JP2010086450A - Cooling system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To cool a heating element with high cooling efficiency. <P>SOLUTION: The cooling system is provided with: a plurality of sending devices for introducing cool air discharged from an air conditioner into a plurality of containers, a measuring instrument for measuring temperatures of each of the plurality of containers, and a control device for controlling a flow rate of the cool air introduced to each of the plurality of containers on the basis of the temperatures of the plurality of containers. The cooling system may be further provided with an access floor having a plurality of openings each corresponding to the plurality of containers to form an air chamber for accumulating the cool air discharged from the air conditioner, and a plurality of adjusting devices for adjusting apertures of the plurality of openings. The plurality of sending devices may introduce the cool air accumulated in the air chamber from each of the plurality of openings into the plurality of containers. The control device may control the flow rate of the cool air to be sent out to each of the plurality of containers by controlling each of the apertures of the plurality of containers. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a cooling system for cooling a heating element housed in a container.

A technique for cooling a heating element such as a server by introducing cold air is disclosed. For example, Patent Literature 1 describes an air conditioning system in which a local cooling device that takes in high-temperature air in an upper space of an equipment room and locally cools a rack is arranged.
JP 2003-166729 A

  However, in the conventional technology, the cool air generated from an air conditioner or the like cannot be used efficiently because the cool air for cooling is mixed with the indoor air. Therefore, a cooling system capable of cooling a heating element such as a server with high cooling efficiency is demanded.

  In order to solve the above-mentioned problem, the cooling system according to the first aspect of the present invention is a cooling system for cooling a heating element housed in a container, and contains a plurality of cool air discharged from an air conditioner. Introduced into each of the plurality of containers based on the temperature of each of the plurality of delivery devices to be introduced into each of the containers, the measuring device for measuring the temperature of each of the plurality of containers, and the plurality of containers. And a control device for controlling the flow rate of the cool air.

  In the above cooling system, an access floor having a plurality of openings corresponding to each of the plurality of containers, and forming an air chamber for storing the cool air discharged from the air conditioner, and a plurality of adjusting the opening degrees of the plurality of openings, respectively. And the plurality of delivery devices may introduce the cold air stored in the air chamber into each of the plurality of containers from each of the plurality of openings, and control the plurality of delivery devices. The apparatus may control the flow rate of the cold air introduced into each of the plurality of containers by controlling the degree of opening of the plurality of openings based on the temperature of each of the plurality of containers.

  In the above cooling system, the plurality of delivery devices introduces the cold air stored in the air chamber into each of the plurality of containers from each of the plurality of openings, and a plurality of fans corresponding to each of the plurality of containers. The control device may further control the amount of cold air introduced into each of the plurality of fans based on the temperature of each of the plurality of containers.

  In the cooling system, the plurality of delivery devices introduce a plurality of airflows corresponding to each of the plurality of containers, each of which introduces cold air stored in the air chamber into each of the plurality of containers using compressed compressed air. An amplifier may be included, and the control device may further control the amount of cold air introduced into each of the plurality of airflow amplifiers based on the temperature of each of the plurality of containers.

  The cooling system may further include a storage device that stores compressed air. When the plurality of delivery devices detect that the supply of electrical energy to the air conditioner has been stopped, the compression devices stored in the storage device Cold air stored in the air chamber may be introduced into each of the plurality of containers using air.

  In the cooling system, the measuring device may have a plurality of exhaust temperature measuring devices corresponding to each of the plurality of containers that measure the exhaust temperatures of the plurality of containers, and the control device may be a heating element. The flow rate at which the exhaust temperature measuring device can directly measure the exhaust temperature of the container when it detects that the operation of the engine has stopped, the opening degree corresponding to the container containing the stopped heating element In addition, it may be controlled so that the flow rate of the cold air can be maintained.

  In the cooling system, the measurement device may further include a plurality of intake air temperature measurement devices corresponding to each of the plurality of containers for measuring the intake air temperatures of the plurality of containers, and the control device includes a plurality of control devices. The flow rate of the cool air introduced into each of the plurality of containers may be controlled based on the exhaust temperature of each of the containers and the intake air temperature of the plurality of containers.

  The above summary of the invention does not enumerate all the necessary features of the present invention, and sub-combinations of these feature groups can also be the invention.

  Hereinafter, the present invention will be described through embodiments of the invention. However, the following embodiments do not limit the invention according to the scope of claims, and all combinations of features described in the embodiments are included. It is not necessarily essential for the solution of the invention.

  FIG. 1 shows an example of a system configuration of a cooling system according to the embodiment. In FIG. 1, a plurality of racks 100 as examples of containers are arranged in the machine room 10. Each of the plurality of racks 100 accommodates a server as an example of a heating element.

  The machine room 10 is provided with a cooling system that cools the server accommodated in the rack 100. The cooling system corresponds to each of the air conditioner 110, the access floor 120, the plurality of delivery devices 130, the plurality of adjustment devices 140, the plurality of intake air temperature measuring devices 151 corresponding to the plurality of racks 100, and the plurality of racks 100, respectively. A plurality of exhaust temperature measuring devices 152 and a control device 160 are included.

  The air conditioner 110 discharges cold air. The access floor 120 forms an air chamber 124 in the machine room 10. The air chamber 124 stores the cold air discharged from the air conditioner 110. The access floor 120 has a plurality of openings 122 corresponding to each of the plurality of racks 100. For example, the access floor 120 includes a plurality of floor panels. The access floor 120 can change the position of each of the plurality of openings 122 according to the position of the plurality of racks 100 by changing the combination of the plurality of floor panels.

  The access floor 120 may have a portion that does not have a floor panel as the opening 122, and may have an opening formed in the floor panel as the opening 122. Each of the plurality of openings 122 included in the access floor may have a shape and a size corresponding to the heat generation amount of the corresponding rack 100.

  The plurality of delivery devices 130 introduce the cold air discharged from the air conditioner 110 into each of the plurality of racks 100. Specifically, the plurality of delivery devices 130 introduce cold air stored in the air chamber 124 into each of the plurality of racks 100 from each of the plurality of openings 122. The plurality of delivery devices 130 have a plurality of fans 132. The plurality of fans 132 introduce the cold air stored in the air chamber 124 into each of the plurality of racks 100 from each of the plurality of openings 122.

  The plurality of adjusting devices 140 adjust the opening degrees of the plurality of openings 122, respectively. For example, a volume damper, a shutter, or the like is used for the adjustment device 140. The adjusting device 140 may be incorporated in the floor panel, or may be incorporated in a place other than the floor panel, such as a rack mount or a rack 100. In these cases, the adjusting device 140 can be easily provided.

  The plurality of intake air temperature measuring devices 151 measure the intake air temperature of each of the plurality of racks 100. The intake air temperature here means the temperature of the air before being heated by the server regardless of inside or outside of the rack 100. For example, the intake air temperature measuring device 151 is provided in the vicinity of the intake port of the rack.

  The plurality of exhaust temperature measuring devices 152 measure the exhaust temperature of each of the plurality of racks 100. The exhaust temperature here means the temperature of the air heated by the server regardless of the inside or outside of the rack 100. For example, the exhaust temperature measuring device 152 is provided in the vicinity of the exhaust port of the rack. For example, the intake air temperature measuring device 151 and the exhaust gas temperature measuring device 152 use temperature sensors that output an electrical signal corresponding to the detected temperature.

  The control device 160 controls the flow rate of the cold air introduced into each of the plurality of racks 100 based on the temperature of each of the plurality of racks 100. Specifically, the control device 160 controls the flow rate of the cold air introduced into each of the plurality of racks 100 based on the exhaust temperature of each of the plurality of racks 100. For example, when the control device 160 detects that the temperature of the rack 100 has risen, the control device 160 may increase the flow rate of the cold air introduced into the rack 100. On the other hand, when the controller 160 detects that the temperature of the rack 100 has dropped, the controller 160 may reduce the flow rate of the cool air introduced into the rack 100. The control device 160 may control the flow rate of the cool air introduced into each of the plurality of racks 100 based further on the intake air temperature of each of the plurality of racks 100.

  The control device 160 controls the flow rate of the cold air introduced into each of the plurality of racks 100 by controlling the degree of opening of the plurality of openings 122. The control device 160 may control the flow rate of the cold air introduced into each of the plurality of racks 100 by further controlling each of the plurality of fans 132. For example, the control device 160 may control the flow rate of the cold air introduced into each of the plurality of racks 100 by further controlling the rotational speed and the start of stop of rotation of each of the plurality of fans 132.

  The control device 160 further controls stop and start of introduction of cold air to each of the plurality of racks 100. Specifically, the control device 160 stops or starts the introduction of cold air to at least one rack 100 based on the temperature of each of the plurality of racks 100. For example, the control device 160 stops the introduction of the cold air to the rack 100 where the temperature of the rack 100 has not reached the preset temperature. In addition, the control device 160 starts introducing cool air into the rack 100 when the temperature of the rack 100 reaches a preset temperature.

  In this case, the stop temperature and the start temperature may be the same temperature or different temperatures. Further, the stop temperature and the start temperature may be different for each rack 100. The control device 160 may cause the user to set a stop temperature and a start temperature for each rack 100. Furthermore, the control device 160 may cause the user to update the stop temperature and start temperature for each rack 100.

  The control device 160 may control the stop and start of the introduction of cold air to the rack 100 based on the operating state of the servers accommodated in the rack 100. For example, when it is detected that the operation of the server is stopped, the control device 160 stops the introduction of the cold air to the rack 100 that accommodates the server whose operation is stopped. In this case, the control device 160 may stop the introduction of the cool air to the rack 100 when a preset time has elapsed since the operation of the server was stopped. In another example, the control device 160 may stop introducing cool air to the rack 100 when the temperature of the rack 100 becomes equal to or lower than a preset temperature after the server operation is stopped.

  Further, when the control device 160 detects that the operation of the server has started, the control device 160 starts introducing cold air into the rack 100 that houses the server that has started the operation. In this case, the control device 160 may start introducing cool air into the rack 100 when a preset time has elapsed since the start of the server operation. In another example, the control device 160 may start introducing cool air into the rack 100 when the temperature of the rack 100 becomes equal to or higher than a preset temperature after the server operation is started.

  The control device 160 controls the stop and start of the introduction of cold air to the rack 100 by controlling the adjusting device 140 corresponding to the rack 100. Specifically, the control device 160 controls the adjustment device 140 corresponding to the rack 100 and closes the opening 122 corresponding to the rack 100, thereby stopping the introduction of cold air to the rack 100. In addition, the control device 160 controls the adjustment device 140 corresponding to the rack 100 to open the opening 122 corresponding to the rack 100, thereby starting introduction of cool air into the rack 100.

  The control device 160 may stop the introduction of the cold air to the rack 100 by further controlling the delivery device 130 corresponding to the rack 100. For example, the control device 160 may stop introducing cold air to the rack 100 by further stopping the operation of the delivery device 130 corresponding to the rack 100. Further, the control device 160 may start introducing cold air into the rack 100 by further starting the operation of the delivery device 130 corresponding to the rack 100.

  According to the cooling system of the present embodiment, by controlling the plurality of delivery devices 130 and the plurality of adjusting devices 140 corresponding to the plurality of racks 100, the cool air discharged from the air conditioner 110 is changed to the plurality of racks 100. The configuration introduced in each of the above is used. Further, a configuration is used in which the flow rate of cool air introduced into each of the plurality of racks 100 is controlled based on the temperature of each of the plurality of racks 100. Thereby, it is possible to stably supply cold air for cooling the rack 100 to each of the plurality of racks 100 according to the temperature of the rack 100, that is, the amount of heat generated.

  Moreover, according to the cooling system of this embodiment, the structure which stores the cold air discharged from the air conditioner 110 in the air chamber 124 is used. In addition, a configuration is used in which cool air stored in the air chamber 124 is introduced into each of the plurality of racks 100 from each of the plurality of openings 122 corresponding to the plurality of racks 100. Thus, according to the cooling system of the present embodiment, by providing the access floor 120, the cool air and the warm air in the machine room 10 can be completely separated, so that the cooling efficiency of the plurality of racks 100 by the cool air can be further improved. Can be increased.

  In addition, according to the cooling system of the present embodiment, the configuration in which the cool air is prevented from being introduced from the air chamber 124 by closing the opening 122 corresponding to the rack 100 that does not require cooling is used. Yes. Thereby, the utilization efficiency of the cold air stored in the air chamber 124 can be further increased.

  Further, according to the cooling system of the present embodiment, a configuration is used in which the cool air stored in the air chamber 124 is directly supplied from the bottom surface of the rack 100 to the inside of the rack 100. Thereby, since it is not necessary to provide a cooling space in front of the rack, the space of the machine room 10 can be used effectively, and the cooling efficiency of the rack 100 by cold air can be further increased.

  When detecting that the operation of the server has stopped, the control device 160 may not completely close the opening 122 corresponding to the rack 100 that houses the stopped server. For example, the control device 160 sets the opening degree of the opening 122 corresponding to the rack 100 that accommodates the server whose operation is stopped to a flow rate at which the exhaust temperature measuring device 152 can directly measure the exhaust temperature of the rack 100. You may control so that the flow volume of cold air can be maintained. Thereby, since the exhaust temperature measuring device 152 can accurately measure the temperature of the rack 100, the cooling system can appropriately control the temperature in the rack 100.

  The cooling system may further include a plurality of adjusting devices 140 or a plurality of delivery devices 130 for one rack 100. For example, when a plurality of spaces for accommodating servers are formed in the rack 100, a plurality of adjusting devices 140 or a plurality of sending devices 130 corresponding to each of the plurality of spaces may be further provided. In this case, you may further provide the some measuring apparatus which measures each temperature of several spaces. And the control apparatus 160 may control the flow volume of the cold air introduce | transduced into each of several space based on each temperature of several space. In this case, the temperature in the space can be appropriately controlled for each of the plurality of spaces according to the temperature in the space, that is, the amount of heat generation.

  Further, the cooling system may be configured such that a part of the racks 100 is not provided with the corresponding delivery device 130. For example, the cooling system may control the flow rate of the cool air introduced into the rack 100 with the corresponding adjustment device 140 without providing the corresponding delivery device 130 for the rack 100 with a low calorific value.

  Further, the cooling system may use a configuration in which the corresponding adjustment device 140 is not provided for some of the racks 100. For example, the cooling system is not provided with the corresponding delivery device 130 for the rack 100 provided in a place where the adjustment device 140 is difficult to install, such as the existing rack 100, and the corresponding delivery device 130 The flow rate of the cold air introduced into the rack 100 may be controlled.

  FIG. 2 shows another example of the system configuration of the cooling system according to the embodiment. The cooling system shown in FIG. 2 is different from the system configuration of the cooling system shown in FIG.

  The monitoring terminal 200 controls a plurality of control devices 160 corresponding to the plurality of racks 100, respectively. For example, the monitoring terminal 200 sets a recommended temperature for each of the plurality of control devices 160. In this case, each of the plurality of control devices 160 may control the flow rate of the cold air introduced into the corresponding rack 100 so that the temperature of the corresponding rack 100 is maintained within the set recommended temperature range. Good.

  The monitoring terminal 200 may use the server installation environment temperature designated by the manufacturer of the server accommodated in the rack as the recommended temperature. The monitoring terminal 200 may further set a stop temperature for stopping the introduction of the cool air to the rack 100 and a start temperature for starting the introduction of the cool air to the rack 100 for each of the plurality of control devices 160.

  The monitoring terminal 200 further controls the air conditioner 110. Specifically, the monitoring terminal 200 controls the temperature of the cool air discharged from the air conditioner 110, the discharge amount, and the stop start of the air conditioner 110 based on the temperature of each of the plurality of racks 100. For example, when the monitoring terminal 200 determines that the temperature of the rack 100 cannot be maintained within the recommended temperature range even though the flow rate of the cool air introduced into the rack 100 is the maximum, the air conditioner 110 discharges the air. The temperature of the cool air may be lowered, or the amount of cool air discharged by the air conditioner 110 may be increased. In this case, the monitoring terminal 200 may control the delivery device 130 and the adjustment device 140 corresponding to the other rack 100 so that the temperature of the other rack 100 does not fall below the recommended temperature range. When the monitoring terminal 200 determines that the temperature of the rack 100 can be maintained within the recommended temperature range, the temperature of the cool air discharged by the air conditioner 110 may be increased, or the cool air discharged by the air conditioner 110 may be increased. The discharge amount may be reduced.

  The cooling system may include a plurality of air conditioners 110. In this case, the monitoring terminal 200 may control each of the plurality of air conditioners 110. Specifically, the monitoring terminal 200 may control the cold air temperature, the discharge amount, and the air conditioner stop start of each of the plurality of air conditioners 110 based on the temperature of each of the plurality of racks 100. For example, when the monitoring terminal 200 wants to cool a part of the racks 100, the monitoring terminal 200 selects the optimum air conditioner 110 for efficiently cooling the part of the racks 100, and the cooling air discharged by the selected air conditioner 110 is selected. The temperature may be lowered, or the amount of cool air discharged by the selected air conditioner 110 may be increased.

  At a plurality of different timings, the monitoring terminal 200 can detect the temperatures of the plurality of racks 100, the control information of the plurality of delivery devices 130, the control information of the plurality of adjustment devices 140, the control information of the air conditioner 110, and the like. By recording various information in a storage device such as a hard disk, time-series data of these information may be accumulated.

  FIG. 3 shows another example of the system configuration of the cooling system according to the embodiment. The machine room 10 shown in FIG. 3 is different from the machine room 10 shown in FIG. 2 in that a main frame rack 100 is further arranged.

  The cooling system further includes a delivery device 130, an adjustment device 140, an intake air temperature measurement device 151, an exhaust gas temperature measurement device 152, and a control device 160 corresponding to the main frame rack 100. The access floor 120 further has an opening 122 corresponding to the main frame rack 100. A partition wall 126 is provided in the air chamber 124. The partition wall 126 forms a first air chamber corresponding to the main frame installation area and a second air chamber corresponding to the server installation area in the air chamber 124, and moves from the second air chamber to the first air chamber. Limit the cool air outflow.

  The plurality of delivery devices 130 have a plurality of airflow amplifiers 134 corresponding to the plurality of racks 100, respectively. The plurality of airflow amplifiers 134 introduce the cold air stored in the air chamber 124 into each of the plurality of racks 100 using the compressed air compressed by the compressor 136. The control device 160 may control the flow rate of the cold air introduced into each of the plurality of racks 100 by further controlling each of the plurality of airflow amplifiers 134. For example, the control device 160 further controls the discharge amount of the compressed air and the start of stoppage of the discharge of the compressed air of each of the plurality of airflow amplifiers 134, thereby reducing the flow rate of the cold air introduced into each of the plurality of racks 100. You may control.

  For example, there are cases where the mainframe is stopped and the server is not stopped, such as at night. When the cooling system detects that the main frame is stopped, the cooling system stops the supply of cool air to the main frame rack 100. That is, when the cooling system detects that the main frame has been stopped, the cooling system supplies the cool air stored in the air chamber 124 only to the rack 100 that houses the operating server. Thereby, the cooling system can effectively use the cold air stored in the air chamber 124.

  Note that the cooling system may further control the partition wall 126 so that the cool air discharged from the air conditioner 110 does not flow into the first air chamber when detecting that the main frame is stopped. For example, the partition wall 126 may include the opening 122 and the adjusting device 140 that controls the opening degree of the opening 122. In this case, the cooling system can control the cool air discharged from the air conditioner 110 not to flow into the first air chamber by closing the opening 122 by controlling the adjustment device 140. Thereby, since the cooling system can store the cold air discharged from the air conditioner 110 only in the second air chamber, the discharge amount of the cold air discharged by the air conditioner 110 can be suppressed.

  The cooling system may further include a plurality of air conditioners 110 corresponding to each of the first air chamber and the second air chamber. In this case, the cooling system may stop the air conditioner 110 corresponding to the first air chamber when detecting that the main frame is stopped. Thereby, the cooling system can cool the plurality of racks 100 with a lesser amount of electric power. As described above, the cooling system according to the embodiment may be used for the purpose of cooling a heating element other than the server.

  FIG. 4 shows another example of the system configuration of the cooling system according to the embodiment. The machine room 10 shown in FIG. 4 is different from the machine room 10 shown in FIG. 2 in that a plurality of existing racks 100 are further arranged.

  The cooling system includes a plurality of delivery devices 130, a plurality of adjustment devices 140, a plurality of intake air temperature measurement devices 151, a plurality of exhaust temperature measurement devices 152, and a plurality of control devices corresponding to each of a plurality of newly installed racks 100. 160. Access floor 120 has a plurality of openings 122 corresponding to each of a plurality of newly installed racks 100.

  Similarly, the cooling system includes a plurality of delivery devices 130, a plurality of adjustment devices 140, a plurality of intake air temperature measuring devices 151, a plurality of exhaust temperature measuring devices 152, and a plurality of devices corresponding to each of a plurality of existing racks 100. A control device 160 is included. Similarly, the access floor 120 has a plurality of openings 122 corresponding to each of a plurality of existing racks 100.

  The plurality of delivery devices 130 corresponding to each of the plurality of newly installed racks 100 includes a plurality of airflow amplifiers 134. On the other hand, the plurality of delivery devices 130 corresponding to each of the plurality of existing racks 100 have a plurality of fans 132.

  An opening is formed in the bottom surface of the newly installed rack 100. Therefore, the cooling system can directly supply the cool air stored in the air chamber 124 to the newly installed rack 100 from the bottom opening of the rack 100.

  On the other hand, no opening is formed on the bottom surface of the existing rack 100. For this reason, the cool air stored in the air chamber 124 cannot be directly supplied to the existing rack 100. For such an existing rack 100, the cooling system introduces cold air from the air chamber 124 onto the access floor. Thereby, the existing rack 100 can take in the introduced cold air from the opening formed in the front surface of the side surface of the rack.

  Since the cool air introduced from the air chamber 124 onto the access floor is mixed with the warm air on the access floor, the cooling efficiency for the existing rack 100 is lower than the cooling efficiency for the new rack 100. However, the cooling system of this embodiment can control the flow rate of the cool air introduced into the rack 100 based on the temperature of the rack 100 even for the existing rack 100. For this reason, it is possible to stably supply cold air necessary for cooling the rack 100 to the existing rack 100 according to the temperature of the rack 100, that is, the heat generation amount. Further, by increasing the flow rate of the cool air supplied to the existing rack 100, the cool air ventilation space in front of the existing rack 100 can be reduced in size, so that the space of the machine room 10 can be used effectively.

  The cooling system may further include an introduction member such as a duct that directly introduces the cold air introduced from the air chamber 124 onto the access floor to the opening of the existing rack 100. As a result, the cool air introduced from the air chamber 124 onto the access floor can be supplied to the existing rack 100 without being mixed with the warm air on the access floor, so that the cooling efficiency for the existing rack 100 is further increased. be able to. Thus, the cooling system according to the embodiment may be used for the purpose of cooling the server accommodated in the existing rack 100.

  FIG. 5 shows an example of the configuration of the sending device 130, the adjusting device 140, and the rack 100. The delivery device 130 includes a fan 132 that introduces cold air stored in the air chamber 124 through the opening 122. The adjusting device 140 adjusts the opening degree of the opening 122.

  The rack 100 has a partition wall 500. The partition wall 500 forms an intake space 510 and a server storage space 520 in the rack 100. A plurality of openings 502 are formed in the partition wall 500. The plurality of openings 502 may be formed corresponding to the positions of the intake ports of the plurality of servers. The partition wall 500 and the opening 502 may be provided in the rack 100 in advance, and the front panel of the server accommodated in the rack 100 may perform a part or all of the functions of the partition wall 500 and the opening 502.

  A plurality of servers are accommodated in the server accommodation space 520. An opening 524 for wiring is formed on the bottom surface of the server storage space 520. The opening 524 is preferably closed by a putty or the like so that air in the server accommodation space 520 does not leak after wiring.

  An opening 512 is formed on the bottom surface of the intake space 510. Cold air introduced from the air chamber 124 through the opening 122 is introduced into the intake space 510 from the opening 512. An intake air temperature measuring device 151 is provided in the intake space 510. The intake air temperature measuring device 151 measures the temperature of the cold air in the intake space 510 as the intake air temperature. The cool air introduced into the intake space 510 is introduced into the server accommodation space 520 through the opening 502. Thereby, the server accommodated in the server accommodation space 520 is cooled. The intake air temperature measuring device 151 is not limited to one, and a plurality of intake air temperature measuring devices 151 may be provided.

  A plurality of openings 522 are formed on the back surface of the server accommodation space 520. The plurality of openings 522 may be formed corresponding to the positions of the exhaust ports of the plurality of servers. The air heated by the server is discharged from the opening 522 to the outside of the rack 100. An exhaust temperature measuring device 152 is provided on the back surface of the server storage space 520. The exhaust temperature measuring device 152 measures the temperature of the air discharged from the opening 522 as the exhaust temperature. The exhaust temperature measuring device 152 is not limited to one, and a plurality of exhaust temperature measuring devices 152 may be provided.

  The control device 160 controls the rotation amount of the fan 132 and the opening degree of the opening 122 based on the intake air temperature measured by the intake air temperature measuring device 151 and the exhaust gas temperature measured by the exhaust gas temperature measuring device 152. Thereby, the control device 160 controls the flow rate of the cold air introduced from the air chamber 124.

  The intake space 510 preferably has a sealed structure in which air does not leak from a portion other than the opening 502. Similarly, the server accommodation space 520 preferably has a sealed structure in which air does not leak from portions other than the opening 522. Thereby, the cooling efficiency by the cold air introduced from the air chamber 124 can be further increased. Moreover, the soundproofing effect of the noise emitted by the server can be enhanced.

  FIG. 6 shows another example of the configuration of the sending device 130, the adjusting device 140, and the rack 100. The configuration shown in FIG. 6 is different from the configuration shown in FIG. 5 in that an airflow amplifier 134 is provided instead of the fan 132. The airflow amplifier 134 introduces cold air stored in the air chamber 124 from the opening 122 using the compressed air compressed by the compressor 136.

  Specifically, the airflow amplifier 134 generates negative pressure from the opening 122 to the rack 100 by discharging compressed air from the opening 122 toward the rack 100. The cool air stored in the air chamber 124 is introduced from the opening 122 due to the generated negative pressure.

  Based on the intake air temperature measured by the intake air temperature measurement device 151 and the exhaust gas temperature measured by the exhaust gas temperature measurement device 152, the control device 160 starts the discharge amount of the airflow amplifier 134, the discharge stop, and the opening of the opening 122. Control the degree. Thereby, the control device 160 controls the flow rate of the cold air introduced from the air chamber 124.

  For example, if it is necessary to supply approximately 70 cubic meters of air per minute to a blade server system, approximately 8 600 square millimeter floor panels are required to meet this requirement without the delivery device 130. A minute opening 122 is required on the front of the rack. Further, when the delivery device 130 having the fan 132 is provided, it is necessary to use at least the fan 132 having a diameter of 40 cm.

  On the other hand, when it is set as the structure which provides the delivery apparatus 130 which has the airflow amplifier 134, for example, using the airflow amplifier 134 which has a height of 51 mm, a width of 38 mm, a length of 200 mm and an amplification factor of 50 times The above requirement can be satisfied by causing the air flow amplifier 134 to discharge approximately 1.4 cubic meters of compressed air per minute.

  Thus, by providing the airflow amplifier 134 instead of the fan 132, more cold air can be supplied to the rack 100. Further, as compared with the case where the fan 132 is provided, there are advantages that the area of the opening 122 can be reduced, the cost is low, the failure is small, the maintenance is easy, the noise is low, and the control is easy.

  The delivery device 130 may further include a storage device such as a tank that stores the cold air compressed by the compressor 136. When the delivery device 130 detects that the supply of electrical energy to the air conditioner 110 is stopped due to a power failure or the like, the delivery device 130 uses the compressed air stored in the storage device to store the cold air stored in the air chamber 124. It may be introduced into the rack 100. At a minimum, the cooling system may further include a standby power source for causing the controller 160 to control the airflow amplifier 134.

  The storage device operates at least from the time of the occurrence of a power failure until the server shuts down, until the device that supplies electrical energy to the air conditioner 110 switches from the main power source to the standby power source, or the server continues to operate with the standby power source. In the meantime, it is preferable to have a capacity capable of storing an amount of compressed air that can continue to supply cool air to the rack 100.

  FIG. 7 shows another example of the configuration of the delivery device 130, the adjustment device 140, and the rack 100. The configuration shown in FIG. 7 is different from the configuration shown in FIG. 6 in that an exhaust space 530 is provided in the rack 100.

  Specifically, the rack 100 further includes a partition wall 504. The partition wall 504 forms an exhaust space 530 in the rack 100. An opening 532 is formed on the upper surface of the exhaust space 530. The air heated by the server in the server accommodation space 520 is discharged from the opening 522 to the exhaust space 530. The air discharged to the exhaust space 530 is discharged from the opening 532 to the outside of the rack 100.

  The cooling system may further include an introduction member such as a duct that directly introduces the air discharged from the opening 532 to the air conditioner 110. Thereby, since the air discharged from the opening 532 is not mixed with the air on the access floor, the rack 100 can be installed even in a space that is easily affected by the heat generated by the server.

  The exhaust space 530 preferably has a sealed structure in which air does not leak from a portion other than the opening 532. Thereby, the discharge efficiency of the air discharged from the rack 100 can be further increased. Moreover, the soundproofing effect of the noise emitted by the server can be enhanced.

  As mentioned above, although this invention was demonstrated using embodiment, the technical scope of this invention is not limited to the range as described in the said embodiment. It will be apparent to those skilled in the art that various modifications or improvements can be added to the above-described embodiment. It is apparent from the scope of the claims that the embodiments added with such changes or improvements can be included in the technical scope of the present invention.

An example of the system configuration | structure of the cooling system which concerns on embodiment is shown. The other example of the system configuration | structure of the cooling system which concerns on embodiment is shown. The other example of the system configuration | structure of the cooling system which concerns on embodiment is shown. The other example of the system configuration | structure of the cooling system which concerns on embodiment is shown. An example of the configuration of the sending device 130, the adjusting device 140, and the rack 100 is shown. Another example of the configuration of the sending device 130, the adjusting device 140, and the rack 100 is shown. Another example of the configuration of the sending device 130, the adjusting device 140, and the rack 100 is shown.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Machine room 100 Rack 110 Air conditioner 120 Access floor 122 Opening 124 Air chamber 126 Bulkhead 130 Delivery device 132 Fan 134 Airflow amplifier 136 Compressor 140 Adjustment device 151 Intake air temperature measurement device 152 Exhaust temperature measurement device 160 Control device 200 Monitoring terminal 500 Bulkhead 502 Opening 504 Partition 510 Intake space 512 Open 520 Server storage space 522 Open 524 Open 530 Exhaust space 532 Open

Claims (7)

A cooling system for cooling a heating element housed in a container,
A plurality of delivery devices for introducing cold air discharged from an air conditioner into each of the plurality of containers;
A measuring device for measuring the temperature of each of the plurality of containers;
A control system that controls a flow rate of the cold air introduced into each of the plurality of containers based on the temperature of each of the plurality of containers. An access floor having a plurality of openings corresponding to each of the plurality of containers, and forming an air chamber for storing cold air discharged from the air conditioner;
A plurality of adjusting devices that respectively adjust the degree of opening of the plurality of openings;
The plurality of delivery devices introduce the cold air stored in the air chamber into each of the plurality of containers from each of the plurality of openings,
The control device controls the flow rate of the cold air introduced into each of the plurality of containers by controlling the degree of opening of the plurality of openings based on the temperature of each of the plurality of containers. The cooling system according to claim 1. The plurality of delivery devices introduce the cold air stored in the air chamber from each of the plurality of openings to each of the plurality of containers, and each of the plurality of containers corresponds to each of the plurality of containers. Have a fan,
The cooling system according to claim 2, wherein the control device further controls the introduction amount of the cold air of each of the plurality of fans based on the temperature of each of the plurality of containers. The plurality of delivery devices introduce a plurality of airflows corresponding to each of the plurality of containers, each of which introduces the cold air stored in the air chamber into each of the plurality of containers using compressed compressed air. Having an amplifier,
The cooling system according to claim 2, wherein the control device further controls the introduction amount of the cold air of each of the plurality of airflow amplifiers based on the temperature of each of the plurality of containers. A storage device for storing the compressed air;
When the plurality of delivery devices detect that the supply of electrical energy to the air conditioner is stopped, the cold air stored in the air chamber using the compressed air stored in the storage device The cooling system according to claim 4, wherein the cooling system is introduced into each of the plurality of containers. The measuring device has a plurality of exhaust temperature measuring devices corresponding to each of the plurality of containers, measuring the exhaust temperature of each of the plurality of containers.
When the control device detects that the operation of the heating element is stopped, the exhaust temperature measuring device stores the opening degree of the opening corresponding to the container that stores the stopped heating element. The cooling system according to any one of claims 2 to 5, wherein control is performed so that the flow rate of the cool air can be maintained at a flow rate at which the exhaust temperature of the vessel can be directly measured. The measuring device further includes a plurality of intake temperature measuring devices corresponding to each of the plurality of containers for measuring the intake temperature of each of the plurality of containers,
The control device controls a flow rate of the cold air introduced into each of the plurality of containers based on an exhaust temperature of each of the plurality of containers and an intake temperature of each of the plurality of containers. 6. The cooling system according to 6.

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