JPH11319132A - Fireproof zone structure for spatial part having obstacle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an appropriate fireproof zone structure even in a space having obstacles at the time of fire occurrence. SOLUTION: A lot of string-shaped objects 20 are suspended at prescribed intervals from the ceiling part 18 of a space 16 where any obstacle such as duct 12 or pipe 14 exists. These string-shaped objects 20 are coated with thermal foaming fire-resistant paints. Both the left and right sides and vertical sides of the duct 12 or pipe 14 are covered with the string-shaped objects 20. When heat is generated at the time of a fire or the like, the thermal foaming fire- resistant paint is foamed and expands the volume several dozens of times.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fire compartment structure for forming a suitable fire compartment in a space where an obstacle exists.

[0002]

2. Description of the Related Art Various fire prevention measures are taken in various buildings and facilities to prevent the occurrence of fires.
It is designed to prevent the spread of fire. For example, there is a sprinkler for performing a fire fighting activity, and there is a fire door or a fire wall for preventing a fire from spreading.

[0003] By the way, there is a fire-resistant screen as a type of the latter firewall, which is usually wound up or folded and stored, and is pulled out when a fire occurs so as to isolate the fire place. I have. In this way, the refractory screen is designed to define a preset fire prevention section to prevent burning.

[0004]

However, such a conventional fire-prevention compartment structure partitions a space where there is no obstacle such as a passage, so that the fire-prevention compartment can be formed simply and reliably.

[0005] However, in buildings such as factories where importance is placed on functional aspects, truss beams, pipes, ducts, pipes and the like are arranged near the ceiling in an exposed state. The space in which the beams, pipes, etc. are arranged in this way is always in a state where the continuity is ensured, but when it is attempted to form a fire prevention section in the event of a fire, for example, the truss beam is used in the fireproof screen. And pipes, ducts, and pipes become obstacles, making it impossible to properly form a fire prevention compartment.

Accordingly, the present invention has been made in view of such a conventional problem, and even if an obstacle is present in a space where a fire protection compartment is to be formed, the fire protection compartment is appropriately formed when a fire occurs. It is an object of the present invention to provide a fire-blocking structure in a space having an obstacle that can be formed.

[0007]

In order to achieve the above-mentioned object, in a fire-blocking structure for a space having an obstacle according to the first aspect of the present invention, the space for forming a fire-block is obstructed. In a building where an object is present, a large number of non-combustible or flame-retardant cords or strips are provided in the vertical direction, the horizontal direction, and / or the diagonal direction from the ceiling of the space with a gap therebetween. It hangs down to form a heat-foamable refractory paint layer on these cords and strips.

[0008] In the fire-blocking structure for a space having an obstacle according to claim 2 of the present invention, the string or the band includes a steel material or a metal mesh, and at least one of them. Alternatively, a combination of these is disposed on the ceiling.

In a third aspect of the present invention, in the fire-blocking structure in a space having an obstacle, the string or the band on which the heat-foamable refractory paint layer is formed includes It is stored around the space so that it can be arranged in the space.

Further, in the fire prevention compartment structure of the space having an obstacle according to claim 4 of the present invention, the space in which the string or the band is disposed in the presence of the obstacle. In the lower part, a fireproof section is formed by a fireproof screen.

According to the above structure, in the fire-blocking structure for a space having an obstacle according to the first aspect of the present invention, a vertical, horizontal, and oblique direction is separated from the ceiling of the space by a gap. A large number of non-combustible or flame-retardant cords or strips hanging in at least one direction have a heat-foamable refractory paint layer formed thereon. When acting on the foamable fire-resistant paint layer, the paint of the heat-foamable fire-resistant paint layer foams and expands by several tens of times. Stick to each other. When the paint of the heat-foamable refractory paint layer foams, the foam layer surrounds the obstacle and forms a series of fire barriers, which can stop the spread of fire. on the other hand,
In a normal state, the space portion has the cord-like body or the band-like body hanging down and has a nodule shape, so that the presence of an obstacle and its communication can be guaranteed.

[0012] The string or band may be hung down to the floor surface, so that a fire wall surrounding the obstacle on the floor can be formed.

[0013] In the fire-prevention compartment structure of the space having an obstacle according to the second aspect of the present invention, the string-like body or the belt-like body includes a steel material or a metal mesh. By arranging the combination on the ceiling portion, a fire wall similar to the above-mentioned string-like body or band-like body can be formed by these at positions that do not interfere with obstacles.

Further, in the fire-prevention compartment structure of the space having an obstacle according to claim 3 of the present invention, the string-shaped body or the band-shaped body on which the heat-foamable fire-resistant paint layer is formed is formed by the above-mentioned structure. Since it is arranged so that it can be arranged in the space and stored around the space, the string or band is normally stored around the space, so that the space is completely communicated. State. On the other hand, by arranging the string or band that was stored at the time of the fire in the space, the paint of the heat-foamable fire-resistant paint layer foams and expands due to the high heat of the fire, forming a fire barrier. Can be. By the way, when arranging the string or the band in the space, these strings or the band can easily bend and get over an obstacle, and can flexibly surround the obstacle. The fire wall can be formed so as to appropriately surround the obstacle when the paint of the heat-expandable refractory paint layer foams.

Further, in the fire protection compartment structure of the space portion having an obstacle according to a fourth aspect of the present invention, a fire protection screen is formed by a fireproof screen below the space portion where the obstacle exists. Thus, the entire space in which the obstacle is present can be configured as a series of fire protection compartments.

[0016]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. 1 to 4 show an embodiment of a fire-prevention compartment structure of a space with an obstacle according to the present invention. FIG. 1 is a front view of the fire-prevention compartment structure in a normal state, and FIG. FIG. 3 is an enlarged view of a main part of the fire-prevention compartment structure in a normal state, and FIG. 4 is an enlarged view of a main part of the fire-prevention compartment structure when a fire-prevention compartment is formed.

That is, the fire protection compartment structure 10 of the present embodiment
As shown in FIG. 1, a plurality of non-combustible or non-combustible cords 20 are provided at predetermined intervals from a ceiling 18 provided in a space 16 where obstacles such as ducts 12 and pipes 14 are present. Then, as shown in FIG. 3, a heat-foamable fire-resistant paint layer is formed by applying a heat-foamable fire-resistant paint 22 to each of these cord-like bodies 20. Of course, the cord 20 is sufficiently soft and easily flexible.

Here, the heat-foamable refractory paint 22 foams and expands its volume by several tens of times when high heat acts upon a fire or the like. The heat-foamable refractory paint 22 itself is a well-known material, and a material obtained by mixing a binder, a flame retardant, a foaming agent, a carbonizing agent, and a filler at a predetermined ratio is used. For example, a vinyl toluene-butadiene copolymer or a vinyl toluene-acrylate copolymer is used as a binder, and ammonium polyphosphate is used as a flame retardant, melamine is used as a foaming agent, dipentaerythritol is used as a carbonizing agent, and a filler is used as a filler. Titanium dioxide is used. There is also a mixture obtained by mixing chlorinated paraffin as a plasticizer with these mixtures.

The fire protection compartment structure 10 is applied to a building such as a factory, which emphasizes functional aspects. The duct 12 and the pipe 14 as obstacles are located at an upper position close to the ceiling 18 of the space 16. Are arranged in communication with each other.
The space 16 is usually used also as a passage or the like, and is a space 16 provided with communication in consideration of the necessity of circulating conditioned air for air conditioning.
Therefore, in the event of a fire, it is necessary to totally shield the space 16 including the duct 12 and the pipe 14 connected to each other.

In attaching the string 20, as shown in FIG. 1, the section P other than the portion where the duct 12 and the pipe 14 are arranged is separated from the ceiling 18, which is the upper end of the space 16, by a string. Hang 20a. On the other hand, the section Q of the arrangement portion of the duct 12 and the pipe 14
The string 20b is suspended down to the upper end, and the string 20c is also suspended from the lower ends of the duct 12 and the pipe 14. Needless to say, the upper ends of the cords 20a and 20b are attached to the ceiling 18 via an adhesive or a screw having heat resistance, and the cords 20c are similarly attached to the lower ends of the duct 12 and the pipe 14. Attached to.

With the above configuration, in the fire protection compartment structure 10 in the space with an obstacle according to the present embodiment, a large number of parts are formed from the ceiling 18, the duct 12, and the pipe 14 of the space 16.
Hang the cords 20a, 20b, 20c such as non-combustible,
The space portion 16 is entirely covered, and each of the cords 20a, 20b, and 20c is individually provided with the heat-foamable refractory paint 2.
2 is applied. Therefore, when high heat at this time acts on the heat-expandable fire-resistant paint 22 due to the occurrence of a fire, the heat-expandable fire-resistant paint 22 foams and expands several tens times, and as shown in FIG. The heat-foamable refractory paints 22 of the bodies 20 adhere to each other. Then, when the thermally foamable refractory paint 22 foams, the foam layer is applied to the duct 12.
It expands while avoiding obstacles such as the pipes 14 and the like, and forms a series of fire walls 24 surrounding the duct 12 and the pipes 14 as shown in FIG. The fire barrier 24 closes the entire space 16 and exhibits a high heat insulating function, thereby preventing the spread of fire.

On the other hand, in a normal state, the soft string-like body 20 is suspended in the space portion 16 as if it were a goodwill. For this reason, these cords 20
The conditioned air and the like can be freely circulated through the gaps between the cords 20 without interfering with the pipes 2 and the pipes 14 and the continuity thereof can be guaranteed.

FIG. 5 shows another embodiment, in which the same components as those in the above embodiment are denoted by the same reference numerals, and the description thereof will be omitted. FIG. 5 is a front view showing a fire protection compartment structure.

That is, the fire protection compartment structure 10a of this embodiment
In FIG. 5, as shown in FIG. 5, the upper ends of a number of cords 20 coated with the heat-foamable refractory paint 22 are respectively connected to the ceiling 18 to form a curtain 26, while 2
6 is wound up and stored.

Therefore, in this embodiment, the string-like body 20 coated with the heat-foamable refractory paint 22 is attached to the ceiling 18 as a curtain-like curtain 26, and the curtain-like curtain 26 is always shown as a solid line. Because it was wound up and stored, the curtain curtain 26 is normally removed from the space 16 during normal operation.
The space 16 is in a completely connected state. Then, when the fire occurs, the stored curtains 26, which are stored, are lowered as shown by the two-dot chain line and are disposed in the space portion 16, so that the curtains are heated by the high heat due to the fire as described in the above embodiment. The heat-foamable refractory paint 22 applied to the cord-like body 20 of the body 26 foams and expands to form a fire barrier. As a method of lowering the curtain 26, for example, a hanging scroll (not shown) for maintaining the curtain 26 in a rolled-up state or maintaining the rolled-up state by attaching each of the rolled-up strings 20 with a hot-melt adhesive is used. In addition, various methods can be adopted, such as a mechanism in which the string-like body 20 is lowered by melting the adhesive with heat at the time of a fire. In short, the rolled-up curtain 26 descends when a fire occurs. What should I do?

By the way, when the curtain 26 is lowered, the string 20 is easily bent and can flexibly surround the duct 12 and the pipe 14 as shown in FIG.
When the thermally foamable refractory paint 22 foams, the fire wall can be formed by appropriately surrounding the duct 12 and the pipe 14.

FIGS. 6 and 7 show another embodiment, in which the same components as those in the above-described embodiment are denoted by the same reference numerals, and a duplicate description will be omitted. FIG. 6 is a front view of the fire-prevention compartment structure in a normal state, and FIG. 7 is a front view of the fire-prevention compartment structure when the fire-prevention compartment is formed.

That is, the fire protection compartment structure 10a of this embodiment
As shown in FIGS. 6 and 7, the upper ends of a number of cords 20 coated with the heat-expandable refractory paint 22 are respectively connected to form a curtain 26, while the rails 28 are attached to the ceiling 18.
Is attached to the left and right direction, and the curtain curtain 26 is attached to the rail 28
Movably mounted along Then, as shown in FIG. 6, the curtain 26 is collected and stored at the left and right ends. Although the left end is used in the present embodiment, the center may be divided into two parts and stored at both ends.

By the way, in this embodiment, the string-like body 2 is used.
Due to the fact that 0 is a movable type, the length of the cord-like body 20 is set to a length slightly lower than the lower ends of the ducts 12 and the pipes 14 serving as obstacles, and with the movement of the curtain 26, Thus, the individual cords 20 can get over the duct 12 and the pipe 14.

Therefore, in this embodiment, the string-shaped body 20 coated with the heat-foamable refractory paint 22 is movably attached to the ceiling 18 as a curtain-like curtain 26, and is normally lit as shown in FIG. Because the curtain 26 is stored, the curtain 26 is normally removed from the space 16 during normal operation.
The space 16 is in a completely connected state. Then, as shown in FIG. 7, by pulling out the noren-shaped curtain 26 stored in the event of a fire and disposing the noren-like curtain 26 in the space 16, as described in the above-described embodiment, the high-temperature curtain by the fire causes the curtain. The heat-foamable refractory paint 22 applied to the cord-like body 26 foams and expands to form a fire barrier.

By the way, when the curtain 26 is pulled out, the string 20 easily bends and gets over obstacles. Therefore, as shown in FIG. 7, it is necessary to flexibly surround the duct 12 and the pipe 14 around. Thus, when the thermally foamable refractory paint 22 foams, it is possible to form a fire wall by appropriately surrounding the duct 12 and the pipe 14.

By the way, in each of the above embodiments, the cord 20
Although the case where the thermal foaming refractory paint 22 is applied is disclosed,
The same function can be exerted even if a soft band is used instead of the string 20. In addition, the fire protection compartment structures 10 and 10a of the above embodiments are replaced with new ones after the heat-foamable refractory paint 22 foams due to a fire. Furthermore, the above-described fire protection compartment structures 10 and 10a are suitable for application to the space 16 where obstacles such as ducts 12 and pipes 14 are arranged, but they are also applicable to space where these obstacles do not exist. It goes without saying that it is good.

FIG. 8 shows still another embodiment, in which the same components as those in the above embodiment are denoted by the same reference numerals, and the description thereof will be omitted. FIG. 8 is a front view showing a fire protection compartment structure. The fire protection compartment structure 10b according to this embodiment includes a steel material 30 or a metal mesh 32 as the cord or band.
Is shown. That is, the metal mesh 32 is provided so as to surround the portion where the pipe 14 and the duct 12 penetrate. In other words, the metal mesh 32 can be regarded as a structure in which a number of nonflammable or flame-retardant cords or belts are arranged obliquely. A truss 34 is provided above the metal mesh 32 in a horizontal direction between the metal mesh 32 and the ceiling 18, and the truss 34 also becomes an obstacle when forming a fire protection compartment. In the present embodiment, such a truss 34 is provided with a large number of steel members 30 in the truss 34 in the horizontal direction, which can also be regarded as a nonflammable or flame-retardant string or band. Has been established. The steel foam 30 and the metal mesh 32 are, of course, coated with the above-mentioned heat-foamable refractory paint 22. Therefore, even in the space 16 in which the fire protection compartment is to be formed and the space 16 in which the obstacles such as the pipes 14 and the ducts 12 and the trusses 34 are present, the use of the metal mesh 32 and the steel 30 A fire barrier made of the same heat-foamable refractory paint 22 can be formed.

Further, in the embodiment shown in FIG. 8, the lower part of the space 16 has a flame-retardant property which can be rolled up and stored.
Fireproof screen 36 made of non-combustible cloth or the like
2, a fire prevention section can be formed by lowering the refractory screen 36 in the event of a fire, whereby the space 16 where obstacles such as the pipe 14, the duct 12, and the truss 34 are present can be formed. Even so, the entire surface can be configured as a series of fire protection compartments.

[0035]

As described above, in the fire-blocking structure for a space having an obstacle according to the first aspect of the present invention, the space is vertically and horizontally separated from the ceiling of the space by a gap. A large number of non-flammable or flame-retardant cords or strips having a heat-foamable fire-resistant paint layer formed on at least one of the slanting and oblique directions. When acting on the paint layer, the paint of the heat-foamable fire-resistant paint layer foams and expands by several tens of times, and the heat-foamable fire-resistant paint layers of adjacent individual strings or strips adhere to each other. become. Then, when the paint of the heat-foamable fire-resistant paint layer foams, the foam layer surrounds the obstacle and forms a series of fire walls, so that the fire walls can stop the spread of fire. On the other hand, in a normal state, the space portion has the cord-like body or the band-like body hanging down and has a nodule shape, so that the existence of an obstacle and its communication can be guaranteed.

The string or band may be hung down to the floor, so that an obstacle on the floor can be provided with a fire wall surrounding the obstacle.

In the fire-blocking structure for a space with an obstacle according to a second aspect of the present invention, the string-like body or the band-like body includes a steel material or a metal mesh, and at least one of these materials or a metal mesh. Are arranged on the ceiling, so that a fire wall similar to the above-mentioned string-like body or band-like body can be formed by using them at positions not interfering with obstacles.

Further, in the fire-blocking structure in a space having an obstacle according to a third aspect of the present invention, the string-shaped body or the band-shaped body on which the heat-foamable fire-resistant paint layer is formed is formed by the above-mentioned structure. Since it is arranged to be disposed around the space so that it can be arranged in the space, the string or band is normally stored around the space, so that the space is completely connected. State. On the other hand, by arranging the string or band that was stored at the time of the fire in the space, the paint of the heat-foamable fire-resistant paint layer foams and expands due to the high heat of the fire, forming a fire barrier. Can be. And
When arranging the string or the band in the space, the string or the band easily bends and gets over an obstacle, so that the obstacle or the like can be flexibly surrounded around the obstacle, and the thermal foaming can be performed. The fire wall can be formed so as to appropriately surround the obstacle when the paint of the refractory paint layer foams.

Further, according to the fire protection compartment structure of the space having an obstacle according to the fourth aspect of the present invention, a fire protection screen is formed below the space where the obstacle exists by a fireproof screen. Thereby, the entire space in which the obstacle exists can be configured as a series of fire protection compartments.

[Brief description of the drawings]

FIG. 1 is a front view of a fire protection compartment structure in a normal state according to an embodiment of the present invention.

FIG. 2 is a front view of a fire protection compartment structure according to an embodiment of the present invention when a fire protection compartment is formed.

FIG. 3 is an enlarged view of a main part of the fire protection compartment structure in a normal state according to the embodiment of the present invention.

FIG. 4 is an enlarged view of a main part when a fire protection compartment of the fire protection compartment structure is formed in one embodiment of the present invention.

FIG. 5 is a front view of a fire protection compartment structure according to another embodiment of the present invention.

FIG. 6 is a front view of a fire protection compartment structure according to still another embodiment of the present invention at a normal time.

7 is a front view of the fire-prevention compartment structure of FIG. 6 when a fire-prevention compartment is formed.

FIG. 8 is a front view of a fire protection compartment structure according to still another embodiment of the present invention.

[Explanation of symbols]

 10, 10a, 10b Fireproof compartment structure 12 Duct 14 Pipe 16 Space portion 20 String body 22 Thermal foaming paint 24 Fire barrier 26 Goodwill curtain 30 Steel material 32 Metal mesh 34 Truss 36 Fireproof screen

Claims (4)

[Claims] 1. A building in which an obstacle is present in a space where a fire protection section is to be formed, wherein a non-combustible or flame-retardant string or band is separated from the ceiling of the space by a gap. A fire protection compartment in a space with obstacles, characterized by having a large number of hangs in at least one of the vertical direction, the horizontal direction, and the diagonal direction, and a heat-foamable fire-resistant paint layer formed on these cords and strips. Construction. 2. The string-shaped body or the band-shaped body includes a steel material or a metal mesh, and at least one of them or a combination thereof is disposed on the ceiling. Fire compartment structure in the space with obstacles. 3. The string-shaped body or the band-shaped body on which the thermally foamable refractory paint layer is formed is stored around the space so as to be disposed in the space. 1
Or the fire compartment structure of the space part with the obstacle according to 2. 4. A fireproof section is formed by a fireproof screen below the space where the obstacle is present and the string or the band is disposed.
3. A fire-prevention compartment structure in a space part with an obstacle according to any one of Items 3 to 3.