FR2758174A1 - Tap for controlling flow of dangerous compressed gases - Google Patents

Tap for controlling flow of dangerous compressed gases Download PDF

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Publication number
FR2758174A1
FR2758174A1 FR9700066A FR9700066A FR2758174A1 FR 2758174 A1 FR2758174 A1 FR 2758174A1 FR 9700066 A FR9700066 A FR 9700066A FR 9700066 A FR9700066 A FR 9700066A FR 2758174 A1 FR2758174 A1 FR 2758174A1
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FR
France
Prior art keywords
equipment according
faucet equipment
seat
tap
faucet
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
FR9700066A
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French (fr)
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FR2758174B1 (en
Inventor
Jacques Mondragon
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Individual
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Individual
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Publication date
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Priority to FR9700066A priority Critical patent/FR2758174B1/en
Publication of FR2758174A1 publication Critical patent/FR2758174A1/en
Application granted granted Critical
Publication of FR2758174B1 publication Critical patent/FR2758174B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/30—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces specially adapted for pressure containers
    • F16K1/301—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces specially adapted for pressure containers only shut-off valves, i.e. valves without additional means
    • F16K1/302—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces specially adapted for pressure containers only shut-off valves, i.e. valves without additional means with valve member and actuator on the same side of the seat
    • 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/36—Valve members
    • F16K1/38—Valve members of conical shape
    • F16K1/385—Valve members of conical shape contacting in the closed position, over a substantial axial length, a seat surface having the same inclination

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lift Valve (AREA)

Abstract

Tap for the reception of compressed gas is characterised in that its seat (3) is in a non-aging plastic material. The truncated female surface of the seat wedges geometrically with truncated male surface of the end of the shut off valve rod (2) and forming an ideal confinement wall. A handle (6) in plastic material with a limited break-out torque is provided to prevent damage to the plastic seating.

Description

DESCRIPTION
La présente invention concerne un équipement de robinetterie pour récipients à gaz sous pression ainsi que les accessoires en matière plastique nécessaires pour sa mise en oeuvre.DESCRIPTION
The present invention relates to fitting equipment for pressurized gas containers as well as the plastic accessories necessary for its implementation.

On désigne ici par robinetterie un appareil mécanique monté à demeure sur un récipient et permettant de libérer ou d'arrêter l'écoulement d'un fluide, par la manoeuvre d'un volant (4) dont la rotation entraîne en translation tme tige (2) constituant la partie mâle mobile de la liaison statique obstruant la partie femelle constituant le siège en plastique (3) rapporté dans l'axe du corps (i). The term “valve” here designates a mechanical device permanently mounted on a container and making it possible to release or stop the flow of a fluid, by the operation of a flywheel (4) whose rotation causes in translation a rod (2 ) constituting the mobile male part of the static connection obstructing the female part constituting the plastic seat (3) attached in the axis of the body (i).

Jusqu'à ce jour, on n'utilisait que 2 principes pour l'obstruction d'un orifice d'écoulement sans faire référence aux lois bien connues de la mécanique des fluides ou de la viscosité (BERNOUILLI, POISEUILLE, REYNOLDS...). Until now, only 2 principles have been used for obstructing a flow orifice without referring to the well-known laws of fluid mechanics or viscosity (BERNOUILLI, POISEUILLE, REYNOLDS ...) .

Une seule page de dessins, numérotée Fig 1, Fig 2, Fig 3, complète cette description.A single page of drawings, numbered Fig 1, Fig 2, Fig 3, completes this description.

1") FIG 1 . Portée linéaire sans joint du type couteau
Forte pression de serrage par un pointeau métallique agissant dans l'axe du robinet sur la lèvre de l'orifice proprement dit, obturant le conduit d'écoulement usiné dans le corps, fonction unique: sectionnement de la veme. 1 ") FIG 1. Linear reach without knife-type seal
High clamping pressure by a metal needle acting in the axis of the tap on the lip of the orifice itself, closing the flow conduit machined in the body, unique function: cutting the veme.

Technique rudimentaire que l'on rencontre fréquemment.Rudimentary technique which one meets frequently.

Niveau d'étanchéité médiocre malgré la forte pression. Incidents lorsque le gaz est sale. Dégradation rapide de la portée.Poor sealing level despite the high pressure. Incidents when the gas is dirty. Rapid degradation of the range.

2") FIG 2. Surface plane à portée réduite
Forte pression de serrage par un clapet avec joint en matière plastique chargée agissant sur la tranche de l'orifice qui présente un bourrelet usiné, afin de diminuer l'aire de contact avec le joint, et augmenter la pression unitaire. Risque de surpression endommageant le joint et accélérant le vieillissement, fonction unique: sectionnement de la veine.2 ") FIG 2. Flat surface with reduced range
High clamping pressure by a valve with loaded plastic seal acting on the edge of the orifice which has a machined bead, in order to reduce the contact area with the seal, and increase the unit pressure. Risk of overpressure damaging the seal and accelerating aging, unique function: sectioning of the vein.

Technique moins rudimentaire que la précédente, utilisée surtout pour les gaz de l'air.Less rudimentary technique than the previous one, used mainly for air gases.

Niveau d'étanchéité se dégradant rapidement. Incidents lorsque le gaz est sale. Sealing level degrading rapidly. Incidents when the gas is dirty.

DESCRIPTION 3 ) FIG 3. DESCRIPTION 3) FIG 3.

Le principe d'étanchéité selon l'invention remédie aux défauts précédents par l'interposition d'un joint de forte épaisseur entre l'extrémité tronconique de la tige (2) et l'orifice du conduit pratiqué dans le corps (rep 1). Ce joint constitue le siège (rep 3). Son logement est usiné en partie B à la hauteur de la tubulure de sortie. Il est en matière plastique non vieillissante retenue en place par un filetage
L'extrémité tronconique de la tige (2) pénètre lors de la fermeture, à l'intérieur du siège et s'ajuste parfaitement dans celui-ci par suite de la correspondance géométrique inverse des 2 surfaces développables en contact, ce qui constitue une paroi de confinement idéale, fonction double réglage et sectionnement de veine.The sealing principle according to the invention remedies the above defects by interposing a very thick seal between the frustoconical end of the rod (2) and the orifice of the conduit formed in the body (rep 1). This joint constitutes the seat (rep 3). Its housing is machined in part B at the height of the outlet pipe. It is made of non-aging plastic material held in place by a thread
The frustoconical end of the rod (2) penetrates when closing, inside the seat and fits perfectly in it as a result of the reverse geometric correspondence of the 2 developable surfaces in contact, which constitutes a wall ideal containment, double adjustment function and vein sectioning.

L'étanchéité est obtenue sans pression en raison de la continuité de la matière et de l'écoulement laminaire et visqueux du fluide. La pression latérale très faible est entretenue par l'élasticité de la paroi du corps cylindrique et la réserve élastique de la matière du joint.The seal is obtained without pressure due to the continuity of the material and the laminar and viscous flow of the fluid. The very low lateral pressure is maintained by the elasticity of the wall of the cylindrical body and the elastic reserve of the gasket material.

Pour limiter l'effort de serrage, le volant (4) présente la possibilité d'introduction d'une douille (6) de poignée en matière plastique qui se brise lorsque le couple de serrage préréglé est atteint.To limit the tightening force, the handwheel (4) has the possibility of introducing a plastic handle socket (6) which breaks when the preset tightening torque is reached.

Un tissu filtrant, ajusté sur une crépine repère 5, vissé à l'entrée du robinet, arrête les particules solides en suspension dans le fluide et limite le diamètre des fuites au diamètre des vides de maille.A filter cloth, fitted on a screen strainer 5, screwed at the inlet of the tap, stops the solid particles in suspension in the fluid and limits the diameter of the leaks to the diameter of the mesh voids.

Un bouchon de sécurité repère 7, soigneusement ajusté sur la tubulure de sortie et immobilisé en fin de serrage par une rondelle frein repère 8, assure l'étanchéité du robinet en cas de rupture de la paroi de confinement.A safety stopper, item 7, carefully adjusted on the outlet pipe and immobilized at the end of tightening by a lock washer, item 8, seals the valve in the event of the containment wall breaking.

En modifiant l'étude des robinets de série existants, la présente invention permet à peu de frais, de porter leur fiabilité à 30 mois, soit un débit de fuite tolérée de 1 pascal-mètre cube par sec. ou 1 watt (au lieu de 1 à 3 mois actuellement dans les meilleures conditions).By modifying the study of existing series valves, the present invention allows inexpensively to bring their reliability to 30 months, ie a tolerated leakage rate of 1 pascal-cubic meter per sec. or 1 watt (instead of 1 to 3 months currently in the best conditions).

Domaine d'application : diamètre de veine fluide < 80 mm. Application area: fluid vein diameter <80 mm.

Claims (7)

REVENDICATIONS 1 - Equipement de robinetterie pour récipient à gaz comprimés caractérisé en ce que son siège repère 3 est en matière plastique non vieillissante.1 - Faucet equipment for compressed gas container characterized in that its reference seat 3 is made of non-aging plastic. 2 - Equipement de robinetterie selon la revendication I et caractérisé en ce que la surface femelle tronconique du siège (3) coïncide géométriquement avec la surface mâle tronconique de la tige repère 2 et constitue une paroi de confinement idéale.2 - Faucet equipment according to claim I and characterized in that the frustoconical female surface of the seat (3) geometrically coincides with the frustoconical male surface of the reference rod 2 and constitutes an ideal confinement wall. 3 - Equipement de robinetterie selon revendications 1, 2 précédentes et caractérisé par une fonction double réglage et sectionnement de la veine.3 - Faucet equipment according to claims 1, 2 above and characterized by a double adjustment function and sectioning of the vein. 4 - Equipement de robinetterie selon revendications 1, 2, 3 précédentes et caractérisé par la présence à l'entrée d'un tissu (non représenté), ajusté sur la crépine repère 5.4 - Faucet equipment according to claims 1, 2, 3 above and characterized by the presence at the inlet of a fabric (not shown), adjusted on the screen strainer 5. 5 - Equipement de robinetterie selon revendications 1, 2, 3, 4 précédentes et caractérisé par l'usinage intérieur du corps conservant le régime laminaire et visqueux de l'écoulement.5 - Faucet equipment according to claims 1, 2, 3, 4 above and characterized by the internal machining of the body retaining the laminar and viscous flow regime. 6 - Equipement de robinetterie selon revendications 1, 2, 3, 4, 5 précédentes et caractérisé par la possibilité de limiter le couple de serrage à l'aide d'une poignée en matière plastique, qui se brise en cas de dépassement de celui-ci en protégeant la continuité de la paroi de confinement.6 - Faucet equipment according to claims 1, 2, 3, 4, 5 above and characterized by the possibility of limiting the tightening torque using a plastic handle, which breaks if it is exceeded- ci by protecting the continuity of the containment wall. 7 - Equipement de robinetterie selon revendications 1, 2, 3, 4, 5, 6 précédentes et caractérisé par la possibilité d'obturer la tubulure de sortie par un bouchon vissé repère 7, immobilisé en fin de serrage par une rondelle frein repère 8. 7 - Faucet equipment according to claims 1, 2, 3, 4, 5, 6 above and characterized by the possibility of closing the outlet pipe by a screwed stopper mark 7, immobilized at the end of tightening by a lock washer mark 8.
FR9700066A 1997-01-07 1997-01-07 VALVE EQUIPMENT FOR DANGEROUS GASES UNDER PRESSURE Expired - Fee Related FR2758174B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9700066A FR2758174B1 (en) 1997-01-07 1997-01-07 VALVE EQUIPMENT FOR DANGEROUS GASES UNDER PRESSURE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9700066A FR2758174B1 (en) 1997-01-07 1997-01-07 VALVE EQUIPMENT FOR DANGEROUS GASES UNDER PRESSURE

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FR2758174A1 true FR2758174A1 (en) 1998-07-10
FR2758174B1 FR2758174B1 (en) 1999-10-01

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2860570A1 (en) * 2003-10-03 2005-04-08 Clesse Ind Domestic use gas bottles valve control device, has plate coming into contact with on-off switch, under deformation effect, when torque, preset by manufacturer of bottle, is applied to flywheel of valve

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2692750A (en) * 1950-03-31 1954-10-26 Alloy Steel Products Company I Needle valve seating arrangement
DE2150034A1 (en) * 1971-10-07 1973-04-12 Offenbacher Praez Sdrehteile G Conical safety valve seating - esp for pit props is entirely plastics faced
FR2735203A3 (en) * 1995-06-09 1996-12-13 Mondragon Jacques Tap for pressurised or liquefied gas container

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2692750A (en) * 1950-03-31 1954-10-26 Alloy Steel Products Company I Needle valve seating arrangement
DE2150034A1 (en) * 1971-10-07 1973-04-12 Offenbacher Praez Sdrehteile G Conical safety valve seating - esp for pit props is entirely plastics faced
FR2735203A3 (en) * 1995-06-09 1996-12-13 Mondragon Jacques Tap for pressurised or liquefied gas container

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2860570A1 (en) * 2003-10-03 2005-04-08 Clesse Ind Domestic use gas bottles valve control device, has plate coming into contact with on-off switch, under deformation effect, when torque, preset by manufacturer of bottle, is applied to flywheel of valve

Also Published As

Publication number Publication date
FR2758174B1 (en) 1999-10-01

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