JP2020021386A - Server room air conditioning system, and data center - Google Patents

Abstract

To provide a server room air conditioning system and a data center which can improve efficiency in cooling a server room and flexibly allows server apparatus and air-conditioners to be increased.SOLUTION: The present invention is directed to a server room air-conditioning system for a server room provided by housing a server apparatus in a server rack. The system has a server room, and an air-conditioning machine room provided in an upper portion of the server room and is characterized in that the server room has a plurality of server rack groups having a large number of server racks disposed therein and disposed in plural columns, that an air intake route for supplying cold air and an exhaust path for exhausting warm air exhausted from the server rack groups are alternately disposed, that the air-conditioning machine room has a plurality of indoor air conditioners for supplying cold air to the server room, and that the plurality of indoor air-conditioners are disposed on an upper portion of the intake route for supplying cold air to the server rack groups from their upwards.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a server room air-conditioning system and a data center that perform air-conditioning management in a data center that accommodates server devices.

  In a server room of a data center where a plurality of server devices for managing data are installed, the temperature of the room is constantly controlled by an air conditioning system in order to cool the operating server devices. In a data center, a cold aisle / hot aisle air-conditioning system for efficiently cooling a server device is generally adopted. A cold aisle (hereinafter also referred to as CA) is a path of cold air provided to supply cool air, and a hot aisle (hereinafter also referred to as HA) is a path of warm air exhausted after cooling a server device. It is. In the cold aisle / hot aisle air-conditioning system, a server rack row is systematically arranged so that CA and HA are clearly separated from each other, and the server devices housed in the server rack are efficiently cooled.

  As a trend of data centers in recent years, the electric capacity per server rack (server) housed in a server room has been increasing year by year with the improvement of the capacity of server devices. Therefore, it is important to install an air conditioner that cools servers in the data center. As the electric capacity of the server increases, the amount of heat generated from the server also increases.

  Then, in order to increase the number of air conditioners installed in the data center, the area of the air conditioner room increases, and the problem that the server room area for installing the server decreases. Furthermore, in the data center, in addition to the UPS (uninterruptible power supply) for power failure countermeasures, it is necessary to install a number of unique equipment such as a power distribution board (PDU) dedicated to server power supply. Therefore, it is becoming difficult to arrange an air-conditioning machine room having a sufficient floor area in consideration of the above.

  Further, in the layout plan of the air-conditioning machine room, there is a demand to add or move an air conditioner while the server device group in the server room is operating. When adding or relocating air conditioners, it is recommended that the piping in the refrigerant between the indoor units installed indoors and the outdoor units installed outdoors, the electrical wiring routes, and the loading / unloading routes of the air conditioners be installed in the server room as much as possible. It is necessary to plan flexibly so as not to affect the operation.

JP 2012-78056 A

  For example, a system described in Patent Literature 1 is known as a system for cooling a server device in a data center. In this server room air conditioning system, a UPS room is installed on the lower floor of the server room, and an air conditioning machine room is installed adjacent to the UPS room. According to such an arrangement structure of the equipment, the cool air discharged from the air conditioning machine room is supplied to the server room from the outlet provided on the floor of the server room on the upper floor after passing through the UPS room. In an arrangement structure such as an air conditioning system for a server room described in Patent Literature 1, when an air conditioner is increased in response to an increase in server load, the installation space of the air conditioner may be restricted.

  The present invention has been made in view of the above-described problems, and provides a server room air conditioning system and a data center that can flexibly cope with an increase in the number of server devices and air conditioners while improving the cooling efficiency of the server room. The purpose is to provide.

  In order to achieve the above object, the present invention is a server room air conditioning system for a server room in which a server device is housed in a server rack and installed, wherein the server room and the server room are provided in an upper layer. In the server room, a server rack group in which a large number of the server racks are arranged is installed in a plurality of rows, and between the plurality of server rack groups, An intake path through which cool air is supplied and an exhaust path through which warm air is exhausted from the server rack group are alternately arranged, and the air conditioning machine room is provided with a plurality of air-conditioning indoor units that supply cool air to the server room. The plurality of indoor air-conditioning units are disposed above the intake path, and supply cool air to the server rack group from above, in a server room air-conditioning system.

  According to the present invention, since the air-conditioning machine room is disposed above the server room, the circulation path of cool air and warm air can be simplified.

  Further, the server room air-conditioning system according to the present invention may be configured such that the plurality of air-conditioning indoor units are arranged above the intake path so as to directly supply cool air to the intake path.

  ADVANTAGE OF THE INVENTION According to this invention, since the cool air sent from the air-conditioning indoor unit arrange | positioned above a server apparatus falls so that it may directly hit a lower server apparatus, the cooling efficiency of a server room can be improved.

  In the air conditioning system for a server room according to the present invention, a plurality of UPSs for supplying power to the server device and a plurality of PDUs for distributing power to the server device are installed in the air conditioning machine room when a power outage occurs. The plurality of UPSs and the plurality of PDUs are disposed at an upper portion of the exhaust path, and the warm air exhausted from the server rack group and the warm air exhausted from the plurality of UPSs and the PDUs are supplied to the air-conditioned room. It may be configured to be taken into the machine.

  According to the present invention, by arranging the UPS and the PDU above the server device, the wiring for connecting the server device and the UPS and the PDU is simplified, and the distance of the warm air circulation path is reduced. Can be shortened.

  The server room air conditioning system according to the present invention may be configured such that an air conditioning outdoor unit corresponding to the air conditioning indoor unit is installed on the roof of the air conditioning machine room.

  ADVANTAGE OF THE INVENTION According to this invention, the piping of the piping which connects an air conditioning indoor unit and an air conditioning outdoor unit can be simplified by installing an air conditioning outdoor unit above an air conditioning indoor unit.

  Further, the server room air conditioning system according to the present invention may be configured such that an air conditioning outdoor unit corresponding to the air conditioning indoor unit is installed on an outdoor side of an outer wall of the air conditioning machine room where the air conditioning indoor unit is installed. Good.

  According to the present invention, the air conditioner outdoor unit corresponding to the air conditioner indoor unit in the air conditioner room is installed on the outer wall of the air conditioner room, so that the module including the server room and the air conditioner room in the data center is layered and added. Can be made easier.

  Further, the data center according to the present invention may be configured such that a plurality of the modules are installed with a server room air conditioning system including the server room and the air conditioning machine room as one module.

  According to the present invention, it is possible to easily design and add a data center according to the load of the server device by adding modules.

  Further, the data center according to the present invention may be configured so that the modules are adjacently and / or layered to construct a plurality of the modules.

  ADVANTAGE OF THE INVENTION According to this invention, the design and expansion according to the state of the land where a data center is installed can be performed easily.

  ADVANTAGE OF THE INVENTION According to the air-conditioning system for server rooms and data center which concerns on this invention, while increasing the cooling efficiency of a server room, it can respond flexibly to expansion of a server apparatus and an air conditioner.

It is a front view showing arrangement relation of composition of a server room air-conditioning system of a data center concerning an embodiment of the present invention. It is a top view which shows the arrangement | positioning relationship of the structure of the air conditioning system for server rooms corresponding to every floor. It is a top view which shows the state which expands the module of the air conditioning system for server rooms in a horizontal surface direction. It is a top view which shows the arrangement | positioning relationship of the structure of the state which added the module of the air conditioning system for server rooms to a perpendicular direction. It is a top view which shows the other arrangement | positioning relationship of the structure of the state in which the module of the air conditioning system for server rooms was expanded in the perpendicular direction.

  Hereinafter, an embodiment of an air conditioning system for a server room of the present invention will be described with reference to the drawings.

  As shown in FIGS. 1 and 2, the server room air-conditioning system 1 supplies cool air from an air-conditioning machine room 20 to a server room 10 installed in a data center, and a large number of servers installed in the server room 10. This is for cooling the device S. The server room 10 is configured with, for example, a square floor area of 11 m on a side as one unit.

  In the server room 10, a number of server racks 11 for accommodating the server device S are installed. The server rack 11 includes a type in which one high-capacity server device S is accommodated, and a type in which a plurality of server devices S are hierarchically installed on a shelf framed frame. Which type of server rack 11 is installed is arbitrarily set according to the user's request. The server rack 11 can accommodate one or a predetermined number of server devices S from the floor surface to the ceiling.

  By installing a plurality of server racks 11 in combination, a module that is one unit of the system this time is configured. The server racks 11 are installed adjacent to each other, and constitute a group of server racks 12 that are linearly connected. In the server rack group 12, for example, a maximum of 14 server racks 11 are arranged. In the server room 10, a plurality of server rack groups 12 are arranged in a row. In the example of FIG. 2, five rows of server rack groups 12 are installed in the server room 10. Therefore, in the server room 10, for example, a maximum of 14 × 5 rows = 70 server racks are installed. The server room plan including the 70 server racks 11 is defined as a module.

  By the way, the server device S, for example, operates an internal cooling fan, takes in air from the front side, guides the air to the circuit board in a heated state, cools the circuit board, and removes air heated from the rear side. It is configured to exhaust. For this reason, when a large number of server devices S are installed in the server rack 11 without being aligned, not only the exhausted warm air is disturbed, the cooling efficiency is reduced, but also the maintainability is reduced and the wiring relationship is complicated. .

  For this reason, in the server rack group 12, many server apparatuses S are arranged so that the front side faces a fixed direction substantially orthogonal to the row direction of the server rack group 12. The adjacent server rack groups 12 are arranged in parallel so that the front side or the rear side of many server devices S face each other. When the plurality of server rack groups 12 are arranged in a row as described above, a corridor-like first space in which the front side of the server device S faces and a corridor-like second space in which the back surface of the server device S faces. Are formed. The first space and the second space are alternately arranged between the plurality of server rack groups 12.

  For example, when cool air for cooling the server device S is supplied to the first space, the cool air is taken into a large number of server devices S, so that the first space forms a cooling air passage. Thus, the first space is referred to as a cold aisle 13 because it serves as a cold air intake path. The cold aisle 13 has a width enough for a worker to perform maintenance work. Cold air is supplied to the cold aisle 13 from the ceiling side as described later.

  In the cold aisle 13, a flow path C is created such that the cool air supplied from above falls naturally. Cold air accumulates from the floor of the cold aisle 13 and is filled up to the top of the server rack group 12 facing the cold aisle 13. In this way, a cold air pool is generated in the cold aisle 13. Thereby, cool air is also supplied from the server device S arranged on the floor side to the server device S arranged on the ceiling side.

  In the cold aisle 13, lockable doors may be provided at openings at both ends serving as entrances to the opposing server rack group 12 for security measures for the server device S. When such doors are provided, the cold aisle 13 is a space surrounded on all sides by the opposing server rack group 12 and the doors at both ends, so that cold air can be more easily stored.

  On the other hand, since the second space is a warm air pool where warm air exhausted from a large number of server devices S is collected, the air is exhausted from the second space to form a warm air passage. Thus, the second space is referred to as a hot aisle 14 because it serves as a warm air exhaust path. In the hot aisle 14, warm air is exhausted from the ceiling side as described later. The hot aisle 14 has a width enough for a worker to perform maintenance work. The warm air exhausted from the many server devices S to the hot aisle 14 generates a flow path H that naturally rises toward the ceiling.

  When the height of the server rack group 12 does not reach the ceiling, a partition wall or the like may be provided in a gap between the top of the server rack group 12 and the ceiling. By providing such a partition, the cool air supplied from the air-conditioning indoor unit in the cold aisle 13 and the warm air discharged from the server device S in the hot aisle 14 are reliably prevented from being mixed, and the server device S Cooling efficiency is improved.

  An air conditioning machine room 20 is provided on the upper floor of the server room 10. In the air conditioning machine room 20, a plurality of air conditioning indoor units 21 are installed. The plurality of air-conditioning indoor units 21 are arranged in three rows in this embodiment. One row of air-conditioning indoor units 21 is arranged above the cold aisle 13 along the longitudinal length of the cold aisle 13. In each row, for example, four air-conditioning indoor units 21 are installed. The plurality of air conditioner indoor units 21 in one row are referred to as an air conditioner indoor unit group 22.

  Two air conditioning indoor units 21 are installed in the left column in FIG. 2 among the three rows of air conditioning indoor unit groups 22. Therefore, ten air-conditioning indoor units 21 are installed in the air-conditioning machine room 20. Among them, one air conditioning indoor unit 21 is installed as a spare. As will be described later, when the module of the air-conditioning machine room 20 is newly added adjacent to the left side of the module, four air-conditioning indoor units 21 may be installed in the left column.

  The air-conditioning indoor unit 21 is configured to supply, for example, cool air downward from the bottom side. Ventilation holes (not shown) are provided on the floor surface (the ceiling of the server room 10) of the air conditioning machine room 20 where the air conditioning indoor unit 21 is placed. The ventilation holes communicate with the cold aisle 13 of the server room 10. For this reason, the indoor unit 21 can supply cool air to the cold aisle 13 through the ventilation holes on the floor. As described above, in the server room air-conditioning system 1, the distance between the server device S and the air-conditioning indoor unit 21 is reduced by arranging the air-conditioning indoor unit 21 to directly supply the cool air to the cold aisle 13. It can be made substantially the shortest, and the cooling efficiency of the server room 10 can be improved.

  A plurality of uninterruptible power supplies (hereinafter, referred to as UPS 23) and a plurality of server devices for stably supplying the power of the server device S are provided in an empty space 25 between the adjacent air-conditioning indoor unit groups 22. A power distribution unit (hereinafter, referred to as PDU 24) for distributing power to S is arranged.

  The UPS 23 includes, for example, a storage battery, and normally holds the storage battery in a charged state, and supplies power to the server device S during a power failure. The PDU 24 includes a plurality of power taps, and is connected to a power cable of the server device S. The UPS 23 and the PDU 24 are arranged, for example, above the hot aisle 14 in the empty space 25. The indoor unit 21 and the UPS 23 and the PDU 24 are connected by wirings W such as a power cable. The number of power distribution systems of wirings W connecting the UPS 23 and the PDU 24 to the server rack 11 is determined according to the specifications of the server.

  As described above, when the corresponding outdoor air-conditioning unit 31 is disposed above the air-conditioning indoor unit 21, the piping and wiring can be simplified. With such an arrangement, the wirings W between the server device S and the UPS 23 and the PDU 24 can be set to a substantially shortest distance.

  An exhaust port (not shown) communicating with the hot aisle 14 of the server room 10 is provided on a floor surface of an empty space of the air conditioning machine room 20. The warm air guided from the hot aisle 14 to the air conditioning machine room 20 through the exhaust port is taken into the air conditioning indoor unit 21 together with the warm air discharged from the UPS 23 and the PDU 24. The warm air taken into the air-conditioning indoor unit 21 is subjected to heat exchange by a heat exchanger inside the air-conditioning indoor unit 21, becomes cool air, and is supplied from the air-conditioning indoor unit 21 to the cold aisle 13.

  As described above, the server room air-conditioning system 1 is configured such that the air-conditioning indoor unit 21 directly supplies cold air to the cold aisle 13 to cool the server rack 11 installed below and take in warm air from the hot aisle 14. With the arrangement relationship, the distance between the circulation paths of the cool air flow path C and the warm air flow path H can be reduced, and the thermal efficiency in the heat cycle of the data center can be improved.

  On the rooftop 30 of the air-conditioning machine room 20, for example, a plurality of air-conditioning outdoor units 31 for exchanging heat of the air taken into the air-conditioning indoor units 21 are provided. The plurality of air conditioner outdoor units 31 are divided into three rows of air conditioner outdoor unit groups 32 and arranged in rows.

  In the air conditioner outdoor unit group 32 of each row, for example, four air conditioner outdoor units 31 are installed corresponding to the air conditioner indoor units 21. Of these, two air conditioning outdoor units 31 are installed in the left column in FIG. Therefore, ten air-conditioning outdoor units 31 are installed on the rooftop 30. Among them, one air conditioner outdoor unit 31 is installed as a spare. As will be described later, when the module on the rooftop 30 is added adjacent to the left side, four air-conditioning outdoor units 31 can also be installed in the left column.

  Each air-conditioning outdoor unit 31 is arranged above the corresponding air-conditioning indoor unit 21. The air-conditioning indoor unit 21 and the air-conditioning outdoor unit 31 are connected by pipes for circulating a refrigerant and electric wiring (pipes P). As described above, when the corresponding outdoor air-conditioning unit 31 is disposed above the air-conditioning indoor unit 21, the piping and wiring can be simplified. When such an arrangement is applied, the distance required for piping and wiring in the server room air conditioning system 1 is reduced as compared with a general air conditioning system in which an air conditioning machine room is installed on the lower floor of the server room. Is done.

  Further, according to the arrangement structure of the server room air-conditioning system 1 described above, when the load on the server rack 11 in the data center increases and higher cooling performance is required, the operation of the server room 10 is not stopped. In addition, in the air-conditioning machine room 20 and the rooftop 30, it is possible to easily perform reinforcement, expansion, and change work of the air conditioner including the air conditioner indoor unit 21 and the air conditioner outdoor unit 31.

  The server room air-conditioning system 1 includes a server room 10, an air-conditioning machine room 20, and a rooftop 30 having a two-story structure as one module. Center can be built.

  As shown in FIG. 3, when four modules each having a two-story structure are arranged in a matrix, a data center in which the floor area of the server room 10 is quadrupled can be designed. If such a four-module structure is further expanded adjacently in the horizontal direction, it is possible to design a data center in which the floor area of the server room 10 is eight times larger than one module. As described above, in each module, the wirings W and the pipes P are independently connected to each device in each module. Therefore, the module to which the server room air-conditioning system 1 is applied is used to design the data center. Planning can be easier.

  As shown in FIG. 4, the modules of the two-story structure may be added in layers. A data center can be designed by further providing a module of a two-story structure above the module of a two-story structure. In this case, a data room 10A for the upper module is provided on the third floor, which is a position corresponding to the roof 30 on the second floor, in the lower module, and an air conditioning machine room 20A is provided on the fourth floor.

  Then, it is necessary to separately provide a space for installing the air conditioner outdoor unit 31 corresponding to the air conditioner indoor unit 21 on the second floor. Therefore, the outdoor air conditioner 31 corresponding to the indoor air conditioner 21 on the second floor is provided in an empty space on the rooftop 40 on the fourth floor. In this case, a pipe-shaped shaft space D penetrating from the second floor to the roof is provided on the outer wall G. In the shaft space, pipes P for connecting the air conditioner indoor unit 21 on the second floor and the air conditioner outdoor unit 31 installed on the rooftop 40 are inserted.

  As shown in FIG. 5, the air conditioner outdoor unit 31 corresponding to the air conditioner indoor unit 21 on the second floor may be installed on the outdoor side of the outer wall G of the air conditioner room 20. On the second floor, for example, when a balcony is provided, the air-conditioning outdoor unit 31 corresponding to the air-conditioning indoor unit 21 on the second floor is installed on the balcony B. When the balcony B is not provided on the second floor, a support member (not shown) may be attached to the outer wall G, and the outdoor air conditioner 31 may be placed or suspended on the support member.

  As described above, if the air-conditioning outdoor unit 31 is installed around the outer wall G of the air-conditioning machine room 20, it is possible to design the data center to be higher by further stacking the modules. The above-described stacked module may be further added adjacent to the horizontal direction.

  As described above, according to the server room air conditioning system 1 of the embodiment, it is possible to flexibly cope with an increase in the number of server devices and air conditioners while improving the cooling efficiency of the server room. The server room air-conditioning system 1 is designed so as to be modularized so that the server room can be freely added in the horizontal and vertical directions, and the shape and area of the land where the data center is installed. Design and expansion can be easily performed according to conditions such as the above. Thus, according to the server room air-conditioning system 1, it is possible to reduce the initial cost for arranging the facilities and the facility operation costs such as the facility repair. According to the server room air conditioning system 1, the data center planning can be facilitated by using a modularized data center design.

  As described above, one embodiment of the server room air-conditioning system according to the present invention has been described, but the present invention is not limited to the above-described embodiment, and can be appropriately changed without departing from the gist thereof. For example, the number and arrangement of the server racks, indoor air-conditioning units, outdoor air-conditioning units, UPSs and PDUs in the above-described embodiments are not limited to the above-described embodiments, and different numbers and other arrangements may be adopted. In addition, when the installed air-conditioning outdoor unit has a small installation space, the air-conditioning outdoor unit may be installed so as to overlap with the existing air-conditioning outdoor unit. Grating may be used for the floor surface of the air conditioning machine room. Also, dimensions other than the above-described embodiment may be adopted as the dimensions of the module.

DESCRIPTION OF SYMBOLS 1 ... Server room air conditioning system 10, 10A ... Server room 11 ... Server rack 12 ... Server rack group 13 ... Cold aisle 14 ... Hot aisle 20, 20A ... Air conditioning machine room 21 ... Air conditioning indoor unit 22 ... Air conditioning indoor unit group 23 ... UPS
24 ... PDU
25 ... empty space 30, 40 ... rooftop 31 ... air-conditioning outdoor unit 32 ... air-conditioning outdoor unit group B ... balcony C ... channel D ... shaft space G ... outer wall H ... channel P ... piping S ... server device W ... wiring

Claims (7)

A server room air conditioning system for a server room in which a server device is housed in a server rack and installed,
Said server room;
Air conditioning machine room provided in the upper layer of the server room,
In the server room, a server rack group in which a number of the server racks are arranged is arranged and installed in a plurality of rows, and between the plurality of server rack groups, an intake path through which cool air is supplied, An exhaust path for warm air exhausted from the server rack group is arranged alternately,
The air-conditioning machine room is provided with a plurality of air-conditioning indoor units that supply cool air to the server room, and the plurality of air-conditioning indoor units are arranged above the intake path and supply cool air to the server rack group from above. Characterized in that
Air conditioning system for server room. The plurality of air-conditioning indoor units are arranged at an upper portion of the intake path so as to directly supply cool air to the intake path,
The air conditioning system for a server room according to claim 1. In the air-conditioning machine room, a plurality of UPSs for supplying power to the server device at the time of a power failure and a plurality of PDUs for distributing power to the server device are installed,
The plurality of UPSs and the plurality of PDUs are disposed above the exhaust path, and the warm air exhausted from the server rack group and the warm air exhausted from the plurality of UPSs and the plurality of PDUs are supplied to the air-conditioning indoor unit. Characterized by being taken into the
The server room air conditioning system according to claim 1 or 2. The air-conditioning outdoor unit corresponding to the air-conditioning indoor unit is installed on the roof of the air-conditioning machine room,
The air conditioning system for a server room according to any one of claims 1 to 3. The air-conditioning outdoor unit corresponding to the air-conditioning indoor unit is installed on an outdoor side of an outer wall of the air-conditioning machine room where the air-conditioning indoor unit is installed,
The air conditioning system for a server room according to any one of claims 1 to 4. A server module air-conditioning system including the server room and the air-conditioning machine room according to any one of claims 1 to 5, wherein a plurality of the modules are installed as one module,
Data center. The module according to claim 6, wherein a plurality of the modules are constructed adjacent and / or stacked.
Data center.

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