WO2004020344A1 - Chlorateur - Google Patents

Chlorateur Download PDF

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Publication number
WO2004020344A1
WO2004020344A1 PCT/IB2003/003610 IB0303610W WO2004020344A1 WO 2004020344 A1 WO2004020344 A1 WO 2004020344A1 IB 0303610 W IB0303610 W IB 0303610W WO 2004020344 A1 WO2004020344 A1 WO 2004020344A1
Authority
WO
WIPO (PCT)
Prior art keywords
water
chlorinator
sensor
chlorine
ambient temperature
Prior art date
Application number
PCT/IB2003/003610
Other languages
English (en)
Inventor
Helge Jochen Schneider
Original Assignee
Helge Jochen Schneider
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 Helge Jochen Schneider filed Critical Helge Jochen Schneider
Priority to AU2003255910A priority Critical patent/AU2003255910A1/en
Publication of WO2004020344A1 publication Critical patent/WO2004020344A1/fr

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
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
    • C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
    • C02F1/4674—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation with halogen or compound of halogens, e.g. chlorine, bromine
    • 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
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/4606—Treatment of water, waste water, or sewage by electrochemical methods for producing oligodynamic substances to disinfect the water
    • 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
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • 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
    • C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
    • C02F1/505—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment by oligodynamic treatment
    • 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
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/46—Apparatus for electrochemical processes
    • C02F2201/461—Electrolysis apparatus
    • C02F2201/46105—Details relating to the electrolytic devices
    • C02F2201/4612—Controlling or monitoring
    • C02F2201/46125—Electrical variables
    • C02F2201/4613—Inversing polarity
    • 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
    • C02F2209/02—Temperature

Definitions

  • THIS invention relates to a chlorinator.
  • Water in swimming pools is chlorinated to prevent the accumulation of algae.
  • swimming pools are often chlorinated with salt chlorinators.
  • Salt chlorinators are known for their cost saving abilities over conventional chemical methods in that they can automatically add chlorine at regular intervals to the water of a swimming pool.
  • the chlorine required to maintain biologically effective levels in a swimming pool is, amongst others, a factor of ambient temperature. Typically more chlorine is required in summertime than is the case in winter.
  • a salt chlorinator includes a manual adjuster for controlling chlorine output. Due to weather variances it is however not always possible to control the chlorine output of a chlorinator effectively.
  • Silver ions are known for their ability to act as a bacterial neutralizer. It would therefore be advantageous to incorporate control of the release of chlorine and silver ions in a single system.
  • a chlorinator comprising a chlorinator cell for supplying an amount of chlorine to a body of water, a sensor for measuring ambient temperature, and a control unit for controlling the supply of chlorine to the body of water in response to ambient temperature measurements taken by the sensor.
  • the senor can measure ambient air temperature.
  • the senor can measure the temperature of the body of water.
  • the invention extends to a method of purifying a body of water by controlling the chlorine supplied to the body of water in response to ambient temperature measurements.
  • an ionizing system comprising an ionizing cell for supplying an amount of silver ions to a body of water, a sensor for measuring ambient temperature, and a control unit for controlling the supply of silver ions to the body of water in response to ambient temperature measurements taken by the sensor.
  • a salt chlorinator comprising a chlorinator cell having two electrodes, i.e. an anode and a cathode.
  • a chlorinator cell having two electrodes, i.e. an anode and a cathode.
  • an electrolysis process is started which produces chlorine gas.
  • hypochlorite liquid chlorine
  • Hypochlorite is an acid and is a very strong oxidizer for blocking enzymatic activity of the inner proteins of algae. As a consequence the presence of hypochlorite in water will deter the accumulation of algae.
  • the drawing shows a chlorinator of the invention 10 installed in a commonly found water purification system for a swimming pool, generally indicated by the reference numeral 12.
  • a pump 14 pumps salt water from a body of water, in this embodiment a swimming pool which is not shown in the drawing, through an inlet pipe 16, and via a pipe system 18 to a filter 20.
  • the filter 20 comprises a container which houses granules such that when water is passed through it, debris is removed from the water.
  • the salt water is fed through a pipe 22 to a chlorinator cell 24 having two electrodes, not shown in the drawings.
  • a chlorinator cell 24 having two electrodes, not shown in the drawings.
  • an amount of chlorine is added to the water in order to maintain the water of the swimming pool at biologically effective levels such that the accumulation of algae is deterred.
  • the chlorine is supplied to the water by way of an electrolysis process which takes place at the electrodes of the chlorinator cell 24 in the manner described above.
  • a sensor 26 and an electronic control unit 28 is provided. The sensor is located between the filter 20 and the chlorinator cell 24 as shown.
  • the sensor 26 is used for measuring the ambient temperature of the swimming pool or its surroundings. Typically the temperature of either the water of the swimming pool or the temperature of the ambient air is measured. It will however be appreciated that both the water temperature and the air temperature could be measured.
  • the sensor 26 measures the water temperature which is fed through the pipe 22.
  • the temperature reading is hereafter communicated to the control unit 28.
  • the control unit 28 is preprogrammed with information on water temperature as well as corresponding amounts of chlorine which is to be supplied to the water in response to specific measured temperatures.
  • the amounts of chlorine specified to the control unit will be the most effective amounts required at different temperatures to deter the accumulation of algae.
  • control unit 28 Upon receipt of a temperature reading from the sensor 26 the control unit 28 compares the received temperature reading with the preprogrammed information which is stored on the control unit 28 and determines the amount of chorine which is required to be supplied to the water. Once this amount is calculated, the control unit 28 automatically activates the chlorinator cell 24 and chlorine in the preprogrammed quantity is supplied to the water.
  • the amount of chlorine supplied to the water will depend on the amount of chlorine gas produced by the electrolysis process. Therefore if the sensor measures a temperature which requires an increase in the chlorine supply, the control unit will increase the electricity supply to the electrodes of the chlorinator cell as this will cause the electrolysis process to produce more chlorine gas and as a consequence more hypochlorite. Typically the warmer the temperature measured, the higher the amount of chlorine which is required to be supplied to the water.
  • chlorinated water is returned to the swimming pool through an outlet pipe 30.
  • the ionizing system comprises an ionizing cell 32 which is located in the outlet pipe 30.
  • the ionizing cell 32 should be placed at least 1 m downstream from the chlorinator cell 24.
  • the ionizing cell 32 comprises two electrodes, not shown in the drawings, in this embodiment made of silver and titanium respectively. However it is envisaged that the two electrodes could both be made from silver in a highly pure form.
  • the silver ions are produced at the ionizing cell 32 through an electrolysis process. As is the case with the amount of chlorine which is required in the water of the swimming pool, so also is the amount of silver ions which are required to deter the accumulation of bacteria temperature dependant.
  • the silver ionizing cell 32 is in communication with the control unit 26.
  • the control unit 26 is preprogrammed with temperatures and associated amounts of silver ions which are to be supplied to the water feed at specific temperatures.
  • the sensor 26 measures the temperature of the water feed whereafter the measurement is communicated to the control unit 28.
  • the control unit 28 compares the temperature reading of the sensor 26 with the preprogrammed information which is stored thereon and determines the amount of silver ions which are to be supplied to the water. Once the amount is calculated, the control unit 28 automatically adjusts the electricity supply to the electrodes of the ionizing cell 32 such that the required amount of silver ions can be produced by the electrolysis process and supplied to the water. In order to increase the amount of silver ions produced, the electricity supply to the electrodes will be increased. A decrease in the amount of silver ions on the other hand is achieved by decreasing the electricity supply to the electrodes and accordingly slowing the electrolysis process and the production of silver ions. Typically the warmer the temperature measured, the higher the amount of silver ions required.
  • the ionizing cell 32 of the present embodiment includes a safety transformer which is not shown in the drawing. Further more the ionizing cell 32 operates at a direct current voltage in the range of 10V to 40V, and a direct current having a magnitude in the range of 30mA to 300mA.
  • control unit may include means for sensing the presence of impurities on the ionizing cell 32 and for running the electrolysis process in reverse by changing the flow direction of the electrical current in the electrodes such that they can be cleaned.
  • chlorinator and the ionizing system of the invention need not only be used for swimming pools but could have a wide range of applications, for example in spas or water reservoirs.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General 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)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)

Abstract

L'invention concerne un chlorateur (10) qui comprend: une cellule de chloration (24) permettant de fournir une quantité de chlore à une installation comprenant de l'eau; un capteur (26) permettant de mesurer la température ambiante; et une unité de commande (28) permettant de commander la quantité de chlore fournie à l'installation comprenant de l'eau en réponse aux mesures de température ambiante relevées par le capteur. L'invention concerne également à un système d'ionisation (31) permettant de fournir automatiquement des ions argent à l'installation comprenant de l'eau en réponse aux mesures de température ambiante relevées par le capteur. L'invention concerne en outre un procédé permettant de commander les quantités de chlore et d'ions argent fournies à l'installation comprenant de l'eau.
PCT/IB2003/003610 2002-08-29 2003-08-29 Chlorateur WO2004020344A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003255910A AU2003255910A1 (en) 2002-08-29 2003-08-29 Chlorinator

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA200206920 2002-08-29
ZA2002/6920 2002-08-29

Publications (1)

Publication Number Publication Date
WO2004020344A1 true WO2004020344A1 (fr) 2004-03-11

Family

ID=31979076

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2003/003610 WO2004020344A1 (fr) 2002-08-29 2003-08-29 Chlorateur

Country Status (2)

Country Link
AU (1) AU2003255910A1 (fr)
WO (1) WO2004020344A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007078730A1 (fr) * 2005-12-21 2007-07-12 E.I. Du Pont De Nemours And Company Composition oxydante pour eau salee

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4255246A (en) * 1979-01-29 1981-03-10 Davis David W Electrolytic cell for chlorine production
US4713170A (en) * 1986-03-31 1987-12-15 Florida Development And Manufacturing, Inc. Swimming pool water purifier
EP1108683A2 (fr) * 1999-12-14 2001-06-20 Sanyo Electric Co., Ltd. Dispositif de traitement de l eau
JP2001276828A (ja) * 2000-03-30 2001-10-09 Tomoyoshi Miyazaki 水の電解消毒方法及び電解消毒装置
GB2368838A (en) * 2000-11-13 2002-05-15 Wellby Water Systems Ltd Maintaining the water in a swimming pool in a safe state
US6423234B1 (en) * 1999-03-02 2002-07-23 United States Filter Corporation Air and water purification using continuous breakpoint halogenation

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4255246A (en) * 1979-01-29 1981-03-10 Davis David W Electrolytic cell for chlorine production
US4713170A (en) * 1986-03-31 1987-12-15 Florida Development And Manufacturing, Inc. Swimming pool water purifier
US6423234B1 (en) * 1999-03-02 2002-07-23 United States Filter Corporation Air and water purification using continuous breakpoint halogenation
EP1108683A2 (fr) * 1999-12-14 2001-06-20 Sanyo Electric Co., Ltd. Dispositif de traitement de l eau
JP2001276828A (ja) * 2000-03-30 2001-10-09 Tomoyoshi Miyazaki 水の電解消毒方法及び電解消毒装置
GB2368838A (en) * 2000-11-13 2002-05-15 Wellby Water Systems Ltd Maintaining the water in a swimming pool in a safe state

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 2002, no. 02 2 April 2002 (2002-04-02) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007078730A1 (fr) * 2005-12-21 2007-07-12 E.I. Du Pont De Nemours And Company Composition oxydante pour eau salee

Also Published As

Publication number Publication date
AU2003255910A1 (en) 2004-03-19

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