JP2002227325A - Construction method and structure for fire compartment penetration part - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a construction method and a structure for a fire compartment penetration part for preventing heat, fire, smoke and the like generated on one side of a partition part in the fire compartment penetration part from reaching the outer side even if a resin pipe, a cable, or a thermally insulated coated pipe constructed through the fire compartment is deformed or burnt in a fire. SOLUTION: In this fire compartment penetration part 5 construction method, the resin pipe, the cable, or the thermally insulated coated pipe 1 penetrating the fire compartment 3 arranged in the partition part of the building is passe through the fire compartment penetrating part 5. The fire compartment penetration part of the resin pipe, the cable, or the thermally insulated coated pipe 1 is wound with a tape type molding body 2 made of an adhesive thermally expansible material having an expansive magnification of 3-40 times in heating under quantity of radiating heat of 50 kw/m2, and then, a clearance between the fire compartment penetration part 5 and the resin pipe, the cable, or the thermally insulated coated pipe 1 is filled up with morter, a nonflammable material, or putty 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fire protection compartment for applying a fire protection measure to a resin pipe, a cable, or a heat insulating cladding pipe which is constructed to penetrate a fire protection compartment penetrating portion provided in a partition of a building. The present invention relates to a method for constructing a penetration portion and a fire penetration section penetration portion structure.

[0002]

2. Description of the Related Art In general, when pipes are to penetrate through a partition such as a floor, a wall or a partition of a building, a through hole (a section penetrating section) for penetrating the pipe or the like is provided, and a pipe is formed in the section penetrating section. (Water supply / drainage pipes, electric conduits, refrigerant pipes, ducts, etc.). In the case where the section penetration portion is a fire prevention section penetration portion, a fire-prevention method is employed in which a gap such as a pipe or a cable is filled with a filler such as mortar or the like for fire prevention and closed. The clogging of the gap by the filler is a necessary measure for delaying or preventing heat, flame, smoke and the like from the fire generated on one side of the partition from reaching the other side.

[0003] The above-mentioned pipe has heat resistance to itself such as a metal pipe,
In the case of non-combustible piping, there is no particular problem even if the conventional fire protection method is adopted for the fire penetration section penetration part, but the piping is
In the case of synthetic resin pipes such as hard vinyl chloride pipes or cross-linked polyethylene pipes, cables, or heat-insulating cladding pipes such as heat-insulating metal pipes or heat-insulating coating resin pipes, if the above fire prevention method is adopted, the piping itself, cables, and heat-insulating coatings will be used. Since the coating material of the pipe is flammable or inferior in heat resistance, a gap is formed in the penetration part of the fire protection compartment due to the burning of the synthetic resin and the coating material or the occurrence of thermal deformation in the event of a fire. It was not possible to prevent heat, flame, smoke and the like generated on one side of the steel from reaching the other side.

[0004] In order to solve the above-mentioned problems, kits for section penetrating measures (hereinafter, simply referred to as kits) for filling gaps caused by a fire with a material that expands when heated are marketed by various companies (for example, Furukawa Techno Material). "Heat Mel" etc.). Although these kits certainly exert their effects, it is necessary to prepare various types of resin pipes, cables, or refrigerant pipes, etc., because they are kits. Then, there is no particular problem, but in a site where various types of section penetration parts exist, a kit corresponding to each is required, which may cause confusion. In addition, since these kits are expensive, an inexpensive method for penetrating the fire protection compartment has been required.

[0005]

DISCLOSURE OF THE INVENTION In view of the above, the present invention has been made in view of the fact that a resin pipe, a cable, or a heat insulating cladding pipe constructed through a fire protection compartment may be deformed or burned out in a fire. In addition, the present invention provides a method for constructing a fire protection section penetration part for preventing heat, flame, smoke, etc. generated on one side of a partition part of the fire protection section penetration part from reaching the other side, and a fire protection section penetration part structure. With the goal.

[0006]

SUMMARY OF THE INVENTION According to the present invention, there is provided a method for constructing a penetration section of a fire protection section, and a structure of the penetration section for a fire section, wherein a resin pipe, a cable, or a heat insulating coating penetrating a fire section provided in a partition section of a building. In the method for constructing a penetration section of a fire protection section through which a pipe is inserted, an expansion ratio when the resin pipe, cable, or heat insulation cladding pipe is heated under an irradiation heat of 50 kW / m ² is 3 to 40. After winding a tape-shaped molded body made of a heat-expandable material that is twice as sticky, the gap between the fire-prevention section penetrating portion and the resin pipe, cable, or heat-insulated coating pipe is mortar, a non-combustible material, or putty. It is characterized by backfilling.

Hereinafter, the method for constructing a fire protection section penetration portion and the fire protection section penetration portion structure of the present invention will be described in detail. As shown in the perspective view of FIG. 1, first, a resin pipe, a cable,
Alternatively, a tape-shaped molded body 2 made of an adhesive heat-expandable material is wound around the outer surface of the heat insulating cladding tube 1 by utilizing the adhesiveness. (FIG. 1 shows a state in which a tape-shaped molded body is wound around a resin pipe, but a cable and a heat insulating covering tube can be wound similarly.) Next, as shown in the schematic perspective view of FIG. 2, the resin pipe, the cable, or the heat insulating cladding tube 1 around which the tape-shaped molded body 2 is wound is provided in a fire protection section 3 (slab or the like) which is a partition of a building. The fire protection compartment penetrating portion 5 (through hole) is inserted.

When a resin pipe, a cable, or a heat insulating cladding tube has already been installed in the fire protection section penetration portion 5 (through hole), winding work is performed in the through hole. Further, after winding the tape-shaped molded body having a release substrate laminated on at least one surface, at least one round so that the release substrate surface side is inside the resin pipe, cable, or heat insulation coating tube,
The release base material at the overlapping portion of the tape-shaped molded body may be peeled off, fixed using the adhesiveness, and then slid into the penetrating portion and inserted. Further, the tape-shaped molded body having a substrate or a release substrate laminated on at least one surface, a resin pipe,
After wrapping at least one round so that the base material or the release base material side is on the inside of the cable or the heat insulating coating tube, after fixing the tape-like molded body with the adhesive tape, it may be slid and inserted into the through portion. Good.

Next, as shown in a schematic sectional view in FIG.
The mortar, non-combustible material, or putty 4 is back-filled in the gap between the resin pipe, cable, or heat-insulating cladding tube 1 around which the tape-shaped molded body 2 is wound and the fire-prevention section penetration portion 5. Even if the resin pipe, cable, or heat-insulating cladding tube 1 around which the tape-shaped molded body 2 is wound undergoes thermal deformation due to heating in a fire or is burned out and a gap is formed, the tape-shaped molded body 2 generates heat. As a result, an expansion heat insulating layer is formed to close the gap and suppress heat conduction, thereby preventing heat, flame, smoke, and the like generated on one side of the partition from reaching the other side. Rock wool,
Examples include ceramic wool and glass wool.

When the width of the tape-shaped molded body 2 is shorter than the thickness of the fire-prevention section penetrating portion 5, it is preferable to arrange the tape-like molded body 2 so as to be substantially uniform in the thickness direction of the fire-prevention section penetrating section 5. It may be arranged offset to either side. In addition, when the thickness is longer than the thickness of the fire protection section penetration portion 5, it is preferable that the protrusions on both sides of the fire protection section penetration portion 5 are arranged to be substantially equal. Further, it is preferable that the resin pipe, the cable, or the heat-insulating cladding tube 1 around which the tape-shaped molded body 2 is wound be disposed so as to be substantially at the center of the through-hole of the fire-prevention section through portion 5.

[0011] The thickness of the tape-shaped molded product is 0.3 to 6
mm is preferred. When the thickness is less than 0.3 mm, it is necessary to wind many times to obtain the required winding thickness,
If it exceeds 6 mm, it becomes difficult to wind it to a predetermined thickness.

[0012] It is preferable that the winding thickness of the tape-shaped molded body is 0.5 to 20% of the outer diameter of the resin pipe, cable, or heat insulating cladding tube to be inserted. If the winding thickness is less than 0.5% of the outer diameter of the resin pipe, cable, or heat-insulating cladding tube, a sufficient expansion heat-insulating layer is not formed at the time of fire, and if it exceeds 20%, the opening area of the penetration portion must be increased. Have to be.

The width of the tape-shaped molded body is preferably 25 to 150% of the thickness of the fire section penetration part. If the thickness is less than 25%, a sufficient heat-insulating layer is not formed during a fire, and
If it exceeds 50%, it becomes impossible to bend the pipe in the case of the penetrating portion, and the degree of freedom in designing the pipe is reduced.

The tape-shaped molded body made of the above-mentioned heat-expandable material has an expansion ratio (ratio of the thickness after expansion to the initial thickness) of 3 to 40 when heated under the irradiation heat of 50 kW / m ^2.
It is twice as large, and is not particularly limited as long as it closes the gap between the fire protection section penetration portion and the resin pipe, cable, or heat insulating cladding tube at the time of fire, expresses fire resistance and heat resistance, and has adhesiveness. Those comprising the composition (I) or (II) are preferred.

As the resin composition (I), a resin composition containing a resin component containing a rubber component, neutralized heat-expandable graphite and an inorganic filler is used.

Examples of the rubber component include natural rubber (NR), isoprene rubber (IR), butadiene rubber (BR), and 1,2-polybutadiene rubber (1,2-B
R), styrene-butadiene rubber (SBR), chloroprene rubber (CR), nitrile rubber (NBR), butyl rubber (IIR), ethylene-propylene rubber (EPM, E
PDM), chlorosulfonated polyethylene (CSM),
Acrylic rubber (ACM, ANM), epichlorohydrin rubber (CO, ECO), polyvulcanized rubber (U), silicone rubber (O), fluoro rubber (FKM, FZ), urethane rubber (U), polyisobutylene rubber, butyl chloride rubber, etc. Is mentioned. These may be used alone or in combination of two or more.

Examples of resin components other than the rubber component include polyolefin resins such as polypropylene resin, polyethylene resin, poly (1-) butene resin and polypentene resin; polystyrene resins, acrylonitrile-butadiene-styrene. Resin, polycarbonate resin, polyphenylene ether resin, acrylic resin, polyamide resin, polyvinyl chloride resin, phenol resin, polyurethane resin and the like. These may be used alone or in combination of two or more.

The above resin component may be subjected to modification, cross-linking, etc. as long as the fire resistance of the resin composition (I) is not impaired. The method of modification and crosslinking is not particularly limited, and is performed by a known method.

The above-mentioned tape-shaped molded body preferably has self-adhesiveness in order to facilitate the work when wound around a resin pipe, a cable, or a heat insulating cladding tube. The resin composition to which self-adhesiveness is imparted is not particularly limited,
For example, butyl rubber mixed with a liquid resin such as polybutene and a petroleum resin as a tackifier may be used.

The above-mentioned heat-expandable graphite is a conventionally known substance. Powder such as natural scaly graphite, pyrolytic graphite, and quiche graphite is mixed with an inorganic acid such as concentrated sulfuric acid, nitric acid and selenic acid, and concentrated nitric acid and perchloric acid. A graphite intercalation compound produced by treating with acids, perchlorates, permanganates, dichromates, and strong oxidants such as hydrogen peroxide, and is a crystalline compound that maintains the layered structure of carbon It is.

The heat-expandable graphite treated as described above is further neutralized with ammonia, an aliphatic lower amine, an alkali metal compound, an alkaline earth metal compound or the like. In the present invention, this neutralized heat-expandable graphite is used.

The aliphatic lower amine is not particularly restricted but includes, for example, monomethylamine, dimethylamine,
Trimethylamine, ethylamine, propylamine, butylamine and the like.

The above-mentioned alkali metal compound and alkaline earth metal compound are not particularly restricted but include, for example, hydroxides, oxides, carbonates, sulfates and organic acid salts of potassium, sodium, calcium, barium, magnesium and the like. And the like.

The particle size of the neutralized heat-expandable graphite is preferably 20 to 200 mesh. When the particle size is smaller than 200 mesh, the degree of expansion of graphite is small, a predetermined expanded heat insulating layer cannot be obtained, and when the particle size is larger than 20 mesh, there is an advantage that the degree of expansion of graphite is large,
When kneading with a resin component described later, dispersibility deteriorates, and a decrease in physical properties is inevitable.

As a commercially available product of the neutralized heat-expandable graphite, for example, “Frame Cut GRE” manufactured by Tosoh Corporation
P-EG "," GRAFG "manufactured by UCAR Carbon
UARD ”and the like.

The inorganic filler is not particularly restricted but includes, for example, metal oxides such as alumina, zinc oxide, titanium oxide, calcium oxide, magnesium oxide, iron oxide, tin oxide, antimony oxide and ferrites; Water-containing inorganic substances such as calcium, magnesium hydroxide, aluminum hydroxide, and hydrotalcite; metal carbonates such as basic magnesium carbonate, calcium carbonate, magnesium carbonate, zinc carbonate, strontium carbonate, and barium carbonate; calcium sulfate, gypsum fiber, and silica Calcium salts such as calcium acid; silica, diatomaceous earth, dawsonite, barium sulfate,
Talc, clay, mica, montmorillonite, bentonite, activated clay, sepiolite, imogolite, sericite, glass fiber, glass beads, silica-based balun, aluminum nitride, boron nitride, silicon nitride, carbon black, graphite, carbon fiber, carbon balun, Charcoal powder, various metal powders, potassium titanate, magnesium sulfate “MOS” (trade name), lead zirconate titanate, aluminum borate, molybdenum sulfide, silicon carbide, stainless steel fiber, zinc borate, various magnetic powders, slag fiber, Fly ash and the like. These inorganic fillers may be used alone or in combination of two or more.

Among the above inorganic fillers, hydrated inorganic substances and / or metal carbonates are particularly preferred. It is considered that the hydrated inorganic substance and the metal carbonate contribute to the improvement of the strength of the combustion residue and the increase of the heat capacity because they function as aggregate. In particular, a carbonate (calcium carbonate, magnesium carbonate) of a metal belonging to Group II or Group III of the periodic table foams when the resin composition (I) is burned to form a baked product, and thus enhances shape retention. Is preferred.

The above-mentioned water-containing inorganic substances such as calcium hydroxide, magnesium hydroxide, and aluminum hydroxide endothermic due to water generated by a dehydration reaction during heating, and the temperature rise is reduced to obtain high heat resistance. In addition, oxide remains as a heating residue, and this works as an aggregate, which is particularly preferable in that the residue strength is improved. Magnesium hydroxide and aluminum hydroxide have different temperature ranges in which the dehydration effect is exerted. Therefore, when used in combination, the temperature range in which the dehydration effect is exerted expands, and a more effective temperature rise suppression effect is obtained.

The particle size of the inorganic filler is 0.5 to
It is preferably 100 μm, more preferably 1 to 50 μm. When the amount of the inorganic filler is small, since the dispersibility greatly affects the performance, a small particle size is preferable, but when the particle size is less than 0.5 μm, secondary aggregation occurs.
Dispersibility deteriorates. When the addition amount is large, as the high filling proceeds, the viscosity of the resin composition increases and the moldability decreases.However, by increasing the particle size, the viscosity of the resin composition can be reduced. Those having a large diameter are preferred. On the other hand, when the particle size exceeds 100 μm, the surface properties of the molded article and the mechanical properties of the resin composition deteriorate.

It is more preferable to use a combination of the above-mentioned inorganic filler having a large particle diameter and a small particle having a small particle diameter. High filling is possible.

As the inorganic filler, for example, aluminum hydroxide “Hygilite H-particle having a particle size of 1 μm” is used.
42M "(manufactured by Showa Denko KK)," Heidilite H-31 "having a particle size of 18 m (manufactured by Showa Denko KK), and" Whiteton SB red "having a particle size of 1.8 m, which is calcium carbonate (manufactured by Shiraishi Calcium Co., Ltd.) ), And “BF300” (manufactured by Bihoku Powder Chemical Co., Ltd.) having a particle size of 8 μm.

In the resin composition (I), the amount of the neutralized heat-expandable graphite is preferably 15 to 300 parts by weight based on 100 parts by weight of the resin component. The amount is 1
If the amount is less than 5 parts by weight, a fire-resistant heat-insulating layer having a sufficient thickness is not formed, so that the fire resistance is deteriorated. If the amount exceeds 300 parts by weight, the mechanical strength is greatly reduced, and it cannot be used.

In the resin composition (I), the amount of the inorganic filler is from 30 to 5 per 100 parts by weight of the resin component.
00 parts by weight is preferred. If the amount is less than 30 parts by weight, sufficient heat resistance cannot be obtained due to the decrease in heat capacity, and if it exceeds 500 parts by weight, the mechanical strength is greatly reduced and the product cannot be used.

The total amount of the neutralized heat-expandable graphite and inorganic filler is preferably 200 to 600 parts by weight based on 100 parts by weight of the resin component. If the total amount is less than 200 parts by weight, sufficient fire resistance cannot be obtained, and if the total amount exceeds 600 parts by weight, the mechanical strength is greatly reduced, and it cannot be used.

As the resin composition (II), a resin composition containing a resin component including a rubber component, a phosphorus compound, neutralized heat-expandable graphite and an inorganic filler is used. The neutralized heat-expandable graphite and inorganic filler used in the resin composition (II) are the same as those in the resin composition (I).

By blending a phosphorus compound in the resin composition (II), flame retardancy and shape retention of combustion residues are improved.

The phosphorus compound is not particularly restricted but includes, for example, red phosphorus; triphenyl phosphate, tricresyl phosphate, trixylenyl phosphate,
Various phosphoric esters such as cresyl diphenyl phosphate and xylendiphenyl phosphate; metal phosphates such as sodium phosphate, potassium phosphate and magnesium phosphate; ammonium polyphosphates;
And the like. Among these, from the viewpoint of fire resistance, red phosphorus, ammonium polyphosphates, and compounds represented by the following general formula (1) are preferable, and ammonium polyphosphates are more preferable in terms of performance, safety, cost, and the like. preferable.

[0038]

Embedded image

In the formula, R ¹ and R ³ are hydrogen, C ¹ -C 1
6 represents a linear or branched alkyl group or an aryl group having 6 to 16 carbon atoms. R ² is a hydroxyl group, a linear or branched alkyl group having 1 to 16 carbon atoms, a linear or branched alkoxyl group having 1 to 16 carbon atoms, an aryl group having 6 to 16 carbon atoms, Represents an aryloxy group represented by Formulas 6 to 16.

The above-mentioned red phosphorus improves the flame-retardant effect by adding a small amount. As the red phosphorus, commercially available red phosphorus can be used, but from the viewpoint of moisture resistance, safety such as not spontaneously igniting during kneading, those obtained by coating the surface of red phosphorus particles with a resin are preferably used. .

The above ammonium polyphosphates include:
Not particularly limited, for example, ammonium polyphosphate, melamine-modified ammonium polyphosphate and the like,
Ammonium polyphosphate is preferably used in terms of handleability and the like. Commercially available products include, for example, “EXOLIT AP422” and “EXOLIT AP” manufactured by Clariant.
462 ", Sumitomo Chemical Co., Ltd." Sumisafe P ", Chisso Corp." Terage C60 "," Terage C70 ",
"Terage C80" and the like.

The compound represented by the above general formula (1) is not particularly restricted but includes, for example, methylphosphonic acid, dimethylmethylphosphonate, diethylmethylphosphonate, ethylphosphonic acid, propylphosphonic acid, butylphosphonic acid, 2-methyl Propylphosphonic acid, t-butylphosphonic acid, 2,3-dimethyl-butylphosphonic acid, octylphosphonic acid, phenylphosphonic acid, dioctylphenylphosphonate, dimethylphosphinic acid, methylethylphosphinic acid, methylpropylphosphinic acid, diethylphosphinic acid, Examples include dioctylphosphinic acid, phenylphosphinic acid, diethylphenylphosphinic acid, diphenylphosphinic acid, and bis (4-methoxyphenyl) phosphinic acid. Among them, t-butylphosphonic acid is expensive, but is preferable in terms of high flame retardancy.
The above phosphorus compounds may be used alone or in combination of two or more.

The above phosphorus compound is preferably calcium carbonate,
It is considered that the reaction with a metal carbonate such as zinc carbonate promotes expansion. Particularly, when ammonium polyphosphate is used as a phosphorus compound, a high expansion effect is obtained. In addition, it acts as an effective aggregate and forms a combustion residue having high shape retention after burning.

In the above resin composition (II), the compounding amount of the phosphorus compound is 50 to 1 with respect to 100 parts by weight of the resin component.
50 parts by weight are preferred. If the amount is less than 50 parts by weight, sufficient shape retention of the combustion residue cannot be obtained, and if the amount exceeds 150 parts by weight, the mechanical properties are greatly reduced, and the resin cannot be used.

In the above resin composition (II), the blending amount of the neutralized heat-expandable graphite is as follows.
For the same reason as described above, 1 to 100 parts by weight of the resin component
5-300 parts by weight are preferred.

In the resin composition (II), the amount of the inorganic filler is preferably 30 to 500 parts by weight based on 100 parts by weight of the resin component for the same reason as in the resin composition (I).

The total amount of the phosphorus compound, the neutralized heat-expandable graphite and the inorganic filler is preferably from 200 to 600 parts by weight based on 100 parts by weight of the resin component. If the total amount is less than 200 parts by weight, sufficient fire resistance cannot be obtained, and if the total amount exceeds 600 parts by weight, the mechanical strength is greatly reduced, and it cannot be used.

The resin compositions (I) and (II) may be phenol-based, amine-based or resin-based as long as their physical properties are not impaired.
Sulfur-based antioxidants, metal damage inhibitors, antistatic agents,
Stabilizers, crosslinking agents, lubricants, softeners, pigments and the like may be added.

The resin compositions (I) and (II) are obtained by melt-kneading the above-mentioned components using a known kneading apparatus such as an extruder, a kneader mixer, a two-roller, a Banbury mixer and the like. be able to. The resin composition can be formed into a tape-shaped molded body by molding by a known method.

The above-mentioned tape-shaped molded body may be in the form of a roll, or may be cut in advance in accordance with the length to be wound around a resin pipe, a cable, or a heat insulating cladding tube.

A base material or a release base material may be laminated on the tape-shaped molded body as long as the heat expansion performance is not impaired. The substrate is not particularly limited, and examples thereof include paper, woven fabric, nonwoven fabric, film, wire mesh, and a laminate of these substrates.

As the paper, known papers such as kraft paper, Japanese paper, and K liner paper can be used. Non-combustible paper highly filled with aluminum hydroxide and calcium carbonate;
Flame-retardant paper with a flame retardant incorporated or a flame retardant applied to the surface;
When rock wool, ceramic wool, inorganic fiber paper using glass fiber, carbon fiber paper, or the like is used, fire resistance can be improved.

As the nonwoven fabric, a wet nonwoven fabric made of polypropylene, polyester, nylon, cellulose fiber or the like, a long-fiber nonwoven fabric, or the like can be used. As the film, a resin film of polyethylene, polypropylene, polyamide, polyester, nylon, acrylic, or the like can be used. As the metal foil, an aluminum foil, a stainless steel foil, or the like can be used. As the wire mesh, a metal lath or the like can be used in addition to a wire mesh that is usually used.

Also, a laminate of these substrates may be used, and examples thereof include polyethylene film laminated nonwoven fabric, polypropylene laminated nonwoven fabric, aluminum foil laminated paper, and aluminum glass cloth.

The release substrate is not particularly limited, and includes those subjected to a usual release treatment such as silicone treatment, and those obtained by subjecting the substrate to a release treatment may be used.

The base material or the release base material may be laminated on one side or both sides of the tape-shaped molded body, or the base material may be laminated on one side and the release substrate on the other side. . Further, the base material may be used by being sandwiched between two tape-shaped molded bodies.

In the case of using a tape-shaped molded product obtained by laminating the release substrate, the release substrate may be peeled off and then wound around a resin pipe, a cable, or a heat-insulating coated tube. When winding one or more rounds of the outer circumference of the tube, only the release substrate in the overlapping portion of the tape-shaped molded body may be peeled off and wound.

When a base material is laminated on the tape-shaped molded body, information may be described on the base material. In the case where the tape-shaped molded body is a roll, information may be written inside the core material. The above information is information on applicable piping, used parts, and the like, and by describing the information, confusion at the time of construction can be prevented.

(Function) The method for constructing a fire protection compartment penetration portion and the fire protection compartment penetration portion structure of the present invention are characterized in that a resin pipe, a cable, or a heat insulating cladding tube inserted into the fire protection compartment penetration portion undergoes thermal deformation during a fire. Even if it is burned out and a gap is formed, the wound tape-like molded body thermally expands and closes the gap to suppress heat conduction, so that heat, fire, smoke, etc. generated on one side of the fire protection section penetration portion From reaching the other side. The tape-shaped molded body is cut and wound in accordance with the outer diameter of the resin pipe, cable, or heat insulating cladding tube during construction,
There is no need to prepare each member suitable for the outer diameter of the pipe,
Confusion at the site can be prevented. Moreover, the tape-shaped molded body has adhesiveness, and the work of winding around a resin pipe, a cable, or a heat insulating cladding tube is easy, so that the construction can be simplified.

[0060]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in more detail with reference to examples, but the present invention is not limited to these examples.

Example 1 42 parts by weight of butyl rubber (“Butyl # 065” manufactured by Exxon), 50 parts by weight of polybutene (“Polybutene # 100R” manufactured by Idemitsu Petrochemicals), and hydrogenated petroleum resin (“ESCOLETS” manufactured by Tonex) # 5
320 ") 8 parts by weight, 100 parts by weight of ammonium polyphosphate (" EXOLIT AP422 "manufactured by Clariant), 30 parts by weight of neutralized heat-expandable graphite (" Frame Cut GREP-EG "manufactured by Tosoh Corporation), hydroxide Aluminum (Showa Denko “Heidilite H-31”) 50
Parts by weight and calcium carbonate (Bihoku Powder Chemical "BF30
0 ") After kneading 100 parts by weight using a kneading roll,
A 2 mm-thick sheet was produced from the obtained resin composition by press molding. An aluminum glass cloth was bonded to one side of the obtained sheet, and cut into a width of 160 mm to produce a tape-shaped molded body.

The above-mentioned tape-shaped molded body was wound around the outer surface of a rigid vinyl chloride pipe having an outer diameter of 140 mm (nominal diameter 125) by one turn so that the aluminum glass cloth was on the outside (winding thickness: 2 mm) to prepare a test body. . Since this tape-shaped molded body had self-adhesiveness, the winding operation could be easily performed. In addition, because of its small thickness, it could be easily cut with a cutter or scissors.

As shown in FIG. 2, this test piece was inserted into a round fire-prevention section for floor 5 (in FIG. 2, the diameter of the through-hole was opened in a slab 3 (thickness t = 150 mm in FIG. 2)). D = 175 mm), the wrapped portion of the tape-shaped molded body 2 is inserted so that the wrapped portion of the tape-shaped molded body 2 projects 10 mm upward from the surface of the slab 3, and then, as shown in FIG. And fixed. The test specimen fixed to the slab was subjected to a two-hour fire resistance test for floors based on ISO 834. As a result, the hard vinyl chloride pipe was almost melted and burned off, but the heat conduction was suppressed by the expanded heat insulating layer of the tape-shaped molded article. No flame penetration was observed on the non-heated surface side.

(Example 2) 42 parts by weight of butyl rubber ("Butyl # 065" manufactured by Exxon), 50 parts by weight of polybutene ("Polybutene # 100R" manufactured by Idemitsu Petrochemical Co., Ltd.), and hydrogenated petroleum resin ("ESCOLETS" manufactured by Tonex Corporation) # 5
320 ") 8 parts by weight, 100 parts by weight of ammonium polyphosphate (" EXOLIT AP422 "manufactured by Clariant), 30 parts by weight of neutralized heat-expandable graphite (" Frame Cut GREP-EG "manufactured by Tosoh Corporation), hydroxide Aluminum (Showa Denko “Heidilite H-31”) 50
Parts by weight and calcium carbonate (Bihoku Powder Chemical "BF30
0 ") After kneading 100 parts by weight using a kneader, the obtained resin composition was calender-molded to laminate aluminum foil release paper on one side, length 6 m, width 1000
Rolls having a thickness of 0.5 mm and 0.5 mm were prepared. The obtained raw roll was cut into a width of 60 mm by a ring cutter to prepare a tape-shaped molded body.

The above-mentioned tape-shaped molded product was formed into a polyethylene sheath tube (corrugated tube) having an outer diameter of 42 mm (nominal diameter 36) [inner tube: outer diameter 2
An aluminum foil release paper was wound around the outer surface of a crosslinked polyethylene pipe having a diameter of 7 mm (nominal diameter: 20) by one turn (winding thickness: 0.5 mm) to prepare a test body.
Seven test pieces prepared in the same manner were prepared. Since this tape-shaped molded body had self-adhesiveness, the winding operation could be easily performed. In addition, because of its small thickness, it could be easily cut with a cutter or scissors.

As shown in FIG. 4, these seven test pieces were passed through a rectangular fire-prevention section penetrating portion 5 (300 × 75 mm) formed in a slab having a thickness of 100 mm, and then tape-shaped. The wound portion of the body 2 should be 10 mm out of the heating surface, and the interval between the polyethylene sheath tubes 1 b should be 10 m.
m, and the mortar 4 was filled in the gap between the test piece and the slab 3 and fixed. The specimen fixed to the slab was subjected to a two-hour fire resistance test for walls based on ISO 834. As a result, the polyethylene pipe was almost completely melted and burned out. No penetration of the flame was observed on the heated side.

(Example 3) A polyethylene sheath tube having an outer diameter of 42 mm (nominal diameter 36) [inner tube: a cross-linked polyethylene tube having an outer diameter of 27 mm (nominal diameter 20)] was prepared using the same tape-shaped molded body as in Example 2. Was wound around the outer surface of the sample for one turn (wrapping thickness: 0.5 mm) to produce a test body. This specimen is shown in FIG.
As shown in FIG. 2, the slab 3 (in FIG. 2, the thickness t = 1)
In the round fire-prevention section for floor 5 opened at 50 mm) (the diameter D of the through hole in FIG. 2 is D = 200 mm), the winding portion of the tape-shaped molded body is 10 m upward from the slab 3 surface to the floor.
Then, as shown in FIG. 3, the gap between the test piece and the slab 3 was filled with mortar 4 and fixed.

With respect to the test specimen fixed to the slab, I
As a result of a 2-hour fire resistance test for floors based on SO 834, the polyethylene pipe was melted and burned out, but the heat conduction was suppressed by the expanded heat insulating layer of the tape-shaped molded body, and penetration of the flame was observed on the non-heated surface side. Did not.

(Example 4) A test piece similar to that of Example 2 was used.
As shown in FIG. 2, the slab 3 (in FIG.
= 100 mm), the tape-shaped molded body 2 is inserted into the round fire-prevention section for wall 5 (in FIG. 2, the diameter D of the through-hole D = 200 mm) so that the wound portion of the tape-shaped molded body 2 comes out from the non-heating surface by 10 mm. After that, as shown in FIG. 3, a mortar 4 was filled in the gap between the test piece and the slab 3 and fixed. The test piece fixed to the slab was subjected to a 2-hour fire resistance test for walls based on ISO 834. As a result, the polyethylene pipe was melted and burned out. No flame penetration was observed on the surface side.

(Example 5) 40 parts by weight of butyl rubber ("Butyl # 065" manufactured by Exxon), 50 parts by weight of polybutene ("Polybutene # 100R" manufactured by Idemitsu Petrochemical Co., Ltd.), and hydrogenated petroleum resin ("ESCOLETS" manufactured by Tonex Corporation) # 5
320 ") 10 parts by weight, 45 parts by weight of ammonium polyphosphate (" EXOLIT AP422 "manufactured by Clariant), 30 parts by weight of neutralized heat-expandable graphite (" Frame Cut GREP-EG "manufactured by Tosoh Corporation), and Aluminum hydroxide (Heidilite H-3 manufactured by Showa Denko KK)
1)) After kneading 200 parts by weight using a kneading roll,
The obtained resin composition was pressed into a 1.5 mm
A tape-shaped molded body having a thickness of 80 mm was produced.

The tape-shaped molded body was wound around the outer surface of a cross-linked polyethylene pipe having an outer diameter of 114 mm by two turns (thickness of winding: 3 mm) to prepare a test body. Since this tape-shaped molded body had self-adhesiveness, the winding operation could be easily performed. In addition, because of its small thickness, it could be easily cut with a cutter or scissors. As shown in FIG. 2, this test piece was slab 3 (thickness t = 100 in FIG. 2).
After the tape-shaped molded body is inserted through the fire-prevention section penetrating portion 5 (in FIG. 2, the diameter D of the through-hole D = 150 mm) opened in the center of the slab 3, as shown in FIG. As described above, the gap between the test piece and the slab 3 was filled with rock wool 4 and fixed.

With respect to the specimen fixed to the slab, I
As a result of a 2-hour fire resistance test for walls based on SO 834, the crosslinked polyethylene pipe melted and burned off, but the heat conduction was suppressed by the expanded heat-insulating layer of the tape-shaped molded article, and flame penetration was observed on the non-heated surface side. Was not done.

Example 6 50 parts by weight of butyl rubber (“Butyl # 065” manufactured by Exxon), 20 parts by weight of a polyethylene resin (“EG8200” manufactured by Dow Chemical Company), and polybutene (“Polybutene # 100” manufactured by Idemitsu Petrochemical Co., Ltd.)
R ") 21 parts by weight, hydrogenated petroleum resin (" Escolets # 5320 "manufactured by Tonex Corporation) 4 parts by weight, red phosphorus (" EXOLIT RP602 "manufactured by Clariant) 80 parts by weight, neutralized heat-expandable graphite ( UCAR Car
Bon GRAFGuard # 220-50N)
After kneading 60 parts by weight, 50 parts by weight of magnesium hydroxide ("Kisuma 5B" manufactured by Kyowa Chemical Co., Ltd.) and 100 parts by weight of calcium carbonate ("BF300" manufactured by Bihoku Powder Co., Ltd.) using a pressure kneader, calender molding is performed. To form a 1 mm thick, 100 mm wide tape-like molded product on which release paper was laminated.

After releasing the release paper from the tape-shaped molded body, the tape-shaped molded body was wound around the outer surface of the cable CV-T having an outer diameter of 40 mm by one turn (wrapping thickness: 1 mm) to prepare a test body. Since this tape-shaped molded body had self-adhesiveness, the winding operation could be easily performed. In addition, because of its small thickness, it could be easily cut with a cutter or scissors. As shown in FIG. 2, this test body was opened in a slab 3 (in FIG.
(In FIG. 2, the diameter of the through hole is D = 75 mm). Then, as shown in FIG. 3, the wound portion of the tape-shaped molded body 2 is flush with the slab on the heating surface side.
The putty 4 was filled in the gap between the test piece and the slab 3 and fixed.

With respect to the specimen fixed to the slab, I
As a result of a two-hour fire resistance test for floors based on SO 834, the cable was melted and burned out, but the heat conduction was suppressed by the expanded heat insulating layer of the tape-shaped molded body, and no flame penetration was observed on the non-heated surface side. Was.

Example 7 42 parts by weight of butyl rubber (“Butyl # 065” manufactured by Exxon), 50 parts by weight of polybutene (“Polybutene # 100R” manufactured by Idemitsu Petrochemical Co., Ltd.), and hydrogenated petroleum resin (“ESCOLETS” manufactured by Tonex Corporation) # 5
320 ") 8 parts by weight, 100 parts by weight of neutralized heat-expandable graphite (" Frame Cut GREP-EG "manufactured by Tosoh Corporation), and 200 strontium carbonate (manufactured by Sakai Chemical Co., Ltd.)
After the weight parts were kneaded using a pressure kneader, a 2 mm-thick tape-shaped molded body was produced by press molding.

The tape-shaped molded body was wound around the outer surface of a heat-insulated copper tube (outer diameter 50 mm, heat-insulating layer 10 mm) by one turn (wrapped thickness 2 mm) to prepare a test body. Since this tape-shaped molded body had self-adhesiveness, the winding operation could be easily performed. In addition, because of its small thickness, it could be easily cut with a cutter or scissors. As shown in FIG. 2, this test piece was taped to the fire protection section penetration portion 5 (in FIG. 2, the diameter D of the through hole D = 75 mm) opened in the slab 3 (thickness t = 100 mm in FIG. 2). After the wound portion of the shaped body 2 was inserted so as to protrude evenly from the surface of the slab 3, the mortar 4 was filled in the gap between the test body and the slab 3 and fixed as shown in FIG.

With respect to the specimen fixed to the slab, I
As a result of a 2-hour fire resistance test for walls based on SO 834, the heat-insulated cladding was melted and burned off, but the heat conduction was suppressed by the expanded heat-insulating layer of the tape-shaped molding, and flame penetration was observed on the non-heated surface side. Was not done.

(Example 8) The same tape-shaped molded body as in Example 2 was wound around the outer surface of a polyethylene sheath tube having an outer diameter of 42 mm (nominal diameter 36) by one turn (the winding thickness was 0.5 in each case).
mm), seven different types of inner tubes were inserted to produce seven types of test specimens. As the inner pipe, a polyethylene pipe having an outer diameter of 34 mm (nominal diameter 25) and an outer diameter of 34 mm (nominal diameter 2
5) Crosslinked polyethylene pipe, outer diameter 34 mm (nominal diameter 2
5) Polybutene tube, outer diameter 34.6 mm (nominal diameter 25)
Coated stainless steel flexible tube, outer diameter 32.2 mm (copper pipe outer diameter 22.2 mm, heat insulating material thickness 5 mm) coated copper pipe, outer diameter 3
2.3 mm (nominal diameter 25) metal-reinforced cross-linked polyethylene pipe, and outer diameter 28 mm (CV600V 38 mm ² ×
4C) was used. Since this tape-shaped molded body had self-adhesiveness, the winding operation could be easily performed. In addition, because of its small thickness, it could be easily cut with a cutter or scissors.

As shown in FIG. 4, these test pieces were
After passing through the rectangular fire protection section penetration part 5 (538 × 76 mm) for the wall opened in the slab 3 having a thickness of 100 mm, the winding portion of the tape-shaped molded body is 10 m from the non-heating surface of the slab 3.
The mortar 4 was filled and fixed in the gap between the test piece and the slab 3 by disposing the polyethylene sheath pipe 1b so that the distance between the test pieces and the slab 3 was 10 mm.

The test piece fixed on the slab was
As a result of a 2 hour fire resistance test for walls based on SO 834, the resin part was almost melted and burned off, but the heat conduction was suppressed by the expanded heat insulating layer of the tape-shaped molded body, and flame penetration was observed on the non-heated surface side. Was not done.

Example 9 The same tape-shaped molded body as in Example 2 was wound around the outer surface of seven different kinds of pipes by one turn (the winding thickness was 0.5 mm in each case), and seven kinds of test pieces were obtained. Was prepared. Note that seven types of inner pipes used in Example 8 were used for the pipes. The above seven types of test specimens are shown in FIG.
As shown in the figure, the wound portion of the tape-shaped molded body 2 is slab-wrapped around the floor-shaped round fire-prevention section penetrating portion 5 (in FIG. 2, the diameter D of the through-hole D = 75 mm) formed in seven slabs having a thickness of 150 mm. After each of the slabs 3 was inserted so as to protrude from the three surfaces upward by 10 mm in the upward direction, the mortar 4 was filled in the gap between the test piece and the slab 3 and fixed. Since this tape-shaped molded body had self-adhesiveness, the winding operation could be easily performed. In addition, because of its small thickness, it could be easily cut with a cutter or scissors.

The test piece fixed to the slab was
As a result of a two-hour fire resistance test for floors based on SO 834, the resin portion was almost melted and burned off, but the heat conduction was suppressed by the expanded heat insulating layer of the tape-shaped molded body, and penetration of the flame on the non-heated surface side was observed. Was not done.

(Example 10) As shown in FIG. 5, seven types of test pieces used in Example 9 were cut into a slab 3 having a thickness of 100 mm, and were formed into a rectangular fire-prevention section through wall 5 (538 × 5). 7
6 mm), the tape-shaped molded body 2 is arranged so that the winding portion of the tape-shaped molded body 2 comes out of the heating surface by 10 mm, and the interval between the specimens is 10 mm. Mortar 4 was filled and fixed.
For the specimen fixed to the slab, ISO 834
As a result of a 2-hour fire resistance test for walls based on JIS, most of the resin was melted and burned off, but the heat conduction was suppressed by the expanded heat insulating layer of the tape-shaped molded body, and no flame penetration was observed on the non-heated surface side. Was.

(Embodiment 11) The seven types of specimens used in Embodiment 9 were slab 3 having a thickness of 150 mm as shown in FIG.
Then, seven round floor fireproof section penetration portions 5 (in FIG. 2, the diameter of the through holes D = 75 mm) are opened, and the winding portion of the tape-shaped molded body 2 extends 10 mm upward from the slab 3 surface to the floor. The mortar 4 is inserted into the gap between the test piece and the slab 3 by inserting the test piece so that the interval between the test pieces is 10 mm.
And fixed. The test piece fixed to the slab was subjected to a two-hour fire resistance test for floors based on ISO 834. As a result, the resin portion was almost completely melted and burned off. No penetration of the flame was observed on the heated side.

[0086]

According to the present invention, the method for constructing a fire protection section penetration portion and the fire protection section penetration structure of the present invention have the above-mentioned construction, and the resin pipe, cable, or heat insulating cladding tube inserted into the fire protection section penetration portion undergoes thermal deformation during a fire. Even if it is caused or burned out, the wound tape-shaped molded body thermally expands to form an expanded heat insulating layer, thereby closing the gap and suppressing heat conduction. Prevent generated heat, flame, smoke, etc. from reaching the other side.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view showing a state in which a tape-shaped molded body is wound around a resin pipe.

FIG. 2 is a schematic perspective view showing a state in which a resin pipe around which a tape-shaped molded body is wound is inserted into a fire protection section penetration portion.

FIG. 3 is a schematic cross-sectional view showing a state in which mortar is filled around a resin pipe inserted through a fire protection section penetration portion.

FIG. 4 is a schematic perspective view showing a state where the test pieces of Examples 2 and 8 are fixed to a slab.

FIG. 5 is a schematic perspective view showing a state where the test piece of Example 10 is fixed to a slab.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Resin piping, a cable, or a heat insulation coating tube 1a Inner tube 1b Polyethylene sheath tube 2 Tape-like molded object 3 Fireproof section (slab) 4 Mortar, noncombustible material or putty 5 Fireproof section penetration part D Diameter of through hole t Fireproof section penetration section Thickness

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2E001 DE04 DE07 FA00 FA03 FA11 FA71 GA07 GA12 GA26 GA65 GA76 HA01 HA33 HB04 HD11 HE01 JA06 JA21 JB01 JB07 KA03 LA16 MA02 MA04 MA06 MA08

Claims (9)

[Claims] 1. A method for installing a resin pipe, a cable, or a heat insulating cladding through which a fire protection compartment provided in a partition of a building is inserted, wherein the resin piping, cable, or heat insulating coating is provided. In the fire section of the pipe
After winding a tape-shaped molded body made of an adhesive heat-expandable material having an expansion ratio of 3 to 40 times when heated under an irradiation heat of 50 kw / m ² , the fire protection section penetration portion and the resin pipe A method for constructing a penetration part in a fire protection section, characterized by backfilling a gap with a mortar, a noncombustible material, or a putty with a cable, a cable, or a heat insulating cladding tube. 2. The thickness of the tape-shaped molded product when wound around a resin pipe, a cable, or a heat insulating cladding tube is 0.5 to 20 times the outer diameter of the resin piping, cable, or heat insulating cladding tube.
2. The method according to claim 1, wherein the width of the tape-shaped molded body is 25 to 150% of the thickness of the fire-prevention section penetration part. 3. The tape-shaped molded body is composed of a resin composition containing a resin component containing a rubber component, neutralized heat-expandable graphite, and an inorganic filler. 15 to 300 parts by weight of neutralized heat-expandable graphite and inorganic filler 30 based on 100 parts by weight of the resin component
The method according to claim 1 or 2, wherein the total amount of the neutralized thermally expandable graphite and the inorganic filler is 200 to 600 parts by weight. . 4. The above-mentioned tape-shaped molded body is composed of a resin component (II) containing a resin component including a rubber component, a phosphorus compound, neutralized heat-expandable graphite and an inorganic filler. The amount is 50 to 150 parts by weight of a phosphorus compound, 15 to 300 parts by weight of a neutralized heat-expandable graphite, and 30 to 50 parts by weight of an inorganic filler based on 100 parts by weight of the resin component.
The fire protection compartment penetration part according to claim 1 or 2, wherein the total amount of the phosphorus compound, the neutralized heat-expandable graphite and the inorganic filler is 200 to 600 parts by weight. Construction method. 5. The method according to claim 3, wherein the inorganic filler is a hydrated inorganic substance and / or a metal carbonate. 6. A release base material is laminated on at least one surface of the tape-shaped molded body, and is wrapped at least once around a resin pipe, a cable, or a heat insulating coating tube such that the release substrate surface side is inside, The method according to any one of claims 1 to 5, wherein the mold release base material at the overlapping portion of the tape-shaped molded body is peeled off and fixed using the adhesiveness. . 7. The fire protection according to claim 1, wherein a base material is laminated on at least one surface of the tape-shaped molded body, and information is written on the base material surface. Construction method of section penetration part. 8. The fire protection section penetration part according to claim 1, wherein the tape-shaped molded body is a roll, and information is described inside the core material. Construction method. 9. A fire penetration section penetrating part structure constructed by the construction method according to claim 1. Description: