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WO2002016705A1 - Procede et dispositif pour doser un agent actif dans de l'eau de chasse d'installations sanitaires - Google Patents

Procede et dispositif pour doser un agent actif dans de l'eau de chasse d'installations sanitaires Download PDF

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Publication number
WO2002016705A1
WO2002016705A1 PCT/CH2000/000445 CH0000445W WO0216705A1 WO 2002016705 A1 WO2002016705 A1 WO 2002016705A1 CH 0000445 W CH0000445 W CH 0000445W WO 0216705 A1 WO0216705 A1 WO 0216705A1
Authority
WO
WIPO (PCT)
Prior art keywords
siphon
active ingredient
water
mixing chamber
metering
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/CH2000/000445
Other languages
German (de)
English (en)
Inventor
Hans-Jörg Studer
Markus Ehrensperger
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.)
HTS International Trading AG
CWS International AG
Original Assignee
HTS International Trading AG
CWS International AG
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 HTS International Trading AG, CWS International AG filed Critical HTS International Trading AG
Priority to AU2000264229A priority Critical patent/AU2000264229A1/en
Priority to DE50014715T priority patent/DE50014715D1/de
Priority to EP00951179A priority patent/EP1311730B1/fr
Priority to PCT/CH2000/000445 priority patent/WO2002016705A1/fr
Publication of WO2002016705A1 publication Critical patent/WO2002016705A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D9/00—Sanitary or other accessories for lavatories ; Devices for cleaning or disinfecting the toilet room or the toilet bowl; Devices for eliminating smells
    • E03D9/02—Devices adding a disinfecting, deodorising, or cleaning agent to the water while flushing
    • E03D9/03—Devices adding a disinfecting, deodorising, or cleaning agent to the water while flushing consisting of a separate container with an outlet through which the agent is introduced into the flushing water, e.g. by suction ; Devices for agents in direct contact with flushing water
    • E03D9/033—Devices placed inside or dispensing into the cistern
    • E03D9/038—Passive dispensers, i.e. without moving parts

Definitions

  • the present invention relates to a method according to the preamble of claim 1 and an apparatus according to claim 3.
  • Rinse water too Active substance is drawn in from a cup-shaped container via a siphon, which is fed like a bird bath from a reservoir. The bird bath begins to replenish the active ingredient while the rinsing water is pouring out and fills the cup-shaped container within a short time interval. The active ingredient is diluted via the connecting line by water flowing back into the container during a rinsing process. This dilution is therefore dependent on the amount of water and thus on the water pressure in the flushing line. In order to take into account different supply pressures, the shut-off valve is provided in the connecting line to act as a throttle.
  • a disadvantage of this arrangement is the lack of a safety device which prevents an outflow through the device in the event of an overpressure, for example due to an impeded proper drainage of the rinsing water. If, on the other hand, the system is designed to be closed, as shown in the exemplary embodiment, ie if the space above the cup-shaped container is not connected to the atmosphere, then inadmissible pressure fluctuations occur which impair metering of the active ingredient, if not make it impossible.
  • the dilution of the active ingredient depends on the pressure fluctuations in the rinse water; the amount of water that flows back into the cup-shaped container is fundamentally not constant.
  • the rapid replenishment of active ingredient means that a relatively large amount of active ingredient is used when the toilet is used repeatedly for a short time, especially in urinals.
  • the dosage should be optimal, ie the active ingredient must prevent unwanted deposits, especially those made of lime, and also act as a subtle deodorant.
  • An exchange of the storage container should only be necessary at intervals of several months, even in the case of a frequently used toilet or urinal in public facilities. If the sanitary facility is used for a short time should not unnecessarily increase the volume of active ingredient consumed.
  • liquid active ingredient to be used should therefore be freely selectable, which means it can be wetting, oil-containing or highly viscous, in any case it must experience a reproductive dosage in the device.
  • the dosage achievable with the features of claim 1 can be reproducibly carried out in the accuracy of a single liquid plug and can be empirically set or configured in such a way that when the sanitary installation is used repeatedly for a short time, only a minimum of active ingredient is consumed.
  • a device suitable for carrying out the method is characterized by the features of claim 3.
  • the tangential introduction of the water according to claim 2 causes its swirling and thus its mixing with the active ingredient.
  • the embodiment according to claim 4 is the preferred practical embodiment of the teaching according to claim 2.
  • a tapering of the cross section of the passage serves to increase the pressure and improves the mixing in the metering space.
  • An easily replaceable installation of the metering needle according to claim 6 allows it to be cleaned or replaced in the event of incrustations or the crystallization of the active ingredient.
  • the dimensioning specifications, claim 7, represent guide values for the metering needle and allow these to be adapted to the viscosity of the active ingredient
  • the design of the lower end of the metering needle according to claim 8 is also favorable for wetting liquids and ensures reproducible metering.
  • the two-part construction of the siphon according to claim 9 allows the mixing chamber to be cleaned easily and completely, for example also in a washing machine.
  • the overflow protection specified in claim 10 is particularly useful in the case of high pressure fluctuations in the line network and in the simplest case is designed as a float valve.
  • FIG. 2 shows the device of FIG. 1 in a side view
  • FIG. 3 shows the device according to FIGS. 1 and 2, installed in three differently installed urinals
  • FIGS. 1 and 2 shows the device according to FIGS. 1 and 2 installed in three differently installed toilets
  • FIG. 6 shows the lower part of the device according to FIG. 5 with its metering space and the siphon located next to it
  • a device for supplying active ingredient in sanitary facilities is designated 100.
  • a storage container 2 can be seen, with its bottle neck 6 protrudes into a mixing chamber 3.
  • the mixing chamber 3 is ⁇ sealed by a removable cover.
  • a connecting piece 4 can be seen on a lowering part 12, which is provided for connecting a connecting line to a sanitary installation.
  • the aforementioned parts are provided on a base plate 8 with a support 9 and lateral jaws 10; In the upper part of the base plate 8 there are two openings 11 which are used to fasten the device 100 on a wall.
  • the first illustration in FIG. 3 shows how the active substance liquid is added to the feed 1 after a cistern 50 through a branch line 5; the second illustration has a conventional automatic flush valve 80 instead of the flushing cistern.
  • the liquid is introduced into the feed 1 via the cistern, while the flushing process is triggered manually via a flush button 90.
  • a closure cap 7 with a dosing nozzle is screwed onto the bottle neck 6, onto the outer thread 6, on the storage container 2 arranged overhead.
  • the sealing cap 7 is a cap 3 is inserted into the recessed ⁇ central opening.
  • a dosing needle 13 is inserted in the dosing nozzle of the closure cap 7 and has its own liquid passage 14 for the active substance A stored in the storage container 2.
  • the metering needle 13 which is cylindrical in itself, has a chamfer 15 which tapers upwards and merges into a notch 16 and serves to allow air to pass into the reservoir 2.
  • the lower outflow opening 14u opens into a cylindrical recess 17, which in turn is located in a flat bevel 18.
  • the dosing nozzle of the closure cap 7 is kept liquid-tight in the lid 3 ⁇ by a clamping seal 19.
  • the bevel 18 of the metering needle 13 projects into a lowered metering chamber 27, which is laterally connected to a siphon 25 via a passage 28.
  • the siphon 25 in turn has side edges 26 and is closed by a removable cover 24 and can therefore be easily cleaned if necessary.
  • Siphon 25 ends on the left in a straight siphon outlet 4 ⁇ , at the end of which a sealing ring (O-ring) 4 * is arranged and on which the connecting piece 4 (Fig. 2) is pushed.
  • a float 21 with a sealing washer 33 and a central guide pin.
  • the float 21 rests on support strips 22 in the normal operating state and is pressed onto a valve seat 20 when the fill level is too high, for example due to an excessively high pressure, and tightly closes a bore 23 in the cover 3.
  • the overflow protection formed in this way can be dispensed with in cases with safe pressure conditions in the sanitary facility.
  • the bore 23 is used for air exchange during the metering process; this is independent of fluctuations in air pressure.
  • the outflow bore 31 can be seen, which is part of the siphon outlet 4.
  • the passage 28 from the siphon 25 to the metering chamber 27 can also be seen.
  • the tangentially configured passage 28 also contributes in the direction of the arrow when water flows in H 2 0 denotes an optimal mixture with the active ingredient present in the dosing chamber 27.
  • the shape of the passage 28 causes an increase in the negative pressure in the metering space 27, so that it is completely emptied.
  • FIG 7a shows how the dosing space 27 is filled dropwise with active substance A via the liquid passage 14. Air flows through the bore 23 in the cover 3 cf. 5, into the mixing container 3 and over the air inflow 15 ⁇ until the dosing space is filled, ie until the active ingredient A prevents inflow of air in the air inflow 15 ⁇ .
  • Notch 16 two bubbles B drawn; they represent the end of the metering at the predetermined level N 0. The metering is therefore volumetric with high reproducibility and is independent of the atmospheric pressure.
  • This dosing which is to be called the normal case, occurs when there are longer time intervals between the individual rinsing processes, i.e. in practice about 10 minutes.
  • FIG. 7b As soon as a rinsing process is triggered after the dosing, the situation according to FIG. 7b arises, ie the water flowing in via the connecting line 5 and the connecting piece 4, FIG. 4 mixes with the active ingredient A to form a solution (H 2 O) s at the Ni level.
  • the dilution of the active ingredient A can be predetermined by means known per se by adjusting the pressure of the refluxing water and thus the level Ni. If the rinsing process takes place prematurely, ie the active substance A could not fill the metering space 27, partial filling occurs, only with water, as shown in FIG. 7c.
  • the level N 2 of the water is lower by the full amount of the metering space 27.
  • the dosage shown which is dependent on the interval of the winding operations, is very expedient and environmentally friendly. It is obvious that there is no need for cleaning in the case of immediately successive winding operations, which usually has a low need for cleaning in short succession and a large need for longer interruptions.
  • the relatively large mixing chamber 3 prevents an outflow of water through the bore 23, FIG. 5, even in the event of pressure fluctuations and excess pressures in the water supply network. 5, the float 21 comes into action according to FIG. 5 and prevents flooding by sealing the mixing chamber 3 with its upper sealing disk 33.
  • the subject matter of the invention is distinguished by its simplicity and operational reliability and, with a storage volume of 0.5 1, is functional for at least three months even with intensive use in public toilets.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Water Supply & Treatment (AREA)
  • Bidet-Like Cleaning Device And Other Flush Toilet Accessories (AREA)

Abstract

L'invention concerne un dispositif exclusivement hydromécanique (100), économique, présentant un siphon (25) installé dans un évidement (12) d'une chambre de mélange (3) dont le remplissage en agent actif liquide (A) est assuré par une aiguille de dosage (13) placée au niveau d'un réservoir de stockage (2). Dès l'actionnement de la chasse, une faible quantité d'eau de chasse s'écoule, par l'intermédiaire d'une conduite de raccordement (5), dans la chambre de mélange (3), où elle se mélange avec l'agent actif dosé (A) puis, après la chute de pression dans la conduite d'eau de chasse, pénètre dans cette dernière par l'intermédiaire du siphon (25) pour imprégner d'agent actif (A) l'urinoir ou les toilettes. Ce dispositif (100) dose l'agent actif (A) avec une très grande précision et ne nécessite pas d'énergie auxiliaire externe. Il est très respectueux de l'environnement et ne nécessite pas d'entretien, même après des mois d'usage intensif, si ce n'est le remplacement du réservoir de stockage contenant l'agent actif.
PCT/CH2000/000445 2000-08-22 2000-08-22 Procede et dispositif pour doser un agent actif dans de l'eau de chasse d'installations sanitaires Ceased WO2002016705A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AU2000264229A AU2000264229A1 (en) 2000-08-22 2000-08-22 Method and device for dosing an active ingredient in the flushing water of sanitary installations
DE50014715T DE50014715D1 (de) 2000-08-22 2000-08-22 Verfahren und vorrichtung zur dosierung von wirkstoff im spülwasser von sanitäranlagen
EP00951179A EP1311730B1 (fr) 2000-08-22 2000-08-22 Procede et dispositif pour doser un agent actif dans de l'eau de chasse d'installations sanitaires
PCT/CH2000/000445 WO2002016705A1 (fr) 2000-08-22 2000-08-22 Procede et dispositif pour doser un agent actif dans de l'eau de chasse d'installations sanitaires

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CH2000/000445 WO2002016705A1 (fr) 2000-08-22 2000-08-22 Procede et dispositif pour doser un agent actif dans de l'eau de chasse d'installations sanitaires

Publications (1)

Publication Number Publication Date
WO2002016705A1 true WO2002016705A1 (fr) 2002-02-28

Family

ID=4358117

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH2000/000445 Ceased WO2002016705A1 (fr) 2000-08-22 2000-08-22 Procede et dispositif pour doser un agent actif dans de l'eau de chasse d'installations sanitaires

Country Status (4)

Country Link
EP (1) EP1311730B1 (fr)
AU (1) AU2000264229A1 (fr)
DE (1) DE50014715D1 (fr)
WO (1) WO2002016705A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1178912A (en) 1915-07-29 1916-04-11 Claude Victor Fulton Disinfecting and deodorizing device for sanitary flush apparatus.
DE1609279A1 (de) * 1962-09-11 1970-04-16 Wilhelm Teschner Vorrichtung fuer die selbsttaetig dosierte Hinzufuegung von fluessigen Zugabemittelnzu in Intervallen stroemenden Fluessigkeiten
US4916760A (en) * 1988-10-24 1990-04-17 Arie Shahar Dispensing device
EP0399917A1 (fr) * 1989-05-26 1990-11-28 Nigiko S.A. Assainisseur perfectionné
EP0579581A1 (fr) 1992-07-14 1994-01-19 Gianpietro Lenzetti Ensemble électronique pour délivrer de manière contrôlée des liquides désinfectants et similaires dans der appareils sanitaires en général

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1178912A (en) 1915-07-29 1916-04-11 Claude Victor Fulton Disinfecting and deodorizing device for sanitary flush apparatus.
DE1609279A1 (de) * 1962-09-11 1970-04-16 Wilhelm Teschner Vorrichtung fuer die selbsttaetig dosierte Hinzufuegung von fluessigen Zugabemittelnzu in Intervallen stroemenden Fluessigkeiten
US4916760A (en) * 1988-10-24 1990-04-17 Arie Shahar Dispensing device
EP0399917A1 (fr) * 1989-05-26 1990-11-28 Nigiko S.A. Assainisseur perfectionné
EP0579581A1 (fr) 1992-07-14 1994-01-19 Gianpietro Lenzetti Ensemble électronique pour délivrer de manière contrôlée des liquides désinfectants et similaires dans der appareils sanitaires en général

Also Published As

Publication number Publication date
DE50014715D1 (de) 2007-11-22
EP1311730A1 (fr) 2003-05-21
EP1311730B1 (fr) 2007-10-10
AU2000264229A1 (en) 2002-03-04

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