WO2010067637A1

WO2010067637A1 - Fire prevention section through structure and method for constructing the same

Info

Publication number: WO2010067637A1
Application number: PCT/JP2009/058407
Authority: WO
Inventors: 高成田中; 勝三新田; 和廣岡田
Original assignee: 積水化学工業株式会社
Priority date: 2008-12-11
Filing date: 2009-04-28
Publication date: 2010-06-17
Also published as: JP5427782B2; JPWO2010067637A1; CN102245950B; CN102245950A; KR20110106297A

Abstract

Provided is a fire prevention section through structure exhibiting excellent fire resistance and airtightness, and especially exhibiting excellent construction performance. A fire prevention section through structure comprises a sleeve fixed in a hole penetrating a section provided in a partition of a structure and having openings at the opposite ends, cable piping inserted into the sleeve, a sheet of thermally expandable refractory material provided in contact with the inside of the sleeve, a backup material fixed to the sheet of thermally expandable refractory material, and a putty-like sealing material provided in the openings at the opposite ends of the sleeve, wherein the putty-like sealing material is provided in contact with the backup material and closes the gap between the sleeve and the cable piping.

Description

Fire prevention compartment penetration structure and construction method thereof

The present invention relates to a structure for penetrating a fire prevention section provided in a partition part of a structure such as a building or a ship structure, and a construction method thereof.

Even when a fire occurs on one side of a partition part of a structure such as a building, a partition is usually provided on the partition part of the building or the like in order to prevent flames and smoke from spreading to the other side.
When construction such as electric wiring is performed inside the building, it is necessary to provide a hole penetrating this section and insert an electric cable or the like into the through hole.
In this case, if a wire cable or the like is simply inserted into the hole, there is a risk that flame, smoke, or the like diffuses from one section to another section through the through hole when a fire or the like occurs.
As a structure for preventing the diffusion of such flames and smoke, a structure is known in which a gap between the through hole and the electric cable is closed with a fireproof filler.
However, if the gap between the through hole and the electric cable is closed with a refractory filler, there is a problem that the replacement work and expansion work for the electric cable and the like become complicated.

In order to cope with this problem, a structure in which a hollow tube called a sleeve is provided in a hole penetrating the compartment and the wire cable or the like is inserted into the sleeve is usually employed.
In the case of this structure, it becomes easy to replace or expand the electric cable, etc., but only by inserting the electric cable or the like into the sleeve, one of the sleeves is passed through the gap between the electric cable and the like. Flame, smoke, etc. generated by fire etc. diffuse from one compartment to the other. In order to prevent this, various structures that close the gap between the sleeve and the electric cable have been proposed.

Specifically, a cylindrical member having an inner diameter that is approximately the same as the outer diameter of the electric cable or the like and having an outer diameter that is approximately the same as the inner diameter of the sleeve is prepared. An example is a structure in which the wire cable or the like is inserted into the cylindrical member after being installed inside the sleeve. Since this cylindrical member is made of polyvinyl chloride or the like, it has excellent handleability and can easily close almost all the gaps between the sleeve and the electric cable or the like.
However, in the case of the structure using this cylindrical member, it is not easy to add the cylindrical member later to the structure in which the wire cable or the like is already inserted into the sleeve. There was a sex problem.
On the other hand, there has also been proposed a structure using short members that are installed at both ends of the sleeve and respectively close the opening portions at both ends of the sleeve. Since this member has a shorter structure than the cylindrical member, it is distinguished from the cylindrical member and is generally called a plug.
Specifically, plugs having insertion holes of approximately the same size as the outer diameter of the cable and the like and having an outer diameter of approximately the same size as the inner diameter of the sleeve are respectively installed at both ends of the opening of the sleeve. A structure in which the wire cable or the like is inserted through the insertion hole of the plug is employed.
By installing this plug at both ends of the sleeve, the opening of the sleeve can be easily closed. Since this plug has a structure that can be divided into two members that can sandwich the electric wire cable from both sides, the electric wire cable and the like are already inserted into the sleeve. Plugs can be installed at both ends of the sleeve.
However, as with the cylindrical member, it is necessary to prepare many types of plugs according to the diameter of the sleeve and the size of the electric cable, etc. There was a problem in workability, such as interruption of construction work when there was a shortage of plugs.
The cylindrical member and the plug can be used without any problem when the cable or the like is inserted in the center of the sleeve, but the cable or the cable is inserted in a position different from the center of the sleeve. In such a case, there is a problem in workability such that the plug and the cylindrical member cannot be used.

In order to cope with this problem of workability, a sheet-like molded body made of a heat-expandable material is affixed to the inside of a sleeve installed in a hole penetrating the compartment, and the wire cable and the like inserted through the inside of the sleeve and the heat There has been proposed a fireproof compartment penetration structure in which a space is provided between a sheet-like molded body made of an expandable material.
Although it is said that construction workability and maintenance workability are excellent with this fireproof compartment penetration part structure, putty-like sealing materials such as caulking materials and putty materials are used as sealing materials to prevent smoke intrusion etc. due to fire There is no disclosure of what to do and the use of a backup material (Patent Document 1).

On the other hand, there has been proposed a fire prevention compartment penetration structure in which an inner cylinder made of a thermally expandable rubber material is installed inside a fireproof pipe that penetrates the compartment.
In the case of this structure, it is known that a caulking material or a putty-like sealing material such as a putty material can be used as a sealing material, and a backup material can be used (Patent Document 2).

JP 2006-29023 A Japanese Patent Laid-Open No. 11-19242

However, as a result of studies by the present inventors, it is not easy to maintain the airtightness of the fire-blocking section through-hole structure simply by closing the opening portions at both ends of the sleeve using a putty-like sealing material such as a caulking material or a putty material. I found out. *

Among the structures, especially in sections such as inside a ship where vibration and large shaking occur, vibrations are always transmitted to the electric cables and the like, so the seal part can be easily sealed by simply closing the opening at both ends of the sleeve with the putty-like sealing material. It becomes torn and it becomes difficult to maintain airtightness.

In order to improve the airtightness, a structure in which a backup material is fixed inside the sleeve and a putty-like sealing material is arranged inside the sleeve outside the backup material is also conceivable.

However, when the backup material is not sufficiently fixed to the inside of the sleeve, the backup material may move to the inside of the sleeve when inserting an electric cable or the like. Even when installed, the function of supporting the putty-like sealing material may not be achieved.
Conversely, if the adhesive of the backup material itself is increased in order to sufficiently fix the backup material to the inside of the sleeve, the backup material is fixed near the opening of the sleeve when the backup material is installed inside the sleeve. Therefore, it has been found that there is a problem in workability in the conventionally proposed structure such that it becomes difficult to install the backup material at an appropriate position inside the sleeve.

An object of the present invention is to provide a fire prevention compartment penetration structure having excellent fire resistance and airtightness, and particularly excellent workability, and a construction method thereof.

As a result of intensive studies by the present inventors in order to solve the above-mentioned problems, the thermally expandable refractory material sheet to which the backup material is fixed is rolled up and installed inside the sleeve passing through the compartment as a tubular shape. An object of the present invention is a fire-blocking section through-hole structure that is installed in contact with the backup material and in which the gap between the cable wiring pipes that pass through the inside of the sleeve and the inside of the sleeve is closed by a putty-like sealing material As a result, the present invention has been completed.

That is, the present invention
[1] A sleeve having openings at both ends, fixed to a hole penetrating a partition provided in a partition portion of the structure;
Cable wiring pipes inserted through the sleeve;
A thermally expandable refractory sheet installed in contact with the inside of the sleeve;
A backup material fixed to the thermally expandable refractory sheet;
A putty-like sealing material installed at both ends of the sleeve;
With
The putty-like sealing material is installed in contact with the backup material,
The putty-like sealing material provides a fireproof compartment penetration structure characterized by closing a gap between the cable wiring pipes and the sleeve.

The present invention also provides
[2] The sleeve is cylindrical.
The thermally expandable refractory material sheet has a shape rounded with the backup material inside,
The backup material is disposed on at least one of both ends of the opening of the sleeve or at least near the both ends of the opening of the sleeve;
The thickness of the backup material is in the range of 20% to 50% with respect to the radius of the opening of the sleeve.

The present invention also provides
[3] A step (1) of fixing a sleeve having openings at both ends to a hole penetrating a partition provided in a partition part of the structure;
Inserting the cable wiring pipes into the sleeve (2);
A step (3) of rolling the thermally expandable refractory material sheet, to which the backup material is fixed, with the backup material inside, and inserting it into the sleeve;
And (4) closing the gap between the cable wiring pipes and the inside of the sleeve by filling the inside of the sleeve with a putty-like sealing material from at least one end opening of each of the sleeves. ,
Whether the step (3) is performed after the step (2);
Alternatively, the present invention provides a construction method for a fireproof compartment penetration structure, wherein the step (2) is performed after the step (3).

In the fireproof compartment penetration part structure of the present invention, the thermally expandable refractory material sheet to which the backup material is fixed is rolled up with the backup material inside and inserted into the sleeve, and the thermally expandable refractory material sheet and the backup material, Since it can be installed, it is excellent in workability.

In the case of a fireproof compartment penetration structure using a conventional backup material, it was necessary to fix the backup material inside the sleeve, but in the case of the present invention, the backup material is fixed to the thermally expandable fireproof material sheet in advance. Therefore, it is not necessary to fix the backup material directly inside the sleeve, and the workability is excellent.

In addition, in the case of a fireproof compartment penetration structure using a conventional backup material, the backup material can be fixed and shifted from the position where the backup material should be originally installed due to frictional force or the like when a cable cable is inserted into the sleeve. There is sex. Until now, in order to check whether the fixed position of the backup material has deviated from the position where it should be originally installed, it has been necessary to actually confirm it visually.

However, since the backup material used in the present invention is fixed to the heat-expandable refractory material sheet, it greatly deviates from the position where the backup material should originally be installed due to the frictional force etc. when the cable cable is inserted into the sleeve. If, for example, the backup material is pushed into the back of the sleeve, the thermally expandable refractory material sheet protrudes from the opening on the opposite side of the sleeve. I can know.
In this case, it has an effect that it is possible to easily perform the positioning of the backup material inside the sleeve by pushing the thermally expandable refractory material sheet protruding from the opposite opening of the sleeve back into the sleeve, Excellent workability.

Also, the fireproof compartment penetration structure of the present invention can be constructed with or without cable wiring pipes inserted into the sleeve, and is excellent in workability.

In addition, it is not necessary to prepare a plug to close the sleeve for each sleeve shape and type of cable wiring pipe, and the thermally expandable refractory sheet with the backup material fixed is cut to an appropriate size at the construction site. However, it can be installed simply by rolling it and is excellent in workability.

In addition, when a plug or the like for closing the inside of the sleeve is used, the cable and cable pipe can be inserted only through the position of the insertion hole provided in the plug or the like. Since the backup material has a structure that wraps the cable and cable tube flexibly, the backup material can be applied without depending on the position of the cable cable tube that is inserted through the sleeve, and the workability is excellent.

Moreover, since the putty-like sealing material closes the gap between the cable wiring pipes and the inside of the sleeve, even when vibrations or vibrations are transmitted to the cable wiring pipes, the fire prevention compartment penetration structure of the present invention The seal part by the putty-like sealing material is not easily broken and high airtightness can be maintained. As a result, it is possible to prevent smoke, toxic gas, and the like associated with a fire or the like occurring in one of the sections from spreading to other sections.

In addition, when the fireproof compartment penetration structure of the present invention is exposed to heat such as a fire, the thermally expandable refractory material sheet inside the sleeve expands and closes the inside of the sleeve. Smoke and the like can be prevented from spreading to other compartments.

Further, in the fireproof compartment penetration structure of the present invention, when the sleeve has a cylindrical shape, the backup material has a thickness within a range of 20% to 50% with respect to the radius of the opening of the sleeve. Since the amount of material used can be reduced, the workability per unit time is excellent.

It is a model perspective view for demonstrating the relationship between the thermally expansible refractory material sheet used for this invention, and a backup material. It is the perspective view which illustrated the modification of the backup material used for this invention. It is the perspective view which illustrated the modification of the backup material used for this invention. It is the perspective view which illustrated the modification of the backup material used for this invention. It is the perspective view which illustrated the modification of the backup material used for this invention. It is the perspective view which illustrated the modification of the backup material used for this invention. It is the perspective view which illustrated the modification of the backup material used for this invention. It is a schematic principal part sectional drawing which illustrated the state by which the thermally expansible refractory material sheet was installed in the through-hole of the division. It is a typical principal part sectional drawing for demonstrating the state by which the putty-like sealing material was installed in the both-ends opening part of a sleeve. It is sectional drawing which illustrated the modification of the installation position with respect to the sleeve of a backup material. It is sectional drawing which illustrated the modification of the installation position with respect to the sleeve of a backup material. It is a typical principal part sectional drawing for demonstrating the state by which the putty-like sealing material was installed in the both-ends opening part of a sleeve. It is a schematic principal part sectional drawing for demonstrating the construction method of the fire prevention division penetration part structure of Example 1. FIG. It is a typical principal part sectional drawing for demonstrating the construction method of the fire prevention division penetration part structure of Example 2. FIG.

The present invention relates to a structure for penetrating a fireproof compartment. First, a sleeve used in the present invention will be described.
The sleeve is fixed to a hole penetrating a partition provided in a partition portion of a structure such as a building or a ship structure.

This sleeve is made of a material such as a metal material, an inorganic material, or an organic material, for example, but is preferably made of a material such as a metal material or an inorganic material because it maintains its shape even in the event of a fire. The sleeve may be made of one or more materials.

The shape of the sleeve is not particularly limited, but for example, the cross-sectional shape perpendicular to the long axis direction of the sleeve is a triangle, a polygon such as a quadrangle, a shape such as a rectangle whose sides are different in length, and a parallel shape. Examples of the shape include a quadrilateral shape with different internal angles, an elliptical shape, and a circular shape. Among these, those having a circular cross-sectional shape are preferable because of excellent workability.

The size of the cross-sectional shape of the sleeve is usually the thickness of the section provided in the partition part of the structure on the basis of the length of the side having the longest distance from the center of gravity of the cross-sectional shape to the outline of the cross-sectional shape. The content is 3 to 500%, preferably 3 to 150%.

The length of the sleeve is usually in the range of 100 to 1000%, preferably in the range of 150 to 500%, with respect to the thickness of the section provided in the partition portion of the structure. The thickness of the sleeve is usually in the range of 1 to 20% with respect to the outer diameter.

As a method of fixing the sleeve to the hole penetrating the partition, for example, in the case of a slab or the like that forms a partition such as a floor, a ceiling, or a wall of a building, the sleeve is inserted into the through hole formed in the slab or the like. And the like. After fixing the sleeve with a mold or the like, the gap between the sleeve and the through hole is fixed and solidified with a refractory material such as mortar, and then the mold is removed.

Further, for example, in the case of a steel plate or the like that forms a partition such as a floor, a ceiling, or a wall of a ship or the like, the sleeve is inserted into a through hole formed in the steel plate or the like, and the steel plate and the sleeve are integrated by welding or the like. And the like.

Next, wiring cable pipes used in the present invention will be described.
In the present invention, the wiring cable pipes are inserted through the sleeve.
Specific examples of such wiring cable pipes include, for example, cables such as electric cables and optical fiber cables, water transfer pipes such as water pipes, sewage pipes, pouring / drainage pipes, fuel transfer pipes, hydraulic pipes, gas Examples thereof include pipes, gas transfer pipes such as heating / cooling medium transfer pipes and vent pipes. Among these, cables such as an electric cable and an optical fiber cable are preferable from the viewpoint of preventing the spread of fire. If the cable is an electric cable, heat is transmitted to the sleeve in the event of a fire, and the expansion of the thermally expandable refractory material sheet is promoted. It is further preferable.

The wiring cable pipes can be used alone or in combination of two or more.

The above-mentioned wiring cable pipes are composed of one or more of metal materials, inorganic materials, organic materials, etc., but the outer peripheral portion is covered with an organic material such as a resin from the viewpoint of handleability. Is preferred. Specific examples of such organic materials include thermoplastic resins such as vinyl chloride.

The shape of the wiring cable pipes is not particularly limited. For example, the cross-sectional shape perpendicular to the major axis direction of the wiring cable pipes is a triangle, a polygon such as a quadrangle, and the length of each side such as a rectangle. Examples thereof include shapes having different angles, shapes having different internal angles such as parallelograms, ellipses, and circles. Among these, those having a circular cross-sectional shape are preferable because of excellent workability.

The size of the cross-sectional shape of the wiring cable pipe is usually in the range of 0.5 mm to 10 cm, preferably based on the length of the largest side from the center of gravity of the cross-sectional shape to the outline of the cross-sectional shape. Is in the range of 1 mm to 5 cm.

Next, the thermally expandable refractory material sheet used in the present invention will be described.
The thermally expandable refractory material sheet used in the present invention is a sheet obtained by forming a thermally expandable refractory material into a sheet shape. Examples of such a thermally expandable refractory material include resins, thermally expandable inorganic substances, and inorganic fillers. Examples thereof include a resin composition containing a material, a resin, a thermally expandable inorganic substance, a phosphorus compound and a resin composition containing an inorganic filler.

Such a heat-expandable refractory material is available as a commercial product. For example, a fire barrier manufactured by Sumitomo 3M Limited (a heat-expandable refractory material composed of a resin composition containing chloroprene rubber and vermiculite, expansion coefficient: 3 times, thermal conductivity: 0.20 kcal / m · h · ° C., Mitsui Metal Paint Co., Ltd., medium-cut (thermally expandable refractory material comprising a resin composition containing polyurethane resin and thermally expandable graphite, expansion coefficient: 4 Double, thermal conductivity: 0.21 kcal / m · h · ° C.), Sekisui Chemical Co., Ltd. Fiblock (epoxy thermal expansion refractory material, butyl rubber thermal expansion refractory material, etc.) and the like can be used.

The thermally expandable refractory material sheet used in the present invention is composed of a thermally expandable refractory material, or a laminate of the thermally expandable refractory material and one or more of inorganic fiber sheets, metal foils, nonwoven fabrics, and the like. Can be used.

Examples of the inorganic fiber used in the inorganic fiber sheet include inorganic fibers such as rock wool, glass wool, silica fiber, and alumina fiber.
Moreover, as metal foil, aluminum foil, copper foil, etc. are mentioned, for example.

The thickness of the thermally expandable refractory material sheet used in the present invention is appropriately set depending on the relationship between the expansion coefficient of the thermally expandable refractory material sheet used in the present invention and the inner diameter of the sleeve. The range is 5 to 20 mm. From the viewpoint of handleability, the thickness of the thermally expandable refractory material sheet is preferably in the range of 1 to 5 mm.

The thermally expandable refractory material sheet used in the present invention has a backup material fixed thereto.
The backup material can be fixed to a part or all of the thermally expandable refractory material sheet.
For example, a structure in which a backup material having the same surface shape as the surface shape of the thermally expandable refractory material sheet is fixed to the thermally expandable refractory material sheet, and a backup material is fixed to the center in the longitudinal direction of the thermally expandable refractory material sheet Examples thereof include a structure and a structure in which two or more backup materials are fixed to the thermally expandable refractory material sheet.
Moreover, although the said backup material can be fixed to the both surfaces or single side | surface of the said thermally expansible refractory material sheet, it is preferable to fix to the single side | surface of the said thermally expansible refractory material sheet from the surface of a handleability.

Next, the present invention will be described in detail based on embodiments with reference to the drawings.
First, a first embodiment of the present invention will be described.
FIG. 1 is a schematic perspective view for explaining the relationship between a thermally expandable refractory material sheet and a backup material used in the first embodiment of the present invention.
The thermally expandable refractory material sheet 1 used in the present invention has a back-up material 2 fixed thereto. The back-up material 2 has a polygonal column shape, a shape in which a polygonal column or a cylinder is cut in the longitudinal direction, and the like. Things can be used.
Among them, it is preferable to use a rectangular parallelepiped shape as illustrated in FIG. 1 from the viewpoint of handleability.
Further, two or more backup materials 2 may be fixed to the thermally expandable refractory material sheet 1, but the thermally expandable refractory material sheet is used from the viewpoint of reducing friction with electric wire and cable pipes and improving handling. It is preferable that two backup materials 2 are fixed in parallel to 1, and further, as exemplified in FIG. 1, the backup materials 2 are fixed to both ends of the thermally expandable refractory material sheet 1. More preferred.

It is preferable that the backup material 2 is a flexible resin foam or the like that comes into contact so as to wrap the cable and cable pipes from the periphery when the thermally expandable refractory material sheet 1 is rolled and inserted into the sleeve.

Examples of the resin foam include those that enclose voids inside the resin.
There is no limitation on the method of providing voids inside the resin. For example, a resin such as polyethylene resin, polypropylene resin, polystyrene resin, polyurethane resin, phenol resin, isocyanurate resin, and a foam component are melt-kneaded. It can be formed by a foaming method, a method of melting and kneading the above-described resins and a water-soluble inorganic salt such as sodium chloride, and then removing the water-soluble inorganic salt by an operation such as washing with water.
Resin foams having the voids are known, and commercially available products can be appropriately selected and used.

2 to 7 are perspective views illustrating modifications of the backup material used in the present invention.
The backup material used in the present invention is not limited to the rectangular parallelepiped shape illustrated in FIG. 1, for example, those provided with a cut 60 as illustrated in FIG. 2, and illustrated in FIGS. 3 to 7, respectively. A V-shaped cutout 62, a U-shaped cutout 64, etc., or a plurality of rectangular parallelepiped backup material pieces 66 aligned in one direction. A plurality of trapezoidal backup material pieces 68 arranged in one direction, etc., with a gap provided between the backup material pieces and the backup material pieces, and those having a cylindrical through hole 70, etc. Can be mentioned. These backup materials can be appropriately selected according to the purpose and application of the fireproof compartment penetration structure of the present invention.
The backup material illustrated in FIG. 1 is preferably used for a sleeve having an inner radius of 40 mm to 1000 mm because the repulsive force when the thermally expandable refractory sheet 1 is rolled is large. The back-up material exemplified in (1) is preferably used for a sleeve having an inner radius of 10 to 40 mm because the repulsive force when the thermally expandable refractory material sheet 1 is rolled is reduced.

FIG. 8 relates to the first embodiment of the present invention, and is a schematic cross-sectional view of a principal part illustrating a state in which a thermally expandable refractory material sheet is installed in a through hole of a compartment.
A sleeve 4 is inserted through a concrete wall 3 such as a building, and the periphery of the sleeve 4 is backfilled with a non-combustible material such as a mortar 5. The cable cable 6 is inserted through the inside of the sleeve 4.

The heat-expandable refractory material sheet 1 with the backup material 2 fixed at both ends as illustrated in FIG. 1 is rolled up so that the backup material 2 is inside, and inserted into the sleeve 4, so that the inside of the sleeve 4 The heat-expandable refractory material sheet 1 is installed in

The outer diameter of the thermally expandable refractory material sheet 1 can be adjusted by cutting the thermally expandable refractory material sheet 1 in a direction perpendicular to the longitudinal direction of the backup material 2 illustrated in FIG. In this way, by adjusting the length of the backup material 2 in the longitudinal direction, the thermally expandable refractory having an outer diameter that substantially matches the inner diameter of the sleeve 4 even when the inner diameter of the sleeve 4 changes. A material sheet 1 is obtained.

Since the thermally expandable refractory material sheet 1 is pressed into the sleeve 4 due to the resilience of the backup material 2, it can be fixed inside the sleeve 4 by appropriately adjusting the resilience of the backup material 2. it can.

In addition, the thermal expansion refractory material sheet 1 is attached to the sleeve by making the surface of the thermal expansion refractory material sheet 1 on the opposite side to which the backup material 2 is attached sticky or applying an adhesive. 4 can also be fixed inside.

In FIG. 8, the thermally expandable refractory material sheet 1 is installed in the sleeve 4 after the wiring cable pipes 6 are inserted into the sleeve 4, but the thermally expandable refractory material sheet 1 is placed in the sleeve 4. The wiring cable pipes 6 can be inserted into the sleeve 4 after being installed inside.

The backup material 2 is arranged in contact with the wiring cable pipes 6, and the inside of the sleeve 4 is closed by filling the sleeve 4 with a putty-like sealing material from both ends of the sleeve 4. Can do.

FIG. 9 relates to the first embodiment, and is a schematic cross-sectional view of a main part for explaining a state in which putty-like sealing materials are installed at both end openings of the sleeve.
As illustrated in FIG. 9, the putty-like sealing material 7 closes the gap between the cable wiring pipes 6 and the inside of the sleeve 4 outside the backup material 2.

As the putty-like sealing material 7 used in the present invention, for example, a building sealing material defined by JIS A5758, a building repair injection epoxy resin sealing material defined by JIS A6024, and a JIS A 6914 are specified. Examples include joint treatment materials for gypsum board, mortar, putty, and caulking. From the viewpoint of workability, the heat-resistant sealing material is preferably a putty, caulking, or the like formed by blending a rubber material such as chloroprene rubber or silicone with a filler, a flame retardant, and the like.

10 and 11 are cross-sectional views illustrating modifications of the installation position of the backup material 2 with respect to the sleeve 4.
The backup material 2 is preferably disposed on at least one of both ends of the opening of the sleeve 4 or at least one near the both ends of the opening of the sleeve 4.
As an installation position of the backup material 2 with respect to the sleeve 4, for example, as illustrated in FIG. 10, when the outermost surface of the backup material 2 protrudes from the opening of the sleeve 4, it is illustrated in FIG. 11. As shown in FIG. 2, when the outermost surface of the backup material 2 coincides with the opening of the sleeve 4, the outermost surface of the backup material 2 is inside the sleeve 4. Is mentioned.
The backup material 2 is more preferably installed so that the outermost surface is in a range of about 30% of the total length of the sleeve with respect to the opening of the sleeve 4, and the outermost surface extends from the opening to the inside of the sleeve. Further, it is more preferable to install the sleeve so that it is within 15% of the total length of the sleeve. This relationship is the same in the case of different embodiments of the present invention.

By adjusting the distance from the opening of the sleeve 4 to the backup material 2, the amount of the putty-like sealing material 7 filled in the sleeve 4 can be adjusted. In particular, even when a vessel or the like is greatly vibrated or shaken and tension is applied to the cable wiring pipes 6, the amount of the putty-like sealing material 7 filled in the sleeve 4 is adjusted so that the sealing by the putty-like sealing material 7 is performed. It is possible to prevent the portion from being torn.
Thereby, a fireproof division penetration part structure with higher airtightness can be formed.

As illustrated in FIG. 9, in the case of the fireproof compartment penetration structure of the present invention, a space 8 is provided between the cable wiring pipes 6 and the thermally expandable refractory material sheet 1 in the sleeve 4. . When the sleeve 4 is exposed to the heat of a fire or the like, the thermally expandable refractory material sheet 1 expands and closes the space 8, so that a fire flame or smoke is emitted from one compartment to the other compartment. It can be prevented from spreading.

Moreover, since the fire prevention compartment penetration structure of the present invention has extremely high workability, it can be constructed in a short time even compared to the fire prevention compartment penetration structure using a conventional putty-like sealing material. Excellent productivity per hour.

Next, a second embodiment of the present invention will be described.
FIG. 12 relates to the second embodiment of the present invention, and is a schematic cross-sectional view of a main part for explaining a state in which the putty-like sealing material 7 is installed at both end openings of the sleeve 4.
In the case of the first embodiment described above, the backup material 2 and the wiring cable pipe 6 are in contact with each other. However, in the second embodiment, there is a gap between the backup material 2 and the wiring cable pipe 6. The point is different.
As illustrated in the second embodiment of FIG. 12, when the sleeve 4 is cylindrical, the thickness of the backup material 2 is in the range of 20% to 50% with respect to the radius of the opening of the sleeve 4. It is preferable.
When the backup material does not exist, the putty-like sealing material 7 injected from the opening of the sleeve flows toward the inside of the sleeve 4. For this reason, in order to close the opening part of the sleeve 4, a large amount of putty-like sealing material is required, so that economical efficiency and workability may be lowered.
On the other hand, if the thickness of the backup material 2 is in the range of 20% to 50% with respect to the radius of the opening of the sleeve 4, the consumption of the putty-like sealing material 7 can be suppressed, and the construction can be performed in a short time. Can be completed, it is excellent in economic efficiency and workability.

Next, the fireproof compartment penetration structure and the construction method thereof according to the present invention will be described in more detail with reference to the accompanying drawings.
In addition, this invention is not limited at all by this Example.

Example 1
FIG. 13 is a schematic cross-sectional view of an essential part for explaining the construction method of the fireproof compartment penetration structure of the first embodiment.
A hole is made in the steel plate 10 that forms a section provided in a partition portion such as a cabin or a steering chamber above the waterline of the ship. By welding SGP20 (carbon steel pipe, gas pipe use) having a length of 200 mm and an inner diameter of 80.7 mm as a sleeve to this hole, SGP20 having openings at both ends was fixed to the hole of the steel plate 10.

The heat insulating material 12 is affixed to the steel plate 10 to enhance the cooling / heating efficiency inside the cabin, wheelhouse, and the like. Further, rock wool 14 is attached to the outer periphery of the SGP 20 as a heat insulating material.

Next, the signal cable 30 and the pipe 32 were inserted into the SGP 20 as cable wiring pipes.

Next, both sides of a 1 mm-thick epoxy resin-based thermally expandable refractory material (trade name Fibrok, manufactured by Sekisui Chemical Co., Ltd.) having the same shape as the thermally expandable refractory sheet illustrated in FIG. A urethane foam 42 having a cross section of 20 mm (width) × 20 mm (thickness) was fixed to both ends of one surface of the laminated heat-expandable refractory material sheet 40 with two adhesives.

The thermally expandable refractory material sheet 40 with the urethane foam 42 fixed at both ends was rolled and inserted into the SGP 20 so that the urethane foam 42 was on the signal cable 30 and pipe 32 side.

Next, the caulking material 50 is used to fill the caulking material 50 into the inside of the SGP 20 from both ends of the SGP 20, so that the signal cable 30 and the pipe 32 and the inside of the SGP 20 outside the urethane foam 42 are By closing the gap, a fireproof compartment penetration structure was obtained.

In Example 1, the time required from the insertion of the thermally expandable refractory material sheet 40 into the SGP 20 to the completion of the clogging with the caulking material 50 is 3 minutes and 35 seconds. The construction could be completed in a very short time compared to the case where the refractory material sheet was directly attached and fixed, or the case where the backup material was directly attached and fixed.

(Example 2)
FIG. 14 is a schematic cross-sectional view of an essential part for explaining the construction method of the fireproof compartment penetrating portion structure of the second embodiment.
A hole is made in the steel plate 10 that forms a section provided in a partition portion such as a cabin or a steering chamber above the waterline of the ship. By fixing SGP20 (carbon steel pipe, gas pipe use) having a length of 200 mm and an inner diameter of 80.7 mm (radius 40.35 mm) as a sleeve, the SGP20 having openings at both ends is fixed to the hole of the steel plate 10. did.

As in the case of the first embodiment, a heat insulating material 12 is attached to the steel plate 10 to enhance the cooling / heating efficiency inside the cabin, wheelhouse, and the like. Further, rock wool 14 is attached to the outer periphery of the SGP 20 as a heat insulating material.

Next, the pipe 32 was inserted into the SGP 20 as cable wiring pipes.

Next, both sides of a 1 mm-thick epoxy resin-based thermally expandable refractory material (trade name Fibrok, manufactured by Sekisui Chemical Co., Ltd.) having the same shape as the thermally expandable refractory sheet illustrated in FIG. A urethane foam 42 having a cross section of 20 mm (width) × 20 mm (thickness) was fixed to both ends of one surface of the laminated heat-expandable refractory material sheet 40 with two adhesives. The thickness of the urethane foam is 49.6% with respect to the radius of 40.35 mm of the inner diameter of the SGP20.

The thermally expandable refractory material sheet 40 with the urethane foam 44 fixed at both ends was rolled and inserted into the SGP 20 so that the urethane foam 42 was on the pipe 32 side. The distance from the opening of the SGP 20 to the urethane foam 42 is 10 mm.

Next, the caulking material 50 is used to fill the caulking material 50 into the inside of the SGP 20 from the openings at both ends of the SGP 20, thereby closing the gap between the pipe 32 and the inside of the SGP 20. Got.
The caking material 50 used in Example 2 was a Sekisui silicone sealant (manufactured by Sekisui Fuller, conforming to JIS A1439. It was cured within 20 minutes at 21 to 25 ° C. and 45 to 55% humidity. Yes.) The caking material 50 actually used to close one of the openings was 79.5 g.

(Example 3)
In the case of Example 2, it is exactly the same as the case of Example 2 except that a urethane foam having a cross section of 20 mm (width) × 10 mm (thickness) is used.
The thickness of this urethane foam is 24.8% with respect to the radius of 40.35 mm of the inner diameter of the SGP20. The caulking material 50 actually used to close one of the openings was 80.4 g.

(Comparative Example 1)
In the case of Example 2, it is exactly the same as the case of Example 2 except that a urethane foam having a cross section of 20 mm (width) × 5 mm (thickness) is used.
The thickness of this urethane foam is 12.4% with respect to the radius of 40.35 mm of the inner diameter of the SGP20. The caking material 50 actually used to close one of the openings was 107.5 g.

(Comparative Example 2)
In the case of Example 2, it is exactly the same as the case of Example 2 except that the urethane foam 44 was not used.
The caking material 50 actually used to close one of the openings was 109.5 g.

This application is based on application number Japanese Patent Application No. 2008-316172 filed in Japan on December 11, 2008, and the entire application is included in this application by reference. Part of it.

The fire prevention compartment penetration part structure of the present invention has a case where cable wiring pipes are inserted into a sleeve fixed to a hole penetrating a compartment provided in a partition part of a structure such as a building or a ship structure. But even if it is not inserted, it can be easily constructed. Moreover, since the fireproof compartment penetration part structure of this invention is excellent also in airtightness, it can be widely utilized especially as a fireproof compartment penetration part structure related to ships.

DESCRIPTION OF

SYMBOLS

1,40 Thermal expansion fireproof material sheet 2 Backup material 3 Concrete wall 4 Sleeve 5 Mortar 6 Wiring cable pipes 7 Putty-like sealing material 8 Space 10 Steel plate 12 Heat insulating material 14 Rock wool 20 SGP
30 Signal cable 32 Pipe 42 Urethane foam 50 Caulking material 60

Notch

62, 64 Notch 66, 68 Backup material piece 70 Through hole

Claims

A sleeve having openings at both ends, fixed to a hole penetrating a partition provided in a partition of the structure;
Cable wiring pipes inserted through the sleeve;
A thermally expandable refractory sheet installed in contact with the inside of the sleeve;
A backup material fixed to the thermally expandable refractory sheet;
A putty-like sealing material installed at both ends of the sleeve;
With
The putty-like sealing material is installed in contact with the backup material,
The fire-resistant compartment penetration structure, wherein the putty-like sealing material closes a gap between the cable wiring pipes and the sleeve.
The sleeve has a cylindrical shape;
The thermally expandable refractory material sheet has a shape rounded with the backup material inside,
The backup material is disposed on at least one of both ends of the opening of the sleeve or at least near the both ends of the opening of the sleeve;
The fire-blocking section penetration structure according to claim 1, wherein the thickness of the backup material is in the range of 20% to 50% with respect to the radius of the opening of the sleeve.
A step (1) of fixing a sleeve having openings at both ends to a hole penetrating a partition provided in a partition part of the structure;
Inserting the cable wiring pipes into the sleeve (2);
A step (3) of rolling the thermally expandable refractory material sheet, to which the backup material is fixed, with the backup material inside, and inserting it into the sleeve;
And (4) closing the gap between the cable wiring pipes and the inside of the sleeve by filling the inside of the sleeve with a putty-like sealing material from at least one end opening of each of the sleeves. ,
Whether the step (3) is performed after the step (2);
Alternatively, the step (2) is carried out after the step (3).