JP2001090132A - High sound insulation drain pipe structure for fire-proof double pipe - Google Patents
High sound insulation drain pipe structure for fire-proof double pipeInfo
- Publication number
- JP2001090132A JP2001090132A JP26944199A JP26944199A JP2001090132A JP 2001090132 A JP2001090132 A JP 2001090132A JP 26944199 A JP26944199 A JP 26944199A JP 26944199 A JP26944199 A JP 26944199A JP 2001090132 A JP2001090132 A JP 2001090132A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- fire
- layer
- sound insulation
- double
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sink And Installation For Waste Water (AREA)
- Branch Pipes, Bends, And The Like (AREA)
- Pipe Accessories (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、マンション等の集
合住宅で排水に使用する配管において、特に排水時の騒
音を防止するために吸音あるいは遮音対策を講じた耐火
二層管の高遮音排水配管構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high-insulation drain pipe of a fire-resistant double-layer pipe which is provided with sound absorption or sound insulation measures to prevent noise during drainage, especially in a drain used in an apartment house or other apartment house. Regarding the structure.
【０００２】[0002]
【従来の技術】近年、住戸および中高層ビルの店舗並び
に一般住宅（以下、「住戸」という）の排水管として、
塩化ビニル等の合成樹脂管、金属管である鋳鉄管が用い
られている。このうち鋳鉄管は重くて取り扱い作業が困
難であり、また外周に結露する等の不都合があった。一
方、合成樹脂管は、金属管に比べて耐薬品性、耐腐食
性、内面平滑性、施工性に優れた性質を有しているため
に、次第に広く利用されるようになっていった。しかし
ながら、この塩化ビニル等の合成樹脂管は、耐火性に劣
り火災時に容易に延焼してしまい、集合住宅ではこの合
成樹脂管を伝わって、他の区画へ火が燃え移る虞れがあ
り、防災上の問題となっていた。そこで、このような延
焼し易いという欠点をカバーするため、合成樹脂管の外
周を不燃性の材料で被覆した耐火二層管が広く使用され
るようになった。2. Description of the Related Art In recent years, as drainage pipes of dwelling units and stores of middle-high-rise buildings and general houses (hereinafter referred to as "dwelling units"),
Synthetic resin pipes such as vinyl chloride and cast iron pipes as metal pipes are used. Of these, the cast iron tube is heavy and difficult to handle, and has disadvantages such as condensation on the outer periphery. On the other hand, synthetic resin tubes have been gradually and widely used because they have properties that are superior to metal tubes in chemical resistance, corrosion resistance, inner surface smoothness, and workability. However, this synthetic resin pipe such as vinyl chloride is inferior in fire resistance and easily spreads in the event of a fire. In an apartment house, there is a risk that the fire will be transferred to other compartments through this synthetic resin pipe. Had been the problem above. Therefore, in order to cover such a drawback that the fire spreads easily, a fire-resistant two-layer pipe in which the outer periphery of a synthetic resin pipe is covered with a nonflammable material has been widely used.
【０００３】この耐火二層管の外管には、強度および耐
衝撃力を持たせるために、補強用繊維として石綿を含有
した不燃材料が使用された製品もあったが、近年では石
綿の枯渇および人体に対する有害性から石綿に代わる有
機および無機繊維の補強が試みられている。また、外管
には結露防止のための吸放湿性や軽量化および遮音性、
吸音性を向上させるために、外管の原料配合にパーライ
ト等の軽量化材を添加することも行われている。[0003] In some cases, non-combustible materials containing asbestos have been used as reinforcing fibers for the outer tube of this fire-resistant double-layer tube in order to have strength and impact resistance. Attempts have been made to replace organic and inorganic fibers in place of asbestos because of their harm to the human body. In addition, the outer tube has moisture absorption / desorption properties to prevent dew condensation, weight reduction and sound insulation,
In order to improve the sound absorption, a weight-reducing material such as pearlite is also added to the raw material composition of the outer tube.
【０００４】[0004]
【発明が解決しようとする課題】ところで、上記耐火二
層管を住戸の排水管に使用した場合、排水時の騒音を完
全に遮断（防音）できていないのが実情である。集合住
宅では、寝室等の居住場所に隣接するパイプシャフト内
（ＰＳ）の配管の排水音（水の流れる音）により、住
人、階下の居住者から排水騒音によるクレームとなるこ
とが多々発生している。特に夜間の排水騒音が深刻な問
題としてクローズアップされている。この対策として、
集合住宅等の排水管に耐火二層管を使用した場合、施工
現場において、配管付設後に耐火二層管等の外周面に、
グラスウールまたは遮音シート等を巻装して消音を行っ
ていた。また、耐火二層管等の付設前に耐火二層管等の
外周面に上記吸音材・遮音材を工場で巻装してから工事
現場に搬送し、配管付設する方法も実施されていた。However, when the above-mentioned fire-resistant double-layer pipe is used for a drain pipe of a dwelling unit, it is a fact that the noise at the time of drainage cannot be completely shut off (soundproofed). In an apartment house, the drainage sound (water flowing sound) of a pipe in a pipe shaft (PS) adjacent to a living place such as a bedroom often causes complaints from residents and downstairs due to drainage noise. I have. In particular, nighttime drainage noise has been highlighted as a serious problem. As a measure against this,
When a fire-resistant double-layer pipe is used for the drain pipe of an apartment house, etc., at the construction site,
The sound was silenced by wrapping glass wool or a sound insulation sheet. Further, a method has also been practiced in which the above-mentioned sound absorbing material and sound insulating material are wound around the outer peripheral surface of a fire-resistant double-layer pipe or the like at a factory before the fire-resistant double-layer pipe or the like is attached, and then transported to a construction site, and pipes are installed.
【０００５】しかし、現場で付設作業後に吸音材・遮音
材を巻装するのは、配管場所が限られた狭い場所である
ため作業効率が低く、且つ巻装した吸音材・遮音材に損
傷が生じることもあった。また、完全に隙間なく巻装す
るのも困難であった。さらに、留め付け金具が耐火二層
管等の外周面に固着しているため、その部分より固体伝
送音が伝わり騒音となるといった問題もあった。However, since the sound absorbing material and the sound insulating material are wound around the work site after the installation work, the work efficiency is low because the piping space is limited, and the wound sound absorbing material and the sound insulating material are damaged. Sometimes it happened. Also, it was difficult to complete the winding without any gap. Furthermore, since the fastener is fixed to the outer peripheral surface of the fire-resistant double-layer pipe or the like, there is also a problem that the solid transmission sound is transmitted from that portion to generate noise.
【０００６】そこで、本発明の第１の目的は、排水時に
発生する騒音が、直管部分の流水音よりも管継手部に流
水がぶつかり乱流となり、その時に発生する音の方が遙
かに大きな騒音となることに着眼し、管継手部分に防音
加工を施すことにより、耐火二層管の遮音性を向上させ
た耐火二層管の高遮音排水管構造を提供することであ
る。また、本発明の第２の目的は、遮音性は音の透過損
失が質量則によることを利用して、直管部分と管継手部
分での製品の密度差を設けて、耐火二層管の遮音性を向
上させた耐火二層管の高遮音排水管構造を提供すること
である。Therefore, a first object of the present invention is to make the noise generated at the time of drainage turbulent due to the running water colliding with the pipe joint rather than the running water noise at the straight pipe portion, and the sound generated at that time is far less. It is an object of the present invention to provide a high sound insulation drainage pipe structure of a fire-resistant double-layer pipe in which soundproofing is applied to a pipe joint to improve the sound insulation of the fire-resistant double-layer pipe. Further, the second object of the present invention is to provide a sound insulation property based on the fact that sound transmission loss is based on the mass law, to provide a product density difference between a straight pipe part and a pipe joint part, and to provide a fire-resistant double-layer pipe. An object of the present invention is to provide a high sound insulation drainage pipe structure of a fire-resistant double-layer pipe with improved sound insulation.
【０００７】[0007]
【課題を解決するための手段】請求項１記載の発明で
は、合成樹脂製の内管とこの内管の周囲に不燃性の外管
を被覆して構成した耐火二層管の排水管において、この
耐火二層管の排水管が、耐火二層管直管と防音加工を施
した耐火二層管継手とで構成されていることにより、前
記第１の目的を達成する。According to the first aspect of the present invention, there is provided a drain pipe of a fire-resistant double-layer pipe comprising a synthetic resin inner pipe and a nonflammable outer pipe surrounding the inner pipe. The first object is achieved by the fact that the drain pipe of this fire-resistant double-layer pipe is constituted by a fire-resistant double-layer pipe straight pipe and a fire-resistant double-layer pipe joint subjected to soundproofing.
【０００８】請求項２記載の発明では、請求項１に記載
の発明において、前記防音加工を施した耐火二層管継手
が、制振遮音シートを内管の表面、外管の表面の何れか
一方または両方に設けた耐火二層管継手であることによ
り、前記第１の目的を達成する。[0008] In the invention according to claim 2, in the invention according to claim 1, the soundproofed fire-resistant double-layered pipe joint is provided with a vibration-damping and sound-insulating sheet that is one of an inner pipe surface and an outer pipe surface. The first object is achieved by providing a fire-resistant double-layered pipe joint provided on one or both sides.
【０００９】請求項３記載の発明では、請求項１または
請求項２記載の発明において、耐火二層管継手の外管の
嵩比重が１．２以上であることにより、前記第２の目的
を達成する。According to a third aspect of the present invention, in the first or second aspect of the present invention, the second object is achieved by the fact that the bulk specific gravity of the outer pipe of the fire-resistant double-layer pipe joint is 1.2 or more. To achieve.
【００１０】請求項４記載の発明では、請求項１または
請求項２記載の発明において、 前記耐火二層管の直管
の内管が硬質塩化ビニル管のＶＰであることにより、前
記第１の目的を達成する。According to a fourth aspect of the present invention, in the first or second aspect of the present invention, the inner pipe of the straight pipe of the refractory double-layer pipe is a VP of a hard vinyl chloride pipe, whereby the first Achieve the goal.
【００１１】請求項５記載の発明では、請求項４記載の
発明において、前記耐火二層管の直管の外管が嵩比重
１．０以下の繊維補強セメント製であることにより、前
記第１の目的を達成する。According to a fifth aspect of the present invention, in the invention of the fourth aspect, the outer pipe of the straight pipe of the refractory double-layer pipe is made of fiber reinforced cement having a bulk specific gravity of 1.0 or less. Achieve the objectives.
【００１２】請求項６記載の発明では、請求項５記載の
発明において、前記耐火二層管の直管の外管の内周面、
外周面の何れか一方または両方に制振遮音シートを付加
したことにより、前記第１の目的を達成する。In the invention according to claim 6, in the invention according to claim 5, the inner peripheral surface of the outer pipe of the straight pipe of the refractory double-layer pipe,
The first object is achieved by adding a vibration-damping and sound-insulating sheet to one or both of the outer peripheral surfaces.
【００１３】[0013]
【発明の実施の形態】以下、本発明の好適な実施の形態
を図１ないし図７を参照して詳細に説明する。図１は、
本実施の形態に係る耐火二層管の高遮音排水管構造を示
した図である。この耐火二層管の高遮音排水管構造は、
防音付耐火二層管（直管）１ａと耐火二層管管継手１ｄ
より構成されている。防音付耐火二層管（直管）１ａ
は、内管３の外周を繊維強化セメント製の外管２で被覆
して構成されている。この内管３と外管２の間には、直
管用制振遮音シート（１ｍｍ：密度１７００Ｋｇ／
ｍ3 ）４ａが配置されている。また、この直管用制振遮
音シート４ａと外管２の間には、０．５ｍｍの空気層５
が設けられている。一方、２本の防音付耐火二層管（直
管）１ａを、耐火二層管継手１ｄが接続している。その
接続部に吸音・緩衝性を有する１２ｍｍ幅のセラミック
繊維環状目地処理材６の上に遮音テープ７をそれぞれ施
してある。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to FIGS. FIG.
It is the figure which showed the high sound insulation drainage pipe structure of the refractory double layer pipe which relates to this execution form. The high sound insulation drainage pipe structure of this fire-resistant double-layer pipe,
Soundproof fire-resistant double-layer pipe (straight pipe) 1a and fire-resistant double-layer pipe fitting 1d
It is composed of Fireproof double-layer pipe (straight pipe) with soundproofing 1a
Is constituted by covering the outer periphery of an inner tube 3 with an outer tube 2 made of fiber reinforced cement. Between the inner pipe 3 and the outer pipe 2, a vibration damping sheet for straight pipes (1 mm: density 1700 Kg /
m 3 ) 4a are arranged. A 0.5 mm air space 5 is provided between the straight pipe vibration-damping and sound-insulating sheet 4 a and the outer pipe 2.
Is provided. On the other hand, two soundproof fireproof double-layer pipes (straight pipes) 1a are connected to a fireproof double-layer pipe joint 1d. A sound insulating tape 7 is provided on a 12 mm wide ceramic fiber annular joint treatment material 6 having a sound absorbing and cushioning property at the connection portion.
【００１４】外管２は、ＪＩＳ Ａ ５４３０に規定さ
れた性能を有する繊維強化セメント製の管であり、厚さ
約７ｍｍの製品で組成は下記の通りである。 セメント ５０重量％ 有機繊維（パルプ、合成繊維） ８重量％ 無機繊維（ガラス繊維、珪酸質繊維） １２重量％ 混和材（炭カル、スクラップ等） ３０重量％The outer tube 2 is a tube made of fiber reinforced cement having the performance specified in JIS A 5430, and is a product having a thickness of about 7 mm and the composition is as follows. Cement 50% by weight Organic fiber (pulp, synthetic fiber) 8% by weight Inorganic fiber (glass fiber, siliceous fiber) 12% by weight Admixture (charcoal, scrap, etc.) 30% by weight
【００１５】また、内管３は、塩ビ管であり、ＪＩＳ
Ｋ ６７３９に規定された性能を有する硬質塩化ビニル
管のＶＰの呼び径７５の物を用いている。管継手（耐火
二層管管継手）１ｄの外管は、ＪＩＳ Ａ ５４３０に
規定された性能を有する繊維強化セメント製の管継手の
外管であり、材質は上記直管と同じである。一方、内管
は、ＪＩＳ Ｋ ６７４１ 排水用硬質塩化ビニル管継
手の呼び径７５の製品である。The inner tube 3 is a PVC tube, and is JIS
A VP having a nominal diameter of 75 of a rigid vinyl chloride tube having the performance specified in K6739 is used. The outer pipe of the pipe fitting (fire-resistant double-layer pipe fitting) 1d is a fiber-reinforced cement pipe having the performance specified in JIS A 5430, and the material is the same as the straight pipe. On the other hand, the inner pipe is a product of JIS K 6741, a rigid polyvinyl chloride pipe joint for drainage with a nominal diameter of 75.
【００１６】セラミック繊維環状目地処理材６は、吸音
・緩衝性環状目地処理材（浅野ワンタッチメジ：セラミ
ック繊維系・２５０Ｋｇ／ｍ3 ）である。この構造体
は、直管部分を防音処理することによって、内管３内の
流水による騒音を低減させることを目的とした配管構造
であるが、図６の表に示すように耐火二層管の防音効果
とほぼ同じ効果であった。The ceramic fiber annular joint treatment material 6 is a sound absorbing / buffering annular joint treatment material (Asano one-touch media: ceramic fiber-based, 250 kg / m 3 ). This structure is a piping structure for the purpose of reducing the noise due to flowing water in the inner pipe 3 by soundproofing the straight pipe portion. As shown in the table of FIG. The effect was almost the same as the soundproofing effect.
【００１７】図２は、第２の実施の形態に係る耐火二層
管の直管と、外管の繊維強化セメント製管の内周面に制
振遮音シートを装着させた耐火管継手を接続した例を示
してしる。この構造体は、内管（塩ビ管）３と、その周
囲に０．５ｍｍの空気層５と制振遮音シート（１ｍｍ：
密度１７００Ｋｇ／ｍ3 ）４ａ付設した繊維強化セメン
ト被覆層２からなる防音付耐火二層管の直管１ａと、耐
火二層管の管継手の内管の塩ビ管の外周面に空気層を設
けることなく制振遮音シート（１ｍｍ：密度１７００Ｋ
ｇ／ｍ3 ）４ｂと外管２からなる防音付管継手１ｂとを
接続し、その接続部に吸音・緩衝性を有する１２ｍｍ幅
のセラミック繊維環状目地処理材６の上に遮音テープ７
を施してある。この構造体は、直管部と管継手部分を防
音処理することによって、塩ビ管内の流水による騒音を
低減させているが、図６の表に示すように耐火二層管よ
り▼３ｄＢの防音効果が得られた。FIG. 2 shows a connection between a straight pipe of a fire-resistant double-layer pipe according to a second embodiment and a fire-resistant pipe joint in which a vibration damping and sound-insulating sheet is attached to the inner peripheral surface of a fiber-reinforced cement pipe as an outer pipe. Here is an example. This structure has an inner pipe (PVC pipe) 3, an air layer 5 of 0.5 mm around the inner pipe 3 and a vibration-damping and sound-insulating sheet (1 mm:
Density 1700 Kg / m 3 ) Air layer is provided on the outer peripheral surface of a straight pipe 1 a of a fireproof double-layer pipe with soundproofing made of a fiber-reinforced cement coating layer 2 provided with 4 a and a PVC pipe of an inner pipe of a pipe joint of the fireproof double-layer pipe. Without damping sound insulation sheet (1mm: density 1700K
g / m 3 ) 4b and a soundproof pipe joint 1b composed of the outer tube 2 are connected to each other.
Has been given. This structure reduces noise due to running water in the PVC pipe by soundproofing the straight pipe section and the pipe joint section. However, as shown in the table of FIG. was gotten.
【００１８】図３は、第３の実施の形態に係る耐火二層
管の直管と、外管の繊維強化セメント製管の内周面に制
振遮音シートを装着させた管継手を接続した例を示して
しる。この構造体は、塩ビ管である内管３と０．５ｍｍ
の空気層５と直管用制振遮音シート（１ｍｍ：密度１７
００Ｋｇ／ｍ3 ）４ａを付設した繊維強化セメント被覆
層２からなる防音付耐火二層管（直管）１ａと、耐火二
層管の管継手の内管の塩ビ管の外周面に空気層５を設け
ることなく管継手用制振遮音シート（２．５ｍｍ：密度
３０００Ｋｇ／ｍ3 ）４ｂと外管２からなる防音付管継
手１ｂとを接続し、その接続部に吸音・緩衝性を有する
１２ｍｍ幅のセラミック繊維環状目地処理材６の上に遮
音テープ７を施した構造体である。この構造体は、直管
部と管継手部の制振遮音シートの質量が管継手が直管部
より大きくなるように処理することによって、塩ビ管内
の流水による騒音を低減させることができる。図６の表
に示すように耐火二層管より▼７ｄＢの防音効果が得ら
れた。この例では、制振遮音シートを設けたことと質量
差による相乗効果で、流水による騒音の防止が効果的で
ある。FIG. 3 shows a straight pipe of a fire-resistant double-layer pipe according to a third embodiment and a pipe joint in which a vibration-damping and sound-insulating sheet is attached to the inner peripheral surface of a fiber-reinforced cement pipe as an outer pipe. Here is an example. This structure is 0.5 mm with the inner pipe 3 which is a PVC pipe.
Air layer 5 and vibration-damping and sound-insulating sheet for straight pipe (1 mm: density 17)
00Kg / m 3 ) A soundproof fire-resistant double-layer pipe (straight pipe) 1a comprising a fiber-reinforced cement coating layer 2 provided with 4a, and an air layer 5 on the outer peripheral surface of the PVC pipe of the inner pipe of the pipe joint of the fire-resistant double-layer pipe. Without connecting a vibration damping sound insulating sheet for pipe joints (2.5 mm: density 3000 kg / m 3 ) 4 b and a soundproof pipe joint 1 b composed of an outer pipe 2, and a 12 mm having a sound absorbing / buffering property at the connection portion. This is a structure in which a sound insulating tape 7 is provided on a ceramic fiber annular joint treatment material 6 having a width. This structure can reduce the noise caused by flowing water in the PVC pipe by processing the mass of the vibration damping sound insulation sheet of the straight pipe part and the pipe joint part so that the pipe joint is larger than the straight pipe part. As shown in the table of FIG. 6, a soundproofing effect of 7 dB was obtained from the fire-resistant double-layer pipe. In this example, the prevention of noise due to running water is effective due to the synergistic effect of the provision of the vibration damping and sound insulating sheet and the difference in mass.
【００１９】図４は、第４の実施の形態に係る耐火二層
管の直管と外管の繊維強化セメント製管の内周面に制振
遮音シートを装着させた管継手を接続した実施例を示し
てしる。この構造体は、耐火二層管の直管が塩ビ管の内
管３と０．５ｍｍの空気層５と制振遮音シート（１ｍ
ｍ：密度３０００Ｋｇ／ｍ3 ）４ａを付設した繊維強化
セメント被覆層２からなる防音付耐火二層管の直管１
ａ、耐火二層管の管継手１ｂの内管の塩ビ管の外周面に
空気層を設けることなく制振遮音シート（２．５ｍｍ：
密度３０００Ｋｇ／ｍ3 ）と外管２からなる防音付管継
手１ｂとを接続し、その接続部に吸音・緩衝性を有する
１２ｍｍ幅のセラミック繊維環状目地処理材６の上に遮
音テープ７を施した構造体である。FIG. 4 shows an embodiment in which a pipe joint having a vibration-damping and sound-insulating sheet attached to the inner peripheral surface of a straight pipe of a fire-resistant double-layer pipe and an outer pipe of a fiber-reinforced cement pipe according to a fourth embodiment are connected. Here is an example. In this structure, the straight pipe of the fire-resistant double-layer pipe is an inner pipe 3 of a PVC pipe, an air layer 5 of 0.5 mm, and a vibration damping and sound insulating sheet (1 m).
m: straight pipe 1 of a soundproof fire-resistant double-layer pipe consisting of a fiber-reinforced cement coating layer 2 provided with a density of 3000 kg / m 3 ) 4a
a, a vibration-damping and sound-insulating sheet (2.5 mm: 2 mm) without providing an air layer on the outer peripheral surface of the inner PVC pipe of the pipe joint 1 b of the fire-resistant double-layer pipe.
Density 3000 Kg / m 3 ) and a soundproof pipe joint 1 b composed of the outer pipe 2, and a sound insulating tape 7 is applied to a connection portion of the 12 mm wide ceramic fiber annular joint treatment material 6 having sound absorbing and buffering properties. Structure.
【００２０】この構造体は、直管部と管継手部の制振遮
音シートの質量が直管部＝管継手となるように防音処理
をすることによって、塩ビ管内の流水による騒音を低減
させることを目的とした配管構造であるが、図６の表に
示すように耐火二層管より▼７ｄＢの防音効果が得られ
たが、第３の実施の形態と同じ効果差しかなく直管部に
密度３０００Ｋｇ／ｍ3 の制振遮音シートを施した効果
は見られなかった。上記例の如く、管継手部に防音材を
施した耐火二層管の配管構造が、排水時の騒音防止に効
果があることが判明した。なお、上記例は代表的な事例
を記載したものであり、使用する建物及び部位の防音性
能基準にしたがい、防音材料を使い分けることが可能で
ある。This structure reduces noise caused by running water in the PVC pipe by performing soundproofing processing so that the mass of the vibration damping and sound insulating sheet of the straight pipe part and the pipe joint part becomes the straight pipe part = pipe joint. As shown in the table of FIG. 6, a soundproofing effect of ▼ 7 dB was obtained from the fire-resistant double-layer pipe, but the same effect as in the third embodiment was not applied to the straight pipe part. The effect of applying the vibration damping and sound insulating sheet having a density of 3000 kg / m 3 was not observed. As in the above example, it was found that the pipe structure of the fire-resistant double-layer pipe in which the soundproofing material was applied to the pipe joint portion was effective in preventing noise during drainage. The above example describes a typical case, and it is possible to use different soundproofing materials in accordance with the soundproofing performance standards of the building and the part to be used.
【００２１】図５は、高遮音耐火二層管排水管配管構造
の施工例を示した図である。この施工例は、耐火二層管
の直管１ｃと防音付管継手１ｂの接続部に遮音テープ７
を施した高遮音耐火二層管の事例である。FIG. 5 is a view showing an example of construction of a high sound insulation fireproof double-layer drainage pipe structure. In this construction example, a sound insulating tape 7 is provided at the connection between the straight pipe 1c of the fire-resistant double-layer pipe and the soundproof pipe joint 1b.
This is an example of a high-insulation fire-resistant double-walled pipe that has been applied.
【００２２】次に、本例を従来の例との比較した結果を
以下に示す。 ・比較例１．耐火二層管（耐火パイプ） ・比較例２．耐火二層管「塩ビ管＋紙管（１ｍｍ）＋耐
火性被覆管」を用いて、実施例と比較例との性能を比較
し、その総合評価を図６の表に示した。この比較におい
て、防音性能は、室内に図７に示すような配管設備を用
いて、便器排水量２０ｌを一気に流水させ、その騒音を
精密騒音計（リオンＮＡ−２９）で測定した。評価基準
は、耐火二層管の測定値（ｄＢ Ａ）を基準とし、管継
手に防音材料を施した。それぞれの試験体の測定値の差
を防音効果差として▼表示した。この測定結果より、直
管部の防音対策よりも管継手部の防音対策の方が有効で
あることが判る。また、直管の内管に硬質塩化ビニル管
のＶＰを用いると遮音シートを用いた耐火二層管と同様
の防音効果がある。特に、耐火二層管の直管の塩ビ管を
ＶＰとすれば、ＶＵに対し厚さで約２倍、重量で約１．
９倍となり、直管部分に制振遮音シートを施さなくて
も、流水時の十分な騒音防止効果がある。Next, the result of comparing this example with the conventional example is shown below. Comparative Example 1. Fireproof double-layer pipe (fireproof pipe)-Comparative example 2. Using a refractory two-layer pipe “PVC pipe + paper pipe (1 mm) + refractory cladding pipe”, the performance of the example and the comparative example were compared, and the overall evaluation was shown in the table of FIG. In this comparison, the soundproofing performance was measured by using a plumbing system as shown in FIG. 7 and flushing 20 l of toilet water at a stroke, and measuring the noise with a precision noise meter (Rion NA-29). The evaluation criterion was based on the measured value (dB A) of the refractory double-layer pipe, and a soundproofing material was applied to the pipe joint. The difference between the measured values of the respective test specimens was indicated as ▼ as the soundproofing effect difference. From this measurement result, it can be seen that the soundproofing of the pipe joint is more effective than the soundproofing of the straight pipe. Also, if a rigid vinyl chloride pipe VP is used for the inner pipe of the straight pipe, the same soundproof effect as a fireproof two-layer pipe using a sound insulating sheet is obtained. In particular, if a straight PVC pipe of a refractory double-layer pipe is VP, it is about twice as thick as VU and about 1.
Nine times, sufficient noise prevention effect at the time of running water can be obtained without providing a vibration-damping and sound-insulating sheet on the straight pipe part.
【００２３】[0023]
【発明の効果】請求項１記載の発明では、管継手に防音
加工を施すことにより、効果的に排水時の騒音を防止で
きる。請求項２記載の発明では、前記防音加工を施した
耐火二層管継手が、制振遮音シートを内管の表面、外管
の表面の何れか一方または両方に設けたことにより、よ
り有効に排水時の騒音を防止できる。According to the first aspect of the present invention, noise generated during drainage can be effectively prevented by performing soundproofing on the pipe joint. In the invention according to claim 2, the fireproof double-layer pipe joint subjected to the soundproofing process is more effectively provided by providing the vibration-damping and sound-insulating sheet on one or both of the surface of the inner tube and the surface of the outer tube. Noise during drainage can be prevented.
【００２４】請求項３記載の発明では、耐火二層管継手
の外管の嵩比重が１．２以上であることにより、直管部
分と管継手部分の密度差を設け、質量の差による遮音効
果を奏することができる。そのため、さらに、遮音効果
を高めることができる。請求項４記載の発明では、内管
が硬質塩化ビニル管のＶＰであることにより、遮音効果
を高めることができる。According to the third aspect of the invention, since the bulk specific gravity of the outer pipe of the fire-resistant double-layer pipe joint is 1.2 or more, a density difference between the straight pipe portion and the pipe joint portion is provided, and the sound insulation due to the difference in mass is provided. The effect can be achieved. Therefore, the sound insulation effect can be further enhanced. According to the fourth aspect of the invention, since the inner pipe is a VP of a hard vinyl chloride pipe, the sound insulation effect can be enhanced.
【００２５】請求項５記載の発明では、耐火二層管の直
管の外管が嵩比重１．０以下の繊維補強セメント製であ
ることにより、質量の差による遮音効果および材質自体
の防音性により、排水時の騒音をより確実に防止でき
る。請求項６記載の発明では、耐火二層管の直管の外管
の内周面、外周面の何れか一方または両方に制振遮音シ
ートを付加したことにより、直管部分からの、音漏れも
防止でき、さらに、遮音性を高めることができる。According to the fifth aspect of the present invention, since the outer pipe of the straight pipe of the fire-resistant double-layer pipe is made of fiber reinforced cement having a bulk specific gravity of 1.0 or less, the sound insulation effect due to the difference in mass and the sound insulation property of the material itself are provided. Thereby, noise at the time of drainage can be more reliably prevented. According to the sixth aspect of the present invention, sound leakage from the straight pipe portion is achieved by adding a vibration damping sound insulating sheet to one or both of the inner circumferential surface and the outer circumferential surface of the outer pipe of the straight pipe of the fire-resistant double-layer pipe. Can also be prevented, and the sound insulation can be further improved.
【図１】本実施の形態に係る耐火二層管の高遮音排水管
構造を示した図である。FIG. 1 is a view showing a high sound insulation drainage pipe structure of a fire-resistant double-layer pipe according to the present embodiment.
【図２】第２の実施の形態に係る耐火二層管の直管と、
外管の繊維強化セメント製管の内周面に制振遮音シート
を装着させた耐火管継手を接続した例を示した図であ
る。FIG. 2 is a straight pipe of a refractory double-layer pipe according to a second embodiment;
It is the figure which showed the example which connected the refractory pipe joint which attached the vibration damping sound insulation sheet to the inner peripheral surface of the fiber reinforced cement pipe of the outer pipe.
【図３】第３の実施の形態に係る耐火二層管の直管と、
外管の繊維強化セメント製管の内周面に制振遮音シート
を装着させた耐火管継手を接続した例を示した図であ
る。FIG. 3 is a straight pipe of a refractory double-layer pipe according to a third embodiment;
It is the figure which showed the example which connected the refractory pipe joint which attached the vibration damping sound insulation sheet to the inner peripheral surface of the fiber reinforced cement pipe of the outer pipe.
【図４】第４の実施の形態に係る耐火二層管の直管と、
外管の繊維強化セメント製管の内周面に制振遮音シート
を装着させた耐火管継手を接続した例を示した図であ
る。FIG. 4 is a straight pipe of a refractory double-layer pipe according to a fourth embodiment;
It is the figure which showed the example which connected the refractory pipe joint which attached the vibration damping sound insulation sheet to the inner peripheral surface of the fiber reinforced cement pipe of the outer pipe.
【図５】高遮音耐火二層管排水管配管構造の施工例を示
した図である。FIG. 5 is a diagram showing a construction example of a high sound insulation fireproof double-layer drainage pipe structure.
【図６】本実施の形態と比較例との評価の結果を示した
図である。FIG. 6 is a diagram showing evaluation results of the present embodiment and a comparative example.
【図７】防音性能を試験する装置の概要を示した図であ
る。FIG. 7 is a diagram showing an outline of an apparatus for testing soundproof performance.
１ａ 防音付耐火二層管（直管） １ｂ 防音付耐火二層管（管継手） １ｃ 耐火二層管（直管） １ｄ 耐火二層管（管継手） ２ 外管 ３ 内管（塩ビ管） ４ａ 直管用制振遮音シート ５ 空気層 ６ 吸音・緩衝性環状目地処理材 ７ 遮音テープ 1a Fireproof double layer pipe with soundproofing (straight pipe) 1b Fireproof double layer pipe with soundproofing (pipe fitting) 1c Fireproof double layer pipe (straight pipe) 1d Fireproof double layer pipe (pipe fitting) 2 Outer pipe 3 Inner pipe (PVC pipe) 4a Vibration-damping and sound-insulating sheet for straight pipe 5 Air layer 6 Sound-absorbing / buffering annular joint treatment material 7 Sound-insulating tape
フロントページの続き (72)発明者 石本 貞夫 東京都港区芝大門２丁目12番10号 浅野ス レート株式会社内 (72)発明者 米田 一也 東京都港区芝大門２丁目12番10号 浅野ス レート株式会社内 (72)発明者 久徳 賢彰 東京都港区芝大門２丁目12番10号 浅野ス レート株式会社内 Ｆターム(参考） 2D061 AA04 AB02 AC02 AC10 3H019 EA11 EA20 3H025 CA01 CB05 Continued on the front page (72) Inventor Sadao Ishimoto 2-12-10 Shibadaimon, Minato-ku, Tokyo Inside Asano Slate Co., Ltd. (72) Inventor Kazuya Yoneda 2-12-10 Shibadaimon, Minato-ku, Tokyo Asano Slate Inside (72) Inventor Kensho Kudoku 2-12-10 Shibadaimon, Minato-ku, Tokyo Asano Slate Co., Ltd. F-term (reference) 2D061 AA04 AB02 AC02 AC10 3H019 EA11 EA20 3H025 CA01 CB05
Claims (6)
燃性の外管を被覆して構成した耐火二層管の排水管にお
いて、 この耐火二層管の排水管が、耐火二層管直管と防音加工
を施した耐火二層管継手とで構成されていることを特徴
とする耐火二層管の高遮音排水管構造。1. A drain pipe of a fire-resistant double-layer pipe constituted by covering an inner pipe made of a synthetic resin and a non-flammable outer pipe around the inner pipe, wherein the drain pipe of the fire-resistant double-layer pipe is A highly sound-insulated drainage pipe structure of a fire-resistant double-layer pipe, which is composed of a straight-layer pipe and a fire-resistant double-layer fireproof pipe joint.
が、制振遮音シートを内管の表面、外管の表面の何れか
一方または両方に設けた耐火二層管継手であることを特
徴とする請求項１に記載の耐火二層管の高遮音排水管構
造。2. The fire-resistant double-layer pipe joint which has been subjected to soundproofing processing is a fire-resistant double-layer pipe joint in which a vibration damping and sound insulating sheet is provided on one or both of a surface of an inner pipe and a surface of an outer pipe. The high sound insulation drainage pipe structure of the fireproof double-layer pipe according to claim 1, characterized in that:
以上であることを特徴とする請求項１または請求項２記
載の耐火二層管の高遮音排水管構造。3. The outer pipe of the fire-resistant double-layer pipe joint has a bulk specific gravity of 1.2.
The high sound insulation drainage pipe structure of the fireproof double-layer pipe according to claim 1 or 2, wherein:
ビニル管のＶＰであることを特徴とする請求項１、請求
項２または請求項３記載の耐火二層管の高遮音排水配管
構造。4. The high sound insulation of a fire-resistant double-layer pipe according to claim 1, wherein the inner pipe of the straight pipe of the fire-resistant double-layer pipe is a VP of a hard vinyl chloride pipe. Drainage piping structure.
１．０以下の繊維補強セメント製であることを特徴とす
る請求項４記載の耐火二層管の高遮音排水配管構造。5. The high sound insulation drainage pipe structure for a fire-resistant double-layer pipe according to claim 4, wherein the outer pipe of the straight pipe of the fire-resistant double-layer pipe is made of fiber reinforced cement having a bulk specific gravity of 1.0 or less. .
外周面の何れか一方または両方に制振遮音シートを付加
したことを特徴とする請求項５記載の耐火二層管の高遮
音排水配管構造。6. An inner peripheral surface of an outer pipe of the straight pipe of the refractory double-layer pipe,
The high sound insulation drainage pipe structure for a fireproof double-layer pipe according to claim 5, wherein a vibration damping sound insulation sheet is added to one or both of the outer peripheral surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26944199A JP2001090132A (en) | 1999-09-22 | 1999-09-22 | High sound insulation drain pipe structure for fire-proof double pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26944199A JP2001090132A (en) | 1999-09-22 | 1999-09-22 | High sound insulation drain pipe structure for fire-proof double pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001090132A true JP2001090132A (en) | 2001-04-03 |
Family
ID=17472487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26944199A Pending JP2001090132A (en) | 1999-09-22 | 1999-09-22 | High sound insulation drain pipe structure for fire-proof double pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001090132A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10349495A1 (en) * | 2003-09-02 | 2005-03-31 | Aco Severin Ahlmann Gmbh & Co. Kg | Mounting set for the installation of a floor drain in a ceiling |
| JP2007078162A (en) * | 2005-09-16 | 2007-03-29 | Inaba Denki Sangyo Co Ltd | Fireproof and soundproof rolling tool |
| JP2007078164A (en) * | 2005-09-16 | 2007-03-29 | Inaba Denki Sangyo Co Ltd | Fireproof and soundproof cover tool |
-
1999
- 1999-09-22 JP JP26944199A patent/JP2001090132A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10349495A1 (en) * | 2003-09-02 | 2005-03-31 | Aco Severin Ahlmann Gmbh & Co. Kg | Mounting set for the installation of a floor drain in a ceiling |
| JP2007078162A (en) * | 2005-09-16 | 2007-03-29 | Inaba Denki Sangyo Co Ltd | Fireproof and soundproof rolling tool |
| JP2007078164A (en) * | 2005-09-16 | 2007-03-29 | Inaba Denki Sangyo Co Ltd | Fireproof and soundproof cover tool |
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