EP1529889A1 - Reinigungsmethode einer Kanalisation - Google Patents

Reinigungsmethode einer Kanalisation Download PDF

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Publication number
EP1529889A1
EP1529889A1 EP04292393A EP04292393A EP1529889A1 EP 1529889 A1 EP1529889 A1 EP 1529889A1 EP 04292393 A EP04292393 A EP 04292393A EP 04292393 A EP04292393 A EP 04292393A EP 1529889 A1 EP1529889 A1 EP 1529889A1
Authority
EP
European Patent Office
Prior art keywords
pump
volume
pipe
motor
seconds
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
EP04292393A
Other languages
English (en)
French (fr)
Other versions
EP1529889B1 (de
Inventor
Jacques Berthon
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.)
KSB SAS
Original Assignee
KSB SAS
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 KSB SAS filed Critical KSB SAS
Publication of EP1529889A1 publication Critical patent/EP1529889A1/de
Application granted granted Critical
Publication of EP1529889B1 publication Critical patent/EP1529889B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
    • B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F9/00—Arrangements or fixed installations methods or devices for cleaning or clearing sewer pipes, e.g. by flushing

Definitions

  • Sewer discharges are not clear waters but waters charged with various particles of variable size (of faecal origin, detergents, greasy etc .).
  • the flow is gravitarily from the source of effluent at the treatment plant by collectors installed with a slope predefined during civil engineering.
  • the water velocity is maintained higher than 0.6 m / sec by calculating the flow of the lifting pumps taking into account the various pressure drops and the diameter of the pipeline connecting the station to the general collector. In this case, when the lift pumps are operating, the water velocity is sufficient so that there are no deposits in the pipeline.
  • flushing systems are installed upstream sections of collectors with a low slope.
  • the principle is to store a large reserve of water and release it sharply into the collector. This "water plug” fills the section of the piping increasing punctually the pressure and the speed of water above 0.6 m / sec. and leads in its passage the possible deposits.
  • the invention is a method of cleaning a pipe more efficient than previous methods, including a better modulation of the cleaning stream of the pipe and which accommodates as cleaning fluid effluents themselves.
  • the process of cleaning a pipe in which one pushes back in the pipeline by a pump, including the discharge pipe leads into a diversion of the pipeline, a first volume of liquid under pressure at a rate and for a duration such as liquid occupies a whole section of the pipeline is characterized in that one interrupts this repression of the first volume then, less than 10 seconds and preferably less than 5 seconds after the end of sending the first volume, the pump is forced back into the pipe, a second volume of liquid under pressure, at a rate and for a duration such that liquid occupies a whole straight section of the pipeline.
  • we repress less than 10 seconds and preferably less than 5 seconds after the end of this refoulement of the second volume, in the pipeline by the pump a third volume of liquid under pressure, at a rate and for a duration such that liquid occupies a whole straight section of the pipeline.
  • the discharge pressure may be in particular between 1 and 2 bar.
  • the liquid can be water, effluents, a suspension aqueous.
  • the invention also relates to a pump unit comprising an AC motor intended to drive a pump at a given speed, and characterized in that the motor is powered via a frequency converter and, preferably the motor operates, at the given speed, at a point, of the magnetic induction curve of the motor as a function of the effective intensity of the supply current, away from saturation.
  • the frequency converter is integrated with the manufacturing pump.
  • Figure 1 is a diagram of a cleaning system of a pipe by a method according to the invention.
  • FIG. 2 represents in FIG. 2 a, the characteristic curve of a pump and in Figure 2b in a corresponding manner, the variation of induction of the motor which drives the pump according to the intensity of the power supply.
  • another pump unit comprising a pump 5, a motor 6, a frequency converter 7, and an analysis circuit 8 including phi cosine engine, all being powered by a supply line 9 in an alternating current connected to the network.
  • the pump unit 5 to 8 is placed in a pit 10 filled with effluents E. Its discharge pipe 11 opens into a branch 12 whose other end opens into the collector C.
  • the pump unit 5 to 8 has the characteristics illustrated in FIGS. Figures 2a and 2b.
  • FIG. 2a gives the pump pressure on the y-axis flow function on the abscissa (the pressure being the head total).
  • the motor 6 When the motor 6 is powered at a frequency of 100 Hz, the The characteristic curve is curve I. At 50 Hz, curve II is shown. The flow Nominal at 50 Hz is Q1 nom.50Hz. At 100 Hz, it goes to the value indicated on the curve by Q2 name. 100 Hz, the corresponding pressures being respectively H (50 Hz) and H (100 Hz). Like the power of the pump is proportional to the cube of the speed or frequency one can to obtain a considerable cork. And this is possible as shown in the Figure 2 b because, while at the flow Q1 name.

Landscapes

  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Cleaning In General (AREA)
  • Control Of Non-Positive-Displacement Pumps (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Sewage (AREA)
  • Pipeline Systems (AREA)
EP04292393A 2003-11-04 2004-10-08 Reinigungsmethode einer Kanalisation Expired - Lifetime EP1529889B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0312924A FR2861762B1 (fr) 2003-11-04 2003-11-04 Procede de curage d'une canalisation et groupe motopompe particulierement adapte a ce procede
FR0312924 2003-11-04

Publications (2)

Publication Number Publication Date
EP1529889A1 true EP1529889A1 (de) 2005-05-11
EP1529889B1 EP1529889B1 (de) 2007-03-28

Family

ID=34429880

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04292393A Expired - Lifetime EP1529889B1 (de) 2003-11-04 2004-10-08 Reinigungsmethode einer Kanalisation

Country Status (7)

Country Link
EP (1) EP1529889B1 (de)
AT (1) ATE358217T1 (de)
DE (1) DE602004005554T2 (de)
DK (1) DK1529889T3 (de)
ES (1) ES2280015T3 (de)
FR (1) FR2861762B1 (de)
PT (1) PT1529889E (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016207716A1 (en) * 2015-06-26 2016-12-29 Dyteqta Limited Drain pipe cleaning device and method of cleaning

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0246562A2 (de) * 1986-05-23 1987-11-25 Oskar Vollmar GmbH Verfahren und Anlage zur Verbesserung des Durchflusses eines Abflussrohres
WO2001032997A1 (de) * 1999-11-04 2001-05-10 Josef Ringhofer Verfahren und vorrichtung zum periodischen durchspülen einer abwasser-rohrleitung
DE10041021A1 (de) * 2000-08-22 2002-03-07 Emilia Steinicke Verfahren zur Reinigung eines Kanals

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0246562A2 (de) * 1986-05-23 1987-11-25 Oskar Vollmar GmbH Verfahren und Anlage zur Verbesserung des Durchflusses eines Abflussrohres
WO2001032997A1 (de) * 1999-11-04 2001-05-10 Josef Ringhofer Verfahren und vorrichtung zum periodischen durchspülen einer abwasser-rohrleitung
DE10041021A1 (de) * 2000-08-22 2002-03-07 Emilia Steinicke Verfahren zur Reinigung eines Kanals

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016207716A1 (en) * 2015-06-26 2016-12-29 Dyteqta Limited Drain pipe cleaning device and method of cleaning
US10843237B2 (en) 2015-06-26 2020-11-24 Dyteqta International Limited Drain pipe cleaning device and method of cleaning

Also Published As

Publication number Publication date
DE602004005554D1 (de) 2007-05-10
EP1529889B1 (de) 2007-03-28
DE602004005554T2 (de) 2007-12-13
DK1529889T3 (da) 2007-08-13
FR2861762A1 (fr) 2005-05-06
ES2280015T3 (es) 2007-09-01
PT1529889E (pt) 2007-06-21
ATE358217T1 (de) 2007-04-15
FR2861762B1 (fr) 2006-12-15

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