JP2008297842A - Dust remover for overflow water - Google Patents

Dust remover for overflow water Download PDF

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JP2008297842A
JP2008297842A JP2007147125A JP2007147125A JP2008297842A JP 2008297842 A JP2008297842 A JP 2008297842A JP 2007147125 A JP2007147125 A JP 2007147125A JP 2007147125 A JP2007147125 A JP 2007147125A JP 2008297842 A JP2008297842 A JP 2008297842A
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overflow
cylindrical screen
overflow water
water
turbine
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JP2007147125A
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JP4738382B2 (en
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Keisei Hayashida
恵星 林田
Ichiro Sawada
一郎 沢田
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Hitachi Plant Technologies Ltd
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Hitachi Plant Technologies Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a turbine driving dust remover for overflow water installable even if the distance between the top of an overflow weir and the bottom of a discharge tube is small to be adaptable to the structures of a variety of rainwater discharge chambers. <P>SOLUTION: In this dust remover for overflow water, a cylindrical screen 2 is disposed at the upper side of the overflow weir 1 installed in a flowing water channel, and a rotary brush 3 for removing dust by rotating is disposed in the cylindrical screen 2. The rotary brush 3 is driven by a screw turbine 4 rotated by the hydraulic pressure of the overflow water falling through the cylindrical screen 2. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、越流水の除塵装置に関し、特に、多様な雨水吐き室の構造に適応できるように、越流堰頂と放流管底との距離が小さくても設置が可能な水車駆動型の越流水の除塵装置に関するものである。   The present invention relates to a dust removal device for overflow water, and in particular, a turbine-driven overflow device that can be installed even if the distance between the overflow weir top and the discharge pipe bottom is small so that it can be adapted to various rainwater discharge chamber structures. The present invention relates to a dust removal device for running water.

従来から、雨水吐き室に設置する越流水の除塵装置に、越流水の落差を利用した水車駆動型の装置がある（特許文献１参照）。
この越流水の除塵装置は、流水路に設けた越流堰の上方位置に円筒形スクリーンを配設するとともに、該円筒形スクリーンの内部に、回転することによりごみを除去する回転ブラシを配設するもので、回転ブラシを、円筒形スクリーンを経て流下する越流水の流下水圧にて回転する羽根車の水車にて駆動するようにしている。 Conventionally, as a dust removal device for overflow water installed in a rainwater discharge chamber, there is a water turbine drive type device that uses a head of overflow water (see Patent Document 1).
In this overflow water dust removal device, a cylindrical screen is disposed above the overflow weir provided in the flow channel, and a rotating brush that removes dust by rotating is disposed inside the cylindrical screen. Therefore, the rotating brush is driven by a turbine of an impeller that is rotated by the downflow pressure of the overflow water flowing down through the cylindrical screen.

この越流水の除塵装置は、越流水が有する位置エネルギーを機械的エネルギーに変換し利用するものであり、越流堰には所定の落差が必要である。
したがって、この除塵装置を設置できる場所は、越流堰頂と放流管底との距離（堰高さ）が一定以上離れた場所に限定される。 This overflow water dust remover converts the potential energy of overflow water into mechanical energy and uses it, and the overflow weir requires a predetermined drop.
Therefore, the place where this dust removing device can be installed is limited to a place where the distance (weir height) between the top of the overflow weir and the bottom of the discharge pipe is a certain distance or more.

しかしながら、雨水吐き室の構造は一様でなく、越流堰頂と放流管底との距離が小さい場合は、上記除塵装置を設置できない場合があった。
このようなケースでは、水のエネルギーを利用することができないため、電動式の越流水の除塵装置しか設置することができず、装置本体や電源布設工事に伴う費用の増加、工期の延長、また、環境面でも負荷の高い施設となる。
特開２００４−２７８２００号公報 However, the structure of the rainwater discharge chamber is not uniform, and when the distance between the top of the overflow weir and the bottom of the discharge pipe is small, the dust removal device may not be installed.
In such a case, the energy of water cannot be used, so only the electric overflow water dust remover can be installed, increasing the costs associated with the main body and power installation work, extending the construction period, It will be a facility with high environmental load.
JP 2004-278200 A

本発明は、上記従来の越流水の除塵装置が有する問題に鑑み、多様な雨水吐き室の構造に適応できるように、越流堰頂と放流管底との距離が小さくても設置可能な水車駆動型の越流水の除塵装置を提供することを目的とする。   The present invention is a water turbine that can be installed even if the distance between the overflow weir top and the discharge pipe bottom is small so that it can be applied to various rainwater discharge chamber structures in view of the problems of the conventional overflow water dust removal device. An object of the present invention is to provide a drive type dust removal device for overflow water.

上記目的を達成するため、本発明の越流水の除塵装置は、流水路に設けた越流堰の上方位置に円筒形スクリーンを配設し、該円筒形スクリーンの内部に、回転することによりごみを除去する回転ブラシを配設した越流水の除塵装置において、回転ブラシを、円筒形スクリーンを経て流下する越流水の流下水圧にて回転するスクリュー水車にて駆動するようにしたことを特徴とする。   In order to achieve the above-described object, the overflow water dust removing apparatus of the present invention has a cylindrical screen disposed above the overflow weir provided in the flow channel, and is disposed of by rotating inside the cylindrical screen. In the dust removal apparatus for overflowing water provided with a rotating brush for removing water, the rotating brush is driven by a screw turbine that rotates at the falling water pressure flowing down through the cylindrical screen. .

この場合において、円筒形スクリーンを通過した越流水をスクリュー水車に案内する案内水路を設けることができる。   In this case, a guide water channel that guides the overflow water that has passed through the cylindrical screen to the screw turbine can be provided.

また、スクリュー水車のスクリュー軸を浮力を有する中空の密閉構造となし、該浮力によりスクリュー水車による軸受への荷重を小さくするようにすることができる。   Further, the screw shaft of the screw turbine can be formed into a hollow sealed structure having buoyancy, and the load on the bearing by the screw turbine can be reduced by the buoyancy.

本発明の越流水の除塵装置によれば、流水路に設けた越流堰の上方位置に円筒形スクリーンを配設し、該円筒形スクリーンの内部に、回転することによりごみを除去する回転ブラシを配設した越流水の除塵装置において、回転ブラシを、円筒形スクリーンを経て流下する越流水の流下水圧にて回転するスクリュー水車にて駆動することから、必要となる堰高さが従来の水車より小さなスクリュー水車を駆動源として、従来は設置できなかった越流堰頂と放流管底との距離が小さい雨水吐き室にも、水のエネルギーを利用した水車駆動型の越流水の除塵装置を設置することが可能となり、その結果、イニシャルコストやランニングコストの低減や工期短縮、環境負荷の低減を図ることができる。   According to the dust overflow apparatus for overflow water of the present invention, a rotating brush that disposes dust by rotating a cylindrical screen disposed above the overflow weir provided in the flow channel and rotating inside the cylindrical screen. Since the rotating brush is driven by a screw turbine that rotates with the falling water pressure flowing down through the cylindrical screen, the required weir height is the conventional turbine. Using a smaller screw-turbine as a drive source, a turbine-driven overflow water dust removal device that uses the energy of water is also installed in the rainwater spout chamber where the distance between the overflow dam top and the discharge pipe bottom, which could not be installed in the past, has been reduced. As a result, the initial cost and running cost can be reduced, the work period can be shortened, and the environmental load can be reduced.

この場合、円筒形スクリーンを通過した越流水をスクリュー水車に案内する案内水路を設けることにより、円筒形スクリーンを通過した越流水が効率よくスクリュー水車へ向かうようにすることができる。   In this case, by providing a guide water channel that guides the overflow water that has passed through the cylindrical screen to the screw turbine, the overflow water that has passed through the cylindrical screen can be efficiently directed to the screw turbine.

また、スクリュー水車のスクリュー軸を浮力を有する中空の密閉構造となし、該浮力によりスクリュー水車による軸受への荷重を小さくすることにより、スクリュー水車の回転抵抗を小さくし、越流水の落差が小さくても大きな駆動力を得ることができる。   In addition, the screw shaft of the screw turbine has a hollow sealed structure with buoyancy, and by reducing the load on the bearing by the screw turbine due to the buoyancy, the rotational resistance of the screw turbine is reduced and the head of overflow water is reduced. Can also obtain a large driving force.

以下、本発明の越流水の除塵装置の実施の形態を図面に基づいて説明する。   Hereinafter, embodiments of the dust removal apparatus for overflow water of the present invention will be described with reference to the drawings.

図１〜図２に、本発明の越流水の除塵装置を、合流式下水道の雨水吐き室に適用した実施例を示す。
この越流水の除塵装置は、流水路に設けた越流堰１の上方位置に円筒形スクリーン２を配設し、該円筒形スクリーン２の内部に、回転することによりごみを除去する回転ブラシ３を配設している。
そして、この越流水の除塵装置は、回転ブラシ３を、円筒形スクリーン２を経て流下する越流水の流下水圧にて回転するスクリュー水車４にて駆動するようにしている。 FIGS. 1 to 2 show an embodiment in which the overflow water dust removing device of the present invention is applied to a rainwater discharge chamber of a combined sewer.
In this overflow water dust removing device, a cylindrical screen 2 is disposed above the overflow weir 1 provided in the flow channel, and a rotating brush 3 that removes dust by rotating inside the cylindrical screen 2. Is arranged.
In the dust removal apparatus for overflow water, the rotary brush 3 is driven by a screw turbine 4 that is rotated by the downstream water pressure flowing down through the cylindrical screen 2.

円筒形スクリーン２は、所要の径と長さを有し、主水路側に開口する半円筒状の濾過体からなり、周面はパンチングメタル等の微細目スクリーンで構成されるとともに、両端部は端板により閉塞されている。
この円筒形スクリーン２は、越流雨水幹への落ち口等に越流水を濾過するように配設されており、円筒形スクリーン２の内部に溜まったごみを掻き出す回転ブラシ３を備えている。 The cylindrical screen 2 has a required diameter and length, and is formed of a semi-cylindrical filter body that opens to the main water channel side. The peripheral surface is configured by a fine screen such as punching metal, and both end portions are It is blocked by an end plate.
The cylindrical screen 2 is disposed so as to filter the overflow water at a spillway to the overflow rainwater trunk, and includes a rotating brush 3 that scrapes off dust accumulated inside the cylindrical screen 2.

回転ブラシ３は、ブラシを植設した螺旋状の帯板３１を、軸部３２を中心として円筒形スクリーン２の内部に回転可能に配設したものからなる。
回転ブラシ３は、その軸端とスクリュー水車４の軸端とが減速機等の動力伝達手段５を介して連結されており、スクリュー水車４の回転力が回転ブラシ３に伝達するようになされている。
この回転ブラシ３は、円筒形スクリーン２の内周面に付着したごみを除去するとともに、円筒形スクリーン２の内部に溜まったごみを掻き出すことができる。 The rotating brush 3 is composed of a spiral strip 31 having a brush implanted therein and rotatably disposed inside the cylindrical screen 2 around a shaft portion 32.
The rotary brush 3 has a shaft end connected to a shaft end of the screw turbine 4 via a power transmission means 5 such as a speed reducer, and the rotational force of the screw turbine 4 is transmitted to the rotary brush 3. Yes.
The rotating brush 3 can remove dust adhering to the inner peripheral surface of the cylindrical screen 2 and scrape dust accumulated inside the cylindrical screen 2.

また、スクリュー水車４は、円筒形スクリーン２の後方かつ側方にずれた位置で、スクリュー軸４１を越流水の流れ方向として、Ｕ字状の溝４２に越流水の落下水圧を動力源として回転可能に配設されている。
円筒形スクリーン２の後方には、該円筒形スクリーン２を通過した越流水をスクリュー水車４に案内する案内水路６が設けられており、これにより、越流水が効率よくスクリュー水車４へ向かうようになされている。
また、スクリュー水車４のスクリュー軸４１は浮力を有する中空の密閉構造となっており、その浮力でスクリュー水車４による軸受への荷重を小さくすることにより、スクリュー水車４の回転抵抗を小さくしている。 Further, the screw turbine 4 is rotated at a position shifted rearward and laterally of the cylindrical screen 2 with the screw shaft 41 as the overflow water flow direction and the U-shaped groove 42 using the falling water pressure of the overflow water as a power source. It is arranged to be possible.
Behind the cylindrical screen 2 is provided a guide water channel 6 that guides the overflow water that has passed through the cylindrical screen 2 to the screw turbine 4 so that the overflow water is directed toward the screw turbine 4 efficiently. Has been made.
Further, the screw shaft 41 of the screw turbine 4 has a hollow sealed structure having buoyancy, and the rotational resistance of the screw turbine 4 is reduced by reducing the load applied to the bearing by the screw turbine 4 with the buoyancy. .

かくして、本実施例越流水の除塵装置は、流水路に設けた越流堰１の上方位置に円筒形スクリーン２を配設し、該円筒形スクリーン２の内部に、回転することによりごみを除去する回転ブラシ３を配設した越流水の除塵装置において、回転ブラシ３を、円筒形スクリーン２を経て流下する越流水の流下水圧にて回転するスクリュー水車４にて駆動することから、必要となる堰高さが従来の水車より小さなスクリュー水車４を駆動源として、従来は設置できなかった越流堰頂と放流管底との距離が小さい雨水吐き室にも、水のエネルギーを利用した水車駆動型の越流水の除塵装置を設置することが可能となり、その結果、イニシャルコストやランニングコストの低減や工期短縮、環境負荷の低減を図ることができる。   Thus, in this embodiment, the overflow water dust removing device has the cylindrical screen 2 disposed above the overflow weir 1 provided in the flow channel, and the dust is removed by rotating inside the cylindrical screen 2. This is necessary because the rotating brush 3 is driven by the screw turbine 4 that rotates with the flowing water pressure of the overflow water flowing down through the cylindrical screen 2 in the overflow water dust removing device in which the rotating brush 3 is disposed. Using a water turbine with a screw weir height smaller than that of a conventional turbine, the turbine is driven by water energy in a rainwater spout chamber where the distance between the top of the overflow weir and the bottom of the discharge pipe is small. As a result, it is possible to reduce the initial cost and running cost, shorten the construction period, and reduce the environmental load.

この場合、円筒形スクリーン２を通過した越流水をスクリュー水車４に案内する案内水路６を設けることにより、円筒形スクリーン２を通過した越流水が効率よくスクリュー水車４へ向かうようにすることができる。   In this case, by providing the guide water channel 6 that guides the overflow water that has passed through the cylindrical screen 2 to the screw turbine 4, the overflow water that has passed through the cylindrical screen 2 can be efficiently directed to the screw turbine 4. .

また、スクリュー水車４のスクリュー軸４１を浮力を有する中空の密閉構造となし、該浮力によりスクリュー水車４による軸受への荷重を小さくすることにより、スクリュー水車４の回転抵抗を小さくし、越流水の落差が小さくても大きな駆動力を得ることができる。   Further, the screw shaft 41 of the screw turbine 4 has a hollow sealed structure having buoyancy, and by reducing the load on the bearing by the screw turbine 4 by the buoyancy, the rotational resistance of the screw turbine 4 is reduced, and the overflow water is reduced. Even if the head is small, a large driving force can be obtained.

以上、本発明の越流水の除塵装置について、その実施例に基づいて説明したが、本発明は上記実施例に記載した構成に限定されるものではなく、その趣旨を逸脱しない範囲において適宜その構成を変更することができる。   As mentioned above, although the dust removal apparatus for overflowing water according to the present invention has been described based on the embodiments thereof, the present invention is not limited to the configurations described in the above embodiments, and the configurations thereof are appropriately made without departing from the spirit thereof. Can be changed.

本発明の越流水の除塵装置は、多様な雨水吐き室の構造に適応するように、越流堰頂と放流管底との距離が小さくても設置することができるという特性を有していることから、多種多様な越流堰の除塵装置の用途に広く好適に用いることができる。   The overflow water dust removing apparatus of the present invention has a characteristic that it can be installed even if the distance between the overflow weir top and the discharge pipe bottom is small so as to adapt to various rainwater discharge chamber structures. Therefore, it can be used widely and suitably for various types of dust eliminator for overflow dams.

本発明の越流水の除塵装置の一実施例を示す断面平面図である。It is a cross-sectional top view which shows one Example of the dust removal apparatus of the overflow water of this invention. 同越流水の除塵装置を示す縦断面図である。It is a longitudinal cross-sectional view which shows the dust removal apparatus of the same overflow water.

符号の説明Explanation of symbols

１ 越流堰
２ 円筒形スクリーン
３ 回転ブラシ
３１ 帯板
３２ 軸部
４ スクリュー水車
４１ スクリュー軸
４２ 溝
５ 動力伝達手段
６ 案内水路 DESCRIPTION OF SYMBOLS 1 Overflow weir 2 Cylindrical screen 3 Rotating brush 31 Strip plate 32 Shaft part 4 Screw turbine 41 Screw shaft 42 Groove 5 Power transmission means 6 Guide water channel

Claims (3)

流水路に設けた越流堰の上方位置に円筒形スクリーンを配設し、該円筒形スクリーンの内部に、回転することによりごみ除去する回転ブラシを配設した越流水の除塵装置において、回転ブラシを、円筒形スクリーンを経て流下する越流水の流下水圧にて回転するスクリュー水車にて駆動するようにしたことを特徴とする越流水の除塵装置。   In the overflow water dust removing apparatus, a cylindrical screen is disposed above the overflow weir provided in the flow channel, and a rotating brush that removes dust by rotating is disposed inside the cylindrical screen. Is driven by a screw turbine that rotates with the falling water pressure of the overflow water flowing down through the cylindrical screen. 円筒形スクリーンを通過した越流水をスクリュー水車に案内する案内水路を設けたことを特徴とする請求項１記載の越流水の除塵装置。   The dust removal apparatus for overflow water according to claim 1, further comprising a guide water channel for guiding the overflow water that has passed through the cylindrical screen to the screw turbine. スクリュー水車のスクリュー軸を浮力を有する中空の密閉構造となし、該浮力によりスクリュー水車による軸受への荷重を小さくするようにしたことを特徴とする請求項１又は２記載の越流水の除塵装置。   3. The apparatus for removing dust from overflow water according to claim 1, wherein the screw shaft of the screw turbine has a hollow sealed structure having buoyancy, and the buoyancy reduces a load applied to the bearing by the screw turbine.
JP2007147125A 2007-06-01 2007-06-01 Overflow water dust remover Expired - Fee Related JP4738382B2 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5200210B1 (en) * 2012-05-02 2013-06-05 南進 日向 Drum spiral suspended water wheel with dust remover
CN104099906A (en) * 2014-06-30 2014-10-15 武汉圣禹排水***有限公司 Hydraulic automatic adjustable flip weir

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001214423A (en) * 2000-02-03 2001-08-07 Nagoya City Dust removing device
JP2002320802A (en) * 2001-01-11 2002-11-05 Mono Pumps Ltd Sieving apparatus
JP2004278200A (en) * 2003-03-18 2004-10-07 Hitachi Kiden Kogyo Ltd Dust remover for overflowing rainwater

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001214423A (en) * 2000-02-03 2001-08-07 Nagoya City Dust removing device
JP2002320802A (en) * 2001-01-11 2002-11-05 Mono Pumps Ltd Sieving apparatus
JP2004278200A (en) * 2003-03-18 2004-10-07 Hitachi Kiden Kogyo Ltd Dust remover for overflowing rainwater

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5200210B1 (en) * 2012-05-02 2013-06-05 南進 日向 Drum spiral suspended water wheel with dust remover
CN104099906A (en) * 2014-06-30 2014-10-15 武汉圣禹排水***有限公司 Hydraulic automatic adjustable flip weir
CN104099906B (en) * 2014-06-30 2015-12-30 武汉圣禹排水***有限公司 Hydraulic automatism is adjustable upset weir

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