JP2014106558A - Cooling device of data center - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform air conditioning in a data center installed in a lower floor of a building by utilizing a chimney effect produced in an elevator shaft of an elevator installed in the building.SOLUTION: A cooling device of a data center 10 having a plurality of information devices 3 installed on a floor 2 of a room 1 is formed of: a first air conditioning chamber 11 which is provided under the floor and has air holes 21 opened to the floor surface; a second air conditioning chamber which is provided on a ceiling 5 of the room 1 and includes an outside air introduction part 4 for taking in outside air, openings 51 communicating with the room 1, and an inside air discharge part 6 for discharging air flowing from the openings 51, to the outside of the room; and a bypass duct 9 which connects the first air conditioning chamber 11 and the second air conditioning chamber 12 and includes an air conditioner 20. The inside air discharge part 6 is connected to an elevator shaft 7 provided in a building 50, and the chimney effect of the elevator shaft 7 is utilized to ventilate the room.

Description

  The present application relates to a data center cooling apparatus that cools a data center using a chimney effect of a chimney-shaped exhaust duct.

  Conventionally, IT (information technology) equipment such as servers, storage systems, network equipment, and IT equipment mounting racks in which IT equipment is stacked are installed in rooms and spaces called data centers, machine rooms, or server rooms. . An IT device has a CPU and other functional parts and generates heat in the process of consuming electric power. However, in order to ensure reliability and operation, it is necessary to maintain an environmental temperature below a certain temperature (for example, 28 ° C. or below). For this reason, it is common to install an air flow generating component such as a fan as an air conditioning system in a room where IT equipment is installed, and keep the room temperature below a certain temperature by forced air cooling by the air conditioning system. In the thermal design of an IT device, it is assumed that the IT device sucks air within a certain temperature (18 ° C. to 28 ° C.) into the main body from an air intake port provided on the front surface of the main body.

  Normally, IT equipment such as servers is a 19-inch rack (standardized so that a variety of vendor products can be mounted, and the horizontal interval between the screws for mounting the equipment is 19 inches. The height is 70 cm to 2 m). In a large-scale data center, a rack row is formed by a large number of racks on which IT equipment is mounted, and the front or back surfaces of adjacent rack rows face each other (hot aisle / cold aisle). The cold aisle has a grill (or floor opening, punching panel, etc.) on the floor surface, and supplies cooling air generated by the air conditioning system to IT equipment through the space (air conditioning room) provided under the floor. IT equipment is cooled.

  There are various types of air conditioning systems for cooling IT equipment. For example, an air conditioner type having an indoor unit and an outdoor unit, a type in which the indoor unit cools air with water, and a type in which water is cooled by an external turbo refrigerator are listed. An air conditioner type air conditioning system having a refrigeration cycle function includes a compressor (compressor) driven by a motor, and cools air by flowing a refrigerant through an evaporator. In this case, in any air conditioning system, the indoor unit that cools the air in the space / room by heat exchange has a blower such as a blower. In order to cool the IT equipment and release the cooling air whose temperature has risen to the outside, A blower such as a blower is generally used. In other words, in an air conditioner type air conditioning system, a blower and a compressor are operated to cool air and a blower is also operated to release air to the outside, so that a large amount of power energy is consumed.

  Since the energy used in the air conditioning system is the second largest in the data center after the energy for operating the IT equipment, it is very important to improve the efficiency of the air conditioning system in order to save power in the data center. Until now, the cooling systems for data centers have mainly been air circulation systems in buildings where the exhaust of IT equipment is cooled by an air conditioner (hereinafter referred to as an air conditioner) and supplied to the IT equipment again. On the other hand, in recent years, in order to minimize the operation cost required for cooling the data center, an air conditioning system that supplies cold external air directly to the IT equipment in winter has been considered (for example, see Patent Document 1). In such an outside air introduction type air conditioning system, it is not necessary to operate a cooling source facility such as a chiller that uses the most electric power in the cooling facility when the outside air is introduced, so that the electric power used for cooling can be greatly reduced.

JP 2010-261696 A

  However, in the existing outside air introduction type air conditioning system, an introduction fan and an exhaust fan for introducing outside air are necessary, and there is a problem that equipment cost increases.

  In one aspect, the present application relates to the introduction of outside air into a data center in the winter by using the chimney effect of a communication space (duct) that penetrates the building when the data center is installed on a lower floor of the building. It is an object of the present invention to provide a data center cooling device that can be realized.

  In another aspect, when a data center is installed on a lower floor of a building, it is possible to use the chimney effect generated in the elevator shaft to introduce outside air into the data center in winter. An object is to provide a cooling device.

  According to an embodiment of the present invention, there is provided a cooling apparatus for a data center, which is provided under a floor on which a plurality of information devices are installed, includes an outside air introduction unit for taking in outside air, and includes an air intake of the information devices. The first air-conditioning room connected to the entrance and the ceiling of the data center are connected to the air outlet of the information device and exhaust the air discharged from the air outlet to the outside of the data center. There is provided a data center cooling device, comprising: a second air-conditioning chamber including an inside air discharge portion, wherein the inside air discharge portion communicates with a side surface of the chimney-shaped exhaust duct.

  According to another aspect of the embodiment, the data center cooling apparatus is provided below the floor of a room in which a plurality of information devices are installed, and includes a first air-conditioning room provided with a vent hole communicating with the room; A second air conditioning room provided on the ceiling of the room, comprising an outside air introduction part for taking in outside air, an opening communicating with the room, and an inside air discharge part for discharging air flowing in from the opening to the outside of the room; A bypass duct that communicates between the air-conditioning room and the second air-conditioning room, and an air conditioner that is provided in the bypass duct, sucks air from the first air-conditioning room, adjusts the temperature, and discharges the air to the second air-conditioning room And a cooling device for a data center, characterized in that the inside air discharge portion communicates with the side surface of the chimney-shaped exhaust duct.

1 is an external view of a building that includes an elevator shaft that raises and lowers an elevator and has a data center installed on a lower floor. It is a fragmentary sectional view which shows the structure of the cooling device of the data center of 1st Example of this application. It is a fragmentary sectional view which shows the structure of the cooling device of the data center of 2nd Example of this application. It is a fragmentary sectional view which shows the structure of the cooling device of the data center of 3rd Example of this application. It is sectional drawing of the perpendicular direction of the building shown by FIG. (A) is the elements on larger scale which show the structure of one Example of the external air introduction part in the cooling device of the data center of the 1st to 3rd Example, (b) is the data center of the 1st to 3rd Example It is a partial expanded sectional view which shows the structure of the other Example of the external air introduction part in this cooling device. It is a fragmentary sectional view which shows the structure of the cooling device of the data center of 4th Example of this application. It is a fragmentary sectional view which shows the structure of the cooling device of the data center of 5th Example of this application. It is a flowchart which shows one Example of the control procedure of the damper in a 5th Example. It is the front view, top view, and side view of a data center when the cooling device of this application is installed in the data center shown in FIG. It is a perspective view which shows the structure of the cooling device of the data center of this application when a data center is installed in the container.

  Hereinafter, embodiments of the present application will be described in detail based on specific examples with reference to the accompanying drawings. In the following description, components having the same function will be described with the same reference numerals even if they have different shapes.

  FIG. 1 shows an example of the configuration of a building 50 provided with an elevator shaft 7 for raising and lowering an elevator, the data center 10 being installed on a lower floor LF such as the second floor, and the data center 10 extracted from the building 50. The elevator shaft 7 penetrates from the lower floor LF to the upper floor HF of the building 50 and reaches the roof 52, and is considered to be a kind of chimney duct having a chimney effect. An office is generally occupying the floor above the data center 10 of the building 50.

  As shown in the data center 10, a number of information devices 3 are installed on the floor 2 of the room 1. The information device 3 is a server, a storage system, a network device, or the like, and is also called an IT device. A hole 17 provided in the center of the floor 2 is a through hole for allowing the elevator shaft 7 to pass therethrough. Many of the data centers 10 adopt a free access floor structure having an air conditioning space 11 under the floor 2 in order to cool the information equipment 3 that generates heat during operation. In the free access floor structure, the warm air discharged from the information device 3 is drawn into the air conditioner 20 installed in the room 1 from above, cooled, discharged into the air conditioning space 11 under the floor, and provided on the floor 2. It returns to the room 1 from a perforated floor tile (not shown). That is, the air in the room 1 of the data center 10 is continuously convectively circulated by the free access floor structure, and the airflow is heated or cooled.

  In contrast to the above-described free access floor structure of the data center 10, the data center 10 to which the present application is applied is an air conditioning space 11 below the floor 2 of the room 1 as in the first embodiment shown in FIG. And a cooling device 61 having a second air conditioning chamber 12 on the ceiling 5 is provided. Hereinafter, the air conditioning space 11 is referred to as a first air conditioning chamber 11. On the floor 2, there are a plurality of information devices 3 accommodated in a rack 13, and on the upper portion of the information devices 3, there are fans 16 for flowing cooling air into the rack 13. The first air conditioning chamber 11 includes an outside air introduction unit 4 for taking in outside air, and is connected to an air intake 31 of the rack 13 in which the information device 3 is incorporated. The second air conditioning chamber 12 is connected to the air discharge port 32 of the rack 13 in which the information device 3 is incorporated, and the air discharged from the air discharge port 32 and flowing into the second air conditioning chamber 12 is transferred to the room 1. The inside air discharge part 6 which discharges outside is provided.

  In the first embodiment, since the air inlet 31 of the rack 13 is on the floor and the air outlet 32 is on the ceiling, the information device 3 is placed vertically in the rack 13. In the first embodiment, the inside air discharge unit 6 is connected to the side surface of the chimney-shaped exhaust duct 7 provided adjacent to the room 1, but the chimney-shaped exhaust duct 7 is located inside or outside the room 1. It may be in either. When the room 1 and the chimney-shaped exhaust duct 7 are separated from each other, the inside air discharge unit 6 may be connected to the side surface of the chimney-shaped exhaust duct 7 using a communication duct. The chimney-shaped exhaust duct 7 is a long duct continuous in the vertical direction, and an elevator shaft corresponds to this in a building. The outside air introduction part 4 and the inside air discharge part 6 can be opened and closed. Since the outside air introduction part 4 is for taking in cold outside air, it is closed when the outside air temperature is high. The outside air introduction unit 4 has a structure that prevents rain from entering.

  Furthermore, in the first embodiment, both the outside air introduction unit 4 and the inside air discharge unit 6 are provided with air flow rate adjustment units 4A and 6A that adjust the flow rate of air that passes through when opened. Only the outside air introduction unit 4 may be provided with the air flow rate adjusting unit 4A, or the inside air discharge unit 6 may be provided with the air flow rate adjusting unit 6A. When the air flow rate passing through the air flow rate adjusting units 4A and 6A can be made zero, the open / close mechanism may not be provided in the outside air introduction unit 4 and the inside air discharge unit 6.

  FIG. 6A shows the configuration of an embodiment of the air flow rate adjusting unit 4A. In this embodiment, the outside air temperature sensor 18 is provided on the outer wall surface of the building 50, and the output of the outside air temperature sensor 18 is input to the control device 15 that controls the air flow rate adjusting unit 4A. When the temperature of the outside air detected by the outside air temperature sensor 18 falls below a predetermined temperature, the control device 15 opens the air flow rate adjustment unit 4A of the outside air introduction unit 4. In this configuration, an electromagnetic valve can be used for the air flow rate adjusting unit 4A. At this time, the control device 15 operates so as to open an air flow rate adjustment unit in an inside air discharge unit (not shown). As another embodiment, instead of providing an electromagnetic valve that is opened and closed by the control device 15 in the air flow rate adjustment unit 4A of the outside air introduction unit 4, an opening and closing valve with a thermostat as shown in FIG. It is also possible to open the outside air introduction part 4 when the temperature becomes lower than a predetermined temperature.

  In the cooling device 61 of the first embodiment formed as described above, the outside air introduction part 4 and the inside air discharge part 6 are opened when the outside air temperature is low as in winter. Then, due to the chimney effect of the chimney-shaped exhaust duct 7, the air inside the chimney-shaped exhaust duct 7 rises, and the air in the second air conditioning chamber 12 is sucked out from the inside air discharge unit 6 by this rising airflow. When the air in the second air conditioning room 12 is sucked out, the air in the first air conditioning room 11 is supplied to the second air conditioning room 12 through the information device 3 accommodated in the rack 13. And the air which flowed from the inside of the 1st air-conditioning room 11 to the 2nd air-conditioning room 12 flows in from the outside through the external air introduction part 4. FIG. Since the air flowing into the first air conditioning chamber 11 from the outside air introduction unit 4 is cold air, the information device 3 is cooled by passing through the information device 3 accommodated in the rack 13.

  The chimney effect is an updraft in the duct caused by gas buoyancy in a duct that is long in the vertical direction. When there are fluids having different temperatures, there is a property that the higher the temperature (the lower the density), the higher the temperature, and the lower the temperature (the higher the density). In particular, the chimney effect of a duct in a building or the like is caused by the intrusion of outside air from the gap or opening of the building, leading to an increase in the heating load in the building.

  As shown in FIG. 5, in the winter building 50, the air heated in the building 50 moves to the upper floor HF side of the building through a vertically continuous duct such as the elevator shaft 7. For this reason, in the office 40H on the upper floor HF side of the building 50, air leaks from windows, ventilation openings, and other gaps. On the other hand, in the office 40L on the lower floor LF side of the building 50, since the warm air rises to a negative pressure with respect to the outside air, the cold outside air enters through doors, windows, and other gaps. The present application uses this phenomenon to cool the information equipment by taking in cold outside air as described above, thereby reducing the cooling cost of the data center.

  FIG. 3 shows the structure of the cooling device 62 of the data center 10 according to the second embodiment of the present application. In the second embodiment, in addition to the structure of the cooling device 61 of the data center 10 of the first embodiment, the bypass duct 9 that communicates between the first air conditioning chamber 11 and the second air conditioning chamber 12. Is provided. An air flow rate adjusting unit 9A is provided at the connection portion of the bypass duct 9 with the second air conditioning chamber 12, and the flow rate of air flowing through the bypass duct 9 is adjusted by the air flow rate adjusting unit 9A.

  The cooling device 62 of the data center 10 of the second embodiment is further provided with a temperature sensor 8 in the first air conditioning chamber 11 to measure the temperature of the first air conditioning chamber 11. In the second embodiment, the flow rate of air passing through the air flow rate adjusting units 4A and 4B is adjusted according to the temperature detection value of the temperature sensor 8. In the cooling device 62 of the data center 10 according to the second embodiment, when the outside air temperature is very low, the amount of outside air flowing into the first air conditioning chamber 11 from the outside air introduction unit 4 can be reduced.

  FIG. 4 shows the structure of the cooling device 63 of the data center 10 according to the third embodiment of the present application. In the third embodiment, in addition to the structure of the cooling device 62 of the data center 10 of the second embodiment, air is introduced into the bypass duct 9 that communicates the first air conditioning chamber 11 and the second air conditioning chamber 12. A harmony device (air conditioner) 20 is provided. Since the other structure is the same as that of the cooling device 62 of the data center 10 of the second embodiment, the same components are denoted by the same reference numerals and description thereof is omitted.

  The air conditioner 20 includes at least a heat exchanger 22 and a fan (blower, blower) 23, for example. As the heat exchanger 22, a fin and tube type in which fins are made of aluminum and pipes are made of copper can be used. Cold water or refrigerant cooled by a heat source device such as a chiller circulates in the pipe, and heat recovery of the hot air discharged from the information device 3 collected in the air conditioner 20 is performed. The air conditioner 20 takes in air of about 30 ° C., cools it to about 20 ° C. with the heat exchanger 22, and feeds it into the first air conditioning chamber 11 with the fan 23.

  In the cooling device 63 of the data center 10 of the third embodiment, when the outside air temperature is high such as in summer, the outside air introduction unit 4 and the inside air discharge unit 6 are closed, and the air conditioner 20 is operated to operate the room 1 of the data center 10. Can be cooled. When the outside air temperature sensor 18 is attached to the outer wall surface of the building 50 and a low outside air temperature is detected as in winter, the outside air introduction part 4 and the inside air discharge part 6 are opened, and the chimney of the chimney-shaped exhaust duct 7 is opened. As a result, the room 1 of the data center 10 can be cooled.

  FIG. 7 shows the structure of the cooling device 64 of the data center 10 according to the fourth embodiment of the present application. A plurality of information devices 3 are installed on the floor 2 of the room 1, and a first air conditioning room 11 is provided below the floor 2. A second air conditioning room 12 is provided on the ceiling 5 of the room 1. Further, a bypass duct 9 is provided in the room 1 to communicate the first air conditioning chamber 11 and the second air conditioning chamber 12, and an air conditioner 20 is provided in the bypass duct 9. Yes. The air conditioner 20 sucks air from the second air conditioning chamber 12, adjusts the temperature (cools), and discharges the air to the first air conditioning chamber 11.

  The floor 2 of the room 1 is provided with a plurality of ventilation holes 21 communicating with the first air conditioning chamber 11, and the cooled air sent from the air conditioner 20 to the first air conditioning chamber 11 is the ventilation holes. Blow out from room 21 into room 1. The ventilation holes 21 are opened in the floor 2 on the air intake side (cold aisle) of the information device 3. On the other hand, the ceiling 5 of the room 1 is provided with a plurality of openings 51 communicating with the second air conditioning chamber 12, and the air in the room 1 is sucked into the second air conditioning chamber 12. The opening 51 is opened in the ceiling 5 located above the cooling air discharge port side (hot aisle) of the information device 3. The second air conditioning chamber 12 is provided with an outside air introduction portion 4 for taking in outside air, and an inside air discharge portion 6 that discharges the air flowing in from the outside air introduction portion 4 and the opening 51 to the outside of the room 1. Is provided.

  Further, in the fourth embodiment, the cold air ejected from the ventilation hole 21 does not turn to the cooling air discharge port side of the information device 3, and the warm air discharged from the cooling air discharge port of the information device 3 is the air of the information device 3. Dripping walls 24 and 25 are provided between the information device 3 and the ceiling 5 so as not to turn to the intake side. The hanging wall 24 partitions the hot aisle and the cold aisle, and the hanging wall 25 partitions the cold aisle and the air conditioner. The hanging wall 24 may be a hanging curtain. The hanging walls 24 and 25 can be formed using vinyl or metal, and the material is not particularly limited, and has a role of blocking air flow between the cold aisle and the hot aisle.

  Since the fourth embodiment is provided with a cold aisle and a hot aisle, the information equipment 3 mounted on the rack 13 is placed horizontally on the rack 13, and all the cooling air intakes of the information equipment are provided. Facing the cold aisle, all cooling air outlets face the hot aisle. The rack 13 has four columns (mounting angles), and the information device 3 is fixed to the rack 13 using mounting rails. When the rack 13 is box-shaped, punching openings are provided on the cooling air intake side and the cooling air discharge side of the information equipment. The rack 13 is made of, for example, aluminum.

  In the fourth embodiment, the inside air discharge unit 6 is connected to the side surface of the chimney-shaped exhaust duct 7 that penetrates the room 1. When the data center 50 is installed on a lower floor of a building equipped with an elevator, the chimney-shaped exhaust duct 7 may be the elevator shaft 7. In the outside air introduction part 4 and the inside air discharge part 6 provided in the second air conditioning chamber 12, an air flow rate adjustment part 4A similar to the air flow rate adjustment parts 4A, 6A described in the first to third embodiments, 6A can be provided. Since the air flow rate adjusting unit 4A is installed on the outer wall of the building, it has a structure in which rain does not enter the second air-conditioning chamber 12 from the outside when it is open and closed.

  In the cooling device 64 of the data center 50 of the fourth embodiment, the outside air introduction unit 4 and the inside air discharge unit 6 are closed and the air conditioner 20 installed in the bypass duct 9 is operated when the outside air temperature is high as in summer. Thus, the room 1 of the data center 10 can be cooled. If the outside air temperature sensor 18 is attached to the outer wall surface of the building 50 and the outside air temperature is detected as low as in winter, the outside air introduction part 4 and the inside air discharge part 6 are opened, and the chimney effect of the elevator shaft 7 is achieved. The room 1 of the data center 10 can be cooled.

  FIG. 8 shows the structure of the cooling device 65 of the data center 10 according to the fifth embodiment of the present application. In the fifth embodiment, in addition to the structure of the cooling device 64 of the data center 10 of the fourth embodiment, a damper 4D is provided in the outside air introduction section 4. The damper 4D can adjust the aperture ratio by the damper control unit 14, and has the same mechanism as the air flow rate adjusting unit 4A described above. In the mid-winter period or the like, if the outside air is taken in too much with little heat generation in the data center 10, the inside of the data center 10 may become too cold. If the inside of the data center 10 is too cold, static electricity may be generated and the information device 3 may break down.

  In the fifth embodiment, the temperature sensor 8 is installed on the air intake side of the air conditioner 20 provided in the bypass duct 9, and the damper controller 4 is provided with an opening ratio of the damper 4 </ b> D according to the temperature detected by the temperature sensor 8. The adjustment is done. When the temperature detected by the temperature sensor 8 is low, the opening ratio of the damper 4D is reduced, and the air volume introduced into the second air conditioning chamber 12 is adjusted to be small. An example of the control of the damper 4D by the damper control unit 14 is shown in FIG.

  In the flowchart shown in FIG. 9, in step 901, the return air temperature C of the air conditioner (air conditioner) is detected by the temperature sensor 8. In the next step 902, the detected temperature C is compared with the reference temperature TR. If it is determined in step 902 that the detected temperature C is lower than the reference temperature TR (YES), the process proceeds to step 903, the damper 4D is controlled to close, and this routine is terminated. On the other hand, if it is determined in step 902 that the detected temperature C is equal to or higher than the reference temperature TR (NO), the process proceeds to step 904, the damper 4D is controlled to open, and this routine is terminated. By incorporating such control, it is possible to prevent an accident in which the temperature of the information device 3 decreases more than necessary.

  FIG. 10 shows a front view, a plan view, and a side view of the data center 10 when the cooling device of the present application is installed in the data center 10 shown in FIG. The X, Y, and Z directions shown in FIG. 1 correspond to the X, Y, and Z directions in FIG. Since the reference numerals shown in FIG. 10 coincide with the reference numerals of the members described in the first to fifth embodiments, detailed description thereof is omitted here. As described above, when the data center 10 is provided on the entire floor and the elevator shaft 7 passes through the room 1, the inside air discharge unit 6 is provided on the side surface where the door of the elevator shaft 7 is not provided. Can do. In this embodiment, the inside air discharge portion 6 is provided on the opposite side surfaces of the elevator shaft 7. In this embodiment, the outside air introduction part 4 is provided on the opposite side wall of the building 50. However, the number and installation positions of the outside air introduction parts 4 are not limited to this example.

  In the embodiment described above, the first or second air conditioning room in the data center is connected to the elevator shaft, and the outside air is introduced using the chimney effect. However, there is a moving elevator in the elevator shaft. When the elevator is lifted, the inside of the elevator shaft below the elevator becomes negative pressure, and when the elevator is lowered, the inside of the elevator shaft below the elevator is Become positive pressure. Accordingly, a check valve is provided in the inside air discharge portion so that air in the elevator shaft does not enter the first or second air conditioning chamber from the inside air discharge portion while the elevator is descending. Further, when the elevator is raised, the air flow rate adjusting unit of the inside air discharge unit operates so that excessive air does not flow out from the inside air discharge unit into the elevator shaft.

  FIG. 11 shows the structure of the sixth embodiment of the present application, and shows the structure of the cooling device 66 when the data center 10 is installed in the container 30. Since the data center 10 of the sixth embodiment is not installed in a building as in the first to fifth embodiments, the shape of the members is different, but the same reference numerals are used for the same functions. A description will be given.

  The container 30 is provided with a first air conditioning chamber 11 under the floor 2, and a second air conditioning chamber 12 is provided above the ceiling 5. The floor 2 is provided with a plurality of racks 13 in which the information devices 3 are accommodated, a bypass duct 9 that communicates with the first air conditioning chamber 11 and the second air conditioning chamber 12 and is provided with an air conditioner 20 inside. It has been. 9B is an inlet of the air conditioner 20. Further, the floor 2 is provided with a ventilation hole 21 communicating with the first air conditioning chamber 11, and cold air in the first air conditioning chamber 11 is blown out into the room 1 through the ventilation hole 21. . An opening for flowing air from the room 1 to the second air conditioning room 12 is not shown.

  Further, a chimney-like exhaust duct 7 extending in the vertical direction is provided next to the container 30. One side surface of the chimney-shaped exhaust duct 7 is coupled to one side surface of the container 30, and the inside air discharge unit 6 is provided on the joint surface with the chimney-shaped exhaust duct 7 of the second air conditioning chamber 12. And the outside air introduction part 4 which takes in outside air is provided in the end surface on the opposite side to the inside air discharge part 6 of the 2nd air conditioning chamber 12. As shown in FIG.

  Even when the data center of the present application is installed in a small building such as a container, the chimney effect of the chimney exhaust duct 7 is used when the outside air temperature is low by installing the chimney exhaust duct 7 on the side. Cooling is possible.

  The present application has been described in detail with particular reference to preferred embodiments thereof. For easy understanding of the present application, specific forms of the present application are appended below.

(Supplementary note 1) A data center cooling device,
A first air-conditioning chamber that is provided under a floor where a plurality of information devices are installed, includes an outside air introduction unit for taking in outside air, and is connected to an air intake port of the information device;
A second air outlet provided on the ceiling of the data center, connected to the air outlet of the information device, and for discharging the air discharged from the air outlet to the outside of the data center; With air conditioning room,
The cooling apparatus for a data center, wherein the inside air discharge portion is connected to a side surface of a chimney-shaped exhaust duct.
(Supplementary note 2) The data center cooling device according to supplementary note 1, wherein an air flow rate adjustment unit for adjusting a flow rate of air passing through is provided in at least one of the outside air introduction unit and the inside air discharge unit.
(Additional remark 3) The temperature sensor is provided in the said 1st air-conditioning room, The air flow volume which passes the said air flow volume adjustment part according to the temperature detection value of the said temperature sensor is adjusted, The additional remark 1 characterized by the above-mentioned. Or the data center cooling device according to 2.
(Supplementary note 4) The data center cooling device according to supplementary note 3, wherein the temperature sensor is provided adjacent to an air intake port of the information device.
(Supplementary Note 5) The data center cooling device according to any one of Supplementary Notes 1 to 4, further comprising a bypass duct that communicates the first air-conditioning chamber and the second air-conditioning chamber.

(Supplementary note 6) The supplementary note 5, wherein the bypass duct is provided with an air conditioner that sucks air from the first air-conditioning chamber, adjusts the temperature, and discharges the air to the second air-conditioning chamber. Data center cooling system.
(Supplementary note 7) The data center cooling device according to any one of supplementary notes 1 to 6, wherein the chimney-shaped exhaust duct is provided so as to penetrate the data center.
(Appendix 8) A data center cooling device,
A first air conditioning room provided under the floor of a room in which a plurality of information devices are installed, and provided with a vent hole communicating with the room;
A second air conditioning room provided on the ceiling of the room, comprising an outside air introduction part for taking in outside air, an opening communicating with the room, and an inside air discharge part for discharging air flowing in from the opening to the outside of the room When,
A bypass duct communicating the first air conditioning chamber and the second air conditioning chamber;
An air conditioner that is provided in the bypass duct, sucks air from the first air conditioning chamber, adjusts the temperature, and discharges the air to the second air conditioning chamber;
A cooling apparatus for a data center, wherein the inside air discharge part is connected to a side surface of a chimney-like exhaust duct.
(Supplementary note 9) The data center cooling device according to supplementary note 8, wherein at least one of the outside air introduction portion and the inside air discharge portion is provided with an air flow rate adjustment portion for adjusting a flow rate of air passing therethrough.
(Supplementary Note 10) The data center cooling device according to supplementary note 8 or 9, wherein the chimney-shaped exhaust duct is provided so as to penetrate the data center.

(Appendix 11) The room is located on the lower floor of the building,
11. The data center cooling device according to appendix 7 or 10, wherein the chimney-shaped exhaust duct is an elevator shaft of an elevator that penetrates to the roof of the building.
(Additional remark 12) The said air flow rate adjustment part is provided in the said inside air discharge part,
10. The data center cooling device according to appendix 2 or 9, wherein the air flow rate control unit prevents air from flowing from the elevator shaft into the second air conditioning chamber.
(Supplementary note 13) In Supplementary note 9 or 10, wherein an air conditioning room corresponding to the second air conditioning room in a room above the data center is connected to the elevator shaft using another communication passage. The data center cooling device described.

1 room 2 floor 3 information equipment (IT equipment)
4 Outside air introduction part 5 Ceiling 6 Inside air discharge part 7 Chimney exhaust duct (elevator shaft)
9 Bypass duct 11 1st air-conditioning room 12 2nd air-conditioning room 20 Air conditioner 30 Container 50 Building

Claims (5)

A data center cooling device,
A first air-conditioning chamber that is provided under a floor where a plurality of information devices are installed, includes an outside air introduction unit for taking in outside air, and is connected to an air intake port of the information device;
A second air outlet provided on the ceiling of the data center, connected to the air outlet of the information device, and for discharging the air discharged from the air outlet to the outside of the data center; With air conditioning room,
The cooling apparatus for a data center, wherein the inside air discharge portion is connected to a side surface of a chimney-shaped exhaust duct.   The data center cooling device according to claim 1, wherein an air flow rate adjusting unit for adjusting a flow rate of air passing through is provided in at least one of the outside air introduction unit and the inside air discharge unit. A data center cooling device,
A first air conditioning room provided under the floor of a room in which a plurality of information devices are installed, and provided with a vent hole communicating with the room;
A second air conditioning room provided on the ceiling of the room, comprising an outside air introduction part for taking in outside air, an opening communicating with the room, and an inside air discharge part for discharging air flowing in from the opening to the outside of the room When,
A bypass duct communicating the first air-conditioning chamber and the second air-conditioning chamber; and the second air-conditioning chamber which is provided in the bypass duct and sucks air from the first air-conditioning chamber and adjusts the temperature. And an air conditioner for discharging
A cooling apparatus for a data center, wherein the inside air discharge part is connected to a side surface of a chimney-like exhaust duct. The data center is located on the lower floor of the building,
4. The data center cooling device according to claim 1, wherein the chimney-shaped exhaust duct is an elevator shaft of an elevator that penetrates to the roof of the building. 5. The air flow rate adjusting unit is provided in the inside air discharge unit,
5. The data center cooling apparatus according to claim 4, wherein the air flow rate control unit prevents air from flowing from the elevator shaft into the second air conditioning chamber. 6.

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