WO1996032002A2 - Dispositif a soupape de reglage reliee a une conduite principale de gaz et a soupape pilote - Google Patents

Dispositif a soupape de reglage reliee a une conduite principale de gaz et a soupape pilote Download PDF

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Publication number
WO1996032002A2
WO1996032002A2 PCT/DE1996/000546 DE9600546W WO9632002A2 WO 1996032002 A2 WO1996032002 A2 WO 1996032002A2 DE 9600546 W DE9600546 W DE 9600546W WO 9632002 A2 WO9632002 A2 WO 9632002A2
Authority
WO
WIPO (PCT)
Prior art keywords
gas channel
main gas
chamber
arrangement according
channel
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
PCT/DE1996/000546
Other languages
German (de)
English (en)
Other versions
WO1996032002A3 (fr
Inventor
Georg Nusche
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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 Siemens AG, Siemens Corp filed Critical Siemens AG
Priority to EP96907298A priority Critical patent/EP0819228A1/fr
Publication of WO1996032002A2 publication Critical patent/WO1996032002A2/fr
Publication of WO1996032002A3 publication Critical patent/WO1996032002A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D1/00—Pipe-line systems
    • F17D1/02—Pipe-line systems for gases or vapours
    • F17D1/04—Pipe-line systems for gases or vapours for distribution of gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor

Definitions

  • the invention relates to an arrangement with a control valve connected to a main gas channel and with a pilot valve assigned to the control valve, which is connected to the main gas channel via a secondary gas channel.
  • a known arrangement of this type is obviously used in the form of the Siemens device SIPART PS.
  • a control valve is connected to a main gas channel, via which compressed air is usually supplied to the control valve as compressed gas.
  • the control valve is actuated by means of a pilot valve which is provided with a control device.
  • the pilot valve is connected to the main gas channel via a secondary gas channel, a filter in series with a pressure regulator being arranged upstream of the pilot valve in the secondary gas channel.
  • the filter serves to collect dirt particles present in the gas or compressed air; Drops of water or oil present in the compressed air should also be collected by this filter so that the pilot valve cannot get dirty, stick or oxidize.
  • the filter of the known arrangement does not sufficiently ensure that dirt, water or oil droplets in the compressed air cannot reach the pilot valve, so that after some operating time there may be a fault in the pilot valve and thus in the entire known valve Arrangement can come.
  • the invention is based on the object of designing an arrangement of the type mentioned at the outset in such a way that the operation of the pilot valve is impaired by Main gas channel carried foreign particles is largely avoided even over a longer operating time.
  • a throttle point is present in the main gas duct at the branch point of the secondary gas duct; in the course of the secondary channel, a chamber is provided in the vicinity of the main gas channel, and in the secondary gas channel extends a device with at least one tube with compared to the internal cross-sectional dimensions of the secondary from the main gas channel to just above the bottom of the chamber channel smaller outer cross-sectional dimensions.
  • the main advantage of the arrangement according to the invention is that a chamber is provided in the secondary gas duct upstream of the filter, the pressure regulator and the pilot valve, in which dirt particles and water or oil droplets transported with the compressed gas can collect in a kind of sump; the sump does not remain, however, but is automatically eliminated in that, as a result of the throttle point in the main gas channel, a pressure difference is built up on the pipe, which leads to an automatic emptying of the sump in the chamber by means of the main gas flow.
  • the throttle point at the branch point of the secondary gas duct can be designed in different ways. It is thus possible to provide an orifice on the main gas duct.
  • the arrangement of the arrangement according to the invention with an extension projecting into the main gas channel forms the throttle point.
  • the approach is an integral part of the facility.
  • the approach of the device which forms the throttle point can in turn be created in various ways. It is thus conceivable to provide the device with a sheet forming a throttle point at its end lying on the main gas duct.
  • the device has two tubes running next to one another, each of which protrudes into the main gas channel with a bevelled extension and is arranged one behind the other in the direction of the flow in the main gas channel.
  • the throttle point is formed by the beveled extensions, the beveling offering advantages in terms of flow technology.
  • FIG. 1 shows an embodiment of an arrangement according to the invention and in
  • FIG. 1 shows that a control valve 2 is connected to a main gas channel 1.
  • the control valve 2 can be actuated via a pilot valve 3, to which a control device 4 is assigned.
  • a control gas flow is supplied to the pilot valve 3 via a secondary gas channel 5, a filter 7 being arranged in the secondary gas channel 5 for cleaning the control gas.
  • the filter 7 is followed by a pressure regulator 8 which brings about a pressure reduction.
  • the pilot valve 3 is connected directly to the pressure regulator.
  • a chamber 10 is arranged in the vicinity of the main gas channel 1, which in FIG. 1 is connected upward to the main gas channel 1 via a section 11 of the secondary gas channel 5 with the main gas channel 1.
  • section 11 of the secondary gas duct 5 there is a device with a tube 12 which, with its upper end in FIG. 1, forms an extension 13 projecting into the main gas duct 1. With its lower end in FIG. 1, the tube 12 is guided up to just above the bottom 14 of the chamber 10 and therefore extends into a sump 15 which is formed during operation of the arrangement shown.
  • the tube 12 has - as can be clearly seen in FIG. 1 - cross-sectional dimensions which are smaller than the inner cross-sectional dimensions of the section 11 of the secondary gas channel 5, so that a circumferential gap 16 is present between the tube 12 and the section 11 of the secondary gas channel.
  • the extension 13 of the pipe 12 forms a throttle point for the main gas flow in the main gas channel 1 at the branch point 17 of the secondary gas channel 5 from the main gas channel 1, so that a pressure difference forms at the branch point 17.
  • This pressure difference causes a flow, as is indicated by the arrows in the tube 12, wherein dirt parts collected in the sump 15 as well as water and oil droplets are torn out and transported onward with the main gas stream.
  • the control gas is cleaned well. A further cleaning of the control gas takes place in that the control gas is led out of the chamber 10 through a filter insert 18 in the chamber 10 via a pipe socket 19.
  • the arrangement according to this figure differs essentially in that a device 20 with two tubes 21 and 22 is accommodated in section 11 of the secondary gas duct 5.
  • Each of the tubes 21 and 22 of the device 20 protrudes into the main gas duct 1 with bevelled extensions 23 and 24, so that a throttle point is formed by the two tubes 21 and 22.
  • These bevelled projections promote the flow to the chamber 10 and out of the chamber 10, as a result of which the sump 15 is avoided or eliminated particularly well.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Safety Valves (AREA)
  • Feeding And Controlling Fuel (AREA)

Abstract

La présente invention concerne un dispositif avec une soupape de réglage reliée à une conduite de gaz principale et avec une soupape pilote associée à la soupape de réglage, qui est reliée à la conduite de gaz principale par l'intermédiaire d'une conduite de gaz secondaire. Pour empêcher le plus possible, par l'intermédiaire d'un tel dispositif, une contamination de la soupape pilote, un goulet d'étranglement est prévu dans la conduite de gaz principale (1), au point de bifurcation (17) avec la conduite de gaz secondaire (5). Dans le cheminement de la conduite de gaz secondaire (5), à proximité de la conduite de gaz principale (1), est prévue une chambre (10) et, dans la conduite de gaz secondaire (5), un système comprenant au moins un tube (12) s'étendant depuis la conduite de gaz principale (1) jusqu'à tout près au-dessus du fond (14) de la chambre (10).
PCT/DE1996/000546 1995-04-05 1996-03-22 Dispositif a soupape de reglage reliee a une conduite principale de gaz et a soupape pilote Ceased WO1996032002A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP96907298A EP0819228A1 (fr) 1995-04-05 1996-03-22 Dispositif a soupape de reglage reliee a une conduite principale de gaz et a soupape pilote

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19513635.7 1995-04-05
DE1995113635 DE19513635C2 (de) 1995-04-05 1995-04-05 Anordnung mit einem an einen Hauptgaskanal angeschlossenen Stellventil und mit einem Vorsteuerventil

Publications (2)

Publication Number Publication Date
WO1996032002A2 true WO1996032002A2 (fr) 1996-10-10
WO1996032002A3 WO1996032002A3 (fr) 1997-02-20

Family

ID=7759427

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1996/000546 Ceased WO1996032002A2 (fr) 1995-04-05 1996-03-22 Dispositif a soupape de reglage reliee a une conduite principale de gaz et a soupape pilote

Country Status (3)

Country Link
EP (1) EP0819228A1 (fr)
DE (1) DE19513635C2 (fr)
WO (1) WO1996032002A2 (fr)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE570243A (fr) * 1957-08-14
FR1587361A (fr) * 1968-08-30 1970-03-20
FR2267029B1 (fr) * 1974-04-09 1977-10-14 Carpano & Pons
US4360037A (en) * 1981-01-05 1982-11-23 Anthony Manufacturing Corp. Self-cleaning filter assembly for solenoid-actuated valve
DE3000077A1 (de) * 1980-01-03 1981-07-09 British Gas Corp., London Reglereinrichtung zum regeln des drucks und /oder der stroemung eines gases o.a. stroemungsmittels in einem foerder- oder verteilungssystem
US4504291A (en) * 1983-06-29 1985-03-12 Mobil Oil Corporation Dropout boot for power recovery train

Also Published As

Publication number Publication date
WO1996032002A3 (fr) 1997-02-20
EP0819228A1 (fr) 1998-01-21
DE19513635C2 (de) 1997-08-21
DE19513635A1 (de) 1996-10-10

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