CN102757116A - Improved control device - Google Patents
Improved control device Download PDFInfo
- Publication number
- CN102757116A CN102757116A CN2012102534057A CN201210253405A CN102757116A CN 102757116 A CN102757116 A CN 102757116A CN 2012102534057 A CN2012102534057 A CN 2012102534057A CN 201210253405 A CN201210253405 A CN 201210253405A CN 102757116 A CN102757116 A CN 102757116A
- Authority
- CN
- China
- Prior art keywords
- water
- storage tank
- flow
- fluid
- sterilant
- 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.)
- Pending
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Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D7/00—Control of flow
- G05D7/01—Control of flow without auxiliary power
- G05D7/0186—Control of flow without auxiliary power without moving parts
-
- 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
- C02F1/003—Processes for the treatment of water whereby the filtration technique is of importance using household-type filters for producing potable water, e.g. pitchers, bottles, faucet mounted devices
-
- 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
- C02F1/006—Water distributors either inside a treatment tank or directing the water to several treatment tanks; Water treatment plants incorporating these distributors, with or without chemical or biological tanks
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- 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
-
- 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
- C02F2303/00—Specific treatment goals
- C02F2303/18—Removal of treatment agents after treatment
- C02F2303/185—The treatment agent being halogen or a halogenated compound
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Physics & Mathematics (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Water Treatment By Sorption (AREA)
- Flow Control (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The invention provides a flow regulator for controlled gravity flow of fluid comprising: - a flow control reservoir adapted to discharge the required volume of fluid and comprising at least one inlet for entry of the fluid into the reservoir,- at least one siphon discharge operatively connected to the flow control reservoir and adapted to control the flow rate of the fluid from the reservoir. The flow regulator is particularly suitable for the provision of control over the flow of water in water purification systems, especially gravity flow water purification devices for the purification of water for domestic consumption.
Description
The application divides an application, and the applying date of its female case is that February 6, application number in 2004 are 200480004545.4, and name is called " improved opertaing device ".
Technical field
The present invention relates to a kind of regulator, in particular to a kind of setter that is used for the controlled release of fluid under gravity flowage.This system can be used in combination with the purification system such as sterilant release system (for example halogenated resin or chlorinated tablets), and said purification system requires fluid to contact with controlled active substance to carry out scavenging process.
Background technology
The purification system of the above-mentioned type requires pending fluid under gravity flowage, to pass clean unit, to implement contacting of flowing fluid and the fluid treatment media that is adopted.Need the gravity flowage in this system of control effectively to handle and purify realizing.
US4584106 has disclosed a kind of chlorination system that is used for chlorine is dispensed into as active substance heating bath cylinder or hot spring.This system regulates the dispensing rate of the flow of the water that passes through mixing chamber with control chlorine with valve or plug.The venturi tube and the baffle plate of combination are also regulated the flow through the water of mixing chamber, and control will be flowed out the granularity of the chlorination tablet of chlorination system.
US5089127 has disclosed a kind of chemical feeder, and this feeder comprises the cylindrical shell that is used to hold canister, and this canister is equipped with formation solid sterilization composition, the for example Losantin or the chloro isocyanurate of many particles or tablet form.The bottom and the lower end of little pot sidewall are carved with perforation, and the end portion of canister is positioned at open top inlet or ablation is preserved among the top in pond.Water gets into etch with pattern through inlet orifice and preserves the lower end in pond, and upwards march to the canister end portion in the solid sterilizing composition contact, with ablation and the solid sterilizing composition that dissolves in the canister end portion gradually.Inlet velocity through changing the water that impacts the sterilization composition in the canister end portion is controlled the amount of chemical that supply flow is crossed the water of feeder.In this system, inlet control valve is installed on the inlet ductwork to control the inlet flow rate that entering sterilization composition preserves the water in pond.
US6298871B1 discloses a kind of for example chemical feeder of chlorine bleach liquor of chemical processing agent that generates.This feeder comprises the shell that defines cavity, and the vertical centering control empty receptacle of elongation is positioned at the center of this cavity.The diapire and the substrate of container side wall are adjacent, and with the bottom of the isolated sidewall of inwall of shell in comprise a plurality of perforation.At least one hollow canister is included in this container slippingly, and said hollow canister has a plurality of perforation in the bottom of its substrate and sidewall.
Pipeline is provided, is used for the liquid of providing chemical treatment agent is transported to the chamber under the perforation in the canister, and is used for the flow that contains chemical processing agent is shifted out feeder.
The problem that equipment such as venturi tube and baffle plate has is the manual intervention of their needs rule and uniform flow rate control is not provided.On the other hand, more complicated electronic, electricity, wind-force and hydraulically powered system can be more reliable, but make and the maintenance costliness.
Summary of the invention
Target of the present invention provides a kind of regulator; Be used for the controlled release of fluid under gravity flowage; Height of no matter originating or volume, this setter simple economy does not also cause the acute variation or the turbulent flow of irregular control, flowing property, and brings complicacy for installation and maintenance.
Regulator of the present invention can be reequiped to connect easily or to be installed to any S.P. or source, the for example storage unit of supplied water under the gravity.
Regulator of the present invention provides the controlled release of fluid under gravity flowage; And can be with its repacking to unite use with the purification system based on gravity of any routine; Particularly those are for purifying and the contacting or system that the residence time is controlled of filtering purpose requirement water, for example the sterilant releasing unit.This make it possible to contact or discharge to purify active substance for example sterilant control keeping the even purification of water and the problem of having avoided clean lack or having loaded excessive active substance for pending water.
Regulator of the present invention does not need complicated electronic, electricity, wind-force or hydraulically powered flowrate control valve or plug, and does not need the repetition manual intervention.
Regulator compact of the present invention, being easy to be installed in anyly needs control from the gravity flowage system of the fluid flow rate that wherein flows through; Also consider the complexity problem in interruption of obstruction or fluid flow or the maintenance simultaneously.
The present invention provides a kind of fluidic regulator that is used under the controlled gravity flowage, and this setter comprises:
-flow control storage tank, this storage tank are suitable for discharging volume required fluid and comprise at least one using so that fluid gets into the import of this storage tank;
Parts are discharged in-at least one siphon, and these discharge parts effectively are connected with the flow control storage tank and are suitable for controlling the rate of flow of fluid from storage tank.
In regulator of the present invention, no matter the flow velocity or the volume of fluid origin are at first regulated rate of flow of fluid by the control storage tank of having selected size, realize the flow rate control of fs.Discharge parts through siphon and realize further flow control, this siphon discharge parts preferably comprise selected size in advance pipe fitting so that flow rate control.
More preferably; It is inverted " U " or " V " shape pipe fittings with two arms that parts are discharged in this siphon; The one of which end constitutes entrance end and the other end formation exit end; Entrance end is positioned at higher height and stretches into wherein in the bottom of control storage tank, and exit end places than the low position of entrance end to keep the difference of altitude between pipe fitting entrance end and the exit end.
Through the internal diameter size of control pipe fitting and the difference of altitude of import and outlet thereof, can regulate and flow through the flow rate of fluid that parts are discharged in siphon.This arm that can use inverted " U " with entrance end and exit end and " V " shape pipe fitting and this pipe fitting to have entrance end through each end at this pipe fitting is realized than the length weak point of the arm with exit end.
For obtaining the controlled flow of 10-200ml/min; Can with the control storage tank be sized to 50-500ml and tubular siphon discharge the diameter of parts can be in the 0.5-50mm scope, entrance end and the difference of altitude between the exit end that parts are discharged in simultaneously tubular siphon are 1-200mm.
And, consider that the resistance that is produced by tubular siphon discharge parts is also relevant with flow velocity, should select tubular siphon to discharge the material of parts based on the flow velocity of expectation.Preferable material is glass, plastics, polymkeric substance, pottery or metal.
Regulator of the present invention can comprise a plurality of independent control storage tanks.Under this situation, be the flow rate of fluid of control from each control storage tank, assemble independently siphon for each storage tank and discharge parts.
Preferably, assemble ventilation opening, reequip this ventilation opening so that the inside and outside air pressure in the storage tank is discharged the fluid back balance and guaranteed the reliable operation that the siphon adjusting is discharged each to this or each control storage tank.Tapping in the storage tank import that is used for the fluid entering provides this ventilation comparatively suitable.
Can regulator of the present invention be incorporated into the gravity feed system, for example gravity feed water purification system is effectively to purify the flow rates controlled that the water of various water purification mediums is flow through in expectation in this system.
Thereby the present invention also provides a kind of purification system, and this system comprises:
The source of-untreated fluid;
-with the regulator system that this source effectively is connected, this system comprises the flow control storage tank, this storage tank is suitable for discharging volume required fluid and comprises at least one with so that the import of fluid this storage tank of entering from this source; Parts are discharged at least one siphon, and these discharge parts effectively are connected with the flow control storage tank and are suitable for controlling the rate of flow of fluid from storage tank; Use so that fluid is discharged the outlet that parts leave from this siphon with at least one; And
-fluid purification the unit that effectively is connected with this outlet.
Clean unit contains the conventional scavenging agent of any powder, particle, resin or tablet form usually.Preferred scavenging agent comprises pentaiodide resin and trichlorocyanuric acid (TCCA).Also can use other conventional chlorine-releasing compound; For example DCCK, dichloroisocyanuric acid sodium, chloro tsp, Losantin, Lithium oxychloride, monochlor(in)ate ammonium, dichloride ammonium, [(single trichlorine)-four (single potassium dichloro)] five isocyanurates, 1; 3-two chloro-5; 5-dimethyl-idanotone, to sulfo group chlorinated amide toluene, trichloromelamine, N-chloramines, N-chlorine succinimide, N, N '-dichloro azo two amidines, N-chloracetyl-urea, N, N-dichloro azo two amidines, N-chloracetyl-urea, N; N-dichloro biurile, chloro Dyhard RU 100, and composition thereof.
Preferred purify that unit pack contains and the sterilant supply unit that parts effectively are connected is discharged in siphon, carry out controlled purification thereby make the fluid of controlled flow begin to contact with sterilant.
Preferably; Clean unit also comprises the mechanical component of the fluidic discharge of crossing in order to the adjusting germicidal treatment; The fluidic that is used for that more preferably germicidal treatment is crossed is discharged and is adjusted to downstream dwell chamber and further flows through purging system (to remove residual impurity); And final as the fluid collection of handling in bottom chamber, the outlet discharge that this fluid of handling can be from bottom chamber.
Regulator of the present invention is simple but effective in the control that realizes fluid flow rate.For being installed in and fixing the regulator that this can be integrated with any conventional clean unit, can be equipped with simple stationary installation.Also can this regulator removably be fixed on the inside of clean unit.
Description of drawings
Below in following as indefiniteness embodiment shown in the drawings, set forth regulator of the present invention in further detail, wherein:
Fig. 1 is the sectional view that comprises the tubbiness strainer of regulator of the present invention, and this strainer is used for purifying drinking water;
Fig. 2 is the sectional view that expression is used in the regulator in the tubbiness strainer of Fig. 1.
Embodiment
The present invention is specially adapted in water purification system the control in advance to discharge, in particular for purifying the gravity flowage water correction plant of domestic water.This equipment comprises a plurality of members usually and typically has five elementary cells, comprising:
(a) top chamber is used to store pending water.This chamber has prefilter usually, and carbon piece normally is to remove settling, organic impurity and cyst.
(b) sterilant delivery system, this system has chlorinated tablets usually, for example NaDCCA, TCCA, iodinated resin or other sterilant.This biocide delivery system receives by the water of gravity from top chamber.
(c) dwell chamber or residence time chamber, this chamber are that pathogenic agent and sterilant are treated time of together providing necessary, the target of pathogenic agent are killed realizing.
(d) purging system (normally activated carbon particle), this system receives from the water of dwell chamber and removes residual impurity, for example iodine, chlorine, THMS and analogue.
(e) bottom chamber, this chamber receive from purifying waste water of swabbing pig and are used for consumption.
The important factor of this gravity treating plant is the input water of the changeable flow that runs into of this system.Consider the duration of contact or the residence time based on the water that flows through, various members are different to the requirement of effective purification, importantly effectively the flow velocity in this equipment of control with realize expectation to water purification.Especially; Germicidal treatment in this system has harsh relation with the flow velocity of water through said sterilant delivery system; Because when water importantly should contact with sterilant and to pathogenic agent expect kill the time, the water of not expecting to flow through the sterilant delivery system contains the sterilant of the domestic safety boundary of part overshoot.
Regulator of the present invention can effectively be controlled the flow velocity of water, carries out the safer purification of pending water.
Among Fig. 1, the tubbiness strainer is made up of the top chamber that is used to store pending water (1).It is the prefilter (PF) of carbon piece that top chamber also is equipped with, and is used to remove settling and organic impurity and cyst.Make water flow by gravity into another chamber (2) that regulator (FR) is housed from prefilter (PF).Reequip this regulator, thereby volume of water and the flow velocity that flows through the water of prefilter (PF) no matter in the top chamber (1) make from the water of regulator (FR) and discharge with controlled amount and controlled speed.Regulator (FR) comprises the control storage tank, and the size of this storage tank is set so that the water of controlled volumetric flow rate flows out the control storage tank.Regulator (FR) further comprises siphon and discharges part (SDM), and this discharge part is the pipe fitting of a kind of inverted " U " shape, has with respect to outlet (OT) highly higher import (IN).The required flow rate that depends on expectation can be regulated the difference of altitude between import (IN) and the outlet (OT).The water with controlled flow velocity from regulator (FR) leaves outlet (OT) and flows through sterili-sation unit (3), and this unit is discharged into the sterilant of preliminary election dosage in the water.After this, the water that germicidal treatment is crossed flows to bottom chamber (5) through cleaning unit (4) under gravity.Treated water is collected in the bottom chamber (5) when need waiting the finally outlet of the discharging from bottom chamber (5) (DO) and discharges.
This regulator of the further diagram of Fig. 2 (FR).This regulator comprises control storage tank (CR), no matter gives the volume in the source of storage tank feed, the water of this storage tank storage controlled volume.The leaving of water that part (SDM) provides controlled quatity discharged in the pipeline siphon.Select the size of control storage tank (CR) and the diameter and the import/export height of tubular siphon discharge part (SDM) expectation of flow velocity to be controlled with realization.Can further reequip this regulator (FR) so that the controlled outflow of the water of part (SDM) only just takes place to discharge through tubular siphon from control storage tank (CR) when control storage tank (CR) is filled to the height of expectation.
Embodiment
The demonstration of regulating
Strainer shown in Fig. 1 is used to demonstrate the control to discharge, no matter the discrepancy in elevation in the top chamber (1).Get the flow (embodiment 1) that passes through the water of outlet (OT) from various height and the mensuration of 170mm-55mm in the top chamber (1).Except not having regulator (FR), repeat this test (Comparative Examples A) with the strainer shown in Fig. 1.The result is shown in Table 1.
The result is illustrated in regulator (FR) and exists down, and water flow velocity is independent of the drop in the top chamber.In Comparative Examples A, not like this just.Thereby regulator of the present invention is effectively eliminated from the association of the upstream flow rate variation that is fed to the sterilant divider the feasible sterilant of evenly carrying.
Claims (5)
1. a gravity charging household water cleaning system comprises untreated water source and is used for the clean unit at the water bactericide-release, is characterised in that this system comprises:
-selected the flow control storage tank of size, this storage tank to be suitable for discharging volume required water in advance and comprised at least one to use so that the inlet member that water gets into from the water source;
-discharge member with the siphon that said flow control storage tank effectively is connected; This member comprises that diameter is the pipe fitting of 0.5-50mm; This member is suitable for controlling the flow velocity from the water of said storage tank, makes it to be 10-200ml/min, and has the water out that effectively is connected with clean unit;
-it is characterized in that said clean unit comprises the sterilant supply unit that effectively is connected with siphon discharge parts; Thereby the fluid that makes controlled flow begins to contact with sterilant and carries out controlled purification, and said sterilant is the scavenging agent of powder, particle, resin or tablet form.
2. according to the water purification system of claim 1; Wherein said sterilant is selected from pentaiodide resin, trichlorocyanuric acid (TCCA), DCCK, dichloroisocyanuric acid sodium, chloro tsp, Losantin, Lithium oxychloride, monochlor(in)ate ammonium, dichloride ammonium, [(single trichlorine)-four (single potassium dichloro)] five isocyanurates, 1; 3-two chloro-5; 5-dimethyl-idanotone, to sulfo group chlorinated amide toluene, trichloromelamine, N-chloramines, N-chlorine succinimide, N; N '-dichloro azo two amidines, N-chloracetyl-urea, N, N-dichloro azo two amidines, N-chloracetyl-urea, N, N-dichloro biurile, chloro Dyhard RU 100 and composition thereof.
3. according to the water purification system of claim 1 or 2, wherein siphon discharge member comprises pipe fitting, and this pipe fitting is suitable for controlling the flow velocity from flow control storage tank to clean unit.
4. according to the water purification system of claim 3, wherein pipe fitting is an inverted U-shaped, has the inlet orifice in the flow control storage tank, the high position of outlet perforate that this inlet orifice is positioned at than is connected with clean unit.
5. according to each water purification system among the claim 1-4, wherein said system does not need complicated electronic, electricity, wind-force or hydraulically powered flowrate control valve or plug.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IN204/MUM/2003 | 2003-02-18 | ||
| IN204MU2003 | 2003-02-18 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2004800045454A Division CN1751279A (en) | 2003-02-18 | 2004-02-06 | Improved control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102757116A true CN102757116A (en) | 2012-10-31 |
Family
ID=32894031
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2004800045454A Pending CN1751279A (en) | 2003-02-18 | 2004-02-06 | Improved control device |
| CN2012102534057A Pending CN102757116A (en) | 2003-02-18 | 2004-02-06 | Improved control device |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2004800045454A Pending CN1751279A (en) | 2003-02-18 | 2004-02-06 | Improved control device |
Country Status (7)
| Country | Link |
|---|---|
| CN (2) | CN1751279A (en) |
| BR (1) | BRPI0407345B1 (en) |
| MX (1) | MXPA05008735A (en) |
| PL (1) | PL213012B1 (en) |
| RU (1) | RU2364912C2 (en) |
| WO (1) | WO2004074182A2 (en) |
| ZA (1) | ZA200505778B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ZA200606790B (en) * | 2004-03-19 | 2007-11-28 | Unilever Plc | Water purification system |
| PL1870381T3 (en) * | 2006-06-12 | 2009-12-31 | Unilever Nv | A biocide cartridge |
| EA016676B1 (en) * | 2007-01-12 | 2012-06-29 | Юнилевер Н.В. | Gravity-fed water purification method |
| CN102224111A (en) * | 2008-09-23 | 2011-10-19 | 荷兰联合利华有限公司 | Water purification device |
| EP2184263A1 (en) * | 2008-11-06 | 2010-05-12 | Unilever N.V. | Water purification device |
| AP2011005805A0 (en) | 2009-01-13 | 2011-08-31 | Access Business Group Int Llc | Gravity feed water treatment system. |
| PE20131023A1 (en) | 2010-05-31 | 2013-09-12 | Unilever Nv | A WATER PURIFICATION DEVICE |
| WO2012025343A1 (en) * | 2010-08-24 | 2012-03-01 | Unilever Nv | Water purification device comprising a gravity- fed filter |
| CN104870376B (en) | 2012-12-20 | 2016-11-23 | 荷兰联合利华有限公司 | Tablet composition for automatic-closing mechanism |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3999945A (en) * | 1974-08-30 | 1976-12-28 | Delta Scientific Corporation | Liquid analysis system |
| CN2076385U (en) * | 1990-02-26 | 1991-05-08 | 蔡晓明 | Speed and flow auto-controller for flowing off liquid condiment |
| US5037550A (en) * | 1988-12-05 | 1991-08-06 | Societe Pica - Produits Industriels Et Charbons Actifs | Biological contactor for purifying water to produce drinking water and associated control method |
| CN2277403Y (en) * | 1996-11-13 | 1998-04-01 | 刘飞 | Siphone chlorine dioxide sterilizer |
| WO1998049101A1 (en) * | 1997-04-24 | 1998-11-05 | Unisearch Limited | Oil from water separator |
| CN2461921Y (en) * | 2001-02-16 | 2001-11-28 | 徐国文 | Automatic sewage purifier |
| GB2374297A (en) * | 2001-04-11 | 2002-10-16 | Michael John Leigh Chapman | Dynamic sedimentation system |
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|---|---|---|---|---|
| CH689593A5 (en) * | 1995-03-16 | 1999-06-30 | Paul Schudel | Waste water treatment plant with sand filter suited for smaller flows |
| US6051140A (en) * | 1997-12-04 | 2000-04-18 | Perry; Cliff | Water decontaminating system and method |
-
2004
- 2004-02-06 PL PL377188A patent/PL213012B1/en unknown
- 2004-02-06 BR BRPI0407345-2A patent/BRPI0407345B1/en not_active IP Right Cessation
- 2004-02-06 MX MXPA05008735A patent/MXPA05008735A/en active IP Right Grant
- 2004-02-06 CN CNA2004800045454A patent/CN1751279A/en active Pending
- 2004-02-06 ZA ZA200505778A patent/ZA200505778B/en unknown
- 2004-02-06 WO PCT/EP2004/001184 patent/WO2004074182A2/en active Application Filing
- 2004-02-06 RU RU2005129120/28A patent/RU2364912C2/en not_active IP Right Cessation
- 2004-02-06 CN CN2012102534057A patent/CN102757116A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3999945A (en) * | 1974-08-30 | 1976-12-28 | Delta Scientific Corporation | Liquid analysis system |
| US5037550A (en) * | 1988-12-05 | 1991-08-06 | Societe Pica - Produits Industriels Et Charbons Actifs | Biological contactor for purifying water to produce drinking water and associated control method |
| CN2076385U (en) * | 1990-02-26 | 1991-05-08 | 蔡晓明 | Speed and flow auto-controller for flowing off liquid condiment |
| CN2277403Y (en) * | 1996-11-13 | 1998-04-01 | 刘飞 | Siphone chlorine dioxide sterilizer |
| WO1998049101A1 (en) * | 1997-04-24 | 1998-11-05 | Unisearch Limited | Oil from water separator |
| CN2461921Y (en) * | 2001-02-16 | 2001-11-28 | 徐国文 | Automatic sewage purifier |
| GB2374297A (en) * | 2001-04-11 | 2002-10-16 | Michael John Leigh Chapman | Dynamic sedimentation system |
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| Title |
|---|
| 刘九胜等: "自动同步双虹吸定量加氯装置处理医院污水", 《人民军医》 * |
| 方和: "双虹吸管恒量投氯工艺设计", 《哈铁科技通讯》 * |
| 曹恩广: "同步双虹吸自动加氯装置虹吸管径的设计", 《建筑技术通讯(给水排水)》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| PL377188A1 (en) | 2006-01-23 |
| RU2364912C2 (en) | 2009-08-20 |
| MXPA05008735A (en) | 2005-09-20 |
| BRPI0407345A (en) | 2006-01-10 |
| CN1751279A (en) | 2006-03-22 |
| ZA200505778B (en) | 2006-09-27 |
| BRPI0407345B1 (en) | 2015-08-18 |
| WO2004074182A3 (en) | 2004-10-21 |
| RU2005129120A (en) | 2006-02-10 |
| WO2004074182A2 (en) | 2004-09-02 |
| PL213012B1 (en) | 2012-12-31 |
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Application publication date: 20121031 |