WO2003078328A1 - Water purification apparatus - Google Patents
Water purification apparatus Download PDFInfo
- Publication number
- WO2003078328A1 WO2003078328A1 PCT/GB2003/000985 GB0300985W WO03078328A1 WO 2003078328 A1 WO2003078328 A1 WO 2003078328A1 GB 0300985 W GB0300985 W GB 0300985W WO 03078328 A1 WO03078328 A1 WO 03078328A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- water
- release means
- flow rate
- purification apparatus
- water purification
- Prior art date
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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
- C02F9/20—Portable or detachable small-scale multistage treatment devices, e.g. point of use or laboratory water purification systems
-
- 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
-
- 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
- C02F2209/05—Conductivity or salinity
-
- 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
- C02F2209/40—Liquid flow rate
-
- 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
- C02F2209/44—Time
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S210/00—Liquid purification or separation
- Y10S210/90—Ultra pure water, e.g. conductivity water
Definitions
- the present invention relates to the control of dispensing of water from water purification apparatus and units, particularly but not exclusively for laboratory water.
- Water purification units for use in laboratories have been devised that remove levels of contaminants to very low levels. They typically contain a variety of technologies that remove particles, bacteria, ionic species and organic molecules. Water is recirculated within the unit to maintain the highest purity.
- a valve When a user has required water he has typically opened a valve to dispense the amount of water required. A user will typically open the valve fully at first and partially close the valve as the amount of water dispensed approaches that required. This allows the user to make sure the amount of water does not exceed fill lines typically found on laboratory equipment.
- US Patent No 5925240 discloses an improved system of controlling the water output of the unit by varying the pump speed and/or the outlet valve's cross section in conjunction with a timer to give a desired amount of water.
- Pump speed is typically controlled by reducing the voltage applied to the pump and correlation between this voltage and water output can vary depending upon inlet water pressure, temperature, back pressure and any gas hold up. Valve throughput can also be affected by pressure and temperature.
- WO 01/27798 A discloses the use of a flow sensor to determine the amount of water dispensed by a deionization system and charge accordingly. It also includes a safety feature wherein the flow is halted if readings from the flow and pressure sensors indicate a missing/ failed nozzle.
- EP1134190A discloses a sensor fitted to a laboratory water purification unit which measures how much water has passed through the unit.
- a controller changes the pump speed between two speeds and opens a dispense valve to dispense an amount of water input into the units controller by the user.
- a water purification apparatus having an inlet and an outlet, and at least one water purification means thereinbetween, wherein the outlet includes at least a first release means and a second water release means, the first release means being operable at a first flow rate, and the second release means being operable at a second flow rate.
- the outlet may include further water release means.
- One suitable release means is a valve.
- the rate of release of water through the outlet can be controlled by a first flow rate, or a second flow rate, or a combination thereof; or further separate or conjoined flow rates if further water release means are used.
- the flow rate of each water release means could be the same or different to the flow rate of every other water release means.
- the first flow rate is different to the second flow rate.
- the water release means operate in parallel. Two or more means could in addition or alternatively operate in series.
- the water release means provide alternative flow paths for water through the outlet.
- each water release means is independently controllable from every other water release means.
- At least one water release means is operable at a relatively slow flow rate of generally up to 0.1 litre per minute, although this could of course be greater, for example up to 1.0 litre per minute, and at least one other water release means is operable at a relatively fast flow rate of, for example, up to 2 litres per minute.
- the operation and/or flow rate of at least one water release means is wholly or substantially dependant upon the operation and/or flow rate through at least one other water release means. More preferably, operation of a ⁇ faster" flow rate water means is dependent upon operation of a relatively slow flow rate water release means.
- the water release means are operable manually and/or automatically, and either separately or independently.
- the apparatus includes a control means for controlling the outlet flow and/or flow rate through all the release means.
- control means For example operation of the control means opens a first, preferably “slow” rate means, followed after a reasonable time period or flow by opening of a second "fast” rate means. This arrangement could be reversed at or near the end of the desired outflow.
- each water release means is dependent upon the amount or volume of water to be dispensed through the outlet.
- the apparatus includes one or more water pumps.
- the or each pump may be separately or integrally linked with one or more of the water release means, or at least to the means for controlling the water release through the outlet.
- the apparatus includes a recirculation system to provide recirculation around at least part of the apparatus of any water treated by the or one of the water purification means, but not immediately required by the outlet.
- a recirculation unit may include one or more pressure-sustaining means such as non-return valves to maintain outlet pressure.
- the apparatus may include one or more alarm means, such as a visual and/or aural alert, to provide a signal for confirmation and/or feedback to the operator of the flow rate of the outlet, and/or the flow rate of one or more of the water release means.
- alarm means such as a visual and/or aural alert
- the apparatus of the present invention may provide for the dispensing of water by any suitable arrangement based on time, volume, etc.
- the apparatus of the present invention allows the operator to pre-set the volume of desired water to be dispensed, and the apparatus automatically operates the or each relevant water release means to provide a controlled (but usually variable) flow rate.
- a method for dispensing water from a water purification apparatus having an inlet, an outlet, and at least one water purification means thereinbetween, the outlet including at least two water release means, a first release means being operable at a first flow rate, and at least a second water release means being operable at a second flow rate,
- the present water purification apparatus provides the operator with the ability to very accurately obtain an exact volume of water desired.
- the apparatus includes a control means, possibly with an associated control switch or button
- the user can preferably set the volume or amount of water desired, and the apparatus automatically controls the release means, and any included pump(s), to provide said amount exactly.
- the control means can be pre-programmed to calculate the precise rate of flow required through the or each relevant release means.
- At least one of the water release means provides a relatively slow flow rate, particularly, but not exclusively, useable at the beginning and end of a water dispensing operation, whilst the second water release means provides water at a fast flow rate, and is generally more used during the middle of the operation for dispersement of water.
- a unit 2 operates with feedwater being drawn into the unit 2 via an inlet and a solenoid valve, V3.
- the water passes through a series of purification steps and past sensors for temperature and resistivity before being dispensed to an outlet via two release valves VI and V2.
- the pump When water is not required, the pump recirculates the water to be purified through the purification steps maintaining it at the highest quality possible.
- a non return valve is included in the recirculation tubing to both prevent bypass of water to the outlet valves VI and V2 without it passing through the purification steps, and also to provide 1 a system pressure at which the water can be
- valve VI closing the pump will slow down followed by valve VI closing and finally valve V2 closing.
- the pump will continue to recirculate water around the loop.
- the use of the two valves and variation in pump speed allows a more controlled outlet measure as the amount of water approaches that required. As the water reaches the fill point of the vessel being filled, then the user is still able to stop the dispense without excessive water dispense. The user may also be able to reduce the flow by turning the switch in the opposite direction so that a slow drip is dispensed as the water level approaches the fill line typically found on glassware.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2003217003A AU2003217003A1 (en) | 2002-03-13 | 2003-03-07 | Water purification apparatus |
EP03712325A EP1483209A1 (en) | 2002-03-13 | 2003-03-07 | Water purification apparatus |
US10/507,166 US7578416B2 (en) | 2002-03-13 | 2003-03-07 | Water purification apparatus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0205893.1 | 2002-03-13 | ||
GBGB0205893.1A GB0205893D0 (en) | 2002-03-13 | 2002-03-13 | Water purification apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003078328A1 true WO2003078328A1 (en) | 2003-09-25 |
Family
ID=9932879
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB2003/000985 WO2003078328A1 (en) | 2002-03-13 | 2003-03-07 | Water purification apparatus |
Country Status (5)
Country | Link |
---|---|
US (1) | US7578416B2 (en) |
EP (1) | EP1483209A1 (en) |
AU (1) | AU2003217003A1 (en) |
GB (1) | GB0205893D0 (en) |
WO (1) | WO2003078328A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090134075A1 (en) * | 2005-07-30 | 2009-05-28 | Otv Sa | Control Apparatus for a Liquid Dispense System |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007015048A1 (en) | 2005-07-30 | 2007-02-08 | Otv Sa | Control apparatus for a liquid dispense system |
FR2896793B1 (en) * | 2006-01-27 | 2008-08-08 | Millipore Corp | SYSTEM AND METHOD FOR PURIFYING WATER |
CA2662490C (en) * | 2009-04-15 | 2016-07-19 | Klenzoid Company Limited | Polymer delivery system and method for waste water facility |
JP2013500544A (en) | 2009-07-24 | 2013-01-07 | ディジマーク コーポレイション | Improved audio / video method and system |
US20120285894A1 (en) | 2011-05-13 | 2012-11-15 | Frank Leslie Smiddy | System and method for the treatment of wastewater |
US9695070B2 (en) | 2011-10-27 | 2017-07-04 | Pentair Residential Filtration, Llc | Regeneration of a capacitive deionization system |
US8961770B2 (en) | 2011-10-27 | 2015-02-24 | Pentair Residential Filtration, Llc | Controller and method of operation of a capacitive deionization system |
US9010361B2 (en) | 2011-10-27 | 2015-04-21 | Pentair Residential Filtration, Llc | Control valve assembly |
US8671985B2 (en) | 2011-10-27 | 2014-03-18 | Pentair Residential Filtration, Llc | Control valve assembly |
US9637397B2 (en) | 2011-10-27 | 2017-05-02 | Pentair Residential Filtration, Llc | Ion removal using a capacitive deionization system |
US9255025B2 (en) | 2012-07-20 | 2016-02-09 | ProAct Services Corporation | Method for the treatment of wastewater |
US10105725B2 (en) | 2013-02-18 | 2018-10-23 | The Boeing Company | Fluid application device |
US9016530B2 (en) | 2013-05-03 | 2015-04-28 | The Boeing Company | Control valve having a disposable valve body |
US9095872B2 (en) * | 2013-07-26 | 2015-08-04 | The Boeing Company | Feedback control system for performing fluid dispensing operations |
US9757759B2 (en) | 2013-08-09 | 2017-09-12 | The Boeing Company | Method and apparatus for concurrently dispensing and fairing high viscosity fluid |
US10525603B2 (en) | 2013-08-22 | 2020-01-07 | The Boeing Company | Method and apparatus for exchanging nozzles and tips for a fluid dispensing system |
US20150064357A1 (en) | 2013-09-03 | 2015-03-05 | The Boeing Company | Tool for Applying a Fluid onto a Surface |
EP2995242B1 (en) | 2014-09-11 | 2023-11-15 | Hill-Rom S.A.S. | Patient support apparatus |
US9884329B2 (en) | 2015-03-19 | 2018-02-06 | The Boeing Company | Adhesive applicator having reversibly extensible first and second edges |
US20170189830A1 (en) * | 2016-01-06 | 2017-07-06 | John Markham Cody | System for desalinating saltwater |
CN107101033A (en) * | 2017-05-23 | 2017-08-29 | 芜湖美的厨卫电器制造有限公司 | Tap and its quantitative-outlet control device and method |
Citations (4)
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US5817231A (en) * | 1996-12-20 | 1998-10-06 | American Dryer Corporation | Water purifying and vending apparatus |
US5935441A (en) * | 1996-09-05 | 1999-08-10 | Millipore Corporation | Water purification process |
WO2001019957A2 (en) * | 1999-09-14 | 2001-03-22 | Chandler James W | System and method of controlling microorganism and biofilms |
EP1136447A1 (en) * | 2000-03-08 | 2001-09-26 | Barnstead Thermolyne Corporation | Water purifying apparatus and method for purifying water |
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US3991911A (en) * | 1973-09-07 | 1976-11-16 | American Beverage Control | Automatic drink dispensing apparatus having programming means |
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US6579445B2 (en) | 2001-06-01 | 2003-06-17 | Sartorius Ag | System for the production of laboratory grade ultrapure water |
-
2002
- 2002-03-13 GB GBGB0205893.1A patent/GB0205893D0/en not_active Ceased
-
2003
- 2003-03-07 EP EP03712325A patent/EP1483209A1/en not_active Withdrawn
- 2003-03-07 WO PCT/GB2003/000985 patent/WO2003078328A1/en not_active Application Discontinuation
- 2003-03-07 US US10/507,166 patent/US7578416B2/en active Active
- 2003-03-07 AU AU2003217003A patent/AU2003217003A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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US5935441A (en) * | 1996-09-05 | 1999-08-10 | Millipore Corporation | Water purification process |
US5817231A (en) * | 1996-12-20 | 1998-10-06 | American Dryer Corporation | Water purifying and vending apparatus |
WO2001019957A2 (en) * | 1999-09-14 | 2001-03-22 | Chandler James W | System and method of controlling microorganism and biofilms |
EP1136447A1 (en) * | 2000-03-08 | 2001-09-26 | Barnstead Thermolyne Corporation | Water purifying apparatus and method for purifying water |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090134075A1 (en) * | 2005-07-30 | 2009-05-28 | Otv Sa | Control Apparatus for a Liquid Dispense System |
US8257595B2 (en) * | 2005-07-30 | 2012-09-04 | VWS (UK) Limited | Control apparatus for a liquid dispense system |
Also Published As
Publication number | Publication date |
---|---|
US7578416B2 (en) | 2009-08-25 |
EP1483209A1 (en) | 2004-12-08 |
GB0205893D0 (en) | 2002-04-24 |
US20050127115A1 (en) | 2005-06-16 |
AU2003217003A1 (en) | 2003-09-29 |
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