JP4106620B2 - In-pipe foreign substance removal device - Google Patents
In-pipe foreign substance removal device Download PDFInfo
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- JP4106620B2 JP4106620B2 JP2003161694A JP2003161694A JP4106620B2 JP 4106620 B2 JP4106620 B2 JP 4106620B2 JP 2003161694 A JP2003161694 A JP 2003161694A JP 2003161694 A JP2003161694 A JP 2003161694A JP 4106620 B2 JP4106620 B2 JP 4106620B2
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- 239000000126 substance Substances 0.000 title claims description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 51
- 238000000926 separation method Methods 0.000 claims description 33
- 239000002184 metal Substances 0.000 claims description 24
- 239000000725 suspension Substances 0.000 claims description 18
- 238000004140 cleaning Methods 0.000 claims description 15
- 238000004080 punching Methods 0.000 claims description 12
- 239000007787 solid Substances 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 238000011001 backwashing Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- 238000005406 washing Methods 0.000 description 5
- 238000001914 filtration Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 4
- 229920002554 vinyl polymer Polymers 0.000 description 4
- 239000000356 contaminant Substances 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
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- 238000011144 upstream manufacturing Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
- B01D29/68—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles
- B01D29/688—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles with backwash arms or shoes acting on the cake side
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/117—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements arranged for outward flow filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
- B01D29/68—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles
- B01D29/682—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles with a rotary movement with respect to the filtering element
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Description
【０００１】
【発明の属する技術分野】
この発明は、上水、工業用水などの配水管に設置し、配水管に流れる懸濁物質を除去する管内異物除去装置の改良に関する。
【０００２】
【従来の技術】
従来の異物除去装置は、配水管に装着したケース内に目開きが０．１ｍｍ程度のフイルタ部材を配設し、流れている砂粒、錆、塗装片などの捕集、フイルタ部材の洗浄を目的としている。たとえば、ケースに配設した円筒形のフイルタ部材の内部に回転自在な吸引管を対設し、開閉弁を介して大気に連通させた懸濁物除去装置は、特許文献１に記載してあるように公知である。
【０００３】
【特許文献１】
特開平１０−１３７５１６号公報（段落番号００２１乃至００３０、図１）
【０００４】
【発明が解決しょうとする課題】
配水管の工事を行う場合、砂粒、錆等の懸濁物質以外にもシールテープやビニールシートあるいはウエス等の工事副資材の小片も混入する可能性がある。これらがストレーナに流入すると、フイルタ部材や洗浄管に絡み付き、ストレーナが機能しなくなる可能性がある。その場合、分解掃除が必要となり、断水により利用者に迷惑をかける恐れがある。このような状況を回避するために、上流側に前置ストレーナを配置することも考えられるが、設置スペースの面から不利である。また、ストレーナの異物排除管が、従来の懸濁物質や異物を下部から引き抜く構造では現地施工が広範囲となる。この発明は、現地施工とメンテナンスが簡単で、前置ストレーナや配管突起のない、設置スペースが小さい管内異物除去装置を提供する。
【０００５】
【課題を解決するための手段】
この発明の要旨は、ケーシングの周壁に流入管と流出管を連結したストレーナを配水管に設置し、ストレーナに配設したフイルタで懸濁物質を分離する異物除去装置において、流入管に対設した流入室と周部に二次フイルタを張設した円筒状の分離室をケーシングに内設し、ケーシングの下半部に配設している流入室とケーシングの上半部に配設している分離室の間に一次フイルタを夾持させ、分離室とケーシングの間に処理水室を形成して、処理水室を流出管に連通させると共に、ストレーナの蓋体から流入室と分離室に垂下させた回転軸に排水路を形成し、回転軸の先端が流入室内で吸込口を形成するように開口し、洗浄時に流入室に沈殿した懸濁物質を吸込口に流入させ、分離室の二次フイルタに回転軸に連結した洗浄管を近接させ、洗浄時に処理水室の処理水の逆洗により、二次フイルタに補足した懸濁物質を洗浄管に流入させ、回転軸に形成した排水路から懸濁物質を排出させるもので、一次および二次フイルタで捕捉した懸濁物質を、集合した１本の回転軸の排水路で外部に排出できる。そして、比重の重い異物や大径の懸濁物質が流入室と一次フイルタで除去されて、微細な懸濁物質だけが分離室に流入するので、二次フイルタの長期間の閉塞が防止できる。懸濁物質を上部から排出することで、ストレーナの底面に配管等の突起物が無く、前置ストレーナも省略できる。また、地中の配水管に設置する場合でも、掘削深さの削減が可能となり、施工性が向上する。
【０００６】
ケーシングに着脱自在に配設した蓋体に流入室と分離室を垂下したもので、流入室と分離室を蓋体と一緒にケーシングへの装着が可能となり、地下の狭い場所での作業でも、装置回りの配管施工が容易となる。また、流入室と分離室を蓋体と一緒にケーシングからの抜出しも可能となり、フイルタの清掃やフイルタの交換も容易となる。ニーズに応じて、孔径の異なるフイルタの交換も可能となるもので、メンテナンスが簡単に行える。懸濁物質の装置外への抜出しが、蓋体に配設した懸濁室に、回転軸に設けた排水路の排出口を開口し、排水弁を有する排出管を懸濁室に連結したもので、排出管の排水弁を開けば、流入室に沈殿した懸濁物質が水圧により排出される。そして、回転軸を回転させれば、二次フイルタに捕捉した懸濁物質が、逆流する処理水質の水と一緒に洗浄管に流入し、二次フイルタの目詰まりを解消できる。
【０００７】
流入室側の一次フイルタに、複数の棒状あるいは板状の突起を設けたもので、ビニールシートやウエス等を突起に阻止させて、大径の夾雑物が一次フイルタに張り付くことがなく、一次フイルタの早期の目詰まりが防止できる。そして、ストレーナに用いるフイルタは、孔径が１０〜２０ｍｍのパンチングメタルで構成した一次フイルタと、孔径が１０〜２５０μのメッシュメタルで構成した二次フイルタを用いたもので、一次フイルタで大径の懸濁物質を捕捉し、微細な懸濁物質だけが分離室に流入するので、二次フイルタが閉塞する危険性は少なくなる。また、流入室の底部の受け皿を漏斗状に形成し、受け皿の傾斜底部の近傍に回転軸の吸込口を開口したもので、配水管の底部に流れてきた濁室は受け皿に溜まり、排水路を大気圧に連通させることにより、沈殿物をストレーナの外部に排出することができる。
【０００８】
【発明の実施の形態】
この発明に係る管内異物除去装置は、上記のように構成してあり、上流側から流れてきた配水管の水は、流入管からストレーナの流入室に流入する。配水管の底部を流れてきた重い懸濁物質は、流入室の漏斗状の受け皿に堆積する。水に浮遊するビニールシート等の夾雑物は一次フイルタの突起に係止され、異物が一次フイルタに張り付くのを妨げて、フイルタ面の目詰まりを防止する。
大径の懸濁物質は孔径の大きい一次フイルタに捕捉され、水に含まれる微細な懸濁物質は処理水室に流入して、孔径の小さい二次フイルタに捕捉される。処理水質に流入した分離水は、流出管から下流側の配水管に移送される。流入室で大径の懸濁物質を取り除くので、目開きの小さな二次フイルタが閉塞する危険性は少なくなる。
【０００９】
ストレーナの排水管に設けた排水弁を開けば、懸濁室が大気圧に開放され、流入室の受け皿に沈殿している懸濁物質が回転軸の排水路から水圧により懸濁室に流入する。同時に回転軸を回転させると、洗浄管が処理水室の二次フイルタのスクリーン面に沿って回転し、処理水室から処理水が逆流する。二次フイルタに付着した懸濁物質は、処理水により剥離され、回転軸の排水路から懸濁室に流入し、排出管からストレーナの外部に排出される。そして、ストレーナの内圧の異常を検知して、あるいは所定期間ごとに、ストレーナのケーシングの上部から蓋体と一緒に流入室と処理水室を抜き出せば、目詰まりした流入室の一次スクリーンと処理水室の二次フイルタの点検と目詰まりの解消が可能であり、スクリーンの交換も簡単に行える。なお、ニーズに応じて孔径の異なるフイルタに交換も可能である。また、配水管にストレーナを設置するときには、ストレーナのケース回りの配管を施工した後に、ケースの上部から蓋体に吊設した流入室と処理水室を装着することができる。ストレーナの底面に配管等の突起物が無く、前置ストレーナも省略できるので施工性が向上する。
【００１０】
【実施例】
この発明の実施例を図面に基づき詳述すると、図１は管内異物除去装置の縦断面図であって、ストレーナ１の円筒状のケーシング２の下半部に流入管３と流出管４が連結してあり、流入管３の流入端部がケーシング２の内部に延設してある。ケーシング２の下半部には、流入管３から水を流入させる円環状の流入室５が配設してあり、流入室５の流入口６がケーシング２の流入管３に対設してある。流入室５の底部は漏斗状に形成して、沈殿物の受け皿７としてあり、配水管８の底部を流れて来た砂粒、錆等の懸濁物質を、流入室５の受け皿７の傾斜底部に堆積させるようにしてある。
【００１１】
図１に示すように、流入室５の上部に比較的孔径の大きい一次フイルタ９が張設してあり、水に浮遊する大径の懸濁物質を一次フイルタ９で捕捉して、粗大化した懸濁物質を受け皿７に沈殿させる。図２は一次フイルタの拡大図であって、この発明の実施例では、一次フイルタ９は孔径が１０〜２０ｍｍのパンチングメタル９ａで構成してある。パンチングメタル９ａに複数の板状の突起１０・・・を流入室５側に設けてあり、工事副資材のシールテープやビニールシートあるいはウエス等の小片を一次フイルタ９から垂下させた突起１０に係止させる。可撓性の夾雑物がパンチングメタル９ａに付着するのを妨げて、フイルタ面の早期の目詰まりを防止する。なお、パンチングメタル９ａに設ける突起１０は、棒状であってもよいものである。
【００１２】
図１に示すように、ケーシング２の上半部に円筒状の分離室１１が配設してあり、周部に孔径の細かい二次フイルタ１２が張設してある。図３はケーシングから流入室と分離室を取出した縦断面図であって、この発明の実施例では、二次フイルタ１２は、孔径が１０〜２５０μのメッシュメタル１２ａで構成してあり、外側に補強材のパンチングメタル２８が張設してある。ろ過目の大きいパンチングメタル９ａで大径の懸濁物質が捕捉され、分離室１１に流入する微細懸濁物質だけをろ過目の小さいメッシュメタル１２ａで分離させるので、メッシュメタル１２ａが閉塞する危険性は少なくなる。図１に示すように、分離室１１とケーシング２の間に処理水室１３が形成してあり、微細な懸濁物質を二次フイルタ１２で分離して、処理水室１３に流入してきた処理水をケーシング２に連結した流出管４から抜出すようにしてある。
【００１３】
図３に示すように、流入室５の上端部と分離室１１の下端部が連結してあり、流入室５の上部に張設した一次フイルタ９のパンチングメタル９ａを夾持してある。ケーシング２の上部に蓋体１５が着脱自在に載置してあり、分離室１１の周部上端部が蓋体１５に止着してある。流入室５と分離室１１が蓋体１５に垂設した構造となっており、流入室５と分離室１１が蓋体１５と一体的にケーシング２に装着し、あるいは抜き出しができるようにしてある。なお、符号１６は、流入室５の周壁上端部に設けたシールリングであって、ケーシング２に装着した時に、ケーシング２の槽底から立設した円筒状の支持板１７に流入室５の周壁上端部を支架させる。
【００１４】
図３に示すように、公知の駆動機（図示せず）に連結した回転軸１８がストレーナ２の蓋体１５に設けた軸受１９に軸支して、分離室１１の中心部に垂下してある。回転軸１８はパンチングメタル９ａを貫通して、流入室５の底部の受け皿７の近傍まで延設してあり、回転軸１８の下端が流入室５の受け皿７に設けた支持台２０に支架してある。流入室５と分離室１１に垂下させた回転軸１８に排水路２１が形成してあり、回転軸１８の下端に排水路２１の吸込口２２が開口してある。分離室１１に張設したメッシュメタル１２ａに近接させた洗浄管２３が、分離室１１に垂下して分岐させた回転軸１８に連結して、洗浄管２３を排水路２１に連通させてある。洗浄管２３はメッシュメタル１２ａの上下面に渡って開口してあり、駆動機を作動して回転軸１８を回転させれば、洗浄管２３がメッシュメタル１２ａのろ過面の全面を移動する。
【００１５】
ストレーナ１の蓋体１５に回転軸１８を囲繞して懸濁室２４が配設してあり、回転軸１８に設けた排水路２１の排出口２５を懸濁室２４に開口してある。懸濁室２４に排水弁２６を設けた排出管２７が連結してあり、排出管２７の後端が大気に開放してある。排出管２７の排水弁２６を開放すれば、懸濁室２４が大気圧となり、流入室５に沈殿した懸濁物質が水圧により回転軸１８の排水路２1に流入し、懸濁室２4から排出される。また、洗浄管２３に対設した処理水室１３の処理水が逆流して、メッシュメタル１２ａに捕捉した懸濁物質とともに洗浄管２３に流入し、懸濁室２４から排出される。そして、回転軸１８を回転させれば、洗浄管２３がろ過面を移動して、メッシュメタル１２ａの目詰まりを解消する。尚、排水管２７にポンプを連結して、水圧低下時においても懸濁物質の排出が可能である。
【００１６】
【発明の効果】
この発明は、上記のように構成してあり、現地施工とメンテナンスが簡単で、設置スペースが小さく前置ストレーナや配管突起のない管内異物除去装置となるものである。即ち、従来装置にあっては、可撓性の夾雑物がストレーナに流入すると、ストレーナが機能しなくなる恐れがあり、上流側に前置ストレーナを配置すると、設置スペースの面から不利である。そして、捕捉した懸濁物質や沈殿物をストレーナの下部から引き抜く構造では、現地施工が広範囲となっていた。この発明にあっては、流入室と周部に二次フイルタを張設した円筒状の分離室の間に一次フイルタを夾持させ、ストレーナの蓋体から垂下させた回転軸に排水路を形成し、流入室の底部近傍の回転軸に吸込口を開口し、分離室の二次フイルタに近接させた洗浄管を回転軸に連結したので、一次および二次フイルタで捕捉した懸濁物質を、集合した１本の排水路から排出できて、ストレーナの底面に配管等の突起物が無く、施工性が向上する。そして、比重の重い異物や大径の懸濁物質が流入室と一次フイルタで除去されて、二次フイルタの長期間の閉塞が防止できる。
【００１７】
流入室と分離室を着脱自在な蓋体に軸支したので、ケーシングへの装着と、ケーシングからの抜出しが可能となり、装置回りの配管の施工とフイルタの清掃やメンテナンスが簡単に行える。また、ストレーナの蓋体に懸濁室を配設し、回転軸の排水路を懸濁室に開口し、排水弁を設けた排出管を懸濁室に連結したので、流入室に沈殿した懸濁物質が水圧により排出され、二次フイルタに捕捉した懸濁物質が逆洗されて二次フイルタの目詰まりを解消することができる。
【００１８】
流入室側の一次フイルタに、複数の棒状あるいは板状の突起を設けたので、大径の夾雑物が一次フイルタに張り付くことがなく、一次フイルタの早期の目詰まりが防止できる。そして、ストレーナに用いるフイルタは、孔径が１０〜２０ｍｍのパンチングメタルで構成した一次フイルタと、孔径が１０〜２５０μのメッシュメタルで構成した二次フイルタを用いたので、一次フイルタで比重の重い大径の懸濁物質を捕捉し、二次フイルタが閉塞する危険性は少なくなる。また、流入室の底部の受け皿を漏斗状に形成し、受け皿の傾斜底部の近傍に回転軸の吸込口を開口したので、受け皿に溜った懸濁物質をストレーナの外部に排出することができる。
【図面の簡単な説明】
【図１】 この発明に係る管内異物除去装置の縦断面図である。
【図２】 同じく、第一フィルタの要部拡大図である。
【図３】 同じく、ケーシングから流入室と分離室を取出した縦断面図である。
【符号の説明】
１ ストレーナ
２ ケーシング
３ 流入管
４ 流出管
５ 流入室
７ 受け皿
８ 配水管
９ 一次フイルタ
９ａ パンチングメタル
１０ 突起
１１ 分離室
１２ 二次フイルタ
１２ａ メッシュメタル
１３ 処理水室
１５ 蓋体
１８ 回転軸
２１ 排水路
２２ 吸込口
２３ 洗浄管
２４ 懸濁室
２５ 排出口
２６ 排水弁
２７ 排出管[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an improvement in a pipe foreign matter removing apparatus that is installed in a water pipe such as tap water or industrial water and removes suspended substances flowing in the water pipe.
[0002]
[Prior art]
The conventional foreign substance removal device has a filter member with a mesh opening of about 0.1 mm in a case attached to a water distribution pipe. The purpose is to collect flowing sand particles, rust, and paint pieces, and to clean the filter member. It is said. For example, Patent Document 1 discloses a suspension removing device in which a rotatable suction pipe is provided inside a cylindrical filter member disposed in a case and communicated with the atmosphere via an on-off valve. As known.
[0003]
[Patent Document 1]
JP-A-10-137516 (paragraph numbers 0021 to 0030, FIG. 1)
[0004]
[Problems to be solved by the invention]
When construction of water distribution pipes is carried out, small pieces of construction sub-materials such as sealing tape, vinyl sheet or waste may be mixed in addition to suspended substances such as sand particles and rust. When these flow into the strainer, they may get entangled with the filter member and the cleaning pipe, and the strainer may not function. In that case, disassembly and cleaning are necessary, and there is a risk of inconvenience to the user due to water outage. In order to avoid such a situation, it is conceivable to arrange a pre-strainer on the upstream side, but it is disadvantageous in terms of installation space. In addition, the construction of the strainer's foreign material exclusion pipe that draws out suspended solids and foreign materials from the lower part of the construction is extensive. The present invention provides an in-pipe foreign matter removing apparatus that is simple in field construction and maintenance, has no pre-strainer or pipe protrusion, and has a small installation space.
[0005]
[Means for Solving the Problems]
The gist of the present invention is that a strainer in which an inflow pipe and an outflow pipe are connected to a peripheral wall of a casing is installed in a water distribution pipe, and a foreign matter removing apparatus that separates suspended solids by a filter disposed in the strainer is provided to face the inflow pipe. A cylindrical separation chamber with a secondary filter stretched around the inflow chamber and the periphery is provided in the casing, and the inflow chamber disposed in the lower half of the casing and the upper half of the casing A primary filter is held between the separation chambers, a treatment water chamber is formed between the separation chamber and the casing, and the treatment water chamber is communicated with the outflow pipe and is suspended from the strainer lid to the inflow chamber and the separation chamber. A drainage channel is formed on the rotating shaft, and the tip of the rotating shaft is opened so as to form a suction port in the inflow chamber. Suspended substances that have settled in the inflow chamber at the time of cleaning are allowed to flow into the suction port. are approximated to washing pipe coupled to the rotating shaft to the next filter, The backwash of the treated water treated water chamber Kiyoshiji, allowed to flow into suspended solids supplemented to the secondary filter in the cleaning tube, intended to discharge the suspended solids from the waste water path formed in the rotary shaft, the primary and secondary Suspended matter captured by the filter can be discharged to the outside through the drainage channel of the single rotating shaft that is gathered. Further, foreign matters having a large specific gravity and large-diameter suspended substances are removed by the inflow chamber and the primary filter, and only fine suspended substances flow into the separation chamber, so that the secondary filter can be prevented from being blocked for a long period of time. By discharging the suspended substance from the upper part, there is no projection such as piping on the bottom surface of the strainer, and the front strainer can be omitted. In addition, even when installed in underground water distribution pipes, the excavation depth can be reduced, and workability is improved.
[0006]
The inflow chamber and separation chamber are suspended from a lid that is detachably mounted on the casing, and the inflow chamber and separation chamber can be attached to the casing together with the lid. Piping around the device is easy. In addition, the inflow chamber and the separation chamber can be removed from the casing together with the lid, and the filter can be easily cleaned and replaced. Depending on the needs, filters with different hole diameters can be exchanged for easy maintenance. Extraction of suspended substances to the outside of the device is achieved by opening the discharge port of the drainage channel provided on the rotating shaft in the suspension chamber arranged on the lid and connecting the discharge pipe with the drain valve to the suspension chamber. Then, if the drain valve of the discharge pipe is opened, the suspended matter precipitated in the inflow chamber is discharged by water pressure. Then, if the rotating shaft is rotated, the suspended substance trapped in the secondary filter flows into the cleaning pipe together with the water of the quality of the treated water flowing back, and the clogging of the secondary filter can be eliminated.
[0007]
The primary filter on the inflow chamber side is provided with a plurality of rod-like or plate-like protrusions, which prevents vinyl sheets, wastes, etc. from being blocked by the protrusions, and prevents large-diameter contaminants from sticking to the primary filter. Early clogging can be prevented. The strainer used is a primary filter made of punching metal having a hole diameter of 10 to 20 mm and a secondary filter made of mesh metal having a hole diameter of 10 to 250 μm. Suspended matter is trapped and only fine suspended matter flows into the separation chamber, reducing the risk of clogging of the secondary filter. In addition, the tray at the bottom of the inflow chamber is formed in a funnel shape, and the suction port of the rotating shaft is opened near the inclined bottom of the tray. The muddy chamber that has flowed to the bottom of the water pipe is collected in the tray, and the drainage channel By allowing the to communicate with the atmospheric pressure, the precipitate can be discharged to the outside of the strainer.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
The in-pipe foreign matter removing apparatus according to the present invention is configured as described above, and the water in the water distribution pipe flowing from the upstream side flows into the inflow chamber of the strainer from the inflow pipe. The heavy suspended material that has flowed through the bottom of the water pipe is deposited on the funnel-shaped saucer in the inflow chamber. Contaminants such as vinyl sheets floating in the water are locked to the protrusions of the primary filter, preventing foreign matter from sticking to the primary filter and preventing the filter surface from being clogged.
Suspended substances having a large diameter are captured by a primary filter having a large pore diameter, and fine suspended substances contained in water flow into the treated water chamber and are captured by a secondary filter having a small pore diameter. The separated water that has flowed into the treated water is transferred from the outflow pipe to the downstream water distribution pipe. Since the large-diameter suspended solid is removed in the inflow chamber, the risk of the secondary filter having a small mesh opening being blocked is reduced.
[0009]
If the drain valve provided on the drain pipe of the strainer is opened, the suspension chamber is opened to the atmospheric pressure, and the suspended matter that has settled in the inflow chamber tray flows into the suspension chamber by water pressure from the drainage channel of the rotating shaft. . When the rotating shaft is rotated at the same time, the cleaning pipe rotates along the screen surface of the secondary filter of the treated water chamber, and the treated water flows backward from the treated water chamber. Suspended matter adhering to the secondary filter is peeled off by the treated water, flows into the suspension chamber from the drainage channel of the rotating shaft, and is discharged out of the strainer through the discharge pipe. Then, if an abnormality in the internal pressure of the strainer is detected or every predetermined period, the inflow chamber and the treatment water chamber are extracted together with the lid from the upper part of the strainer casing, the primary screen of the clogged inflow chamber and the treatment water The secondary filter in the room can be checked and clogged, and the screen can be easily replaced. It is possible to replace the filters with different hole diameters according to needs. Moreover, when installing a strainer in a water distribution pipe, after constructing piping around the case of a strainer, the inflow chamber suspended from the upper part of the case and the treated water chamber can be attached. There is no projection such as piping on the bottom of the strainer, and the pre-strainer can be omitted, so the workability is improved.
[0010]
【Example】
An embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a longitudinal sectional view of an apparatus for removing foreign matter in a pipe, and an inflow pipe 3 and an outflow pipe 4 are connected to a lower half portion of a cylindrical casing 2 of a strainer 1. The inflow end of the inflow pipe 3 extends inside the casing 2. An annular inflow chamber 5 through which water flows in from the inflow pipe 3 is disposed in the lower half of the casing 2, and an inlet 6 of the inflow chamber 5 is provided opposite to the inflow pipe 3 of the casing 2. . The bottom of the inflow chamber 5 is formed in a funnel shape and serves as a sediment tray 7, and suspended substances such as sand particles and rust that have flowed through the bottom of the water distribution pipe 8 are removed from the inclined bottom of the tray 7 of the inflow chamber 5. It is made to deposit on.
[0011]
As shown in FIG. 1, a primary filter 9 having a relatively large pore diameter is stretched over the inflow chamber 5, and a large-diameter suspended substance floating in water is captured by the primary filter 9 to be coarsened. The suspended material is allowed to settle in the receiving pan 7. FIG. 2 is an enlarged view of the primary filter. In the embodiment of the present invention, the primary filter 9 is composed of a punching metal 9a having a hole diameter of 10 to 20 mm. A plurality of plate-
[0012]
As shown in FIG. 1, a cylindrical separation chamber 11 is disposed in the upper half of the casing 2, and a secondary filter 12 having a small hole diameter is stretched around the periphery. FIG. 3 is a longitudinal sectional view of the inflow chamber and the separation chamber taken out from the casing. In the embodiment of the present invention, the secondary filter 12 is composed of a mesh metal 12a having a hole diameter of 10 to 250 μm, A punching
[0013]
As shown in FIG. 3, the upper end portion of the inflow chamber 5 and the lower end portion of the separation chamber 11 are connected to each other, and a punching metal 9 a of the primary filter 9 stretched on the upper portion of the inflow chamber 5 is held. A lid 15 is detachably mounted on the upper part of the casing 2, and the upper end of the peripheral portion of the separation chamber 11 is fixed to the lid 15. The inflow chamber 5 and the separation chamber 11 are suspended from the lid 15, and the inflow chamber 5 and the separation chamber 11 are attached to the casing 2 integrally with the lid 15 or can be extracted. .
[0014]
As shown in FIG. 3, a rotating shaft 18 connected to a known driving machine (not shown) is pivotally supported by a bearing 19 provided on the lid 15 of the strainer 2, and hangs down to the center of the separation chamber 11. is there. The rotating shaft 18 extends through the punching metal 9 a to the vicinity of the tray 7 at the bottom of the inflow chamber 5, and the lower end of the rotating shaft 18 is supported on a support base 20 provided on the tray 7 of the inflow chamber 5. It is. A drainage channel 21 is formed on the rotary shaft 18 suspended from the inflow chamber 5 and the separation chamber 11, and a suction port 22 of the drainage channel 21 is opened at the lower end of the rotary shaft 18. A cleaning pipe 23 close to the mesh metal 12 a stretched in the separation chamber 11 is connected to a rotating shaft 18 that hangs down from the separation chamber 11 and branches, and the cleaning pipe 23 communicates with the drainage channel 21. The cleaning pipe 23 is opened over the upper and lower surfaces of the mesh metal 12a. When the rotating shaft 18 is rotated by operating the driving machine, the cleaning pipe 23 moves over the entire filtration surface of the mesh metal 12a.
[0015]
A suspension chamber 24 is disposed on the lid 15 of the strainer 1 so as to surround the rotation shaft 18, and a discharge port 25 of a drainage channel 21 provided on the rotation shaft 18 is opened to the suspension chamber 24. A discharge pipe 27 provided with a drain valve 26 is connected to the suspension chamber 24, and the rear end of the discharge pipe 27 is open to the atmosphere. If the drain valve 26 of the discharge pipe 27 is opened, the suspension chamber 24 becomes atmospheric pressure, and the suspended matter precipitated in the inflow chamber 5 flows into the drain channel 21 of the rotary shaft 18 by water pressure and is discharged from the suspension chamber 24. Is done. Further, the treated water in the treated water chamber 13 provided in the washing tube 23 flows backward, flows into the washing tube 23 together with the suspended substance captured by the mesh metal 12a, and is discharged from the suspension chamber 24. And if the rotating shaft 18 is rotated, the washing pipe | tube 23 will move a filtration surface, and the clogging of the mesh metal 12a will be eliminated. Note that a suspended pump can be discharged even when the water pressure is lowered by connecting a pump to the drain pipe 27.
[0016]
【The invention's effect】
The present invention is configured as described above, and the construction and maintenance at the site are simple, the installation space is small, and the apparatus for removing foreign matter in a pipe without a pre-strainer or pipe protrusion is provided. That is, in the conventional apparatus, if a flexible foreign substance flows into the strainer, the strainer may not function, and disposing the front strainer on the upstream side is disadvantageous in terms of installation space. And in the structure where the trapped suspended matter and sediment are pulled out from the lower part of the strainer, field construction has been extensive. In this invention, the primary filter is held between the inflow chamber and the cylindrical separation chamber with the secondary filter stretched around the periphery, and a drainage channel is formed on the rotating shaft suspended from the lid of the strainer. Since the suction port is opened in the rotating shaft near the bottom of the inflow chamber, and the washing tube close to the secondary filter in the separation chamber is connected to the rotating shaft, the suspended substances captured by the primary and secondary filters are It can be discharged from a single drainage channel, and there are no protrusions such as piping on the bottom surface of the strainer, improving the workability. Then, foreign matters having a large specific gravity and large-diameter suspended substances are removed by the inflow chamber and the primary filter, and the secondary filter can be prevented from being blocked for a long time.
[0017]
Since the inflow chamber and the separation chamber are pivotally supported by a detachable lid, it can be attached to the casing and removed from the casing, and piping around the device and the cleaning and maintenance of the filter can be easily performed. In addition, a suspension chamber is provided on the strainer lid, the drainage passage of the rotating shaft is opened to the suspension chamber, and a discharge pipe provided with a drain valve is connected to the suspension chamber. Suspended substances are discharged by water pressure, and suspended substances trapped in the secondary filter are back-washed to eliminate clogging of the secondary filter.
[0018]
Since a plurality of rod-like or plate-like protrusions are provided on the primary filter on the inflow chamber side, large-diameter contaminants do not stick to the primary filter, and early clogging of the primary filter can be prevented. And the filter used for a strainer used the primary filter comprised with the punching metal whose hole diameter is 10-20 mm, and the secondary filter comprised with the mesh metal whose hole diameter is 10-250 micrometers, Therefore The large diameter with heavy specific gravity with a primary filter The risk of trapping suspended solids and blocking the secondary filter is reduced. In addition, since the tray at the bottom of the inflow chamber is formed in a funnel shape and the suction port of the rotating shaft is opened near the inclined bottom of the tray, the suspended matter accumulated in the tray can be discharged out of the strainer.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of a pipe foreign matter removing apparatus according to the present invention.
FIG. 2 is similarly an enlarged view of a main part of the first filter.
FIG. 3 is also a longitudinal sectional view in which an inflow chamber and a separation chamber are taken out from the casing.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Strainer 2 Casing 3 Inflow pipe 4 Outflow pipe 5 Inflow chamber 7 Receptacle 8 Water distribution pipe 9 Primary filter
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003161694A JP4106620B2 (en) | 2003-06-06 | 2003-06-06 | In-pipe foreign substance removal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003161694A JP4106620B2 (en) | 2003-06-06 | 2003-06-06 | In-pipe foreign substance removal device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2004358405A JP2004358405A (en) | 2004-12-24 |
| JP4106620B2 true JP4106620B2 (en) | 2008-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2003161694A Expired - Fee Related JP4106620B2 (en) | 2003-06-06 | 2003-06-06 | In-pipe foreign substance removal device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101898072B1 (en) * | 2017-06-28 | 2018-10-31 | 박병근 | Apparatus for filtering water |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007218625A (en) * | 2006-02-14 | 2007-08-30 | Toshiba Corp | Fluid suction device and emergency core cooling device |
| JP5219083B2 (en) * | 2009-01-20 | 2013-06-26 | 鹿島建設株式会社 | Method and apparatus for hydroponic wastewater from genetically modified plants |
| KR101012752B1 (en) * | 2010-06-11 | 2011-02-08 | 주식회사 파나시아 | Filter device for ballast water treatment |
| US8821720B2 (en) | 2010-06-11 | 2014-09-02 | Panasia Co., Ltd. | Filtering apparatus for treating ballast water |
| JP5363429B2 (en) * | 2010-07-09 | 2013-12-11 | 大同工機株式会社 | Bucket type strainer |
| JP2013176722A (en) * | 2012-02-28 | 2013-09-09 | Takeo Yoshida | Filter |
| CN115012472B (en) * | 2022-06-07 | 2023-12-05 | 贵州邦信智慧科技有限公司 | Non-negative pressure secondary water supply equipment |
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2003
- 2003-06-06 JP JP2003161694A patent/JP4106620B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101898072B1 (en) * | 2017-06-28 | 2018-10-31 | 박병근 | Apparatus for filtering water |
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