JPS585584A - Dissipative pipe for water supply and drainage - Google Patents

Dissipative pipe for water supply and drainage

Info

Publication number
JPS585584A
JPS585584A JP56163215A JP16321581A JPS585584A JP S585584 A JPS585584 A JP S585584A JP 56163215 A JP56163215 A JP 56163215A JP 16321581 A JP16321581 A JP 16321581A JP S585584 A JPS585584 A JP S585584A
Authority
JP
Japan
Prior art keywords
pipe
drainage
noise
water
sound
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.)
Granted
Application number
JP56163215A
Other languages
Japanese (ja)
Other versions
JPS635638B2 (en
Inventor
勝 佐々木
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kubota Corp
Original Assignee
Kubota Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kubota Corp filed Critical Kubota Corp
Priority to JP56163215A priority Critical patent/JPS585584A/en
Publication of JPS585584A publication Critical patent/JPS585584A/en
Publication of JPS635638B2 publication Critical patent/JPS635638B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Pipe Accessories (AREA)
  • Rigid Pipes And Flexible Pipes (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】 本発明は給、排水パイプ内に発生する共鳴音を抑制して
騒音を防止する消音パイプに関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a noise-muffling pipe that prevents noise by suppressing resonance sounds generated in supply and drainage pipes.

従来、この檎消音バイブとしては、排水パイプなどの外
周壁に防音材を巻き付けて構成したものがあげらnる。
Conventionally, this sound-absorbing vibrator has been constructed by wrapping a sound insulating material around the outer circumferential wall of a drainage pipe or the like.

しかし、かかる従来の構成では、かえってパイプ内の共
鳴音を助長するような結果を招来するだけではなく、パ
イプの袷、排日における騒音を増大して防音を一層困難
にしていた。たとえば高層建築における排水パイプの場
合は長尺物を必要とする関係上、パイプの落差が大きく
、落下する水の衝撃波による衝撃音と、排水中に含まれ
ている大鼠の気泡が潰壊する際に発生するキャビテーシ
ョンによって起こる衝撃音とが、パイプ内で反射共鳴し
て強大な騒音を誘発する。従って、従来の構成の消音パ
イプでは騒音防止の効果を期待できないのが実情であっ
た。
However, such a conventional structure not only results in aggravating the resonance sound within the pipe, but also increases the noise at the pipe lining and when the sun is shining, making soundproofing even more difficult. For example, in the case of drainage pipes in high-rise buildings, long pipes are required, so the drop of the pipe is large, causing impact noise from the shock waves of falling water and the collapse of air bubbles contained in the drainage water. The impact noise caused by the cavitation that occurs during this process resonates within the pipe, causing a huge amount of noise. Therefore, the reality is that the noise-preventing effect cannot be expected with the muffling pipe having the conventional structure.

本発明は上記従来の欠点を解消するためになされたもの
で極めて簡単な構成で、給、排水パイプ内で発生する共
鳴音を抑制して騒音を防止することができる消音パイプ
を提供することを目的とする。
The present invention has been made in order to eliminate the above-mentioned conventional drawbacks, and an object of the present invention is to provide a noise-muffling pipe that has an extremely simple structure and is capable of suppressing resonance sounds generated within supply and drainage pipes and preventing noise. purpose.

すなわち、本発明の給、排水用消音バイブは、パイプの
内壁に長手方向に沿って複数のプレートを立設し、これ
らプレートにより通過する水をパイプの中心部に集め水
柱状に形成させてパイプ内に発生する共鳴音を抑制して
なることを特徴とする。また上記構成のパイプに合成樹
脂製の外管を被覆して構成したことを特徴とする。
That is, the noise damping vibrator for supply and drainage of the present invention has a plurality of plates erected along the longitudinal direction on the inner wall of the pipe, and these plates collect passing water in the center of the pipe to form a water column. It is characterized by suppressing the resonance sound generated inside. The present invention is also characterized in that the pipe having the above structure is covered with an outer tube made of synthetic resin.

以下、本発明の実施例を添附の図面に従って説明する。Embodiments of the present invention will be described below with reference to the accompanying drawings.

第1図は、本発明の一実施例を示す一部切欠き斜視図で
あり、同図中(1)はパイプであり、その内壁には所定
の厚みと幅を菊する二枚のプレー ) (2) (2)
を長手方向に沿って、直径方向に互いに対向するように
立設する。パイプ(1)は合成樹脂製又は金属製であっ
てもよいが、防振合金材、たとえばアルミ/M鉛合金が
好ましい。これら防振合金相を採用すれば、防音効果を
最高度に発揮させることができるだけでなく、キャビテ
ーションによって発生する電蝕を防止することができる
。またプレー) (2) (2)をパイプと一体的に形
成してもよいし、また別部材とし、溶接などにより溶着
させて設けてもよい。さらに第2図に示すように、二個
の半円体(1’) (1’)のそれぞれの一端を所定の
幅で内方にかつ半径方向に折曲しプレー) C2”) 
(!’ )を形成し、これら二個の半円体(1’)(1
’)を接着又は溶着してパイプ(1)を構成してもよい
FIG. 1 is a partially cutaway perspective view showing an embodiment of the present invention. In the figure, (1) is a pipe, and the inner wall thereof has two plates having a predetermined thickness and width. (2) (2)
are erected along the longitudinal direction so as to face each other in the diametrical direction. The pipe (1) may be made of synthetic resin or metal, but is preferably made of an anti-vibration alloy material, such as an aluminum/M-lead alloy. By employing these anti-vibration alloy phases, not only can the soundproofing effect be maximized, but also electrolytic corrosion caused by cavitation can be prevented. (2) (2) may be formed integrally with the pipe, or may be provided as a separate member and welded together by welding or the like. Furthermore, as shown in Fig. 2, one end of each of the two semicircles (1') (1') is bent inwardly and radially to a predetermined width.
(!' ) and these two semicircles (1') (1
') may be adhered or welded to form the pipe (1).

なお、たとえば高層ビルの水洗トイレの排水パイプに使
用する場合はチリ紙痔がプレートに掛止しないように、
第1段目の取り入れ口の部分のパイプは第3図に示すよ
うに取り入れ口に近い部分のプレートの側面視形状を三
角形にするのが好ましい。
For example, when using the drain pipe of a flush toilet in a high-rise building, make sure that dust paper hemorrhoids do not get caught on the plate.
As shown in FIG. 3, it is preferable that the pipe in the first stage intake port has a triangular shape in side view of the plate near the intake port.

次に本発明の作用効果について説明する。Next, the effects of the present invention will be explained.

上記実施例の消音パイプ(1)内に排水すると、水はパ
イプ内壁に設けた二枚のプレー) (2) (2)の働
きによってパイプの中心部に集中する。即ち第7図に示
すように消音パイプ(1)内を通過する水は円運動を起
こして回転しようとするが、プレート(2)(2)によ
って水の回転は阻止される。従ってパイプ(1)内はあ
たかも人、A′のチャンバーに分割された状態となり、
水の流れに対する抵抗(流体抵抗)は、人とA′のチャ
ンバーの接する位1tB内部が小さくなる。又パイプ(
1)内のプレー ) (2)(2)Mが狭くなって、ベ
ンチュリ管を形成するので、水の流れはパイプ(1)の
中心部が最も早くなり圧力が低下する。そのため通過す
る水は吸引されてパイプ(1)の中心部に集中し、水柱
状となってパイプ(1)内を降下し、排水される。
When water is drained into the sound deadening pipe (1) of the above embodiment, the water is concentrated in the center of the pipe by the action of two plates (2) (2) provided on the inner wall of the pipe. That is, as shown in FIG. 7, the water passing through the muffling pipe (1) attempts to rotate in a circular motion, but the rotation of the water is prevented by the plates (2) (2). Therefore, the inside of pipe (1) is divided into chambers for people and A',
The resistance to the flow of water (fluid resistance) decreases by 1 tB inside the chamber A' where the person and the chamber A' come into contact. Also pipe (
1) Play inside ) (2) (2) Since M becomes narrower and forms a Venturi pipe, the flow of water is fastest in the center of the pipe (1) and the pressure decreases. Therefore, the water passing through is sucked and concentrated in the center of the pipe (1), forms a water column, descends inside the pipe (1), and is drained.

その結果、通過する水に気泡の浸入が少なくなり、気泡
の潰壊時に発生するキャビテーションの衝撃波によって
誘発される騒音が防止されるのである。
As a result, less air bubbles enter the passing water, and the noise induced by the cavitation shock waves generated when the air bubbles collapse is prevented.

第3図は一般にパイプ((1)内を音が伝播する状態を
示しており、矢印は音の伝播方向で(イ)から(υに向
って音波が進行するものとする。(ハ)、(ホ)は音波
の節で、(ロ)からに)間が波長に相当する。
Figure 3 generally shows the state in which sound propagates inside a pipe ((1), and the arrow indicates the direction of sound propagation, and it is assumed that the sound wave travels from (A) to (υ). (C). (e) is the node of the sound wave, and the space between (b) and (b) corresponds to the wavelength.

しかるに本発明の上記実施例の消音パイプ(1)は、上
述の如くその内壁に設けたプレー) (2k) (2)
によって、通過する水は水柱状となって排水される。
However, the sound deadening pipe (1) of the above-mentioned embodiment of the present invention has a plate (2k) (2) provided on its inner wall as described above.
As a result, the water passing through is drained in the form of a water column.

したがって音波は水柱状の水に反射され、音波の節は消
失することになる。その結果、音が発生しなくなるので
ある。
Therefore, the sound waves are reflected by the water column, and the nodes of the sound waves disappear. As a result, no sound is produced.

つぎに本発明の上記実施例の消音パイプ(1)と従来の
円形パイプ(8)を排水パイプとして採用した場合に発
生する騒音を比較することにより、本発明の優れた効果
を説明する。第を図は実験装置を示す概略図である。タ
ンク(4)の水(6)を排水コック(6)でもって操作
し、パイプ(1)(8)内に放水する。この時発生する
騒↑!をマイク(9)によって受信し、測定した結果を
第1衰に示す。第2表に示す暗騒音の補正値によって補
正した騒音は、本発明の上!+:!実施例の消音パイプ
(1)の場合は6.2 all  で暗騒音の6ノ(I
B  と同じ大きさであるのに対し、従来のパイプ(8
)の場合は、5f allである。その差はA aB 
 であるから従来のパイプ(8)を採用したときは、本
発明の消音パイプ(1)と比較して音圧が約2倍、強さ
が約715倍の騒音を発生する。これは」二連した如く
、また第2図にも示すように本発明の上記実施例の消音
パイプ(1)内を通過する水(7)は中心部に集中し水
柱状になって降下するのに対して、従来の排水パイプ(
8)の場合は、通過する水(8)はパイプ内で散乱し、
多音の気泡を発生して放ti1され、その結果キャビテ
ーションによる騒音が極めて大きくなるからである。
Next, the excellent effects of the present invention will be explained by comparing the noise generated when the muffling pipe (1) of the above embodiment of the present invention and the conventional circular pipe (8) are employed as a drainage pipe. Figure 5 is a schematic diagram showing the experimental apparatus. The water (6) in the tank (4) is operated by the drain cock (6) and is discharged into the pipes (1) and (8). The noise that occurs at this time↑! is received by the microphone (9), and the measured results are shown in the first attenuation. The noise corrected by the background noise correction values shown in Table 2 is the best according to the present invention! +:! In the case of the muffling pipe (1) of the example, the background noise is 6.2 all (I
B is the same size as the conventional pipe (8
), it is 5f all. The difference is A aB
Therefore, when the conventional pipe (8) is employed, the sound pressure is approximately twice as high and the intensity is approximately 715 times as high as that of the silencing pipe (1) of the present invention. As shown in Fig. 2, the water (7) passing through the muffling pipe (1) of the above embodiment of the present invention concentrates in the center and descends in the form of a water column. In contrast, traditional drainage pipes (
In the case of 8), the passing water (8) is scattered in the pipe,
This is because polyphonic bubbles are generated and emitted, resulting in extremely loud noise due to cavitation.

第1表 注)暗騒音との差が10a、B以下には問題があり、こ
れを第2表の暗騒音補正値により補正した。
Table 1 Note: There is a problem if the difference from the background noise is less than 10a, B, and this was corrected using the background noise correction value in Table 2.

第2表 第7図は、さらに防音効果を高めるために、パイプ(1
)内壁に長手方向に沿って二枚の吸音プレー) (2)
 (2)を直径方向に立設すると共に、このパイプ(1
)に合成樹脂製の外管(101を一体的に被板した消音
パイプを示す一部切欠き斜視図である。
Table 2, Figure 7 shows that pipes (1
) Two sound absorbing plates along the length of the inner wall) (2)
(2) is erected in the diametrical direction, and this pipe (1
) is a partially cutaway perspective view showing a sound deadening pipe in which a synthetic resin outer pipe (101) is integrally covered.

合成樹脂製の外gα0)は射出成形により所望の厚さに
形成したものである。この合成樹脂製の外管α0)をv
F、aNすることにより防音効果を高めるだけでなく、
消音パ・rブ自や1!の重h1′も軽重化できるO 以上詳細に説明したように、本発明によれば、極めてM
却な構成で防音効果が著しく高い袷、排水用消音パイプ
を提供することができる。
The outer gα0) made of synthetic resin is formed to a desired thickness by injection molding. This synthetic resin outer tube α0) is
F, aN not only enhances the soundproofing effect, but also
Silent P/R Bujiya 1! As explained in detail above, according to the present invention, the weight h1' of can be reduced.
It is possible to provide a lining and drainage sound-muffling pipe with a simple structure and extremely high soundproofing effect.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は不発明の一丈捕例を示す一部切欠き斜視図、第
、2図+J他の実ハ゛U例を示す部分斜視図、第3図は
さらに他の実施例を示す一部切欠き斜視図、第グ図は上
記実施例内での水の流れを説明するための断面図、K1
図は一般のパイプ内を音波が伝播する状態を示す断面図
、第を図は上記実施例と従来例において発生する騒音を
比較測定するための丈験装置の概略図、第7図は不発明
のまた他の看施例を示す一部切欠き1F視図である。 (1)・・・パ  イ  プ (2)・・・プ し − ト (8)・・・従来の円形パイプ 00)・・・合成樹脂製の外管 第1図 第2図 特開昭58−5584  (5) −515−
Fig. 1 is a partially cutaway perspective view showing an example of the invention, Figs. A cutaway perspective view, Fig. 1 is a sectional view for explaining the flow of water in the above embodiment, K1
The figure is a cross-sectional view showing how sound waves propagate in a general pipe, the second figure is a schematic diagram of a test device for comparing and measuring the noise generated in the above embodiment and the conventional example, and the seventh figure is a non-inventive one. FIG. 3 is a partially cutaway 1F view showing still another embodiment of the present invention. (1) Pipe (2) Pipe (8) Conventional circular pipe 00) Synthetic resin outer tube Fig. 1 Fig. 2 JP-A-58 -5584 (5) -515-

Claims (1)

【特許請求の範囲】 1)パイプ内壁に長手方向に沿って複数のプレートを立
設してなることを特徴とする給、排水用消音パイプ。 2)バイブ内壁に長平方向に沿って複数のプレートを立
設すると共に、このパイプに合成樹脂製の外管を一体的
に被aBでなることを特徴とする紛、排水用消音パイプ
[Claims] 1) A noise-muffling pipe for supply and drainage, characterized in that a plurality of plates are vertically arranged on the inner wall of the pipe. 2) A noise-reducing pipe for drainage, characterized in that a plurality of plates are erected along the longitudinal direction on the inner wall of the vibrator, and this pipe is integrally covered with an outer pipe made of synthetic resin.
JP56163215A 1981-10-12 1981-10-12 Dissipative pipe for water supply and drainage Granted JPS585584A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56163215A JPS585584A (en) 1981-10-12 1981-10-12 Dissipative pipe for water supply and drainage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56163215A JPS585584A (en) 1981-10-12 1981-10-12 Dissipative pipe for water supply and drainage

Publications (2)

Publication Number Publication Date
JPS585584A true JPS585584A (en) 1983-01-12
JPS635638B2 JPS635638B2 (en) 1988-02-04

Family

ID=15769484

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56163215A Granted JPS585584A (en) 1981-10-12 1981-10-12 Dissipative pipe for water supply and drainage

Country Status (1)

Country Link
JP (1) JPS585584A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007501116A (en) * 2003-08-13 2007-01-25 ダイソン・テクノロジー・リミテッド Cyclone separator
CN116219973A (en) * 2022-12-16 2023-06-06 中国市政工程西南设计研究总院有限公司 Force dissipation water diversion structure suitable for mountain area water delivery engineering

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA3039625A1 (en) 2016-10-07 2018-04-12 Idemitsu Kosan Co., Ltd. Method for culturing spore-forming bacteria, and method for producing useful substance

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007501116A (en) * 2003-08-13 2007-01-25 ダイソン・テクノロジー・リミテッド Cyclone separator
CN116219973A (en) * 2022-12-16 2023-06-06 中国市政工程西南设计研究总院有限公司 Force dissipation water diversion structure suitable for mountain area water delivery engineering
CN116219973B (en) * 2022-12-16 2023-11-24 中国市政工程西南设计研究总院有限公司 Force dissipation water diversion structure suitable for mountain area water delivery engineering

Also Published As

Publication number Publication date
JPS635638B2 (en) 1988-02-04

Similar Documents

Publication Publication Date Title
US5152366A (en) Sound absorbing muffler
US4842097A (en) Sound absorbing structure
KR101016601B1 (en) Ventilation Silencer Using Resonance and Expansion of Sound Wave
JPS585584A (en) Dissipative pipe for water supply and drainage
US2808122A (en) Construction for dampening engine noise
BRPI0709808A2 (en) silencer to attenuate noise
JP2007255098A (en) Sound-absorbing panel and insulation wall
JP2005146650A (en) Sound absorbing structure
JP4553846B2 (en) Silencer for flow path
JPH1137379A (en) Sound absorbing material for piping and soundproof construction for water of hot water feed piping
JP2835014B2 (en) Soundproofing unit
JPS6027877B2 (en) sound deadening pipe
US3473360A (en) Acoustic turbulent water-flow tunnel
RU2026759C1 (en) Device for ultrasonic cleaning (variants)
JP3755442B2 (en) Interkita structure and floor structure
JPH0419385Y2 (en)
JPS643905Y2 (en)
JPH0810655Y2 (en) Engine muffler
SU1127983A1 (en) Gas flow exhaust muffler
RU2140498C1 (en) Device for reduction of energy of acoustic vibration outcoming from solid surface
JP4159267B2 (en) Elevator silencer
SU389230A1 (en) SOUND INSULATION PANEL
JPS5931989Y2 (en) Sound absorbing silencer
KR100879198B1 (en) Bathroom silencer for multi-layer house
JPH08291889A (en) Piping structure