DE3440451A1 - Fine-metering pressure-reducing valve - Google Patents

Fine-metering pressure-reducing valve

Info

Publication number
DE3440451A1
DE3440451A1 DE19843440451 DE3440451A DE3440451A1 DE 3440451 A1 DE3440451 A1 DE 3440451A1 DE 19843440451 DE19843440451 DE 19843440451 DE 3440451 A DE3440451 A DE 3440451A DE 3440451 A1 DE3440451 A1 DE 3440451A1
Authority
DE
Germany
Prior art keywords
piston
valve
spring
pressure
pistons
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.)
Granted
Application number
DE19843440451
Other languages
German (de)
Other versions
DE3440451C2 (en
Inventor
Erfinder Wird Nachtraeglich Benannt Der
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
Priority to DE19843440451 priority Critical patent/DE3440451A1/en
Priority to DE19853503977 priority patent/DE3503977A1/en
Publication of DE3440451A1 publication Critical patent/DE3440451A1/en
Application granted granted Critical
Publication of DE3440451C2 publication Critical patent/DE3440451C2/de
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C7/00—Methods or apparatus for discharging liquefied, solidified, or compressed gases from pressure vessels, not covered by another subclass
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/04—Control of fluid pressure without auxiliary power
    • G05D16/10—Control of fluid pressure without auxiliary power the sensing element being a piston or plunger
    • G05D16/109—Control of fluid pressure without auxiliary power the sensing element being a piston or plunger with two or more pistons acting as a single pressure controller that move together over range of motion during normal operations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0382—Constructional details of valves, regulators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0107—Single phase
    • F17C2223/0123—Single phase gaseous, e.g. CNG, GNC

Abstract

Two pistons located in a housing are connected to one another by means of a spring. One piston is driven either by an adjusting or by an interposed spring, and it then presses on the spring located between the two pistons and consequently on the second piston. This second piston has an overflow bore, through which compressed gas can flow into the run-off cylinder chamber. When the high-pressure valve is opened, this overflow bore is at first closed, so that the inflowing gas takes full effect on the piston surface and presses the piston back immediately, depending on the setting of the compression spring. A very fine metering capacity becomes possible thereby.

Description

Feindosier-DruckmindenrensDFine dosing pressure reducing valve D.

Die Erfindung betrifft ein Druckminderventil, mit dessen Hilfe es möglich Ist, aus einem Hochdruckgasbehälter kleinste Mengen (Gasbläschen) zu entnehmen.The invention relates to a pressure reducing valve, with the help of which it It is possible to take the smallest quantities (gas bubbles) from a high-pressure gas container.

Derartige Geräte werden z.B. für die Anreicherung von Aquarienwasser mit C02 zur Düngung der Pflanzen benötigt.Such devices are used e.g. for the enrichment of aquarium water with C02 needed to fertilize the plants.

Die bisher bekannten Ventile dieser Art lassen mit einem federdruck-betätigten Kolben oder Membrankolben ein Hochdruckventil öffnen. Bei Erreichung eines gewissen Druckes In der Kammer zwischen Hochdruckventil und federdruck-betätlgtem Kolben weicht' dieser Kolben zurück, das Hochdruckventll schließt, die Gasmenge wird aus dem Raum zwischen Hochdruckventil und Kolben entnommen.The previously known valves of this type can be operated with a spring pressure Piston or diaphragm piston open a high pressure valve. When achieving a certain Pressure in the chamber between the high pressure valve and the spring pressure actuated piston if this piston moves back, the high-pressure valve closes, the amount of gas is exhausted taken from the space between the high pressure valve and the piston.

Derartige Ventile sind für die gewünschte Kleinstentnahme von Gas infolge der groben Regelbarkeit nur bedingt zu verwenden.Such valves are for the desired small extraction of gas Can only be used to a limited extent due to the coarse controllability.

Demgegenüber hat sich die Erfindung die Aufgabe gestellt, ein Druckminderventil zu schaffen, das bei entsprechender Einstellung auch kleinste Mengen des Gases automatisch liefert.In contrast, the invention has the object of a pressure reducing valve to create, with the appropriate setting, even the smallest amounts of gas automatically supplies.

Zur Lösung dieses Problems wurde ein Doppel-Kolbensystem geschaffen, das aus eInem Zylinder 1, dem Ventilkolben 5 und dem Steuerkolben 8 besteht.To solve this problem, a double piston system was created, which consists of a cylinder 1, the valve piston 5 and the control piston 8.

Diese Kolben können auch als Membrankolben ausgeführt sein.These pistons can also be designed as diaphragm pistons.

Der Ventilkolben 5 Ist mit einer Überströmbohrung 18 versehen, weiterhin mit einer Ventilschaftaufnahme 17, zur Aufnahme des Ventilschaftes 16. Durch Niederdrücken des Ventilkolbens 5 wird der Ventilschaft 16 abdichtend mit der Ventilschaftaufnahme 17 verbunden.The valve piston 5 is provided with an overflow hole 18, furthermore with a valve stem receptacle 17 for receiving the valve stem 16. By pressing down of the valve piston 5, the valve stem 16 becomes sealing with the valve stem receptacle 17 connected.

Der Ventilkolben 5 wird durch Nlederdrücken des Steuerkolbens 8 über die Feder 7 angetrieben. Der Steuerkolben 8 kann direkt durch dle Stellschraube 10 bewegt werden, es kann aber auch eine Steuerkolbenfeder 13 dazwischen angeordnet werden. -Hierdurch erhöht sich die Feinfühligkeit beim Einstellen des Ventiles.The valve piston 5 is pushed over by pressing the control piston 8 the spring 7 driven. The control piston 8 can be adjusted directly through the adjusting screw 10 can be moved, but a control piston spring 13 can also be arranged between them will. -This increases the sensitivity when setting the valve.

Beim Niederdrücken des Ventilkolbens 5 über die Feder 7 und den Steuerkolben 8 setzt sich die Ventilschaftaufnahme 17 dichtend auf den Ventilschaft 16. - Die Stau-Zylinderkammer 14 Ist verschlossen. Durch Öffnen des Hochdruckventils 4 wird Gas in die Stau-Zylinderkammer 14 eingelassen.When the valve piston 5 is pressed down via the spring 7 and the control piston 8, the valve stem receptacle 17 sits sealingly on the valve stem 16. - The Storage cylinder chamber 14 is closed. By opening the high pressure valve 4 is Gas admitted into the baffle cylinder chamber 14.

Durch den Gasdruck wird der Ventilkolben 5 zurückgedrückt und gibt die Ventilschaftaufnahme 14 mit der Überströmbohrung 18 frei. Hierdurch gelangt nun Druckgas in die Ablauf-Zylinderkammer 15 und von dort aus in den Niederdruckausgang 3.The valve piston 5 is pushed back by the gas pressure and releases the valve stem receptacle 14 with the overflow hole 18 is free. This got through now pressurized gas into the outlet cylinder chamber 15 and from there into the low-pressure outlet 3.

Eine zweite Ausführungsform der Erfindung weist eine als Drossel ausgebildete Überströmbohrung 11 auf. - Die Überströmbohrung 18 muß sich bei dieser Ausführung nicht im Ventilkolben 5 befinden.A second embodiment of the invention has one designed as a throttle Overflow hole 11. - The overflow hole 18 must be in this version are not in the valve piston 5.

Der Gasdurchgang durch die Überströmbohrung 11 wird so stark gedrosselt, daß in der Stau-Zylinderkammer 14 ein Druck-Rückstau entsteht, der den Ventilkolben 5 gegen die Feder 7 zurückdrückt. - Dabei wird das Hochdruckventil 4 geschlossen.The passage of gas through the overflow hole 11 is throttled so much that that in the storage cylinder chamber 14 a pressure back pressure arises, which the valve piston 5 pushes back against the spring 7. - The high pressure valve 4 is closed.

Beim Einströmen des Druckgases in die Ablauf-Zylinderkammer 15 gibt auch der Steuerkolben 8 infolge des Gasdrucks bei Anordnung der Steuerkolbenfeder 13 nach, so daß die Öffnung des Hochdruckventiles 4 in sehr feinfühliger Weise gesteuert werden kann.-Hierdurch wird auch die Entnahme kleinster Gasmengen möglich.When the pressurized gas flows into the outlet cylinder chamber 15 there also the control piston 8 due to the gas pressure when the control piston spring is arranged 13 after, so that the opening of the high pressure valve 4 is controlled in a very sensitive manner - This enables even the smallest amounts of gas to be withdrawn.

Falls eine weniger feinfühlige Regelung erwünscht ist, wird die Steuerkolbenfeder 13 nicht eingebaut und somit der Steuerkolben 8 direkt durch die Stellschraube 10 angetrieben.If a less sensitive control is desired, the control piston spring is used 13 not installed and thus the control piston 8 directly through the adjusting screw 10 driven.

Der Hochdruckeingang 2 wird in der üblichen Weise am Druckgasvorrats-Behälter angeschlossen.The high pressure inlet 2 is in the usual way on the compressed gas supply container connected.

Bei den auf der Zeichnung dargestellten Dichtungen 6 und 9 handelt es sich um O-Ringe für die sich hin und her bewegenden Kolben.The seals 6 and 9 shown in the drawing are they are O-rings for the reciprocating pistons.

Diese Kolben können wahlweise auch als Membrankolben ausgeführt werden.These pistons can optionally also be designed as diaphragm pistons.

Die Vorteile der erfindungsgemäßen Ausführungen liegen im reaktionsschnellen Ansprechen des Ventilkolbens 5 und damit auch reaktionsschnellen Schließen des Hochdruckventiles 4, weil der gegen den Ventilkolben gerichtete Druck nicht direkt durch den Niederdruckausgang 3 abfließen kann, sondern zunächst voll auf den Ventilkolben 5 wirken kann.The advantages of the embodiments according to the invention lie in the fact that they are quick to react Response of the valve piston 5 and thus also quick-reacting closing of the high-pressure valve 4, because the pressure directed against the valve piston does not come directly through the low pressure outlet 3 can flow off, but can initially act fully on the valve piston 5.

- Leerseite -- blank page -

Claims (6)

Schutzansprüche: 1.) Feindosier-Druckminderventil dadurch gekennzeichnet, daß im Ventilkolben 5 eine als Drossel ausgebildete Überströmbohrung angeordnet ist.Protection claims: 1.) Fine metering pressure reducing valve characterized that in the valve piston 5 an overflow bore designed as a throttle is arranged is. 2.) Feindosier-Druckminderventil dadurch gekennzeichnet, daß der Ventilkolben 5 eine Überströmbohrung 18 erhält, die so ausgebildet ist, daß sie beim Öffnen des Hochdruckventils 4 abdichtend verschlossen wird.2.) Fine metering pressure reducing valve, characterized in that the valve piston 5 receives an overflow hole 18 which is designed so that when you open the High pressure valve 4 is sealingly closed. 3.) Ventil nach Ansprüchen 1 - 2 dadurch gekennzeichnet, daß am Steuerkolben 8 eine Steuerkolbenfeder 13 und eine Stellschraube 10 angeordnet sind.3.) Valve according to claims 1-2, characterized in that the control piston 8, a control piston spring 13 and an adjusting screw 10 are arranged. 4.) Ventil nach Ansprüchen 1-3 dadurch gekennzeichnet, daß am Steuerkolben 8 eine Stellschraube 10 angeordnet ist.4.) Valve according to claims 1-3, characterized in that the control piston 8 an adjusting screw 10 is arranged. 5.) Ventil nach Ansprüchen 1-4 dadurch gekennzeichnet, daß am Ventilkolben 5 eine gasdruck-drosselnde Überströmbohrung 11 angeordnet ist.5.) Valve according to claims 1-4, characterized in that the valve piston 5 a gas pressure-throttling overflow hole 11 is arranged. 6.) Ventil nach Ansprüchen 1-5 dadurch gekennzeichnet, daß die Kolben als Membrankolben ausgebildet sind.6.) Valve according to claims 1-5, characterized in that the piston are designed as diaphragm pistons.
DE19843440451 1984-11-06 1984-11-06 Fine-metering pressure-reducing valve Granted DE3440451A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE19843440451 DE3440451A1 (en) 1984-11-06 1984-11-06 Fine-metering pressure-reducing valve
DE19853503977 DE3503977A1 (en) 1984-11-06 1985-02-06 Supplementary device to the precision-metering pressure reduction valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19843440451 DE3440451A1 (en) 1984-11-06 1984-11-06 Fine-metering pressure-reducing valve

Publications (2)

Publication Number Publication Date
DE3440451A1 true DE3440451A1 (en) 1986-05-07
DE3440451C2 DE3440451C2 (en) 1988-05-19

Family

ID=6249578

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19843440451 Granted DE3440451A1 (en) 1984-11-06 1984-11-06 Fine-metering pressure-reducing valve

Country Status (1)

Country Link
DE (1) DE3440451A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4205094A1 (en) * 1991-02-25 1992-09-03 Guenther Buechner Local improvement of plant growth - by soil aeration and/or sunlight reflection

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1930642A1 (en) * 1969-06-18 1971-01-07 Siemens Ag Circuit board for receiving and connecting electrical components

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1930642A1 (en) * 1969-06-18 1971-01-07 Siemens Ag Circuit board for receiving and connecting electrical components

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4205094A1 (en) * 1991-02-25 1992-09-03 Guenther Buechner Local improvement of plant growth - by soil aeration and/or sunlight reflection

Also Published As

Publication number Publication date
DE3440451C2 (en) 1988-05-19

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