JPH07243751A - Fire-resisting structure with heat insulation door of opening of low-temperature facility - Google Patents

Abstract

PURPOSE:To obtain a door structure having fire-resisting performance while obtaining high heat insulation and hermetical sealability by externally blocking an end sealing member, a rear end side sealing member and a leakage preventing member with an end side closing element, a rear end side closing element and a leakage preventing member closing element when a heat insulation door is closed. CONSTITUTION:An opening 2 opened at a wall is freely openable by a heat insulation door 3 which is laterally slid along the wall. A leakage preventing member 12 which is brought into close contact with an inside upper part 11 of the door 3 when the door 3 is closed laterally of an upper peripheral edge 10 of the opening is mounted, and a heat insulation end side closing element 13 for closing an end side sealing member 6 from outside is provided longitudinally of a lateral end 4 of the door 3 and a lateral end 5 of the opening 2. A heat insulation rear end side closing element 14 for closing a rear end side sealing member 9 from outside is provided longitudinally of a lateral rear end of the door 3 and a lateral rear end 8 of the opening 2, and a leakage preventing member closing element 15 for closing the member 12 from outside is provided at an upper peripheral edge 10 of the opening 2 and the inside upper part of the door 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is attached to a low temperature storage warehouse for refrigerating or freezing fresh vegetables, fresh fish, etc., and other low temperature facility openings (eg entrance / exit) where it is necessary to keep room temperature low. The present invention relates to a fireproof structure of a heat insulating door, and particularly to a fireproof structure of a closed structure that closes a gap between the heat insulating door and an opening.

[0002]

2. Description of the Related Art Conventionally, there are various types of doors attached to a low temperature facility, and a sliding type door is shown in FIG.
The structures shown in to 9 are general. In the door shown in FIG. 6, two heat insulating doors C are slid sideways (in the XX direction of FIG. 6) and are opened and closed by a drive motor W by suspending an opening B opened on a wall surface A of a low temperature facility on a guide rail U. I am doing it. In this case, when the heat insulating door C is closed as shown in FIG. 7, a resin (neoprene rubber or the like) contact member E abuts on the door-stop portion D to seal the two heat insulating doors C. In addition, among the gaps between the heat insulating door C and the opening B when the door C is closed,
The gap K under the heat insulating door C is shielded by the blade-shaped resin sealing member L as shown in FIG. 8, and the gap M on the heat insulating door C is formed with the round bar-shaped resin sealing member O as shown in FIG. It is shielded by the blade-shaped resin sealing member P, and the lateral gap N of the heat insulating door C is shielded by the round bar-shaped resin sealing member O and the blade-shaped resin sealing member P as shown in FIG. It

As shown in FIGS. 8 and 9, the heat-insulating door C has a urethane panel S having excellent heat-insulating properties arranged inside a wooden frame R, and both surfaces of the panel made up of the wooden frame R and the urethane panel S. An iron plate T is attached to the structure, and as shown in FIG. 8, a wooden frame R is provided with a suspension fitting V for suspending the heat insulating door C on the guide rail U. The suspension metal fitting V is connected to a chain (not shown) arranged along the guide rail U, and the open / close switch Z provided on the heat insulation door C is operated to drive the drive motor W to move the chain to the arrow X in FIG. When driven in the -X direction, the heat insulating door C moves in the arrow XX direction to automatically open and close.

There is also a door as shown in FIGS.
This is so that an opening B opened on the wall surface A of the low temperature facility is hung by a guide rail U and slides sideways (in the XX direction in FIG. 10) to open and close by a drive motor W. . In this case, the heat insulating door C overlaps with each other when closed as shown in FIG.
A resin-made (neoprene rubber or the like) contact member E is in close contact with the widthwise end of the member to seal the gap. Further, among the gaps between the heat insulating door C and the opening B when the door C is closed, the gap K below the heat insulating door C is shielded by the blade-shaped resin sealing member L (Fig. 8), the gap M above the heat insulating door C is shielded by the resin sealing member O in the shape of a round bar and the resin leak preventing member P in the shape of a blade (see FIG. 8), and the heat insulating door C
The gap N on the side thereof is shielded by the round bar-shaped resin sealing member O and the blade-shaped resin sealing member P (see FIG. 9).

[0005]

The doors shown in FIGS. 6 to 9 and the doors shown in FIGS. 10 and 11 have a high heat insulating property of the heat insulating door C itself and are made of resin provided in various places of the door C. Cooling measures are taken due to the airtightness of the close contact member E, the leak preventing member L, the seal member O, the leak preventing member P, etc. However, since no fire preventive measures are taken against the fire, the following problems occur when a fire occurs. Will happen.

[0006] Even if the heat-insulating door C is closed, the resin-made contact member E, the leakage member L, the seal member O, and the leakage member P provided at various places on the door C are still exposed to the outside, so that a fire occurs. These are immediately extinguished by flames and heat, and even if the heat insulating door C is closed, the fire spreads from the gap between the heat insulating door C and the opening B and the spread of fire cannot be stopped. ． Since the wooden door frame R of the heat insulating door C is exposed at the edge, if this part is burned down, the suspension metal fittings V attached to this wooden door frame R will come off, and the heat insulating door C will become a guide rail. It will be out of U. In some cases, the heat insulating door B collapses and the opening B is completely opened. Therefore, the spread of fire cannot be stopped.

It is an object of the present invention to provide a door structure for a low temperature facility which has high heat insulation and airtightness for keeping the temperature low, and at the same time has high fireproof performance against fire.

[0008]

As shown in FIGS. 3 to 5, the fireproof structure by the heat insulating door of the opening of the low temperature facility according to claim 1 of the present invention is an opening formed on the wall surface 1 of the low temperature facility. 2 can be freely opened and closed by a single heat insulating door 3 that slides laterally along the wall surface 1, and when the heat insulating door 3 is closed, the width direction tip 4 of the heat insulating door 3 and the width direction tip of the opening 2 overlap each other. A front end side contact member 6 is provided to seal the both and / or one of the portions 5 in the vertical direction, and the width direction rear end portion 7 of the heat insulating door 3 and the width direction rear end portion 8 of the opening 2 are provided. A rear end side contact member 9 is provided to seal the both in either or both longitudinal directions, and when the heat insulating door 3 is closed in the width direction of the upper peripheral edge 10 of the opening 2, the inner surface side upper portion of the heat insulating door 3 is closed. A leak preventing member 12 which is in close contact with the heat insulating door 3 is attached to the heat insulating door 3. Heat resistance of the distal closure 13 in both or either of the longitudinal closing the distal end side contact member 6 from the outside are provided in the width direction leading end portion 5, the insulating door 3
A heat-resistant rear end side closing member 14 for closing the rear end side contact member 9 from the outside in the longitudinal direction of the width direction rear end part 7 and / or the width direction rear end part 8 of the opening 2 or in the longitudinal direction. A sealing member closing body 15 for closing the sealing member 12 from the outside is provided on either or both of the upper peripheral edge 10 of the opening 2 and the inner surface side upper portion 11 of the heat insulating door 3. It is a feature.

As shown in FIGS. 1 to 4, the fireproof structure using the heat insulating door at the opening of the low temperature facility according to claim 2 of the present invention is as follows.
Open the opening 2 on the wall 1 of the low temperature facility,
The two heat insulating doors 3 that slide laterally along the heat insulating doors 3 can be freely opened and closed, and when the heat insulating doors 3 are closed, both of the door contact portions 20 on the front end side of the heat insulating doors 3 and / or the vertical direction thereof. Adhesive member 2 for sealing between the two door contact parts 20
1 is provided, and the widthwise rear end portion 7 of each heat insulating door 3 and the widthwise rear end portion 8 of the opening 2 or either of the widthwise rear end portions 8 vertically seals both end portions 7, 8 between the rear end sides. A close contact member 9 is provided, and when the heat insulating door 3 is closed in the width direction of the upper peripheral edge 10 of the opening 2, the leak preventing member 12 is attached to the inner surface side upper portion 11 of each heat insulating door 3, and the both or A heat-resistant door stop portion side closing body 22 that closes the contact member 21 from the outside is provided in the vertical direction of the door contact portion 20 of any of the heat insulating doors 3, and the width direction rear end portion 7 of the heat insulating door 3 is provided. A heat-resistant rear end side closing body 14 for closing the rear end side contact member 9 from the outside in the longitudinal direction with respect to the width direction rear end part 8 of the opening 2 or in any one of the longitudinal directions.
And the upper peripheral edge 10 of the opening 2 and / or the inner surface side upper portion 11 of the heat insulating door 3 is provided with a sealing member closing body 15 for closing the sealing member 12 from the outside. It is characterized by.

[0010]

In the fireproof structure by the heat insulating door of the opening of the low temperature facility according to claim 1 of the present invention, the width direction tip portion 4 and the opening of the heat insulating door 3 which overlap each other when the heat insulating door 3 is closed as shown in FIG. A front end side contact member 6 is provided to vertically and / or vertically seal the width direction front end portion 5 of the portion 2, and the width direction front end portion 4 of the heat insulating door 3 and the opening portion 2 are provided. Since a heat-resistant tip-side closing body 13 that closes the tip-side contact member 6 from the outside is provided on either or both of the width-direction tip portions 5 of the above, the heat-tightness of this portion and fire Fire protection and both are satisfied. Further, as shown in FIG. 4, a rear end side contact member 9 for sealing the widthwise rear end portion 7 of the heat insulating door 3 and the widthwise rear end portion 8 of the opening 2 or one of them in the longitudinal direction is provided. In addition, the rear end side contact member 9 is closed from the outside in the longitudinal direction of the width direction rear end portion 7 of the heat insulating door 3 and / or the width direction rear end portion 8 of the opening 2. Heat-resistant rear end side closing body 14
Since this is provided, both the airtightness of this part and the fireproof performance against fire are satisfied. Further, as shown in FIG. 3, a leak preventing member 12 is attached which is in close contact with the inner surface side upper part 11 of the heat insulating door 3 when the heat insulating door 3 is closed in the width direction of the upper peripheral edge 10 of the opening 2. The airtightness and the fire of this portion are provided because the sealing member closing body 15 for closing the sealing member 12 from the outside is provided on either or both of the upper peripheral edge 10 and the inner surface side upper portion 11 of the heat insulating door 3. The fire protection performance against is both satisfied. As described above, since the fireproof structure is applied to the heat insulating door at the opening, the spread of fire can be prevented.

In the fireproof structure by the heat insulating doors at the opening of the low temperature facility according to claim 2 of the present invention, the door stop portions on the leading end sides of both heat insulating doors 3 that abut each other when the heat insulating doors 3 are closed as shown in FIG. Both doors 20 and / or one of the two vertical contact parts 2
A heat-resistant door stop portion side closing body which is provided with a close contact member 21 for sealing the space between 0 and further closes the close contact member 21 from the outside in the longitudinal direction of the door contact portion 20 of either or both of the heat insulating doors 3. Since 22 is provided, both the airtightness of this part and the fireproof performance against fire are satisfied.
Further, as shown in FIG. 4, both or both of the width direction rear end portions 7 of the respective heat insulating doors 3 and the width direction rear end portions 8 of the openings 2 or any one of the rear ends of the both ends 7 in the vertical direction are hermetically sealed. A side contact member 9 is provided, and moreover, the width direction rear end portion 7 of the heat insulating door 3 and / or the width direction rear end portion 8 of the opening 2 is vertically and / or vertically arranged on the rear end side contact member 9. Since the heat-resistant rear-end side closing body 14 that closes the outer wall is provided, both the airtightness of this portion and the fire protection performance against fire are satisfied.
Further, as shown in FIG. 3, when the heat insulating doors 3 are closed in the width direction of the upper peripheral edge 10 of the opening 2, the inner side upper portions 1 of the respective heat insulating doors 3 are closed.
1. A leak preventing member 12 which is in close contact with the seal member 1 is attached, and moreover, the leak preventing member 12 is blocked from the outside by the upper peripheral edge 10 of the opening 2 and / or the inner surface side upper portion 11 of the heat insulating door 3. Since the member closing body 15 is provided, both the airtightness of this portion and the fireproof performance against fire are satisfied. As described above, since the fireproof structure is applied to the heat insulating door at the opening, the spread of fire can be prevented.

[0012]

[Embodiment 1] An embodiment of a fireproof structure using a heat insulating door at an opening of a low temperature facility according to the present invention will be described in detail below with reference to FIGS. FIG. 1 is a front view showing the whole of this embodiment. As shown in this figure, in this door structure, two guide rails 2 are provided above the opening 2 that is opened in the wall surface 1 of the low temperature facility.
5 are attached, and the heat insulating doors 3 are attached to the respective guide rails 25 one by one.

As shown in FIGS. 2 to 4, the heat insulating door 3 has an iron frame (frame) 26 made of a steel frame having a substantially concave cross section.
Place a urethane panel 27 with excellent heat insulation inside the
This is sandwiched between two iron plates 28 so that the urethane panel 27 is not exposed and is formed into a panel shape. Further, two suspension fittings 29 for attaching the doors 3 to the guide rails 25 are provided on the iron frame 26 above each heat insulating door 3 so as to project therefrom. As shown in FIG. 3, the suspension fitting 29 is provided with a roller 30 on the upper portion thereof, which is the guide rail 25.
The guide rail 25 is locked so that it does not fall out, and can travel in the guide rail 25 along its longitudinal direction.

Two guide rails 25 are attached to the upper part of the opening 2 so as to be divided into right and left. As shown in FIG. 1, the one on the left side facing the front of the door is downward to the right and the one on the right side. Are attached so as to be slanted to the left, and the guide rails 25 are attached so that the lower end of the guide rail 25 is closer to the wall surface 1 and the upper end of the guide rail 25 is away from the wall surface 1. Therefore, the heat insulating door 3 attached to the left guide rail 25 is easily moved to the right due to its weight, and is gradually closer to the wall surface 1 as it is moved to the right. On the contrary, the heat insulating door 3 attached to the right guide rail 25 is easily moved to the left due to its weight, and gradually approaches the wall surface 1 as it moves to the left.
That is, both of the heat insulating doors 3 are naturally closed when the hands are released after opening, and gradually close to the wall surface 1 while closing. The inclination of the guide rail 25 is 1/40
The degree is good.

The suspension fitting 29 attached to the guide rail 25 is connected to one endless chain 31 arranged along the guide rail 25. The chain 31 hangs over a pair of sprocket gears 32 and 33 arranged on both outer sides of the opening 2 so as to turn back and forth the sprocket gear 33 connected to a drive motor (driving device) 34. As a result, the endless chain 31 can be driven in the arrow a direction / arrow b direction. By the way, the suspension fitting 29 attached to the left heat insulation door 3 is connected to the one that passes through the upper side of the folded back endless chain 31, and the suspension fitting 29 attached to the right heat insulation door 3 is folded back to the endless chain 31. It is designed to be connected to the one passing through the lower side, and when the endless chain 31 is rotated in the direction of arrow a, the left heat insulating door 3 moves to the right side, and the right heat insulating door 3 moves to the left side. When the endless chain 31 is rotated in the direction of the arrow b, the heat insulating door 3 on the left side moves to the left side, and the heat insulating door 3 on the right side moves to the right side to open the opening 2 respectively. There is.

The drive of the endless chain 31 by the drive motor 34 is controlled by a control box 35 provided above the opening 2. The control box 35 senses the state of a lever-type opening / closing switch 36 installed in front of the heat insulating door 3, and when a door opening command is input through the switch 36, the heat insulating door 3 is opened and the door is closed. Is input, the heat insulating door 3 is closed.
Further, while the heat insulating door 3 is opened, the driving force of the drive motor 34 continues to work, so that the heat insulating door 3 which is naturally closed can be forcibly held in the open state. is there. Therefore, when the driving force of the drive motor 34 disappears due to a power failure, the adiabatic door 3 automatically closes.

Each heat insulating door 3 is provided with a weight 40 for moving the left heat insulating door 3 to the right and the right heat insulating door 3 to the left. One weight 40 is provided on each of the left and right sides of the opening 2, and the left weight 40 is connected to the right heat insulating door 3 via the wire 42 hung on the pulley 41, while the right weight 40 is connected to the pulley 43. Wire 44
Is connected to the heat insulating door 3 on the right side. This weight 4
0 is for assisting in facilitating the closing of the door even when the door is difficult to close only by the inclination of the guide rail 25.

FIG. 2 shows a door stop portion 20 of the heat insulating door 3.
It is sectional drawing which showed. As shown in this figure, a metal square member 46 and a contact member (packing or the like) 21 made of neoprene rubber are attached to the door-contact portion 20 of each heat insulating door 3,
When the heat insulating door 3 is closed, the metal square member 46 and the contact member 21 are in close contact with each other so that the door contact portions 20 are in close contact with each other.
In addition, a heat-resistant door stop portion side closing body 22 is attached to the door contact portion 20 of each heat insulating door 3 so as to cover the metal square member 46 and the contact member 21. This door stop side blocker 22
Are attached to the left and right heat insulation doors 3 one by one, and the left heat insulation door 3 is attached to the back side thereof, and the right heat insulation door 3 is attached.
Then, it is attached to the surface side. It should be noted that both of the door stop portion side closing bodies 22 may be attached to one of the heat insulating doors 3, or the iron plate 28 forming the heat insulating door 3 may be formed to project to the door contact portion 20 side. May be.

A detection sensor 47 for detecting the closing of the heat insulating door 3 is attached to the front end of the door-stop portion side closing body 22. The sensor 47 is connected to a control box 35 that controls the drive motor 34. When the sensor 47 outputs a detection signal for detecting "closed" of the heat insulation door 3, the control box 35 causes the drive motor 3 to operate.
Stop 4 As a result, it is possible to prevent the drive motor 34 from being wasted even if the door is closed.

FIG. 3 is a vertical sectional view of the heat insulating door 3. In addition to the suspension fitting 29, a metal spacer (sealing member closing body 15) 50 is attached to the iron frame 26 on the inner surface side upper portion 11 of the heat insulating door 3. Then, another metal spacer (sealing member closing body 15) 52 is attached to the horizontal frame 51 on the upper peripheral edge 10 of the opening 2 so as to face the metal spacer 50. Both spacers 50 are provided on the surface of the metal spacer 52.
Sealing member (packing) for closing the gap between 52
Three 12 are attached. Further, on the upper edge of the metal spacer 50, a metal plate (leak member closing body 15) 55 for preventing heat and heat from being transmitted to the leak member 12 is attached, and the metal plate 55 and the opening 2 side are attached. A clearance is provided between the metal spacer 52 and the metal spacer 52 to the extent that sliding of the heat insulating door 3 is not hindered. On the lower edge of the metal spacer 52, another metal plate (leakage member closing body 15) 56 for preventing heat and heat from being transmitted to the leakage member 12 is attached. A clearance is provided between the metal spacer 50 on the side of the door 3 and the heat insulating door 3 so as not to hinder sliding. These metal plates 55 and 56 close the gap formed between the heat insulating door 3 and the opening 2, and close the leak preventing member 12 from the outside.

Two blade-like rubber packings 57 are attached to the lower portion of the heat insulating door 3. This rubber packing 57 is in contact with the floor and completely closes the gap formed between the heat insulating door 3 and the floor. Thin metal plates 58 are attached to both sides of the rubber packing 57 so as to cover the packing 57 from the outside. The metal plate 58 projects almost straight from the lower part of the door 3 toward the floor, but there is a gap of about 1 cm between the metal plate 58 and the floor so that the metal plate 58 and the floor come into direct contact with each other. Therefore, the sliding of the heat insulating door 3 is prevented.

FIG. 4 is a cross-sectional view showing the rear end portion 7 of the heat insulating door 3 in the width direction, which is a portion on the opposite side of the door contact portion 20. A metal plate (rear end side closing body 14) 60 and a metal plate 61 bent in an approximately L shape are attached to the iron frame 26 of the heat insulating door 3 in this portion. Of the two metal plates 60, 61, the metal plate 60 is in surface contact with the substantially L-shaped metal plate 63 attached to the vertical frame 62 at the rear end 8 in the width direction of the opening 2 when the heat insulating door 3 is closed. At this time, the gap between the heat insulating door 3 and the opening 2 is closed. Further, a metal spacer (rear end side closing body 14) 65 is provided on the iron plate 28 on the back side of the heat insulating door 3.
Is attached. Further, another metal spacer (rear end side closing member 14) 66 is attached to the vertical frame 62 of the opening 2 so as to face the metal spacer 65. A rear end side close contact member (packing) 9 is attached so as to close the gap formed by. Further, a metal plate (rear end side closing body 14) 68 is attached to the metal spacer 66, and when the heat insulating door 3 is closed, the metal plate 68 comes into surface contact with the lateral edge of the metal spacer 65. The metal plates 60, 63
The metal plate 68 and the metal spacer 65 completely close the gap between the heat insulating door 3 and the opening 2, and close the rear end side contact member 9 provided therein from the outside.

In addition, a roller 69 is attached to the vertical frame 62 of the opening 2 so as to be able to come into contact with the inclined portion 65a formed on the metal spacer 65, and when the heat insulating door 3 is closed, the roller 69 is used. The heat insulation door 3 is pushed out in the direction of arrow b in FIG. On the other hand, the lower part of the heat insulating door 3 is guided to the floor surface, and the inclined portion 61a of the metal plate 60 is also guided.
A roller 70 is attached so that it can come into contact with the roller 70. The roller 70 suppresses the swing of the heat insulating door 3 (swing of the door 3 in the front-back direction), and when the heat insulating door 3 is closed, the door 3 is pushed out in the arrow a direction. The position of the heat insulating door 3 is regulated by the two rollers 69 and 70,
The metal plates 60, 63, the metal plate 68, and the metal spacer 65.
To ensure reliable contact.

[0024]

[Embodiment 2] FIG. 5 shows another embodiment of the fireproof structure using the heat insulating door at the opening of the low temperature facility of the present invention. In this embodiment, there is one heat insulating door 3 that opens and closes the opening 2 opened in the wall surface 1 of the low temperature facility, and when the heat insulating door 3 is closed, the width direction tip portions 4 of the heat insulating door 3 overlap each other. 2A and 2B show a structure in the width direction tip portion 5 of the opening 2. The other parts, that is, the widthwise rear end of the heat insulating door 3 and the upper and lower portions of the heat insulating door 3 have the same fire protection structure as in Embodiment 1 as shown in FIGS.

A door stop member 81 (tip end side closing member 13) having an inclined surface 80 is attached to the widthwise end 4 of the heat insulating door 3, and the widthwise end of the opening 2 against which the door contact member 81 abuts. A door receiving member (tip side closing member 13) 83 having an inclined surface 82 is attached to the portion 5. The inclined surface 80 of the door contact member 81 and the inclined surface 82 of the door receiving member 83 come into contact with each other when the door is closed, and the heat insulating door 3 is pushed out in the direction of arrow a in the figure to open the opening. The tip side contact member (packing) 6 attached to the second side is in close contact. Further, a metal spacer (tip side closing member 13) 84 is attached to the iron plate 28 on the side of the opening 2 of the heat insulating door 3 so that the metal spacer 84 can be brought into close contact with the tip side contact member 6. Further, a metal plate (tip side closing body 13) 85 facing the metal spacer 84 with a slight gap is attached to the opening 2 inside the contact member 6. The metal plate 85 and the metal spacer 84, the door contact member 81, and the door receiving member 83 close the gap formed between the heat insulating door 3 and the opening 2 when the door is closed, and the contact member 6 from the outside. Block.

A detection sensor 86 for detecting the closing of the heat insulating door 3 is attached to the tip of the door contact member 81. This sensor 86 uses the same drive motor 3 as in the actual sister example 1.
The control box 35 is connected to the control box 35 for controlling the control unit 4, and the control box 35 stops the drive motor 34 when the sensor 86 outputs a detection signal for detecting "closed" of the adiabatic door 3. As a result, it is possible to prevent the drive motor 34 from being wasted even if the door is closed.

[0027]

According to the fireproof structure by the heat insulating door at the opening of the low temperature facility according to claim 1 of the present invention, when the heat insulating door 3 is closed, the tip side contact member 6 for enhancing the airtightness of the door 3 is provided. ,
Since the rear end side contact member 9 and the leakage member 12 are externally closed by the front end side closing body 13, the rear end side closing body 14, and the leakage member closing body 15, respectively, they are not burned by a flame due to a fire.
Therefore, the spread of fire through the door is prevented.

According to the second aspect of the present invention, according to the fireproof structure of the heat insulating door at the opening of the low temperature facility, when the heat insulating door 3 is closed, the contact member 21 for enhancing the airtightness of the door 3, the rear end side. Since the close contact member 9 and the leak preventing member 12 are closed from the outside by the door contact portion side closing member 22, the rear end side closing member 14, and the leak preventing member closing member 15, respectively, they are not burned by a flame due to a fire.
Therefore, the spread of fire through the door is prevented.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of a fire prevention structure using a heat insulating door at an opening of a low temperature facility of the present invention.

FIG. 2 is a cross-sectional view of a fireproof structure using a heat insulating door at the opening of the low temperature facility shown in FIG. 1, showing a door stop portion of the door.

FIG. 3 is a vertical cross-sectional view of a fireproof structure using an insulating door at the opening of the low temperature facility in FIG.

FIG. 4 is a cross-sectional view of a fireproof structure using a heat insulating door at the opening of the low temperature facility of FIG. 1, showing the widthwise rear end of the door.

FIG. 5 is a cross-sectional view of a door-stop portion showing another embodiment of the fire prevention structure using the heat insulating door at the opening of the low temperature facility of the present invention,
(A) shows the door closed, and (b) shows the door open.

FIG. 6 is a front view showing an embodiment of a fire prevention structure using a heat insulating door at the opening of a conventional low temperature facility, which has a structure of two doors.

FIG. 7 is a cross-sectional view of a fireproof structure using a heat insulating door at the opening of the low temperature facility in FIG. 6, showing a door stop portion of the door.

FIG. 8 is a vertical cross-sectional view of a fireproof structure using a heat insulating door at the opening of the low temperature facility shown in FIG.

9 is a cross-sectional view of a fireproof structure with an insulating door at the opening of the low temperature facility of FIG. 6, showing the outer end portion of the door.

FIG. 10 is a front view showing an embodiment of a fire prevention structure using a heat insulating door at the opening of a conventional low temperature facility, which has a single door structure.

FIG. 11 is a cross-sectional view of a fireproof structure using a heat insulating door at the opening of the low temperature facility in FIG. 10, showing a door-stop portion of the door.

[Explanation of symbols]

 1 Wall Surface of Low Temperature Facility 2 Opening 3 Heat Insulation Door 4 Width-direction Tip of Heat-insulation Door 5 Width-direction Tip of Opening 6 Tip Side Adhesive Member 7 Width-direction Rear End of Heat-insulation Door 8 Width-direction Rear End of Opening 9 Rear End Side Adhesion Member 10 Upper Edge of Opening 11 Upper Side Inner Side of Insulation Door 12 Leakage Member 13 Tip Side Closure Body 14 Rear End Side Closure Body 15 Leakage Member Closure Body 20 Heat Insulation Door Stopper 21 Adhesion Member 22 Door stop block

Claims (2)

[Claims] 1. An opening (2) opened on a wall surface (1) of a low temperature facility is slid laterally along the wall surface (1) 1
A heat insulating door (3) is openable and closable, and when the heat insulating door (3) is closed, the width direction front end (4) of the heat insulation door (3) and the width direction front end (5) of the opening (2) overlap each other. ), And a widthwise rear end portion (7) of the heat insulating door (3) and the width of the opening portion (2) are provided with a front end side contact member (6) that seals the both in the vertical direction. A rear end side contact member (9) is provided to seal the space between the rear end part (8) and the rear end part (8) in the longitudinal direction, and a rear end side close contact member (9) is provided.
(0) When the heat insulating door (3) is closed in the width direction, the leak preventing member (1) is attached to the upper part (11) on the inner surface side of the heat insulating door (3).
2) is attached, and the tip end side contact member (or the longitudinal end portion (4) of the heat insulation door (3) and / or the width direction tip end portion (5) of the opening (2) is provided in the longitudinal direction). A heat-resistant front side closing body (13) for closing the inside of (6) from the outside is provided, and the width direction rear end (7) of the heat insulating door (3) and the width direction rear end (8) of the opening (2). ) And / or a heat-resistant rear end side closing member (14) for closing the rear end side contact member (9) from the outside is provided in the longitudinal direction and the opening (2).
Upper peripheral edge (10) of the heat insulating door (3) and the inner side upper part (1) of the heat insulation door (3)
(1) and / or one or more of which is provided with a sealing member closing body (15) for closing the sealing member (12) from the outside, a fireproof structure by a heat insulating door at an opening of a low temperature facility. . 2. An opening (2) opened in a wall surface (1) of a low temperature facility, and laterally sliding along the wall surface (1) 2
The heat insulating doors (3) are openable and closable, and both or either of the door stop portions (20) on the tip side of the heat insulating doors (3) that abut against each other when the heat insulating doors (3) are closed. A close contact member (21) for sealing between the two door contact portions (20) is provided in the direction, and the width direction rear end portion (7) of each heat insulation door (3) and the width direction rear end portion of the opening (2) are provided. A rear end side contact member (9) that seals between both ends (7, 8) is provided in both and / or the longitudinal direction of (8), and the width direction of the upper peripheral edge (10) of the opening (2). A heat-sealing member (12) is attached to the upper part (11) on the inner surface side of each heat-insulating door (3) when the heat-insulating door (3) is closed. A heat-resistant door stop portion side closing body (22) for closing the contact member (21) from the outside is provided in the longitudinal direction of the door contact portion (20). The rear end side contact member (9) is placed outside the longitudinal end of either or both of the widthwise rear end (7) of the heat insulation door (3) and the widthwise rear end (8) of the opening (2). A heat-resistant rear end side closing body (14) for closing from the above is provided, and the upper peripheral edge (10) of the opening portion (2) and / or the inner surface side upper portion (11) of the heat insulating door (3) are either or both of the above. Sealing member closing body (15) for closing the sealing member (12) from the outside
A fireproof structure with an insulating door at the opening of a low-temperature facility, which is characterized by being provided with.