JPH1194182A - Piping work execution method - Google Patents
Piping work execution methodInfo
- Publication number
- JPH1194182A JPH1194182A JP9257207A JP25720797A JPH1194182A JP H1194182 A JPH1194182 A JP H1194182A JP 9257207 A JP9257207 A JP 9257207A JP 25720797 A JP25720797 A JP 25720797A JP H1194182 A JPH1194182 A JP H1194182A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- tube
- fluid pipe
- fluid
- sheath
- 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
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
-
- 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
-
- 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
- F16L55/04—Devices damping pulsations or vibrations in fluids
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pipe Accessories (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は建屋の給水、給湯配
管に鞘管を用い鞘管内に可撓性の流体管を挿通して配管
する2重配管において、流体管が引っ掛からずに滑らか
に動いて鞘管内に挿入できる配管施工方法に関し、また
水栓の急開閉等で生じるウォーターハンマー現象によっ
て、流体管が振動したり鞘管と衝突して衝撃音が発生す
るのを防止するための管又は棒も鞘管内に引っ掛からず
に滑らかに動いて挿入できる配管施工方法に関するもの
である。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a double pipe in which a flexible fluid pipe is inserted into a sheath pipe by using a sheath pipe for water supply and hot water supply pipes in a building, and the fluid pipe moves smoothly without being caught. The pipe construction method that can be inserted into the sheath pipe, and a pipe for preventing the fluid pipe from vibrating or colliding with the sheath pipe to generate an impact sound due to a water hammer phenomenon caused by sudden opening and closing of the faucet or the like. The present invention relates to a piping construction method in which a rod can be smoothly moved and inserted without being caught in a sheath tube.
【0002】[0002]
【従来の技術】例えば、実開昭62−77384号公報
では、ガス燃料供給用のフレキシブル管に関してである
が、フレキシブル管を鞘管に対して挿入するための引込
み具が開示されている。また本出願人が過去に出願した
特開平6−34090号公報では、ウォーターハンマー
による振動音を消音する構造として、鞘管と流体管との
空間に管又は棒を介在させて鞘管と流体管との衝突音を
消音するものが開示されている。図4に鞘管1内に流体
管2を挿入するときの従来の縦断面図を示す。流体管2
の全長に亘って消音用の管又は棒3を沿わせて、流体管
2の先端近傍においてテープ6を消音用の管又は棒3と
共に巻回して固定している。2. Description of the Related Art For example, Japanese Utility Model Laid-Open Publication No. Sho 62-77384 discloses a retractable device for inserting a flexible tube into a sheath tube, which relates to a flexible tube for supplying gaseous fuel. In Japanese Patent Application Laid-Open No. Hei 6-34090 filed by the present applicant in the past, as a structure for silencing vibration noise caused by a water hammer, a tube or rod is interposed in the space between the sheath tube and the fluid tube to form a sheath tube and a fluid tube. A device that silences a collision sound with is disclosed. FIG. 4 shows a conventional longitudinal sectional view when the fluid pipe 2 is inserted into the sheath pipe 1. Fluid pipe 2
The tape 6 is wound and fixed together with the noise reduction pipe or rod 3 near the distal end of the fluid pipe 2 along the noise reduction pipe or rod 3 over the entire length of the fluid pipe 2.
【0003】[0003]
【発明が解決しようとする課題】ところで、上記従来技
術の構成では、鞘管内に流体管を挿入する際に直角に切
断された流体管先端の角部が鞘管の曲がり部を通過しよ
うとすると鞘管の凹凸のある内面に引っ掛かり、その位
置から奥に押し込められないという問題がある。また斜
め切りした場合すなわち傾斜面が1個の場合でも、鞘管
の2ケ所目の曲がり部で流体管の先端が突っ掛かってし
まう問題がある。仮に流体管を押し込められるとして
も、流体管を少し引き抜いては再度押し込んで挿入させ
るという作業を何度も繰り返さなければならず、作業時
間が掛かり配管施工作業効率を悪くする原因にもなって
いる。By the way, in the above-mentioned prior art configuration, when the fluid pipe is inserted into the sheath pipe, the corner of the tip of the fluid pipe cut at a right angle tries to pass through the bent part of the sheath pipe. There is a problem that the sheath tube is caught on the uneven inner surface and cannot be pushed deep from that position. In addition, even when the sheath is cut obliquely, that is, when there is only one inclined surface, there is a problem that the tip of the fluid pipe collides with the second bent portion of the sheath pipe. Even if the fluid pipe can be pushed in, the work of pulling out the fluid pipe a little and then pushing it in again and inserting it must be repeated many times, which takes time and causes the pipe construction work efficiency to deteriorate .
【0004】さらに消音用の管又は棒を流体管と一緒に
鞘管に挿入させる場合は、流体管のみの場合に比べてよ
り配管施工作業が困難で、消音用の管又は棒は巻き癖な
どにより鞘管内で曲がって縮まろうとするので、管又は
棒の先端が鞘管の凹凸のある内面に引っ掛かってしま
う。このため結局、消音用の管又は棒を全く挿入できな
いか、或いは鞘管の途中までしか消音用の管又は棒を挿
入させることしかできず、ウォーターハンマー現象が生
じた際、流体管が振動して消音用の管又は棒の挿入され
ていない箇所で流体管と鞘管が衝突して騒音を発生させ
てしまうこともある。[0004] Further, when a noise-suppressing pipe or rod is inserted into a sheath pipe together with a fluid pipe, it is more difficult to perform piping work than when only a fluid pipe is used. As a result, the tip of the tube or rod is caught on the uneven inner surface of the sheath tube. As a result, the pipe or rod for noise reduction can not be inserted at all, or the pipe or rod for noise reduction can be inserted only halfway through the sheath tube, and when the water hammer phenomenon occurs, the fluid pipe vibrates. In some cases, the fluid pipe and the sheath pipe may collide with each other at a place where the noise reduction pipe or rod is not inserted, and may generate noise.
【0005】本発明は上記の問題点を解消して、配管作
業が容易で確実に流体管の振動や騒音を防止できる配管
施工方法を提供するものである。The present invention has been made to solve the above-mentioned problems and to provide a piping construction method capable of easily performing piping work and reliably preventing vibration and noise of a fluid pipe.
【0006】[0006]
【課題を解決するための手段】本発明の要旨は、可撓性
を有する鞘管内に湯、水等の液体を通す可撓性の流体管
を挿通して配管する2重配管の配管施工方法であって、
前記流体管の先端に複数個の傾斜面を有する形状として
前記鞘管内に挿通させることを特徴とする配管施工方法
である。また、前記流体管と鞘管との間の空間に、可撓
性を有する管又は棒を介在させ、該管又は棒の先端を折
り返して前記流体管の内部に挿入固定させ、前記流体管
とともに前記鞘管内に挿通させる配管施工方法であって
もよい。SUMMARY OF THE INVENTION The gist of the present invention is to provide a piping method for a double pipe in which a flexible fluid pipe through which a liquid such as hot water or water passes is inserted into a flexible sheath pipe. And
A pipe construction method characterized in that the fluid pipe is inserted into the sheath pipe in a shape having a plurality of inclined surfaces at a tip thereof. Further, in the space between the fluid pipe and the sheath pipe, a flexible pipe or rod is interposed, and the tip of the pipe or rod is folded back and inserted and fixed inside the fluid pipe, and together with the fluid pipe, A piping construction method of inserting the sheath tube into the sheath tube may be used.
【0007】[0007]
【作用】本発明は上記の構成であるから、傾斜面を有す
る流体管が曲がり部分が2ケ所以上ある鞘管の内面に当
接しても滑って引っ掛かることがなく、巻き癖の付いた
流体管を鞘管内に容易に挿通させることが可能となる。
また鞘管に流体管を挿入すると同時に可撓性を有する樹
脂管あるいは樹脂製の棒の先端が折り返されているた
め、これも鞘管の内面に引っ掛かることがなく流体管と
一緒に鞘管内に容易に挿通させることができる。また鞘
管の内面と流体管の外面に可撓性を有する管又は棒が蛇
行して数カ所で当接するので、鞘管内での流体管の動き
が抑制され遊びがなくなり、流体管が振動する現象が防
止される。このためウォーターハンマー現象時の衝撃音
や異常音が防止される。According to the present invention having the above construction, even if the fluid pipe having the inclined surface comes into contact with the inner surface of the sheath pipe having two or more bent portions, the fluid pipe does not slip and catch, and has a curl. Can be easily inserted into the sheath tube.
In addition, since the tip of the flexible resin pipe or resin rod is folded back at the same time as inserting the fluid pipe into the sheath pipe, this also does not get caught on the inner surface of the sheath pipe and is inserted into the sheath pipe together with the fluid pipe. It can be easily inserted. In addition, the flexible pipe or rod meanders between the inner surface of the sheath tube and the outer surface of the fluid tube and abuts at several places, so the movement of the fluid tube in the sheath tube is suppressed, there is no play, and the fluid tube vibrates. Is prevented. For this reason, an impact sound and an abnormal sound at the time of the water hammer phenomenon are prevented.
【0008】[0008]
【発明の実施の形態】以下本発明の実施例について図面
に基づいて説明する。図1は本発明の一実施例を示す配
管の全体図で、室外に固定した給水源のヘッダー4から
室内の各給水器具3へ流体管2を通して直接配管され
る。図2に図1のA−A断面図を示す。流体管2はポリ
ブデンや架橋ポリエチレン等の可撓性を有す樹脂製の管
で、樹脂製の可撓性を有する鞘管1内に配管される。鞘
管1は床下や壁内の適当な個所で動かないように固定し
てあり、鞘管1の内面と流体管2の間に形成される空間
に消音用チューブ5が装着された状態となる。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an overall view of a pipe showing an embodiment of the present invention. The pipe is directly connected from a header 4 of a water supply source fixed outdoors to each water supply device 3 in the room through a fluid pipe 2. FIG. 2 is a sectional view taken along line AA of FIG. The fluid pipe 2 is a flexible resin pipe such as polybutene or cross-linked polyethylene, and is piped into the resin-made flexible sheath pipe 1. The sheath tube 1 is fixed so as not to move at an appropriate place under the floor or in the wall, and the sound deadening tube 5 is mounted in a space formed between the inner surface of the sheath tube 1 and the fluid tube 2. .
【0009】図3に鞘管1内に流体管2を挿入するとき
の本実施例の縦断面図を示す。挿入しようとする流体管
2の先端が鋭角になるように複数個所斜めに切断して、
複数個以上の傾斜面を有する形状とする。本実施例では
2方向から流体管2を斜めに切断して2つの傾斜面を形
成している。このことにより、鞘管1の中に流体管2を
挿入させるときに鞘管1が水平部で90度に曲がった部
分が4ケ所以上あり、かつ立ち上げ部が2ケ所あって
も、流体管2が鞘管1の凹凸のある内面に当接する角部
2aの断面角度が鈍角であるため、鞘管1の凹凸内面を
流体管2の傾斜面が滑っていくため引っ掛かることがな
く、鞘管1内に流体管2を上手く押し込んで挿通させる
ことができる。なお流体管先端に2ケ所ある頂点は管の
中心に向かって曲げておくとさらに挿入作業が容易にな
る。FIG. 3 shows a longitudinal sectional view of the present embodiment when the fluid pipe 2 is inserted into the sheath pipe 1. The fluid pipe 2 to be inserted is cut diagonally at a plurality of positions so that the tip of the
The shape has a plurality of inclined surfaces. In the present embodiment, the fluid pipe 2 is cut obliquely from two directions to form two inclined surfaces. Thus, when the fluid pipe 2 is inserted into the sheath pipe 1, even if the sheath pipe 1 has four or more bent parts at 90 degrees in the horizontal part and two rising parts, Since the cross-sectional angle of the corner 2a of the fluid pipe 2 which is in contact with the uneven inner surface of the sheath tube 1 is obtuse, the inclined surface of the fluid pipe 2 slides on the uneven inner surface of the sheath tube 1 without being caught. The fluid pipe 2 can be pushed into the inside 1 and inserted therethrough. In addition, if the two vertices at the tip of the fluid pipe are bent toward the center of the pipe, the insertion work becomes easier.
【0010】また消音用チューブ5も流体管2と同時に
鞘管2の中に挿入させようとする場合には、消音チュー
ブ5の先端を折り返して流体管2の内部に挿入させ、流
体管2の先端から少し離れた個所をテープ6で巻回して
固定する。このことにより、消音用チューブ5の先端に
小さい曲率半径を有する折り返し部5aを形成すること
になる。したがって、鞘管1内に消音用チューブ5を装
着した流体管2を同時に挿入しようとした場合に、消音
用チューブ5の折り返し部5aが鞘管1の凹凸を有する
内面に当接したとしても、曲率半径を有しているため上
手く滑っていき、消音用チューブ5が引っ掛かることは
ない。尚、消音用チューブ5はポリエチレン、ポリ4フ
ッ化エチレン、ポリアミド、ナイロン等の材質からなる
軟質の樹脂管である。本実施例では鞘管1の内径φ22
内に流体管2としてポリブテン管の外径φ13に消音用
のポリアミドチューブ5外径φ4を1本、図2のごとく
鞘管1とポリブテン管2の空間内に装着される。消音用
チューブ5は断面が弾性的に変形する管状のものが良
く、或いは棒状のものでは内部がスポンジやゴムで充填
され外面が動摩擦係数の低い樹脂を被覆したものでも良
い(図示せず)。In order to insert the silencing tube 5 into the sheath tube 2 at the same time as the fluid tube 2, the end of the silencing tube 5 is folded back and inserted into the fluid tube 2. A portion slightly away from the tip is wound and fixed with tape 6. As a result, a folded portion 5a having a small radius of curvature is formed at the end of the sound deadening tube 5. Therefore, when the fluid pipe 2 equipped with the silencing tube 5 is simultaneously inserted into the sheath tube 1, even if the folded portion 5 a of the silencing tube 5 comes into contact with the uneven inner surface of the sheath tube 1, Since it has a radius of curvature, it slides well and the silencing tube 5 does not get caught. The sound deadening tube 5 is a soft resin tube made of a material such as polyethylene, polytetrafluoroethylene, polyamide, and nylon. In this embodiment, the inner diameter of the sheath tube 1 is φ22.
Inside, a polybutene tube having an outer diameter of φ13 and an outer diameter of φ4 of a polyamide tube 5 for noise reduction are mounted in the space between the sheath tube 1 and the polybutene tube 2 as shown in FIG. The silencing tube 5 may be a tubular one whose section is elastically deformed, or a rod-shaped one whose inside is filled with sponge or rubber and whose outer surface is coated with a resin having a low dynamic friction coefficient (not shown).
【0011】消音チューブ5を入れた場合と入れない場
合で実際にウォーターハンマー現象を生じさせて騒音測
定した。合成樹脂製の鞘管1内径がφ22内に水を通す
流体管2のポリブデン管呼び10Aを水平及び垂直に長
さ約6m配管し、測定点が床高さ1m位置で測定した結
果、暗騒音レベルが42.3dB(Aスケール)におい
て消音チューブを鞘管内に入れない場合は、台所のレバ
ー水栓を急開閉したときの騒音レベル最高値が71.2
dB(A)であった。更に消音用のポリアミドチューブ
外径φ4を1本鞘管内に挿入して同様の条件でウォータ
ーハンマーを生じさせ測定した結果、騒音レベル最高値
が48.8まで下がった。この騒音レベルは暗騒音とほ
ぼ同じレベルで、ウォーターハンマー現象による騒音は
まったく聞き取れなかった。The noise was measured by actually causing the water hammer phenomenon with and without the sound deadening tube 5. A synthetic resin sheath tube 1 having an inner diameter of φ22 and having a polybutene tube nominal 10A of a fluid tube 2 through which water passes through a pipe of about 6 m in length and length and measuring at a position of a floor height of 1 m was measured. When the muffling tube is not put in the sheath tube at the level of 42.3 dB (A scale), the maximum noise level when the kitchen lever faucet is quickly opened and closed is 71.2.
dB (A). Furthermore, the outer diameter φ4 of the silencing polyamide tube was inserted into a single sheath tube, and a water hammer was generated under the same conditions and measured. As a result, the maximum noise level was reduced to 48.8. This noise level was almost the same level as the background noise, and the noise due to the water hammer phenomenon could not be heard at all.
【0012】[0012]
【発明の効果】以上のごとく本発明は、確実に流体管の
振動や鞘管との衝突音を防止する2重配管において、配
管作業が容易で確実で施工性が良い配管施工方法であ
る。As described above, the present invention is a piping construction method in which piping work is easy, reliable, and workability is good in a double piping which reliably prevents vibration of a fluid pipe and a collision sound with a sheath pipe.
【図1】 本発明実施例の全体図を示す概略図である。FIG. 1 is a schematic diagram showing an overall view of an embodiment of the present invention.
【図2】 図1の配管部A−A断面を示す図である。FIG. 2 is a view showing a cross section of a pipe section AA in FIG. 1;
【図3】 鞘管内に流体管を挿入するときの本実施例の
縦断面図を示す。FIG. 3 is a longitudinal sectional view of the present embodiment when a fluid tube is inserted into a sheath tube.
【図4】 鞘管内に流体管を挿入するときの従来の縦断
面図を示す。FIG. 4 shows a conventional longitudinal sectional view when a fluid tube is inserted into a sheath tube.
1:鞘管 2:流体管 2a:角部 3:レバー水栓 4:ヘッダー 5:消音チューブ 5a:折り返し部 6:テープ 1: sheath tube 2: fluid tube 2a: corner portion 3: lever faucet 4: header 5: sound deadening tube 5a: folded portion 6: tape
Claims (2)
を通す可撓性の流体管を挿通して配管する2重配管の配
管施工方法であって、 前記流体管の先端に複数個の傾斜面を有する形状として
前記鞘管内に挿通させることを特徴とする配管施工方
法。1. A double-pipe piping construction method in which a flexible fluid pipe through which a liquid such as hot water or water passes is inserted into a flexible sheath pipe, and the pipe is piped. A piping construction method, wherein the pipe is inserted into the sheath tube as a shape having a plurality of inclined surfaces.
性を有する管又は棒を介在させ、該管又は棒の先端を折
り返して前記流体管の内部に挿入固定させ、前記流体管
とともに前記鞘管内に挿通させることを特徴とする請求
項1記載の配管施工方法。2. A flexible pipe or rod is interposed in the space between the fluid pipe and the sheath pipe, and the tip of the pipe or rod is folded back and inserted and fixed inside the fluid pipe. The piping method according to claim 1, wherein the pipe is inserted into the sheath tube together with the fluid tube.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9257207A JPH1194182A (en) | 1997-09-22 | 1997-09-22 | Piping work execution method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9257207A JPH1194182A (en) | 1997-09-22 | 1997-09-22 | Piping work execution method |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH1194182A true JPH1194182A (en) | 1999-04-09 |
Family
ID=17303160
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9257207A Pending JPH1194182A (en) | 1997-09-22 | 1997-09-22 | Piping work execution method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH1194182A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008180270A (en) * | 2007-01-24 | 2008-08-07 | Yokohama City | Method and device for preventing lead component from being eluted from lead pipe in building site |
-
1997
- 1997-09-22 JP JP9257207A patent/JPH1194182A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008180270A (en) * | 2007-01-24 | 2008-08-07 | Yokohama City | Method and device for preventing lead component from being eluted from lead pipe in building site |
JP4719696B2 (en) * | 2007-01-24 | 2011-07-06 | 横浜市 | Elution prevention method and elution prevention device for lead component in lead pipe in residential area |
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