JP2011081719A - Data center - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a data center for efficiently recovering heat from a hot area. <P>SOLUTION: A rack group 3 includes heating device storage racks different in the amount of discharged hot air. Each heating device storage rack 4 comprises first heating device storage racks L and second heating device storage racks S for discharging less hot air than the first heating device storage racks L. The first heating device storage racks L are distributed for a plurality of recovery ports 8 of a heat recovery duct 9 and are disposed near each of the recovery ports 8, and the second heating device storage racks S are spaced from each of the recovery ports 8. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a data center capable of efficiently recovering heat from a hot area.

  A heat generating device as a heat generating element, for example, an electronic device such as a server, is accommodated in a heat generating device accommodating rack such as a server rack in multiple stages and arranged in an air conditioned room. In electronic devices such as servers, heat is generated as power is consumed. In order to eliminate the adverse effects of this heat, air conditioning (cold air) is applied to the heat generating equipment housed 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 a conventional data center, 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 accommodated in a server rack, and the server racks are the same in a straight line. A rack row is configured by arranging in a direction, and two rack rows are arranged to face each other, and one rack module is configured by closing the space 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, in Patent Document 2, two rack rows are arranged so that the front side, which is the intake side, is opposed to each other, thereby forming a cool area between the rack rows and using a region other than the cool area as a hot area. Is characteristic.

  Technologies such as Patent Documents 1 and 2 form a region called a hot area, and the hot air in the hot area can be recovered by a heat recovery duct and used in a boiler or the like, which is effective in terms of energy saving. It is.

JP 2006-526205 A JP 2007-316989 A

  By the way, heat generating devices such as servers include those with large displacement and those with small displacement. Along with this, even when considering the entire heating equipment housing rack for housing the heating equipment, the amount of exhaust is inevitably present.

  Meanwhile, when arranging the heat generating equipment storage racks to form a rack row, if a heat generating equipment storage rack with a small displacement is arranged in the vicinity of the recovery port of the heat recovery duct, the effect of pushing up hot air to the recovery port of the heat recovery duct However, there was room for improvement in terms of heat recovery efficiency.

  The present invention has been made in view of the above circumstances, and provides a data center capable of efficiently recovering heat from a hot area in a rack group in which heat-generating equipment accommodating racks having large and small displacements exist. The purpose is to do.

  The present invention was devised to achieve the above object, and a plurality of heat generating devices having fans for performing intake and exhaust are stacked in the vertical direction with the front side as the intake side and the rear side as the exhaust side. The racks are formed by arranging a plurality of the racks containing the heat generating devices in the left-right direction, and the rear surfaces of the rack rows face each other at an interval to form a group of racks for air conditioning. A plurality of units arranged on a floor surface in the room, partitioning a hot area surrounded by the rack row in the air conditioning room, and collecting hot air in the hot area in a heat recovery duct on a ceiling in the hot area In the data center in which the conditioned air in the air conditioned room is introduced from the front to the rear of the rack row into the hot area, the rack group has a hot air exhaust amount. The heat generating device accommodating racks are mixed, and the heat generating device accommodating rack includes a first heat generating device accommodating rack and a second heat generating device accommodating with a smaller amount of hot air than the first heat generating device accommodating rack. And the first heat generating device accommodating rack is distributed for each of the plurality of recovery ports of the heat recovery duct, and the first heat generating device accommodating rack is disposed in the vicinity of each of the recovery ports. And a data center in which the second heat generating device accommodation rack is arranged at a position away from each of the collection ports.

  The present invention also includes a plurality of heat generating devices having fans for performing intake and exhaust, which are stacked in the vertical direction with the front side as the intake side and the rear side as the exhaust side, and are stored in the heat generation device storage rack. A plurality of equipment housing racks are arranged in the left-right direction to form a rack row, and the front sides of the rack rows face each other at an interval to form a group of racks that are arranged on the floor surface in the air conditioning room. A cool area surrounded by the rack row is partitioned in the room, a supply port for supplying conditioned air from the air conditioner is formed on the ceiling in the cool area, and on the ceiling of the hot area other than the cool area, In a data center in which a recovery port for recovering hot air in the hot area is formed in a heat recovery duct, and the conditioned air is introduced into the hot area from the front to the rear of the rack row. In the rack group, the heat generating device accommodation racks having different hot air displacements are mixed, and the heat generating device accommodation rack has a first heat generating device accommodation rack and a heat generating device containing rack that is hotter than the first heat generating device accommodation rack. The first heat generating device housing rack is configured to have a small displacement, and the first heat generating device housing rack is dispersed for each of the plurality of recovery ports of the heat recovery duct, and the first heat generating device storage rack is disposed near each of the recovery ports. The heat generating device accommodation rack is arranged, and the second heat producing device accommodation rack is arranged at a position away from each recovery port.

  In the rack group, a panel extending from the lower edge of the rack row to the ceiling of the air conditioning room is provided at one end portion in the left-right direction of the both rack rows constituting the rack group, and the other end portion is disposed on the air conditioner. It is preferable to provide a partition that is closed by the walls of the chamber and that extends to the top of the front edge of both rack rows.

  Among the heat generating equipment housing racks that constitute the rack group, the one with the largest hot air exhaust capacity is 1, and the hot air exhaust capacity is 0.7 or less when the exhaust air capacity is 0.7 or less. A rack having a hot air exhaust amount exceeding 0.7 may be used as the first heat generating device accommodation rack.

  It is preferable that the heat generating device accommodation rack constituting the rack group has a higher ratio of the second heat generating device accommodation rack than the first heat generating device accommodation rack.

  The second heat generating device accommodation rack can be sucked in the vertical direction of the front surface and can be exhausted in the vertical direction of the rear surface of the plurality of heat generating devices accommodated in the second heat generating device accommodation rack. At least one of them is a low heat generating device whose exhaust temperature is a predetermined temperature or less, and the second heat generating device accommodation rack accommodates the exhaust from the low heat generating device into the low heat generating device. You may have the intake / exhaust structure which provided the induction | guidance | derivation member which guide | induces to the front side of another heat generating apparatus within a rack, and supplies to the said other heat generating apparatus.

  The induction member is provided so as to protrude to the exhaust side of the low heat generating device, and a warm air receiving box that receives the exhaust of the low heat generating device, and exhaust air from the warm air receiving box to the front side of the other heat generating device It may consist of a guiding pipe to be guided.

  A plurality of the low heat generating devices are disposed in the second heat generating device housing rack, and a normal heat generating device in which the exhaust temperature exhausted from the rear side is higher than a predetermined temperature is disposed above the lower heat generating device. The exhaust of the low heat generating device is sequentially guided to the front of the low heat generating device above by the turning pipe, and the exhaust of the top low heat generating device is guided to the front of the normal heat generating device by the rotating pipe. You may do it.

  A plurality of the low heat generating devices are disposed in the second heat generating device accommodation rack, and a normal heat generating device in which the exhaust temperature exhausted from the rear side is higher than a predetermined temperature is disposed above the low heat generating devices. The rotation pipes of the low heat generating devices may be combined to guide the exhaust of each of the low heat generating devices to the front of the upper normal heat generating device.

  In the second heat generating equipment housing rack, the low heat generating equipment and the normal heat generating equipment in which the exhaust temperature exhausted from the rear side is higher than a predetermined temperature are alternately stacked, and the low heat generating equipment is exhausted. The turning pipe may be guided to the front of the normal heat generating device thereabove.

  The plurality of heat generating devices housed in the second heat generating device housing rack include 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 the predetermined temperature, and the second heat generating device. A low heat generating device area is formed by laminating the low heat generating devices below the housing rack, and the normal heat generating device is stacked above the low heat generating devices, and the second heat generating device containing rack is: The front side can be inhaled so as to correspond to both the heat generating devices in the vertical direction, and the lower surface side of the normal heat generating device directly above the low heat generating device area and the lower portion of the heat generating device containing rack on the rear surface side. In the middle, a rear partition is provided to prevent the exhaust of the low heat generating device from being exhausted directly to the rear of the second heat generating device storage rack, and the rear side can be exhausted only above the rear partition. It may have the intake and exhaust structure, which is a.

  A warm air accommodating space in which the two heat generating devices are not disposed is formed below the low heat generating device area in the second 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. You may make it do.

  Below the front side of the second heat generating device accommodation rack, the exhaust of the low heat generating device introduced into the warm air containing 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 ahead from the front surface of the said 2nd heat generating apparatus accommodation rack.

  ADVANTAGE OF THE INVENTION According to this invention, the data center which can perform the heat recovery from a hot area efficiently can be provided.

It is a top view of the data center which concerns on one embodiment of this invention. It is a top view explaining arrangement | positioning of the heat recovery duct and recovery port in the data center of FIG. It is a figure explaining the flow of the hot air in the hot area in the data center of FIG. It is a figure explaining the flow of the hot air in the hot area in the data center of FIG. It is a front view of the rack group arrange | positioned in the data center of FIG. 1, and is a figure explaining an example of the intake / exhaust structure of the 2nd server rack. It is explanatory drawing explaining the flow (state of intake / exhaust) of the air in the 2nd server rack which has the intake / exhaust structure of FIG. (A) is explanatory drawing explaining a mode that an induction | guidance | derivation member is mounted | worn with a server, (b) is explanatory drawing explaining the flow of the air in a server. It is a front view of the rack group arrange | positioned in the data center of FIG. 1, and is a figure explaining an example of the intake / exhaust structure of the 2nd server rack. It is explanatory drawing explaining the flow (state of intake / exhaust) of the air in the 2nd server rack which has the intake / exhaust structure of FIG. It is a front view of the rack group arrange | positioned in the data center of FIG. 1, and is a figure explaining an example of the intake / exhaust structure of the 2nd server rack. It is explanatory drawing explaining the flow (state of intake / exhaust) of the air in the 2nd server rack which has the intake / exhaust structure of FIG. It is a front view of the rack group arrange | positioned in the data center of FIG. 1, and is a figure explaining an example of the intake / exhaust structure of the 2nd server rack. It is explanatory drawing explaining the flow (state of intake / exhaust) of the air in the 2nd server rack which has the intake / exhaust structure of FIG. It is explanatory drawing explaining the air flow (state of intake / exhaust) in the low heat-generating apparatus area of the 2nd server rack which has the intake / exhaust structure 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, the panel 6 is extended to the ceiling R, and a partition (upper closing member) 7 is provided to close the space between the ceiling R and the server rack 4 (see FIG. 5). 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.

  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.

  As shown in FIG. 2, a plurality of collection ports 8 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 that 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. The recovery port 8 is provided with a heat recovery duct 9 connected to the recovery port 8 on the ceiling R, and the supply port is provided with an unillustrated conditioned air supply duct connected to the supply port on the ceiling R. The conditioned air in the air conditioning chamber 2 is introduced from the front surface of the rack row 5 to the rear surface and introduced into the hot area H. The hot air recovered from the recovery port 8 passes through a heat recovery duct 9 connected to the recovery port 8 and is supplied to, for example, a boiler. In the present embodiment, three recovery ports 8 are formed in each hot area H, and hot air in the hot area H is recovered on the wall w side of the hot area H.

  In the data center 1 according to the present embodiment, server racks 4 having different hot air displacements are mixed in the rack group 3.

  In the data center 1, the server rack 4 constituting the rack group 3 is divided into a first server rack L (L rack) and a second hot air exhaust amount smaller than that of the first server rack L due to the amount of exhaust. The first server rack L having a large hot air exhaust amount is dispersed for each of the plurality of recovery ports 8 of the heat recovery duct 9 and the first racks in the vicinity of the recovery ports 8 are divided into the server racks S (S racks). The server rack L is arranged, and the second server rack S is arranged at a position away from each collection port 8.

  In the present embodiment, when the exhaust amount of hot air is the largest among the server racks 4 constituting the rack group 3, the exhaust amount of hot air is 0.7 or less, preferably 0.5 or less. Is the second server rack S, and the one having a hot air displacement of 0.7, preferably more than 0.5, is the first server rack L. For example, the first server rack L may be used when the exhaust amount is larger than a predetermined threshold, and the second server rack S may be used when the exhaust amount is smaller than the predetermined threshold.

  Here, the case where the server rack 4 is divided into two groups (server racks L and S) according to the size of the exhaust gas will be described. The server racks 4 may be arranged collectively for each group so as to be sequentially reduced. Further, the server racks 4 may be arranged so that the exhaust amount becomes smaller as they move away from the recovery port 8 of the heat recovery duct 9 without being divided into groups.

  It is desirable that the ratio of the second server rack S to the server rack 4 constituting the rack group 3 is larger than that of the first server rack L. More specifically, it is desirable that the ratio of the first server rack L is about 1/3 of the whole.

  In the present embodiment, since the three collection ports 8a to 8c are formed in the hot area H, the first server rack L is placed in the rack row 5 at a position facing each other across the collection ports 8a to 8c. Place. The second server rack S is arranged in the rack row 5 between the first server racks L.

  As shown in the lower left of FIG. 2, in the data center 1, a recovery port 8c is formed at the position of the second row from the wall w side, a recovery port 8b is formed at the position of the fifth row, and a recovery port 8a is formed at the position of the eighth row. Therefore, the first server racks L are arranged in the second, fifth and eighth rows from the wall w side of the rack row 5, and the second server racks S are arranged in the other rows. . In this case, the rack group 3 includes a total of 18 server racks 4 including six first server racks L and twelve second server racks S, and the ratio of the first server racks L is as follows. 1/3.

As shown in FIG. 3, the hot air exhausted from the first server rack _L is exhausted to the area AL on the rear surface side of the first server rack L in the hot area H. Similarly, hot air exhausted from the second server rack S is discharged to the area A _S of the rear side of the second server racks S in hot area H. In this case, it would be arranged alternately in the hot area H and the area A _L and area A _S, the area A _L will be positioned immediately below the recovery port 8.

As shown in FIG. 4, hot air from the first server rack L discharged in the area A _L is recovered in the heat recovery duct 9 via the upper collecting port 8a~8c of the area A _L. Since the first server rack L is large exhaust amount, large positive impact of hot air, it is pushed along with also hot air around the area A _L.

Hot air from the second server rack S is second server rack S but small positive impact of hot air to the amount of exhaust is small, that is discharged to the area A _S is accompanied by hot air from the first server rack L And is recovered by the heat recovery duct 9 through the recovery ports 8a to 8c.

  That is, by arranging the first server rack L having a large displacement in the vicinity of the recovery ports 8a to 8c of the heat recovery duct 9, the second server can be obtained by the effect of pushing up the hot air from the first server rack L. Since the exhaust from the rack S is pushed up, the hot air can be effectively recovered in the heat recovery duct 9.

  As described above, according to the data center 1 according to the present embodiment, the first server rack L having a large displacement is arranged in the vicinity of the recovery ports 8a to 8c of the heat recovery duct 9, so that the hot area H It is possible to efficiently recover heat from the.

  Here, the server rack 4 (first server rack L, second server rack S) will be described.

  As shown in FIG. 5, the server rack 4 as a heat generating device storage 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, and the server rack 4 can suck air over the entire front surface in the vertical direction and exhaust air over the entire rear surface in the vertical direction. In the present embodiment, as described above, the intake range and exhaust range of the server rack 4 are “entirely in the vertical direction”, but “a position facing the servers A and B and in the vertical direction”. Surface ".

  As shown in the center part of FIG. 5, 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 FIG. 5, only the inside of the second server rack S is shown, but the same applies to the first server rack L. As described above, in the present embodiment, all the server racks 4 have the same internal structure. However, not all 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.

  Here, a description will be given of a case where server A, which is a low heat generating device whose exhaust temperature is lower than a predetermined temperature, and server B, which is a normal heat generating device whose exhaust temperature is higher than a predetermined temperature, are stored in the server rack 4.

  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.

  The first server rack L is, for example, one in which servers B that are normally heat generating devices are stacked one above the other. The second server rack S is, for example, a server A that is a low heat generating device and a server B that is a normal heat generating device stacked one above the other and has an intake / exhaust structure as described below. Is.

  Hereinafter, the intake / exhaust structure in the second server rack S will be described. Note that the second server rack S does not have an intake / exhaust structure as described here, for example, a server with a small number of servers or a server with a small amount of exhaust. Is also included.

  In the intake / exhaust structure 100 shown in FIGS. 5 and 6, the server A1, the server B1, the server A2, the server B2, the server A3, the server B3, and the server B4 are provided in the second server rack S from the bottom to the top. Arranged sequentially.

  In the intake / exhaust structure 100 of FIGS. 5 and 6, the exhaust from the servers A1 to A3 is sent to the servers A1 to A3, which are low heat generating devices, in the second server rack S on the front side of the other servers A (or B). And an induction member (exhaust rotation structure) 25 that is supplied to the other server A (or B) is provided.

  The induction member 25 is provided so as to protrude toward the exhaust side of the servers A1 to A3, which are low heat generation devices, and the warm air receiving box 26 that receives the exhaust of the servers A1 to A3, and the exhaust from the warm air receiving box 26 to other servers It consists of a turning pipe 27 that leads to the front side of A (or B).

  As shown in FIGS. 7 (a) and 7 (b), the warm air receiving box 26 is formed in a box shape, and its width (width from the right front side in the figure to the left back direction) and height (height in the figure vertical direction) are shown. The width and height of the server A are substantially equal. The front surface of the warm air receiving box 26 (the surface on the left front side in the figure) is an opening, and an opening 41 is formed. The warm air receiving box is attached to both ends of the opening 41 so that it can be attached to the rear surface of the server A. A mounting plate 42 is formed so that the side walls 43 of the 26 are extended forward. The attachment plate 42 may be formed integrally with the side wall 43 or may be attached to the side wall 43 as a separate body. An inlet end of a rotating pipe 27 made of a resinous and flexible material is attached to the upper surface of the warm air receiving box 26.

  The server A has an intake port 44 formed on the front surface and an exhaust port 45 formed on the rear surface. The server A is configured to intake air from the intake port 44 and exhaust air from the exhaust port 45 by a built-in fan. . The air exhausted from the exhaust port 45 is introduced into the warm air receiving box 26 and is introduced into the turning pipe 27 attached to the upper surface thereof.

  As shown in FIGS. 5 and 6, the outlet end of the turning pipe 27 is disposed above the server B positioned above and at substantially the same position as the front surfaces of the servers A and B.

  Specifically, the outlet pipe 27 of the server A1 arranged at the lowermost position is arranged such that its outlet end is located above the server B1 and below the server A2, and the turning pipe 27 of the server A1 is connected to its outlet end. Is positioned above the server B2 and below the server A3. The outlet pipe 27 of the server A3, which is the lowest heat generating device arranged at the top, has an outlet end positioned above the server B3 and below the server B4.

  The flow of air in the second server rack S will be described with reference to FIG.

  As shown in FIG. 6, the server A <b> 1 takes in air around the conditioned air (cold air) from the front side and exhausts warm air from the rear side. The warm air exhausted by the server A1 passes through the warm air receiving box 26 and the turning pipe 27 and is turned to the front side of the second server rack S. Most of the warm air exhausted from the outlet end of the rotating pipe 27 flows upward due to the difference in specific gravity with the conditioned air, and is supplied to the server A2.

  The server A2 draws in warm air and conditioned air exhausted by the server A1 from the front side, and exhausts warm air from the rear side. The warm air exhausted by the server A2 is supplied to the server A3 through the warm air receiving box 26 and the turning pipe 27. Similarly, the exhaust from the server A3 is supplied to the server B4.

  The server B4 sucks in the conditioned air from the front side, but also takes in the warm air exhausted from the server A3 together with a part thereof. The server B4 exhausts hot air from the rear side.

  That is, in the intake / exhaust structure 100, the exhaust of the lower server A (A1, A2) is sequentially guided to the front of the upper server A (A2, A3) by the turning pipe 27, and the exhaust of the uppermost server A3 is exhausted. The server B4 is guided in front of the server B4.

  As a result, the warm air gradually warms up from server A1 → server A2 → server A3 and approaches the hot air, and the warm air approaching this hot air is further warmed by the server B4, which is a normal heat generating device, and introduced into the hot area H as hot air. . If the exhaust temperature of the server A3 is high and already hot, the exhaust of the server A3 may be directly introduced into the hot area H without attaching the induction member 25 to the server A3.

  As for the servers B1 to B3, the air intake is performed mainly from the front side with the conditioned air, and the 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 server B4 preferably has a higher exhaust temperature than the servers B1 to B3.

  The intake / exhaust structure 100 is provided with a guide member 25 that guides the exhaust from the low heat generating device to the front side of the other heat generating device in the second server rack S and supplies it to the other heat generating device. Therefore, even when the server A, which is a low heat generating device having a low exhaust temperature, is accommodated in the second server rack S, the temperature of the air exhausted from the second server rack S (exhaust temperature) is lowered. This makes it possible to achieve efficient heat recovery. Further, in the intake / exhaust structure 100, the servers A and B, which are heat generating devices, are stacked and accommodated in the vertical direction, so that it is possible to appropriately supply cool air to the servers A and B. The heat dissipation of B will not be insufficient.

  The intake / exhaust structure 200 shown in FIGS. 8 and 9 arranges servers A1 to A3, which are low heat generating devices, in the second server rack S, and arranges servers B1 to B3, which are high heat generating devices, above them. It is a thing. In the second server rack S, a server A1, a server A2, a server A3, a server B1, a server B2, and a server B3 are sequentially stacked from the bottom to the top.

  A guide member 25 is attached to each of the servers A1 to A3, and the outlet ends of the turning pipes 27 of the servers A1 to A3 are positioned above the server A3 and below the server B1.

  The warm air receiving box 26 provided in the servers A <b> 1 to A <b> 3 is formed to have a larger length (length in the front-rear direction) as it is disposed below. That is, the warm air receiving box 26 is formed so that the length thereof becomes longer in the order of the server A3, the server A2, and the server A1. This is a device for reducing interference between the rotating pipes 27.

  The warm air exhausted from the servers A1 to A3 is turned to the front side of the second server rack S by the turning pipe 27 and supplied to the server B1. Here, since the warm air from the three servers A1 to A3 is supplied together and the amount of warm air supplied is large, the warm air is supplied not only to the server B1 but also to the servers B2 and B3 above it. It becomes.

  In this way, the rotating pipes of the servers A1 to A3 are gathered, the warm air from the servers A1 to A3 is guided to the front of the upper servers B1 to B3 and supplied to the servers B1 to B3, so that the warm air is sent to the server B1. Heated by ~ B3 to become hot air and introduced into the hot area H. Therefore, the temperature of the air exhausted from the second server rack S (exhaust temperature) can be prevented from being lowered, and efficient heat recovery can be realized.

  In the second server rack S, the intake / exhaust structure 300 shown in FIGS. 10 and 11 is configured such that a server A, which is a low heat generation device, and a server B, which is a high heat generation device, are alternately stacked. In the second server rack S, a server A1, a server B1, a server A2, a server B2, a server A3, and a server B3 are sequentially stacked from the bottom to the top.

  A guide member 25 is attached to each of the servers A1 to A3, and the outlet end of the turning pipe 27 of the server A1 is positioned above the server A1 and below the server B1. Similarly, the exit end of the turning pipe 27 of the server A2 is positioned above the server A2 and below the server B2, and the exit end of the turning pipe 27 of the server A3 is located above the server A3 and below the server B3. The

  As a result, warm air from the server A1 is supplied to the server B1, warm air from the server A2 is supplied to the server B2, and warm air from the server A3 is supplied to the server B3.

  In this way, the warm air from the servers A1 to A3 is guided and supplied to the front of the servers B1 to B3 above it, so that the warm air is warmed by the servers B1 to B3 to become hot air, and the second server rack S Thus, it is possible not to lower the temperature of the air exhausted from the exhaust gas (exhaust temperature).

  Furthermore, according to the intake / exhaust structure 300, the servers A and B are alternately arranged, so that the servers B1 to B3 that introduce (exhaust) hot air into the hot area H are arranged at regular intervals in the vertical direction. Thus, the exhaust temperature from the rear surface side of the second server rack S can be made constant as a whole.

  In the above-described intake / exhaust structure 100, 200, 300, the outlet end of the rotating pipe 27 is configured to be positioned below the server A or B positioned above, but the outlet end of the rotating pipe 27 is positioned downward. You may comprise so that it may be located under the server A or B located.

  In the intake / exhaust structure 400 shown in FIGS. 12 and 13, the server A1, the server A2, the server A3, the server B1, the server B2, the server B3, and the server B4 are sequentially provided in the second server rack S from the bottom to the top. Be placed. An area in which the servers A1 to A3 arranged below in the second server rack S 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 400, servers A <b> 1 to A <b> 1 that are low heat generation devices are disposed between the lower side of the server B <b> 1 directly above the low heat generation device area 31 and the lower portion of the second server rack S on the rear surface side of the second server rack S. A rear partition 33 is provided to prevent the exhaust of A3 from being exhausted directly to the rear of the second server rack S. Thereby, on the rear surface side of the second server rack S, exhaust can be performed only above the rear partition portion 33.

  The rear partition 33 has its upper end installed at the lowermost of the servers B1 to B4 from the upper surface of the server A3 (the position indicated by the broken line a in FIG. 13) disposed at the uppermost of the servers A1 to A3. It is desirable to form between the lower surfaces of the server B1 (positions indicated by broken lines b in FIG. 13).

  Further, below the front side of the second server rack S, between the lower side of the low heat generating equipment area 31 and the lower part of the second server rack S, the exhaust of the servers A1 to A3 introduced into the warm air accommodation space 32. Is provided with a front partition 34 for preventing the second server rack S from flowing forward from the front of the second server rack S. The front partition 34 is provided so as to block the front side of the portion where the servers A and B below the second server rack S are not arranged. Thereby, on the front side of the second server rack S, exhaust can be performed only above the front partition 34, but the servers A and B are all disposed above the warm air storage space 32, so the second server On the front side of the rack S, air can be sucked so as to correspond to the servers A and B in the vertical direction.

  The air flow in the second server rack S will be described with reference to FIGS.

  As shown in FIGS. 13 and 14, the exhaust from the servers A <b> 1 to A <b> 3, which are low heat generating devices, collides with the rear partition 33 on the rear surface side of the second server rack S. 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.

  The warm air introduced into the warm air accommodating space 32 is guided forward in the second server rack S so as to be pushed out as indicated by an arrow 141 in FIG. 14, and further collides with the front partition 34 and moves upward. After being guided, 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 second server rack S 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 said to be a low heat generating device. Since the exhaust gas that has become hot air has a low specific gravity, it flows upward as indicated by an arrow 142 in FIG. 14 and is discharged from above the rear partition 33 to the rear of the second server rack S, 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.

  As described above, the intake / exhaust structure 400 is provided with the rear partition 33 for preventing the exhaust of the servers A1 to A3 from being exhausted directly to the rear of the second server rack S, thereby providing the servers A1 to A3 which are low heat generation devices. The air having a low exhaust temperature is not exhausted to the hot area H as it is, but is reused and reused for cooling the servers A1 to A3, and is introduced into the hot area H after the exhaust temperature becomes high. I have to.

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

  Further, in the intake / exhaust structure 400, the warm air storage space 32 in which the servers A and B are not arranged is formed below the low heat generating device area 31 in the second server rack S. The air having a low exhaust temperature can be accumulated in the warm air accommodating space 32 formed below the air, and the air having a low exhaust temperature accumulates in the lower part in the second server rack S and gets over the rear partition 33. Can be prevented.

  Further, in the intake / exhaust structure 400, the front partition 34 is provided below the front side of the second server rack S and between the lower side of the low heat generating device area 31 and the lower side of the second server rack S. The exhaust of the servers A1 to A3 introduced into the warm air accommodation space 32 can be prevented from flowing out from the front surface of the second server rack S to the front cool area C.

  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 the second server rack S 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. A supply port for supplying conditioned air from the air conditioner may be formed in the ceiling R, and a recovery port 8 for collecting hot air may be formed in the ceiling R of the hot area H other than the cool area C.

  In addition, a heating device housing rack having the intake / exhaust structure 100, 200, 300, 400 of the heating device housing rack may be mixed in one rack group 3.

  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 (heating equipment storage rack)
5 Rack row 6 Panel 7 Partition 8 Recovery port 9 Heat recovery duct 20 Strut 21 Horizontal girder 22 Bolt 25 Guiding member 26 Warm air receiving box 27 Rotating pipe 31 Low heat generating device area 32 Warm air accommodating space 33 Rear partition 34 Front partition A Server (Low heat generation equipment)
B server (high heat generation equipment)
L 1st server rack (1st heat generating equipment accommodation rack)
S Second server rack (second heat generating equipment storage rack)

Claims (13)

A plurality of heat generating devices having fans for performing intake and exhaust are stacked in the vertical direction with the front side as the intake side and the rear side as the exhaust side, and are stored in the heat generation device storage rack. The rack rows are formed side by side in the left-right direction, and the rear surfaces of the rack rows face each other at an interval to form a rack group and are arranged on the floor surface in the air-conditioned room. The enclosed hot area is partitioned, and a plurality of recovery ports for recovering the hot air in the hot area to the heat recovery duct are formed on the ceiling in the hot area, and the conditioned air in the air-conditioned room is racked In the data center that is introduced from the front to the rear of the hot area,
In the rack group, the heat generating equipment storage racks with different hot air displacements are mixed,
The heating device accommodation rack includes a first heating device accommodation rack and a second heating device accommodation rack in which the amount of hot air exhausted is smaller than that of the first heating device accommodation rack.
The first heat generating device accommodating rack is dispersed for each of the plurality of recovery ports of the heat recovery duct, and the first heat generating device accommodating rack is disposed in the vicinity of each of the recovery ports. A data center characterized in that the heat generating device accommodation rack is arranged at a position away from each of the collection ports. A plurality of heat generating devices having fans for performing intake and exhaust are stacked in the vertical direction with the front side as the intake side and the rear side as the exhaust side, and are stored in the heat generation device storage rack. The rack rows are arranged side by side in the left-right direction, and the front sides of the rack rows face each other at an interval to form a rack group that is arranged on the floor surface of the air-conditioned room. The enclosed cool area is partitioned, a supply port for supplying conditioned air from the air conditioner is formed in the ceiling in the cool area, and hot air in the hot area is formed in the ceiling of the hot area other than the cool area. In the data center that forms a recovery port for recovering the heat in the heat recovery duct and introduces the conditioned air from the front to the rear of the rack row into the hot area.
In the rack group, the heat generating equipment storage racks with different hot air displacements are mixed,
The heating device accommodation rack includes a first heating device accommodation rack and a second heating device accommodation rack in which the amount of hot air exhausted is smaller than that of the first heating device accommodation rack.
The first heat generating device accommodating rack is dispersed for each of the plurality of recovery ports of the heat recovery duct, and the first heat generating device accommodating rack is disposed in the vicinity of each of the recovery ports. A data center characterized in that the heat generating device accommodation rack is arranged at a position away from each of the collection ports.   In the rack group, a panel extending from the lower edge of the rack row to the ceiling of the air conditioning room is provided at one end portion in the left-right direction of the both rack rows constituting the rack group, and the other end portion is disposed on the air conditioner. The data center according to claim 1 or 2, wherein a partition that is closed by a wall of a room and that extends to a ceiling is provided above the front edge of both rack rows.   Among the heat generating equipment housing racks that constitute the rack group, the one with the largest hot air exhaust capacity is 1, and the hot air exhaust capacity is 0.7 or less when the exhaust air capacity is 0.7 or less. The data center according to any one of claims 1 to 3, wherein the first heat-generating device housing rack is a rack that has a hot air exhaust amount exceeding 0.7.   The data center according to any one of claims 1 to 4, wherein the heat generating device accommodation rack constituting the rack group has a higher proportion of the second heat generating device accommodation rack than the first heat generating device accommodation rack. The second heat generating device accommodation rack can be sucked in the vertical direction of the front surface and can be exhausted in the vertical direction of the rear surface,
At least one of the plurality of heat generating devices housed in the second heat generating device housing rack is a low heat generating device whose exhaust temperature is a predetermined temperature or less,
The second heat generating device accommodation rack directs exhaust from the low heat generation device to the low heat generation device to the front side of other heat generation devices in the second heat generation device accommodation rack, The data center according to any one of claims 1 to 5, further comprising an intake / exhaust structure provided with a guide member for supplying heat generation equipment.   The induction member is provided so as to protrude to the exhaust side of the low heat generating device, and a warm air receiving box that receives the exhaust of the low heat generating device, and exhaust air from the warm air receiving box to the front side of the other heat generating device 7. A data center according to claim 6, comprising a guiding pipe for guiding.   A plurality of the low heat generating devices are disposed in the second heat generating device containing rack, and a normal heat generating device in which the exhaust temperature exhausted from the rear side is higher than a predetermined temperature is disposed above the lower heat generating device. The exhaust of the low heat generating device is sequentially guided to the front of the low heat generating device above by the turning pipe, and the exhaust of the top low heat generating device is guided to the front of the normal heat generating device by the rotating pipe. The data center according to claim 7, which is configured as described above.   A plurality of the low heat generating devices are disposed in the second heat generating device housing rack, and a normal heat generating device in which the exhaust temperature exhausted from the rear side is higher than a predetermined temperature is disposed above the low heat generating devices. 8. The data center according to claim 7, wherein turning pipes of the low heat generating devices are gathered so that exhaust of each of the low heat generating devices is guided to the front of the upper normal heat generating device. In the second heat generating equipment housing rack, the low heat generating equipment and the normal heat generating equipment in which the exhaust temperature exhausted from the rear side is higher than a predetermined temperature are alternately stacked and arranged,
8. The data center according to claim 7, wherein the exhaust of the low heat generating device is guided to the front of the normal heat generating device above the exhaust pipe by the turning pipe. The plurality of heat generating devices housed in the second heat generating device housing rack 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 the predetermined temperature,
Forming a low heat generating device area formed by laminating the low heat generating device below the second heat generating device containing rack, and laminating the normal heat generating device above the low heat generating device,
The second 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 on the rear side. A rear partition for preventing the exhaust of the low heat generating device from being exhausted directly to the rear of the second heat generating device containing rack between the side and the lower portion of the heat generating device containing rack, The data center according to any one of claims 1 to 5, further comprising an intake / exhaust structure capable of exhausting only above the partition portion.   A warm air accommodating space in which the two heat generating devices are not disposed is formed below the low heat generating device area in the second 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. 12. The data center according to claim 11, wherein   Below the front side of the second heat generating device accommodation rack, the exhaust of the low heat generating device introduced into the warm air containing 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 data center according to claim 12, further comprising a front partitioning portion for preventing the second heat generating device accommodation rack from flowing forward from the front surface.

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