CN203327463U - Airtight heat removal machine cabinet - Google Patents

Abstract

The utility model provides an airtight heat exhausting cabinet, which comprises a movable rack (1) with a sealed top plate and a bottom plate, a sealed front door (2), a sealed right side panel (3), a sealed rear door (4), and a sealed rear door (4). The heat exchange unit (5), the server (16) is installed on the movable frame (1), and the left heat exchange unit (5) includes a sealed left side plate (7) and an air duct partition in sequence from outside to inside (8), heat exchanger (9), air duct partition assembly (10), also includes sealing left front plate (13) and sealing left rear plate (6) for sealing the front and rear sides, and the left side The cross-flow fan (11) on the left front or left rear side of the heat exchange unit (5). The utility model adopts the idea of point-to-point airtight refrigeration, which isolates the cabinet server with local hot spots from the ambient temperature in the machine room, and reduces the heat dissipation and discharge thermal resistance of the server by cooling close to the heat source, so as to discharge heat with low consumption and high efficiency.

Description

A kind of airtight heat exhaust cabinet

technical field

The utility model relates to the heat exhausting field of a computer room with high heat dissipation density, in particular to an airtight heat exhausting cabinet.

Background technique

The integration density of cabinet servers in the computer room is getting higher and higher, and the heat generated by the server is getting larger and larger. In order to ensure that the servers in the high heat dissipation density computer room work at the most suitable ambient temperature, the current heat dissipation method of the high heat dissipation density computer room is also constantly changing. .

At present, there are three main ways to dissipate heat in a computer room with high heat dissipation density:

One is precise air supply from the precision air conditioner. In this way, air ducts are used in the machine room to direct the cold air from the precision air conditioner to the server cabinet. The main advantage is that the cold air is directly directed to the server cabinet, so that the air intake of the server in the cabinet is in an ideal low temperature state. The disadvantage is that the fan needs to use a fan with a large pressure head that can overcome the resistance of the air duct, so the power consumption of the fan is relatively large, and the power consumption of the precision air conditioner is relatively large; The uneven distribution of cooling capacity cannot effectively solve the problem of local hot spots in the computer room. On the other hand, the distance between the air outlet of the server cabinet in the computer room and the return air outlet of the precision air conditioner is different, and it is easy to cause the long-distance cabinet exhaust and return air to be unsmooth and make the local environment of the computer room Localized hot spots where the temperature is higher than the set point.

The second is to use the inter-row air conditioner. The inter-row air conditioner adopts the direct evaporative type or the chilled water type. It is arranged in the middle of the two cabinets to achieve nearby cooling. Because the inter-row air conditioner is arranged between two cabinets, compared with the precision air conditioner, its air supply and transmission distance is shorter, and there is no need to use a large-pressure fan with high power consumption. It is also close to the heat source for cooling, which solves the problem to a certain extent in the machine room. local hot spots. However, in order to ensure that the air supply of the inter-row air conditioner can be effectively transmitted to the air inlet of the server cabinet, and the return air can effectively absorb the high-temperature exhaust air of the server cabinet, it needs to be isolated through a certain peripheral channel. The setting of the peripheral channel improves the inter-row While the heat removal effect of the air conditioner increases the floor area and cost input.

The third is to use the refrigeration cabinet door to replace the front and rear door panels of the cabinet in the machine room. The refrigeration cabinet door is divided into the refrigeration cabinet door using water-cooled heat exchanger and the refrigeration cabinet door using Freon heat pipe heat exchanger. Both methods can be realized In order to achieve the effect of being close to the heat source of the server and cooling nearby, because the water-cooled heat exchanger refrigeration cabinet door will have the disadvantage of introducing water into the machine room, so the use of Freon heat pipe heat exchanger refrigeration cabinet door is currently an ideal choice, but both methods require The heat exchanger is integrated on the door panel of the server cabinet. At this time, the increase in the weight of the door panel has higher requirements on the load bearing of the rack and the reliability of the door hinge.

Contents of the invention

The utility model combines the temperature control requirements of rack servers with high heat dissipation density in the computer room, adopts the idea of point-to-point airtight refrigeration, isolates the cabinet server with local hot spots from the ambient temperature in the computer room, and makes the server exhaust air through a certain air path design in the cabinet The high-temperature air in the channel is efficiently discharged through the heat exchanger, and then the low-temperature air cooled by the heat exchanger is directly discharged to the air inlet channel of the server. Such a cycle prevents local hot spots from affecting the ambient temperature in the computer room, and at the same time reduces the heat dissipation resistance of the server by cooling close to the heat source, and discharges the heat with low consumption and high efficiency.

The technical scheme that the utility model solves its technical problem adopts is:

An airtight heat removal cabinet, the heat removal cabinet is sealed as a whole, including a movable frame with a sealed top plate and a bottom plate, a sealed front door, a sealed right side panel, a sealed rear door, and a left heat exchange unit. The server is installed on the rack, and it is characterized in that: the left side heat exchange unit includes a sealed left side plate, an air duct partition, a heat exchanger, and an air duct partition assembly from the outside to the inside, and also includes sealing parts for sealing the front and rear sides. A sealed left front plate and a sealed left rear plate, and a cross-flow fan located at the left front or left rear of the left heat exchange unit. The airtight heat exhaust cabinet of the utility model is integrally sealed and isolated from the ambient temperature in the computer room, and is especially suitable for providing heat exhaust for rack servers with high heat dissipation density in the computer room.

Preferably, the heat exchanger includes a connection inlet pipe and a connection outlet pipe; the connection inlet pipe is connected to the interface of the cooled low-temperature working fluid outside the machine room. After the heat is evaporated, the heat is discharged from the machine room through the connecting outlet pipe.

Preferably, the heat exchange tubes of the heat exchanger are arranged vertically, and the fins are arranged horizontally.

Preferably, the air path partition assembly is located between the heat exchanger and the server, and seals and isolates the two; the area between the sealed front door and the server forms the air inlet channel of the server, so The area between the sealed rear door and the server constitutes an air outlet channel of the server.

Preferably, the air return port of the heat exchanger is aligned with the air exhaust channel of the server, and the air supply port of the heat exchanger is located near the depth direction of the heat exhaust cabinet that is not blocked by the air path partition. The location of the cross-flow fan. Specifically, the high-temperature air in the air outlet channel of the server passes through the heat exchanger along the depth direction of the heat-discharging cabinet to discharge heat, and the low-temperature air cooled by the heat exchanger passes through the through-flow The fan is directly led to the air inlet channel of the server.

Preferably, the left heat exchange unit further includes a controller.

Preferably, the heat removal cabinet further includes a sensor for measuring the return air temperature of the heat exchanger.

Preferably, the sensor is connected in communication with the controller, and the controller controls the start and stop of the left heat exchange unit according to the return air temperature of the heat exchanger detected by the sensor. Specifically, when the return air temperature of the heat exchanger detected by the controller is higher than the set temperature, the left heat exchange unit starts cooling, and when the controller detects that the heat exchanger When the return air temperature is lower than the set temperature, the left heat exchange unit stops cooling.

Preferably, the working fluid used in the heat exchanger is any one of water, ethylene glycol, fluorine-containing refrigerants, and fluorine-free refrigerants.

It can be seen from the above technical solutions that this utility model combines the temperature control requirements of rack servers with high heat dissipation density in the computer room, adopts the idea of point-to-point airtight refrigeration, isolates the cabinet servers with local hot spots from the ambient temperature in the computer room, and passes through a certain air path in the cabinet Designed so that the high-temperature air in the server exhaust channel is efficiently discharged through the heat exchanger, and then the low-temperature air cooled by the heat exchanger is directly discharged to the server air inlet channel. Such a cycle prevents local hot spots from affecting the ambient temperature in the computer room, and at the same time reduces the heat dissipation resistance of the server by cooling close to the heat source, and discharges the heat with low consumption and high efficiency.

Description of drawings

Fig. 1 is a structural schematic diagram of the airtight heat exhaust cabinet of the present invention.

Fig. 2 is a schematic diagram of the flow structure of air and working medium in the airtight heat exhaust cabinet of the present invention.

Detailed ways

In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings and examples.

Fig. 1 is a structural schematic diagram of the airtight heat exhaust cabinet of the present invention. The airtight heat exhausting cabinet of the utility model includes a movable frame 1 with a sealed top plate and a bottom plate, a sealed front door 2 , a sealed right side plate 3 , a sealed rear door 4 , and a left heat exchange unit 5 . Among them, the left heat exchange unit 5 is composed of a sealed left rear panel 6, a sealed left panel 7, an air passage partition 8, a heat exchanger 9, an air passage partition assembly 10, a cross-flow fan 11, a controller 12, and a sealed left front The heat exchanger 9 includes a connection inlet pipe 14 and a connection outlet pipe 15; a movable rack 1 with a sealed top plate and a bottom plate is equipped with a server 16; the connection inlet pipe 14 is connected to the cooled low-temperature working medium outside the machine room Interface connection, after introducing the low-temperature working medium, the low-temperature working medium absorbs the exhaust heat of the server in the cabinet and evaporates, and then discharges the heat from the connection outlet pipe 15 out of the machine room.

Fig. 2 is a schematic diagram of the flow structure of air and working medium in the airtight heat exhaust cabinet of the present invention. The heat exhausting cabinet is sealed as a whole and isolated from the ambient temperature in the machine room; the air duct partition assembly 10 not only seals the heat exchanger 9 close to the side of the server 16, but also separates the area between the sealed front door 2 and the server 16 through the air flow. The air inlet passage of the server 16 is formed by the road isolation, and the air outlet passage of the server 16 is formed by separating the area between the sealed rear door 4 and the server 16 through the air passage. The air return port of the heat exchanger 9 is aligned with the air exhaust channel of the server 16, and the air supply port of the heat exchanger 9 is located at a position close to the cross-flow fan 11 that is not blocked by the air path partition plate 8 along the depth direction of the heat exhaust cabinet; the server 16 The high-temperature air in the exhaust outlet passage of the heat exhaust cabinet passes through the heat exchanger 9 along the depth direction to discharge heat, and the low-temperature air cooled by the heat exchanger 9 is directly led to the air inlet passage of the server 16 through the cross-flow fan 11. The direction of air in the heat exhaust cabinet is shown in the direction of arrow A in FIG. 2 , and the flow direction of the working fluid is shown in the direction of arrow B in FIG. 2 .

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. within the spirit and principles of the present utility model shall include Within the protection scope of the utility model.

Claims (8)

1. an airtight heat extraction rack, described heat extraction rack integral sealing, comprise the movable frames (1) with sealing top board and base plate, sealing Qianmen (2), sealing right plate (3), sealing back door (4), left side heat exchange unit (5), server (16) is housed on described movable frames (1), it is characterized in that:

Described left side heat exchange unit (5) ecto-entad comprises sealing left plate (7), wind path dividing plate (8), heat exchanger (9), wind path baffle assembly (10) successively, also comprise sealing left ahead board (13) and sealing left back board (6) in order to both sides before and after sealing, and the cross flow fan (11) that is positioned at described left side heat exchange unit (5) front left side or left rear side.

2. a kind of airtight heat extraction rack according to claim 1, is characterized in that, comprises on described heat exchanger (9) and connect inlet pipe (14), connects pipe (15); Described connection inlet pipe (14) and machine room are outer to be connected through overcooled cryogenic fluid interface, after introducing cryogenic fluid, after cryogenic fluid absorbs the server heat extraction and evaporates in rack, heat is connected pipe (15) discharge machine room by described.

3. a kind of airtight heat extraction rack according to claim 1, is characterized in that, the heat exchanger tube of described heat exchanger (9) is vertically arranged, the fin horizontal arrangement.

4. a kind of airtight heat extraction rack according to claim 1, is characterized in that, described wind path baffle assembly (10) is positioned between described heat exchanger (9) and server (16), and by the two seal isolation; Zone between described sealing Qianmen (2) and described server (16) forms the air inlet passage of described server (16), and the zone between described sealing back door (4) and described server (16) forms the air exit channel of described server (16).

5. a kind of airtight heat extraction rack according to claim 4, it is characterized in that, the return air inlet of described heat exchanger (9) is aimed at the air exit channel of described server (16), and the air outlet of described heat exchanger (9) is positioned at the position of the close described cross flow fan (11) do not blocked by described wind path dividing plate (8) along described heat extraction rack depth direction.

6. according to the described a kind of airtight heat extraction rack of claim 1 to 5 any one, it is characterized in that, described left side heat exchange unit (5) also comprises controller (12).

7. a kind of airtight heat extraction rack according to claim 6, is characterized in that, described heat extraction rack further comprises for measuring the transducer of described heat exchanger (9) return air temperature.

8. a kind of airtight heat extraction rack according to claim 7, it is characterized in that, described transducer carries out communication with described controller (12) and is connected, and the return air temperature of the described heat exchanger (9) that described controller (12) detects according to described transducer is controlled the start and stop of described left side heat exchange unit (5).

Images