JP2009264577A - Soundproof drain pipe - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method of arranging a fireproof soundproof drain pipe suitable for piping in a portion requiring fire resistance of a building, particularly, an arrangement method of a fireproof soundproof drain pipe applicable in a zone (the Order 8 zone) regulated by the article 8 of the Fire Protection Law Enforcement Order. <P>SOLUTION: The soundproof drain pipe comprises: a pipe body comprising pipes and joints or any one of collecting pipes or their combination; a sound absorption layer comprising one or two types selected from a glass wool or glass fiber sheet using glass fiber with an average fiber diameter of 5-10 μm as a component fiber, and having a fiber length of 0.2-75 mm and a fiber density of >70 to ≤100 kg/m<SP>3</SP>, or a glass wool or glass fiber sheet using glass fiber with an average fiber diameter of 5 μm or less and a fiber length of 45 mm or less as a component fiber, and having a fiber density of 70 kg/m<SP>3</SP>or less; and a sound insulation layer formed by covering an outer side of the sound absorption layer. A heat insulating member is further covered on only a zone penetrating part, and it is arranged by piercing a zone part. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a soundproof drain pipe that penetrates a fire prevention section such as a floor or a wall of a building, and in particular, can be disposed by penetrating into a section defined by Article 8 of the Fire Service Act (Decree 8). The present invention relates to a soundproof drain pipe having excellent soundproof performance and fireproof performance.

  In recent years, with the demand for more comfortable indoor environments and living spaces, noise countermeasures have been greatly improved, and rational and reliable prevention of noise such as water supply and drainage noise that occurs when fluid inside the pipe flows. Countermeasures are required. On the other hand, it is necessary for the soundproof tube to satisfy a certain fire resistance requirement depending on the installation position.

  Therefore, the present inventor comprises a tubular body and a sound insulating material covering the periphery of the tubular body as a soundproof drainage pipe penetrating a fireproof section such as a floor or a wall of a building, and the outer peripheral surface of the tubular body and the In a soundproof drain pipe having a sound absorbing layer as a sound absorbing layer between the sound insulating material and the inner peripheral surface, a glass wool sheet as a sound absorbing material is disposed on the sound absorbing layer so as to cover the outer peripheral surface of the tubular body, and is disposed on the sound absorbing layer. The glass wool sheet has a density of 70 kg / m3 or less, and a fiber length of the short glass fiber constituting the glass wool sheet is 45 mm or less, which is proposed (Patent Document 1).

  Such a soundproof pipe has sufficient fireproof performance as a pipe penetrating into the co-residential area in the Fire Service Act, and can be said to be an effective invention in that respect. However, there are two types of divisions in the Fire Service Act: Decree 8 divisions and cohabitation divisions. Since the fire resistance required for the piping penetrating the cohabitation area defined in connection with Article 29-4 of the Fire Service Construction Ordinance is 1 hour or more, the invention described in Patent Document 1 is sufficiently installable. However, the section defined by Article 8 of the Fire Service Act Construction Order (Department 8) has a required fire resistance of 2 hours or more, and the pipe described in Patent Document 1 is difficult to use.

Japanese Patent Application No. 2006-308071

  Therefore, the present inventor is applied to a fireproof soundproof drain pipe suitable for piping in a place where fire resistance of a building is required, in particular, to a section defined by Article 8 of the Fire Service Act Construction Order (Order 8 section). The aim is to provide a possible fireproof soundproof drain.

  In order to solve the problems as described above, the measures taken by the present invention are as follows.

The soundproof drain pipe adopted by the invention according to claim 1 is a pipe body composed of any one of a pipe, a joint, a collecting pipe, or a combination thereof;
The average fiber diameter of 5 to 10 [mu] m, and fiber length of the fibers constituting the glass fiber 0.2~75mm, 70kg / ^{m 3,} greater and glass wool was fiber density in a range not exceeding 100 kg / ^{m 3} or One type selected from a glass fiber sheet or a glass fiber sheet having an average fiber diameter of less than 5 μm and a fiber length of 45 mm or less as a constituent fiber and a fiber density of 70 kg / m ³ or less, or glass fiber sheet A sound-insulating member composed of two types of sound-absorbing layers and a sound-insulating layer coated on the outside of the sound-absorbing layers,
The gist is that at least the partition through portion is further covered with a heat insulating member and disposed in the partition portion.

  The gist of the soundproof drain pipe adopted by the invention according to claim 2 is that the thickness of the glass wool or glass fiber sheet disposed in the sound absorbing layer is 20 mm or less.

  The gist of the soundproof drain pipe adopted by the invention according to claim 3 is that the sound insulation layer is formed of a sheet material having a polymer material as a base material.

  The gist of the soundproof drain pipe taken by the invention according to claim 4 is that the heat insulating member includes an adhesive layer.

  In the soundproof drain pipe adopted by the invention according to claim 5, the heat insulating member is one or more selected from glass wool, rock wool, glass fiber, silica fiber, ceramic fiber, metal fiber, alumina fiber, and carbon fiber. The gist is to consist of.

  The gist of the soundproof drain pipe adopted by the invention according to claim 6 is that the soundproof member is slidably fixed around the tubular body by a heat shrink film provided on the outer surface of the soundproof member.

  The effects obtained by adopting the above means are as follows.

According to the present invention, when applied to piping such as a building water supply / drainage device or an air conditioner, a glass fiber having an average fiber diameter of 5 to 10 μm and a fiber length of 0.2 to 75 mm is used as a constituent fiber, and 70 kg. / m ^3, greater and 100 kg / m ³ glass wool or glass ranged from fiber density does not exceed the fiber sheet or an average fiber diameter of less than 5 [mu] m, and the fiber length and the fibers constituting the following glass fiber 45mm , One or two sound absorbing layers selected from glass wool or glass fiber sheet having a fiber density of 70 kg / m ³ or less effectively absorb noise such as water supply / drainage noise generated in the pipe by the flow of fluid, The sound insulation layer disposed on the outside suppresses the propagation of noise to the outside of the sound insulation member 13 and exhibits excellent sound insulation.

Moreover, according to the soundproof drainage pipe of the present invention, as the sound absorbing layer, glass fiber having an average fiber diameter of 5 to 10 μm and a fiber length of 0.2 to 75 mm is used as a constituent fiber, and exceeds 70 kg / m ³ . Further, glass wool or glass fiber sheet having a fiber density not exceeding 100 kg / m ³ , or glass fiber having an average fiber system of less than 5 μm and a fiber length of 45 mm or less as a constituent fiber, 70 kg / m ³ or less In addition to having superior fire resistance compared to conventional soundproof drainage pipes, the use of glass wool or glass fiber sheet with a fiber density of 50%, and when installing a soundproof drainage pipe, insulates only the partition penetrations By further covering the members and arranging them through the compartments, the fire resistance performance required for the compartments defined in Article 8 of the Fire Service Act (Department 8) is sufficiently satisfied. I can do it.

  Hereinafter, the best mode for carrying out the “soundproof drain pipe” of the present invention will be described with reference to the drawings.

1 and 2 are a perspective view and a cross-sectional view according to Embodiment 1 of a soundproof drain pipe of the present invention. Example 1 shows an example using a normal tube. As shown in FIGS. 1 and 2, the soundproof drain pipe 11 used in the present invention is formed by covering the circumferential surface of a tubular body 12 with a soundproof member 13 so as to be composed of a sound insulating layer 16 and a sound absorbing layer 15. .

  The tube body 12 is formed of various hard materials and soft materials, and has a cylindrical shape so that fluid flows through the tube body 12. The material for forming the tube body 12 is not particularly limited, and examples thereof include rigid resins such as polyvinyl chloride and polyethylene, metals, and the like. These materials are used alone or in combination. For example, the tubular body 12 can be configured to be partially bendable by configuring a part of the tubular body 12 from a hard material and configuring the other part of the tubular body 12 from a soft material.

  The soundproofing member 13 covering the circumferential surface of the tubular body 12 includes a sound insulating layer 16 and a sound absorbing layer 15. The sound insulation layer 16 is a layer disposed outside the sound insulation member 13 and has a function of effectively suppressing noise generated in the tubular body 12 from propagating to the outside of the sound insulation member 13. An adhesive layer or an adhesive layer may be provided between the sound absorbing layer and the sound insulating layer.

  As the sound insulation layer 16 having the above function, a sheet material based on a polymer is used, and the material of the sound insulation layer 16 is not limited, but a polyolefin resin such as polyethylene and polypropylene, or vinyl chloride alone. In addition to the resin polymerized in step 1, a vinyl chloride copolymer resin obtained by random copolymerization or block copolymerization with at least one monomer copolymerizable with vinyl chloride monomer, such as vinyl acetate-vinyl chloride. Copolymer, ethylene-vinyl chloride copolymer, vinylidene chloride-vinyl chloride copolymer, or a vinyl chloride graft copolymer resin obtained by graft copolymerization with a resin that can be graft copolymerized with vinyl chloride copolymer, for example, List vinyl chloride resins such as ethylene-vinyl acetate graft copolymer and polyurethane-vinyl chloride copolymer Door can be.

The surface density of the sound insulation layer is preferably 1.5 to 5.0 kg / m ² . When the surface density of the sound insulation layer 16 is less than 1.5 kg / m ² , sufficient sound insulation performance cannot be obtained. When the surface density exceeds 5.0 kg / m ² , the sound insulation layer 16 itself becomes heavy. In addition, the workability deteriorates, and problems such as dripping or peeling after the soundproofing member is attached to the pipe may occur.

  In addition, the sound insulation layer 16 is filled with a filler such as calcium carbonate, barium sulfate, talc, magnesium oxide, alumina, titanium oxide, barite, iron oxide, zinc oxide, graphite, etc., thereby improving sound insulation. Can do. The filler is preferably filled with a filling amount of 50 to 95% by weight so that the mechanical strength of the sound insulation layer 16 is not lowered while ensuring sufficient sound insulation. Filling the filler not only improves the sound insulation, but also adjusts the viscosity of the sound insulation layer 16 and reduces the blending cost.

  The sound absorbing layer 15 effectively absorbs noise such as water supply / drainage noise generated in the pipe body 12 and has fire resistance. As the sound absorbing layer 15 having such a function, glass wool or glass fiber sheet was used in the soundproof drain pipe 11 of the present invention.

  Glass wool or glass fiber sheet used as this sound-absorbing layer is converted into thermal energy by viscous friction, etc. in the process in which sound incident in the sheet (air-borne sound) passes through repeated collisions between the constituent fibers of the sheet. As a result, the function of attenuating the sound incident on the sound absorbing layer 15 is exhibited.

The glass wool or the glass fiber sheet has an average fiber diameter of 5 to 10 μm and a glass fiber having a fiber length of 0.2 to 75 mm, which exceeds 70 kg / m ³ and 100 kg / m ^3. The fiber density is in a range not exceeding. The range of the average fiber diameter, fiber length, and fiber density of the glass fiber has critical significance necessary for ensuring a sufficient air-borne sound attenuation effect (sound absorption). In addition, since glass wool or a glass fiber sheet is produced from the glass fiber which is a nonflammable material, the sound absorption layer 15 itself also has fire resistance.

The fiber density of the glass wool or glass fiber sheet, exceed 70 Kg / ^{m 3,} and was in the range that does not exceed 100 kg / ^{m 3.} If the fiber density exceeds the upper limit value, sufficient sound absorption cannot be secured, and if the fiber density falls below the lower limit value, a sufficient sheet form cannot be maintained, causing glass wool or glass fiber sheet peeling, and fiber scattering. There is a risk of bringing.

When a glass fiber having an average fiber diameter of less than 5 μm and a fiber length of 45 mm or less is used as a constituent fiber, a fiber density of 70 kg / m ³ or less is used. This is because when glass fibers having this average fiber diameter are used, if a fiber density exceeding 70 kg / m ³ is used, voids are insufficient and sufficient sound absorption performance cannot be secured.

  The method for producing glass wool or glass fiber is not particularly limited, and it is produced by a known method such as a conventional flame method or centrifugal method. In this case, a sizing agent such as polyethylene, polypropylene, polyester and phenol resin may be added for the purpose of stabilizing the sheet form.

  The thickness of the sound absorbing layer 15 is 20 mm or less, more preferably 10 mm or less, and a range of 5 mm or more. When the thickness of the sound absorbing layer 15 is less than 5 mm, a sufficient sound absorbing effect cannot be obtained. When the thickness exceeds 10 mm, the sound absorbing layer 15 becomes bulky, and when the heat insulating member 17 is covered, the soundproof member 13 is tubular. This is because there is a possibility that the pipe body 12 cannot be piped into the space of the construction place when it is fixed to the 12 circumferential surface.

  As a preferred embodiment of the above-described soundproof drainage pipe, as shown in FIGS. 1 and 2, the soundproof member 13 is covered with a heat shrink film 14 such as polyvinyl chloride, polyethylene, polyester, polypropylene, polystyrene, etc., and this is heat shrunk. Then, the soundproof member 13 is fastened and fixed to the tube body 12 by the heat shrinkage force of the heat shrink film 14, and the soundproof member 13 is slidably fixed around the tube body. The soundproof member 13 is not necessarily required to cover the tube body 12 without a gap. Rather, if a gap (wrinkle or the like) is generated between the tube body 12 and the soundproof member, the transmission loss of the sound insulation layer can be improved by providing a partial air layer.

  The soundproof drain pipe 11 as described above is disposed in the partition portion as follows. First, the sheet-like heat insulating member 17 is wound around the soundproof drain pipe 11 to be covered. The covering portion of the heat insulating member 17 covers at least the penetrating portion, and portions other than the penetrating portion (that is, the upper and lower portions of the penetrating portion on the floor and under the floor) are not particularly limited and may be appropriately covered as necessary. . Preferably, the penetration portion and at least 1 m below the penetration portion (under the floor) may be covered. Thereby, the soundproof drain pipe 11 covered with the heat insulating member 17 is formed.

  As shown in FIG. 3, the soundproof drain pipe 11 covered with the heat insulating member 17 is inserted into a through hole 21 having a larger diameter than the soundproof drain pipe 11 provided on the fire wall or floor forming the fire prevention compartment. Since a gap is formed between the inner peripheral surface of the through hole 21 and the soundproof drain pipe 11, cement mortar or rock wool mortar is formed in the gap between the inner peripheral surface of the through hole 21 and the outer peripheral face of the soundproof drain pipe 11. Fill. Then, when the cement mortar or rock wool mortar is cured, the through hole 21 formed in the wall surface or floor surface is closed as shown in FIG. 4, and the soundproof drain pipe 11 is fixed and disposed in the fireproof section. .

  As the heat insulating member 17 used here, a sheet material composed of one or more selected from glass wool, rock wool, glass fiber, silica fiber, ceramic fiber, metal fiber, alumina fiber, and carbon fiber is used. . These materials are excellent as heat insulating members, and in addition to being able to sufficiently satisfy the fire resistance performance required in the 8th division, they also have sound absorption performance, so that the sound insulation performance in the penetrating portion can also be improved. .

  In the heat insulating member of the present invention, the adhesive layer 18 may be provided on the back surface of the heat insulating layer 19. Examples of the material for forming the adhesive layer 18 include butyl rubber (IIR), isoprene rubber (IR), natural rubber (NR), butadiene rubber (BR), 1,2-polybutadiene rubber (1,2-BR), and styrene. -Butadiene rubber (SBR), chloroprene rubber (CR), nitrile rubber (NBR), ethylene-propylene rubber (EPM, EPDM), 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., polyvinyl acetate, ethylene-vinyl acetate Vinyl acetate resins such as copolymers, acrylic resins, urethane resins, silicone resins Butter, hydrocarbon resins, alkylphenol resins, other acrylonitrile, rosin, rosin triglycerides, include rosin resins such as hydrogenated rosin. These may be used independently and 2 or more types may be used together. Among these, in this embodiment, butyl rubber (IIR), isoprene rubber (IR), or acrylic resin, which is inexpensive and excellent in adhesiveness, is preferable. If an adhesive layer is provided in advance, workability is improved because it can be bonded to the soundproof drain pipe simply by winding it during construction.

  Furthermore, as shown in FIG. 5, it is good to provide the base fabric layer 20 in the surface opposite to the surface of the adhesion layer of the heat insulation layer 19 used for this invention. The base fabric layer 20 is formed of a nonwoven fabric. By providing the base fabric layer, the cement mortar or the rock wool mortar enters the interior of the base fabric layer 20, that is, between the fibers. The cement mortar or rock wool mortar is cured in a state of being in close contact with the fibers forming the base fabric layer 20 and is firmly bonded to the base fabric layer 20. As a result, the soundproof tube 11 is supported in a good state by cement mortar or rock wool mortar, and rattling is suppressed as much as possible. The base fabric layer 20 may be previously formed integrally with the heat insulating layer 19 (in this case, any means for integration may be used. For example, the base fabric layer 20 may be integrated by adhesion with an adhesive layer). .), An adhesive layer may be provided on the base fabric layer 20, and may be attached to the heat insulating member layer 19 on site if necessary.

As a fiber used for the nonwoven fabric used for the base fabric layer 20, for example, a polyester fiber, a polypropylene fiber, a polyethylene fiber, a polyamide fiber, an acrylic fiber, an aromatic polyamide fiber, glass wool, rock wool, and other flameproof fire fibers are preferable. . As for the surface density of this base fabric layer 20, 5-300 g / m < ² > is preferable, More preferably, it is 10-100 g / m < ² >. When the surface density of the base fabric layer 20 is less than 5 g / m ² , the gap area between the fibers forming the base fabric layer 20 is increased, and the shape retainability may be reduced. For this reason, uniform adhesion between the cement mortar or rock wool mortar and the soundproof tube 11 cannot be obtained. On the other hand, when the surface density of the base fabric layer 33 exceeds 300 g / m ² , no further effect is observed with respect to the adhesiveness between the mortar 25 and the soundproof tube 11, which is uneconomical.

  Since the installed soundproof drain pipe is installed in a state where the heat insulating member is covered at the section penetration part, the soundproof drain pipe sufficiently satisfying the fire resistance required in the section defined in Article 8 of the Fire Service Act Construction Order It can be.

  The soundproof drain pipe according to the second embodiment is an example in which a joint or a collecting pipe is used as a pipe body, a soundproof member is wound around the pipe body, and a heat insulating member is disposed in the partition through portion. 6 to 7 are a sectional view and an enlarged sectional view according to Example 2 of the soundproof drain pipe of the present invention. FIG. 8 is a diagram showing a method of winding a soundproof drain pipe around a pipe body.

  The tube body 12 is made of a rigid resin such as polyvinyl chloride or polyethylene, a metal, or the like. A soundproof member 13 is wound around the pipe body 12 as a joint or a collecting pipe. As shown in FIG. 7, the soundproof member includes a sound absorbing layer 15, a sound insulating layer 16, and a heat shrink film 19. Since the materials used for each are the same as in Example 1, the description thereof is omitted.

  When the soundproofing member 13 is wound around the joint or the collecting pipe, the shape is complicated as compared with the pipe of the first embodiment. Therefore, as shown in FIG. It is good to have a form that fits in. Specifically, in order to be able to wind the joint and the collecting pipe, each is formed in a cylindrical shape having an inner diameter corresponding to the outer periphery according to each mounting site, and an opening 22 is provided in a part thereof. By preparing the soundproof member 13 in such a shape in advance, the soundproofing member 13 can be mounted by fitting into the joint or the collecting pipe from the opening portion 22. At this time, it may be formed so that it can be overlapped by several millimeters to several centimeters so that there is no gap in the opening 22.

  After the soundproof member 13 is wound around the joint and the collecting pipe in this way, the soundproof drainage pipe 12 provided with the heat insulating member 19 is provided with a soundproof drainage provided on a fireproof wall or floor forming a fireproof section as shown in FIG. Insert the soundproof drain pipe into the fire prevention compartment by inserting it into a through hole with a larger diameter than the pipe and filling cement gap or rock wool mortar in the gap between the inner peripheral surface of this through hole and the outer peripheral face of the soundproof drain pipe. To do.

  The soundproof drainpipe according to the present invention has industrial applicability when the soundproof drainpipe that penetrates the fireproof section, particularly when the soundproof drainpipe is disposed in a section defined by Article 8 of the Fire Service Act Construction Order.

1 is a perspective view of a soundproof drain pipe according to Embodiment 1. FIG. 1 is a cross-sectional view of a soundproof drain pipe according to Embodiment 1. FIG. It is a figure which shows the process of arrange | positioning the soundproof drain pipe which concerns on Example 1 in a fire prevention division. It is a figure which shows the process of arrange | positioning the soundproof drain pipe which concerns on Example 1 in a fire prevention division. It is sectional drawing of the heat insulation member of the soundproof drain pipe which concerns on Example 1. FIG. It is sectional drawing of the soundproof drain pipe which concerns on Example 2. FIG. It is an expanded sectional view of the part of the circle of Drawing 6 of the soundproof drain pipe concerning Example 2. It is a perspective view which shows the state which attaches a soundproof member to the soundproof drainage pipe which concerns on Example 2. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Soundproof drain pipe 12 Tubing body 13 Soundproof member 14 Heat-shrink film 15 Sound absorption layer 16 Sound insulation layer 17 Heat insulation member

Claims (6)

A tube made of any one or a combination of pipes, joints or collecting pipes, and
The average fiber diameter of 5 to 10 [mu] m, and fiber length of the fibers constituting the glass fiber 0.2~75mm, 70kg / ^{m 3,} greater and glass wool was fiber density in a range not exceeding 100 kg / ^{m 3} or One type selected from a glass fiber sheet or a glass fiber sheet having an average fiber diameter of less than 5 μm and a fiber length of 45 mm or less as a constituent fiber and a fiber density of 70 kg / m ³ or less, or glass fiber sheet A sound-insulating member composed of two types of sound-absorbing layers and a sound-insulating layer coated on the outside of the sound-absorbing layers,
A soundproof drain pipe characterized in that at least the partition penetrating portion is further covered with a heat insulating member and disposed in the partition portion.   The soundproof drain pipe according to claim 1, wherein the thickness of the glass wool or glass fiber sheet disposed in the sound absorbing layer is 20 mm or less.   The soundproof drain pipe according to claim 1 or 2, wherein the sound insulation layer is formed of a sheet material having a polymer material as a base material.   The soundproof drain pipe according to any one of claims 1 to 3, wherein the heat insulating member includes an adhesive layer.   The said heat insulation member consists of 1 type, or 2 or more types chosen from glass wool, rock wool, glass fiber, a silica fiber, a ceramic fiber, a metal fiber, an alumina fiber, and a carbon fiber, Any one of Claim 1 to 4 characterized by the above-mentioned. The soundproof drain pipe according to crab.   The soundproof drain pipe according to any one of claims 1 to 5, wherein the soundproof member is slidably fixed around the tubular body by a heat shrink film provided on the outer surface of the soundproof member.

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