JP2012053747A - Containerized data center - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a containerized data center, in which energy efficiency and air conditioning efficiency in a container are improved and dew condensation in the container can be suppressed.SOLUTION: An equipment unit array 31 is composed of a racks 12 and indoor machines 25 which are arrayed such that the front faces 12a, 25a of each rack 12 and each indoor machine 25 face in the same direction while the back faces 12b, 25b of each rack 12 and each indoor machine 25 face in the same direction. A container 11 is configured in such a manner that the inside of a computer room 21 is partitioned by the equipment unit array 31 in a cold aisle 41 on the front side and a hot aisle 42 on the back side, and the exterior of the container 11 and the interior of the computer room 21 can be communicated with each other via the hot aisle.

Description

  The present invention relates to a container type data center.

2. Description of the Related Art In recent years, so-called container-type data centers have attracted attention, in which equipment-accommodating racks in which computers such as IT equipment and communication devices are accommodated are incorporated in general-purpose containers.
This container type data center can be transported by a freight train, a trailer, a ship, etc. in a state in which equipment racks are pre-installed in the container, and can be installed and expanded for each container. Therefore, there are merits such that installation in a short construction period is possible, and it is not necessary to construct a large-scale center facility from the beginning, and by installing in units of containers, split investment is possible.

  In addition, an air conditioning system for adjusting the air flow and temperature around the computer accommodated in the equipment accommodation rack is provided in the container, and IT equipment installed in the container by this air conditioning system. The intake air temperature is kept relatively low.

Japanese Patent Laid-Open No. 7-10184

  By the way, in the above-described container type data center, for example, when performing maintenance or the like, an operator needs to open the container door and enter the container. At this time, if air with a high dew point flows into the container, such as when the environment outside the container is highly humid or raining, there is a risk of condensation on the surface of the equipment housing rack.

Here, Patent Document 1 describes a configuration in which a blower is operated and the blower is forcibly ventilated based on the prediction result by the dew condensation prediction means in order to suppress dew condensation inside the container during transportation. Yes.
However, Patent Document 1 only describes measures against dew condensation inside the container at the time of transportation, and no measures are taken for going back and forth inside and outside the container with the container installed like a container type data center. Not listed.
Moreover, in a container type data center, it is desired to suppress power consumption of the entire data center and improve efficiency by suppressing power other than the computer (power of auxiliary equipment). Therefore, there is a request that it is not desired to mount auxiliary equipment such as a blower as much as possible. On the other hand, in order to operate IT equipment stably, the temperature and humidity environment inside the container needs to be kept within a certain range, and even when an operator enters or leaves, it is not allowed to deviate from the range.

  Therefore, the present invention has been made in view of the above circumstances, and aims to provide a container type data center capable of suppressing condensation in a container while improving air conditioning efficiency and energy efficiency in the container. And

In order to solve the above problems, the present invention proposes the following means.
That is, the container-type data center according to the present invention is disposed in a computer room configured inside the container, and cools the air taken in from the back, and the equipment storage rack that exhausts air taken in from the front from the back. In the container type data center provided with an air conditioner that blows out from the front surface, the device accommodation rack and the air conditioner constitute a device unit row in which the directions of the front surface and the back surface are aligned with each other. The interior of the computer room is partitioned into a first space on the front side and a second space on the back side across the device unit row, and the container is disposed on the second space side of the container. And an entrance that communicates the outside of the computer room with the inside of the computer room.

In the container-type data center having such characteristics, the air (cooling air) blown out from the front surface of the air conditioner into the first space (front side of the device unit row) is stored in the device storage rack in the first space. Captured from the front. Then, the cooling air circulates in the equipment housing rack to cool the IT equipment mounted in the equipment housing rack, and then becomes hot air from the back of the equipment housing rack to the second space (equipment). It is discharged to the rear side of the unit row. Then, the air discharged into the second space is taken into the air conditioner in the second space, cooled in the air conditioner, and then blown into the first space again as cooling air.
In this way, by arranging the equipment housing rack and the air conditioner so that the directions of the front and back of each other are aligned, the first space in which the cooling air circulates and the second in which the hot air circulates in the computer room. It can be divided into spaces. Thereby, while the flow of the air-conditioning air in a computer room can be made smooth, it can suppress that the warm air which distribute | circulates 2nd space mixes in the 1st space, Therefore The air-conditioning efficiency in a computer room can be improved.
Here, since the temperature on the second space side is higher than the temperature on the first space side, the second space has a larger amount of saturated water vapor than the first space. Therefore, by providing an entrance on the second space side that communicates the outside of the container and the inside of the computer room, when the air enters the computer room (second space), outside air with a high dew point temporarily enters the computer room. Even in the case of inflow, condensation in the computer room can be suppressed. Note that even if the dew point of the second space exceeds the temperature of the first space, condensation occurs in the air conditioning system and is discharged as drain water, so that no condensation occurs in the first space.
In addition, since the condensation can be suppressed by changing the layout of the container, an increase in the power of the auxiliary equipment can be suppressed, unlike the case where the condensation is suppressed by using auxiliary equipment such as a blower as in the prior art. As a result, power consumption of the entire data center can be suppressed, and energy efficiency can be improved.

Further, in the container-type data center according to the present invention, the entrance / exit has a buffer chamber, and the buffer chamber enables communication between the buffer chamber and the computer room by a computer room door, while externally. The buffer chamber may communicate with the outside of the container through a door.
As a result, when air that has flowed into the buffer chamber from the outside of the container when the external door is opened flows into the computer chamber via the buffer chamber, the buffer chamber is buffered between the outside of the container and the computer chamber. Take the role of function. That is, air that has flowed into the buffer chamber from the outside of the container once stays in the buffer chamber, and then flows into the computer chamber after the sensible heat and latent heat are taken away in the buffer chamber and the dew point is lowered. . When the dew point of the outside air is higher than the temperature of the buffer chamber, the outside air flows into the computer room after the dew point is reduced due to condensation in the buffer chamber.
Thereby, even if it is a case where external air flows in into a computer room via a buffer room, dew condensation in a computer room can be suppressed.

In the container-type data center according to the present invention, the buffer chamber may be configured to communicate with the first space of the computer room via the computer room door.
Thereby, since the buffer chamber plays a role of a buffer function between the outside of the container and the computer room as described above, even if the computer room door is provided on the first space side, the first space Condensation can be suppressed.

In the container-type data center according to the present invention, the temperature and / or humidity in the computer room can be adjusted even when the computer room door is opened by adjusting the temperature and / or humidity in the buffer room. It may be possible to keep the environment constant.
This makes it possible to adjust the temperature / humidity environment of the buffer room, thereby suppressing the occurrence of condensation in the computer room over a wider range, and making the temperature / humidity environment in the computer room more constant. It becomes possible to keep on. Furthermore, it is possible to enter and exit the computer room even when the dew point outside the container is high or when there is rain.

Further, in the container type data center according to the present invention, the external condition detection means for detecting the presence or absence of rain outside the container or the dew point of the outside air, the temperature detection means for detecting the temperature in the computer room, Condensation determining means for determining whether or not there is a possibility of condensation in the computer room when the computer room door is opened based on the detection result by the external condition detecting means and the temperature detecting means, and the condensation determination A warning means for prompting a warning when the means determines that there is a risk of condensation may be provided.
Thereby, it is possible to quickly determine that there is a risk of condensation due to the inflow of outside air into the computer room before opening the computer room door, so that air with a high dew point is prevented from flowing into the computer room, Condensation in the computer room can be reliably suppressed.

In the container-type data center according to the present invention, dew point detecting means for detecting the dew point of the buffer chamber, and temperature detecting means for detecting the temperature in the first space or the second space communicating with the buffer chamber; The dew point determination means for determining whether or not there is a possibility of dew condensation in the computer room when the computer room door is opened based on the detection results by the dew point detection means and the temperature detection means; and the dew condensation A warning means that urges a warning when the determination means determines that there is a risk of condensation may be provided.
As a result, when entering the computer room through the buffer room, it is possible to quickly determine that there is a risk of condensation due to the air in the buffer room flowing into the computer room before opening the computer room door. In addition, it is possible to suppress air having a high dew point from flowing into the computer room and to reliably suppress dew condensation in the computer room.

In the container-type data center according to the present invention, the warning unit may include an alarm display unit that displays an alarm when the condensation determination unit determines that there is a possibility of condensation. .
Accordingly, by prompting a warning by an alarm display, it is possible to quickly notice that there is a possibility of condensation before opening the computer room door.

In the container-type data center according to the present invention, the warning means includes a lock means for locking the computer room door when the condensation determination means determines that there is a possibility of condensation. It is good as well.
Thus, by locking the computer room door, it is possible to reliably recognize that there is a possibility of condensation before opening the computer room door.

In the container-type data center according to the present invention, the inlet / outlet is open air that blocks inflow of outside air from the inlet / outlet to the computer room when the outside of the container communicates with the inside of the computer room. A blocking means may be provided.
Thereby, the dew condensation in the computer room can be reliably suppressed by blocking the intrusion of outside air into the computer room. Further, by operating the outside air blocking means only when the outside of the container communicates with the inside of the computer room, it is possible to suppress an increase in power of the auxiliary machinery.

  According to the container-type data center according to the present invention, it is possible to suppress condensation in the container while improving the air conditioning efficiency and energy efficiency in the container.

It is sectional drawing which looked at the container type data center in 1st Embodiment from upper direction. It is sectional drawing which looked at the container type data center in 1st Embodiment from the side. It is sectional drawing which looked at the container type data center in 2nd Embodiment from upper direction. It is a block diagram of a dew condensation suppression means. It is a flowchart for demonstrating the dew condensation suppression method in 2nd Embodiment. It is a flowchart for demonstrating the dew condensation suppression method in a 1st modification. It is a flowchart for demonstrating the dew condensation suppression method in a 2nd modification. It is a flowchart for demonstrating the dew condensation suppression method in a 3rd modification.

Next, embodiments of the present invention will be described with reference to the drawings.
(First embodiment)
(Container type data center)
FIG. 1 is a cross-sectional view of the container-type data center according to the present embodiment as viewed from above, and FIG. 2 is a cross-sectional view as viewed from the side. In the following description, in the horizontal plane, the longitudinal direction of the container, which will be described later, is defined as the X direction, the short direction (the width direction of the container) is defined as the Y direction, and the vertical direction is described as the Z direction.
As shown in FIG. 1, a container-type data center 10 according to this embodiment includes a rectangular parallelepiped container 11, a device storage rack 12 (hereinafter referred to as a rack 12) stored in the container 11, and an air conditioning system (air conditioning). Apparatus) 13 and the like. The container 11 is made of steel, aluminum, or the like, and a container 11 for freight transportation having a standardized outer shape can also be used.

  The container 11 has a so-called double floor structure in which a floor plate 15 is disposed with a space between the container 11 and the bottom wall 11a. The container 11 constitutes a computer room 21 in an internal space surrounded by the floor plate 15 and the top wall 11b.

In the computer room 21, various devices such as a rack 12, a distribution board 22, an air conditioning system 13, a UPS (uninterruptible power supply) 23, and an external power supply connection box 24 are laid out.
The rack 12 is formed in a box shape and accommodates IT equipment such as communication devices. The rack 12 supplies air from an air supply port (not shown) formed on the front surface 12a, and blows the supplied air backward from an exhaust port (not shown) on the back surface 12b.
The air conditioning system 13 includes an indoor unit 25, an outdoor unit 26, and a refrigerant pipe (not shown) that connects the indoor unit 25 and the outdoor unit 26. The indoor unit 25 is configured such that cooling air is blown out from the outlet of the front surface 25a, air flowing in the computer room 21 is sucked from the suction port of the rear surface 25b, cooled, and then blown out from the outlet. Has been. The outdoor unit 26 includes a condenser, a compressor (both not shown), and the like, and is configured to send high-pressure refrigerant to the indoor unit 25 side through a refrigerant pipe.

  Note that the UPS 23 is a device that incorporates a battery and a power converter and supplies electricity to the various devices described above in the event of a power failure such as an electrical power failure / instantaneous interruption, harmonic noise, or voltage fluctuation. In addition, power is supplied to various devices in the computer room 21 via the external power supply connection box 24.

Here, the layout of the various devices described above in the container 11 will be described.
First, the container-type data center 10 includes a plurality of racks 12, distribution boards 22, indoor units 25, and UPSs 23 among the various devices described above. These various devices are arranged in a line along the X direction so as to partition the computer room 21 in the Y direction. Specifically, the various devices are arranged in a state where the front surfaces of the devices are flush with each other and the side surfaces are in contact with each other, with the arrangement direction of the various devices in the X direction and the front-rear direction in the Y direction. ing. In this case, the equipment unit row 31 in which the rack 12, the distribution board 22, the indoor unit 25, and the UPS 23 are arranged is configured by arranging the distribution board 22, the indoor unit 25, and the UPS 23 for each of the plurality of racks 12. ing. A passage 32 is formed around the device unit row 31 arranged in this manner so as to surround the device unit row 31.

In the computer room 21, a pair of side shields that divide the computer room 21 between the front side and the back side of the device unit row 31 are arranged in the side (X direction) region of the device unit row 31. A partition member 33 is provided. These side shields 33 are made of curtains or the like extending from the top wall 11b of the container 11 to the floor plate 15, and shield the inside of the computer room 21 in the Y direction.
Further, in the computer room 21, the front side and the rear surface of the device unit row 31 are located above (in the Z direction) area of the device unit row 31 (between the upper surface of the device unit row 31 and the top wall 11 b of the container 11). An upper shield 34 that partitions the computer room 21 with the side is provided. Similar to the side shield 33, the upper shield 34 is configured by a curtain or the like extending from the top wall 11 b of the container 11 to the upper surface of the device unit row 31.

  That is, the computer room 21 of the present embodiment is partitioned by the device unit row 31, the side shield 33, and the upper shield 34 on the front side and the back side (Y direction) of the device unit row 31. . In this case, the front side of the equipment unit row 31 has an intake side space 41 (hereinafter referred to as a cold aisle) for sucking air blown out from the outlet of the indoor unit 25 (hereinafter referred to as cooling air A1) at the intake port of the rack 12. 41), and the back side of the equipment unit row 31 is an exhaust side space 42 (hereinafter referred to as a hot aisle 42) in which air (hereinafter referred to as hot air A2) circulated in each rack 12 is exhausted from an exhaust port Is configured. The shields 33 and 34 are configured to be openable and closable, and can be moved between the aisles 41 and 42 by opening the shields 33 and 34 during maintenance or the like.

  The external power supply connection box 24 described above is configured such that a cable or the like can be connected from the outside of the container 11.

  Further, in the container 11, an outdoor unit chamber 43 and a buffer chamber 44 are respectively provided on both sides in the X direction of the computer room 21 along the Y direction. In each outdoor unit room 43, the outdoor unit 26 of the air conditioning system 13 is installed, so that outside air can be taken in from the suction port of the outdoor unit 26 and exhausted from the outlet of the outdoor unit 26 to the outside. There is a hole communicating with the outside. In addition, each outdoor machine room 43 and the computer room 21 are isolated so that the exhaust from the outdoor unit 26 does not enter the computer room 21.

  The buffer chamber 44 is an entrance that communicates the inside of the computer room 21 with the outside of the container 11, and an external door 45 that allows the outside of the container 11 to communicate with the inside of the buffer chamber 44, the buffer chamber 44, and the hot aisle 42. And a computer room door 46 that can communicate with each other. The buffer chamber 44 is disposed between the hot aisle 42 and the outside of the container 11 and plays a role of preventing entry of dust and the like into the computer chamber 21.

  Further, an inlet / outlet (not shown) is formed on the side wall of the container 11 on the side of the hot aisle 42, and an external door 47 capable of communicating the outside of the container 11 with the inside of the computer room 21 (hot aisle 42) is formed at the entrance / exit. Is provided. At the time of maintenance, etc., one of the above-described external doors 45 and 47 is opened to allow entry into the hot aisle 42. As described above, in this embodiment, the doors 45 to 47 communicating with the container 11 (computer room 21) are not provided on the cold aisle 41 side but provided only on the hot aisle 42 side.

(Function)
Next, an operation method of the container type data center in this embodiment will be described. In the following description, air conditioning in the container 11 during normal operation after installation of the container-type data center 10 will be described.
Cooling air A <b> 1 blown out from the outlet of the front surface 25 a in the indoor unit 25 circulates in the cold aisle 41 and is taken into the rack 12 from the intake port of the front surface 12 a in each rack 12. The cooling air A1 taken into the rack 12 is heat exchanged with the IT equipment accommodated in the rack 12 while flowing in the rack 12 along the front-rear direction (Y direction). Cool IT equipment. The cooling air A <b> 1 is exhausted as hot air A <b> 2 into the hot aisle 42 from the exhaust port on the back surface 12 b of the rack 12.

The hot air A <b> 2 exhausted into the hot aisle 42 flows through the hot aisle 42 and is sucked from the suction port on the back surface 25 b of the indoor unit 25. The hot air A2 sucked by the indoor unit 25 is cooled by the indoor unit 25, and then becomes cooling air A1, and is again blown out from the outlet of the front surface 25a to the cold aisle 41 side.
Thereby, the flow and temperature of the air in the computer room 21 are controlled, and the favorable operation state of various apparatuses is maintained. At this time, the computer room 21 of the present embodiment is divided into the cold aisle 41 side and the hot aisle 42 side by the device unit row 31 and the respective shielding bodies 33 and 34 as described above. Therefore, the flow of the conditioned air in the computer room 21 can be made smooth, and the hot air A2 flowing in the hot aisle 42 can be prevented from entering the cold aisle 41. Thereby, the air-conditioning efficiency in the computer room 21 can be improved.

By the way, in the case of maintenance of the container-type data center 10, the operator opens the doors 45 to 47 of the container 11 and enters the hot aisle 42 of the computer room 21. When moving from the hot aisle 42 side to the cold aisle 41 side, the side shield 33 is opened and the cold aisle 41 is entered.
However, as described above, outside air flows into the computer room if the external door is opened when entering the container. At this time, if the environment outside the container is highly humid or if it is raining, etc., if the dew point of the outside air is higher than the temperature inside the container, there is a risk of condensation on the surface of the rack due to the outside air flowing into the container. .

Therefore, in the present embodiment, the computer room 21 is divided into the cold aisle 41 side and the hot aisle 42 side by the equipment unit row 31 and the shields 33 and 34, and the computer room 21 and the outside of the container 11 are separated. The doors 45 to 47 that communicate with each other are provided only on the hot aisle 42 side.
According to this configuration, since the temperature on the hot aisle 42 side is higher than the temperature on the cold aisle 41 side, the hot aisle 42 has a larger amount of saturated water vapor than the cold aisle 41. Therefore, even when outside air with a high dew point flows into the computer room 21 when going back and forth between the outside of the container 11 and the computer room 21, dew condensation in the computer room 21 can be suppressed. . Even if the dew point of the hot aisle 42 exceeds the temperature of the cold aisle 41, dew condensation occurs in the indoor unit 25 and is discharged as drain water, so that no condensation occurs in the cold aisle 41.
Moreover, in this embodiment, since dew condensation can be suppressed by changing the layout of the container-type data center 10, unlike the conventional case where dew condensation is suppressed using auxiliary devices such as a blower, Increase in power can be suppressed. As a result, power consumption of the entire data center can be suppressed, and energy efficiency can be improved.

Furthermore, since the air conditioning efficiency can be improved by partitioning the computer room 21 into the hot aisle 42 and the cold aisle 41 as described above, after improving the air conditioning efficiency and energy efficiency in the container 11, Condensation in the container 11 can be suppressed.
Since the inside of the computer room 21 communicates with the outside through the buffer chamber 44, it is possible to make it difficult for dust, rainwater, and the like to enter the inside.

  Outside air blocking means such as an air curtain may be provided on the computer room door 46 or the computer room 21 side of the external door 47. At that time, by generating an air curtain when the doors 46 and 47 are opened, an increase in electric power of the auxiliary machines can be suppressed, and intrusion of outside air into the computer room 21 can be blocked. Condensation can be reliably suppressed.

(Second Embodiment)
(Container type data center)
Next, a second embodiment of the present invention will be described. FIG. 3 is a cross-sectional view of the container type data center in the second embodiment as viewed from above. The present embodiment is different from the first embodiment described above in that an operation chamber communicating with the cold aisle is provided in the container. In the present embodiment, the same components as those in the first embodiment described above are denoted by the same reference numerals and description thereof is omitted.
As shown in FIG. 3, the container 11 of the container type data center 100 of the present embodiment includes a computer room 21, an operation room (buffer room) 101, a buffer room 44, an outdoor unit room 43, and an emergency generator room. 102.

The emergency generator chamber 102 is provided on one end side of the container 11 in the X direction, and the emergency generator 103 is accommodated therein.
The operation room 101 is provided adjacent to the emergency generator room 102 in the X direction, and is a room for an operator to control and operate various devices installed in the computer room 21. The operation room 101 is provided with a switching panel 104 that switches power supply from an external power source to the emergency generator 103 in an emergency or the like.

  The computer room 21 is provided adjacent to the operation room 101. In the computer room 21, an indoor unit 25 and a device unit row 31 including a plurality of racks 12 arranged so as to sandwich both sides of the indoor unit 25 partition the computer room 21 in the Y direction. , Arranged in a line along the X direction. In addition, a UPS 23 is arranged at one end side in the X direction in the computer room 21 with a space between the device unit row 31. In the upper region of the device unit row 31 and the UPS 23, an upper shield 34 that partitions the computer room 21 between the front side and the back side of the device unit row 31 and the UPS 23 is provided. In addition, a side shield 33 that partitions the computer room 21 between the front side and the back side of the device unit row 31 is provided in a side region of the device unit row 31. As a result, the computer room 21 is partitioned into a cold aisle 41 and a hot aisle 42 on the front side and the back side of the device unit row 31. The hot aisle side 42 is provided with an external door 47 that allows communication between the inside and the outside of the container 11.

  The operation room 101 described above includes an external door 110 that allows communication between the outside of the container 11 and the inside of the operation room 101, and a computer room door 111 that enables communication between the operation room 101 and the inside of the cold aisle 41. Yes. As a result, the operator can directly enter the cold aisle 41 of the computer room 21 from the operation room 101 by opening the computer room door 111. That is, in the present embodiment, the external door 45 is directly provided on the hot aisle 42 side, while the external door 110 is provided on the cold aisle 41 side with the operation chamber 101 serving as a buffer function interposed therebetween. ing.

(Condensation suppression means)
FIG. 4 is a block diagram of the condensation suppression means.
Here, as shown in FIG. 4, the container type data center 100 of the present embodiment has a dew condensation suppressing means 120 for suppressing dew condensation in the computer room 21.
The dew condensation suppression means 120 includes a temperature sensor (temperature detection means) 121 that measures the temperature in the computer room 21 (cold aisle 41), and a temperature / humidity sensor (external condition detection means) 122 that measures the temperature and humidity of the outside air. Dew point calculating means (external condition detecting means) 123 for calculating the dew point of the outside air based on the measurement result of the temperature / humidity sensor 122, and the risk of condensation based on the measurement result of the temperature sensor 121 and the calculation result of the dew point calculation means 123 Condensation determining means 124 for determining whether or not there is, and warning means 125 for prompting a warning when the condensation determining means 124 determines that there is a possibility of condensation.

When the dew point a of the outside air calculated by the dew point calculation unit 123 is determined to be higher than the temperature b in the cold aisle 41, the dew condensation determination unit 124 determines that the outside air flows into the cold aisle 41 (computer room). It is determined that there is a risk of condensation when the door 111 is opened.
The warning unit 125 includes an alarm display unit 126 that displays an alarm and a lock unit 127 that locks the computer room door 111 of the operation room 101.

(Condensation suppression method)
Next, a dew condensation suppressing method using the above dew condensation suppressing means will be described. FIG. 5 is a flowchart for explaining the dew condensation suppressing method.
First, in step S1, the temperature b in the container 11 (cold aisle 41) is measured by the temperature sensor 121.
Next, in step S2, the temperature and humidity of the outside air are measured by the temperature / humidity sensor 122, and then in step S3, the dew point a of the outside air is calculated based on the temperature and humidity of the outside air by the dew point calculation means 123.

Next, in Step S4, when outside air flows into the cold aisle 41, it is determined whether or not there is a possibility of condensation. Specifically, the dew condensation determination unit 124 determines whether or not the dew point a of the outside air calculated by the dew point calculation unit 123 is higher than the temperature b measured by the temperature sensor 121.
If the determination result in step S4 is “NO” (a ≦ b), it is determined that there is no possibility of condensation even if outside air flows into the cold aisle 41, and the flow is ended. In this case, the operator can open the computer room door 111 and enter directly into the cold aisle 41 from the operation room 101.

If the determination result in step S4 is “YES” (a> b), if outside air flows into the cold aisle 41 side, it is determined that there is a possibility of condensation, and the process proceeds to step S5.
In step S5, warning means 125 prompts the worker to warn. Specifically, the alarm display unit 126 displays an alarm, and the lock unit 127 locks the computer room door 111. Thereby, it becomes impossible to enter the cold aisle 41 from the operation chamber 101.
Thus, the flow of the dew condensation suppressing method is completed.

In the second embodiment shown in FIG. 3, the operation chamber 101 is provided between the external door 110 and the cold aisle 41.
According to this configuration, when the outside air that has flowed into the operation chamber 101 from the outside of the container 11 when the external door 110 is opened flows into the cold aisle 41, the operation chamber 101 is connected to the outside of the container 11 and the computer. It plays the role of a buffer chamber with the chamber 21. That is, the air that has flowed into the operation chamber 101 from the outside of the container 11 once stays in the operation chamber 101, so that sensible heat and latent heat are taken away in the operation chamber 101 and the dew point is lowered. 41 will flow into 41. Further, when the dew point of the outside air is higher than the temperature of the operation chamber 101, the outside air flows into the cold aisle 41 after dew condensation occurs in the operation chamber 101 and the dew point decreases. Thereby, even if it is a case where external air flows in into the cold aisle 41 via the operation chamber 101, the dew condensation in the cold aisle 41 can be suppressed.

  In addition, in this embodiment, when the dew condensation determination unit 124 determines that there is a possibility of dew condensation, the alarm display and the computer room door 111 are locked, so that dew condensation is caused by the inflow of outside air into the cold aisle 41. Before opening the computer room door 111, it is possible to quickly notice that there is a fear. As a result, it is possible to suppress air having a dew point higher than the temperature of the cold aisle 41 from flowing into the cold aisle 41, so that dew condensation in the computer room 21 can be reliably suppressed. The computer room door 111 may be provided with outside air blocking means such as an air curtain so that the air curtain is generated when the computer room door 111 is opened.

(First modification)
Next, a first modification of the second embodiment will be described. The dew condensation suppressing means of this modification includes a rain sensor (not shown) that detects rain, and is different from the second embodiment described above in that it is determined whether or not there is a possibility of dew condensation based on the presence or absence of rain. ing.

FIG. 6 is a flowchart for explaining the dew condensation suppression method of the first modification. In the following description, the same reference numerals are assigned to the same flow as that of the second embodiment described above, and the description is omitted.
As shown in FIG. 6, first, in step S11, the presence or absence of rain outside the container 11 is detected by a rain sensor.
In step S12, when outside air flows into the computer room 21 (cold aisle 41), it is determined whether or not there is a possibility of condensation. Specifically, the dew condensation determination unit 124 determines whether it is raining outside the container 11 based on the detection result of the rainfall sensor.
If the determination result in step S12 is “NO” (when it is not raining), even if outside air flows into the cold aisle 41 side, it is determined that there is no possibility of condensation, and the flow ends.

If the determination result in step S12 is “YES” (when it is raining), if outside air flows into the cold aisle 41 side, it is determined that there is a possibility of condensation, and the process proceeds to step S5.
In step S5, as in the second embodiment described above, the warning means 125 prompts the worker to give a warning, and the flow ends.

  According to this configuration, air having a high dew point at the time of rain can be suppressed from flowing into the computer room 21, so that the same effect as that of the second embodiment described above can be achieved.

(Second modification)
Next, a second modification will be described. In this modification, after the warning by the warning means 125 is made, when the lock of the computer room door 111 is released, it has a warning sound generator (not shown) that generates a warning sound. This is different from the second embodiment described above.

FIG. 7 is a flowchart for explaining the dew condensation suppressing method of the second modified example.
As shown in FIG. 7, in step S5, the alarm display unit 126 displays an alarm and locks the computer room door 111. Then, the process proceeds to step S21.
In step S21, it is determined whether or not the computer room door 111 is unlocked.
If the determination result in step S21 is “NO”, it is determined that the lock of the computer room door 111 is maintained, and the flow ends.

On the other hand, if the determination result in step S21 is "YES", it is determined that the computer room door 111 has been unlocked, and the process proceeds to step S22.
In step S22, a warning sound is generated by the warning sound generation unit to urge the worker to warn. Thus, the flow ends.
Therefore, according to the present modification, if the computer room door 111 is unlocked without noticing the alarm display or the like, the warning can be urged to the worker by the warning sound. Thereby, when the outside air flows into the cold aisle 41, it is possible to recognize that there is a possibility of condensation before opening the computer room door 111. For this reason, it is possible to more reliably suppress the air having a high dew point from flowing into the computer room 21 and to suppress the dew condensation in the computer room 21.

(Third Modification)
Next, a third modification will be described. In this modification, the first and second modifications described above are used in that a warning sound is generated when the lock of the computer room door 111 is released in a state where it is determined that there is a possibility of condensation due to detection of rain. It is different from the example.

FIG. 8 is a flowchart for explaining the dew condensation suppressing method of the third modified example.
As shown in FIG. 8, when the determination result in step S12 is “YES” (when it is raining), if outside air flows into the cold aisle 41 side, it is determined that there is a possibility of condensation, and the process proceeds to step S5. .
In step S5, an alarm is displayed on the alarm display unit, and the computer room door 111 is locked. Then, the process proceeds to step S21.
Thereafter, in step S21 and subsequent steps, the same flow as that of the second modified example described above is performed, so that air with a high dew point is more reliably suppressed from flowing into the computer room 21 during rainy weather. Condensation within 21 can be suppressed.
However, before the operator opens the outer door 110 of the operation room 101 in order to prevent the worker from being trapped in the computer room 21 when it rains or the dew point rises outside during work in the computer room 21. If so, a mechanism that makes it possible to open the computer room door 111 may be adopted.

The technical scope of the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.
For example, if the inside of the computer room 21 is divided into the front side (cold aisle 41) and the back side (hot aisle 42) of the equipment unit row 31, the layout inside the computer room 21 can be appropriately changed in design. It is.
In the above-described embodiment, the configuration in which the curtains are used for the shields 33 and 34 has been described. However, the present invention is not limited to this, and design changes such as a roll curtain, an air curtain, and a door can be made as appropriate.

In the above-described embodiment, the configuration in which the upper space of the device unit row 31 is partitioned by the upper shield 34 has been described. However, the present invention is not limited to this, and the shielding extends from the upper surface of the device unit row 31 to the side wall of the container 11. A body may be provided to partition the computer room 21.
Furthermore, the rack 12 or the like having the same height as the container 11 (the height in the Z direction from the floor plate 15 to the top wall 11b) is used in the computer room 21 by the rack 12 or the like without using the upper shield 34. May be partitioned. In this case, in the container-type data center according to the present invention, since the rack 12 and the like are distributed in the container 11, the rack 12 has the same height as the container 11 if the rack 12 is installed when the container 11 is assembled. Even racks can be easily assembled.

  Although the case where the temperature in the buffer chamber 44 is set to be between the inside and the outside has been described, the environment of the buffer chamber 44 is set so as not to directly take in the external air condition. Just do it. For example, it may be equivalent to the outside air temperature and the humidity may be set low.

Further, in the second and subsequent embodiments described above, when the computer room door 111 of the operation room 101 is opened by the dew condensation suppressing means, the external condition of the container 11 (humidity and presence / absence of rainfall) and the temperature in the cold aisle 41 Based on the above, the presence or absence of condensation was determined, but when opening the external door 47 communicating with the hot aisle 42, based on the external condition of the container 11 (whether humidity or rain) and the temperature in the hot aisle 42, The presence or absence of condensation may be determined.
Even in this case, it is possible to suppress the flow of air having a dew point higher than the temperature of the hot aisle 42 into the hot aisle 42 by adopting the same dew condensation suppressing method as in the second embodiment and the modifications described above. Therefore, the dew condensation in the computer room 21 can be reliably suppressed. In addition, condensation determination means may be provided on the hot aisle 42 side and the cold aisle 41 side, and the presence or absence of condensation may be determined when each door (for example, 111, 47, 46) is opened.

  Further, in the second and subsequent embodiments described above, the presence / absence of dew condensation is determined based on the external state of the container 11 (humidity and rain / no rain) and the temperature in the cold aisle 41. However, the present invention is not limited to this. 44 or the dew point of the operation room 101 and the temperature of the computer room 21 (cold aisle 41 or hot aisle 42) may determine the presence or absence of condensation.

In addition, by making it possible to adjust the temperature and humidity of the buffer chamber 44 and the operation chamber 101, it is possible to suppress the occurrence of condensation in the computer room 21 in a wider range, and the inside of the computer room 21. It becomes possible to keep the temperature and humidity environment more constant. Furthermore, when the dew point outside the container 11 is high or when there is rain, the computer room 21 can be entered and exited, and workers can be prevented from being locked by locking the door.
Further, an external door may be provided directly on the cold aisle 41 side. In that case, it is necessary to provide the above-mentioned dew condensation suppression means 120 or outside air blocking means such as an air curtain.

DESCRIPTION OF SYMBOLS 10,100 ... Container type data center 11 ... Container 12 ... Equipment accommodation rack 12a ... Front face 12b of equipment accommodation rack ... Rear face of equipment accommodation rack 13 ... Air conditioning system (air conditioner)
13a ... Front surface 13b of the air conditioning system ... Back surface 21 of the air conditioning system ... Computer room 31 ... Device unit row 37 ... Entrance / exit 41 ... Cold aisle (first space)
42 ... Hot aisle (second space)
44 ... Buffer room 101 ... Operation room (buffer room)
110 ... External door 111 ... Computer room door 121 ... Temperature sensor (temperature detection means)
122 ... Temperature / humidity sensor (external condition detection means)
123 ... dew point calculation means (external condition detection means)
125 ... Warning means 126 ... Alarm display section 127 ... Lock means

Claims (9)

An equipment storage rack that is arranged in a computer room configured inside the container and exhausts air taken from the front from the back;
In a container type data center equipped with an air conditioner that cools air taken in from the back and blows it out from the front,
The equipment storage rack and the air conditioner constitute a equipment unit row formed by aligning the front and back directions of each other,
The interior of the computer room is partitioned into a first space on the front side and a second space on the back side across the device unit row,
A container-type data center, wherein an entrance for communicating the outside of the container and the inside of the computer room is provided on the second space side of the container. The entrance / exit has a buffer chamber,
The buffer chamber allows communication between the buffer chamber and the computer room through a computer room door, and allows communication between the buffer chamber and the outside of the container through an external door. The container type data center according to 1.   The container type data center according to claim 2, wherein the buffer chamber is configured to be able to communicate with the first space of the computer room through the computer room door.   By adjusting the temperature and / or humidity in the buffer chamber, the temperature and humidity environment in the computer chamber can be kept constant even when the computer chamber door is opened. The container type data center according to claim 2 or 3. The presence or absence of rain outside the container, or external condition detection means for detecting the dew point of the outside air;
Temperature detecting means for detecting the temperature in the computer room;
Condensation determination means for determining whether or not there is a possibility of condensation in the computer room when the computer room door is opened based on the detection result by the external state detection means and the temperature detection means;
5. The container-type data according to claim 1, further comprising a warning unit that prompts a warning when the condensation determination unit determines that there is a risk of condensation. Center. Dew point detecting means for detecting the dew point of the buffer chamber;
Temperature detecting means for detecting a temperature in the first space or the second space communicating with the buffer chamber;
Based on the detection results by the dew point detection means and the temperature detection means, dew determination means for determining whether or not there is a possibility of dew condensation in the computer room when the computer room door is opened;
The container type data according to any one of claims 2 to 4, further comprising warning means for prompting a warning when the condensation determination means determines that there is a risk of condensation. Center.   7. The container type data according to claim 5 or 6, wherein the warning means includes an alarm display unit for displaying an alarm when the condensation determination means determines that there is a possibility of condensation. Center.   The said warning means has a lock means which locks the said computer room door, when it is judged by the said condensation judgment means that there exists a possibility of condensation, The said computer room door is characterized by the above-mentioned. The container type data center described in any one of the items.   The outside entrance is provided with outside air blocking means for blocking outside air from flowing into the computer room from the entrance when the outside of the container communicates with the inside of the computer room. The container type data center according to any one of claims 1 to 8.

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