述发热单元（9）之间设置隔板（21），以规范气流在机柜内的流动。
  3. 根据权利要求1所述的制冷一体化机柜，其特征在于，所述中间换热器（17、18、19）的位置高于与其连接的所述柜内换热器（6、7、8）的安装位置。
  4. 根据权利要求1至3任一项所述的制冷一体化机柜，其特征在于，所述中间换热器（17、18、19）为板式换热器、管壳式换热器或套管式换热器。
  5. 根据权利要求1所述的制冷一体化机柜，其特征在于，所述中间换热器（17、18、19）冷侧利用来自冷却塔的冷却水、或者利用来自冷水机组的冷冻水、或者利用来自冷机的冷媒。
  6. 根据权利要求1至3任一项所述的制冷一体化机柜，其特征在于，所述中间换热器（17、18、19）热侧串联或并联所述柜内换热器（6、7、8）。
  7. 根据权利要求1至3任一项所述的制冷一体化机柜，其特征在于，所述柜内换热器（6、7、8）在机柜内是倾斜放置的，和水平面呈一定的倾角。
  8. 根据权利要求1至3任一项所述的制冷一体化机柜，其特征在于，所述柜内换热器（6、7、8）采用的换热介质为R22、R134a、R410a、R600a或R32中的任意一种。
  9. 根据权利要求1至3任一项所述的制冷一体化机柜，其特征在于，所述柜内换热器（6、7、8）为翅片管式换热器或微通道换热器。
  10. 根据权利要求1至3任一项所述的制冷一体化机柜，其特征在于，所述中间换热器（17、18、19）的冷侧之间可以串联或并联。
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