JP2014050182A - Fireproof treatment material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fireproof treatment material which can eliminate scattering of a material forming a block body so that it can be easily constructed.SOLUTION: A fireproof treatment material 11 is composed of a block body 12, which is formed from a material with cushioning property and no scattering property, covered by an exterior member 13 of thermal-expansion and heat-resistant material. With the above structure, material forming the block body 12 does not scatter, and even when an exposed surface of the block 12 is formed by cutting and folding the fireproof treatment material 11, the material forming the block body 12 does not scatter from the exposed surface. As the material forming the block body 12 does not scatter, there is no need to cover the exposed surface of the block body 12 with a member different from the exterior member 13, thereby, the fireproof treatment material 11 can be easily constructed.

Description

  The present invention relates to a fireproofing material filled between a penetration part formed in a fireproof compartment of a building and a wiring / piping material inserted into the penetration part.

  2. Description of the Related Art Conventionally, in order to allow wiring / piping materials to penetrate through a fire prevention compartment wall as a fire prevention compartment in a building, a through-hole penetrating the fire prevention compartment wall in the thickness direction is formed. A fireproofing treatment is performed between the through hole and the wiring / pipe material on the fireproof partition wall. This fireproofing treatment is provided, for example, to prevent inflow of flame, smoke, or toxic gas to the other side through the through-hole when a fire or the like occurs on the front side of one wall across the fire prevention partition wall. It has been. In other words, the fireproofing process closes the space between the through hole and the wiring / piping material in the event of a fire, etc., thereby preventing the flow of flame, smoke, or toxic gas to the opposite side of the fire. ing.

  As such a fireproofing treatment, there is a method in which a fireproofing treatment material is filled between the through hole and the wiring / piping material. As a fireproof processing material, the fireproof processing material disclosed by patent document 1 is mentioned, for example. This fireproof material is formed by covering a block body having cushioning properties and nonflammability with a heat-expandable fireproof material obtained by vulcanizing rubber containing an expandable material.

  In Patent Document 1, ceramic wool, rock wool, or the like is used as a material having cushioning properties and nonflammability.

JP 2008-245508 A

  However, ceramic wool and rock wool are composed of fine fibers. For this reason, if the fireproof material is cut or bent to adjust the size of the fireproof material according to the through hole, if the fiber is exposed to the outside from the cut surface or the bent part, the fiber may be scattered. There is. Thereby, in patent document 1, the process which covers the exposed surface of a fiber with a cover body and prevents scattering of a fiber is required, and construction of a fireproof processing material was troublesome.

  This invention is made | formed in view of the said conventional problem, Comprising: The objective is to provide the fireproof processing material which can be easily constructed without the scattering of the material which forms a block body.

  In order to solve the above-mentioned problems, the invention according to claim 1 is directed to an inner surface of a through portion formed through a fire prevention compartment of a building in a thickness direction, and wiring / pipe material inserted into the through portion. This is a heat-resistant treatment material filled between the outer surface and the cushion body, which is made of a non-scattering material with cushioning properties. The gist of the invention is that it is partially or entirely covered with an expandable refractory material or a thermally expandable refractory material mainly composed of a soft synthetic resin.

  The invention according to claim 2 is the fireproofing material according to claim 1, wherein the cushion body is a hexahedral block body, and the thermally expandable fireproof material covers at least one surface of the block body. The gist is that it is formed.

The gist of the invention according to claim 3 is that, in the fireproofing material according to claim 1, the cushion body is entirely covered with the thermally expandable fireproof material having a bag shape.
Invention of Claim 4 is a refractory treatment material as described in any one of Claims 1-3. WHEREIN: The said cushion body is formed with a flame-retardant foam, and it is a summary. To do.

  ADVANTAGE OF THE INVENTION According to this invention, the fireproof processing material which can be easily constructed without the scattering of the material which forms a block body can be provided.

The front view which shows the fire prevention division wall which performed the fireproof process. The perspective view which shows the fireproof processing material of embodiment. (A), (b) is sectional drawing which shows the fireproofing material of embodiment. The front view which shows the fire prevention division wall before performing a fireproof process.

Hereinafter, an embodiment of a fireproof material embodying the present invention will be described with reference to FIGS.
As shown in FIG. 1, a square hole-like through hole 34 (penetrating portion) for allowing the wiring / pipe material 33 to penetrate in the thickness direction of the fire prevention compartment wall W is formed in the fire prevention compartment wall W as the fire prevention compartment. Has been.

Next, in order to form the fireproof structure of the penetration part in the fire prevention partition wall W, the fireproof processing material 11 with which the through-hole 34 is filled is demonstrated.
As shown in FIG. 2, the refractory material 11 is formed in a rectangular parallelepiped shape. As shown in FIGS. 3 (a) and 3 (b), the refractory treatment material 11 is a hexahedron, more specifically, a block body 12 as a cushion body formed in a rectangular parallelepiped shape, and a thermally expandable heat resistant heat forming a square box shape. Material-made exterior member 13 (thermally expansible refractory material). More specifically, the entire block body 12 constituting the fireproof material 11 is accommodated in an exterior member 13 made of a heat-expandable heat-resistant material having a square box shape. The entire block body 12 is covered with the exterior member 13 so that the block body 12 cannot be detached from the exterior member 13, and the block body 12 and the exterior member 13 are integrated so as not to be separated.

First, the block body 12 will be described.
The block body 12 forming the refractory treatment material 11 is formed in a rectangular parallelepiped shape by a flame-retardant foaming material such as urethane or polystyrene resin, and the block body 12 itself has a cushioning property and has a required elasticity. Have. That is, the block body 12 can be compressed and deformed, and can be restored to its original shape from the compressed and deformed state.

  The block body 12 is not fibrous. Furthermore, although the block body 12 is formed by uniformly dispersing bubbles in the resin, the cohesiveness between the resins excluding the air bubbles is higher than the cohesiveness of the fibers constituting the ceramic wool or rock wool. For this reason, even if the block body 12 is cut or bent, the foamable material forming the block body 12 is not scattered from the cut surface (exposed surface) of the block body 12 or the bent portion. That is, the block body 12 is formed from a material having foamability and non-scattering properties.

Next, the exterior member 13 will be described.
As shown in FIGS. 3A and 3B, the exterior member 13 is formed slightly larger than the outer shape of the block body 12 so that the block body 12 can be accommodated in the internal space of the exterior member 13. . The exterior member 13 is made of a flame-retardant heat-expandable heat-resistant material, and the heat-expandable heat-resistant material expands in volume (expanded) when its volume expands to three times or more of that before heating. A rubber (heat-expandable rubber) mixed with graphite and molded into a predetermined shape (through a molding process) is subjected to a vulcanization process. The vulcanization step is a step of applying heat to the rubber that has undergone the molding step to cause a vulcanization (crosslinking) reaction or an adhesion reaction to obtain a product having rubber elasticity. Then, through the vulcanization step, the heat-expandable heat-resistant material can be formed into the square box-shaped exterior member 13 and the exterior member 13 can be provided with rubber properties.

Next, a method for manufacturing the fireproof material 11 will be described.
First, a square box-shaped exterior member 13 as shown in FIG. 2 is manufactured. Next, the one side part in the transversal direction of the exterior member 13 is cut | disconnected from the position shown to the dashed-two dotted line of FIG. That is, the exterior member 13 is separated into a bag-like member 13b having an opening 13a and a lid member 13c that closes the opening 13a. And the block body 12 is accommodated in the internal space from the opening part 13a of the bag-shaped member 13b, and the cover member 13c is welded to the bag-shaped member 13b. Then, the exterior member 13 is formed in a square box shape, the entire block body 12 is wrapped by the exterior member 13, and the block body 12 and the exterior member 13 are integrated.

Next, a method for applying a fireproofing process to the through hole 34 of the fireproof partition wall W using the fireproofing material 11 will be described.
As shown in FIG. 4, the wiring / pipe material support rack 20 for arranging the wiring / pipe material 33 inside the through hole 34 is disposed in the through hole 34 formed in the fire prevention partition wall W. Next, the wiring / piping material support rack 20 supports the plurality of wiring / piping materials 33, and the wiring / piping material 33 penetrates through the fire prevention partition wall W. The wiring / pipe material 33 is a general term for wiring (control cables, coaxial cables, optical cables, etc.) and piping materials (synthetic resin flexible cable tubes, steel cable tubes, etc.) arranged in the building. That is.

  As shown in FIG. 1, a large number of refractory treatment materials 11 are filled between the inner surface of the through hole 34 and the outer surface of the wiring / pipe material 33. That is, a plurality of refractory treatment materials 11 are filled in accordance with the size of the through holes 34 in the horizontal direction, and a plurality of refractory treatment materials 11 are filled in accordance with the size of the through holes 34 in the vertical direction. The refractory treatment materials 11 adjacent to each other in the vertical direction and the horizontal direction of the through-hole 34 are in pressure contact with each other in the vertical direction and the horizontal direction in order to eliminate a gap.

  The fireproof material 11 can be compressed and deformed because the block body 12 has cushioning properties, and can be elastically deformed because the exterior member 13 also has rubber properties. The fireproof material 11 can be compressed and deformed, and the through hole 34 is filled in the compressed and deformed state. For this reason, the refractory treatment material 11 filled in the through-hole 34 is pressed against the exterior member 13 serving as the outer surface of the refractory treatment material 11 adjacent in the longitudinal direction and the lateral direction by the restoring force from the compression deformation state to the original shape. Yes. Further, since the exterior member 13 has rubber properties, the exterior members 13 that are in pressure contact with each other are difficult to slide with each other, and the refractory treatment material 11 filled in the through holes 34 is prevented from being displaced. The outer surface of the exterior member 13 of the fireproof material 11 is in pressure contact with the outer surface of the wiring / pipe material 33.

  Further, in the longitudinal direction and the lateral direction of the through-hole 34, the size of the fire-resistant treatment material 11 is smaller between the fire-resistant treatment materials 11 or between the inner peripheral surface of the through-hole 34 and the wiring / pipe material support rack 20. When a gap is formed, the refractory treatment material 11 is filled according to the size of the gap. That is, the fireproof material 11 is cut into a required size and used. As described above, the block body 12 is formed of a material having foamability and non-scattering properties. For this reason, as shown in FIG.3 (b), the foamable material which forms the block body 12 does not scatter from the exposed surface of the block body 12 after a cutting | disconnection. Further, when the cut refractory material 11 is filled in the through-hole 34, the refractory material 11 passes through the through-hole so that the exterior member 13 of the adjacent refractory material 11 is pressed against the exposed surface of the block body 12. 34 is filled.

  As described above, the outer surface of the fireproof material 11 is in pressure contact with the inner peripheral surface of the through hole 34, so that there is no gap between the outer surface of the fireproof material 11 and the inner peripheral surface of the through hole 34. Similarly, when the outer surface of the fireproofing material 11 is pressed against the outer surface of the wiring / pipe material 33, there is no gap between the outer peripheral surface of the fireproofing material 11 and the outer surface of the wiring / pipe material 33.

Further, a slight gap formed between the wiring / piping material support rack 20 and the wiring / piping material 33 or between the wiring / piping materials 33 is filled with a heat-expandable heat-resistant sealing material (not shown). The
Next, actions of the fireproofing material 11 and the fireproof structure will be described.

  In a building in which fireproofing treatment is applied to the fire prevention compartment wall W, it is assumed that a fire or the like has occurred on the front side of one wall of the fire prevention compartment wall W, and the wiring / pipe material 33 has burned. At this time, the through hole 34 is closed by pressure contact with the inner peripheral surface of the through hole 34 of the fireproof material 11. For this reason, it is prevented that the through-hole 34 becomes a path | route of smoke by the fireproof processing material 11, and the problem that smoke is transmitted to the other wall surface side of the fire prevention division wall W is lost.

  Further, the exterior member 13 of the fireproof material 11 is in pressure contact with the outer surface of the wiring / pipe material 33. And the exterior member 13 is formed with the flame-retardant heat-expandable heat-resistant material. For this reason, the exterior member 13 is not immediately burned away by the heat generated from the wiring / pipe material 33, and the exterior member 13 expands by receiving heat. Moreover, since the block body 12 is formed from the material which has a flame retardance, when the exterior member 13 expand | swells, the block body 12 is hard to burn.

  Then, even if the wiring / pipe material 33 is burned to form a gap, the heated exterior member 13 expands toward the gap formed by the burning of the wiring / pipe material 33, and the exterior member 13 is in pressure contact. They are joined (welded) to form a plurality of refractory treatment materials 11 in one lump. The gap formed by burning the wiring / piping material 33 is hermetically closed by the refractory processing material 11 that forms one lump. As a result, the gap between the outer surface of the wiring / pipe material 33 and the through-hole 34 becomes a path for flame, smoke, toxic gas, and heat, and the flame, smoke, toxic gas, heat Is prevented from being transmitted, and the fireproofing material 11 exhibits a fireproofing function.

According to the above embodiment, the following effects can be obtained.
(1) The fireproof material 11 was configured by covering the block body 12 having a cushioning property and a non-scattering material with an exterior member 13 made of a heat-expandable heat-resistant material. According to this, even if the material forming the block body 12 does not scatter and the exposed surface of the block body 12 is formed by cutting or bending the refractory material 11, The material forming the block body 12 is not scattered. And since the material which forms the block body 12 does not scatter, it becomes unnecessary to cover the exposed surface of the block body 12 with a member different from the exterior member 13, and the fireproofing material 11 can be constructed easily.

(2) Since the block body 12 has cushioning properties, the work of pushing the block body 12 into the exterior member 13 can be easily performed.
(3) The fireproof material 11 is formed by wrapping the entire block body 12 with an exterior member 13 made of a heat-expandable heat-resistant material. For this reason, the refractory material 11 can be compressed and deformed, and the adjacent refractory materials 11 can be brought into pressure contact with each other by returning the refractory material 11 to the original shape in the filled state of the through holes 34. In addition, since the block body 12 is wrapped with the exterior member 13 made of a heat-expandable heat-resistant material, the block body 12 does not escape to the outside of the exterior member 13 unless heat is transmitted to the block body 12. The fireproofing material 11 does not lose the cushioning property.

  (4) Furthermore, the exterior member 13 has rubber properties, and it is difficult for the exterior member 13 to slide in a state where the exterior members 13 are in contact with each other. Therefore, it is possible to prevent the fireproof material 11 filled in the through hole 34 from being displaced or displaced from the inside of the through hole 34, and the fireproof structure can be maintained.

  (5) By forming the block body 12 with a flame-retardant foam, the fireproof material 11 is less expensive than the case where glass fiber, carbon fiber, or the like is used as a material for forming the block body 12, for example. Can be manufactured.

  (6) The block body 12 and the exterior member 13 are not bonded. For this reason, the block body 12 can be freely deformed in the exterior member 13, and the fireproof material 11 can be easily compressed and deformed.

  (7) In the fireproofing material 11, a block body 12 having flame retardancy is wrapped by an exterior member 13 having flame retardancy. For this reason, the entire fireproofing material 11 is not burned out at a stroke even by a fire or the like, and the fireproofing function of the through hole 34 can be sufficiently exhibited.

In addition, you may change the said embodiment as follows.
In the fireproofing material 11, the entire block body 12 may not be covered with the exterior member 13. For example, only the two largest surfaces facing each other among the six surfaces forming the block body 12 may be covered with the exterior member 13. Or you may make it cover the outer surface of the block body 12 of the up-down and right-and-left 4 directions except the front surface and back surface of the fireproof processing material 11 in the state which filled the fireproof processing material 11 in the through-hole 34 with the exterior member 13. That is, in the embodiment, since the block body 12 is formed of a non-scattering material, the material forming the block body 12 does not scatter from the exposed surface of the block body 12, and thus the exposed surface of the block body 12 It is because it is not necessary to cover the whole with the exterior member 13. In the fire-resistant structure, even when the fire or the like occurs, even if the wiring / pipe material 33 burns to form a gap, the exterior member 13 expands toward the gap formed by the wiring / pipe material 33 burning. Then, the exterior members 13 that are in pressure contact with each other are joined (welded). Therefore, if the plurality of refractory treatment materials 11 become one lump due to the expansion of the exterior member 13, even if the entire block body 12 is not covered with the exterior member 13, a part of the block body 12 is covered with the exterior member 13. Only the exterior members 13 can be joined (welded) to each other. Therefore, while suppressing the manufacturing cost of the refractory treatment material 11, it is possible to prevent the through-hole 34 from being an inflow path of flame, smoke, toxic gas, and heat and to exhibit a fire resistance function.

  In the fireproofing material 11, if the block body 12 is not dropped from the exterior member 13, an opening may be formed in the exterior member 13 to expose the block body 12 to the outside of the exterior member 13.

  ○ As long as the cushion body is a material having cushioning properties and non-scattering properties, it does not matter whether the cushion body is combustible. For example, the cushion body may be formed of a nonflammable material, or may be formed of a flammable material. The nonflammable material may be a spring or the like, and the flammable material may be a flammable foamed resin or a piece of cloth rolled up.

  ○ If the through-hole 34 can be closed by the expansion of the exterior member 13 made of a heat-expandable heat-resistant material, the cushion body may be formed of a flammable material that is burned down in the event of a fire. good.

If the cushion body is formed of a thermally expandable refractory material in the refractory treatment material 11, the exterior member 13 may be formed of a flammable material that burns away due to a fire or the like.
The exterior member 13 may be formed of a thermally expandable refractory material mainly composed of a soft synthetic resin.

The block body 12 and the exterior member 13 may be bonded with an adhesive.
O Scales extending in a direction perpendicular to the longitudinal direction of the exterior member 13 are equally spaced along the longitudinal direction of the exterior member 13 on the outer surfaces of the two largest surfaces facing each other among the six surfaces forming the exterior member 13 A plurality may be provided every other. According to this, since the scale can be used as an index when cutting the fireproof material 11, it becomes easy to perform the cutting work of the fireproof material 11.

The fireproof material 11 may be formed in a cubic shape.
The refractory material 11 does not have to be a rectangular parallelepiped shape, and the shape may be changed to a spherical shape, an octahedral shape, or a triangular pyramid shape.

○ As the wiring / piping material, a plurality of wiring / piping materials may be collected.
○ As a fire-proof compartment, a fire-resistant treatment structure is provided by using a fire-resistant treatment material 11 in a through-hole of a hollow wall formed by sandwiching a solid wall such as a concrete wall, a floor, a ceiling, or a construction material between a pair of wall materials. May be.

The shape of the through hole 34 may be a polygonal shape excluding a circular shape or a square shape.
Next, a technical idea that can be grasped from the above embodiment and another example will be added below.
(A) The block body is any one of claims 1 to 4, wherein a material forming the block body is not scattered from an exposed surface formed when the fireproof material is bent or cut. The fireproofing material as described in.

  W: Fire prevention compartment wall as fire prevention compartment, 11 ... Fireproofing material, 12 ... Block body as cushion body, 13 ... Exterior member as thermally expandable fireproof material, 33 ... Wiring / piping material, 34 ... As penetration part Through hole.

Claims (4)

A fireproofing material filled between an inner surface of a penetration part formed through a fireproof compartment of a building in a thickness direction and an outer surface of a wiring / piping material inserted into the penetration part,
Cushioned and non-sprayable cushion body made of heat-expandable refractory material that is vulcanized into rubber mixed with expandable material, or heat-expandable mainly composed of soft synthetic resin A refractory treatment material that is partially or entirely covered with a refractory material.   The fireproof processing material according to claim 1, wherein the cushion body is a hexahedral block body, and the thermally expandable fireproof material is formed to cover at least one surface of the block body.   The refractory treatment material according to claim 1, wherein the cushion body is entirely covered with the thermally expandable refractory material having a bag shape.   The fireproof material according to any one of claims 1 to 3, wherein the cushion body is formed of a flame-retardant foam.