JPS62266294A - Water hammer wave absorber - Google Patents
Water hammer wave absorberInfo
- Publication number
- JPS62266294A JPS62266294A JP61109080A JP10908086A JPS62266294A JP S62266294 A JPS62266294 A JP S62266294A JP 61109080 A JP61109080 A JP 61109080A JP 10908086 A JP10908086 A JP 10908086A JP S62266294 A JPS62266294 A JP S62266294A
- Authority
- JP
- Japan
- Prior art keywords
- water
- water hammer
- pipe
- hammer wave
- wave
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 51
- 239000006096 absorbing agent Substances 0.000 title claims description 8
- 230000002238 attenuated effect Effects 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 210000004712 air sac Anatomy 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
Landscapes
- Pipe Accessories (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、水道管等において発生する水撃現象を防止す
る水撃波吸収装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a water hammer wave absorbing device for preventing the water hammer phenomenon occurring in water pipes and the like.
従来の技術
従来、水道管等においては、弁の急閉等による水の衝突
によって水撃による圧力波（水撃波）が生じ、この水撃
波が管路内を進行して水道用諸施設や水道用機器を損傷
し、あるいは異音や振動を発生する場合がある。このよ
うな水！現象を防止するための装置としては、管路に分
岐管を形成し、分岐管の先端部に空気室を形成したもの
がある。Conventional technology In the past, in water pipes, etc., pressure waves (water hammer waves) were generated by water hammer due to collision of water due to sudden closing of valves, etc., and this water hammer wave propagated inside the pipes and damaged various water supply facilities. or may damage water supply equipment or generate abnormal noises or vibrations. Water like this! As a device for preventing this phenomenon, there is a device in which a branch pipe is formed in the conduit and an air chamber is formed at the tip of the branch pipe.
発明が解決しようとする問題点
管路に分岐管を形成し、その先端部に空気室を形成した
従来の水撃波吸収装置においては１分岐管及び空気室を
設置するために大きな設置スペースを必要としている。Problems to be Solved by the Invention In the conventional water hammer wave absorbing device in which a branch pipe is formed in the pipe line and an air chamber is formed at the tip thereof, a large installation space is required to install one branch pipe and the air chamber. In need of.
本発明は、このような点に鑑みなされたもので。The present invention was made in view of these points.
大きな設置スペースを必要とすることなく、しかも、簡
単な構造により′水撃現象を防止しうる水撃波吸収装置
を得ることを目的とする。To provide a water hammer wave absorbing device which does not require a large installation space and can prevent water hammer phenomenon with a simple structure.
問題点を解決するための手段
水が流れる管路の途中に大径の拡開部を形成し、弾性部
材内に気体を封入した圧力波エネルギー吸収体を拡開部
内に設ける。Means for Solving the Problems A large-diameter expanded portion is formed in the middle of a pipe through which water flows, and a pressure wave energy absorber in which gas is sealed in an elastic member is provided within the expanded portion.
作用
管路内を進行する水撃波が拡開部に至ると、拡開部の内
径が大きくなっていることと、拡開部内に設けられた圧
力波エネルギー吸収体が水撃波により縮小されることと
によって水撃波が減衰される。When the water hammer wave traveling in the working pipe reaches the expanded part, the inner diameter of the expanded part is large and the pressure wave energy absorber installed inside the expanded part is reduced by the water hammer. The water hammer wave is attenuated by this.
実施例 本発明の一実施例を図面に基づいて説明する。Example An embodiment of the present invention will be described based on the drawings.
一端が高圧の本管（図示せず）に接続された管路１の他
端がビルの屋上等に設置されている水槽２に接続されて
いる。水槽２には水槽２内の水量を設定範囲内に維持す
るための調節装置３が設けられている。One end of the conduit 1 is connected to a high-pressure main pipe (not shown), and the other end is connected to a water tank 2 installed on the roof of a building or the like. The water tank 2 is provided with a regulating device 3 for maintaining the amount of water in the water tank 2 within a set range.
前記管路１の一部には円筒状の中間箱４とこの中間箱４
の両側にガスケット５を介してボルト（図示せず）によ
り締付は固定された一対の横蓋６とからなる拡開部７が
形成され、拡開部７は管路１にそって複数個設けられて
いる。前記拡開部７内には前記管路１と同径の仕切筒８
により仕切られた収納室９が二室形成されており、各収
納室９にはそれぞれ圧力波エネルギー吸収体であるリン
グ状の空気袋１０が収納されている。なお、空気袋１ｏ
は弾性部材により形成されるとともに補足管１１が接続
されており、空気袋１０内には補足管１１から供給され
た空気が封入されている。また、前記仕切筒８には複数
個の連通孔１２が形成され、これらの連通孔１２により
管路１と収納室９とが連通されている。さらに、前記拡
開部７には管路１内に入り込んだ空気を抜くための空気
抜１３が設けられている。A cylindrical intermediate box 4 and a cylindrical intermediate box 4 are provided in a part of the pipe line 1.
A widened part 7 is formed on both sides of the pipe 1 and consists of a pair of side covers 6 which are fastened with bolts (not shown) through a gasket 5. It is provided. Inside the expanded portion 7 is a partition tube 8 having the same diameter as the pipe line 1.
Two storage chambers 9 are formed, each of which is partitioned by a ring-shaped air bag 10, which is a pressure wave energy absorber. In addition, air bag 1o
is formed of an elastic member and is connected to a supplementary tube 11, and air supplied from the supplementary tube 11 is sealed in the air bag 10. Further, a plurality of communication holes 12 are formed in the partition tube 8, and the pipe line 1 and the storage chamber 9 are communicated with each other through these communication holes 12. Further, the expanded portion 7 is provided with an air vent 13 for removing air that has entered the pipe line 1.
このような構成において、水槽２内の水量が設定範囲内
の量よりも少なくなると調節装置３が作動し、管路１を
通して水槽２内に水が供給される。In such a configuration, when the amount of water in the water tank 2 becomes less than the amount within a set range, the regulating device 3 is activated and water is supplied into the water tank 2 through the pipe line 1.
水槽２内の水が設定量に達すると調節装置３が作動して
水槽２内への水の供給が停止される。このとき、管路１
内の水の流れが急に停止されることによる水の衝突によ
って水撃波が生じ、この水撃波は管路１内を水の流れと
反対方向に進行する。When the water in the tank 2 reaches a set amount, the regulating device 3 is activated and the supply of water to the tank 2 is stopped. At this time, pipe line 1
A water hammer wave is generated by the collision of water caused by the sudden stop of the flow of water inside the pipe 1, and this water hammer wave travels inside the pipe 1 in the opposite direction to the flow of water.
管路１内を進行する水撃波が拡開部７に至ると、まず、
拡開部７が管路１より大径であるために水撃波が拡散さ
れ、減衰される。さらに、水撃波により空気袋１０が縮
小されることによって水撃波の圧力波エネルギーが吸収
され、水撃波が減衰される。そして、水撃波が減衰され
ることによって水撃現象が軽減され、管路１の損傷及び
異音や振動の発生が防止される。なお、一つの拡開部７
に二個の空気袋１０が設けられているため、水撃波の圧
力波エネルギーが細分化され、また、一旦縮小した空気
袋１０が拡張する際の反力も細分化されるため、水撃波
の減衰が促進される。さらに、空気袋１０を設けた拡開
部７が管路上にそって複数個設けられており、水撃波は
これらの拡開部７を通過するごとに次第に減衰される。When the water hammer wave traveling inside the pipe 1 reaches the expansion part 7, first,
Since the expanded portion 7 has a larger diameter than the pipe 1, water hammer waves are diffused and attenuated. Furthermore, as the air bladder 10 is contracted by the water hammer wave, the pressure wave energy of the water hammer wave is absorbed, and the water hammer wave is attenuated. By attenuating the water hammer waves, the water hammer phenomenon is reduced, and damage to the pipe line 1 and generation of abnormal noise and vibration are prevented. In addition, one expanded portion 7
Since two air bags 10 are provided in the water hammer wave, the pressure wave energy of the water hammer wave is divided into small parts, and the reaction force when the air bag 10, which has once contracted, is expanded is also divided into small parts, so that the water hammer wave is The attenuation of is promoted. Furthermore, a plurality of expanded portions 7 provided with air bags 10 are provided along the pipe path, and the water hammer wave is gradually attenuated each time it passes through these expanded portions 7.
発明の効果
本発明は、上述のように管路の途中に拡開部を形成し、
拡開部内に圧力波エネルギー吸収体を設けたことにより
、管路内で発生した水撃波が拡開部を通過する際に圧力
波エネルギー吸収体により水撃波の圧力波エネルギーを
吸収して水撃波を減衰させることができ、これによって
水４！！現象を軽減し、管路の損傷及び異音や振動の発
生を防止することができ、また、拡開部の設置を特別な
設置スペースを要することなく簡単に行なうことができ
る等の効果を有する。Effects of the Invention The present invention forms an enlarged part in the middle of the conduit as described above,
By providing a pressure wave energy absorber within the expanded section, when the water hammer waves generated in the pipeline pass through the expanded section, the pressure wave energy absorber absorbs the pressure wave energy of the water hammer wave. It is possible to attenuate the water hammer wave, and this results in Water 4! ! It has the effect of reducing the phenomenon, preventing damage to the pipeline and the occurrence of abnormal noises and vibrations, and making it possible to easily install the expansion section without requiring special installation space. .
図面は本発明の一実施例を示すもので、第１図は拡開部
を拡大して示す縦断正面図、第２図は管路の配管状態を
示す正面図である。
１・・・管路、７・・・拡開部、１０・・・空気袋（圧
力波エネルギー吸収体）The drawings show one embodiment of the present invention, and FIG. 1 is a longitudinal sectional front view showing an enlarged expanded portion, and FIG. 2 is a front view showing the piping state of the pipeline. 1... Pipe line, 7... Expansion part, 10... Air bag (pressure wave energy absorber)
Claims (1)
材内に気体を封入した圧力波エネルギー吸収体を前記拡
開部内に設けたことを特徴とする水撃波吸収装置。A water hammer wave absorbing device characterized in that a large-diameter expanded portion is formed in the middle of a pipe through which water flows, and a pressure wave energy absorber in which gas is sealed in an elastic member is provided within the expanded portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61109080A JPS62266294A (en) | 1986-05-13 | 1986-05-13 | Water hammer wave absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61109080A JPS62266294A (en) | 1986-05-13 | 1986-05-13 | Water hammer wave absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62266294A true JPS62266294A (en) | 1987-11-19 |
Family
ID=14501091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61109080A Pending JPS62266294A (en) | 1986-05-13 | 1986-05-13 | Water hammer wave absorber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62266294A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017071962A (en) * | 2015-10-07 | 2017-04-13 | 大成建設株式会社 | Lift pressure reduction device, lift pressure reduction structure, and installation method of lift pressure reduction device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58217890A (en) * | 1982-06-11 | 1983-12-17 | 株式会社明治ゴム化成 | Pulsation dampening |
-
1986
- 1986-05-13 JP JP61109080A patent/JPS62266294A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58217890A (en) * | 1982-06-11 | 1983-12-17 | 株式会社明治ゴム化成 | Pulsation dampening |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017071962A (en) * | 2015-10-07 | 2017-04-13 | 大成建設株式会社 | Lift pressure reduction device, lift pressure reduction structure, and installation method of lift pressure reduction device |
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