EP0968049B1 - Procede et dispositif pour l'extraction d'une matiere dissoute ou finement dispersee dans un liquide - Google Patents

Procede et dispositif pour l'extraction d'une matiere dissoute ou finement dispersee dans un liquide Download PDF

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Publication number
EP0968049B1
EP0968049B1 EP98907990A EP98907990A EP0968049B1 EP 0968049 B1 EP0968049 B1 EP 0968049B1 EP 98907990 A EP98907990 A EP 98907990A EP 98907990 A EP98907990 A EP 98907990A EP 0968049 B1 EP0968049 B1 EP 0968049B1
Authority
EP
European Patent Office
Prior art keywords
reservoir
liquid
cylindrical
bore
valve piston
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.)
Expired - Lifetime
Application number
EP98907990A
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German (de)
English (en)
Other versions
EP0968049A1 (fr
Inventor
Wilfried Wiegers
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
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Filing date
Publication date
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Application filed by Individual filed Critical Individual
Publication of EP0968049A1 publication Critical patent/EP0968049A1/fr
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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C31/00—Delivery of fire-extinguishing material
    • A62C31/02—Nozzles specially adapted for fire-extinguishing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/08—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point
    • B05B7/0892—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point the outlet orifices for jets constituted by a liquid or a mixture containing a liquid being disposed on a circle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/12—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages
    • B05B7/1254—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages the controlling means being fluid actuated
    • B05B7/1263—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages the controlling means being fluid actuated pneumatically actuated
    • B05B7/1272—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages the controlling means being fluid actuated pneumatically actuated actuated by gas involved in spraying, i.e. exiting the nozzle, e.g. as a spraying or jet shaping gas
    • B05B7/1281—Serial arrangement, i.e. a single gas stream acting on the controlling means first and flowing downstream thereof to the nozzle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/14—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid
    • F04F5/24—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid displacing liquids, e.g. containing solids, or liquids and elastic fluids
    • F04F5/28—Restarting of inducing action

Definitions

  • a medium dissolved or finely distributed to a remote location e.g. water mixed with so-called irritant gas, which the police use in operations in the case of demonstrations or the like. Similar applications are conceivable for pest control.
  • the Known device is not suitable for such operations because of the danger there is that the operator by wind driven parts of the discharged Medium can be taken.
  • the liquid receiving the medium held in a tubular housing that is open at one end.
  • the open end is provided with a beam shaping device.
  • the other A gas under pressure is suddenly applied to the end of the housing, and over a period of time. It must be ensured that the liquid in the is carried out essentially as a column and not immediately when it hits air fine droplets dispersed. A relatively high pressure is therefore required, however must not happen that the gaseous blowing agent through a channel Liquid column pours and the liquid behind the jet pump principle behind pulls and swirls strongly.
  • a beam occurs in the device according to the invention limited length from the tubular housing that detaches from the housing and after a certain flight time hits the application site.
  • two cylindrical reservoirs are coaxial to each other, a liquid, e.g. Water in which a medium, for example a certain active ingredient, is dissolved or is finely divided.
  • a liquid e.g. Water in which a medium, for example a certain active ingredient, is dissolved or is finely divided.
  • both reservoirs can be permanently connected to one Supply source to be connected to it after delivery of a predetermined Refill the amount from the first reservoir.
  • a jet shaping device in the form of a perforated nozzle which ensures that the liquid emerges as a jet, but more or less fine distribution, such as e.g. is the case with shower heads.
  • FIG. 1 is the closed position of the valve piston 20 shown.
  • the sealing section 32 in a bore section 36 the diameter of which is larger is than that of the bore section 30.
  • a between the Sealing sections 22, 26 lying section of the piston 20 has a slightly smaller diameter, so that a Space 38 is formed, the radial bore 40 in the Outer tube 12 is constantly connected to the atmosphere.
  • the left end of the tube assembly 12, 14, which is not shown is cooperates with a jet nozzle 54 which in the 2 and 3 is shown. She is so at the end of it Arrangement attached that only the medium from the Inside of the cylinder tube 14 via the nozzle arrangement 54 can leak.
  • This has a central hole 56 as well a ring of holes 58 which is concentric with the center Hole 56 is arranged.
  • On the cylinder tube 14 end facing the nozzle assembly 54 has a conical Recess 60 on which tapers to the central hole 56.

Claims (5)

  1. Dispositif pour l'extraction d'une matière dissoute ou finement dispersée dans un liquide à un endroit se trouvant éloigné de l'endroit d'extraction, comprenant un premier réservoir cylindrique (14) pour le liquide, un deuxième réservoir cylindrique (12) pour le gaz sous pression qui entoure de manière concentrique le premier réservoir (14) à une distance radiale, un piston (20) de soupape pouvant être mu entre deux positions qui repose dans une position de fermeture contre l'extrémité du premier réservoir cylindrique (14) et ferme hermétiquement l'espace annulaire (18) entre les réservoirs cylindriques (14, 12) et libère dans sa position d'ouverture une fente annulaire entre le premier et le deuxième réservoir (14, 12), un dispositif de commande pneumatique pour le piston (20) de soupape de telle sorte que le piston (20) de soupape soit maintenu dans la position de fermeture par la pression du deuxième réservoir (12) agissant sur une première surface active (62) opposée à la pression du deuxième réservoir (12) agissant sur la surface active (64) annulaire du piston (20) limitant l'espace annulaire (18) et que le piston (20) soit mu dans la position d'ouverture quand l'espace (48) orienté vers la première surface active (62) est purgé, et un gicleur à trous (54) à la sortie du premier réservoir (14) de telle sorte que le jet limité dans sa longueur sorte en fine dispersion.
  2. Dispositif selon la revendication 1, caractérisé en ce que une source de gaz sous pression (48a) est en permanence en relation avec le deuxième réservoir (12) par l'intermédiaire d'un clapet antiretour (52).
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que le piston (20) de soupape comprend une première section d'étanchéité (22) cylindrique dont la face frontale coopère avec le premier réservoir (14) et qui peut être déplacée de manière glissante et étanche dans une première section d'orifice, une deuxième section d'étanchéité (26) cylindrique ayant un diamètre plus petit qui peut être déplacée de manière glissante et étanche dans une deuxième section d'orifice (30) ainsi qu'une troisième section d'étanchéité (32) cylindrique en forme de tourillon qui plonge de manière ajustée dans un orifice (34), quand le piston (20) de soupape se trouve dans la position d'ouverture, mais qui est toutefois disposée dans la position de formeture dans un espace (48) qui est séparé par la deuxième section d'étanchéité (26) d'un deuxième espace (38) qui est formé entre le piston (20) de soupape et un logement, cet espace (38) étant relié en permanence par l'intermédiaire d'un orifice radial (40) à l'atmosphère, à une soupape d'évacuation (50) qui est reliée au premier espace (48), à une source de pression (48) pour le gaz qui est reliée à l'orifice (34) et à un conduit de raccordement entre l'orifice (34) et le deuxième réservoir (12) par un clapet antiretour (52).
  4. Dispositif selon une des revendications 1 à 3, caractérisé en ce que le gicleur à trous (54) présente un trou (56) central et une couronne concentrique de trous (58) à distance radiale du trou (56) central.
  5. Dispositif selon une des revendications 1 à 4, caractérisé en ce que dans la face frontale du piston (20) de soupape, un disque (26a) en matériau d'étanchéité est inséré.
EP98907990A 1997-03-21 1998-01-26 Procede et dispositif pour l'extraction d'une matiere dissoute ou finement dispersee dans un liquide Expired - Lifetime EP0968049B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19711855A DE19711855C5 (de) 1997-03-21 1997-03-21 Vorrichtung zum Austragen eines in einer Flüssigkeit gelösten oder fein verteilten Stoffes
DE19711855 1997-03-21
PCT/EP1998/000409 WO1998042433A1 (fr) 1997-03-21 1998-01-26 Procede et dispositif pour l'extraction d'une matiere dissoute ou finement dispersee dans un liquide

Publications (2)

Publication Number Publication Date
EP0968049A1 EP0968049A1 (fr) 2000-01-05
EP0968049B1 true EP0968049B1 (fr) 2002-07-24

Family

ID=7824150

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98907990A Expired - Lifetime EP0968049B1 (fr) 1997-03-21 1998-01-26 Procede et dispositif pour l'extraction d'une matiere dissoute ou finement dispersee dans un liquide

Country Status (5)

Country Link
EP (1) EP0968049B1 (fr)
AT (1) ATE220947T1 (fr)
AU (1) AU6616198A (fr)
DE (2) DE19711855C5 (fr)
WO (1) WO1998042433A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10048024B4 (de) * 2000-09-26 2004-11-18 Gesellschaft für technische Entwicklungen mbH Volumendosierventil
DE102006016286B4 (de) * 2006-04-03 2009-03-12 Karl-Heinz Dräger Verfahren und Anlage zum Verteilen und Austragen eines Reiz- oder Kampfstoffes
WO2019008416A1 (fr) * 2017-07-06 2019-01-10 Swiss Fire Protection Research & Development Ag Dispositif de propulsion d'une charge de matériau à l'aide d'un milieu en phase gazeuse sous pression

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE404385C (de) * 1918-10-29 1924-10-20 Wolf Patent G M B H Feuerloeschpistole
US2838122A (en) * 1954-05-13 1958-06-10 Hutchinson Harold Fire extinguishing pistols
HU203995B (en) * 1989-01-04 1991-11-28 Istvan Szoecs Method and apparatus for fine dispersing fluid or powder in gaseous medium advantageously air
HU213005B (en) * 1994-06-27 1997-01-28 Szoecs Device for dispersing fluid or dust to gas, mainly to air
AU6728096A (en) * 1996-06-03 1998-01-05 Alexandr Markusovich Kordunsky Method and device for fire-fighting

Also Published As

Publication number Publication date
DE19711855C2 (de) 1999-06-02
ATE220947T1 (de) 2002-08-15
WO1998042433A1 (fr) 1998-10-01
EP0968049A1 (fr) 2000-01-05
DE19711855A1 (de) 1998-10-08
AU6616198A (en) 1998-10-20
DE59804892D1 (de) 2002-08-29
DE19711855C5 (de) 2005-02-24

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