JP2010230188A - Air conditioning system for computer room using roll screen - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air conditioning system for a computer room adopting a roll screen as a shielding body and preventing the deformation of the roll screen. <P>SOLUTION: The air conditioning system for the computer room includes apparatus storage racks 3 installed at both sides sandwiching a passage 4 and an air conditioner. Cooling air blown out of the air conditioner cools apparatuses stored in the racks 3, and then, the cooling air is made to flow in a space above the racks 3 and sucked to the air conditioner again. The air conditioning system for the computer room further includes: the roll screen 500 covering upper faces of the racks 3 installed at both the sides sandwiching the passage 4 and capable of partitioning the passage 4 and the space above the racks 3; a winding part 200 mounted to one of the racks 3 and positioned at the upper face side of the rack and capable of winding and drawing out the roll screen 500; and guide rails 300A, 300B for supporting lateral parts of the roll screen when the roll screen is drawn out of the winding part. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a computer room air conditioning system using a roll screen.

Conventionally, various air conditioning systems for adjusting the air flow and temperature in a certain space have been proposed.
Among these air conditioning systems, air conditioning for computer rooms that adjusts the air flow and temperature around the equipment in the computer room where IT equipment and communication devices that tend to be highly integrated and heat-generating are installed. The system is known.
As an air conditioning system for a computer room, a plurality of equipment storage racks arranged opposite to each other with a predetermined space (passage) in between, and an air conditioner disposed on the side of the equipment storage rack and facing the predetermined space There is something with.

Under such a configuration, when the air conditioner discharges the cooling air downward, the cooling air is sent to a predetermined space and sucked into the equipment housing rack. Then, the cooling air is warmed by cooling the equipment housed in the equipment housing rack, and then blown out from the equipment housing rack. Then, the warmed and blown air flows through the upper space of the computer room, is sucked into the air conditioner, and is cooled and discharged again.
Thereby, the flow and temperature of the air in the computer room are controlled.

However, part of the air that has been warmed and blown out from the equipment housing rack may be directly returned to the predetermined space from the upper or passage space without being sent to the air conditioner. In that case, the air recirculated to the predetermined space may be sucked into the equipment storage rack again while being warmed or mixed with the cooling air described above. In that case, there is a possibility that a high temperature failure may occur due to the device sucking in warm air recirculated into the predetermined space. Moreover, in order to prevent this high temperature failure, the air conditioner may be forced to operate excessively, and the efficiency of the air conditioner may be reduced.
Therefore, it is conceivable to prevent the flow of air from the upper space to the predetermined space by bridging a shielding plate (shielding body) over the upper surfaces of the equipment housing racks facing each other across the passage (for example, Patent Documents). 1).

Japanese Patent No. 3833515

  By the way, when a shielding plate is installed as in Patent Document 1, a bolt or the like is attached to the device housing rack so that the shielding plate does not easily fall off from the upper surface of the device housing rack. The racks for accommodating devices are fixed so that they cannot move relative to each other.

However, when the shields are fixed to the equipment-accommodating racks in this way, when maintenance is performed on equipment in the computer room, such as lighting and fire alarms, the maintenance operator attaches and removes the shielding plates one by one. There must be. When attaching and removing the shielding plates one by one, the efficiency in maintenance work of equipment was reduced, and when the operator removed the shielding plates, the risk of the shielding plates falling from the equipment rack was removed, and removed Problems arise such as securing a storage space for temporarily storing the shielding plate on the passage. In addition, due to such deterioration in work efficiency, high temperature failure of the IT equipment or communication device may be caused by intrusion of exhaust gas from the IT equipment or communication device or leakage of cold air from the air conditioner in the passage. There is sex.
In addition, when panel material that can be easily removed is used as the shielding plate, the risk of high-temperature failure is improved by slightly improving work efficiency, but the risk of panel material falling during work And the problem of securing storage space is not improved.
On the other hand, in order to facilitate the handling of the shielding plate, it is conceivable to use a flexible material as the shielding plate. However, when a flexible material is used, there is a possibility that the shielding body may be bent due to its own weight or pressure fluctuation in the passage, and the shielding may not be performed well. Further, the bending in this case may hinder the opening and closing of the door of the equipment accommodation rack when operating the IT equipment or the communication device in the equipment accommodation rack.

  The present invention has been made in view of such circumstances, and by adopting a roll screen as the shielding body, the handling of the shielding body is facilitated, the bending of the shielding body is suppressed, and the equipment storage rack. An object is to provide an air conditioning system for a computer room that can efficiently cool the equipment housed in the housing.

In order to achieve the above object, the present invention proposes the following means.
That is, the air conditioning system for a computer room according to the present invention is installed opposite to both sides with a passage having an internal space under the floor, and supplies air from the front surface and blows out heated air from the upper surface or the rear surface. A cooling rack blown out from the air conditioner, and the cooling air blown out of the air conditioner further flows from the hole provided in the passage onto the floor of the passage; An air conditioning system for a computer room in which the cooling air cools the equipment housed in the equipment housing rack and then flows through the space above the equipment housing rack and is sucked back into the air conditioner. A roll screen that covers a space between the upper surfaces of the equipment-accommodating racks installed on both sides of the passage, and that can partition the passage and a space above the equipment-accommodating rack; A roll-up unit that is attached to any one of the racks so as to be positioned on the upper surface side of the rack so that the roll screen can be wound and pulled out, and when the roll screen is pulled out from the wind-up unit, the roll screen And a guide rail that supports the side portion of the guide.

  In the computer room air conditioning system according to the present invention, the guide rails are disposed between the upper surfaces of the equipment-accommodating racks so as to be positioned on both sides of the drawn roll screen. The interior extending in the direction is configured with a rail body having a slit toward the one direction in a hollow saddle member, and the side portion of the roll screen is located in the slit of the rail body, and travels. It may be possible.

  In the air conditioning system for a computer room according to the present invention, the guide rail may be provided with a storage wall portion whose inside is a wiring space.

  In the air conditioning system for a computer room according to the present invention, a weight bar is attached to the leading end portion of the roll screen in the width direction of the roll screen, both ends of the weight bar are supported by the guide rail, and the It is good also as being able to run on a guide rail.

  In the computer room air conditioning system according to the present invention, the winding unit includes a winding mechanism that pulls and winds the roll screen, and the weight of the weight bar and the frictional force between the weight bar and the guide rail. When the weight bar is held at an arbitrary position on the guide rail, the weight bar may be sized to remain at that position against the pulling force of the winding mechanism.

  In the air conditioning system for a computer room according to the present invention, a plurality of sets of the equipment accommodation racks are installed on both sides of the passage so as to be adjacent to each other, and face each other across the passage. The winding part, the roll screen, and the guide rail may be provided respectively, and the adjacent guide rails may be arranged in close contact with each other.

  In the computer room air conditioning system according to the present invention, when the roll screen is pulled out and the weight bar is brought to the other side of the equipment housing rack, the weight bar is moved to the other side of the equipment housing rack. It is good also as providing the latching mechanism latched to the side.

  In the air conditioning system for a computer room according to the present invention, a roll screen that constitutes a case of the winding unit on the upper surface of the device-accommodating rack arranged opposite to each other in the width direction of the roll screen. A box and a holding box are arranged, one end of each of the guide rails located on both sides of the roll screen is fixed to the roll screen box, and the other end is fixed to the holding box, the roll screen box and the holding Either one of the boxes may be fixed to the equipment housing rack, and the other may be installed so as to be relatively movable in the horizontal direction with respect to the equipment housing rack.

  In the air conditioning system for a computer room according to the present invention, a roll screen that constitutes a case of the winding unit on the upper surface of the device-accommodating rack arranged opposite to each other in the width direction of the roll screen. A box and a holding box are arranged, one end of each of the guide rails located on both sides of the roll screen is fixed to the roll screen box, and the other end is fixed to the holding box and arranged opposite to each other. An instrument placement member that serves as an instrument placement space is fixed to the upper surface of each equipment storage rack, and one of the roll screen box and the holding box is fixed to one upper face side of the instrument placement member. The other instrument is disposed on the other upper surface side of the instrument arrangement member so as to be relatively movable, Inside of, may be luminaire is installed.

  In the computer room air conditioning system according to the present invention, one and the other are arranged such that a plurality of the equipment-accommodating racks are adjacent to each other on both sides of the passage, and are opposed to each other across the passage. The one or both of the roll screen box and the holding box are installed on the upper surface of the one instrument arrangement member, and the other is installed on the upper surface of the other instrument arrangement member, When the height of the equipment storage racks installed so as to be adjacent to each other is different, the height of the equipment arrangement member is adjusted so that the heights of the roll screen box and the holding box are aligned. It is good also as being done.

  In the air conditioning system for a computer room according to the present invention, the width dimension of one set of the roll screen box and the holding box is different from the width dimension of another set of the adjacent roll screen box and the holding box. It is good also as being comprised so that the width dimension of the said equipment accommodation rack which adjoins, and the width dimension of the said roll screen box and the said holding box may be equalized.

According to the air conditioning system for a computer room according to the present invention, when an operator performs maintenance / inspection / maintenance of equipment, the roll screen can be wound up and the roll screen needs to be removed from the rack. Since there is no such thing, it is not necessary to reduce the work load in maintenance / inspection / maintenance of equipment and equipment, to prevent members from falling, and to install the removed roll screen.
Furthermore, according to the air conditioning system for a computer room according to the present invention, since the guide rail for supporting the roll screen is provided, the roll screen is caused by the deflection of the roll screen due to its own weight and the pressure change accompanying the operating state of the air conditioner. Is prevented from bending.

  According to the air conditioning system for a computer room according to the present invention, the guide rail is configured to include a rail body having a slit toward the one direction in a hollow material whose inside extends in one direction, Since the side of the roll screen is located in the slit of the rail body and can travel, there is almost no gap, leakage of cooling air from the air conditioner or exhaust of IT equipment and communication devices Intrusion can be minimized.

  In addition, since the guide rail is provided with a storage wall portion whose inside is a space for wiring, the guide rail can store wiring and the like.

  Further, a weight bar is attached to the leading end portion of the roll screen in the width direction of the roll screen, both ends of the weight bar are supported by the guide rail, and can run on the guide rail. Therefore, the weight bar can prevent the tip of the roll screen from being bent.

  In addition, the winding unit includes a winding mechanism that pulls and winds the roll screen, and the weight of the weight bar and the frictional force between the weight bar and the guide rail are set so that the weight bar is placed on the guide rail. The weight bar can be kept at any position on the guide rail because it is sized to remain at that position against the pulling force of the winding mechanism. Therefore, the position where the roll screen is pulled out can be adjusted, and the leakage of the cooling air from the air conditioner or the intrusion of the exhaust of the IT device or the communication device can be minimized during maintenance.

  In addition, a plurality of the equipment storage racks are installed on both sides of the passage so as to be adjacent to each other, and the winding unit and the roll screen are respectively provided in a plurality of sets of the equipment storage racks facing each other across the passage. Since the guide rails are provided and the adjacent guide rails are arranged in close contact with each other, it is possible to minimize the intrusion of the cooling air in the passage or the exhaust of the IT device or the communication device.

  In addition, since the roll screen is pulled out and the weight bar is brought to the other side of the equipment storage rack, a locking mechanism is provided for locking the weight bar to the equipment storage rack. The roll screen can be prevented from being inadvertently opened, and the passage can be reliably shielded.

  In addition, either one of the roll screen box and the holding box is fixed to the equipment storage rack, and the other is installed so as to be movable relative to the equipment storage rack in the horizontal direction. Even if these racks are displaced by vibration or swinging, they are allowed to be displaced without exerting stress on each other. For this reason, the rack or the like is prevented from being damaged.

  In addition, since a lighting fixture is installed inside the fixture arrangement member that is arranged below the roll screen box and the holding box and fixed to the upper surface of the rack, the lighting fixture brightens the inside of the passage. Can be irradiated.

  In addition, when the heights of the equipment storage racks installed so as to be adjacent to each other are different, the height of the equipment arrangement member is adjusted so that the heights of the roll screen box and the holding box are aligned. Therefore, the roll screen box and the holding box can be arranged across a plurality of racks having different heights.

  Further, the width dimension of the set of the roll screen box and the holding box is configured to be different from the width dimension of the other set of the adjacent roll screen box and the holding box. Since the rack is configured so that the width dimension of the rack is aligned with the width dimension of the roll screen box and the holding box, the width dimension of the roll screen box and the holding box can be selected as appropriate. The roll screen box and the holding box can be arranged so as to coincide with the length.

It is a perspective view which shows schematic structure of the air conditioning system for computer rooms which concerns on the 1st Embodiment of this invention. It is a top view of the roll screen unit which concerns on the 1st Embodiment of this invention. It is sectional drawing of the roll screen unit which concerns on the 1st Embodiment of this invention. It is an expanded sectional view of the roll screen box which concerns on the 1st Embodiment of this invention. It is a perspective view at the time of arrange | positioning on the rack of different height based on the 1st Embodiment of this invention. It is an expanded sectional view of the holding box concerning a 1st embodiment of the present invention. It is an expanded sectional view of the holding box concerning a 1st embodiment of the present invention. It is a perspective view of the guide rail which concerns on the 1st Embodiment of this invention. It is an expanded sectional view of the holding box concerning a 2nd embodiment of the present invention. It is a perspective view of the holding box which concerns on the 2nd Embodiment of this invention.

  Hereinafter, an air conditioning system for a computer room according to a first embodiment of the present invention will be described with reference to the drawings.

As shown in FIG. 1, the computer room air conditioning system 100 is used in a computer room 101 formed in a box shape.
First, the computer room 101 will be described.
The computer room 101 includes a double floor 2 having an internal space 5 under the floor. A passage 4 extending in the longitudinal direction is formed in the double floor 2. The double floor 2 is formed with a rectangular long hole 8 penetrating in the thickness direction. A rectangular plate-shaped perforated panel 7 covering the long hole 8 is fitted over the entire circumference of the edge of the long hole 8. The perforated panel 7 has a plurality of holes penetrating in the thickness direction. Thereby, the internal space 5 under the floor and the space of the passage 4 communicate with each other through the plurality of holes.

Next, the computer room air conditioning system 100 used in the computer room 101 will be described.
The computer room air conditioning system 100 includes a rack (equipment housing rack) 3 and a plurality of air conditioners 6 that are disposed opposite to each other across the passage 4 and are installed adjacent to each other. I have.
The rack 3 is formed in a substantially rectangular parallelepiped box shape and accommodates various devices such as a communication device. These racks 3 are arranged on both sides of the passage 4, and a plurality of these racks 3 are arranged along the longitudinal direction of the passage 4. The rack 3 supplies air in the space of the passage 4 from an air supply port (not shown) formed on the opposing surfaces (front surface 3b) facing each other, and the supplied air is supplied from the upper surface 3a or the rear outlet. It blows out upward or backward.

  Moreover, as shown in FIG. 1, the air conditioning apparatus 6 is formed in the box shape. The air conditioner 6 is arranged on the side of the rack 3 and on one end (right side in FIG. 1) in the longitudinal direction of the passage 4. Then, the air conditioner 6 blows cooling air out of the blowout port on the lower surface 6b, sucks the air flowing in the upper space of the computer room 101 from the suction port on the upper surface 6a, cools it, and then blows out again. It comes to blow out from.

Moreover, the code | symbol 13 shown in FIG. 1 is a wall body which is arrange | positioned at the one end part of the longitudinal direction of the channel | path 4, and divides the space of this channel | path 4 and the external space. The wall 13 and the air conditioner 6 are arranged with a space therebetween. The wall 13 is provided with a door 13a that can be freely opened and closed.
By being configured in this way, the wall 13 blocks the space on the side of the passage 4 and the space on the side of the air conditioner 6, and the cold air blown out from the perforated panel 7 is directly drawn into the air inlet 6 a of the air conditioner 6. Inhalation (prevention of short circuit phenomenon). Therefore, since the cool air blown out from the air conditioner is supplied to the rack 3, leakage can be minimized, so that the cooling efficiency of the air conditioner can be improved.
Further, by providing the door 13a, an operator can enter and exit the passage 4 through the door 13a.

  A wall body 14 having a door 14a that can be opened and closed is also provided at the other end portion (left side in FIG. 1) of the passage 4 in the longitudinal direction. As a result, the exhaust heat exhausted from the rack 3 is prevented from flowing around the other end of the passage 4 and entering the passage 4. Therefore, even the equipment accommodated in the upper part of the rack 3 on the other end side can be sufficiently cooled. In addition, by providing the door 14a, an operator can enter and exit the passage 4 through the door 14a.

  As shown in FIGS. 1 to 3, a roll screen unit 110 is provided between the upper surfaces 3 a of the racks 3 arranged on both sides of the passage 4. The roll screen unit 110 includes a roll screen box 200, two guide rails 300A and 300B, a holding box 400, and a roll screen 500 as main components.

As shown in FIG. 4, the roll screen box 200 has a rectangular cross section and extends in one direction, and a winding shaft 220 is rotatably supported therein. A roll screen 500 is wound around the winding shaft 220 as described later.
The roll screen box 200 is attached to the upper surface 3a of the rack 3 with the following structure.
That is, on the upper surface 3a of the rack 3, a frame 230 having an L-shaped cross section has a bolt (232) and a nut 233 at the lower wall portion 231 with a plate (head joint) interposed on the lower surface side of the lower wall portion. The mounting rubber 240 having a certain thickness is disposed along the rising wall portion 234 of the L-shaped frame. The lower half of the mounting rubber 240 is fixed to the rising wall 234 of the L-shaped frame 230 by bolts 235 and nuts 236, and the upper half of the mounting rubber 240 is raised from the L-shaped frame 230. It protrudes above the wall portion 234 with a certain size. The above-mentioned frame 230 having an L-shaped cross section and the upper plate 290 constitute an instrument arrangement member 230B having an instrument arrangement space 230A inside.
An upper plate 290 is fixed to the upper end portion of the rising wall portion 234. The upper plate 290 has downward bent wall portions 292 and 293 at both ends of the main wall portion 291, and the bent wall portion 293 is fixed to the rising wall portion 234 with screws.
A bent wall portion 237 is formed at the front end portion of the lower wall portion 231 in the L-shaped frame 230, and the bent wall portion 237 and the front end side of the bent wall portion 292 of the upper plate 290 are formed. As shown in FIG. 5, a reinforcing plate 296 and a translucent plate 297 are fixed between them with screws.
In this case, the reinforcing plates 296 are provided at regular intervals in the longitudinal direction of the frame 230 having an L-shaped cross section and the upper plate 290, and the translucent plates 297 are positioned between the reinforcing plates 296. Is provided.
The reinforcing plate 296 constitutes a member having a rectangular cross section together with the frame 230 having an L-shaped cross section and the upper plate 290, and as a whole has sufficient strength to be held by the roll screen unit 110.
The translucent plate 297 is a transparent or translucent plate material such as an acrylic material, and can irradiate light from illumination lamps 239 and 439 described later into the passage 4.
In this embodiment, as shown in FIG. 1, the heights of the racks 3 are the same, but when the racks 3 having different heights are arranged, As shown in FIG. 5, the rack 3 is adjusted by adjusting the height of the rising wall 234 of the frame 230 having an L-shaped cross section and adjusting the height of the reinforcing plate 296 and the light transmitting plate 297. The holding position of the roll screen unit 110 due to the difference in height is a fixed position.
A cushion rubber 250 is disposed on the upper surface of the main wall portion 291 of the upper plate 290, and the cushion rubber 250 is fixed to the upper surface of the main wall portion 291 by screws 238.
The roll screen box 200 is disposed such that the lower surface thereof is in contact with the cushion rubber 250 and one side surface thereof is in contact with the front surface of the upper half of the mounting rubber 240, and one side surface of the roll screen box 200 is disposed on the mounting rubber 240. On the other hand, it is fixed by a bolt 251 and a nut 252.
In the roll screen box 200, the roll screen 500 wound around the winding shaft 220 can be pulled out in the outward horizontal direction from an opening 260 formed on the front surface of the roll screen box 200. In this case, the winding shaft 220 is provided with a helical spring 280 (winding mechanism), and the roll screen 500 is biased in the winding direction.
In the above configuration, the roll screen box 200, the winding shaft 220, and the above-described helical spring 280 constitute a winding unit 270.

As shown in FIG. 6, like the roll screen box 200, the holding box 400 has a rectangular cross section and extends in one direction.
The holding box 400 is disposed on the upper surface 3a side of the rack 3 facing the rack 3 provided with the roll screen box 200 described above.
As shown in FIG. 6, a frame 430 having an L-shaped cross section is arranged on the upper surface 3a of the rack 3, and its lower wall portion 431 is fixed to the upper surface 3a of the rack 3 by bolts 432 and nuts 433, A bent wall portion 493 of the upper plate 490 is fixed to the wall portion 434 with screws. A reinforcing plate 496 and a translucent plate (not shown) are fixed between the bent wall portion 492 of the upper plate 490 and the bent wall portion 437 of the L-shaped frame 430 by screws. The configuration is the same as the configuration on the roll screen box 200 side shown in FIGS. 5 and 6. The frame 430 and the upper plate 490 having an L-shaped cross section constitute an instrument arrangement member 430B having an instrument arrangement space 430A inside.
A sliding plate 420 is fixed to the main wall portion 491 of the upper plate 490 with screws 438.
A cushion rubber 450 is adhered to the lower surface of the holding box 400.
The holding box 400 can move in the horizontal direction on the sliding plate 420.

As shown in FIG. 3, the guide rail 300 </ b> A has one end 301 fixed to the roll screen box 200 and the other end 302 fixed to the holding box 400.
The roll screen box 200, the holding box 400, and the guide rails 300A and 300B are fixed to each other so as to form a rectangular frame as a whole, as shown in FIGS.
In this case, as shown in FIG. 2, one end 300a of one guide rail 300A is fixed to the end portion 200a of the roll screen box 200, and the other end 300b of the guide rail 300A is connected to the end portion 400a of the holding box 400. It is fixed. One end 300 a of the other guide rail 300 B is fixed to the end portion 200 b of the roll screen box 200, and the other end 300 b of the other guide rail 300 B is fixed to the end portion 400 b of the holding box 400.
As shown in FIG. 7, the guide rail 300 </ b> A is a main component of a rail box 310, a rail body 320 disposed inside the rail box 310, and a guide portion 330.
The rail box 310 includes a rail holding wall portion 310A formed in a U-shaped cross section and a storage wall portion 310B formed in the main wall portion 312 of the rail holding wall portion 310A. The opening 311 of the wall 310A is disposed on the side where a roll screen 500 described later is disposed. As shown in FIGS. 7 and 8, the storage wall 310B is a wiring space 315, and wiring such as power lines or signal lines of various equipment is stored in the wiring space 315. Yes. These wirings can be drawn out from the opening 313 of the storage wall 310B. As shown in FIG. 8, a temperature sensor 316 or a fire alarm 317 is provided on the lower surface of the rail box 310.
The rail body 320 includes a base portion 321 extending in the vertical direction and a holding wall portion 322 provided on the side of the base portion. The portion where the holding wall portion 322 is formed extends in one direction. The existing inside is a hollow portion 322a, and the holding wall portion 322 is formed with a slit 323 for communicating the hollow portion 322a outward in the one direction.
The guide portion 330 is fixed to the opening 311 side of the rail box 310, and includes a guide portion 330a located on the upper side and a guide portion 330b located on the lower side. The rail body 320 is fixed to the end of the rail box 310 and the ends of the guide portions 330a and 330b with an adhesive or the like via an elastic member 324 whose upper end and lower end are made of sponge or the like. Yes.
The guide rail 300B is configured similarly to the guide rail 300A.

The roll screen 500 is formed of a non-combustible material such as glass cloth and has flexibility, and as described above, the base end thereof is fixed to the winding shaft 220 in the roll screen box 200, and It is configured to be sequentially wound around the winding shaft 220 from the base end side.
As shown in FIGS. 2 and 7, a weight bar 510 is fixed to the front end side of the roll screen 500. The weight bar 510 is for holding the roll screen 500 between the bar 510a and the bar 510b because the roll screen 500 has flexibility, so that at least a tip portion thereof has a linear shape in one direction. The roll screen 500 is fixed in a state.
In this case, the attachment state of the weight bar 510 and the roll screen 500 is such that both end portions of the roll screen 500 slightly protrude laterally from the weight bar 510 as shown in FIG.
Both side portions of the roll screen 500 are movably disposed in the slits 323 of the rail body 320 in the guide rails 300A and 300B described above. In this case, as shown in FIG. 7, thick portions 501 having a thickness dimension larger than the width dimension of the slit 323 are formed on both sides of the roll screen unit 500, and both sides of the roll screen 500 are slit. It is designed not to escape from H.323.
Further, both ends of the weight bar 510 are movably disposed between the lower end surface of the guide portion 330a and the upper end surface of the guide portion 330b.
Further, as shown in FIGS. 2 and 4, a handle 520 is provided at the center in the left-right direction of the weight bar 510. The handle 520 is used by an operator to pull out the roll screen 500 by pulling out the roll screen 500 from the roll screen box 200. As shown in FIG. 4, a locking member 530 is rotatably attached to the shaft 531 in the vicinity of the handle 520. The locking member 530 includes an operation unit 532 and a locking claw 533.
On the other hand, as shown in FIG. 6, a locked member 460 having a locking claw 461 is fixed to the holding box 400.
When the operator holds the handle 520, pulls out the roll screen 500, and moves the weight bar 510 to the holding box 400, the operator operates the locking member 530 of the weight bar 510 to engage the locking member 530. The pawl 533 can be engaged with the locking pawl 461 of the locked member 460.
Further, the weight of the weight bar 510 and the frictional force between the weight bar 510 and the guide rails 300A and 300B are set larger than the tensile force of the winding unit 270 that pulls the roll screen 500 toward the winding unit 270. The weight bar 510 can remain at an arbitrary position on the guide rails 300A and 300B.

As shown in FIG. 1, the above-described roll screen unit 110 is provided on each upper surface 3 a of a pair of racks 3 facing each other across the passage 4.
In this case, as shown in FIGS. 7 and 8, the guide rails 300 </ b> A and 300 </ b> B adjacent to each roll screen unit 110 are arranged in close contact with each other so that no gap is generated between the roll screens 500. Yes. That is, the storage wall portions 310B of the rail boxes 310 of the guide rails 300A and 300B are closely joined so that air does not flow between the rear end surfaces 314 with the cushion rubber 340 interposed therebetween. Yes. The cushion rubber 340 may be bonded to the rear end surface 314 of the rail box.
4 and 6, illumination lamps (lighting fixtures) 239 and 439 are installed in the fixture arrangement spaces 230A and 430A on the rising wall portions 234 and 434 of the L-shaped frames 230 and 430, respectively. It may be attached, and the illumination lamps 239 and 439 are turned on to illuminate the passage 4.

Next, the cooling effect | action of the computer room air conditioning system 100 in this embodiment is demonstrated.
In the computer room 101 shown in FIG. 1, when the communication apparatus etc. which were accommodated in the rack 3 operate | move, those each apparatus will be heated. Therefore, it is necessary to cool each operating device.
Therefore, cooling air is blown out into the internal space 5 from the outlet of the lower surface 6 b of the air conditioner 6. This cooling air is blown upward (space of the passage 4) from the plurality of holes of the perforated panel 7 through the internal space 5. Then, the cooling air sent to the space of the passage 4 is supplied from the air supply port of the front surface 3b of the rack 3, and cools each device by heat exchange action. Thereby, the supplied air is warmed and becomes hot air. The hot air is blown upward from the upper surface 3a of the rack 3 or the air outlet on the rear surface. Further, the hot air blown out flows in the upper space of the computer room 101 to one end side along the longitudinal direction of the passage 4 and is sucked and cooled from the suction port of the upper surface 6a of the air conditioner 6. Then, it blows out again from the blower outlet of the lower surface 6b.
Thereby, the flow and temperature of the air in the computer room 101 are controlled, and the favorable operation state of each apparatus is maintained.

By the way, conventionally, the hot air blown from the upper surface 3 a or the rear surface of the rack 3 is returned to the space of the passage 4 and supplied from the front surface 3 b of the rack 3 before being supplied to the air conditioner 6. There was a case.
However, in the present embodiment, the roll screen unit 110 is disposed between the upper surfaces 3 a of the racks 3 facing each other with the passage 4 interposed therebetween, and the upper space of the rack 3 and the space of the passage 4 are partitioned. Therefore, the hot air on the upper surface 3 a of the rack 3 is restricted from flowing into the space of the passage 4. That is, the space of the passage 4 is always filled with the cooling air from the floor of the double floor 2 to the shield 11.

Here, in the computer room air conditioning system 100, the roll screen unit 110 is disposed between the upper surfaces 3 a of the racks 3 disposed on both sides of the passage 4, and the roll screen unit 110 causes the upper portion of the passage 4 and the rack 3 to be located above. Can be partitioned. In this way, when partitioned, the air blown from the rack 3 is prevented from being recirculated into the passage 4 and sucked into the rack 3 and reliably sent to the air conditioner 6. The cooling efficiency is improved.
When operating the computer room air conditioning system 100, the operator holds the handle 520 provided at the tip of the roll screen 500 and operates the roll screen unit 110 to wind the roll screen 500. The roll screen 500 covers the space between the upper surfaces 3a of the racks 3 withdrawn from the take-up portion 270. Then, the operating portion 532 of the locking member 530 is operated to lock the locking claw 533 with the locking claw 461 of the locked member 460.
In this state, the roll screen 500 covers the space between the upper surfaces 3 a of the racks 3, and the both ends thereof are supported by the guide rails 300 </ b> A and 300 </ b> B. Fixed to.
In this case, since both ends of the roll screen 500 are inserted into the slits 323 of the rail main body 320 of the guide rails 300A and 300B, the gap between the guide rails 300A and 300B and the roll screen 500 is very small. It will be a thing.
Moreover, since the adjacent guide rails 300A and 300B are closely arranged in the roll screen unit 110 provided between the racks 3, no gap or the like is generated between them.
Therefore, when the air conditioner 100 is operated as described above, the space above the passage 4 and the rack 3 is surely partitioned by the roll screen 500 to prevent a high temperature failure of the IT device, and the air conditioner Cooling efficiency is improved.

In addition, during the operation of the computer room air conditioning system 100, the operator operates the handle 520 when performing maintenance, inspection, or maintenance on the equipment in the computer room 101 located above the rack 3. Then, the roll screen 500 is moved into the winding unit 270 so that the roll screen 500 is wound on the winding shaft 220.
At this time, high-temperature exhaust enters the passage from the opened part, but the amount of movement of the roll screen 500 is set appropriately, and the opening area of the roll screen unit 110 is minimized by the drawing position of the roll screen 500. By limiting to the limit, the risk of high temperature failure of IT equipment can be reduced.
That is, when the weight bar 510 is moved, the weight of the weight bar 510 and the frictional force between the weight bar 510 and the guide rails 300A and 300B are set to be larger than the tensile force of the winding portion 270. The position of the weight bar 510 can be set to an arbitrary position.
Further, in preparation for the case where the locking claw 461 is disengaged from the locked member 460 due to an external force such as an earthquake and an acceleration exceeding the frictional force is applied, a stopper (not shown) or the like is used at a predetermined position. You may provide the mechanism which stops.
In the winding unit 270, the roll screen 500 is wound by a helical spring 280.

  In the computer room air conditioning system 100, the roll screen box 200 of the roll screen unit 110 is attached to the upper surface of the rack 3 via the mounting rubber 240 when vibrations are applied to equipment including the rack 3 due to an earthquake or the like. The holding box 400 is fixed in the horizontal direction with respect to the L-shaped frame 430 fixed to the upper surface 3a of the rack 3 on the other side. Since it is movable, each part of the rack 3 or the roll screen unit 110 is not damaged or destroyed by vibration.

According to this computer room air conditioning system 100, since the roll screen unit 110 having the roll screen 500 is adopted as the shield of the passage 4 of the computer room 101, the screen is shielded compared to the conventional panel-like shield. The body is lighter and easier to handle and can provide reliable shielding.
When an operator performs maintenance / inspection / maintenance of equipment in the computer room 101, the roll screen 500 can be wound or pulled out, and the wound roll screen 500 can be taken into the winding unit 270. Since it can be accommodated, it is not necessary to remove the roll screen 500 from the upper surface 3 a of the rack 3. Therefore, it is not necessary to reduce the work load in maintenance / inspection / maintenance of facility equipment, and the installation space for the removed roll screen is unnecessary, and the operator can easily open and close the roll screen 500.
Further, since the guide rails 300A and 300B for supporting the roll screen 500 are provided, the roll screen 500 is prevented from being bent due to its own weight, and the roll screen 500 is not bent due to the pressure change caused by the operating state of the air conditioner 6. . Further, since the roll screen 500 is prevented from being bent, the roll screen 500 does not hinder the opening and closing of the door provided on the front surface 3b of the equipment housing rack 3.

  Each of the guide rails 300A and 300B includes a rail box 310, a rail main body 320 disposed inside the rail box 310, and a guide portion 330. The rail main body 320 has a base portion 321 extending in the vertical direction. And a holding wall portion 322 provided on the side of the base, and the portion where the holding wall portion 322 is formed has a hollow portion 322a inside extending in one direction, Since the holding wall portion 322 is provided with a slit 323 for communicating the hollow portion 322a outwardly in the one direction, the side portion of the roll screen 500 is positioned in the slit 323 of the rail body 320. As a result, it is possible to travel, so there is almost no gap, and cooling air leaks from the air conditioner 6 or exhaust of IT equipment or communication equipment. It can be suppressed to a minimum.

  Further, a weight bar 510 is attached to the leading end of the roll screen 500 in the width direction of the roll screen 500, both ends of the weight bar 510 are supported by the guide rails 300A and 300B, and on the guide rails 300A and 300B. Therefore, the weight bar 510 can prevent the tip of the roll screen 500 from being bent.

  The winding unit 270 includes a winding mechanism 270 that pulls and rolls the roll screen 500. The weight of the weight bar 510 and the frictional force between the weight bar 510 and the guide rails 300A and 300B are determined by the weight bar 510. Is held at an arbitrary position on the guide rails 300A and 300B, the weight bar 510 is on the guide rails 300A and 300B. Can stay in any position. Therefore, the position where the roll screen 500 is pulled out can be adjusted, and the leakage of cooling air in the passage 4 or the intrusion of the exhaust of the IT equipment or the communication device can be minimized.

Moreover, in this embodiment, since the adjacent roll screen units 110 arrange the guide rails 300A and 300B in close contact with each other, the cooling air in the passage 4 is prevented from leaking outside.
Therefore, the cooling air in the passage 4 is always sucked into the rack 3 without leaking to the outside, so that even IT equipment and communication devices housed in the rack 3 can be sufficiently cooled, and the air Since it is not necessary to supply excessive cold air from the conditioner, the cooling efficiency of the air conditioner is improved.

  Further, when the roll screen 500 is pulled out from the roll screen box 200 and the weight bar 510 disposed at the tip of the roll screen 500 reaches the rack 3 on the other side, the weight bar 510 is attached to the rack 3. Since the locking member 530 that is locked to the locking member 460 is provided, the roll screen 500 can be prevented from being opened carelessly, and the passage 4 can be reliably shielded.

In addition, since the roll screen unit 110 is installed so that the racks 3 on both sides sandwiching the passage 4 can be moved relative to each other, even if these racks 3 are displaced by vibration or swing due to an earthquake or the like, they exert stress on each other. And these displacements are allowed. This prevents the rack 3 or the roll screen unit 110 from being damaged.
That is, for example, the racks 3 vibrate or swing due to an earthquake or the like as compared with the case where the racks 3 arranged on both sides with the passage 4 are fixedly connected to each other so as not to move relative to each other using the roll screen unit 110. Therefore, it is possible to reliably prevent the mutual deformation of the roll screen unit 110 and the roll screen unit 110 from being deformed and damaged.
Furthermore, since the roll screen box 200 of the roll screen unit 110 is fixed to the upper surface 3a of the rack 3 on one side opposite to the passage 4 via the mounting rubber 240, the roll screen after the earthquake has converged. The unit 110 can be returned to the substantially same position as the initial position in the stationary state by the mounting rubber 240.

9 and 10 are diagrams showing another embodiment of the present application.
In these drawings, the same components as those shown in FIG. 6 in the embodiment described above are denoted by the same reference numerals, and the description thereof is omitted.
This embodiment differs from that shown in FIG. 6 in that, as shown in FIGS. 9 and 10, the upper plate 490 and another newly provided upper plate 610 are replaced with the sliding plate shown in FIG. It is. That is, as shown in FIGS. 9 and 10, the upper plate 3 620 and another upper plate 610 are provided on the upper surface 3 a of the rack 3 on the rear end side of the frame 430 having an L-shaped cross section. Yes.
The other upper plate 610 is formed by forming bent wall portions 612 and 623 at both ends of the main wall portion 611, and the bent wall portion 612 includes the bent wall portion 413 of the upper plate 490 and an L-shaped cross section. The frame 430 is fixed to the rising wall 434 by bolts 494 and nuts 495.
Further, the rising plate 620 has a bent wall portion 622 formed at the lower end portion of the main wall portion 621, and the bent wall portion 622 is in contact with the upper surface 3a of the rack 3, The upper plate 610 is fixed to the bent wall portion 613 with bolts 614 and nuts 615.
In this configuration, the upper plate 490 and the other upper plate 610 serve as the sliding plate 420 shown in FIG. 6, and the cushion rubber 450 of the holding box 400 is used for the upper plate 490 and the other upper plate 610. On the top surface, it can move relative to the horizontal direction.
Therefore, also in this embodiment, when vibration is applied to each part due to an earthquake or the like, the roll screen unit or the like can be prevented from being destroyed by the above relative movement.

  Further, in the above-described embodiment, the width dimensions of the roll screen box 200 and the holding box 400 are made to substantially match the width dimension of the rack 3, but in addition to this structure, the roll screen box 200 and the holding box 400 are arranged. May be installed so as to straddle each rack 3 with two width dimensions, and by changing these dimensions appropriately, the positional deviation of adjacent racks 3 or different width dimensions When the racks 3 are arranged adjacent to each other, the rack 3 may be configured to fit the height of the entire rack 3.

2 Double floor (floor)
3 racks (equipment racks)
3a upper surface 3b front surface 4 passage 5 internal space 6 air conditioner 8 long hole (hole)
DESCRIPTION OF SYMBOLS 100 Computer room air conditioning system 110 Roll screen unit 200 Roll screen box 220 Winding shaft 230, 430 L-shaped cross section frame 240 Mounting rubber 250, 450 Cushion rubber 270 Winding part 290, 490 Upper plate 300A, 300B Guide rail 310 Rail box 320 Rail body 330, 330a, 330b Guide portion 340 Cushion rubber 400 Holding box 420 Sliding plate 460 Locked member 500 Roll screen 510 Weight bar 520 Handle 530 Locking member 610 Other upper plate 620 Standing plate

Claims (11)

A device housing rack that is installed opposite to both sides across a passage having an internal space under the floor, supplies air from the front surface, and blows out heated air from the upper surface or the back surface, and an air conditioner, and the air The cooling air blown out from the conditioner flows in the internal space, and further flows on the floor of the passage from the hole provided in the passage, and the cooling air is accommodated in the equipment accommodation rack. An air conditioning system for a computer room that cools the equipment, flows through the space above the equipment housing rack, and is sucked again into the air conditioner,
A roll screen that covers the space between the upper surfaces of the equipment storage racks installed on both sides of the passage, and allows the passage and the space above the equipment storage rack to be partitioned;
A winding unit that is attached to any one of the equipment-accommodating racks so as to be positioned on the upper surface thereof, and that winds up and draws out the roll screen; and
A guide rail that supports a side portion of the roll screen when the roll screen is pulled out from the winding unit;
An air conditioning system for a computer room characterized by comprising: An air conditioning system for a computer room according to claim 1,
The guide rails are arranged between the upper surfaces of the equipment-accommodating racks so as to be positioned on both sides of the drawn roll screen,
The guide rail is configured to include a rail main body having a slit toward the one direction in a hollow material that is hollow in one direction,
An air conditioning system for a computer room characterized in that a side portion of the roll screen is located in the slit of the rail body and is capable of traveling. An air conditioning system for a computer room according to claim 2,
An air conditioning system for a computer room, wherein the guide rail is provided with a storage wall portion having a wiring space inside. An air conditioning system for a computer room according to claim 2 or 3,
At the leading end of the roll screen, a weight bar is attached in the width direction of the roll screen,
An air conditioning system for a computer room, characterized in that both ends of the weight bar are supported by the guide rail and can run on the guide rail. An air conditioning system for a computer room according to claim 4,
The winding unit includes a winding mechanism that pulls and winds the roll screen,
The weight of the weight bar and the frictional force between the weight bar and the guide rail are measured against the tensile force of the winding mechanism when the weight bar is held at an arbitrary position on the guide rail. An air conditioning system for a computer room, characterized in that it is small enough. An air conditioning system for a computer room according to claim 2,
A plurality of the equipment storage racks are installed on both sides of the passage so as to be adjacent to each other,
The winding unit, the roll screen, and the guide rail are respectively provided in a plurality of sets of the equipment storage racks that face each other across the passage,
An air conditioning system for a computer room, wherein the adjacent guide rails are arranged in close contact with each other. An air conditioning system for a computer room according to claim 4 or 5,
When the roll screen is pulled out and the weight bar reaches the other side of the equipment storage rack,
An air conditioning system for a computer room, comprising a locking mechanism for locking the weight bar to the other side of the equipment storage rack. An air conditioning system for a computer room according to any one of claims 1 to 7,
A roll screen box and a holding box that constitute a case of the winding unit are arranged on the upper surface of the device-accommodating rack arranged facing each other in the width direction of the roll screen,
One end of each guide rail located on both sides of the roll screen is fixed to the roll screen box, and the other end is fixed to the holding box,
One of the roll screen box and the holding box is fixed to the equipment housing rack, and the other is installed so as to be movable relative to the equipment housing rack in the horizontal direction. Room air conditioning system. An air conditioning system for a computer room according to any one of claims 1 to 7,
A roll screen box and a holding box that constitute a case of the winding unit are arranged on the upper surface of the device-accommodating rack arranged facing each other in the width direction of the roll screen,
One end of each guide rail located on both sides of the roll screen is fixed to the roll screen box, and the other end is fixed to the holding box,
On the upper surface of the equipment-accommodating rack arranged opposite to each other, an appliance arrangement member that becomes an appliance arrangement space is fixed.
Either one of the roll screen box and the holding box is fixed to one upper surface side of the instrument arrangement member, and the other is installed to be relatively movable on the other upper surface side of the instrument arrangement member,
An air conditioning system for a computer room, wherein a lighting fixture is installed inside each appliance arrangement member. A computer room air conditioning system according to any one of claims 2 to 9,
A plurality of the equipment storage racks are arranged so as to be adjacent to each other on both sides of the passage,
And one and the other instrument arrangement member arranged opposite to each other across the passage is fixed,
Either one of the roll screen box and the holding box is installed on the upper surface of the one instrument arrangement member, and the other is installed on the upper surface of the other instrument arrangement member,
When the plurality of equipment storage racks installed adjacent to each other have different heights, the height of the equipment arrangement member is adjusted so that the heights of the roll screen box and the holding box are aligned. An air conditioning system for a computer room characterized by being configured. An air conditioning system for a computer room according to claim 10,
A width dimension of a set of the roll screen box and the holding box is configured to be different from a width dimension of the other adjacent set of the roll screen box and the holding box,
An air conditioning system for a computer room, characterized in that the width dimensions of the adjacent equipment storage racks are aligned with the width dimensions of the roll screen box and the holding box.

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