JP2011003217A - Data center - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a data center which can reduce energy consumption in an air conditioner by efficiently dissipating heat generated in electronic equipment in a rack.SOLUTION: In the data center 10, a hot zone 24 is designated in an air conditioning chamber 13 by installing a partition 23 at the front edge upper part of a rack row 15 while arranging back faces R of the rack rows 15 facing each other with an interval on a floor surface 14 and installing a panel 21 at the horizontal end side of the rack column 15, and a plurality of air blow out ports 27 are arranged horizontally which exist outside the hot zone 24 and blow out air-conditioning air from an air conditioner 51 to a vertically lower side toward the ceiling forward of the rack columns 15 while forming a plurality of exhaust ports 26 arranged horizontally on the ceiling 20 of the hot zone 24.

Description

  The present invention relates to a data center that efficiently removes heat generated in an electronic device such as a server housed in a rack.

  Electronic devices such as servers are generally housed in a rack in a multi-stage and arranged in an air conditioned room. In electronic equipment, heat is generated with power consumption. In order to eliminate the adverse effects of this heat, conditioned air (cold air) is supplied to the electronic equipment contained in the rack by a cooling system such as an air conditioner. It is common to remove the heat generated in.

  As a conventional data center, as shown in FIG. 7, a rack row 72 is formed by arranging a plurality of racks 71 containing electronic devices such as servers in the air-conditioning room in the left-right direction, and the back surfaces of the rack rows 72 are connected to each other. The doors 75 and the roof panels 74 are arranged on the floor faced to be spaced apart from each other, and closed in the left-right direction of the rack rows 72 facing each other, that is, at the end portions in the longitudinal direction. By installing a single or a plurality of so-called modular data centers 70 in the air-conditioned room, the hot zone is defined by partitioning the air-conditioned room between the back sides of the rack rows 72 facing each other. There is one that constitutes a center (for example, see Patent Document 1). The door 75 is for entering the hot zone.

  In Patent Document 1, which is a type of data center in which a modular data center 70 is installed in an air conditioned room, one of the racks 71 has a built-in cooling device (air conditioner) to cool the air in the hot zone. Thus, the air is exhausted to the front side of the rack 71. That is, in the modular data center 70, conditioned air (cold air) is introduced from the front surface of the rack 71 to remove heat generated by the electronic equipment in the rack 71 and air that has absorbed the heat from the rear surface of the rack 71. The air is exhausted to the hot zone, and the air in the hot zone is cooled by a cooling device and exhausted to the front side of the rack 71.

  A refrigerant supply / return pipe 76 for supplying a refrigerant such as water or chlorofluorocarbon gas is connected to the cooling device accommodated in the rack 71. Electric power is supplied to each electronic device in the rack 71 via a power supply line 77.

  Thus, by concentrating the heat generated by the electronic device in a specific place (hot zone), the cooling device can be operated efficiently. That is, since it is not necessary to supply a low-temperature refrigerant to the cooling device as in a general air conditioning facility, it is possible to efficiently produce conditioned air (cold air) at low cost and without dehumidification.

JP 2006-526205 A

  However, in the above-described data center, heat generated in the electronic device is released from the upper surface of the rack 71 (rack row 72) and the upper surface of the roof panel 74 into the air-conditioned room, and the rack 71 generated by the heat and the cooling device. If the temperature of the conditioned air (cold air) introduced from the front of the rack 71 cannot be sufficiently cooled as a result of the mixing, the conditioned air (cold air) blown from the front side of the rack may be mixed. It was necessary to further pre-cool with an air conditioner (indoor air conditioner) separate from the cooling device incorporated in the mold data center 70. In this case, the energy consumed in the air conditioner (indoor air conditioner) is wasted, and there was a problem from the viewpoint of energy saving.

  In addition, since there is a type of server that exhausts upwards, when such a server is accommodated in the rack 71, a large amount of heat is released from the upper surface of the rack 71 into the air-conditioning room, and the above problem is remarkable. Appear in

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a data center that can solve the above-described problems and efficiently remove heat generated by electronic devices in a rack to reduce energy consumption in an air conditioner. It is in.

  The present invention was devised to achieve the above object, and at least a plurality of racks that accommodate multiple stages of electronic devices such as servers on the floor surface of the air conditioning room and the air conditioning room are arranged in the left-right direction. In the data center, the rack is arranged in the data center, and the air conditioner is configured to air-condition the interior of the air-conditioning room so as to remove heat generated by the electronic equipment accommodated in the rack. The rack rows are arranged on the floor surface of the air conditioning chamber with the back surfaces of the rack rows facing each other with a space therebetween, and the ends of the rack rows facing each other in the left-right direction. A panel extending from the lower edge of the rack row to the ceiling of the air conditioning room is provided on the side of the rack, and a partition extending to the ceiling is provided above the front edge of both rack rows to partition the hot zone in the air conditioning room. A plurality of exhaust ports for exhausting the air in the hot zone are arranged in the left and right direction so as to face the rack row in plan view on the ceiling in the zone, and the rack row outside the hot zone A plurality of outlets for blowing out conditioned air from the air conditioner vertically downward are arranged in the left-right direction so as to face each of the rack rows in plan view, and the air conditioner and the plurality An exhaust duct for connecting the air conditioner and the plurality of air outlets is provided on the back of the ceiling of the air conditioning room so as to face the rack row in plan view. The exhaust duct and the blowout duct are opposed to the rack row in plan view. The portions are linear in a plan view and are spaced apart from each other, and the conditioned air blown vertically downward from the plurality of outlets through the outlet duct passes from the front side to the rear side of the rack row, and After being introduced into the hot zone, the data center is introduced into the air conditioner through the exhaust duct from the plurality of exhaust ports.

  The fan may be provided with a rotational speed control device that controls the rotational speed of the fan so as to keep the temperature of the air sucked from the hot zone within a predetermined temperature range or a predetermined temperature.

  The exhaust duct and the outlet duct are each provided with a temperature sensor, and the fan is targeted for the temperature difference between the air-conditioned room and the hot zone based on the temperature difference measured by each temperature sensor. You may provide the rotation speed control apparatus which controls the rotation speed of the said fan so that it may correspond with a value.

  ADVANTAGE OF THE INVENTION According to this invention, the heat which generate | occur | produces with the electronic device in a rack can be removed efficiently, and the reduction of the energy consumption in an air conditioner can be aimed at.

It is a schematic sectional drawing of the data center of this invention. It is a top view of the data center of this invention. It is a side view of the data center of this invention. It is a front view of the data center of this invention. It is a schematic sectional drawing which shows an air conditioner and a heat recovery means in the data center of this invention. It is a flowchart for demonstrating operation | movement of the data center of this invention. It is a perspective view of the conventional data center.

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

  1 is a schematic sectional view of a data center according to the present embodiment, FIG. 2 is a plan view thereof, FIG. 3 is a side view thereof, and FIG. 4 is a front view thereof.

  As shown in FIGS. 1 to 4, the data center 10 includes at least a box-shaped air conditioning room 13 formed of a ceiling, a floor, and four side walls, and a plurality of electronic devices 11 such as servers. A rack row 15 formed by arranging the racks 12 in the left-right direction, and an air conditioner (not shown) that air-conditions the air-conditioning chamber 13 so as to remove heat generated in the electronic device 11 accommodated in the rack 12. Prepare.

  In the rack 12, electronic devices 11 that are equipment devices of information communication technology such as servers, CPUs, network devices, and storage devices are accommodated in multiple stages.

  In the data center 10, a plurality of racks 12 (12 in the present embodiment) are arranged in the left-right direction on the floor surface 14 of the air conditioning room 13 to form a rack row 15, and the back surfaces R of the rack row 15 are spaced apart from each other. Are placed facing each other. By arranging the rack rows 15 at intervals, work paths 16 are formed between the rack rows 15.

  These rack rows 15 are arranged on the floor surface 14 via a seismic isolation device 17. In the present embodiment, the seismic isolation device 17 is provided with the seismic isolation table 19 on the gantry 18 via a bearing, but is not limited thereto.

  Panels 21 extending from the lower edge of the rack row 15 to the ceiling 20 are provided on the left and right sides of the rack row 15. The panel 21 is provided with a door 22 for entering and exiting the work passage 16. The panel 21 is provided on the seismic isolation device 17.

  A partition 23 extending to the ceiling 20 is provided on the upper front edge of each rack row 15. The upper ends of the partition 23 and the panel 21 are provided so as to be movable with respect to the ceiling 20.

  A ceiling seal member 25 for sealing the hot zone 24 and the air conditioning chamber 13 is provided at the upper ends of the panel 21 and the partition 23. In the present embodiment, a rubber sheet is used as the ceiling seal member 25, and the rubber sheet is fixed to the upper end of the partition 23 on the hot zone 24 side with a bolt or the like so that the upper end portion is curved to the hot zone 24 side.

  As a result, a hot zone 24 partitioned from the air conditioning chamber 13 by the rack rows 15, the partitions 23, and the panel 21 is partitioned.

  The ceiling 20 in the hot zone 24 is formed with at least one exhaust port 26 (three in FIG. 2) for exhausting the heat in the hot zone 24. The exhaust port 26 is connected to a suction port of the air conditioner via an exhaust duct 53 (see FIG. 2). The exhaust duct 53 is provided with an exhaust side temperature sensor 69b (see FIG. 5) for measuring the temperature of air sucked from the hot zone 24.

  On the ceiling 20 of the air conditioning chamber 13 other than the hot zone 24 (the ceiling 20 in front of the rack row 15 in FIG. 1), there is at least one outlet 27 for blowing the conditioned air (cold air) from the air conditioner vertically downward (see FIG. 3 for 2). This blower outlet 27 is connected with the blower outlet of an air conditioner via the blower duct 52 (refer FIG. 2). The blowout duct 52 is provided with a blowout temperature sensor 69a (see FIG. 5) for measuring the temperature of the conditioned air blown from the blowout outlet 27.

  As shown in FIG. 5, the air conditioner 51 includes a fan 54 that sucks air in the hot zone 24 and a cooling coil (on the downstream side of the fan 54) that cools air from the fan 54 and blows out air-conditioned air. DC; DryCoil) 55.

  In addition, the data center 10 according to the present embodiment includes heat recovery means 56 that recovers the heat of the air exhausted from the exhaust port 26 before cooling it with the cooling coil 55 of the air conditioner 51.

  The heat recovery means 56 includes a heat recovery coil (HC; HeatCaptureCoil) 57 that recovers heat from the air exhausted from the exhaust port 26, a heat medium supply pipe 58 that supplies a heat medium to the heat recovery coil 57, and a heat recovery coil A heat medium discharge pipe 59 for discharging the heat medium recovered in 57 to other equipment such as a boiler, a heat medium pump 60 provided in the heat medium supply pipe 58, and a heat medium downstream of the heat medium pump 60 The regulator 61 provided in the supply pipe 58, the temperature sensor 62 for measuring the temperature of the heat medium in the heat medium discharge pipe 59, and the temperature measured by the temperature sensor 62 for the heat medium (temperature of the heat medium) are the highest. A heat recovery control device 63a that controls the flow rate of the heat medium by adjusting the opening of the regulator 61 so as to be higher is provided. The heat recovery control device 63a includes a PLC (Programmable Logic Controller).

  In this embodiment, water is used as the heat medium. The temperature of the water supplied to the heat recovery coil 57 is, for example, about 20 ° C., and the temperature of the hot water after passing through the heat recovery coil 57 is, for example, about 35-40 ° C.

  The heat recovery coil 57 is provided integrally with the air conditioner 51 and is provided downstream of the fan 54 and upstream of the cooling coil 55. Thereby, not only the heat of the air exhausted from the exhaust port 26 but also the heat generated by the fan 54 can be recovered by the heat recovery coil 57. The air recovered by the heat recovery coil 57 is cooled by the cooling coil 55 and becomes conditioned air at a predetermined temperature (for example, about 23 ° C.).

  Connected to the cooling coil 55 are a refrigerant supply pipe 64 for supplying the refrigerant and a refrigerant return pipe 65 for returning the refrigerant. A refrigerant pump 66 is provided in the refrigerant supply pipe 64. The refrigerant is water, for example.

  A bypass pipe 67 for bypassing the refrigerant without passing through the cooling coil 55 is connected to the refrigerant supply pipe 64 and the refrigerant return pipe 65, and a refrigerant bypass / A three-way valve 68 capable of adjusting the non-bypass mixing ratio is provided. This three-way valve 68 is a solenoid valve (generally equipped with a motor), and controls the flow rate of the refrigerant passing through the cooling coil 55 so that the temperature of the conditioned air after passing through the cooling coil 55 becomes a predetermined temperature (set temperature). Is made.

  The cooling control device 63b causes the three-way valve 68 to flow a larger amount of refrigerant through the cooling coil 55 when the temperature of the conditioned air measured by the outlet side temperature sensor 69a provided in the outlet duct 52 is higher than a predetermined temperature. When the temperature of the conditioned air measured by the blowout side temperature sensor 69a is lower than a predetermined temperature, the three-way valve 68 causes more refrigerant to flow through the bypass side so as not to pass through the cooling coil 55.

  Alternatively, when the bypass pipe 67 is not provided, that is, the flow rate of the refrigerant can be controlled by a two-way valve. Even in this method, the temperature of the conditioned air measured by the outlet side temperature sensor 69a is adjusted to a predetermined temperature. In order to determine the flow rate of the refrigerant to the cooling coil 55, the opening degree of the valve is automatically controlled.

  In this way, by controlling the flow rate of the refrigerant flowing through the cooling coil 55 by the cooling control device 63b, conditioned air having a desired temperature can be obtained. The cooling control device 63b is made of PLC.

  The fan 54 is connected to a power INV (inverter) board 63d having a variable output frequency. The fan 54 rotates at a rotational speed corresponding to the output frequency of the power INV board 63d. The power INV board 63d outputs an output frequency to the power INV board 63d so that the temperature of the air exhausted from the exhaust port 26 is kept within a predetermined temperature range or a predetermined temperature (for example, 40 to 42 ° C.). A rotation speed control device 63c for controlling the rotation speed of the fan 54 is connected.

  The rotation speed control device 63c is configured to set an exhaust side temperature sensor provided in the exhaust duct 53 based on a preset temperature Thigh (for example, 42 ° C.) as a maximum threshold and a temperature Tlow (for example, 40 ° C.) as a minimum threshold. When the temperature t measured at 69b (temperature of the air exhausted from the exhaust port 26) t is higher than the maximum threshold temperature Thigh, the rotational speed of the fan 54 is increased by a certain value (for example, the power INV panel 63d The output frequency is increased by 2 Hz per minute, and the increase operation may be performed while taking a time interval). Further, when the temperature t measured by the exhaust side temperature sensor 69b is lower than the minimum threshold temperature Tlow, the rotational speed of the fan 54 is decreased by a certain value (for example, the output frequency of the power INV panel 63d is reduced to 1 minute). The frequency is lowered by 1 Hz, and the lowering operation may be performed while taking a time interval). Alternatively, the operation of changing the frequency may be performed by normal PID control or a combination thereof, and this control method is not limited.

  Thus, by controlling the rotation speed of the fan 54 by the rotation speed control device 63c, the temperature t of the air discharged from the exhaust port 26, that is, the temperature t of the air in the hot zone 24 is set to a desired temperature range ( Temperature range from Thigh to Tlow). If Thigh = Tlow, the temperature of the air discharged from the exhaust port 26 (the temperature of the air in the hot zone 24) t can be set to a desired temperature Thigh (= Tlow). The rotation speed control device 63c is made of PLC.

  The air conditioner 51 is provided in a different space from the air conditioning room 13 in which the rack 12 is disposed, for example, in another room of the building where the data center 10 is provided, or outdoors. Thereby, like patent document 1, piping, such as a refrigerant | coolant, is not connected to the rack 12 (rack row | line | column 15), and the air conditioner 51 and the rack 12 (rack row | line 15) are completely cut away. In FIG. 5, the air conditioner 51 is depicted as if installed on the ceiling, but this is for convenience.

  In addition, for example, when the air conditioner 51 is installed in another space adjacent to the air conditioning room 13, it is desirable that the floor surface of the separate space be at a lower level than the floor surface of the air conditioning room 13. The form can be easily taken. This is because, for example, even if the refrigerant supply pipe 64, the refrigerant return pipe 65, the heat medium supply pipe 58, or the heat medium discharge pipe 59 associated with the air conditioner 51 is damaged and the refrigerant or the heat medium flows out, the refrigerant or heat This is a device that makes it difficult for the medium to enter the air-conditioned room 13.

  The operation of this embodiment will be described.

  As shown in FIG. 6, first, conditioned air (cold air) blown out from the conditioned air outlet of the air conditioner 51 is blown down from the outlet 27 through the outlet duct 52 and introduced into the air-conditioned room 13 (step). S1). At this time, the rotation speed control device 63c controls the output frequency of the power INV board 63d so that the rotation speed at which the initial wind speed at which the fan 54 is expected to be appropriate is obtained. The temperature of the conditioned air blown out is, for example, about 23 ° C.

  The conditioned air blown into the air conditioning chamber 13 is introduced into the rack 12 from the front surface F of the rack row 15 by a fan of the electronic device 11 such as a server, and recovers heat generated in the electronic device 11 in the rack 12 ( Step S2).

  The air that has recovered the heat generated in the electronic device 11 is introduced into the hot zone 24 from the rear surface R of the rack row 15 (step S3). Since the heat released from the upper surface of the rack 12 (rack row 15) is also released into the hot zone 24, all the heat generated in the electronic device 11 is collected in the hot zone 24.

  The air in the hot zone 24 is exhausted from the exhaust port 26 provided in the ceiling 20 in the hot zone 24 (step S4), and the temperature is continuously continuously detected by the exhaust side temperature sensor 69b provided in the exhaust duct 53. It is measured (step S5). The air that has passed through the exhaust-side temperature sensor 69 b is introduced into the suction port of the air conditioner 51 through the exhaust duct 53.

  The rotation speed control device 63c compares the temperature Thigh, which is a preset maximum threshold, with the temperature t measured by the exhaust-side temperature sensor 69b (step S6). If t> Thigh, the rotation speed of the fan 54 is compared. To increase the output frequency of the power INV board 63d by a certain value (for example, 2 Hz per minute) (step S7). As a result, the amount of conditioned air blown from the air conditioner 51 gradually increases, and the amount of conditioned air introduced into the rack 12 (rack row 15) increases, so the temperature of the air in the hot zone 24 is lowered. Can do.

  Further, the rotation speed control device 63c compares the temperature Tlow, which is a preset minimum threshold, with the temperature t measured by the exhaust-side temperature sensor 69b (step S8), and if t <Tlow, In order to reduce the rotational speed, control is performed to lower the output frequency of the power INV board 63d by a certain value (for example, 1 Hz per minute) (step S9). As a result, the amount of conditioned air blown out from the air conditioner 51 is gradually reduced, and the amount of conditioned air introduced into the rack 12 (rack row 15) is reduced. Therefore, the temperature of the air in the hot zone 24 is increased. Can do.

  The air introduced into the suction port of the air conditioner 51 passes through the fan 54 and recovers the heat generated by the fan 54 and then is introduced into the heat recovery coil 57. The heat recovery coil 57 recovers the heat of the air introduced from the fan 54, and recovers a high-temperature heat medium (hot water) closest to the temperature of the air (step S10). The high-temperature heat medium that has passed through the heat recovery coil 57 is discharged to other equipment such as a boiler.

  The air that has passed through the heat recovery coil 57 is introduced into the cooling coil 55, cooled to a predetermined temperature (for example, 23 ° C.) by the cooling coil 55, and blown out from the conditioned air outlet of the air conditioner 51 as conditioned air (cold air). (Step S11).

  By repeating the above steps S1 to S11, the temperature t of the air exhausted from the exhaust port 26, that is, the temperature t of the air in the hot zone 24 is changed to a temperature range of Thigh to Tlow (for example, a temperature of 40 to 42 ° C. Range), and the heat recovery coil 57 can efficiently recover the heat.

  As described above, in the data center 10 according to the present embodiment, the rear surfaces R of the rack rows 15 are arranged to face each other, and the partition 23 is provided on the upper front edge of each rack row 15. Heat released from the top surface is also introduced into the hot zone 24. Therefore, the heat released from the upper surface of the rack 12 is not released into the air conditioning chamber 13, and all the heat generated in the electronic device 11 can be concentrated in the hot zone 24.

  Further, the partition 23 and the ceiling seal member 25 eliminate the mixing of the cold air coming out of the air outlet 27 and the heat in the hot zone 24. For this reason, it is not necessary to set the temperature of the conditioned air as low as that of the conventional air conditioner (for example, about 11 to 15 ° C.).

  As an effect of this, it is not necessary to supply a low-temperature refrigerant (for example, 6 ° C. to 13 ° C.), which is conventionally used as a standard, to the air conditioner 51, and the supply temperature of the refrigerant is increased (for example, 16 ° C. to 20 ° C.). Also, the electronic device 11 can be cooled. As a result, unnecessary dehumidification is eliminated in the cooling coil 55, and it is no longer necessary to perform humidification that was required as a result of dehumidification, so that conditioned air (cold air) can be created efficiently and inexpensively.

  In addition, in selecting a heat source (for example, a refrigerator, a cooling tower, etc.) to cool the refrigerant, there is a wider range of options and effective periods of methods that can be cooled by cold outside air without using a refrigerator. Furthermore, energy saving can be improved.

  In this method, since the air is heated and the specific gravity is reduced and easily rises, and the specific gravity is increased after cooling, the flowability (convection) of the conditioned air can be improved. It is possible to reduce energy consumed as power.

  Furthermore, by keeping the temperature in the hot zone 24 intentionally high, it is possible to enhance the above-described effect and operate the air conditioner 51 more efficiently.

  Therefore, a large amount of energy is not consumed by the air conditioner 51 as a whole, and great energy saving can be realized on the heat source side and the air conditioner body on the consumption side.

  Furthermore, in the present embodiment, the heat of the air exhausted from the exhaust port 26 is recovered by the heat recovery means 56 before being cooled by the cooling coil 55, and the heat collected in the hot zone 24 is effectively diffused without being diffused. can do.

  In this embodiment, since the heat recovery coil 57 is provided integrally with the air conditioner 51, the overall size can be reduced. Further, since the heat recovery coil 57 is provided on the downstream side of the fan 54 and the upstream side of the cooling coil 55, the heat generated by the fan 54 can be recovered by the heat recovery coil 57, and more effective heat recovery is possible. Can be realized. Further, since heat is recovered by the heat recovery coil 57 and then cooled by the cooling coil 55, the cooling energy cost in the cooling coil 55 can be reduced.

  The present embodiment is characterized in that at least one air outlet 27 is formed in the ceiling of the air-conditioning chamber 13 other than the hot zone 24, and the conditioned air is blown out from the air outlet 27 "vertically downward". As a result, even if air is blown at a slow wind speed (for example, breeze: 1 m / s or less) when air-conditioned air is supplied, the fall due to the difference in specific gravity from the surroundings becomes air circulation energy, and the rack 12 is moved from a high place. The conditioned air can be evenly supplied to the front surface of the electronic device 11 (usually having cooling air suction fans individually on the front surface of the main body) arranged in a distributed manner at low locations. As a result, the electronic device 11 can be sufficiently cooled even when the rotational speed of the fan 54 (circulation air volume in the air-conditioning chamber 13) is small. Therefore, the temperature t of the air in the hot zone 24 is set within a predetermined temperature range, Alternatively, the rotational speed of the fan 54 can be determined with priority given to the predetermined temperature. Since the rotational speed of the fan 54 can be reduced, the energy consumed by the fan 54 (power required for circulating air) can be reduced as a result.

  In this embodiment, since the rack row 15 is provided on the seismic isolation device 17 and the rack row 15 and the air conditioner 51 are completely separated (not connected by piping or the like), even if an earthquake occurs There is no risk of damage to the electronic equipment 11 due to breakage of piping such as refrigerant. Furthermore, by making the panel 21 and the partition 23 movable with respect to the ceiling 20, even if a displacement difference occurs between the rack 12 (rack row 15) and the building when an earthquake occurs, the rack 12 may fall over. Disappear.

  In the above embodiment, the case where the rotational speed of the fan 54 is controlled so that the temperature t of the air in the hot zone 24 falls within a predetermined temperature range or a predetermined temperature has been described, but the exhaust side temperature sensor 69b and the blowout side temperature sensor are described. Based on the temperature difference measured by 69a, the rotational speed of the fan 54 may be controlled so that the temperature difference between the air in the hot zone 24 and the air-conditioned room 13 (air-conditioned air) matches the target value. Good. This makes it possible to recover heat at the most efficient temperature while cooling the electronic device 11.

  In the above embodiment, the case where the rack rows 15 are arranged in two rows has been described. However, the present invention is not limited to this, and other geometric arrangements may be used. Further, a plurality of racks 12 may be arranged instead of the panel 21 and the partition 23 may be provided on the upper front edge.

  In the above-described embodiment, the panels 21 extending from the lower edge of the rack row 15 to the ceiling 20 of the air conditioning chamber 13 are provided on both ends in the left-right direction of the rack row 15 so as to close the space between the rack rows 15. In this case, the side wall of the air conditioning chamber 13 may be substituted for the panel 21 on the one end side, and the side wall of the air conditioning chamber 13 may be substituted for the panel 21 on the other end side. It is considered.

  The present invention is not limited to the above-described embodiments, but is interpreted as embodying all modifications and alternative configurations included in the scope of the basic teachings described in the present specification that can be conceived by those skilled in the art. Should be.

  In the present invention, “panel” and “partition” are properly used. For example, the material is different and the material is different in the sense that the material is different. A partition member is a “partition”, and a connecting member that connects the rack rows (including the partition portion) at the end in the left-right direction of the rack row is a “panel”. The “panel” and “partition” may be either a single-sheet configuration or a divided configuration.

  Finally, the data center shown in Patent Document 1 is a type in which a modular data center 70 is installed in an air-conditioned room, that is, a complete modular type. Is a part of the modular type that is partly fused with the air-conditioning room that is strong against earthquake and energy saving as mentioned above.

10 Data Center 11 Electronic Equipment 12 Rack 13 Air Conditioning Room 14 Floor 15 Rack Row 20 Ceiling 21 Panel 23 Partition 24 Hot Zone 26 Exhaust Outlet 27 Air Outlet 51 Air Conditioner 54 Fan 55 Cooling Coil 56 Heat Recovery Means 57 Heat Recovery Coil

Claims (3)

At least generated in the air conditioning room, a rack row in which a plurality of racks that house electronic devices such as servers on the floor surface of the air conditioning room are arranged in the left-right direction, and the electronic equipment housed in the rack In a data center equipped with an air conditioner that air-conditions the air-conditioned room to remove heat,
The air conditioner is provided in a separate space from the air conditioning room where the rack row is arranged,
The back surfaces of the rack rows are arranged on the floor surface of the air conditioning room facing each other with a space therebetween, and the left and right ends of the facing rack rows are arranged from the lower edge of the rack row to the air conditioning room. A panel extending to the ceiling is provided, and a partition extending to the ceiling is provided above the front edge of both rack rows to partition a hot zone in the air-conditioned room,
A plurality of exhaust ports for exhausting air in the hot zone are arranged in the left-right direction so as to face the rack row in plan view on the ceiling in the hot zone, and outside the hot zone, A plurality of outlets that blow out the conditioned air from the air conditioner vertically downward on the ceiling in front of the rack row are arranged in the left-right direction so as to face each of the rack rows in plan view,
An air exhaust duct that connects the air conditioner and the plurality of exhaust ports is provided behind the ceiling of the air conditioning chamber so as to face the rack row in plan view, and the air conditioner and the plurality of outlets And an outlet duct connecting the air conditioning chamber to the rack row and facing the rack row in plan view,
Each of the exhaust duct and the blowout duct is opposed to the rack row in a plan view, is a straight line in a plan view, and is spaced from each other.
Air-conditioned air blown vertically downward from the plurality of outlets through the outlet duct is introduced into the hot zone from the front to the rear of the rack row, and then from the plurality of exhaust outlets through the exhaust duct. A data center installed in the air conditioner.   The data center according to claim 1, wherein the fan is provided with a rotation speed control device that controls a rotation speed of the fan so that the temperature of air sucked from the hot zone is maintained within a predetermined temperature range or a predetermined temperature.   The exhaust duct and the outlet duct are each provided with a temperature sensor, and the fan is targeted for the temperature difference between the air-conditioned room and the hot zone based on the temperature difference measured by each temperature sensor. The data center according to claim 1, further comprising a rotation speed control device that controls the rotation speed of the fan so as to match the value.

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