EP2439413A3 - Pump control system - Google Patents

Pump control system Download PDF

Info

Publication number
EP2439413A3
EP2439413A3 EP11184422.1A EP11184422A EP2439413A3 EP 2439413 A3 EP2439413 A3 EP 2439413A3 EP 11184422 A EP11184422 A EP 11184422A EP 2439413 A3 EP2439413 A3 EP 2439413A3
Authority
EP
European Patent Office
Prior art keywords
pump
current
deactivating
threshold value
control system
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
EP11184422.1A
Other languages
German (de)
French (fr)
Other versions
EP2439413B1 (en
EP2439413A2 (en
Inventor
Stanley Mcfarland
Alan Brown
David Mcmullan
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.)
Munster Simms Engineering Ltd
Original Assignee
Munster Simms Engineering Ltd
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 Munster Simms Engineering Ltd filed Critical Munster Simms Engineering Ltd
Publication of EP2439413A2 publication Critical patent/EP2439413A2/en
Publication of EP2439413A3 publication Critical patent/EP2439413A3/en
Application granted granted Critical
Publication of EP2439413B1 publication Critical patent/EP2439413B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43D—MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D3/00—Lasts
    • A43D3/14—Stretching or spreading lasts; Boot-trees; Fillers; Devices for maintaining the shape of the shoe
    • A43D3/1416—Boot-trees
    • 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
    • F04D15/0245—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the pump
    • F04D15/0254—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the pump the condition being speed or load
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
    • F04D13/086—Units comprising pumps and their driving means the pump being electrically driven for submerged use the pump and drive motor are both submerged
    • 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
    • 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
    • F04D15/0236—Lack of liquid level being detected by analysing the parameters of the electric drive, e.g. current or power consumption

Abstract

A pump system for a caravan or the like comprising a controller that monitors the current drawn by the pump and deactivates the pump when the current decreases below said one or more current threshold values. A first current threshold value corresponds to the current drawn by the pump when pumping fluid at a rate corresponding to taps being closed. A second current threshold value corresponds to the current drawn by the pump when running dry. Deactivating the pump using detected current levels prevents uneven water flow and other disadvantages associated with deactivating the pump using a pressure switch.
EP11184422.1A 2010-10-08 2011-10-07 Pump control system Active EP2439413B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB1017025.6A GB201017025D0 (en) 2010-10-08 2010-10-08 Pump control system

Publications (3)

Publication Number Publication Date
EP2439413A2 EP2439413A2 (en) 2012-04-11
EP2439413A3 true EP2439413A3 (en) 2013-10-09
EP2439413B1 EP2439413B1 (en) 2020-05-06

Family

ID=43304301

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11184422.1A Active EP2439413B1 (en) 2010-10-08 2011-10-07 Pump control system

Country Status (2)

Country Link
EP (1) EP2439413B1 (en)
GB (2) GB201017025D0 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10727635B2 (en) 2015-03-25 2020-07-28 Reza Afshar Current sensing switch for use with pumps
IT201600082296A1 (en) * 2016-08-04 2018-02-04 Enrico Raddi IMPROVED IMPERSION
FR3087856A1 (en) * 2018-10-25 2020-05-01 Pascal Eonin EXTERNAL ELECTRONIC CONTROL DEVICE FOR ON-BOARD WATER PUMP
EP3973192A4 (en) * 2019-05-22 2023-05-31 White International Pty Ltd A pump controller
EP3838082A1 (en) 2019-12-19 2021-06-23 Koninklijke Philips N.V. A flow delivery system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3953777A (en) * 1973-02-12 1976-04-27 Delta-X Corporation Control circuit for shutting off the electrical power to a liquid well pump
EP1255174A1 (en) * 2001-04-30 2002-11-06 Starite S.p.A. Electric Pump with automatic on-off device
US20030174450A1 (en) * 2000-07-07 2003-09-18 Kaoru Nakajima Water supply
FR2860271A1 (en) * 2003-09-30 2005-04-01 Realisations Electroniques Eur Start-stop control device for pump, has microcontroller that compares measured and recorded effective current and time lag between voltage and current, and stops pump in case of low or high intensity of current to pump
WO2009004277A2 (en) * 2007-06-01 2009-01-08 Munster Simms Engineering Limited Control arrangement for water pump
JP2009264190A (en) * 2008-04-23 2009-11-12 Ebara Corp Submersible pump control panel and its control method

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06346889A (en) * 1993-04-13 1994-12-20 Hitachi Ltd Stop method for sewage/filth pump
JPH07200014A (en) * 1994-01-06 1995-08-04 Kubota Corp Operation control method for pump
JP3614630B2 (en) * 1997-12-09 2005-01-26 株式会社川本製作所 Automatic water supply device
US6547529B2 (en) * 2001-08-24 2003-04-15 Donald Gross Dry tank shutdown system for pumps

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3953777A (en) * 1973-02-12 1976-04-27 Delta-X Corporation Control circuit for shutting off the electrical power to a liquid well pump
US20030174450A1 (en) * 2000-07-07 2003-09-18 Kaoru Nakajima Water supply
EP1255174A1 (en) * 2001-04-30 2002-11-06 Starite S.p.A. Electric Pump with automatic on-off device
FR2860271A1 (en) * 2003-09-30 2005-04-01 Realisations Electroniques Eur Start-stop control device for pump, has microcontroller that compares measured and recorded effective current and time lag between voltage and current, and stops pump in case of low or high intensity of current to pump
WO2009004277A2 (en) * 2007-06-01 2009-01-08 Munster Simms Engineering Limited Control arrangement for water pump
JP2009264190A (en) * 2008-04-23 2009-11-12 Ebara Corp Submersible pump control panel and its control method

Also Published As

Publication number Publication date
EP2439413B1 (en) 2020-05-06
GB201017025D0 (en) 2010-11-24
EP2439413A2 (en) 2012-04-11
GB201117353D0 (en) 2011-11-23
GB2484408A (en) 2012-04-11
GB2484408B (en) 2017-01-04

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