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ATE235656T1 - SUBMERSIBLE WASTEWATER PUMP - Google Patents

SUBMERSIBLE WASTEWATER PUMP

Info

Publication number
ATE235656T1
ATE235656T1 AT98402134T AT98402134T ATE235656T1 AT E235656 T1 ATE235656 T1 AT E235656T1 AT 98402134 T AT98402134 T AT 98402134T AT 98402134 T AT98402134 T AT 98402134T AT E235656 T1 ATE235656 T1 AT E235656T1
Authority
AT
Austria
Prior art keywords
level
pump
detector
change
state
Prior art date
Application number
AT98402134T
Other languages
German (de)
Inventor
Nicolas Markovits
Louis Symoens
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
Application granted granted Critical
Publication of ATE235656T1 publication Critical patent/ATE235656T1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/02—Stopping of pumps, or operating valves, on occurrence of unwanted conditions
    • F04D15/0209—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the working fluid
    • F04D15/0218—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the working fluid the condition being a liquid level or a lack of liquid supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/02—Stopping, starting, unloading or idling control
    • F04B49/025—Stopping, starting, unloading or idling control by means of floats

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Control Of Non-Positive-Displacement Pumps (AREA)
  • Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)

Abstract

The level detectors provides signals indicating level change, with timing circuit determining duration of pump action necessary. The submersible pump includes a pump (1) driven by an electric motor (2) controlled by a control circuit (3). The whole assembly is intended to be submerged in a container (C) holding effluent. The control circuit includes a first detector (6) sensing the level of effluent in the container providing a change of state signal when the level reaches a first level (NH). A second detector (8) determines when the level falls below a second level (NM) which is lower than the first level. The circuit includes provision to determine the time elapsing between the change of state of the first detector and the change of state of the second detector, in order to control the operating time necessary for the operation of the pump. The two detectors may be mounted on the pump itself.
AT98402134T 1997-09-17 1998-08-28 SUBMERSIBLE WASTEWATER PUMP ATE235656T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9711567A FR2768468A1 (en) 1997-09-17 1997-09-17 SUBMERSIBLE ELECTRIC PUMP UNIT FOR EFFLUENT LIFTING LEAVING AS LITTLE RESIDUE AS POSSIBLE

Publications (1)

Publication Number Publication Date
ATE235656T1 true ATE235656T1 (en) 2003-04-15

Family

ID=9511169

Family Applications (1)

Application Number Title Priority Date Filing Date
AT98402134T ATE235656T1 (en) 1997-09-17 1998-08-28 SUBMERSIBLE WASTEWATER PUMP

Country Status (7)

Country Link
EP (1) EP0903497B1 (en)
AT (1) ATE235656T1 (en)
DE (1) DE69812515T2 (en)
DK (1) DK0903497T3 (en)
ES (1) ES2190573T3 (en)
FR (1) FR2768468A1 (en)
PT (1) PT903497E (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2817923B1 (en) 2000-12-12 2003-03-21 Pompes Salmson Sa PUMPING DEVICE FOR LIQUID LIFTING AND CONTROL METHOD

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE420788B (en) * 1978-11-20 1981-10-26 Elfi Innovationer SET AND DEVICE TO CONTROL THE STARTING OF AN INTERMITTENT WORKING PUMP
JPS5810187A (en) * 1981-07-10 1983-01-20 Ebara Corp Apparatus for judging capacity of feed water pump
JPH07103865B2 (en) * 1990-11-15 1995-11-08 株式会社荏原製作所 How to stop operation of sewage / dirt pump
JPH07305693A (en) * 1994-05-12 1995-11-21 Hitachi Ltd Controller for submergible pump

Also Published As

Publication number Publication date
ES2190573T3 (en) 2003-08-01
DK0903497T3 (en) 2003-07-14
FR2768468A1 (en) 1999-03-19
EP0903497A1 (en) 1999-03-24
DE69812515T2 (en) 2003-11-06
PT903497E (en) 2003-07-31
EP0903497B1 (en) 2003-03-26
DE69812515D1 (en) 2003-04-30

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Legal Events

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