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EP0266573A1 - Dispositif de pompage et de dosage de liquides volatils - Google Patents

Dispositif de pompage et de dosage de liquides volatils Download PDF

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Publication number
EP0266573A1
EP0266573A1 EP87114606A EP87114606A EP0266573A1 EP 0266573 A1 EP0266573 A1 EP 0266573A1 EP 87114606 A EP87114606 A EP 87114606A EP 87114606 A EP87114606 A EP 87114606A EP 0266573 A1 EP0266573 A1 EP 0266573A1
Authority
EP
European Patent Office
Prior art keywords
valve
shut
diaphragm pump
metering
line
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Withdrawn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
EP87114606A
Other languages
German (de)
English (en)
Inventor
Willfried Von Wittke
Werner Mussfeldt
Wolfgang Dr. Rer. Nat. Wagemann
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.)
Chemische Fabrik Dr Weigert GmbH and Co
Original Assignee
Chemische Fabrik Dr Weigert GmbH and Co
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 Chemische Fabrik Dr Weigert GmbH and Co filed Critical Chemische Fabrik Dr Weigert GmbH and Co
Publication of EP0266573A1 publication Critical patent/EP0266573A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
    • B67D7/06—Details or accessories
    • B67D7/76—Arrangements of devices for purifying liquids to be transferred, e.g. of filters, of air or water separators
    • B67D7/763—Arrangements of devices for purifying liquids to be transferred, e.g. of filters, of air or water separators of air separators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/04—Cleaning involving contact with liquid
    • B08B3/08—Cleaning involving contact with liquid the liquid having chemical or dissolving effect

Definitions

  • the invention relates to a device for conveying and metering liquids which form gases during storage and / or conveyance by chemical decomposition, by means of a membrane pump, which conveys the liquid from a reservoir essentially upwards to a pressurized, closed system.
  • Disinfectant liquids that consist of or contain solutions of peracetic acid, sodium hypochlorite and hydrogen peroxide are frequently used in the food and beverage industry. These solutions are conveyed from storage containers, eg transport canisters, by means of membrane pumps and fed into closed systems to be disinfected. Since these liquids constantly develop oxygen, gas bubbles are constantly formed in the delivery system, which impair the functionality of the diaphragm pump or an effective delivery prevent. The manufacturers of the diaphragm pumps suitable for this purpose therefore prescribe to bleed the delivery system and the pump if necessary. This makes regular dosing of the disinfectant impossible.
  • the invention is directed to a device of the type mentioned at the outset which makes manual venting unnecessary.
  • This object is achieved according to the invention by a device which, through a suction line, the lower end of which is immersed in the liquid and at the upper end of which the diaphragm pump is arranged, a return line arranged on the pressure side on or in the diaphragm pump, a first one arranged in the return line Shut-off valve and a delivery and metering line arranged on the pressure side of the diaphragm pump with a second shut-off valve arranged in the same and a metering valve provided at the end of the same, wherein the first and the second shut-off valve can be actuated alternately.
  • the first shut-off valve is time-controlled.
  • the second shut-off valve and the metering valve are preferably designed as check valves.
  • the device of the invention which uses commercially available components and is of simple construction, it is possible, for example in the start-up phase of a disinfection, to remove gas in the line system together with the liquid to be pumped from the system and to flush it back into the storage container by the first, Shut-off valve arranged in the return line is opened for a certain period of time and the second shut-off valve is closed for the same period of time.
  • the aggressive disinfectants get into the environment.
  • the drawing shows a storage container (1) with the liquid (2) to be pumped and / or metered.
  • a suction line (3) dips into the liquid at its lower end, at the upper end of which there is a diaphragm pump (6) equipped on the suction and pressure side with a check valve (4, 5) each.
  • the diaphragm pump can also be equipped with a pressure relief valve, not shown.
  • On the pressure side there is a delivery and metering line (7) on the diaphragm pump with a return line (8) branching off near the diaphragm pump.
  • a first shut-off valve (9) with an adjustable timing is arranged in the return line.
  • a check valve (10) and a suitably spring-loaded metering valve (11) are located above the branch of the return line (8).
  • (12) denotes a closed system which is under pressure and into which the liquid (2) is to be fed.
  • valve (9) for a certain, adjustable time, for example 10 s. Opening the valve (9) closes the check valve (10) and the spring-loaded check valve (11). The timing of the valve (9) is set based on experience; it is opened until experience has shown that the flushing out of gas accumulations in the system is complete. When the valve (9) closes, the Diaphragm pump (6) in the delivery and metering line (7) again pressure, whereby the check valves (10) and (11) open and the metering starts.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Reciprocating Pumps (AREA)
EP87114606A 1986-11-06 1987-10-07 Dispositif de pompage et de dosage de liquides volatils Withdrawn EP0266573A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3637798 1986-11-06
DE19863637798 DE3637798A1 (de) 1986-11-06 1986-11-06 Vorrichtung zum foerdern und dosieren von gasenden fluessigkeiten

Publications (1)

Publication Number Publication Date
EP0266573A1 true EP0266573A1 (fr) 1988-05-11

Family

ID=6313290

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87114606A Withdrawn EP0266573A1 (fr) 1986-11-06 1987-10-07 Dispositif de pompage et de dosage de liquides volatils

Country Status (2)

Country Link
EP (1) EP0266573A1 (fr)
DE (1) DE3637798A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993001008A1 (fr) * 1991-07-05 1993-01-21 Soichiro Yamamoto Dispositif de lavage de pieces
GB2277028A (en) * 1993-12-24 1994-10-19 Gw Chemicals Ltd Cleaning beverage dispensers using peracetic acid
EP1820518A1 (fr) * 2006-02-14 2007-08-22 Chemische Fabrik Dr. Weigert Gmbh & Co.Kg. Arrangement de dosage de liquides dangereux à partir d'un récipient de stockage

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007039010B4 (de) * 2007-08-17 2017-04-20 Khs Gmbh Dosier- und Versorgungssystem für Vorrichtungen zum H2O2-Sterilisieren von Packmitteln sowie Verfahren hierzu
DE102011109943A1 (de) * 2011-08-10 2013-02-14 Airbus Operations Gmbh Druckversorgung für ein Wassersystem

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3715863A (en) * 1971-03-26 1973-02-13 Bennett Pump Inc Compact pump/air separator apparatus
AU463040B2 (en) * 1972-04-04 1975-07-17 Diversey (Australasia) Pty. Limited Automatic bulk milk tank washer
DE2452313A1 (de) * 1974-11-05 1976-05-06 Felix Von Rueling Oberflaechenbehandlungsverfahren und geraet
US4412551A (en) * 1982-01-07 1983-11-01 Peters Leroy W Apparatus for cleaning hydraulic fluid system
US4601300A (en) * 1984-12-20 1986-07-22 American Sterilizer Company Apparatus for liquid disinfecting and sterile rinsing

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3715863A (en) * 1971-03-26 1973-02-13 Bennett Pump Inc Compact pump/air separator apparatus
AU463040B2 (en) * 1972-04-04 1975-07-17 Diversey (Australasia) Pty. Limited Automatic bulk milk tank washer
DE2452313A1 (de) * 1974-11-05 1976-05-06 Felix Von Rueling Oberflaechenbehandlungsverfahren und geraet
US4412551A (en) * 1982-01-07 1983-11-01 Peters Leroy W Apparatus for cleaning hydraulic fluid system
US4601300A (en) * 1984-12-20 1986-07-22 American Sterilizer Company Apparatus for liquid disinfecting and sterile rinsing

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993001008A1 (fr) * 1991-07-05 1993-01-21 Soichiro Yamamoto Dispositif de lavage de pieces
GB2277028A (en) * 1993-12-24 1994-10-19 Gw Chemicals Ltd Cleaning beverage dispensers using peracetic acid
GB2277028B (en) * 1993-12-24 1996-01-03 Gw Chemicals Ltd Cleaning beer dispense lines using peracetic acid
EP1820518A1 (fr) * 2006-02-14 2007-08-22 Chemische Fabrik Dr. Weigert Gmbh & Co.Kg. Arrangement de dosage de liquides dangereux à partir d'un récipient de stockage

Also Published As

Publication number Publication date
DE3637798A1 (de) 1988-05-11

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