WO2023077626A1 - 内外循环可调式制冷系统及数据中心 - Google Patents

内外循环可调式制冷系统及数据中心 Download PDF

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Publication number
WO2023077626A1
WO2023077626A1 PCT/CN2021/139129 CN2021139129W WO2023077626A1 WO 2023077626 A1 WO2023077626 A1 WO 2023077626A1 CN 2021139129 W CN2021139129 W CN 2021139129W WO 2023077626 A1 WO2023077626 A1 WO 2023077626A1
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hole
air
internal
flow channel
refrigeration system
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English (en)
French (fr)
Inventor
居静
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Hebei Qinhuai Data Co Ltd
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Hebei Qinhuai Data Co Ltd
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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
    • 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
    • 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
    • H05K7/20181—Filters; Louvers
    • 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

Definitions

  • the application relates to the field of data center equipment, in particular to a refrigeration system with adjustable internal and external cycles and a data center.
  • the traditional computer room air conditioner products are composed of indoor unit and outdoor unit.
  • the outdoor unit is relatively simple, only including condenser and condensing fan, while the indoor unit is more complex, including: compressor, evaporator, expansion valve, and control system.
  • the indoor unit is generally made in the form of a cabinet, and is installed around the machine room or in a suitable place in the middle area of the machine room.
  • the purpose of this application is to provide a refrigeration system with adjustable internal and external circulation and a data center, which can solve the problems of poor cooling effect and large power consumption.
  • the present application provides a refrigeration system with adjustable internal and external circulation, which includes a housing and a refrigeration module.
  • the housing is provided with a partition, and the partition divides the housing into an equipment area and a machine room. area; the equipment area is provided with an air channel, an air outlet and an air inlet, and the refrigeration module is installed in the air channel;
  • the partition plate is provided with a first through hole and a second through hole, so The first through hole and the second through hole are respectively located at both ends of the air flow channel, and the second through hole communicates the air flow channel with the machine room area;
  • There is a two-way selection mechanism and the two-way selection mechanism is used to control the communication between the first through hole and the air flow channel or the air outlet;
  • the air inlet is provided with a switch valve, and the switch valve is used to It is used to control whether the air inlet is in communication with the air passage, and the air inlet and the second through hole are located at both ends of the refrigeration module.
  • a machine room cabinet is provided in the machine room area, and the machine room cabinet divides the machine room into a hot aisle and a cold aisle, the first through hole communicates with the hot aisle, and the cold aisle The channel communicates with the second through hole.
  • the air outlet and the air inlet are located on different sides of the housing.
  • an air purifier is also provided in the air flow channel, and the air purifier is arranged between the refrigeration module and the air inlet for air purification of the incoming air.
  • a fan and a water baffle are further provided in the air passage, and the fan and the water baffle are located between the refrigeration module and the second through hole.
  • the refrigeration module includes a mechanical refrigeration device and a cooling coil assembly arranged side by side; a first temperature sensor is provided in the cold aisle, and the first temperature sensor is located in the cold aisle away from the end of the second through hole.
  • a second temperature sensor and a rain sensor are connected to the outside of the casing, and the opening and closing of the two-way selection mechanism and the switching valve are judged by the second temperature sensor and the rain sensor.
  • the two-way selection mechanism includes a lateral movement mechanism and a selection plate, and the lateral movement mechanism is used to drive the selection plate to slide in the first through hole.
  • a chute is provided in the first through hole, and one end of the selection plate is slidably connected in the chute;
  • the lateral movement mechanism includes a motor and a screw, and the motor is fixed on In the partition, the screw is rotatably connected in the chute, the screw is drivingly connected to the motor and screwed to the selection plate.
  • another aspect of the present application provides a data center, including the above-mentioned external circulation adjustable refrigeration system, wherein the housing adopts a container.
  • the technical solution provided by the present application can control the first through hole to communicate with the air flow channel or the air outlet by setting a two-way selection mechanism, and then cooperate with the switch valve to control the opening and closing of the air inlet, which can be adjusted according to the external environment (external environment).
  • the environment includes the external air temperature and whether it is rainy or not) to switch the internal circulation refrigeration or external circulation refrigeration in the casing to cool down, and save power while ensuring the cooling effect inside the casing; at the same time, in the air flow channel There is an air purifier inside to purify the incoming air during external circulation, avoiding the harmfulness of impurities in the air to the internal machine room, and ensuring the normal operation of the machine room; at the same time, the refrigeration module uses a mechanical refrigeration device and a cooling coil assembly. According to the detection signal of the first temperature sensor, a mechanical refrigeration device is selected to ensure the cooling effect.
  • Fig. 1 is a schematic diagram of the external circulation structure of an internal and external circulation adjustable refrigeration system in an embodiment provided by the present application;
  • Fig. 2 is a schematic diagram of the external circulation structure of a refrigeration system with adjustable internal and external circulation in an embodiment provided by the present application;
  • Fig. 3 is a schematic axonometric view of a partition described in an embodiment provided by the present application.
  • Fig. 4 is a partial structural schematic diagram of Fig. 3;
  • the exemplary term “below” can encompass both an orientation of above and below.
  • the device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
  • connection can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediary, or two devices, components or Internal connectivity between components.
  • a refrigeration system with adjustable internal and external cycles including a housing 1 and a refrigeration module 4, and the housing 1 is equipped with The partition 2, the partition 2 divides the inside of the housing 1 into an equipment area 12 and a machine room area 11, wherein the equipment area 12 is used to place refrigeration equipment, and the machine room area 11 is used to place machine room equipment; the equipment area 12 is provided with air flow 121, air exhaust port 122 and air inlet 123, the refrigeration module 4 is installed in the air flow channel 121; the air flow channel 121 is used to flow through the passage of circulating air, and the air exhaust port 122 is used to open the external circulation, the hot air from here The air inlet 123 is used to enter the housing 1 from the cold air outside when the external circulation is turned on.
  • the partition plate 2 is provided with a first through hole 21 and a second through hole 22, the first through hole 21 is used for the cooling air circulation outlet in the machine room area 11, and the second through hole 22 is used for the heat dissipation air in the machine room area 11.
  • the circulation inlet specifically, the first through hole 21 and the second through hole 22 are respectively located at both ends of the air flow channel 121 and the second through hole 22 communicates the air flow channel 121 with the machine room area 11;
  • the present application is provided with a double-way selection mechanism 5 in the first through hole 21, and the double-way selection mechanism 5 is used to control the first through hole 21 and the air flow channel 121 Or the air outlet 122 is connected; at the same time, an on-off valve 6 is provided at the air inlet 123, and the on-off valve 6 is used to control whether the air inlet 123 is connected to the air flow channel 121, and the air inlet 123 and the second through hole 22 are located in the refrigeration module 4 ends.
  • the two-way selection mechanism 5 controls the first through hole 21 to communicate with the air flow channel 121 (the first through hole 21 is naturally closed with the air outlet 122), and the switch The valve 6 closes the air inlet 123.
  • the air circulates between the machine room area 11 and the equipment area 12.
  • the cooling module 4 cools the passing air.
  • the two-way selection mechanism 5 controls the first through hole 21 to communicate with the air outlet 122 (the first through hole 21 is naturally closed with the air flow channel 121),
  • the switch valve 6 opens the air inlet 123.
  • the cold air enters the air flow channel 121 from the air inlet 123, and enters into the machine room area 11 through the second through hole 22 for heat exchange to dissipate heat from the equipment in the machine room.
  • the heated air flows out to the outside of the housing 1 through the first through hole 21 and the air outlet 122 .
  • the computer room area 11 is specifically arranged, and there is a computer room cabinet 3 inside it.
  • the computer room cabinet 3 is usually composed of a plurality of cabinets arranged in a straight line; the computer room cabinet 3 divides the computer room area 11 into a hot aisle 31 and a cold aisle 32.
  • the first through hole 21 communicates with the hot aisle 31, and the cold aisle 32 communicates with the second through hole 22, so that the computer room area 11 is divided into two air passages, the hot aisle and the cold aisle, so as to facilitate the uniform heat dissipation of the computer room cabinet 3.
  • the air outlet 122 and the air inlet 123 are located on different sides of the housing 1 , so as to prevent the air exhaust and air inlet of the housing 1 from being mixed together and affect the overall heat dissipation effect.
  • the external air will directly enter the housing 1 to directly dissipate heat from the equipment in the equipment room cabinet 3.
  • an air cleaner 7 is also provided in the air passage 121, and the air cleaner 7 is arranged between the refrigeration module 4 and the air inlet 123, and is used for air purification of the incoming air.
  • the air purifier 7 can also be located between the first through hole 21 and the refrigeration module 4 at the same time, and the air purifier can also be used when the air needs to be purified during the internal circulation process.
  • a fan 71 and a water baffle 72 are also provided in the air passage 121, and their positions are set such that the fan 71 and the water baffle 72 are located between the refrigeration module 4 and the second through hole 22, wherein the fan 71 can Adjust the power to adjust the air circulation speed according to the actual situation; the water baffle 72 is optional and used in areas with high humidity in the air to prevent the humidity from affecting the normal use of the equipment in the cabinet in the computer room.
  • the refrigeration module 4 is mainly used to exchange heat and cool the hot air passing through it into cold air, so as to facilitate the heat dissipation of the machine room cabinet.
  • the refrigeration module 4 includes a mechanical refrigeration device and a cooling coil assembly arranged side by side;
  • a first temperature sensor 321 is provided in the cold aisle 32, and the actual temperature situation in the cold aisle 32 is detected by the first temperature sensor 321 to determine the use of the mechanical refrigeration device and the cooling coil assembly.
  • the cooling coil assembly is preferred.
  • the mechanical refrigeration device is used; in the external circulation, the first temperature If the temperature displayed by the sensor 321 is within the predetermined temperature range, external air is used for cooling, and secondly, the cooling coil assembly and the mechanical refrigeration device are turned on in sequence.
  • the first temperature sensor 321 is located at the end of the cold aisle 32 away from the second through hole 22 , this position is farthest from the air inlet, and is the best temperature judgment standard.
  • the application connects a second temperature sensor 8 and a rain sensor 9 outside the casing 1, and judges the two-way selection through the second temperature sensor 8 and the rain sensor 9
  • the two-way selection mechanism 5 includes a lateral movement mechanism and a selection plate 51 , and the lateral movement mechanism is used to drive the selection plate 51 to slide in the first through hole 21 .
  • the first through hole 21 is provided with a chute, and one end of the selection plate 51 is slidably connected in the chute;
  • the lateral movement mechanism includes a motor 52 and a screw 53, the motor 52 is fixed in the dividing plate 2, and the screw 53 is rotatably connected in the chute Inside, the screw rod 53 is drivingly connected with the motor 52 and the screw rod 53 is screwed with the selection plate 51 .
  • the motor 52 is used to drive the screw rod 53 to rotate, thereby driving the selection plate 51 to slide in the chute, and then select and switch between the air flow channel 121 and the air outlet 122 .
  • the present application also provides a data center, including the above-mentioned external circulation adjustable refrigeration system, wherein the housing 1 adopts a container.
  • the technical solution provided by the present application can control the first through hole to communicate with the air flow channel or the air outlet by setting a two-way selection mechanism, and then cooperate with the switch valve to control the opening and closing of the air inlet, which can be adjusted according to the external environment (external environment).
  • the environment includes the external air temperature and whether it is rainy or not) to switch the internal circulation refrigeration or external circulation refrigeration in the casing to cool down, and save power while ensuring the cooling effect inside the casing; at the same time, in the air flow channel There is an air purifier inside to purify the incoming air during external circulation, avoiding the harm of impurities in the air to the internal machine room, and ensuring the normal operation of the machine room; at the same time, the refrigeration module uses a mechanical refrigeration device and a cooling coil assembly. According to the detection signal of the first temperature sensor, a mechanical refrigeration device is selected to ensure the cooling effect.

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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)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

一种内外循环可调式制冷系统，包括壳体（1）和制冷模块（4），所述壳体（1）内设有隔板（2），所述隔板（2）将所述壳体（1）内分为设备区（12）和机房区（11）；所述设备区（12）内设有空气流道（121）、排风口（122）和进风口（123），所述制冷模块（4）安装在所述空气流道（121）内；所述隔板（2）上设有第一通孔（21）和第二通孔（22）；所述第一通孔（21）内设有双通选择机构（5），所述双通选择机构（5）用于控制所述第一通孔（21）与所述空气流道（121）或所述排风口（122）连通；所述进风口（123）处设有开关阀（6），所述开关阀（6）用于控制所述进风口（123）与所述空气流道（121）是否连通，且所述进风口（123）和所述第二通孔（22）位于所述制冷模块（4）的两端。

Description

内外循环可调式制冷系统及数据中心 技术领域
本申请涉及数据中心设备领域，特别涉及一种内外循环可调式制冷系统及数据中心。
背景技术
近年来，数据中心快速发展，其内部热密度快速上升，加上节能减排压力的不断增加，传统机房专用空调机越来越不适应数据中心机房的要求，特别是节能性要求与制冷密度的要求，传统机房空调产品由室内机和室外机组成，其中室外机比较简单，仅包含冷凝器和冷凝风机，而室内机比较复杂，包含：压缩机、蒸发器、膨胀阀、控制系统。其中室内机一般做成立柜形式，安装于机房的四周或机房中间区域适当地方。
随着机房服务器的密度增加、发热量增大，机房的热密度增大，传统机房空调设备越来越不能满足机房制冷的需要。例如：由于数据中心热负荷非常大，有时即使在机房的四周摆满了空调系统，仍不能满足制冷量的要求，即使在机房中间也安装空调机也仍然满足不了机房热负荷的需要，且电能消耗极大。
发明内容
本申请的目的在于提供一种内外循环可调式制冷系统及数据中心，可以解决降温效果不佳和电能消耗大的问题。
为实现上述目的，本申请一方面提供一种内外循环可调式制冷系统，包括壳体和制冷模块，所述壳体内设有隔板，所述隔板将所述壳体内分为设备区和机房区；所述设备区内设有空气流道、排风口和进风口，所述制冷模块安装在所述空气流道内；所述隔板上设有第一通孔和第二通孔，所述第一通孔和所述第二通孔分别位于所述空气流道的两端且所述第二通孔将所述空气流道和所述机房区连通；所述第一通孔内设有双通选择机构，所述双通选择机构用于控制所述第一通孔与所述空气流道或所述排风口连通；所述进风口处设有开关阀，所述开关阀用于控制所述进风口与所述空气流道是否连通，且所述进风口和所 述第二通孔位于所述制冷模块的两端。
作为上述技术方案的进一步改进：所述机房区内设有机房柜，所述机房柜将所述机房区分为热通道和冷通道，所述第一通孔与所述热通道连通，所述冷通道与所述第二通孔连通。
作为上述技术方案的进一步改进：所述排风口和所述进风口位于所述壳体的不同侧面上。
作为上述技术方案的进一步改进：所述空气流道内还设有空气净化器，且所述空气净化器设置在所述制冷模块与所述进风口之间，用于对进风进行空气净化。
作为上述技术方案的进一步改进：所述空气流道内还设有风机和挡水板，所述风机和所述挡水板位于所述制冷模块和所述第二通孔之间。
作为上述技术方案的进一步改进：所述制冷模块包括并列设置的机械制冷装置和冷却盘管组件；所述冷通道内设有第一温度传感器，且所述第一温度传感器位于所述冷通道内远离所述第二通孔一端。
作为上述技术方案的进一步改进：所述壳体的外面连接有第二温度传感器和雨水传感器，通过第二温度传感器和雨水传感器判断双通选择机构和开关阀的开闭。
作为上述技术方案的进一步改进：所述双通选择机构包括横向移动机构和选择板，所述横向移动机构用于带动所述选择板在所述第一通孔内滑动。
作为上述技术方案的进一步改进：所述第一通孔内设有滑槽，所述选择板的一端滑动连接在所述滑槽内；所述横向移动机构包括电机和螺杆，所述电机固定在所述隔板内，所述螺杆转动连接在所述滑槽内，所述螺杆与所述电机驱动连接且螺杆与所述选择板螺纹连接。
为实现上述目的，本申请另一方面还提供一种数据中心，包括上述的外循环可调式制冷系统，其中，所述壳体采用集装箱。
由此可见，本申请提供的技术方案，可以通过设置双通选择机构控制第一通孔与空气流道或排风口连通，再配合开关阀控制进风口的开闭，可根据外部环境(外部环境包括外部的空气温度和外部的是否为雨天)进行切换壳体内进行内循环制冷或者外循环制冷的方式进行降温，在保证壳体内部降温效果的情况下，节省电能；同时，在空气流道内设有空气净化器，在外循环时对进风进行空气净化，避免空气中的杂质对内部机房产生危害，保证机房的正常运行； 同时，制冷模块采用机械制冷装置和冷却盘管组件配合使用，根据第一温度传感器的检测信号，选择使用机械制冷装置，保证制冷效果。
附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本申请提供的一种实施方式中内外循环可调式制冷系统的外循环结构示意图；
图2是本申请提供的一种实施方式中内外循环可调式制冷系统的外循环结构示意图；
图3是本申请提供的一种实施方式中所述的隔板的轴测示意图；
图4是图3的部分结构示意图；
图中：1、壳体；11、机房区；12、设备区；121、空气流道；122、排风口；123、进风口；2、隔板；21、第一通孔；22、第二通孔；3、机房柜；31、热通道；32、冷通道；321、第一温度传感器；4、制冷模块；5、双通选择机构；51、选择板；52、电机；53、螺杆；6、开关阀；7、空气净化器；71、风机；72、挡水板；8、第二温度传感器；9、雨水传感器。
具体实施方式
为使本申请的目的、技术方案和优点更加清楚，下面将结合附图对本申请实施方式作进一步地详细描述。本申请使用的例如“上”、“上方”、“下”、“下方”、“第一端”、“第二端”、“一端”、“另一端”等表示空间相对位置的术语是出于便于说明的目的来描述如附图中所示的一个单元或特征相对于另一个单元或特征的关系。空间相对位置的术语可以旨在包括设备在使用或工作中除了图中所示方位以外的不同方位。例如，如果将图中的设备翻转，则被描述为位于其他单元或特征“下方”或“之下”的单元将位于其他单元或特征“上方”。因此，示例性术语“下方”可以囊括上方和下方这两种方位。设备可以以其他方式被定向(旋转90度或其他朝向)，并相应地解释本文使用的与空间相关的描述语。
此外，术语“安装”、“设置”、“设有”、“连接”、“滑动连接”、“固定”、“套接”应做广义理解。例如，“连接”可以是固定连接，可拆卸连接，或整体式构造；可以是机械连接，或电连接；可以是直接相连，或者是通过中间媒介间接相连，又或者是两个装置、元件或组成部分之间内部的连通。对于本领域普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
随着机房服务器的密度增加、发热量增大，机房的热密度增大，传统机房空调设备越来越不能满足机房制冷的需要。例如：由于数据中心热负荷非常大，有时即使在机房的四周摆满了空调系统，仍不能满足制冷量的要求，即使在机房中间也安装空调机也仍然满足不了机房热负荷的需要，且电能消耗极大。因此急需一种内外循环可调式制冷系统及数据中心，可以解决降温效果不佳和电能消耗大的问题。
下面将结合附图，对本申请实施方式中的技术方案进行清楚、完整地描述。显然，本申请所描述的实施方式仅仅是本申请一部分实施方式，而不是全部的实施方式。基于本申请中的实施方式，本领域技术人员在没有做出创造性劳动前提下所获得的所有其他实施方式，都属于本申请保护的范围。
如图1至图4所示，在一种可实现的实施方式中，为了实现上述目的，提供了一种内外循环可调式制冷系统，包括壳体1和制冷模块4，壳体1内设有隔板2，隔板2将壳体1内分为设备区12和机房区11，其中，设备区12用于放置制冷设备，机房区11用于放置机房设备；设备区12内设有空气流道121、排风口122和进风口123，制冷模块4安装在空气流道121内；空气流道121用于循环空气的流经通道，排风口122用于开启外循环时，热空气从此处排出；进风口123则是用于开启外循环时，室外的冷空气，从此处进入至壳体1内。
隔板2上设有第一通孔21和第二通孔22，第一通孔21用于机房区11内的散热空气循环出口，第二通孔22用于机房区11内的散热空气的循环进口，具体的，第一通孔21和第二通孔22分别位于空气流道121的两端且第二通孔22将空气流道121和机房区11连通；
为了实现内循环和外循环两种散热方式的切换动作，本申请在第一通孔21内设有双通选择机构5，双通选择机构5用于控制第一通孔21与空气流道121或排风口122连通；同时在，进风口123处设有开关阀6，开关阀6用于控制进风口123与空气流道121是否连通，且进风口123和第二通孔22位于制冷模块 4的两端。
具体实施场景中，
当需要进行散热内循环动作时，具体参见图2，此时，双通选择机构5控制第一通孔21与空气流道121连通(第一通孔21自然与排风口122封闭)，开关阀6将进风口123进行关闭，此时，空气在机房区11和设备区12之间进行循环，再循环的过程中，由制冷模块4对途径的空气进行制冷。
当需要进行散热外循环动作时，具体参见图1，此时，双通选择机构5控制第一通孔21与排风口122进行连通(第一通孔21自然与空气流道121封闭)，开关阀6将进风口123进行打开，此时，冷空气自进风口123进入至空气流道121内，并经过第二通孔22进入至机房区11内进行换热对机房设备进行散热，换热后的热空气经过第一通孔21和排风口122流出至壳体1外面。
机房区11具体设置，其内设有机房柜3，机房柜3通常由多个呈直线排列设置的机柜组成；机房柜3将机房区11分为热通道31和冷通道32，第一通孔21与热通道31连通，冷通道32与第二通孔22连通，从而将机房区11分为热通道和冷通道两个空气流道，从而方便对机房柜3进行均匀散热。
作为优选的，排风口122和进风口123位于壳体1的不同侧面上，从而避免壳体1的排风和进风混乱在一起，影响整体的散热效果。
作为优选的，由于采用外循环时，外部空气会直接进入至壳体1内对机房柜3设备进行直接散热，为了避免外部空气中含有的硫化物、氮氧化物等污染物对机房柜3内的设备产生影响，本申请在空气流道121内还设有空气净化器7，且空气净化器7设置在制冷模块4与进风口123之间，用于对进风进行空气净化。当然，空气净化器7也可以同时位于第一通孔21和制冷模块4之间，在内循环的过程中，当空气需要净化时，亦可以采用空气净化。
本申请中，空气流道121内还设有风机71和挡水板72，其位置设置为，风机71和挡水板72位于制冷模块4和第二通孔22之间，其中，风机71可调节功率，从而根据实际情况调节空气循环速度；挡水板72，则是选配使用，对于空气中的湿气高的地区进行使用，避免湿气影响机房柜内设备的正常使用。
制冷模块4主要是用于对经过其的热空气进行换热降温成冷空气，从而便于对机房柜进行散热，目前，市场上的制冷模块4各式各样，本申请再考虑到，保证制冷效果的情况下，制冷模块4包括并列设置的机械制冷装置和冷却盘管组件；
并且，在冷通道32内设有第一温度传感器321，通过第一温度传感器321检测冷通道32内的实际温度情况，来判别机械制冷装置和冷却盘管组件的使用情况，通常情况下，在内循环中，第一温度传感器321显示的温度在预定温度范围内的，优先选用冷却盘管组件，当冷却盘管组件难以达到降温效果的话，再启用机械制冷装置；在外循环中，第一温度传感器321显示的温度在预定温度范围内的，采用外部空气制冷，其次，再依次开启冷却盘管组件和机械制冷装置。
并且，第一温度传感器321位于冷通道32内远离第二通孔22一端，这个位置距离进风口最远，最为温度判断标准最佳。
为了判断何时采用外循环散热和何时采用内循环散热，本申请在壳体1的外面连接有第二温度传感器8和雨水传感器9，通过第二温度传感器8和雨水传感器9判断双通选择机构5和开关阀6的开闭，具体位置：当雨天时，采用内循环；当非雨天，且外面温度低于预定值时，采用外循环。
双通选择机构5的方式有多种，其中本申请中的双通选择机构5包括横向移动机构和选择板51，横向移动机构用于带动选择板51在第一通孔21内滑动。且第一通孔21内设有滑槽，选择板51的一端滑动连接在滑槽内；横向移动机构包括电机52和螺杆53，电机52固定在隔板2内，螺杆53转动连接在滑槽内，螺杆53与电机52驱动连接且螺杆53与选择板51螺纹连接。采用电机52带动螺杆53转动，从而带动选择板51在滑槽内滑动，进而在空气流道121和排风口122中间进行选择切换。
基于相同的发明构思，本申请还提供了一种数据中心，包括上述的的外循环可调式制冷系统，其中，壳体1采用集装箱。
由此可见，本申请提供的技术方案，可以通过设置双通选择机构控制第一通孔与空气流道或排风口连通，再配合开关阀控制进风口的开闭，可根据外部环境(外部环境包括外部的空气温度和外部的是否为雨天)进行切换壳体内进行内循环制冷或者外循环制冷的方式进行降温，在保证壳体内部降温效果的情况下，节省电能；同时，在空气流道内设有空气净化器，在外循环时对进风进行空气净化，避免空气中的杂质对内部机房产生危害，保证机房的正常运行；同时，制冷模块采用机械制冷装置和冷却盘管组件配合使用，根据第一温度传感器的检测信号，选择使用机械制冷装置，保证制冷效果。
以上所述仅为本申请的较佳实施例，并不用以限制本申请，凡在本申请的 精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (10)

  1. 一种内外循环可调式制冷系统，其特征在于，包括壳体(1)和制冷模块(4)，所述壳体(1)内设有隔板(2)，所述隔板(2)将所述壳体(1)内分为设备区(12)和机房区(11)；
    所述设备区(12)内设有空气流道(121)、排风口(122)和进风口(123)，所述制冷模块(4)安装在所述空气流道(121)内；
    所述隔板(2)上设有第一通孔(21)和第二通孔(22)，所述第一通孔(21)和所述第二通孔(22)分别位于所述空气流道(121)的两端且所述第二通孔(22)将所述空气流道(121)和所述机房区(11)连通；
    所述第一通孔(21)内设有双通选择机构(5)，所述双通选择机构(5)用于控制所述第一通孔(21)与所述空气流道(121)或所述排风口(122)连通；
    所述进风口(123)处设有开关阀(6)，所述开关阀(6)用于控制所述进风口(123)与所述空气流道(121)是否连通，且所述进风口(123)和所述第二通孔(22)位于所述制冷模块(4)的两端。
  2. 根据权利要求1所述的内外循环可调式制冷系统，其特征在于，所述机房区(11)内设有机房柜(3)，所述机房柜(3)将所述机房区(11)分为热通道(31)和冷通道(32)，所述第一通孔(21)与所述热通道(31)连通，所述冷通道(32)与所述第二通孔(22)连通。
  3. 根据权利要求1所述的内外循环可调式制冷系统，其特征在于，所述排风口(122)和所述进风口(123)位于所述壳体(1)的不同侧面上。
  4. 根据权利要求1所述的内外循环可调式制冷系统，其特征在于，所述空气流道(121)内还设有空气净化器(7)，且所述空气净化器(7)设置在所述制冷模块(4)与所述进风口(123)之间，用于对进风进行空气净化。
  5. 根据权利要求1或4所述的内外循环可调式制冷系统，其特征在于，所述空气流道(121)内还设有风机(71)和挡水板(72)，所述风机(71)和所 述挡水板(72)位于所述制冷模块(4)和所述第二通孔(22)之间。
  6. 根据权利要求2所述的内外循环可调式制冷系统，其特征在于，所述制冷模块(4)包括并列设置的机械制冷装置和冷却盘管组件；所述冷通道(32)内设有第一温度传感器(321)，且所述第一温度传感器(321)位于所述冷通道(32)内远离所述第二通孔(22)一端。
  7. 根据权利要求1所述的内外循环可调式制冷系统，其特征在于，所述壳体(1)的外面连接有第二温度传感器(8)和雨水传感器(9)，通过第二温度传感器(8)和雨水传感器(9)判断双通选择机构(5)和开关阀(6)的开闭。
  8. 根据权利要求1所述的内外循环可调式制冷系统，其特征在于，所述双通选择机构(5)包括横向移动机构和选择板(51)，所述横向移动机构用于带动所述选择板(51)在所述第一通孔(21)内滑动。
  9. 根据权利要求8所述的内外循环可调式制冷系统，其特征在于，所述第一通孔(21)内设有滑槽，所述选择板(51)的一端滑动连接在所述滑槽内；所述横向移动机构包括电机(52)和螺杆(53)，所述电机(52)固定在所述隔板(2)内，所述螺杆(53)转动连接在所述滑槽内，所述螺杆(53)与所述电机(52)驱动连接且螺杆(53)与所述选择板(51)螺纹连接。
  10. 一种数据中心，其特征在于，包括权利要求1至9任意一项所述的外循环可调式制冷系统，其中，所述壳体(1)采用集装箱。
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