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WO2001051420A2 - Distributeur chimique - Google Patents

Distributeur chimique Download PDF

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Publication number
WO2001051420A2
WO2001051420A2 PCT/IB2001/000020 IB0100020W WO0151420A2 WO 2001051420 A2 WO2001051420 A2 WO 2001051420A2 IB 0100020 W IB0100020 W IB 0100020W WO 0151420 A2 WO0151420 A2 WO 0151420A2
Authority
WO
WIPO (PCT)
Prior art keywords
chemical dispenser
chemical
dispenser
tube
fluid
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/IB2001/000020
Other languages
English (en)
Other versions
WO2001051420A3 (fr
Inventor
Gert Erasmus Van Wyk
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AU2001225404A priority Critical patent/AU2001225404A1/en
Publication of WO2001051420A2 publication Critical patent/WO2001051420A2/fr
Publication of WO2001051420A3 publication Critical patent/WO2001051420A3/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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F21/00—Dissolving
    • B01F21/20—Dissolving using flow mixing
    • B01F21/22—Dissolving using flow mixing using additional holders in conduits, containers or pools for keeping the solid material in place, e.g. supports or receptacles
    • 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
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/316—Injector mixers in conduits or tubes through which the main component flows with containers for additional components fixed to the conduit
    • 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
    • C02F1/687—Devices for dosing solid compounds
    • 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
    • C02F1/688—Devices in which the water progressively dissolves a solid compound
    • 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

Definitions

  • This invention relates to a chemical dispenser and, more particularly, to a chemical dispenser for dispensing chemicals into a flow of fluid, preferably water, to treat said flow of fluid.
  • contamination of the circulating fluid presents a problem.
  • This contamination can take the form of a build-up of algae in the case of swimming pool water, or the build-up of bacteria in machine tool cutting oils.
  • the swimming pool is rendered unsightly and often unusable.
  • an unpleasant odour is produced and the oil can be degraded, reducing its effectiveness.
  • algicides or biocides are added to the fluid.
  • other chemicals can be added to remove undesirable chemical elements such as carbonates and the like.
  • These chemical additives should be added to the fluid regularly to contain a build-up of contaminants, for it is usually less expensive and less time consuming than treating a fluid which has become badly contaminated.
  • One disadvantage of having to regularly dose or add chemicals to a fluid in order to contain the build-up of contaminants is that a person responsible for so doing often forgets to do so. In an attempt to overcome this disadvantage, particularly in swimming pools, a range of automatic chemical dispensers have been developed.
  • One form of such dispenser makes use of solid chlorine tablets, which are placed in a floating receptacle.
  • An early example of such a receptacle is in the form of a plastics material basket, which is left to float in the swimming pool. The chlorine tablets gradually dissolve, releasing chlorine into the water.
  • a more modern variation of this encloses the tablets in a buoyant receptacle.
  • a number of small holes are opened in the sides of the receptacle depending on the size of the swimming pool and on the season.
  • Both of the above chlorine dispensers have a disadvantage in that chlorine is released continuously.
  • the relatively concentrated chlorine solution released can discolour the wall of the swimming pool.
  • a chemical dispenser for dispensing a desired chemical into a stream of fluid, comprising: an open-ended tube defining a flow passage therethrough, the tube having a portion of reduced cross-section along its length; a receiving formation co-operable with a chemical receptacle for storing the desired chemical therein; and an inlet and an outlet passage providing flow communication between the tube and the chemical receptacle operatively secured to the receiving formation, the outlet passage being in flow communication with the tube at the area of reduced to cross-section thereof.
  • the inlet passage to have a regulating valve therein, for the regulating valve to be a butterfly, alternatively a ball valve, for the tube to be of circular cross-section, and for the chemical receptacle to be a plastics receptacle.
  • a regulating valve therein, for the regulating valve to be a butterfly, alternatively a ball valve, for the tube to be of circular cross-section, and for the chemical receptacle to be a plastics receptacle.
  • Still further features of the invention provide for the chemical dispenser to have a flotation means securable to the tube at a position remote from the receiving formation, and for the flotation means to be securable to the tube at the position of reduced cross-section thereof.
  • Yet further features of the invention provide for the chemical dispenser to be locatable in the stream of fluid adjacent an inflow or other region where the flow rate of said fluid is highest.
  • the fluid to be water
  • the stream of fluid to be provided by a pump
  • the chemical dispenser to be positionable, in use, adjacent an outflow from the pump, alternatively for the chemical dispenser to be connectable to an outflow of the pump.
  • a further aspect of this invention provides for the chemical dispenser to be adapted to dispense swimming pool chemicals.
  • a further feature according to this aspect of the invention provides for one of the swimming pool chemicals to be chlorine, and still further for one of the swimming pool chemicals to be chlorine in a solid form, preferably in a granular powder or tablet form.
  • FIG.1 is a sectional side view of a chemical dispenser according to the invention.
  • a chemical dispenser is indicated generally by reference numeral (1 ).
  • the chemical dispenser (1) comprises an open-ended tube (2) having a portion (3) along its length of reduced cross-section, an inlet (11) and an outlet (12).
  • the chemical dispenser (1 ) includes a receiving formation (4) in the form of a screw-threaded cap.
  • One end of the screw-threaded cap (4) is sized to receive a complementarily threaded chemical receptacle (5) suitable for storing a supply of a desired chemical, in this embodiment swimming pool chemicals in granular or tablet form.
  • the receiving formation (4) is in flow communication with the open-ended tube (2) by means of two flow passages, namely an inlet flow passage (6) and an outlet flow passage (7).
  • the inlet flow passage (6) is connected to the open-ended tube (2) at an area of maximum cross-section
  • the outlet flow passage (7) is connected to the open-ended tube at the area of reduced cross-section (3).
  • the inlet flow passage (6) has a regulating valve (8) located partway along its length for controlling a flow of fluid through the flow passage.
  • the regulating valve (8) is a butterfly valve or, alternatively, a ball valve.
  • the regulating valve (8) has an elongate lever (9) connected thereto to facilitate convenient adjustment of the valve position by a user of the chemical dispenser (1).
  • a float (10) is connected to the open-ended tube (2) at a position remote from the receiving formation (4) and at the position (3) of a minimum cross-section.
  • the chemical dispenser (1 ) is located in a body of fluid such as a swimming pool (not shown).
  • the inlet (11) of the open-ended tube (2) is connected to an outlet of the swimming pool by means of a flexible hose (not shown) and the chemical dispenser (1) is allowed to float freely in the body of water in which it is suspended by the float (10).
  • a float 10
  • the pressure differential which is created causes water to flow through the inlet flow passage (6) past the regulating valve (8) and into the chemical receptacle (5) operatively secured to the receiving formation (4).
  • Water entering the chemical receptacle (5) causes the chlorine in the receptacle to be dissolved and carried through the outlet flow passage (7) back into the open-ended tube at the area of a minimum a cross-section and through the outlet (12) of the open-ended tube into the body of fluid.
  • the chemical dispenser (1) may have a differently shaped open-ended tube (2) or fluid inlet flow passage (6). Further, the chemical dispenser (1) may be secured to the opening of a pipe through which the fluid is pumped, by means of an elastomeric member (not shown) such as a rubber band.
  • the regulating valve (8) may be dispensed with altogether in applications where are control of the rate of release of the desired chemical into the body of fluid is not required.
  • the supply of the desired chemical in the chemical receptacle may be4 in liquid form, as opposed to granular or tablet form.
  • the invention therefore provides a chemical dispenser for conveniently dispensing dosages of a desired chemical into a fluid stream.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (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)
  • Chemical Kinetics & Catalysis (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Nozzles (AREA)

Abstract

L'invention concerne un distributeur chimique destiné à distribuer un produit chimique désiré dans un flux de fluide. Le distributeur comprend ce qui suit: un tube à extrémité ouverte délimitant un passage de flux, le tube ayant une partie à coupe transversale réduite sur toute sa longueur, une formation réceptrice coopérant avec un réceptacle à produits chimiques destiné à stocker le produit chimique désiré, et des passages d'entrée et de sortie assurant la communication fluidique entre le tube et le réceptacle de produits chimiques lorsqu'il est fixé de manière fonctionnelle à la formation réceptrice. Le passage de sortie est en communication fluidique avec le tube dans la zone à coupe transversale réduite de celui-ci.
PCT/IB2001/000020 2000-01-14 2001-01-11 Distributeur chimique Ceased WO2001051420A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001225404A AU2001225404A1 (en) 2000-01-14 2001-01-11 Chemical dispenser

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA200000147 2000-01-14
ZA2000/0147 2000-01-14

Publications (2)

Publication Number Publication Date
WO2001051420A2 true WO2001051420A2 (fr) 2001-07-19
WO2001051420A3 WO2001051420A3 (fr) 2002-01-10

Family

ID=25588587

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2001/000020 Ceased WO2001051420A2 (fr) 2000-01-14 2001-01-11 Distributeur chimique

Country Status (2)

Country Link
AU (1) AU2001225404A1 (fr)
WO (1) WO2001051420A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1284240A1 (fr) * 2001-08-07 2003-02-19 King Technology, Inc. Système de dosage

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4662387A (en) * 1985-10-03 1987-05-05 King Lloyd H Sr Inline dispersal valve
US4789003A (en) * 1985-11-07 1988-12-06 Costa Norman J Water treatment apparatus
US4691732A (en) * 1986-08-01 1987-09-08 Jandy Industries, Inc. Pool chlorinator
US5076315A (en) * 1990-07-23 1991-12-31 King Joseph A Dispersal valve and canister
US5225074A (en) * 1992-08-28 1993-07-06 Philip L. Leslie Automatic swimming pool chlorinator
US5498333A (en) * 1994-06-02 1996-03-12 Canther; David M. Cover and lid with sealably enclosed gasket for swimming pool
US6200487B1 (en) * 1997-11-05 2001-03-13 Zodiac Pool Care, Inc. In-line, in-pool water purification system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1284240A1 (fr) * 2001-08-07 2003-02-19 King Technology, Inc. Système de dosage
US6814095B2 (en) 2001-08-07 2004-11-09 King Joseph A Dose system
AU785158B2 (en) * 2001-08-07 2006-10-05 King Technology, Inc. Dose system

Also Published As

Publication number Publication date
WO2001051420A3 (fr) 2002-01-10
AU2001225404A1 (en) 2001-07-24

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