JP5210256B2 - Intake / exhaust structure of heat-generating equipment storage rack and data center - Google Patents

Description

  TECHNICAL FIELD The present invention relates to an intake / exhaust structure and a data center of a heating device housing rack that stacks and stores heating devices such as servers in the vertical direction, and in particular, a low heating device is included in the heating device housed in the heating device housing rack. Even if it is included, the temperature of the air exhausted from the heat generating equipment housing rack can be prevented from being lowered, and the heat generating equipment housing rack intake / exhaust structure and data center capable of efficient heat recovery are provided. is there.

  Heating devices that are heating elements, for example, electronic devices such as servers, are housed in multiple stages in a heat-generating device housing rack such as a server rack and are arranged in an air-conditioned room. In electronic devices such as servers, heat is generated as power is consumed. To eliminate the adverse effects of this heat, air conditioning air (cold air) is generated in the heat generating equipment contained in the heat generating equipment storage rack by a cooling system such as an air conditioner. In general, the heat generated by the heat generating device is removed.

  As conventional data centers, in Patent Document 1 and Patent Document 2, servers and the like having fans for intake and exhaust are stacked in a plurality of stages and housed in a server rack, and the server racks are the same in a straight line. By arranging the rack rows by arranging them in the direction, the two rack rows are arranged so as to face each other, and one rack module can be constituted by closing between the two rack rows. Proposed.

  Patent Document 1 is characterized in that a hot area is formed between rack rows by arranging two rows of rack rows with the rear side being the exhaust side facing each other.

  Further, Patent Document 2 is characterized in that a cool area is formed between rack rows by arranging two rows of rack rows with the front side being the intake side facing each other.

  In this way, the data center distinguishes conditioned air (cold air) from the air conditioner and hot air discharged from the rear surface of the server rack.

JP 2006-526205 A JP 2007-316989 A Japanese Utility Model Publication No. 63-159895 JP 2006-140343 A Special table 2007-502027 gazette

  In recent years, energy-saving technology such as heat reuse is prosperous, and in the meantime, the present inventors have developed a technology for recovering heat from the rear surface of the server rack and using it for boilers and the like.

  However, the exhaust temperature of a specific server, for example, when servers with different heating values are housed in one server rack, or when the exhaust capacity of the fans in the server is too high and the air circulation in the server is good May be low. If even one server with such a low exhaust temperature is accommodated in the server rack, the exhaust temperature of the entire server rack will drop, and it will not be possible to efficiently recover heat. Arise.

  Therefore, in order to solve this problem, as described in Patent Document 3, servers with low exhaust temperatures are arranged in series, and the exhaust of the server arranged on the upstream side is supplied to the downstream server. Thus, it is conceivable that the exhaust from the server arranged on the upstream side is further heated and exhausted by the server on the downstream side, and the exhaust temperature in the entire server rack is kept high.

  However, in this case, sufficient cold air cannot be supplied to the server located on the downstream side far from the intake port for sucking cold air, and there is a possibility that the heat radiation of the downstream server itself becomes insufficient. In addition, if the server located on the upstream side near the intake port fails, the server located on the upstream side may be in the way, and it is possible that sufficient cold air cannot be supplied to the server located on the downstream side far from the intake port. It is a problem.

  The present invention has been made in view of the above circumstances, and in a heat-generating device accommodation rack capable of accommodating a plurality of heat-generating devices, cold air can be appropriately supplied to the plurality of heat-generating devices and the air is exhausted from the heat-generating device housing rack. It is an object of the present invention to provide an intake / exhaust structure and a data center for a heat-generating equipment housing rack that can realize efficient heat recovery by preventing the temperature of the air from being lowered.

  The present invention was devised to achieve the above object, and has a fan for performing intake and exhaust, and a plurality of heat generating devices that intake air from the front side and exhaust air from the rear side are stacked in the vertical direction. In the intake / exhaust structure of the heat-generating device storage rack, the plurality of heat-generating devices are composed of a low heat-generating device whose exhaust temperature is lower than a predetermined temperature and a normal heat-generating device whose exhaust temperature is higher than a predetermined temperature, A low heat generating device area formed by stacking the low heat generating devices is formed below the rack, the normal heat generating device is stacked above the low heat generating devices, and both the heat generating devices are accommodated in the heat generating devices. The front side of the rack is the intake side, the rear side is the exhaust side, and the intake side and the exhaust side are aligned, and the heat-generating equipment storage rack is designed so that the front side corresponds to the two heat-generating equipment in the vertical direction. The exhaust of the low heat generating device is exhausted between the lower side of the normal heat generating device immediately above the low heat generating device area and the lower portion of the heat generating device containing rack on the rear surface side of the heat generating device containing rack. This is an intake / exhaust structure of a heat-generating device accommodation rack provided with a rear partition for preventing direct exhaust to the rear, and the rear surface can be exhausted only above the rear partition.

  A warm air accommodating space in which the two heat generating devices are not arranged is formed below the low heat generating device area in the heat generating device accommodating rack, and exhaust gas having a low temperature from the low heat generating device is introduced into the warm air accommodating space. May be.

  Below the front side of the heat generating device housing rack, the exhaust of the low heat generating device introduced into the warm air housing space is between the lower side of the low heat generating device area and the lower portion of the heat generating device containing rack. You may provide the front partition part for preventing flowing out from the front of a storage rack ahead.

  Further, the present invention provides a rack row by arranging a plurality of heating device housing racks having an intake / exhaust structure of the heating device housing rack in the left-right direction, and the rear surfaces of the rack rows face each other at intervals. A panel arranged on the floor surface of the air conditioning room and extending from the lower edge of the rack row to the ceiling of the air conditioning room is provided at one end in the left-right direction of the facing rack row, and the other end portion is Closed by the wall of the air conditioning room, and provided with a partition extending to the ceiling at the upper front edge of both rack rows, partitioning the hot area surrounded by the rack row in the air conditioning room, on the ceiling in the hot area, A data center that forms a collection port for collecting hot air in the hot area and introduces conditioned air in the air-conditioned room from the front to the rear of the rack row into the hot area.

  Further, according to the present invention, a plurality of heating device housing racks having an intake / exhaust structure of the heating device housing rack are arranged in the left-right direction to form a rack row, and the front sides of the rack row are faced to each other with a gap therebetween. A panel arranged on the floor surface of the air conditioning room and extending from the lower edge of the rack row to the ceiling of the air conditioning room is provided at one end in the left-right direction of the facing rack row, and the other end portion is Closed by the walls of the air conditioning room, and provided with a partition extending to the ceiling at the upper front edge of both rack rows, partitioning the cool area surrounded by the rack row in the air conditioning room, on the ceiling in the cool area, A supply port for supplying conditioned air from the air conditioner is formed, and a recovery port for collecting hot air is formed on the ceiling of the hot area other than the cool area, and the conditioned air is fed from the front to the rear of the rack row. A data center which is adapted to introduce into the hot area through.

  According to the present invention, it is possible to appropriately supply cool air to a plurality of heat generating devices, and to prevent the temperature of the air exhausted from the heat generating device accommodation rack from being lowered, thereby generating heat that can realize efficient heat recovery. It is possible to provide an intake / exhaust structure and a data center for an equipment rack.

It is a top view of the data center which concerns on one embodiment of this invention. It is a front view of the rack group arrange | positioned in the data center of FIG. FIG. 3 is an explanatory diagram illustrating air flow (intake and exhaust states) in the server rack of the rack group in FIG. 2. It is explanatory drawing explaining the air flow (state of intake / exhaust) of the low heat-generating apparatus area in the server rack of the rack group of FIG.

  Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

  FIG. 1 is a plan view of the data center according to the present embodiment.

  As shown in FIG. 1, the data center 1 is configured by arranging four rack groups 3 in an air conditioning room 2. Although the door for entering / exiting the air-conditioning room 2 is provided in the air-conditioning room 2, it is abbreviate | omitting in FIG.

  The rack group 3 includes a plurality of server racks 4 as heat generating equipment housing racks arranged in a straight line in the left-right direction to form a rack row 5, and the rear surfaces of the two rows of rack rows 5 face each other with an interval between them ( A panel (side wall) 6 is provided at one end in the left-right direction of the rack row 5 which is arranged on the floor surface in the air conditioning room 2 and is opposed to the other side. Is closed by the wall W of the air conditioning chamber 2.

  When the height of the server rack 4 does not reach the ceiling of the air conditioning room 2, as shown in FIG. 2, the panel 6 extends to the ceiling R and closes between the ceiling R and the server rack 4. Member) 7 is provided. The partition 7 is formed so as to extend from the upper front edge of the rack row 5 to the ceiling R, and may be appropriately divided.

  By forming the rack group 3, the hot area H surrounded by the rack row 5 is partitioned in the air conditioning chamber 2. A panel (not shown) for entering and exiting the hot area H is formed on the panel 6 provided at the end of the rack row 5.

  A plurality of collection ports (not shown) for collecting hot air in the hot area H are formed in the ceiling R in the hot area H, and the ceiling R in the cool area C, which is the air conditioning room 2 other than the hot area H, A plurality of supply ports (not shown) to which conditioned air (cold air) from an air conditioner (not shown) is supplied are formed. A duct connected to each of the supply port and the recovery port is provided on the ceiling R, and the conditioned air in the air conditioning chamber 2 is introduced from the front surface to the rear surface of the rack row 5 into the hot area H. ing. The hot air recovered from the recovery port is supplied to, for example, a boiler through a duct connected to the recovery port.

  In this specification, an area to which conditioned air (cold air) from an air conditioner is supplied is referred to as a cool area C, and an area from which hot air from the server rack 4 is exhausted is referred to as a hot area H. The temperature of the cool area C is about 10-25 ° C., and the temperature of the hot area H is about 25-40 ° C.

  Next, the intake / exhaust structure of the heat generating device accommodation rack according to the present embodiment will be described.

  As shown in FIG. 2, the server rack 4 as a heat generating device accommodation rack is formed in a rectangular parallelepiped box shape, and stores a plurality of servers A and B as heat generating devices stacked in the vertical direction.

  A front plate 4a that can be freely opened and closed is provided on the front side of the server rack 4, and a rear plate is provided on the rear side, similar to the front side, although not shown. The front plate and the rear plate are formed in a mesh shape.

  As shown in the center part of FIG. 2, four support columns 20 are arranged inside the server rack 4, such as two on the front side and two on the rear side, and two on the front side. A plurality of cross beams 21 are provided between the support columns 20 and between the two support columns 20 on the rear side, and the servers A and B are mounted on the cross beam 21. Has been. In the present embodiment, all the server racks 4 have the same internal structure, but some of the server racks 4 may have the same internal structure.

  Both ends of the cross beam 21 are fixed to the column 20 with bolts 22, and holes (not shown) that are screwed with the bolts 22 are formed in the column 20 in stages. The mounting position can be adjusted in the vertical direction according to the height of the servers A and B to be placed.

  The servers A and B housed in the server rack 4 have a fan (not shown) for performing intake and exhaust, and intake air from the front side and exhaust air from the rear side. The servers A and B are arranged in the server rack 4 so that the intake side and the exhaust side are aligned with the front side of the server rack 4 as the intake side and the rear side as the exhaust side.

  In the server rack 4, a server A which is a low heat generating device whose exhaust temperature is lower than a predetermined temperature and a server B which is a normal heat generating device whose exhaust temperature is higher than the predetermined temperature are stored.

  Server A is a server where warm air (air of about 25 to 32 ° C.) is exhausted, and server B is a server where hot air (air of about 32 to 40 ° C.) is exhausted. Here, the case where two types of servers A and B are used will be described for the sake of convenience. However, this does not mean that there are two types of server models, and the servers A and B include servers of a plurality of types. May be.

  In the present embodiment, a case where three servers A1 to A3 and four servers B1 to B4 are accommodated in the server rack 4 will be described.

  As shown in FIGS. 2 and 3, in the server rack 4, a server A1, a server A2, a server A3, a server B1, a server B2, a server B3, and a server B4 are sequentially arranged from the bottom to the top. An area in which the servers A1 to A3 arranged below the server rack 4 are stacked is referred to as a low heat generating device area 31.

  A warm air accommodation space 32 in which the servers A and B are not disposed is formed below the server A1 disposed at the lowest position, that is, below the low heat generating device area 31.

  In the intake / exhaust structure 100 of the heat generating device accommodation rack according to the present embodiment, a low heat generating device is provided between the lower side of the server B1 immediately above the low heat generating device area 31 and the lower portion of the server rack 4 on the rear surface side of the server rack 4. A rear partition 33 is provided to prevent the exhaust of the servers A1 to A3 from being exhausted directly to the rear of the server rack 4. As a result, on the rear surface side of the server rack 4, exhaust can be performed only above the rear partition portion 33.

  The rear partition 33 has its upper end installed at the bottom of the servers B1 to B4 from the top surface of the server A3 disposed at the top of the servers A1 to A3 (the position indicated by the broken line a in FIG. 3). It is desirable to form between the lower surfaces of the server B1 (positions indicated by broken lines b in FIG. 3).

  Further, below the front side of the server rack 4, the exhaust of the servers A <b> 1 to A <b> 3 introduced into the warm air storage space 32 is between the lower side of the low heat generating device area 31 and the lower side of the server rack 4. A front partition 34 is provided to prevent the fluid from flowing forward. The front partition 34 is provided so as to block the front side of the portion where the servers A and B below the server rack 4 are not disposed. Thereby, on the front side of the server rack 4, exhaust can be performed only above the front partition 34, but the servers A and B are all arranged above the warm air accommodation space 32, and therefore on the front side of the server rack 4. Thus, the intake can be performed so as to correspond to the servers A and B in the vertical direction.

  The flow of air in the server rack 4 will be described with reference to FIGS.

  As shown in FIGS. 3 and 4, the exhaust from the servers A <b> 1 to A <b> 3, which are low heat generating devices, collides with the rear side partition 33 on the rear side of the server rack 4. The exhaust from the servers A <b> 1 to A <b> 3 is not hot air but warm air and has a high specific gravity, so it flows downward and is introduced into the warm air accommodation space 32.

  As shown by an arrow 41 in FIG. 4, the warm air introduced into the warm air accommodating space 32 is guided forward in the server rack 4 so as to be pushed out, and further collided with the front partition 34 and guided upward. Then, the air is again sucked into the servers A1 to A3. That is, the servers A1 to A3 take in the conditioned air supplied from the front side of the server rack 4 and the warm air from the warm air storage space 32 (exhaust from the servers A1 to A3).

  A part of the air exhausted from the servers A1 to A3 is guided to the front of the servers A1 to A3 through the space between the servers A1 and A2 and the space between the servers A2 and A3.

  When passing through the servers A1 to A3 a plurality of times, the exhaust from the servers A1 to A3 gradually increases in temperature and becomes hot even if it is a low heat generation device. Since the exhaust gas that has become hot air has a low specific gravity, it flows upward as indicated by an arrow 42 in FIG. 4 and is discharged from above the rear partition 33 to the rear of the server rack 4, that is, to the hot area H.

  As for the servers B1 to B4, air intake is performed mainly from the front side with the conditioned air, and hot air is exhausted from the rear side. However, the exhaust from the servers A1 to A3 is not completely sucked, and the exhaust from the servers A1 to A3 is also sucked to some extent.

  The operation of the present embodiment will be described.

  In the intake / exhaust structure 100 for a heat generating device accommodation rack according to the present embodiment, a low heat generating device area 31 formed by stacking servers A1 to A3, which are low heat generating devices, is formed below the server rack 4 to form a server rack. 4 can be inhaled so as to correspond to the servers A and B in the vertical direction, and the lower side of the server B1 directly above the low heat generating device area 31 and the lower side of the server rack 4 on the rear side of the server rack 4 In the meantime, a rear partition 33 is provided to prevent the exhaust of the servers A1 to A3 from being exhausted directly to the rear of the server rack 4.

  In other words, in the intake / exhaust structure 100 of the heat generating device accommodation rack according to the present embodiment, the low-exhaust air from the servers A1 to A3, which are low heat generating devices, is not exhausted directly to the hot area H but reused. It is used again for cooling the servers A1 to A3, and is introduced into the hot area H after the exhaust temperature becomes high.

  Even if the servers A1 to A3, which are low heat generation devices having a low exhaust temperature, are housed in the server rack 4 by not discharging the air having a low exhaust temperature as it is, the temperature of the air exhausted from the server rack 4 It becomes possible not to lower the (exhaust temperature), and efficient heat recovery can be realized.

  Further, in the present embodiment, servers A and B, which are heat generating devices, are stacked and accommodated in the vertical direction, and the front side of the server rack 4 can be sucked so as to correspond to the servers A and B in the vertical direction. Therefore, the conditioned air can be appropriately supplied to the servers A and B, and the heat radiation of the servers A and B does not become insufficient.

  In the present embodiment, a warm air accommodation space 32 in which the servers A and B are not arranged is formed below the low heat generating device area 31 in the server rack 4.

  As a result, air having a low exhaust temperature can be accumulated in the warm air accommodating space 32 formed in the lower part of the server rack 4, and the air having a low exhaust temperature accumulates in the lower part of the server rack 4, so that the rear partition 33. Can be prevented from overcoming.

  Further, in the present embodiment, a front partition 34 is provided below the front side of the server rack 4 and between the lower side of the low heat generating device area 31 and the lower part of the server rack 4. The exhaust of the introduced servers A1 to A3 can be prevented from flowing out from the front surface of the server rack 4 to the cool area C in front.

  In the above embodiment, the servers A and B are described as the heat generating devices, but other heat generating devices such as a switching hub and a power supply device may be used.

  In the above embodiment, the case where a plurality of low heat generating devices (server A) is provided in one server rack 4 has been described, but only one may be provided.

  Furthermore, although the data center 1 of the type that forms the hot area H between the rack rows 5 has been described in the above embodiment, the data center of the type that forms the cool area C between the rack rows 5 may be used.

  In this case, the front side of the rack row 5 faces each other at an interval to form the rack group 3, and the cool area C surrounded by the rack row 5 is partitioned in the air conditioning room 2. In addition, a supply port for supplying conditioned air from the air conditioner may be formed in the ceiling R, and a recovery port for collecting hot air may be formed in the ceiling R of the hot area H other than the cool area C.

  As described above, the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the present invention.

1 Data center 2 Air conditioning room 3 Rack group 4 Server rack
5 Rack row 6 Panel 7 Partition 20 Strut 21 Cross girder 22 Bolt 31 Low heat generation equipment area 32 Warm air storage space 33 Rear partition 34 Front partition A Server (low heat generation equipment)
B server (normally heat generating equipment)
100 Intake / exhaust structure of heat generating equipment storage rack

Claims (5)

In the intake / exhaust structure of a heat generating equipment housing rack that has a fan for performing intake and exhaust, and stacks and stores a plurality of heat generating equipment that sucks in from the front side and exhausts from the rear side in the vertical direction,
The plurality of heat generating devices includes a low heat generating device whose exhaust temperature is a predetermined temperature or less and a normal heat generating device whose exhaust temperature is higher than a predetermined temperature,
A low heat generating device area is formed by laminating the low heat generating device below the heat generating device containing rack, the normal heat generating device is stacked above the low heat generating device, and both heat generating devices are The front side of the heat generating equipment storage rack is the intake side, the rear side is the exhaust side, and the intake side and the exhaust side are aligned,
The heat generating device accommodation rack can be sucked so that the front side thereof corresponds to the both heat generating devices in the vertical direction, and the lower side of the normal heat generating device directly above the low heat generating device area and the rear side A rear partition is provided between the lower part of the heat generating equipment housing racks to prevent the exhaust of the low heat generating equipment from being exhausted directly to the rear of the heat generating equipment housing rack, and the rear side is only above the rear partition. An intake / exhaust structure for a heat-generating equipment storage rack, characterized in that exhaust is possible.   A warm air accommodating space in which the two heat generating devices are not arranged is formed below the low heat generating device area in the heat generating device accommodating rack, and exhaust gas having a low temperature from the low heat generating device is introduced into the warm air accommodating space. The intake / exhaust structure for a heat-generating equipment storage rack according to claim 1.   Below the front side of the heat generating device housing rack, the exhaust of the low heat generating device introduced into the warm air housing space is between the lower side of the low heat generating device area and the lower portion of the heat generating device containing rack. The intake / exhaust structure for a heat-generating equipment storage rack according to claim 2, further comprising a front partition for preventing the front rack from flowing forward.   A plurality of heating device housing racks having the air intake / exhaust structure of the heating device housing rack according to any one of claims 1 to 3 are arranged in the left-right direction to form a rack row, and the rear surfaces of the rack rows are spaced apart from each other. A panel is arranged on the floor surface of the air conditioning room facing each other, and a panel extending from the lower edge of the rack row to the ceiling of the air conditioning room is provided at one end in the left-right direction of the facing rack row, and the other end A partition extending to the ceiling above the front edge of both rack rows, and partitioning a hot area surrounded by the rack rows in the air conditioning chamber, A recovery port for recovering hot air in the hot area is formed in the ceiling, and air-conditioned air in the air-conditioned room is introduced from the front to the rear of the rack row into the hot area. Data center to be.   A plurality of heating device housing racks having the air intake and exhaust structure of the heating device housing rack according to any one of claims 1 to 3 are arranged in the left-right direction to form a rack row, and the front sides of the rack rows are spaced apart from each other. A panel is arranged on the floor surface of the air conditioning room facing each other, and a panel extending from the lower edge of the rack row to the ceiling of the air conditioning room is provided at one end in the left-right direction of the facing rack row, and the other end A partition extending to the ceiling at the top of the front edge of both rack rows, partitioning a cool area surrounded by the rack rows in the air conditioning chamber, A supply port for supplying conditioned air from the air conditioner is formed in the ceiling, and a recovery port for collecting hot air is formed in the ceiling of the hot area other than the cool area. Data center, characterized in that so as to introduce into the hot area through the rear surface.

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