EP0151223A2 - Dispositif de distribution de liquides par tirage sous pression - Google Patents

Dispositif de distribution de liquides par tirage sous pression Download PDF

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Publication number
EP0151223A2
EP0151223A2 EP84112131A EP84112131A EP0151223A2 EP 0151223 A2 EP0151223 A2 EP 0151223A2 EP 84112131 A EP84112131 A EP 84112131A EP 84112131 A EP84112131 A EP 84112131A EP 0151223 A2 EP0151223 A2 EP 0151223A2
Authority
EP
European Patent Office
Prior art keywords
container
liquid
line
gas
pressure
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
EP84112131A
Other languages
German (de)
English (en)
Other versions
EP0151223A3 (fr
Inventor
Hans-Joachim Ulbrich
Horst Quester
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.)
Wilh Quester Machinenfabrik GmbH
Original Assignee
Wilh Quester Machinenfabrik GmbH
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 Wilh Quester Machinenfabrik GmbH filed Critical Wilh Quester Machinenfabrik GmbH
Publication of EP0151223A2 publication Critical patent/EP0151223A2/fr
Publication of EP0151223A3 publication Critical patent/EP0151223A3/fr
Ceased 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
    • B67D7/72—Devices for applying air or other gas pressure for forcing liquid to delivery point
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/2931—Diverse fluid containing pressure systems
    • Y10T137/3115—Gas pressure storage over or displacement of liquid
    • Y10T137/3127—With gas maintenance or application
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/4673—Plural tanks or compartments with parallel flow
    • Y10T137/469—Sequentially filled and emptied [e.g., holding type]
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/4673—Plural tanks or compartments with parallel flow
    • Y10T137/4841—With cross connecting passage

Definitions

  • the invention relates to a compressed gas-operated dispensing device for liquids, with a first container which can be connected to a compressed gas source via a first gas line and the outlet of which is connected to an outlet line, and a second which can also be connected to the compressed gas source via a second gas line and a first valve Container which can be connected to a liquid source via a liquid line.
  • metering pumps For the expulsion of liquid from a container, for example for the purpose of spraying the liquid onto a material to be treated, it is known to use metering pumps with which the pressure required to expel the liquid is generated.
  • Dosing pumps which are designed as piston pumps, have the disadvantage that pressure surges and vibrations occur, so that no uniform dosing, but a shock dosing he follows. If spindle pumps or the like are used as metering pumps, high-frequency stochastic vibrations arise, so that a continuous, uniform dispensing of the liquid for the purpose of atomization is also difficult herewith. Continuous atomization is required, for example, when spraying tobacco with flavorings, when spraying textiles and in similar applications.
  • a known dispenser of the type mentioned at the beginning (US-A-1 460 389) has two containers, one of which is connected to an expansion tank and the other to a pressure tank. When one container is filled with liquid, the gas displaced from that container escapes into the expansion tank. The pressure tank delivers to the other Container of compressed gas for expelling liquid from this container. In this way, one container can be filled when the other is emptied, and vice versa.
  • the known dispensing device requires, in addition to the pressure tank, an expansion tank and a compressor which extracts gas from the expansion tank, compresses this gas and supplies it to the pressure tank. Each of the two containers must be connected to at least three lines. In addition, a large expenditure on valves is required.
  • the invention has for its object to provide an output device of the type mentioned that with a simple source of pressurized gas, e.g. a usually existing compressed air line, which can be implemented easily and with little technical effort.
  • a simple source of pressurized gas e.g. a usually existing compressed air line
  • liquid line can be connected to the outlet line and to the first container through a second valve and that the second gas line can be connected to a vent line if the first valve separates this second gas line from the compressed gas source.
  • the second container serves as a reserve container. From this reserve container, liquid is pressed into the first container or into the liquid line leading out of the first container when the first container is almost empty. During this liquid transfer from the second container into the first container, both containers are connected to the compressed gas source, so that they are under the same pressure stand. This avoids the occurrence of pressure fluctuations in the liquid line leading out of the first container. The transfer of the liquid from the second container into the first container takes place during the dispensing process and without this being interrupted or changed. When the first container has been filled from the second container, the second container is refilled. In this case, the gas line of the second container is connected to the vent line and the liquid path from the second container to the first container is blocked.
  • the second container can now be replenished from the external liquid source until it is filled, while liquid is continuously pressed out of the first container.
  • the two containers thus form a tandem arrangement, so to speak, the first container being emptied when the second container is being filled and the first container being filled during the emptying of the second container.
  • Both containers preferably have at least approximately the same volume.
  • the containers can be made relatively small, so that only small amounts of liquid remain in them when the dispenser is switched off. Because of the constant refilling of the containers, small container volumes are sufficient.
  • the compressed air network usually available in factories can be used as the compressed gas source, which supplies compressed air at a pressure of approx. 6 bar.
  • a simpler way of generating the pressure difference required for decanting is that the second container is arranged at a higher level than the first container and that the gas lines of both containers can be connected to one another when the liquid line of the second container is connected to the outlet line.
  • both containers are connected to the same gas pressure during the transfer phase.
  • the required pressure difference is generated by the height difference of the tanks.
  • the bottom wall of the second container is at a higher level than the top wall of the first container.
  • An additional external pressure source to generate the pressure difference for decanting is not required.
  • the second container 17 is designed in the same way as the first container 10. Its liquid line 18 leading out of the bottom wall is on the one hand via a valve 19 with a supply line 20 coming from a liquid source (not shown) and on the other hand via a further valve 21 with the outlet line 11 of the first container 10 connected.
  • the gas line 22 of the second container 17 can be connected to the compressed air supply line 16 via a changeover valve 23 and an adjustable throttle point 24.
  • valves 14, 19, 21 and 23 can either be controlled by a timer or by level control depending on the liquid levels in the containers 10 and 17.
  • the second container 17 Since the second container 17 is arranged so high that its bottom wall is at a higher level than the top wall of the first container 10, the liquid contained in the second container 17 flows through the opened valve 21 to the outlet line 11. A part of this liquid becomes discharged via the open valve 12 and the excess part rises in the first container 10, which is filled in this way becomes.
  • the pressure difference caused by the height difference of the containers 10 and 17 is so small in relation to the size of the pressure of the compressed air supplied that the pressure change in the outlet line 11 is negligibly small.
  • valve 21 is closed according to FIG. 3 and the changeover valves 14 and 23 are switched over in such a way that the gas line 13 with the compressed air supply line 16 is connected, while the gas line 22 is connected to a vent line 26 leading into the outside air.
  • the line 25 is blocked in this phase of refilling the second tank.
  • the second container 17 is now depressurized because it is vented via the gas line 22, and via the opened valve 19, liquid flows from below through the liquid line 18 into the second container 17, which is refilled in this way.
  • the valve 19 is closed and the changeover valve 23 connects the gas line 22 to the compressed air supply line 16 again, so that the standby phase shown in FIG. 1 is reached again.
  • the liquid source (not shown) need only provide the liquid under low pressure, which may be much lower than the pressure in the first container 10.
  • the gas lines 13 and 22 of both containers are connected to one another unthrottled via line 25. Therefore, an air flow can be maintained while maintaining the full air pressure flow from the first container 10 into the second container 17. In this way, the same volume of air as that which is displaced by the increase in the liquid level from the first container 10 is replenished in the second container 17, in which the liquid level decreases approximately to the same extent as it does in the first container 10 increases.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Loading And Unloading Of Fuel Tanks Or Ships (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
EP84112131A 1983-12-22 1984-10-10 Dispositif de distribution de liquides par tirage sous pression Ceased EP0151223A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19833346330 DE3346330A1 (de) 1983-12-22 1983-12-22 Druckgasbetriebene ausgabevorrichtung fuer fluessigkeiten
DE3346330 1983-12-22

Publications (2)

Publication Number Publication Date
EP0151223A2 true EP0151223A2 (fr) 1985-08-14
EP0151223A3 EP0151223A3 (fr) 1986-01-15

Family

ID=6217642

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84112131A Ceased EP0151223A3 (fr) 1983-12-22 1984-10-10 Dispositif de distribution de liquides par tirage sous pression

Country Status (3)

Country Link
US (1) US4613060A (fr)
EP (1) EP0151223A3 (fr)
DE (1) DE3346330A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0394466A1 (fr) * 1988-09-19 1990-10-31 Mori-Gumi Co. Ltd. Systeme d'avance forcee de materiaux utilisant de l'air comprime
US5316654A (en) * 1985-09-13 1994-05-31 Berkebile Donald C Processes for the manufacture of enriched pitches and carbon fibers

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0335058B1 (fr) * 1988-04-01 1992-07-29 SIM-BRUNT S.p.A. Dispositif de dosage de la masse de gaz pour l'alimentation en carburant de véhicules à moteur
GB9507845D0 (en) * 1995-04-18 1995-05-31 Kodak Ltd Improvements in or relating to the handling of solutions
US6142169A (en) * 1997-03-28 2000-11-07 Tetra Laval Holdings & Finance, Sa Sterile tank venting system for a filling machine
KR100294808B1 (ko) * 1999-03-18 2001-07-12 임정남 자동 공압펌프
DE19914202C2 (de) * 1999-03-29 2001-05-03 Steag Hamatech Ag Verfahren und Vorrichtung zum Einfüllen eines Fluids in einen Drucktank
SE0103311D0 (sv) * 2001-10-04 2001-10-04 Siemens Elema Ab Delivery Apparatus for Pressurised Medical Liquids
DE10315351A1 (de) * 2003-04-03 2004-10-14 Tetra Laval Holdings & Finance S.A. Zwischenspeichervorrichtung für Lebensmittelbehandlungsanlagen
US8899627B2 (en) 2011-01-13 2014-12-02 Wacker Neuson Production Americas Llc Multiple fuel tank system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE197787C (fr) *
DE3028528A1 (de) * 1979-07-27 1981-02-19 Coca Cola Co Automatische umschaltvorrichtung fuer eine fluessigkeit-ausgabeanlage
US4284210A (en) * 1977-12-21 1981-08-18 Vladimir Horak Static metering pump

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1386301A (en) * 1916-11-08 1921-08-02 Sidney T Adair Apparatus for transferring liquids
US1460389A (en) * 1921-07-05 1923-07-03 Mauclere Pierre Andre P Victor Liquid-dispensing station
US1673696A (en) * 1926-02-24 1928-06-12 Republic Steel Package Company Dispensing tank
US2063228A (en) * 1933-07-07 1936-12-08 Eugene Charmat Apparatus for the delivery of liquids
US2669941A (en) * 1949-12-15 1954-02-23 John W Stafford Continuous liquid pumping system
DE1970400U (de) * 1967-07-05 1967-10-12 Grundstuecksverwaltungsgesells Vorrichtung zum befuellen von kanistern mit brennbaren fluessigkeiten.
US3805819A (en) * 1972-10-05 1974-04-23 B Etter Method and means of applying additives to industrial gas
ES423474A1 (es) * 1974-02-21 1983-08-01 Mecano Quimica S A Instalcion para el suministro de liquidos de presion.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE197787C (fr) *
US4284210A (en) * 1977-12-21 1981-08-18 Vladimir Horak Static metering pump
DE3028528A1 (de) * 1979-07-27 1981-02-19 Coca Cola Co Automatische umschaltvorrichtung fuer eine fluessigkeit-ausgabeanlage

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5316654A (en) * 1985-09-13 1994-05-31 Berkebile Donald C Processes for the manufacture of enriched pitches and carbon fibers
EP0394466A1 (fr) * 1988-09-19 1990-10-31 Mori-Gumi Co. Ltd. Systeme d'avance forcee de materiaux utilisant de l'air comprime
EP0394466A4 (en) * 1988-09-19 1991-03-13 Mori-Gumi Co. Ltd. Forced feed system for materials utilizing compressed air

Also Published As

Publication number Publication date
DE3346330A1 (de) 1985-07-11
EP0151223A3 (fr) 1986-01-15
US4613060A (en) 1986-09-23

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Inventor name: QUESTER, HORST

Inventor name: ULBRICH, HANS-JOACHIM