FR2873784A1 - Fluid expansion assembly with pressure reducers and regulators operated simultaneously for two fluid containers, notably for an oxy-acetylene trolley for welding and cutting operations - Google Patents

Fluid expansion assembly with pressure reducers and regulators operated simultaneously for two fluid containers, notably for an oxy-acetylene trolley for welding and cutting operations Download PDF

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Publication number
FR2873784A1
FR2873784A1 FR0451703A FR0451703A FR2873784A1 FR 2873784 A1 FR2873784 A1 FR 2873784A1 FR 0451703 A FR0451703 A FR 0451703A FR 0451703 A FR0451703 A FR 0451703A FR 2873784 A1 FR2873784 A1 FR 2873784A1
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France
Prior art keywords
pressure
fluid
expander
acetylene
assembly
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FR0451703A
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French (fr)
Inventor
Olivier Richard
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SAUVAGEAU COMMERCY SOUDURE SA
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SAUVAGEAU COMMERCY SOUDURE SA
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Priority to FR0451703A priority Critical patent/FR2873784A1/en
Publication of FR2873784A1 publication Critical patent/FR2873784A1/en
Pending legal-status Critical Current

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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
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/04—Arrangement or mounting of 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
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/08—Mounting arrangements for vessels
    • F17C13/084—Mounting arrangements for vessels for small-sized storage vessels, e.g. compressed gas cylinders or bottles, disposable gas vessels, vessels adapted for automotive use
    • F17C13/085—Mounting arrangements for vessels for small-sized storage vessels, e.g. compressed gas cylinders or bottles, disposable gas vessels, vessels adapted for automotive use on wheels
    • 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
    • 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
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0104—Shape cylindrical
    • 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
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/03—Orientation
    • F17C2201/032—Orientation with substantially vertical main axis
    • 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
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/058—Size portable (<30 l)
    • 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
    • F17C2205/01—Mounting arrangements
    • F17C2205/0123—Mounting arrangements characterised by number of vessels
    • F17C2205/013—Two or more vessels
    • 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
    • F17C2205/01—Mounting arrangements
    • F17C2205/0153—Details of mounting arrangements
    • F17C2205/0157—Details of mounting arrangements for transport
    • F17C2205/0161—Details of mounting arrangements for transport with wheels
    • 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
    • F17C2205/0308—Protective caps
    • 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
    • F17C2205/0329—Valves manually actuated
    • 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
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/011—Oxygen
    • 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
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/018—Acetylene
    • 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
    • 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
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/035—High pressure (>10 bar)
    • 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
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/04—Methods for emptying or filling
    • F17C2227/046—Methods for emptying or filling by even emptying or filling
    • 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
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/06—Controlling or regulating of parameters as output values
    • F17C2250/0605—Parameters
    • F17C2250/0626—Pressure
    • 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
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/05—Improving chemical properties
    • F17C2260/056—Improving fluid characteristics
    • 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
    • F17C2265/00—Effects achieved by gas storage or gas handling
    • F17C2265/02—Mixing fluids
    • F17C2265/025—Mixing fluids different fluids
    • 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
    • F17C2270/00—Applications
    • F17C2270/05—Applications for industrial use
    • F17C2270/0545—Tools

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Mechanically-Actuated Valves (AREA)

Abstract

A fluid expansion assembly, in particular for gas, comprises : (A) a first container (1) for fluid under pressure equipped with a first fluid pressure reducer (11); (B) a second container (2) of fluid under pressure equipped with a second pressure reducer (14); (C) a first pressure regulator acting on the first pressure reducer able to adjust the pressure level delivered by the first pressure reducer; (D) a second pressure regulator acting on the second container able to adjust the pressure level delivered by the second pressure reducer. It incorporates a system for transmission of movement (18, 20) cooperating with the first and second pressure regulators to allow a simultaneous regulation of the pressures delivered by the first and second pressure reducers, consecutively with an action of the single operator on the first pressure regulator. Independent claims are also included for : (A) an oxy-acetylene trolley incorporating the fluid expansion assembly; (B) utilisation of the oxy-acetylene trolley for a welding or cutting operation.

Description

L'invention porte sur un ensemble de détente pour chariot de typeThe invention relates to a detent assembly for a trolley of the type

oxyacétylénique permettant à l'opérateur de régler simultanément la pression de gaz  Oxyacetylene allowing the operator to simultaneously adjust the gas pressure

comburant, en particulier d'oxygène, et celle de gaz combustible, en particulier d'acétylène.  oxidant, in particular oxygen, and that of combustible gas, in particular acetylene.

Un chariot de type oxy-acétylénique se compose généralement d'un chariot de transport proprement dit sur lequel sont agencées deux bouteilles de gaz, à savoir une bouteille de gaz combustible et une bouteille de gaz io comburant.  An oxy-acetylene type trolley generally consists of a transport trolley itself, on which two gas cylinders are arranged, namely a fuel gas cylinder and an oxidizing gas cylinder.

Habituellement, chaque bouteille de gaz est équipée d'un détendeur servant à ajuster la pression de sortie au niveau de pression souhaité.  Usually, each gas cylinder is equipped with a pressure regulator for adjusting the outlet pressure to the desired pressure level.

Actuellement, l'opérateur règle tout d'abord l'un des détendeurs, puis l'autre détendeur. Ce réglage reste sur l'initiative de l'opérateur, respectant ou non les consignes d'utilisation de constructeur.  Currently, the operator first sets one of the regulators, then the other regulator. This setting remains on the initiative of the operator, respecting or not the manufacturer's operating instructions.

Or, un non-respect de ces consignes peut entraîner des dysfonctionnements graves, par exemple un débit faible d'un des gaz au regard de la buse utilisée peut entrainer soit une surchauffe de l'extrémité de la buse, soit une rentrée de flamme préjudiciable au bon fonctionnement de l'ensemble, pouvant occasionner une destruction du détendeur à combustible. Dans certains cas, cette remontée de flamme peut même se propager jusqu'à l'intérieur de la bouteille d'acétylène avec toutes les conséquences que cela implique...  However, a non-compliance with these instructions can lead to serious malfunctions, for example a low flow rate of one of the gases with respect to the nozzle used can cause either an overheating of the end of the nozzle or a damaging back flame the proper functioning of the assembly, which may cause destruction of the fuel regulator. In some cases, this rise of flame can even spread to the inside of the acetylene bottle with all the consequences that implies ...

Le problème qui se pose alors est de proposer un système permettant d'éviter de tels problèmes, c'est à dire un système obligeant l'opérateur à opérer un réglage correct des pression des deux gaz délivrés par les bouteilles de gaz, en particulier de l'oxygène et de l'acétylène utilisables pendant une opération de soudage ou coupage thermique au moyen d'un chalumeau ou analogue.  The problem that arises then is to propose a system making it possible to avoid such problems, that is to say a system obliging the operator to make a correct adjustment of the pressures of the two gases delivered by the gas bottles, in particular oxygen and acetylene usable during a welding operation or thermal cutting by means of a torch or the like.

La solution de l'invention est alors un ensemble de détente de fluide, en particulier de gaz, comprenant: - un premier récipient de fluide sous pression équipé d'un premier détendeur de fluide, - un deuxième récipient de fluide sous pression équipé d'un deuxième détendeur de fluide, - des premiers moyens de réglage de pression agissant sur le premier détendeur de manière à pouvoir ajuster le niveau de pression délivré par ledit premier détendeur de fluide, - des deuxième moyens de réglage de pression agissant sur le deuxième détendeur de manière à pouvoir ajuster le niveau de pression délivré par ledit deuxième détendeur de fluide, caractérisé en ce qu'il comporte un sytème de transmission de mouvement io coopérant avec les premiers moyens de réglage de pression et avec les deuxième moyens de réglage de pression de manière à permettre un réglage simultané des pressions délivrées par lesdits premier et deuxième détendeurs de fluide, consécutivement à l'actionnement par l'opérateur uniquement des premiers moyens de réglage de pression.  The solution of the invention is then an expansion assembly of fluid, in particular gas, comprising: - a first pressure fluid container equipped with a first fluid expander, - a second pressure fluid container equipped with a second fluid expander; first pressure regulating means acting on the first expander so as to adjust the pressure level delivered by said first fluid expander; second pressure adjusting means acting on the second expander valve; in such a way as to be able to adjust the pressure level delivered by said second fluid expander, characterized in that it comprises a movement transmission system which co-operates with the first pressure adjustment means and with the second pressure adjustment means in such a way that to allow a simultaneous adjustment of the pressures delivered by said first and second fluid expander, consecutive only when the operator actuates only the first pressure adjustment means.

Selon le cas, l'ensemble de l'invention peut comprendre l'une ou plusieurs des caractéristiques suivantes: - les premiers moyens de réglage de pression comprennent un volant rotatif dont la manoeuvre par l'opérateur permet d'agir sur un clapet de détente du premier détendeur.  As the case may be, the assembly of the invention may comprise one or more of the following features: the first pressure adjustment means comprise a rotary handwheel, the operation of which by the operator makes it possible to act on a relief valve the first regulator.

- le système de transmission de mouvement comporte au moins un élément de jonction reliant les premiers et deuxième moyens de réglage de pression.  - The motion transmission system comprises at least one connecting element connecting the first and second pressure adjustment means.

- le système de transmission de mouvement comporte un flexible. - le système de transmission de mouvement comporte une roue à crémaillère.  the motion transmission system comprises a hose. the motion transmission system comprises a rack-and-pinion wheel.

- le premier récipient est une bouteille de gaz comburant et le deuxième récipient est une bouteille de gaz combustible.  the first container is a combustion gas cylinder and the second container is a fuel gas cylinder.

L'invention porte aussi sur un chariot oxy-acétylénique comprenant un ensemble selon l'invention et l'utilisation d'un tel chariot ou d'un tel ensemble dans une opération de soudage ou coupage à la flamme au moyen d'un chalumeau.  The invention also relates to an oxy-acetylene carriage comprising an assembly according to the invention and the use of such a carriage or such an assembly in a welding operation or flame cutting by means of a torch.

Autrement dit, l'invention permet à l'opérateur de régler les pressions d'oxygène et d'acétylène simultanément en utilisant uniquement le volant de détente du détendeur d'oxygène.  In other words, the invention allows the operator to adjust the oxygen and acetylene pressures simultaneously using only the expansion valve of the oxygen regulator.

Comme illustré sur les figures ci-annexées, selon l'invention, afin de réaliser le réglage simultané des pressions de gaz combustible et de gaz comburant, on peut utiliser un système 20 du type à roue 21 et crémaillère 22, comme visible sur les figures 1 et 2.  As illustrated in the appended figures, according to the invention, in order to achieve the simultaneous adjustment of the fuel gas and combustion gas pressures, it is possible to use a system 20 of the wheel 21 and rack 22 type, as can be seen in the figures 1 and 2.

Un tel système permet de récupérer le mouvement de rotation engendré par la manipulation du volant de détente du détendeur oxygène et de le io transmettre par le même principe à la vis de détente du détendeur acétylène.  Such a system makes it possible to recover the rotational movement generated by the manipulation of the expansion wheel of the oxygen expander and to transmit it by the same principle to the expansion screw of the acetylene expansion valve.

En effet, ceci est possible car il a été remarqué que les pressions de sortie du détendeur oxygène seront constamment en relation avec les pressions de sortie du détendeur acétylène, comme visible dans le tableau ci-après: Pression acétylène Pression oxygène 0.32 1.3 0.36 1.45 0.4 1.6 0.45 1.8 0.5 2 0.55 2.2 En outre, la figure 1 montre un ensemble de soudage monté sur deux bouteilles, l'une 1 d'oxygène, l'autre 2 d'acétylène, équipées de deux détendeurs 11, 14 équipés chacun de deux manomètres 12, 13, 15, 16. Toutefois, pour un fonctionnement connu, tel qu'un ensemble de soudage alimentant un chalumeau soudeur, il est possible d'utiliser uniquement des manomètres haute pression. Le volant du détendeur oxygène est alors gradué avec deux échelles, l'une destinée aux pressions oxygène, l'autre aux pressions acétylène. De ce fait, l'opérateur dispose d'un ensemble de détente ayant uniquement la possibilité de régler les appareils aux pressions proposées.  Indeed, this is possible because it has been noticed that the outlet pressures of the oxygen expander will be constantly in relation with the outlet pressures of the acetylene expander, as can be seen in the table below: Acetylene pressure Oxygen pressure 0.32 1.3 0.36 1.45 0.4 1.6 0.45 1.8 0.5 2 0.55 2.2 In addition, Figure 1 shows a welding assembly mounted on two bottles, one of oxygen, the other 2 of acetylene, equipped with two regulators 11, 14 each equipped with two pressure gauges 12, 13, 15, 16. However, for known operation, such as a welding assembly feeding a welding torch, it is possible to use only high pressure gauges. The oxygen regulator flywheel is then graduated with two scales, one for oxygen pressures and the other for acetylene pressures. Therefore, the operator has a detent assembly having only the ability to adjust the devices to the proposed pressures.

Le réglage de pression se fait par actionnement du volant de commande de l'oxygène disposant d'une ouverture sur la face avant. Par cet orifice, l'opérateur peut voir deux chiffres, l'un représentant la pression d'oxygène et l'autre chiffre représentant la pression d'acétylène. Ainsi, en aucun cas, l'opérateur ne pourra régler des pressions autres que celles indiquées.  The pressure adjustment is made by operating the oxygen control wheel having an opening on the front face. Through this hole, the operator can see two digits, one representing the oxygen pressure and the other digit representing the acetylene pressure. Thus, under no circumstances, the operator will be able to adjust pressures other than those indicated.

Selon l'invention, la liaison entre les deux détendeurs 11, 14 se fait grâce à un flexible 18 permettant de transmettre le mouvement de rotation du détendeur 11 à l'autre 14.  According to the invention, the connection between the two regulators 11, 14 is made by means of a hose 18 making it possible to transmit the rotational movement of the expander 11 to the other 14.

La figure 3 représente une vue en coupe du détendeur 11 de la figure 1 où l'on voit que l'opérateur génère un mouvement de rotation sur le volant de détente du détendeur qui transmet ce mouvement au pignon, qui à son tour transforme ce mouvement de rotation en un mouvement de translation généré par une crémaillère.  FIG. 3 represents a sectional view of the regulator 11 of FIG. 1, in which it can be seen that the operator generates a rotational movement on the expansion wheel of the regulator which transmits this movement to the pinion, which in turn transforms this movement. rotation in a translation movement generated by a rack.

Cette crémaillère pousse dans la gaine, le flexible de translation qui transmet ce mouvement de translation à la crémaillère du détendeur d'acétylène, lequel transmet ce mouvement au pignon qui le transforme en une rotation équivalnte à celle que l'opérateur a opérée lorsqu'il a réglé le détendeur d'oxygène.  This rack pushes into the sheath, the translation hose which transmits this translational movement to the rack of the acetylene regulator, which transmits this movement to the pinion which transforms it into a rotation equivalent to that which the operator has operated when set the oxygen regulator.

Le flexible de translation est assimilé à un ressort de traction ayant pour caractéristique principale, une charge dont l'effort à produire le décollement des spires est supérieur à l'effort pour détendre le détendeur d'acétylène. Ceci est important lors de la détente des deux détendeurs.  The translational hose is likened to a tensile spring having the main characteristic, a load whose force to produce the detachment of the turns is greater than the effort to relax the acetylene expander. This is important when relaxing both regulators.

L'élément flexible garantit un minimun d'effort à donner au volant de détente du détendeur d'oxygène coopérant avec le détendeur d'acétylène. De ce fait, l'opérateur exerce un mouvement de rotation au volant de détente dont le couple résistant est égal au couple résistant que génére le mécanisme de détente du détendeur d'oxygène, augmenté du couple résistant que génére le mécanisme de détente du détendeur d'acétylène augmenté également des efforts de frottements que produit le glissement du flexible de translation dans sa gaine.  The flexible element ensures a minimum of effort to give to the expansion wheel of the oxygen expander cooperating with the acetylene expander. Therefore, the operator exerts a rotational movement to the steering wheel of which the resisting torque is equal to the resistant torque that generates the expansion mechanism of the oxygen expander, increased resistance torque that generates the expansion mechanism of the pressure regulator Acetylene also increases the frictional forces produced by the sliding of the translational hose in its sheath.

Les liaisons crémaillères/flexibles sont des liaisons vissées et bloquées en rotation pour garantir un non-déréglement.  Rack / flexible connections are screwed and locked in rotation to ensure non-deregulation.

Claims (8)

REVENDICATIONS 1. Ensemble de détente de fluide, en particulier de gaz, comprenant: - un premier récipient (1) de fluide sous pression équipé d'un premier détendeur (11) de fluide, - un deuxième récipient (2) de fluide sous pression équipé d'un deuxième détendeur (14) de fluide, - des premiers moyens de réglage de pression agissant sur le premier détendeur (11) de manière à pouvoir ajuster le niveau de pression io délivré par ledit premier détendeur (11) de fluide, - des deuxième moyens de réglage de pression agissant sur le deuxième détendeur (14) de manière à pouvoir ajuster le niveau de pression délivré par ledit deuxième détendeur (14) de fluide, caractérisé en ce qu'il comporte un sytème de transmission de mouvement (18, 20) coopérant avec les premiers moyens de réglage de pression et avec les deuxième moyens de réglage de pression de manière à permettre un réglage simultané des pressions délivrées par lesdits premier et deuxième détendeurs (11, 14) de fluide, consécutivement à l'actionnement par l'opérateur uniquement des premiers moyens de réglage de pression.  1. Expansion set of fluid, in particular gas, comprising: - a first container (1) of pressurized fluid equipped with a first expander (11) of fluid, - a second container (2) of pressurized fluid equipped with a second fluid expander (14); first pressure regulating means acting on the first expander (11) so as to adjust the pressure level delivered by said first fluid expander (11); second pressure regulating means acting on the second expander (14) so as to be able to adjust the pressure level delivered by said second fluid expander (14), characterized in that it comprises a motion transmission system (18, 20) cooperating with the first pressure regulating means and with the second pressure adjusting means so as to allow simultaneous adjustment of the pressures delivered by said first and second pressure regulators (11, 14). fluid, following the actuation by the operator only the first pressure adjustment means. 2. Ensemble selon la revendication 1, caractérisé en ce que les premiers moyens de réglage de pression comprennent un volant rotatif dont la manoeuvre par l'opérateur permet d'agir sur un clapet de détente du premier détendeur.  2. An assembly according to claim 1, characterized in that the first pressure adjustment means comprises a rotary wheel whose operation by the operator allows to act on an expansion valve of the first expander. 3. Ensemble selon la revendication 1 ou 2, caractérisé en ce que le système de transmission de mouvement comporte au moins un élément de jonction reliant les premiers et deuxième moyens de réglage de pression.  3. The assembly of claim 1 or 2, characterized in that the motion transmission system comprises at least one connecting element connecting the first and second pressure adjustment means. 4. Ensemble selon la revendication 1 à 3, caractérisé en ce que le système 30 de transmission de mouvement comporte un flexible. io  4. The assembly of claim 1 to 3, characterized in that the system 30 of motion transmission comprises a flexible. io 5. Ensemble selon la revendication 1 à 4, caractérisé en ce que le système de transmission de mouvement comporte une roue à crémaillère.  5. The assembly of claim 1 to 4, characterized in that the motion transmission system comprises a rack-and-pinion wheel. 6. Ensemble selon la revendication 1 à 5, caractérisé en ce que le premier 5 récipient est une bouteille de gaz comburant et le deuxième récipient est une bouteille de gaz combustible.  6. The assembly of claim 1 to 5, characterized in that the first container is a combustion gas cylinder and the second container is a fuel gas cylinder. 7. Chariot oxy-acétylénique comprenant un ensemble selon l'une des revendications 1 à 6.  7. oxy-acetylene trolley comprising an assembly according to one of claims 1 to 6. 8. Utilisation d'un chariot selon la revendication 7 ou d'un ensemble selon l'une des revendications 1 à 6 dans une opération de soudage ou coupage à la flamme au moyen d'un chalumeau.  8. Use of a carriage according to claim 7 or an assembly according to one of claims 1 to 6 in a welding operation or flame cutting by means of a torch.
FR0451703A 2004-07-29 2004-07-29 Fluid expansion assembly with pressure reducers and regulators operated simultaneously for two fluid containers, notably for an oxy-acetylene trolley for welding and cutting operations Pending FR2873784A1 (en)

Priority Applications (1)

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FR0451703A FR2873784A1 (en) 2004-07-29 2004-07-29 Fluid expansion assembly with pressure reducers and regulators operated simultaneously for two fluid containers, notably for an oxy-acetylene trolley for welding and cutting operations

Applications Claiming Priority (1)

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FR0451703A FR2873784A1 (en) 2004-07-29 2004-07-29 Fluid expansion assembly with pressure reducers and regulators operated simultaneously for two fluid containers, notably for an oxy-acetylene trolley for welding and cutting operations

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4460010A (en) * 1981-01-12 1984-07-17 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Station comprising two or more gas bottles for welding and other applications
FR2802281A1 (en) * 1999-12-14 2001-06-15 Air Liquide Mobile assembly esp for gas cylinders and welding gear comprises truck with wheeled frame and control lever

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4460010A (en) * 1981-01-12 1984-07-17 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Station comprising two or more gas bottles for welding and other applications
FR2802281A1 (en) * 1999-12-14 2001-06-15 Air Liquide Mobile assembly esp for gas cylinders and welding gear comprises truck with wheeled frame and control lever

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