JP2012252639A - Simplified building with electronic device accommodated therein - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a building for accommodating electronic devices therein that has high sealability, efficiently radiates inside heat to the outside with the electronic devices protected, and can be increased and moved easily.SOLUTION: Metal fasteners 2 capable of being engaged with a tightener are fixed at upper and lower portions of columnar members 1F and 1R disposed at four corners of a building. The building has a roof 3 at a position lower than the metal fasteners 2 and an intermediate ceiling board 9 below the roof 3. Racks 6 accommodating electronic devices are stored in a lower chamber CR under the intermediate ceiling board 9. A heat exchanger and an air circulation fan for cooling air are disposed in the lower chamber CR and an outdoor heat exchanger for radiating heat is disposed above the lower chamber, so that the heat exchanger and air circulation and the outdoor heat exchanger sandwich the intermediate ceiling board. When the number of electronic devices increases, the building can be increased by directly disposing one building on another and engaging the metal fasteners 2 with the tighteners. Heat generated by the electronic devices is radiated to the outside air through the heat exchanger in the lower chamber CR and the outside heat exchanger.

Description

  The present invention is configured to centrally manage electronic devices such as computers in a room, such as a data center in which a large number of servers housed in a rack are centrally installed, and in particular, can be easily moved or expanded. Concerning buildings.

  With the development of computer networks represented by the spread of the Internet, the demand for computers such as servers, which are relatively large-sized business-use computers that emphasize reliability, or storage that mainly contains storage devices, is the network service. In recent years, the number of providers has been increasing rapidly. Computers such as servers are housed in a rack, which is a housing for storage, and are often centrally managed in one place. A building that centrally manages servers is called a data center. It is.

  In addition to what is constructed as a normal building, there are container-type data centers (also called modular data centers) that are constructed by modifying containers that are large containers for transportation. The shipping container has a robust structure surrounded by a strong wall around it, making it easy to ensure the security of the data center and high airtightness. It is easy to protect the computer by preventing (if installed). Container-type data centers are small buildings compared to ordinary buildings based on transportation containers, so they can be easily expanded and relocated and are suitable for unmanned operation. is there.

  Japanese Laid-Open Patent Publication No. 2011-18220 discloses a large-scale building with a steel structure in which a plurality of shelf-shaped container storage units are formed in the vertical and horizontal directions so that the expansion of a container-type data center can be easily accommodated. ing. As shown in FIG. 7, this building has a lattice structure in which a plurality of steel pillars PL and beams BM are combined, and a container CT as a data center is stored in each section of the lattice structure. A passage WY for maintenance management is provided in front of the container CT, and a movable elevator (not shown) is provided on the rear side. The container CT can be easily placed in a storage place by the elevator. Installed.

  By the way, in a building such as a data center equipped with a large number of computers, it is necessary to prevent thermal failure caused by the heat generated by the computers and to perform indoor air conditioning. In order to cool the computer or to air-condition the room, an air conditioner that executes the refrigeration cycle may be installed to forcibly cool the computer, but the heat transfer is similar to a heat pipe that uses the phase change of the refrigerant. There is also known a cooling device that prevents a thermal failure of a computer by actively exhausting indoor heat to the outside atmosphere using an accelerating device, and is disclosed in, for example, Japanese Patent Application Laid-Open No. 2011-38734. Yes.

The cooling device described in the above publication is for cooling information communication equipment accommodated in a telephone base station such as a mobile phone (suppressing temperature rise). As shown in FIG. An outdoor heat exchanger LE (low temperature heat exchanger) is installed outdoors, and an indoor heat exchanger HE (high temperature heat exchanger) is installed above the room R where the information communication equipment is installed. Both heat exchangers are connected to each other and a refrigerant is sealed inside, and the refrigerant generated in the indoor heat exchanger HE is boiled by the heat generated from the information communication device and transferred to the outdoor heat exchanger LE. The refrigerant is condensed by discharging heat to the indoor heat exchanger HE by gravity. The indoor air is circulated by the indoor fan RF and is cooled by passing through the indoor heat exchanger HE whose temperature has dropped.
This device based on the outside air cooling is a natural circulation type cooling device that uses convection based on a temperature difference, and does not perform a refrigeration cycle. Therefore, external power or the like is basically unnecessary. Therefore, when this cooling device is employed in a data center, almost no power other than that used by a computer such as a server is required, and power consumption can be greatly reduced.

JP 2011-18220 A JP 2011-38734 A

  In buildings that contain a large number of electronic devices such as computers such as data centers or telephone base stations, it is required to ensure sufficient security of computers and to protect computers from dust and salt damage. In order to meet these requirements, it must be possible to enhance the sealing of the building and block the room from the outside. On the other hand, to prevent thermal damage caused by computer heat, It is necessary to cool the computer securely while discharging it. At this time, in recent data centers, it is required to suppress as much as possible electric power for room cooling other than electric power for computer operation. In addition, it is desirable that small equipment such as container-type data centers can be operated unattended by workers, etc., which reduces power consumption by eliminating the need for air conditioning for workers. It will be connected.

In addition, it is desirable that the container-type data center can be easily expanded or removed in accordance with the increase or decrease in demand for servers or the like. The building disclosed in Patent Document 1 is intended to facilitate the expansion of container-type data centers, etc., but is a very large-scale building based on a steel structure. It is not suitable unless it requires a great deal of cost and requires a very large number of servers.
An object of the present invention is to efficiently cool a large number of accommodated computers in a building such as a data center and improve the structure of the building to facilitate expansion and relocation. There is to solve.

In view of the above problems, the present invention secures fasteners capable of engaging fasteners to the upper and lower portions of columnar members arranged at the four corners of a building, and has an intermediate ceiling plate below the roof of the building. The electronic device is placed in a lower chamber of the intermediate ceiling plate, and the electronic device cooling device is disposed so as to sandwich the intermediate ceiling plate. That is, the present invention
“It ’s a building with electronic equipment inside,
The building has a rectangular shape in plan view, and columnar members are arranged at four corners of the rectangle, and fasteners that can be engaged with fasteners are provided at the upper and lower portions of the columnar members. The bracket is fixed,
The roof of the building is installed at a position that is lower than the fasteners secured to the top, and
An intermediate ceiling plate is provided below the roof of the building, and the electronic device is housed in a room formed below the intermediate ceiling plate,
The room formed below the intermediate ceiling plate is provided with a heat exchanger for cooling indoor air and a fan for circulating the cooled air, and the roof of the building and the intermediate ceiling plate An outdoor heat exchanger that exhausts the heat absorbed by the heat exchanger to the outside air is installed between
The building is characterized by that.

  According to a second aspect of the present invention, the intermediate ceiling plate can be provided below a part of the roof of the building.

  As claimed in claim 3, a plurality of the electronic devices are housed in a rack, and a heat exchanger outer box containing the heat exchanger is attached above the rack, and the heat exchanger outer box is mounted on the rack. It is preferable to fix to the intermediate ceiling plate.

  According to a fourth aspect of the present invention, the heat exchanger and the outdoor heat exchanger are communicated with each other, and a refrigerant circulating by convection is enclosed therein, so that indoor heat is exhausted from the outdoor heat exchanger. Can be configured.

  A bottom frame having a rectangular frame is installed at the bottom of the building, and a fork pocket into which a fork of a forklift is inserted is formed in the bottom frame, and a longitudinal direction of the rectangle. It is preferable to fix so as to extend at a right angle.

  In addition, as described in claim 6, on one of the end faces of the building, a double door is installed, a lock rod for closing the door is provided, and a cam at the upper end of the lock rod is provided. The engaging cam keeper is preferably fixed to a beam member provided to connect the columnar members below the roof of the building.

The building of the present invention in which an electronic device is housed has a rectangular shape in plan view, and columnar members are arranged at the four corners of the rectangle, and the upper and lower portions of each of the columnar members are arranged. The fasteners that can be engaged with the fasteners are fixed. That is, the building of the present invention has a rectangular parallelepiped shape as a whole, and there are fasteners that can be engaged with fasteners at eight corners of the rectangular parallelepiped, similar to a marine container stacked and loaded on a ship. It is fixed. Such fasteners are called corner casting in the container field, and are commonly used fasteners. When connecting containers, a fastener such as a twist cone is engaged with the fasteners and stacked. Is done. When a container is transported by land, it is loaded on a container chassis with wheels, and a twist lock that engages with a fastener is attached to the container chassis according to the dimensions of the container.
Since the building of this invention is installed in the position where the roof becomes lower than the fastening metal fitting fixed to the upper part, it is possible to stack and connect buildings directly. Therefore, when a building is added in response to an increase in demand for electronic devices, the building can be added simply by loading another on the existing building. When relocating a building, it can be moved by loading it on a normal container chassis and tightening the fastening bracket to the twist lock.

And in the building of this invention, the intermediate ceiling board is provided under the roof, and an electronic device is stored in the room | chamber formed in the lower side of this intermediate ceiling board. The room containing the electronic equipment is provided with a heat exchanger that cools the air and a fan that circulates the cooled air, and heat exchange between the building roof and the intermediate ceiling plate An outdoor heat exchanger that exhausts the heat absorbed by the chamber to the outside air is installed. Thereby, the electronic device can be efficiently cooled, and a thermal failure due to a temperature rise is prevented. Moreover, since an outdoor heat exchanger is accommodated under the roof, it does not become an obstacle when stacking buildings.
The intermediate ceiling plate can be installed over the entire lower surface of the roof. However, as in the invention of claim 2, the intermediate ceiling plate is installed below a part of the roof of the building, such as a portion where an outdoor heat exchanger is present. May be.

  According to a third aspect of the present invention, a plurality of electronic devices are accommodated in a rack, and a heat exchanger outer box containing an indoor heat exchanger is attached above the rack, and the heat exchanger outer box is attached to the intermediate ceiling plate. It is to be fixed to. According to this configuration, the rack in which the electronic device is stored and the cooling device for the electronic device are unitized, and the rack is provided with an independent cooling device. Only the cooling device for the rack in which the electronic device is operating is operated. , Power can be reduced accordingly. In addition, since the upper part of the unitized rack-heat exchanger assembly is fixed to the intermediate ceiling plate, the earthquake resistance of the electronic device housing can be improved.

  In the present invention, in order to cool indoor air containing electronic equipment, a refrigeration cycle using a compressor or the like is executed, and an evaporator (evaporator) of the refrigeration cycle is installed indoors as a heat exchanger. However, in the invention of claim 4, an outdoor heat exchanger placed outside the room in communication with the heat exchanger is provided above the heat exchanger that cools the indoor air, and both heat exchangers are provided inside. A refrigerant circulating by convection is enclosed, and indoor heat is exhausted from the outdoor heat exchanger. According to this, it is possible to cool electronic devices such as computers using natural convection basically without using electric power.

  When the bottom frame is installed at the bottom of the building and the fork pocket for inserting the fork of the forklift is provided on the bottom frame as in the invention of claim 5, the forklift is used to stack and move the building. be able to. That is, there is no need for a large-scale crane or the like for stacking buildings, and loading onto a container chassis can be easily performed using a forklift.

  According to the sixth aspect of the present invention, a cam keeper is provided on one of the end faces of the building. The cam keeper is provided with a lock rod for installing a double door and closing the door, and is engaged with a cam at the upper end of the lock rod. It fixes to the beam member provided so that a columnar member may be connected under the roof of this. The lock rod is a bar having high strength and rigidity, and the double door that is closed by the lock rod increases the security of the entrance of the building. In addition, beam members are placed under the roof of the building on the columnar members, which are arranged on both sides of the double doors and fixed with fasteners on the top and bottom, and engage with the cam on the upper end of the lock rod. A cam keeper is fixed to the beam member. Therefore, when the building is stacked up and down, the beam member and the lock rod act as a reinforcement for the lower building, and even if there is some deformation of the columnar member, the cam and cam keeper When the lock rod is rotated strongly by engaging and the deformation is restored, the door can be closed. The gap between the roof of the building and the beam member can be used as an outside air inlet or outlet for the outdoor heat exchanger.

It is a general view which shows one Example of the building of this invention. It is a figure which shows the framework structure in the front-back part of the building of FIG. It is a figure which shows an example of the fastener used for the building of this invention, and a fastener. It is a figure which shows the connected state of the building of this invention. It is a figure explaining the cross section of the building of FIG. 1, and the circulation of air. It is a figure which shows the floor structure of the building of FIG. It is a figure which shows the conventional large-scale building which has a container storage part. It is a figure which shows the conventional cooling device which exhausts heat to outside air and cools a room | chamber interior.

Hereinafter, the building of the present invention used as a data center or the like will be described with reference to the drawings.
As can be seen from the overall view of FIG. 1, the building of the present invention is constructed as a container-type data center based on a container for transportation, and is a box-shaped structure that is a hexahedron as a whole. It has a rectangular shape in plan view. At the four corners of the rectangle, a columnar member 1F on the front side and a columnar member 1R on the rear side are arranged as columnar members 1 extending in the vertical direction (in the side view, except for the side wall of the box structure, For the sake of convenience, the left side is the front and the right side is the rear), and the fasteners 2 are fixed to the upper and lower portions of each columnar member. The fastening bracket 2 is fixed to each columnar member so as to be located at the outermost part of the building, and the roof 3 of the building is installed at a position lower than the fastening bracket fixed to the upper part. Has been. The interior of the building is divided into a computer room CR in which computers such as servers and storages are housed, and a machine room MR in which a power supply unit EU for supplying power to the computers and the like, an outdoor unit CD for preliminary air conditioning, and the like are installed. A partition wall is installed between them.

  2A shows a front frame body provided with a front-side columnar member 1F, and FIG. 2B shows a rear frame frame body provided with a rear-side columnar member 1R. In this embodiment, the front-side columnar member 1F has a flat, flat, uniform cross section, and the fastening fitting 2 is fixed to the upper and lower portions thereof by welding. The columnar member 1R on the rear side also has a flat rectangular uniform cross section, and the upper and lower parts are welded to the fastening bracket 2, but there are four cutouts for attaching the hinge of the double door. Is formed. A beam member 4 that connects the two columnar members 1R is hung on the columnar member 1R on the rear side shown in FIG. 2B under the roof 3 of the building. A cam keeper CK for a lock rod LR (FIG. 1) for closing the double door is fixed to the beam member 4.

  As is well known, the lock rod is a bar having high strength and rigidity, with the cam member integrally fixed to the upper end and the lower end, and the cam member is engaged with a cam keeper fixed to the frame. Close the door. The cam member has bifurcated portions on both sides, and is configured such that the bifurcated portions are fitted into two protrusions formed on the cam keeper by rotating the lock rod (for example, Japanese Patent Laid-Open No. 2000-129980). See the official gazette). In the building of the present invention, the lock rod LR of the double door that serves as an entrance / exit exists between the beam member 4 and the bottom frame 5 placed at the bottom of the building as a so-called reinforcing pillar. Therefore, the strength of the building is increased, and deformation is reduced even when stacked.

The fastening fitting 2 used in the building of the present invention is a fitting similar to the corner casting placed at the corner of the marine container, and this fastening fitting will be described with reference to FIG. The fastening bracket 2 is a solid rectangular solid component formed by combining six thick plates, and is usually manufactured from cast steel so that it can be welded to a columnar member. A through hole for engaging a fastener such as a twist cone TC is formed in the thick plate on the outer surface of the building. When stacking a building, like the loading of a marine container, the upper projection of the twist cone TC is fitted into the through hole of the upper fastening fitting 2, and the twist cone TC is rotated by a predetermined angle so that the lower projection is moved downward. It fits in the fastener 2 and connects both. By the way, the twist lock attached to the container chassis for land transportation also has its upper projection fitted into the corner casting on the lower side of the container and fixed by rotating it by a predetermined angle.
The building of the present invention can be directly stacked as shown in FIG. 4A by engaging a fastener such as a twist cone with the fastener 2, which increases the demand for servers and the like. Correspondingly, it can be easily expanded. In some cases, as shown in FIG. 4 (b), it is possible to add in parallel by using a fastener that is connected in the lateral direction.

  In order to enable the use of forklifts when stacking buildings and loading on container chassis, the bottom frame 5 (Fig. 1) placed on the bottom of the building has two forklift forks. Is provided with a fork pocket FP. The fork pocket FP is a square pipe having a quadrangular cross section and a large strength, and extends in a right angle (lateral direction) to the longitudinal direction of the bottom frame 5 that is rectangular in plan view, and is attached to the bottom frame 5 by welding or rivets. (See also FIG. 6).

In the present invention, an intermediate ceiling plate is provided below the roof of the building, and an electronic device is housed in a room below the intermediate ceiling plate, and a heat exchanger that cools indoor air and exhaust heat The outdoor heat exchangers are respectively installed below and above the intermediate ceiling plate. This structure will be described with reference to FIGS.
A large number of electronic devices such as computers are housed in a building room in such a manner that they are housed in a rack 6, and the rack 6 is fixed on a T-shaped plate 7 laid on the floor (detailed structure). Will be described later), and is installed at a substantially central portion in the cross section of the computer room CR. A heat exchanger outer box 81 containing a heat exchanger 8 for cooling the air in the computer room CR is attached above each rack 6. The rack 6 and the heat exchanger 8 are unitized. A structured rack-heat exchanger assembly. In this embodiment, eight rack-heat exchanger assemblies are installed in the computer room CR (FIG. 1), and the upper heat exchanger of the rack mainly separates the combined lower rack. It is a heat exchanger for cooling.

  An intermediate ceiling plate 9 is provided between the rack-heat exchanger assembly and the roof of the building. In this part, the building forms a double ceiling. In this embodiment, the intermediate ceiling plate 9 is a heat insulating panel in which heat insulating materials are laminated, and an end portion thereof is coupled to a center beam 10 extending over the entire length in the longitudinal direction of the building. The center beam 10 connects the roof 3 and the intermediate ceiling plate 9 of the building, thereby increasing the strength and rigidity of the upper part of the building. In addition, the upper portion of the rack-heat exchanger assembly is fixed to the intermediate ceiling plate 9 in order to increase the strength and earthquake resistance of the rack 6.

Above the heat exchanger 8 combined with the rack 6 for cooling the air in the computer room CR, an outdoor heat exchanger 11 is placed, which is an intermediate ceiling plate 9 outside the computer room CR. Placed on top. Both heat exchangers are in communication with each other as in the heat exchange device described in Patent Document 2, and a refrigerant that performs a gas-liquid phase change is sealed inside. A fan 12 for circulating the air in the computer room CR is attached to the end of the indoor heat exchanger 8, and a fan 13 for introducing outside air is attached to the end of the outdoor heat exchanger 11. The The outside air introduced by the fan 13 cools the outdoor heat exchanger 11, then passes through a common exhaust duct 14 that is bent at a right angle and extends in the longitudinal direction of the building, and flows at the upper front end or upper rear end of the building. It is discharged from the exit. The flow of outside air may be reversed and discharged from the fan 13.
As shown in FIG. 5B, the indoor air whose temperature has risen as the computer stored in the rack 6 rises in the computer room CR as indicated by the arrow on the left side of the figure, and is a heat exchanger. The liquid refrigerant introduced into 8 and sealed inside is boiled. The gaseous refrigerant enters the outdoor heat exchanger 11 by convection, where heat is dissipated to the outside air to condense, and is returned to the indoor heat exchanger 8 in a state where the temperature is lowered. On the other hand, the indoor air cooled by the heat exchanger 8 is sent out as indicated by the right arrow in the figure by the fan 12 circulating the cooling air, and cools the computer stored in the rack 6.

  As described above, the indoor air cooling apparatus in this embodiment is of a natural cooling type in which two heat exchangers enclosing a refrigerant circulating by convection are provided, and the heat in the sealed room is exhausted. Therefore, cooling can be performed without using electric power. However, in order to cool indoor air, a refrigeration cycle may be executed by installing a compressor or the like, and an evaporator (evaporator) of the refrigeration cycle may be installed indoors as a heat exchanger. Also in this embodiment, in preparation for a situation where the outside air temperature rises and the cooling capacity of the natural cooling type cooling device is insufficient, a spare air conditioner for executing the refrigeration cycle is installed, and the evaporator EV ( 5A) is mounted on the ceiling surface, and an outdoor unit CD (FIG. 1) containing a compressor and a condenser (condenser) is installed at the upper part of the machine room.

  Next, the floor structure of the building of the present invention in which the rack 6 is installed will be described based on FIG. The bottom of the building is provided with a bottom frame 5 in which a plurality of cross members 51 extending at right angles to the longitudinal direction (lateral direction) are spanned at appropriate intervals on a rectangular frame similar to a container for transportation. Fork pockets FP that cross the bottom frame 5 are attached at two locations. Above the cross member 51, a sandwich panel 15 in which metal plates such as aluminum are laminated on both surfaces of a heat insulating material such as foamed synthetic resin is installed on almost the entire surface of the building, and further above that, continuously. A T-shaped plate member 16 in which a plurality of extending T-shaped cross-sectional protrusions 161 are formed in parallel on the bottom plate is laid.

As the T-shaped plate member 16, a long aluminum extruded shape member called a so-called T-shaped board is used. As shown in FIG. 6A, the T-shaped plate member 16 is laid over almost the entire length of the building to the floor of the machine room. ing. As shown in FIG. 6B, a hat-shaped plate material 17 having a hat-shaped cross section is laid in a portion where the T-shaped plate material 16 is not laid, and a shallow dish-shaped space is formed here. Portions other than the place where the rack 6 is placed, including the upper portion of the hat-shaped plate member 17, are covered with a thin plate cover (not shown).
In this floor structure, the cable between the projections 161 of the T-shaped plate member 16 and the space of the hat-shaped plate member 17 can be freely wired to the computer stored in the rack 6. Further, the cooling air circulated in the room by the fan 12 passes through these spaces and flows into the periphery and the lower part of the rack 6. Therefore, the heat generated from the computer or the like is efficiently removed, and a thermal failure due to a temperature rise is prevented.

  As described above in detail, in the present invention, in a building containing electronic equipment, fasteners capable of engaging fasteners are fixed to the upper and lower portions of columnar members arranged at the four corners of the building so that the roof of the building is secured. An intermediate ceiling plate is provided below, an electronic device is placed in a lower chamber of the intermediate ceiling plate, and a cooling device for the electronic device is disposed so as to sandwich the intermediate ceiling plate. In the above embodiment, an external air cooling method using a natural convection circulation type heat exchanger is used for cooling the electronic device, but instead, an air conditioner that executes a refrigeration cycle is adopted, The outdoor unit may be installed above the intermediate ceiling plate. In the embodiment, an independent cooling device is installed above each rack. However, various modifications can be made to the embodiment, such as providing a single cooling device that cools the room in a concentrated manner. It is clear.

DESCRIPTION OF SYMBOLS 1 Columnar member 1F Front side columnar member, 1R Rear side columnar member 2 Fastening bracket 3 Roof 4 Beam member 5 Bottom frame 6 Rack 8 Heat exchanger (for indoor air cooling)
9 Intermediate ceiling plate 11 Outdoor heat exchanger 12 Fan (for indoor air circulation)
16 T-shaped board

Claims (6)

A building that houses electronic equipment in a room,
The building has a rectangular shape in plan view, and columnar members are arranged at four corners of the rectangle, and fasteners that can be engaged with fasteners are provided at the upper and lower portions of the columnar members. The bracket is fixed,
The roof of the building is installed at a position that is lower than the fasteners secured to the top, and
An intermediate ceiling plate is provided below the roof of the building, and the electronic device is housed in a room formed below the intermediate ceiling plate,
The room formed below the intermediate ceiling plate is provided with a heat exchanger for cooling indoor air and a fan for circulating the cooled air, and the roof of the building and the intermediate ceiling plate Between, the outdoor heat exchanger which exhausts the heat | fever which the said heat exchanger absorbed to the outside air is installed, The building characterized by the above-mentioned. The building according to claim 1, wherein the intermediate ceiling plate is provided below a part of the roof of the building. A plurality of electronic devices are housed in a rack, and a heat exchanger outer box containing the heat exchanger is attached above the rack, and the heat exchanger outer box is attached to the intermediate ceiling plate. The building according to claim 1 or 2, which is fixed to the building. The said heat exchanger and the said outdoor heat exchanger are connected, the refrigerant | coolant which circulates by the convection is enclosed inside, and the indoor heat is exhausted from the said outdoor heat exchanger. A building according to any of the above. A bottom frame having a rectangular frame is installed at the bottom of the building, and a fork pocket for inserting a fork of a forklift is fixed to the bottom frame so as to extend perpendicular to the longitudinal direction of the rectangle. The building according to any one of claims 1 to 4. One of the end faces of the building is provided with a double door and a lock rod for closing the door, and a cam keeper that engages with a cam at the upper end of the lock rod is provided in the building. The building according to any one of claims 1 to 5, wherein the building is fixed to a beam member provided so as to connect the columnar members below the roof of the object.

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