WO2022148520A1 - Régulateur de pression de gaz - Google Patents

Régulateur de pression de gaz Download PDF

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Publication number
WO2022148520A1
WO2022148520A1 PCT/EP2021/000110 EP2021000110W WO2022148520A1 WO 2022148520 A1 WO2022148520 A1 WO 2022148520A1 EP 2021000110 W EP2021000110 W EP 2021000110W WO 2022148520 A1 WO2022148520 A1 WO 2022148520A1
Authority
WO
WIPO (PCT)
Prior art keywords
membrane
lever
gas pressure
sub
components
Prior art date
Application number
PCT/EP2021/000110
Other languages
German (de)
English (en)
Inventor
Uwe Armbruster
Alexander Brelewski
Original Assignee
Truma Gerätetechnik GmbH & Co. KG
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 Truma Gerätetechnik GmbH & Co. KG filed Critical Truma Gerätetechnik GmbH & Co. KG
Publication of WO2022148520A1 publication Critical patent/WO2022148520A1/fr

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
    • G05D16/0683—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
    • G05D16/0686—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 characterised by the form of the lever

Definitions

  • the present invention relates to a gas pressure regulator having a housing, a diaphragm, a control element and a lever, the housing having an inlet and an outlet, a low-pressure chamber being located between the inlet and the outlet, the diaphragm partially delimiting the low-pressure chamber where in which the control element and the membrane are designed and coordinated in such a way that a movement of the control element affects the membrane, the lever being mechanically coupled to the control element, and the lever consisting of at least two subcomponents, the lever being a spring component having net, and wherein the two sub-components against a spring force of the spring component are movable relative to each other.
  • DE 715453 A discloses a generic gas pressure regulator.
  • Gas pressure regulators are described, for example, in DE 102019 103201 A1 or WO 2020/030398 A1.
  • the regulators reduce the gas pressure originating from a gas source to a gas pressure for the consumers downstream. This happens via a low-pressure chamber, which is partly delimited by a movable membrane (alternative name is diaphragm).
  • the diaphragm is spring-loaded and moves up and down in accordance with the pressure in the low-pressure chamber.
  • the membrane is mechanically connected to a control element.
  • the control element is in turn coupled to a lever which, in one position, closes the low-pressure chamber on the inlet side via a sealing element.
  • the gas is, for example, liquid gas (LPG, liquefied petroleum gas or autogas), propane or butane.
  • LPG liquid gas
  • the pressure on the inlet side is between 0.3 bar and 16 bar.
  • the pressure on the outlet side is usually between 28 mbar and 40 mbar.
  • a pressure of 150 mbar is applied on the outlet side.
  • the membrane moves and deflects the aforesaid lever, which presses the sealing element against a seat and thus closes the inlet.
  • the deflection of the components of the gas pressure regulator during the pressure test could lead to severe material stress.
  • the object on which the invention is based is to propose a gas pressure regulator that allows a pressure test that is as gentle as possible on the components and whose components are as compact and simple as possible for assembly.
  • the invention solves the problem with a gas pressure regulator, which is characterized in that the spring component is arranged in a cavity formed by the two subcomponents.
  • the lever is designed in several parts. In this case, at least two sub-components are designed and arranged such that they can be moved (or alternatively: moved) relative to one another. The two sub-components can preferably only be moved in relation to one another when a predetermined limit value for an acting force is exceeded. This has the advantage that the sub-components behave as a unit up to the limit value, which is usually undershot during normal use, and that the lever then - for the special case of the pressure test - more or less folds apart.
  • the unfolding prevents an excessive force from acting on the lever or components that are operatively connected to the lever.
  • the spring component can be used to set the limit value from which the subcomponents can be moved relative to one another. Since the spring component is located in a cavity formed by the subcomponents, the three components result in a compact overall unit that is easier to install for production.
  • One embodiment consists in that the two sub-components can be rotated relative to one another about an axis of rotation. Since the sub-components can be rotated in relation to one another, movement sequences of the sub-components can be implemented in different directions.
  • the axis of rotation is also the axis of rotation about which the lever is arranged in the housing so that it can rotate.
  • the spring force of the spring component is directed in such a way that the two subcomponents abut against one another in a normal state.
  • the spring component presses one subcomponent against another subcomponent until it stops.
  • One embodiment consists in that one sub-component of the two sub-components moves in the direction of the membrane in a deflection state.
  • the space for movement in the direction of the membrane is expanded due to the multiple parts of the lever, without this leading to a loading of the component lever itself.
  • the deflection state is thus the state in which a force acts on the lever that is above the adjustable limit value.
  • the subcomponents are removed from the relative arrangement to one another that they assume in the normal state.
  • the lever is mechanically coupled to a sealing element, and that the sealing element is arranged between the inlet and the low-pressure chamber.
  • the sealing element is pressed by the lever onto a seat which includes an access point for the inlet to the low-pressure chamber.
  • This type of gas pressure regulator is disclosed, for example, in the documents DE 10 2019 103 201 A1 or WO 2020/030398 A1 mentioned at the outset.
  • the spring force of the spring component acts in a direction in which the membrane moves.
  • the spring component is thus essentially aligned in the direction in which the membrane moves, ie perpendicular to the surface of the membrane.
  • the spring force of the spring component acts parallel to the membrane.
  • the spring component is thus aligned essentially parallel to the membrane or to the membrane plane.
  • FIG. 1 shows a section through an embodiment of a gas pressure regulator with a first embodiment of the lever
  • Fig. 2 shows a three-dimensional representation of the first embodiment of the lever of Fig. 1,
  • Fig. 3 shows a section through the lever of Fig. 2
  • Fig. 4 is a spatial representation of a second embodiment of the lever
  • Fig. 5 shows a section through the lever of Fig. 4.
  • 1 shows a section through a gas pressure regulator 1.
  • a low-pressure chamber 22 Located within the housing 2 between an inlet 20 and an outlet 21 for the gas is a low-pressure chamber 22 in which the gas pressure present at the inlet 20 is reduced.
  • the low-pressure chamber 22 is partially delimited by a movable membrane 3, which moves in dependence on the pressure.
  • the membrane 3 surrounds a stamp-shaped control element 4 which protrudes through the center of the membrane 3 .
  • the membrane 3 and the possibility of changing the volume of the low-pressure chamber 22 through it, as well as the control element 4, which is connected to a lever 5, serve to regulate the pressure.
  • the lever 5 is rotatably mounted in the housing 2 and closes the inlet 2 into the low-pressure chamber 22 via a sealing element 6. On the other side, the lever 5 rests on a further plunger 7, which is arranged flush with the control element 4 and on which is also affected by the gas pressure present at the inlet 20 .
  • the lever 5 has two sub-components 50, 51 and a spring element 52.
  • the spring element 52 is located in a cavity 53, which is formed by the two sub-components 50, 51, and causes the two sub-components 50, 51 abut each other.
  • the spring force of the spring element 52 defines a limit value, exceeding which results in the subcomponent 51 connected here to the control element 4 moving relative to the other subcomponent 50 which is coupled to the sealing element 6 .
  • the movement consists in a rotation about the axis of rotation 54, about which the lever 5 is rotatably mounted overall.
  • the lever 5 thus moves as a unit up to the limit value and from this limit value the one sub-component 51 rotates relative to the other sub-component 50.
  • the movement takes place in the direction of the membrane 3.
  • FIG. 1 The lever of FIG. 1 is shown spatially in FIG. 2 and in section in FIG. Both figures are therefore described together.
  • the partial component 50 located here on the right side has a receiving space in which the sealing element is arranged in the assembled state (cf. FIG. 1).
  • This sub-component 50 is when it is exceeded - caused by the spring force of the Fe derelements 52 - limit value of the applied force is not substantially moved, so it is subsequently a more stationary component in the deflection state.
  • the other subcomponent 51 is in mechanical contact with the control element (see FIG. 1) in the assembled state and rotates about the axis of rotation 54 relative to the other subcomponent 50 in the direction of the membrane (see FIG. 1) when the limit value is exceeded.
  • a hollow space 53 accommodating the spring element 52 is located between the two partial components 50 , 51 .
  • the spring element 52 is aligned in a direction which does not deviate too much from the perpendicular to the diaphragm 4.
  • the spring element 4 is thus aligned essentially in the direction in which the membrane 4 moves.
  • the spring element 52 is arranged approximately parallel to the membrane 3.
  • FIG. 4 and 5 it can be seen that the spring element 52 presses the sub-component 51 facing the membrane (see FIG. 1) in the normal state against the further sub-component 50 with the receiving space for the sealing element (see FIG. 1). If the acting force increases above the limit value specified by the spring element 52, the subcomponent 51 connected to the control element (see FIG. 1) compresses the spring element 52 and rotates about the axis of rotation 54. The rotation takes place clockwise in direction the - not shown here - membrane. It can also be seen that the two subcomponents 50, 51 form the cavity 53 for the spring element 52.

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Fluid Pressure (AREA)

Abstract

La présente invention concerne un régulateur de pression de gaz (1). Un boîtier (2) comprend une entrée (20) et une sortie (21), entre lesquelles se trouve une chambre basse pression (22). Une membrane (3) délimite partiellement la chambre basse pression (22), un mouvement d'un élément de commande (4) affectant la membrane (3). Un levier (5) est accouplé mécaniquement à l'élément de commande (4) et est constitué de deux sous-composants (50, 51) qui peuvent être déplacés l'un par rapport à l'autre à l'encontre d'une force élastique d'un composant de ressort (52). Selon l'invention, le composant de ressort (52) est disposé dans une cavité (53) formée par les deux sous-composants (50, 51).
PCT/EP2021/000110 2021-01-11 2021-09-21 Régulateur de pression de gaz WO2022148520A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102021000070.6A DE102021000070A1 (de) 2021-01-11 2021-01-11 Gasdruckregler
DE102021000070.6 2021-01-11

Publications (1)

Publication Number Publication Date
WO2022148520A1 true WO2022148520A1 (fr) 2022-07-14

Family

ID=78032383

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2021/000110 WO2022148520A1 (fr) 2021-01-11 2021-09-21 Régulateur de pression de gaz

Country Status (2)

Country Link
DE (1) DE102021000070A1 (fr)
WO (1) WO2022148520A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE715453C (de) 1938-09-23 1941-12-22 Hessenwerk Rudolf Majert Komm Druckminderer fuer die Entspannung hochgespannter und verfluessigter Gase
DE1814030A1 (de) * 1967-12-12 1969-06-19 Bryan Donkin Co Ltd Gasdruckregler
DE19952610A1 (de) * 1998-11-24 2000-05-25 Fiorentini Minireg S P A Sperrventil für niedrigen und hohen Druck
EP3584478A1 (fr) * 2018-06-18 2019-12-25 Clesse Industries Détendeur à gaz
WO2020030396A1 (fr) 2018-08-06 2020-02-13 Unilever N.V. Composition topique
WO2020030398A1 (fr) 2018-08-09 2020-02-13 Truma Gerätetechnik GmbH & Co. KG Régulateur de pression de gaz
DE102019103201A1 (de) 2019-02-08 2020-08-13 Truma Gerätetechnik GmbH & Co. KG Gasdruckregler

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE715453C (de) 1938-09-23 1941-12-22 Hessenwerk Rudolf Majert Komm Druckminderer fuer die Entspannung hochgespannter und verfluessigter Gase
DE1814030A1 (de) * 1967-12-12 1969-06-19 Bryan Donkin Co Ltd Gasdruckregler
DE19952610A1 (de) * 1998-11-24 2000-05-25 Fiorentini Minireg S P A Sperrventil für niedrigen und hohen Druck
EP3584478A1 (fr) * 2018-06-18 2019-12-25 Clesse Industries Détendeur à gaz
WO2020030396A1 (fr) 2018-08-06 2020-02-13 Unilever N.V. Composition topique
WO2020030398A1 (fr) 2018-08-09 2020-02-13 Truma Gerätetechnik GmbH & Co. KG Régulateur de pression de gaz
DE102019103201A1 (de) 2019-02-08 2020-08-13 Truma Gerätetechnik GmbH & Co. KG Gasdruckregler

Also Published As

Publication number Publication date
DE102021000070A1 (de) 2022-07-14

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