CA2169248A1 - Automatic chemical monitor and control system for swimming pools - Google Patents

Automatic chemical monitor and control system for swimming pools

Info

Publication number
CA2169248A1
CA2169248A1 CA002169248A CA2169248A CA2169248A1 CA 2169248 A1 CA2169248 A1 CA 2169248A1 CA 002169248 A CA002169248 A CA 002169248A CA 2169248 A CA2169248 A CA 2169248A CA 2169248 A1 CA2169248 A1 CA 2169248A1
Authority
CA
Canada
Prior art keywords
water
coloring reagent
sample
output signal
chemical
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
CA002169248A
Other languages
French (fr)
Other versions
CA2169248C (en
Inventor
Etienne Prive
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.)
Universite Laval
Original Assignee
Universite Laval
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 Universite Laval filed Critical Universite Laval
Priority to CA002169248A priority Critical patent/CA2169248C/en
Publication of CA2169248A1 publication Critical patent/CA2169248A1/en
Application granted granted Critical
Publication of CA2169248C publication Critical patent/CA2169248C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • C02F1/008—Control or steering systems not provided for elsewhere in subclass C02F
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/50—Circulation mixers, e.g. wherein at least part of the mixture is discharged from and reintroduced into a receptacle
    • B01F25/53—Circulation mixers, e.g. wherein at least part of the mixture is discharged from and reintroduced into a receptacle in which the mixture is discharged from and reintroduced into a receptacle through a recirculation tube, into which an additional component is introduced
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/20—Measuring; Control or regulation
    • B01F35/21—Measuring
    • B01F35/213—Measuring of the properties of the mixtures, e.g. temperature, density or colour
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/20—Measuring; Control or regulation
    • B01F35/21—Measuring
    • B01F35/2132—Concentration, pH, pOH, p(ION) or oxygen-demand
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/20—Measuring; Control or regulation
    • B01F35/22—Control or regulation
    • B01F35/221—Control or regulation of operational parameters, e.g. level of material in the mixer, temperature or pressure
    • B01F35/2211—Amount of delivered fluid during a period
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
    • B01F2101/305—Treatment of water, waste water or sewage
    • 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
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/42—Nature of the water, waste water, sewage or sludge to be treated from bathing facilities, e.g. swimming pools
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/005—Processes using a programmable logic controller [PLC]
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/06—Controlling or monitoring parameters in water treatment pH
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/29—Chlorine compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (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)
  • Automatic Analysis And Handling Materials Therefor (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)

Abstract

A chemical monitoring and controlling system for a reservoir of water having a recirculating water line, comprises a photometric analyzer including a sample cell in fluid communication with the recirculating water line for holding a sample of water from the reservoir, the analyzer providing a first output signal indicative of the concentration of chemical in the water sample; at least one coloring reagent supply means in fluid communication with the sample cell; fluid control means for controlling the supply of water and coloring reagent to the sample cell; comparator means coupled to the analyzer for comparing the first output signal with a predetermined reference value and providing a second output signal proportional to the difference therebetween when the first output signal varies from the predetermined reference value; and feed control means responsive to the second output signal for regulating supply of the chemical from a dispenser to the reservoir of water such that the concentration of the chemical therein reaches the predetermined reference value. The sample cell comprises a housing defining a sample chamber for containing the water sample in admixture with the coloring reagent and an air chamber communicating with the sample chamber, a water inlet and at least one coloring reagent inlet for receiving predetermined quantities of water and coloring reagent, the water inlet and the coloring reagent inlet merging into a tubular member having a constricted end portion opening into the sample chamber for discharging thereinto the mixture of water and coloring reagent, the constricted end portion providing uniform mixing of the water and the coloring reagent, and fluid discharge means for emptying the sample chamber.
CA002169248A 1996-02-09 1996-02-09 Automatic chemical monitor and control system for swimming pools Expired - Fee Related CA2169248C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002169248A CA2169248C (en) 1996-02-09 1996-02-09 Automatic chemical monitor and control system for swimming pools

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA002169248A CA2169248C (en) 1996-02-09 1996-02-09 Automatic chemical monitor and control system for swimming pools

Publications (2)

Publication Number Publication Date
CA2169248A1 true CA2169248A1 (en) 1997-08-10
CA2169248C CA2169248C (en) 2001-03-13

Family

ID=4157545

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002169248A Expired - Fee Related CA2169248C (en) 1996-02-09 1996-02-09 Automatic chemical monitor and control system for swimming pools

Country Status (1)

Country Link
CA (1) CA2169248C (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1304559A1 (en) * 2001-10-19 2003-04-23 Tecnologie Dinamiche S.A.S. di Rossi Vincenzo & C. Device for detecting the presence of chlorine in dialysis machines
WO2010055236A1 (en) * 2008-11-17 2010-05-20 Pacific Industrie Device and method for monitoring the concentration of a halogenated disinfectant in a swimming pool or the like
US20120107945A1 (en) * 2009-05-28 2012-05-03 Pacific Industrie Chemical reagent for measuring the level of halogen agents, in particular in swimming-pool water and associated measurement method
CN105967252A (en) * 2016-07-24 2016-09-28 佛山市云米电器科技有限公司 Water purifying device capable of controlling water preparation quantity according to historical water usage information
GB2537277A (en) * 2013-11-07 2016-10-12 Sentinel Performance Solutions Ltd Container of chemical for admission to a liquid flow circuit
CN112062251A (en) * 2020-07-24 2020-12-11 宁波市自来水有限公司 Full-automatic lime milk adding system for water works and operation method

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1304559A1 (en) * 2001-10-19 2003-04-23 Tecnologie Dinamiche S.A.S. di Rossi Vincenzo & C. Device for detecting the presence of chlorine in dialysis machines
WO2010055236A1 (en) * 2008-11-17 2010-05-20 Pacific Industrie Device and method for monitoring the concentration of a halogenated disinfectant in a swimming pool or the like
FR2938653A1 (en) * 2008-11-17 2010-05-21 Pacific Ind DEVICE AND METHOD FOR CONTROLLING A CONCENTRATION OF A HALOGEN DISINFECTANT IN A SWIMMING POOL OR THE LIKE
AU2009315505B2 (en) * 2008-11-17 2012-12-20 Pacific Industrie Device and method for monitoring the concentration of a halogenated disinfectant in a swimming pool or the like
US8778692B2 (en) 2008-11-17 2014-07-15 Pacific Industrie Measurement method for measuring the level of halogen agents in swimming-pool water
US20120107945A1 (en) * 2009-05-28 2012-05-03 Pacific Industrie Chemical reagent for measuring the level of halogen agents, in particular in swimming-pool water and associated measurement method
GB2537277A (en) * 2013-11-07 2016-10-12 Sentinel Performance Solutions Ltd Container of chemical for admission to a liquid flow circuit
GB2537277B (en) * 2013-11-07 2017-06-21 Sentinel Performance Solutions Ltd Monitoring and operation of a liquid flow circuit containing a chemical additive
CN105967252A (en) * 2016-07-24 2016-09-28 佛山市云米电器科技有限公司 Water purifying device capable of controlling water preparation quantity according to historical water usage information
CN112062251A (en) * 2020-07-24 2020-12-11 宁波市自来水有限公司 Full-automatic lime milk adding system for water works and operation method

Also Published As

Publication number Publication date
CA2169248C (en) 2001-03-13

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Legal Events

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