EP0063024A1 - Pipe cleaning device - Google Patents

Pipe cleaning device Download PDF

Info

Publication number
EP0063024A1
EP0063024A1 EP82301816A EP82301816A EP0063024A1 EP 0063024 A1 EP0063024 A1 EP 0063024A1 EP 82301816 A EP82301816 A EP 82301816A EP 82301816 A EP82301816 A EP 82301816A EP 0063024 A1 EP0063024 A1 EP 0063024A1
Authority
EP
European Patent Office
Prior art keywords
discs
support
pipe
disc
periphery
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.)
Withdrawn
Application number
EP82301816A
Other languages
German (de)
English (en)
French (fr)
Inventor
Gary Edward Metropolitan Water Sewerage Kelly
Michael Hedley Metropolitan Water Sewerage Muston
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.)
Metropolitan Water Sewerage & Drainage Board
Original Assignee
Metropolitan Water Sewerage & Drainage Board
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 Metropolitan Water Sewerage & Drainage Board filed Critical Metropolitan Water Sewerage & Drainage Board
Publication of EP0063024A1 publication Critical patent/EP0063024A1/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
    • B08B9/053—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction
    • B08B9/055—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction the cleaning devices conforming to, or being conformable to, substantially the same cross-section of the pipes, e.g. pigs or moles
    • B08B9/0557—Pigs with rings shaped cleaning members, e.g. cup shaped pigs

Definitions

  • This invention concerns a device for scraping the internal surface of fluid conducting pipes.
  • the device will be chiefly described in relation to water pipes made of metal but it will be understood that pipes used in oil and chemical installations may equally be cleaned physically by the device. Concrete pipes may also be treated.
  • Water mains are particularly troublesome in areas where the water contains ferric and ferrous salts in appreciable concentration.
  • the iron content of these salts is sometimes visible in water samples as a flocculated sludge. This. material may adhere to the surface of reticulation pipes and ultimately prevents valves in the pipes from sealing fully.
  • this is removed by subjecting section after section of pipe to a rodding technique or with hydraulic pressure using a dumbell-shaped device with a rigid shaft, pairs of steel discs and rubber washers clamped between the discs.
  • dumbell-shaped device with a rigid shaft, pairs of steel discs and rubber washers clamped between the discs.
  • Such devices proved unreliable in use. They jammed on bends which were not plotted on official records of reticu- .lation layouts or on minor obstructions such as protruding maincocks or stopvalve doors.
  • the whole pipe section had to be drained before rodding began.
  • This invention seeks to provide a device which will negotiate bends and obstacles easily.
  • This invention provides a device for scraping the internal surface of a fluid conducting pipe comprising at least one pair of preferably mutually parallel discs made of resilient material which are a push fit into the pipe, said discs being mutually connected by a resilient support the separation of the discs being such as to permit the device to pass around bends without undue interference between the edges of the disc as the bend is passed.
  • the discs may taper in thickness toward the periphery to assist flexing during their passage.
  • the discs have a single radially directed slit, the whole device flexes better in use (kerfs allow unwanted liquid pressure drop).
  • the slits may be mutually aligned in an axial direction.
  • the slits in successive discs may lie at 90° to each other and this is the preferred arrangement, the reason being that the alternate discs provide baffles to the passage of liquid.
  • the article will be moulded in one piece or as a double article being divided after moulding.
  • the discs are moulded in parallel conformation but this relationship is not critical and the discs may be in planes which are at an angle to each other providing they do. not, interfere with the ability of the device to negotiate bends.
  • the Shore "A" hardness of the rubber may be about 80.
  • the device for a 150 mm. nominal bore main consists of a one piece rubber moulding which. is having having a shaft 2,325 mm. long and/a diameter of 35 mm. There are five integral discs, 4 of 155 mm. diameter. Each disc tapers in thickness from the shaft to the periphery in the manner shown, the thickness A being 10 mm. or less, B being 15 mm. which improves the deformation characteristics. Each disc is spaced from the next by a distance of 80 mm. measured flat face to flat face. Radial slits 6 extend from periphery to shaft in each disc in a north/south direction.
  • the shaft is 230 mm. long with a diameter of 35 mm.
  • Fig..3 discs 4 are not tapered in thickness, instead . they have cruciform ribs 8.
  • a length of multistrand wire cable 10 acts as the shaft and the discs 4 are separated by collars 12. These are all held together by a pair of bronze collars 14,loosely enough to permit flexure.
  • a pipe for example a water main
  • the procedure is as follows. In the street to be cleaned the pipe is cut 3 metres from the valve and also at the dead end or 3 metres from another valve. All house services are isolated and a 750 mm. section of pipe removed.
  • the cleaner is inserted in the pipe, ensuring a firm fit (tapering of the cleaner is required), and the pipe reconnected using gibault couplings.
  • a flexible hose may be connected to the receiving end to avoid property damage from the water.
  • the valve is then opened (about four turns depending on head), and water (and/or air) pushes the cleaner through the pipe. When the cleaner exits from the open end the main is flushed clean, then the pipe is reconnected and chlorinated prior to returning to service.

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning In General (AREA)
EP82301816A 1981-04-08 1982-04-06 Pipe cleaning device Withdrawn EP0063024A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU8362/81 1981-04-08
AU836281 1981-04-08

Publications (1)

Publication Number Publication Date
EP0063024A1 true EP0063024A1 (en) 1982-10-20

Family

ID=3699075

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82301816A Withdrawn EP0063024A1 (en) 1981-04-08 1982-04-06 Pipe cleaning device

Country Status (3)

Country Link
EP (1) EP0063024A1 (ja)
JP (1) JPS5836689A (ja)
AU (1) AU8236782A (ja)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0204418A1 (en) * 1985-05-03 1986-12-10 Kenneth M. Knapp Unitized pig body for paraffin removal
AU703748B1 (en) * 1997-09-12 1999-04-01 Conco Systems, Inc. Easy insert composite tube cleaner
US5996158A (en) * 1998-03-04 1999-12-07 Praxair Technology, Inc. Cleaning module and novel cleaning studs
GB2342971A (en) * 1998-10-22 2000-04-26 Hyperlast Ltd A pipeline pig
US6145150A (en) * 1999-01-05 2000-11-14 Knapp; Kenneth M. Multi-dimensional pig including wiper disk permitting passage through
RU2180613C1 (ru) * 2000-11-20 2002-03-20 Открытое Акционерное Общество Акционерная нефтяная компания "Башнефть" Устройство для очистки труб
EP1907137A4 (en) * 2005-06-30 2009-11-18 Novapharm Res Australia DEVICE FOR CLEANING ENDOSCOPES
US7959740B2 (en) * 2007-02-14 2011-06-14 Tech Group Europe Limited Polisher shuttle, and a method and a polisher device making use thereof
EP1881874A4 (en) * 2005-05-17 2013-02-13 Roderick Francis Galantai CLEANING WASTE FOR ENDOSCOPES
CN114906952A (zh) * 2022-05-21 2022-08-16 深圳市和顺达建筑工程有限公司 河流水质提质增效装置及其使用方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5968603B2 (ja) * 2011-07-29 2016-08-10 有限会社丸甚製作所 管体の内面処理器

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1218005A (en) * 1915-06-19 1917-03-06 George Schlemmer Conduit-cleaning device.
US3619844A (en) * 1970-08-03 1971-11-16 Oil States Rubber Co Disc type pipeline scraper and batch separator
GB1356460A (en) * 1971-12-28 1974-06-12 Ira Stephens Ltd Tube cleaning bullets
US3857132A (en) * 1972-11-24 1974-12-31 K Knapp Pipeline pig operable in two directions
US4178649A (en) * 1978-04-28 1979-12-18 Carrier Corporation Tube cleaning device
US4275457A (en) * 1977-05-18 1981-06-23 Martin Marietta Corporation Apparatus and method for receiving digital data at a first rate and outputting the data at a different rate

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1218005A (en) * 1915-06-19 1917-03-06 George Schlemmer Conduit-cleaning device.
US3619844A (en) * 1970-08-03 1971-11-16 Oil States Rubber Co Disc type pipeline scraper and batch separator
GB1356460A (en) * 1971-12-28 1974-06-12 Ira Stephens Ltd Tube cleaning bullets
US3857132A (en) * 1972-11-24 1974-12-31 K Knapp Pipeline pig operable in two directions
US4275457A (en) * 1977-05-18 1981-06-23 Martin Marietta Corporation Apparatus and method for receiving digital data at a first rate and outputting the data at a different rate
US4178649A (en) * 1978-04-28 1979-12-18 Carrier Corporation Tube cleaning device

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0204418A1 (en) * 1985-05-03 1986-12-10 Kenneth M. Knapp Unitized pig body for paraffin removal
AU703748B1 (en) * 1997-09-12 1999-04-01 Conco Systems, Inc. Easy insert composite tube cleaner
US5996158A (en) * 1998-03-04 1999-12-07 Praxair Technology, Inc. Cleaning module and novel cleaning studs
GB2342971A (en) * 1998-10-22 2000-04-26 Hyperlast Ltd A pipeline pig
GB2342971B (en) * 1998-10-22 2003-04-16 Hyperlast Ltd A pipeline pig
US6145150A (en) * 1999-01-05 2000-11-14 Knapp; Kenneth M. Multi-dimensional pig including wiper disk permitting passage through
RU2180613C1 (ru) * 2000-11-20 2002-03-20 Открытое Акционерное Общество Акционерная нефтяная компания "Башнефть" Устройство для очистки труб
EP1881874A4 (en) * 2005-05-17 2013-02-13 Roderick Francis Galantai CLEANING WASTE FOR ENDOSCOPES
EP1907137A4 (en) * 2005-06-30 2009-11-18 Novapharm Res Australia DEVICE FOR CLEANING ENDOSCOPES
US7959740B2 (en) * 2007-02-14 2011-06-14 Tech Group Europe Limited Polisher shuttle, and a method and a polisher device making use thereof
CN114906952A (zh) * 2022-05-21 2022-08-16 深圳市和顺达建筑工程有限公司 河流水质提质增效装置及其使用方法
CN114906952B (zh) * 2022-05-21 2023-06-13 深圳市和顺达建筑工程有限公司 河流水质提质增效装置及其使用方法

Also Published As

Publication number Publication date
AU8236782A (en) 1982-10-14
JPS5836689A (ja) 1983-03-03

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): DE FR GB IT NL

17P Request for examination filed

Effective date: 19830208

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19850102

RIN1 Information on inventor provided before grant (corrected)

Inventor name: KELLY, GARY EDWARDMETROPOLITAN WATER SEWERAGE

Inventor name: MUSTON, MICHAEL HEDLEYMETROPOLITAN WATER SEWERAGE