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WO1999028242A1 - Controle de l'adjonction continue d'un agent liquide a l'eau - Google Patents

Controle de l'adjonction continue d'un agent liquide a l'eau Download PDF

Info

Publication number
WO1999028242A1
WO1999028242A1 PCT/GB1998/003554 GB9803554W WO9928242A1 WO 1999028242 A1 WO1999028242 A1 WO 1999028242A1 GB 9803554 W GB9803554 W GB 9803554W WO 9928242 A1 WO9928242 A1 WO 9928242A1
Authority
WO
WIPO (PCT)
Prior art keywords
liquid
agent
water
supply
monitoring
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.)
Ceased
Application number
PCT/GB1998/003554
Other languages
English (en)
Other versions
WO1999028242A9 (fr
Inventor
Peter Apsley
Martin Vickers
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.)
SOUTH STAFFORDSHIRE WATER PLC
Original Assignee
SOUTH STAFFORDSHIRE WATER PLC
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 SOUTH STAFFORDSHIRE WATER PLC filed Critical SOUTH STAFFORDSHIRE WATER PLC
Priority to AU12529/99A priority Critical patent/AU1252999A/en
Priority to EP98955805A priority patent/EP1034141A1/fr
Publication of WO1999028242A1 publication Critical patent/WO1999028242A1/fr
Publication of WO1999028242A9 publication Critical patent/WO1999028242A9/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/68—Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water
    • C02F1/685—Devices for dosing the additives
    • C02F1/686—Devices for dosing liquid additives
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens

Definitions

  • the invention relates to monitoring, and in particular to the monitoring of the addition of
  • the invention is seen to good effect in the monitoring of the continuous addition of a liquid agent to water to be used for domestic, industrial or
  • the agent is drawn from a tank, via a pump, and is then added to the water
  • the invention is based on the realisation that by continuously monitoring
  • a water supply system including
  • a main pump for continuously pumping a fast flow of a liquid dosing agent to a body of
  • the system including monitoring apparatus for monitoring the continuity of the fast flow of the agent, the monitoring apparatus comprising means for forming the liquid into
  • detecting means arranged to detect the passage of individual liquid
  • the invention provides a method of maintaining a substantially
  • the detecting means comprises a fibre optic arranged to detect the interruption or
  • the light beam need not be visible but could be, e.g. IR or of any other suitable
  • the invention provides a pump system comprising a pump unit
  • FIG. 1 is a block diagram showing the dosing system in accordance with the
  • Figure 2 is a vertical section through the form of monitoring apparatus of the
  • Figure 3 is a plan view, partly in section of the monitor & PLC interface.
  • the apparatus comprises a system for dosing liquid chemical e.g. hypochlorite, to add a source of chlorine disinfectant to a supply of water for domestic, industrial or commercial
  • liquid chemical e.g. hypochlorite
  • the system of Figure 1 comprises a main supply pipe 1 to introduce water to a reservoir
  • the system being arranged to dose the water with a liquid agent to chlorinate
  • the agent is sodium hypochlorite held as a concentrated liquid in tank 2.
  • That pipeline 4 is pumped by a peristaltic pump 3 via a pipeline 4 to a device M. That pipeline
  • the diluted agent is supplied via an eductor 7 along a pipe and then to the main pipe 1 via pipe 8. In this way the hypochlorite is diluted and supplied at a low
  • a monitor unit 9 further downstream measures the
  • the device M comprises a vertically mounted light transparent
  • tube 11 e.g. of plastics such as polycarbonate or of glass.
  • a plastics such as polycarbonate or of glass.
  • the tube 11 is mounted in a frame
  • beam B extends across the tube and in the path of liquid 17 dripping from the stopper.
  • cables 16 A, 16B are connected to a fibre-optic amplifier, not shown, arranged to generate a
  • a switch is triggered to connect a standby pump to the
  • the monitoring device M can ensure that the supply of dosing
  • the cables 16 A, 16B of the monitor device M are connected to a unit
  • the monitor device Ms is the same as device M and has the same beam system Bs.
  • the amplifier is self-teaching, i.e. it
  • PLC 10 may be arranged to activate the stand by pump in any convenient way.
  • PLC 10 may be arranged to activate the stand by pump in any convenient way.
  • the PLC 10 records the signals from the transistorised input as digital pulses and if one is
  • the PLC is programmed to
  • dosing liquid is drawn by the pump from the main tank into the pipeline. Water is

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)

Abstract

L'invention concerne un système d'approvisionnement en eau (1) équipé d'un appareil de distribution (2, 3) qui permet d'ajouter à la source d'approvisionnement un agent de dosage liquide, tel que 'hypo', par exemple, pour chlorer ladite source. Pour maintenir le niveau du chlore, le débit de l'agent de dosage est mesuré par un compteur de goutte-à-goutte (4) et, si ce débit est hors tolérance, une source d'approvisionnement de réserve (5) se met en service.
PCT/GB1998/003554 1997-11-28 1998-11-27 Controle de l'adjonction continue d'un agent liquide a l'eau Ceased WO1999028242A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU12529/99A AU1252999A (en) 1997-11-28 1998-11-27 Monitoring of the continuous addition of a liquid agent to water
EP98955805A EP1034141A1 (fr) 1997-11-28 1998-11-27 Controle de l'adjonction continue d'un agent liquide a l'eau

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9725350A GB2331742B (en) 1997-11-28 1997-11-28 Monitoring the addition of a liquid agent to another liquid
GB9725350.4 1997-11-28

Publications (2)

Publication Number Publication Date
WO1999028242A1 true WO1999028242A1 (fr) 1999-06-10
WO1999028242A9 WO1999028242A9 (fr) 1999-08-19

Family

ID=10822895

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1998/003554 Ceased WO1999028242A1 (fr) 1997-11-28 1998-11-27 Controle de l'adjonction continue d'un agent liquide a l'eau

Country Status (4)

Country Link
EP (1) EP1034141A1 (fr)
AU (1) AU1252999A (fr)
GB (1) GB2331742B (fr)
WO (1) WO1999028242A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2703360A1 (fr) * 2012-09-03 2014-03-05 Siemens Aktiengesellschaft Processus et dispositif de purification dýeau
GB2521810A (en) * 2013-10-25 2015-07-08 Global Chemical Technologies Ltd Method and apparatus for making stable acidic chlorinated solutions

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5750592A (en) * 1980-09-12 1982-03-25 Nishihara Environ Sanit Res Corp Pressure injecting device for sodium hypochlorite solution
US4594154A (en) * 1984-08-02 1986-06-10 Cfec Self-contained device for sterilizing water
WO1991013031A1 (fr) * 1990-03-01 1991-09-05 North West Water Limited Traitement de l'eau
JPH078939A (ja) * 1993-06-26 1995-01-13 Ii C Techno:Kk 汚水処理装置における薬液の添加量確認機構

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU4536685A (en) * 1984-08-06 1986-02-13 Abbott Laboratories Optical drop detecting system
GB2199405A (en) * 1986-12-31 1988-07-06 Lin Jin Long Drop rate sensor
US5256155A (en) * 1991-04-01 1993-10-26 Sherwood Medical Company Drop detection method and apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5750592A (en) * 1980-09-12 1982-03-25 Nishihara Environ Sanit Res Corp Pressure injecting device for sodium hypochlorite solution
US4594154A (en) * 1984-08-02 1986-06-10 Cfec Self-contained device for sterilizing water
WO1991013031A1 (fr) * 1990-03-01 1991-09-05 North West Water Limited Traitement de l'eau
JPH078939A (ja) * 1993-06-26 1995-01-13 Ii C Techno:Kk 汚水処理装置における薬液の添加量確認機構

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 006, no. 122 (C - 112) 7 July 1982 (1982-07-07) *
PATENT ABSTRACTS OF JAPAN vol. 095, no. 004 31 May 1995 (1995-05-31) *

Also Published As

Publication number Publication date
EP1034141A1 (fr) 2000-09-13
WO1999028242A9 (fr) 1999-08-19
AU1252999A (en) 1999-06-16
GB2331742A (en) 1999-06-02
GB9725350D0 (en) 1998-01-28
GB2331742B (en) 2002-07-17
GB2331742A9 (en)

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