MXPA01006684A - Pressure reducer for gas has sprung membrane in housing forming chambers with inlet valve. - Google Patents

Pressure reducer for gas has sprung membrane in housing forming chambers with inlet valve.

Info

Publication number
MXPA01006684A
MXPA01006684A MXPA01006684A MXPA01006684A MX PA01006684 A MXPA01006684 A MX PA01006684A MX PA01006684 A MXPA01006684 A MX PA01006684A MX PA01006684 A MXPA01006684 A MX PA01006684A
Authority
MX
Mexico
Prior art keywords
chamber
membrane
gas
pressure reducer
sprung
Prior art date
Application number
Other languages
Spanish (es)
Inventor
Schladerer Max
Original Assignee
Briffault Sa
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 Briffault Sa filed Critical Briffault Sa
Publication of MXPA01006684A publication Critical patent/MXPA01006684A/en

Links

Classifications

    • 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
    • G05D16/06—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule
    • G05D16/063—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane
    • G05D16/0675—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane the membrane acting on the obturator through a lever
    • G05D16/0694—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane the membrane acting on the obturator through a lever using a spring-loaded membrane with a spring-loaded slideable obturator
    • 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
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/20—Excess-flow valves
    • F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
    • F16K17/24—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member
    • F16K17/28—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only
    • F16K17/30—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only spring-loaded

Abstract

The gas pressure reducer has a housing (1) divided by a membrane (2,3) with an opening (4) and a first chamber connected to the exterior with a limiting spring (7) to push the membrane. There is a second chamber with an inlet opening having a valve (10). The opening forms a seating for the valve. A sprung valve ball (22,23) is positioned in the inlet duct (9).

Description

Gas regulator with depressor device A gas pressure reducer is already known which comprises a body, subdivided by a membrane provided with an opening, in a first chamber communicating with the outside and in which a set or set-point spring is mounted, so as to repel the membrane , and in a second chamber in which it dis-ports, in addition to an outlet connector, an inlet conduit provided with a shutter. The opening forms a valve, with a seat arranged in the second chamber and constituting part of a movable mobile unit, moving the obturator. If a shutter malfunction occurs, for example due to a break in the linkage determining the moving solidarity of the moving equipment and the shutter or to a blocking of the shutter, an excess pressure is produced in the second chamber. The valve opens and passes gas to the first chamber and then to the atmosphere. The pressure in the second chamber continues to increase and the flow of gas, which escapes into the atmosphere, increases. This is not desirable and the invention avoids this by means of a pressure reducer of the type indicated above, in which the pressure in the second chamber can not exceed a prescribed value and the amount of gas escaping to the outside is limited. According to the invention, a depressor device is mounted in the inlet duct. When a shutter failure occurs, the pressure increases in the second chamber and gas passes from the second chamber to the first chamber and then into the atmosphere. But, from a certain flow through the inlet duct, the depressor device comes into action and limits the flow in the inlet duct and, therefore, the pressure in the second chamber. The valve closes. An equilibrium is thus reached in which the pressure of the second chamber is not higher than a prescribed value and in which practically no more gas is released into the atmosphere. The single figure of the attached drawing is a sectional view of a pressure reducer according to the invention. The illustrated pressure reducer comprises a body 1 subdivided by a membrane 2 of plate 3 provided with a central opening 4 in a first chamber 5 and in a second chamber 6. A set-up or set-up spring 7 is mounted in the first chamber 5 of This method repels the membrane 2 and its plate 3 towards the second chamber 6. In the second chamber 6 an outlet connector 8 and an inlet conduit 9 provided with a shutter 10 open. The plug 10 is coupled by means of a linkage 11 to a seat 12 arranged in the second chamber 6. The linkage 11, the seat 12, a rod 13 passing through the opening 4 and a hat-shaped part whose edge performs the stop function 14 together form a Mobile Equipment. The seat 12 forms a valve with the opening 4. A valve spring 16 has an end that rests on the inside face of the upper part of the hat and its other end on the plate 3, the spring 16 extending, like the stop 14, through the chamber 5. This communicates with the exterior by means of a hole 17. An annular insert 18 having a part 19 of smaller diameter facing towards the plug 10 and a part 20 of larger diameter turned towards the opposite side is found in the inlet conduit 9. The two parts are joined by a conical intermediate part 21. A depressor device spring 22 is housed in the part 19. A ball 23 of diameter greater than the inner diameter of the part 19, but smaller than the inner diameter of the part 20, is received in it, being centered on the spring 22. The ball 23 is maintained on the side opposite the spring 22 by a stop 24. When the flow in the pipe 9 exceeds a prescribed value, the ball 23 repels the spring 22 and passes to applied against the intermediate part 21 limiting the flow going to the second chamber 6, whatever the position in which the shutter 10 is located. This limitation of any excess flow causes the pressure in the chamber 6 can not exceed a prescribed value and that the quantity of gas that flows through the valve through the orifice 17 is also limited.

Claims (2)

Claims
1. an annealing device, comprising a body (1) subdivided by a membrane (2, 3) provided with an opening (4) in a first chamber (5), communicating with the outside and in which a spring (7) of tare or the set point is mounted so that it repels the membrane (2, 3), and in a second chamber (6) in which it opens, in addition to an outlet connector (8), an inlet duct (9) provided with a shutter (10), a valve forming the opening (4) with a seat (12) disposed in the second chamber and forming part of a movable, integral, moving equipment of the shutter (10), characterized by a depressor device (22, 23) mounted on the inlet duct (9).
2. The pressure reducer according to claim 1, characterized in that the depressor device comprises a ball (23) conjugated to a seat (21) and separated from the seat (21) by a spring (22).
MXPA01006684 2000-07-04 2001-06-28 Pressure reducer for gas has sprung membrane in housing forming chambers with inlet valve. MXPA01006684A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0008656A FR2811399B1 (en) 2000-07-04 2000-07-04 GAS REGULATOR WITH DEPRIMOGENIC DEVICE

Publications (1)

Publication Number Publication Date
MXPA01006684A true MXPA01006684A (en) 2004-07-30

Family

ID=8852075

Family Applications (1)

Application Number Title Priority Date Filing Date
MXPA01006684 MXPA01006684A (en) 2000-07-04 2001-06-28 Pressure reducer for gas has sprung membrane in housing forming chambers with inlet valve.

Country Status (3)

Country Link
FR (1) FR2811399B1 (en)
IT (1) ITGE20010058A1 (en)
MX (1) MXPA01006684A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20021879A1 (en) * 2002-09-03 2004-03-04 Cavagna Group S P A Divisione Reca Ora Cavagna Gr GAS FLOW REGULATION DEVICE TOWARDS USE.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2334031A1 (en) * 1975-12-02 1977-07-01 Briffault Sa Gas pressure regulator valve - comprises diaphragm operated safety valve with adjustable regulator in inlet port
FR2447573B1 (en) * 1979-01-24 1985-08-16 Briffault Sa GAS REGULATOR
US4830046A (en) * 1988-04-22 1989-05-16 Hose Specialties/Capri, Inc. Excess flow control valve
FR2654177B1 (en) * 1989-11-03 1992-02-07 Briffault Sa SECURITY GAS REGULATOR WITH REGARD TO EXCESS PRESSURE.
FR2741137B1 (en) * 1995-11-10 1998-01-23 Anciens Etablissements Maurice SAFETY LOCKING DEVICE FOR PIPES CARRYING GASEOUS FLUIDS

Also Published As

Publication number Publication date
ITGE20010058A1 (en) 2002-12-27
FR2811399B1 (en) 2003-05-16
FR2811399A1 (en) 2002-01-11

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