EP2853739A1 - Liquid dosing device propelled by water pressure - Google Patents

Liquid dosing device propelled by water pressure Download PDF

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Publication number
EP2853739A1
EP2853739A1 EP14075061.3A EP14075061A EP2853739A1 EP 2853739 A1 EP2853739 A1 EP 2853739A1 EP 14075061 A EP14075061 A EP 14075061A EP 2853739 A1 EP2853739 A1 EP 2853739A1
Authority
EP
European Patent Office
Prior art keywords
liquid
reservoir
bell
shut
float
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.)
Withdrawn
Application number
EP14075061.3A
Other languages
German (de)
English (en)
French (fr)
Inventor
Gerrit Jan Vink
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
Publication of EP2853739A1 publication Critical patent/EP2853739A1/en
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/02—Stopping, starting, unloading or idling control
    • F04B49/025—Stopping, starting, unloading or idling control by means of floats
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B13/00—Pumps specially modified to deliver fixed or variable measured quantities
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B13/00—Pumps specially modified to deliver fixed or variable measured quantities
    • F04B13/02—Pumps specially modified to deliver fixed or variable measured quantities of two or more fluids at the same time
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms

Definitions

  • a second liquid for example consisting of automatically dosed medicines or disinfectants
  • a dosing device is used that is connected to a supply line or a reservoir with the primary liquid.
  • Some dosing devices operate using electricity and electronics. An amount of the primary liquid is measured as exactly as possible and next, by means of programmed electronics, the desired amount of the second liquid is added.
  • Both types of machines are expensive, complex and also have the disadvantage that the second liquid, sometimes an aggressive medicine or disinfectant, mixes with the first liquid in the device in such a place that the mixture comes in contact with the vulnerable parts of the dosing pump sometimes causing damage to the device.
  • the goal of the invention is to develop a dosing device that does not have these disadvantages.
  • this goal is reached by providing the machine, consisting of a reservoir that is connected to the water pipes, with a device that ensures that the reservoir is filled with a measured amount of the primary liquid. By emptying and refilling this reservoir each time a specific amount of liquid is obtained that is used for application.
  • the machine is also provided with a device that can measure a specific amount of the second liquid and can add it to the measured amount of primary liquid described before, so the mixture can be applied.
  • One method to measure a specific amount of the primary liquid is to place a bell in the reservoir, which sits underneath not on the bottom of the reservoir, but remains free thereof.
  • a bell In the bell is a float.
  • the supply of water, which takes place on the inside of the bell, is closed off by the float as soon as the liquid has reached the desired level in the reservoir.
  • the level of the liquid outside the bell will drop first and not under the bell. This is due to the fact that air is not allowed under the bell.
  • air will be allowed there and the bell will empty and the float will open the liquid supply again after which the process repeats itself.
  • Another method to measure a specific amount of primary liquid is to place a tube around the liquid supply at the top in the reservoir, in which a float can move up and down.
  • the dosing of the second liquid to be added can take place as follows.
  • a narrow passage which is smaller than the opening to the reservoir, is placed in the supply line just before the opening in the reservoir.
  • the shape can also be chosen in such a way that a water jet air pump is formed there.
  • the reservoir has been provided with a shut-off outside and inside the bell.
  • shut-offs are operated by the pressure differences in the above described branch, so when low pressure or a partial vacuum occurs with the filling, the shut-off outside the bell is closed and the shut-off inside the bell is opened. This way air can escape and no overpressure occurs inside the bell. Also liquid can not flow from the reservoir during the filling, so each time the liquid that has to be measured will be determined accurately. As soon as the liquid supply to the reservoir is closed, the overpressure in the branch will close the shut-off outside the bell and open the shut-off inside the bell, so liquid can flow from the reservoir and air will not be allowed underneath the bell.
  • the reservoir has been provided with a shut-off in the outlet opening of the reservoir, which is operated by the pressure differences in the above-described branch, so when low pressure or a partial vacuum occurs with the filling, the shut-off is closed.
  • a shut-off in the outlet opening of the reservoir, which is operated by the pressure differences in the above-described branch, so when low pressure or a partial vacuum occurs with the filling, the shut-off is closed.
  • the overpressure in the branch will open the shut-off, so the measured amount of liquid can flow from the reservoir.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Loading And Unloading Of Fuel Tanks Or Ships (AREA)
  • Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)
EP14075061.3A 2013-09-26 2014-09-19 Liquid dosing device propelled by water pressure Withdrawn EP2853739A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL1040412A NL1040412C2 (nl) 2013-09-26 2013-09-26 Vloeistofdoseerinrichting aangedreven door de druk van de waterleiding.

Publications (1)

Publication Number Publication Date
EP2853739A1 true EP2853739A1 (en) 2015-04-01

Family

ID=50031447

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14075061.3A Withdrawn EP2853739A1 (en) 2013-09-26 2014-09-19 Liquid dosing device propelled by water pressure

Country Status (2)

Country Link
EP (1) EP2853739A1 (nl)
NL (1) NL1040412C2 (nl)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3889429A1 (en) * 2020-04-03 2021-10-06 Hydro Systems Europe Ltd. Liquid dispenser comprising piezoelectric detector

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2222823A (en) * 1938-03-10 1940-11-26 Fluidpoise Mfg Company Inc Pumping apparatus
DE1528444A1 (de) * 1965-02-16 1969-07-10 Keller Kg Wilhelm Druckspeicheranlage zur Foerderung von Fluessigkeiten
FR2565158A1 (fr) * 1984-05-30 1985-12-06 Hedrich Vakuumanlagen Wilhelm Installation de coulee pour le traitement d'une matiere plastique
EP0885357A1 (fr) 1996-03-07 1998-12-23 Societe Civile De Recherche ODY Pompe doseuse
WO2001066943A1 (en) * 2000-03-10 2001-09-13 The Water Corporation Chemical metering pump
US20090130532A1 (en) * 2006-02-13 2009-05-21 Nidec Sankyo Corporation Mixing Pump Device and Fuel Cell

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2222823A (en) * 1938-03-10 1940-11-26 Fluidpoise Mfg Company Inc Pumping apparatus
DE1528444A1 (de) * 1965-02-16 1969-07-10 Keller Kg Wilhelm Druckspeicheranlage zur Foerderung von Fluessigkeiten
FR2565158A1 (fr) * 1984-05-30 1985-12-06 Hedrich Vakuumanlagen Wilhelm Installation de coulee pour le traitement d'une matiere plastique
EP0885357A1 (fr) 1996-03-07 1998-12-23 Societe Civile De Recherche ODY Pompe doseuse
WO2001066943A1 (en) * 2000-03-10 2001-09-13 The Water Corporation Chemical metering pump
US20090130532A1 (en) * 2006-02-13 2009-05-21 Nidec Sankyo Corporation Mixing Pump Device and Fuel Cell

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3889429A1 (en) * 2020-04-03 2021-10-06 Hydro Systems Europe Ltd. Liquid dispenser comprising piezoelectric detector
US11773841B2 (en) 2020-04-03 2023-10-03 Hydro Systems Europe Ltd. Liquid dispenser comprising piezoelectric detector
US12129844B2 (en) 2020-04-03 2024-10-29 Hydro Systems Europe Ltd. Liquid dispenser comprising piezoelectric detector

Also Published As

Publication number Publication date
NL1040412C2 (nl) 2015-03-30

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