EP3434963A1 - Dispositif de protection de soupape pour réservoir de gaz comprimé - Google Patents

Dispositif de protection de soupape pour réservoir de gaz comprimé Download PDF

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Publication number
EP3434963A1
EP3434963A1 EP18178283.0A EP18178283A EP3434963A1 EP 3434963 A1 EP3434963 A1 EP 3434963A1 EP 18178283 A EP18178283 A EP 18178283A EP 3434963 A1 EP3434963 A1 EP 3434963A1
Authority
EP
European Patent Office
Prior art keywords
section
valve protection
central axis
valve
protection device
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
EP18178283.0A
Other languages
German (de)
English (en)
Other versions
EP3434963B1 (fr
Inventor
Alexander Kriese
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.)
Messer Gaspack GmbH
Original Assignee
Messer Gaspack GmbH
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 Messer Gaspack GmbH filed Critical Messer Gaspack GmbH
Publication of EP3434963A1 publication Critical patent/EP3434963A1/fr
Application granted granted Critical
Publication of EP3434963B1 publication Critical patent/EP3434963B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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

Definitions

  • the invention relates to a valve protection device for compressed gas cylinders, having a fastening portion which is equipped with means for fastening to a neck thread of a compressed gas cylinder and having a central bore, and having a connectable to the attachment portion valve protection portion having a bottom side with a central bore for carrying a cylinder valve and a fixedly connected to the bottom side protection structure having at least one access opening for operating the cylinder valve, wherein after connecting the two sections, the central bores of the mounting portion and the bottom side are arranged to form a common central axis.
  • Compressed gas cylinders in which gases are stored at a pressure of, for example, 200 to 300 bar, usually have a bottleneck into which a removal valve (here called the cylinder valve) is firmly screwed.
  • the bottleneck is also usually equipped with an external thread (called neck thread here), on which a valve protection device to protect the cylinder valve against impact etc. can be screwed.
  • a known valve protection device is for example a steel cap, which protects the cylinder valve, in particular during transport of the compressed gas cylinder. If the accessibility of the cylinder valve is to be possible when the valve protection device is attached, the valve protection device is equipped with one or more access openings.
  • valve protection device When screwing on a valve protection device, it is not possible to define the angular position of the valve protection device precisely because they are screwed more or less strongly and the incision start of the thread is not defined and thus there is a significant residual uncertainty in the angular position.
  • the exact angular position plays no role in simple protective devices such as the aforementioned steel cap.
  • the angular position of the access opening must correspond to the connection of the cylinder valve, which occasionally has to be paid for by the strength of the screw connection of the valve protection device on the bottle neck. That can indeed be remedied by the valve protection device is equipped with multiple and / or oversized access openings, but this affects the stability and protection of the valve protection device.
  • the protective device is constructed of two sections in a vertical pitch, which are laterally mounted on a mounting portion on the neck thread and fixed together by means of a clamping device.
  • the disadvantage of such an arrangement consists in an increased installation effort and in a festistsmechanisch weakened structure.
  • valve protection device for gas cylinders
  • the lower portion here called attachment portion
  • valve protection portion consists of an annular member with an internal thread which is screwed onto the neck thread in the usual way
  • the upper portion here called valve protection portion
  • the attachment portion has one or more access openings for operating the cylinder valve and one with a central opening Bottom side equipped to perform the bottle valve for connection to the attachment portion.
  • the attachment portion has a number of circumferentially uniformly spaced, vertically protruding louvers which cooperate with complementarily protruding louvers on the underside of the bottom side of the valve protection portion.
  • This arrangement makes it possible to adapt the angular position of the access openings of the protective device to the position of the respective removal valve with a consistently stable attachment of the valve protection device on the gas cylinder.
  • the protective device is very expensive in construction, and the assembly cost is very high.
  • Object of the present invention is therefore to provide a securing element for cylinder valves for compressed gas cylinders, which can be fixed in one of a plurality of angular positions relative to a longitudinal axis of the compressed gas cylinder and which is simple in construction and easy to assemble.
  • a valve protection device of the type and purpose mentioned is according to the invention thus characterized in that the attachment portion and the valve protection portion are equipped with mutually corresponding connection means which are formed so that between each one connecting means of a section and a connecting means of the other section an axially fixed connection produced is, wherein at least the connecting means of a portion are arranged rotationally symmetrical with respect to a rotation about the central axis and at a rotation of the two sections against each other around the central axis at least two angular positions exist, in which a plurality of connecting means of one section are connectable to connecting means of the other section.
  • the central bore of the mounting portion has an internal thread for screwing onto the Neck thread on, or the attachment portion is equipped with a clamping device for attachment to the neck thread.
  • the attachment of the valve protection section takes place on the attachment section, wherein the mutually acting connection sections allow an axially fixed, ie against tensile load along the central axis securing connection.
  • a central axis is here - after connecting the two sections of the valve protection device coinciding - center axis understood by the central bore of the mounting portion and the central axis through the central bore of the bottom side of the valve protection section.
  • a non-rotatable connection (against rotation about the central axis of the two sections against each other) is achieved by making two or more connections between connecting means in the allowed angular positions.
  • An additional clamping device for axial fixation is not required.
  • At least the connecting means are rotationally symmetrically arranged in a section about the central axis, so that the number of possible angular positions at which the two sections can be fastened together according to the invention corresponds to the count of the respective rotational symmetry.
  • the access opening in the valve protection section can be adapted to the position of the cylinder valve.
  • an advantageous embodiment of the invention provides that the number of connecting means is different, wherein either the number of connecting means in the attachment portion is greater than the number of connecting means in the valve protection portion or vice versa, the number of connecting means in the valve protection portion is greater than the number of connecting means in the attachment section.
  • at least three connecting means should be present, on which an axially fixed connection can be made with three connecting means of the other section.
  • a particularly advantageous embodiment of the invention is characterized in that the attachment portion and the valve protection portion are each equipped with a plurality of radially equidistantly spaced from the central axis recesses, wherein the recesses of at least one portion are arranged at equal angular intervals and with the recesses of the other portion correspond in such a way that with a rotation about the central axis against each other at least in two angular positions a plurality of recesses of the one portion with a plurality of recesses of the other portion are aligned with one another and can be positively connected firmly with fastening means.
  • recesses Holes, grooves, lugs, slots, etc. are to be understood here as recesses, which are arranged in the fastening section or valve protection section (hereinafter referred to collectively as "sections").
  • a fastener should be understood here means generally with which an axial fixation of the two recesses can be made, such as screws, spring bolts, protruding buttons, etc.
  • both the attachment portion and the bottom side of the valve protection portion are each equipped with a plurality of recesses in the form of bores.
  • a number of holes in the mounting portion and a number of holes in the bottom side are brought into an aligned position and fixed by means of suitable fastening means, for example by means of a screw.
  • the holes of a section may be expediently equipped with internal threads.
  • a preferred embodiment provides that holes are provided as recesses, wherein preferably the holes of a section are provided with threads.
  • the connection of the two parts is then carried out in a particularly simple manner in that a screw is passed through the unthreaded bore and screwed into the thread of the bore of the other section.
  • locking grooves arranged parallel to the central axis extend completely through the outer wall of the fastening section; when connecting the two sections with each other, the latching hooks engage behind the entire fastening section in the region of the latching grooves and thus ensure axial fixation of the two sections.
  • other connections can also be used on the recesses, for example by clamping.
  • a further preferred embodiment of the invention which can be used in addition to or instead of the above embodiments, is characterized in that the attachment portion or the valve protection portion is equipped with a plurality of parallel and at the same radial distance from the central axis projecting bolt arranged with corresponding Holes in the other section correspond such that upon rotation about the central axis of the two sections against each other at least in two Angular positions the bolts through the holes are feasible and then with securing elements axially against slipping out of the holes can be hedged.
  • the Bolzano can be equipped with a split pin and the axial Fixation takes place with a corresponding sapwood.
  • a positioning aid is provided for axial fixation.
  • the positioning aid for example a projecting flange, the central axes of the central openings of the fastening section and the bottom side are brought into conformity before the connection of the two sections.
  • Preferred materials for the attachment portion and / or the valve protection portion are metal, plastic or a combination of these two materials.
  • Metal ensures a high stability of the valve protection device, plastic leads to a comparatively low weight.
  • the two sections may consist of the same material, or of different materials, for example, the attachment portion of metal and the valve protection portion made of plastic.
  • valve protection device 1 comprises two interconnectable sections 2, 3, namely a mounting portion 2 for attachment to a compressed gas cylinder and a connectable to the mounting portion 2 valve protection section. 3
  • the annular disk-shaped fastening section 2 in the exemplary embodiment has a central bore 4 with an internal thread 5 for screwing onto the neck thread of a compressed gas cylinder.
  • the size of the central bore 4 is determined by the neck thread and is for example in conventional gas cylinders ⁇ 80 ⁇ 2.309 (Whitworth).
  • the valve protection section 3 has a bottom side 6, which is equipped with a central bore 7.
  • the diameter of the central bore 7 is designed so that a (not shown here) cylinder valve can be passed through the bore 7. In general, the diameter of the central bore is therefore larger than the diameter of the central bore 4.
  • At the bottom side 6 of the valve protection portion 3 is connected in the manner described in more detail below with the mounting portion 2.
  • a plurality of holes 10, in the embodiment, sixteen, at equal angular intervals and in each case the same radial distance from the central axis 8 are arranged in the attachment portion 2.
  • bores 11 are radially spaced from the bore 7, wherein the radial distance of the bores 11 from the central axis 12 of the central bore 7 is the same as the radial distance of the bores 10 from the central axis 8.
  • the number of holes 10 in the attachment portion 2 may be equal to or different from the number of holes in the bottom side 6.
  • the holes 11 are present in the bottom side 6 at the same angular intervals, however, it is necessary that the angular distances of the holes 11 are dimensioned so that when - described in more detail below - connecting the two sections 2, 3 together Attachment section 2 a plurality of holes 10th are present, which are aligned with each other with the holes 11 at a suitable angular position of the two sections 2, 3.
  • the valve protection section 3 comprises a protective structure 14 for protecting a cylinder valve, not shown here, and optionally additional fittings connected to the cylinder valve (also not shown here), such as pressure reducers, line connections or indicating instruments.
  • the protective structure 14 has at least one access opening 15, through which the cylinder valve and / or the internals mentioned are made accessible to an operator.
  • the protective structure 14 is a hollow cylinder made of an impact-resistant and impact-resistant material, in particular made of metal or plastic, which is fixed to the bottom side 6, for example by welding, around the cut-out access opening 15.
  • the present invention possible embodiments of protective structure and access opening are not limited thereto, but depend on the requirements in terms of nature, size and arrangement of the internals and the required protection.
  • the attachment portion 2 For mounting the valve protection device 1 on a gas cylinder, the attachment portion 2 is first screwed onto the neck valve of the gas cylinder. Following this, a cylinder valve, for example a VIPR, is firmly screwed into the bottleneck of the gas cylinder. Then, the valve protection portion 3 is placed with the bottom side 6 on the mounting portion 2, wherein the mounted cylinder valve is guided through the central bore 7 and the axes 8, 12 are brought into line. The angular position of the two sections 2, 3 against each other is chosen so that the holes 11 in the bottom side 6 with the holes 10, and a corresponding number of holes 10, are aligned in the mounting portion 2.
  • a cylinder valve for example a VIPR
  • the sections are connected to the mutually aligned bores 10, 11 by means of suitable connecting means, for example with a (not shown here) threaded rod, each guided by two aligned holes 10, 11 and then fixed by means screwed on both end faces nuts.
  • suitable connecting means for example with a (not shown here) threaded rod, each guided by two aligned holes 10, 11 and then fixed by means screwed on both end faces nuts.
  • the holes 10 or the holes 11 may be equipped with threads and the attachment by means of Screws which are through the bore 10, 11 of the one section 2, 3, guided and screwed into the threaded bore 11, 10 of the other section 3, 2.
  • the angular position of the two sections 2, 3 against each other i. the angular position in a plane perpendicular to the axes 8, 10, are selected according to the number of holes 10.
  • an angular position is selected, which allows good accessibility of the cylinder valve and possibly other associated with this internals through the access opening 15.
  • Fig. 2 shows a - only partially shown valve protection device 1 'with a mounting portion 2' and a valve protection portion 3 'with an alternative way to connect the sections 2', 3 'together.
  • the sections 2 ', 3' are similar to the sections 2, 3 of the embodiment according to Fig. 1 constructed, ie, the mounting portion 2 'has a central bore with internal thread for screwing onto the neck thread of a compressed gas cylinder, and the valve protection portion 3' has a bottom side 6 'and a protective structure 14' on.
  • a plurality of locking grooves 18 are provided on the mounting portion 2 ', instead of or in addition to any still existing holes 10, which are arranged in the outer jacket 19 of the mounting portion 2' at equal angular intervals.
  • latching hooks 21 are arranged, for example, integrally formed with the bottom side 6' or welded, glued or screwed thereto.
  • the latching hooks 21 are made of a limited flexible material, such as plastic and correspond in their shape and size with the locking grooves 19.
  • the latching hooks 21 snap on the locking grooves 19 on the from the valve protection portion 3 'opposite bottom of the mounting portion 2', whereby the two sections 2 ', 3' are fixed against each other both in the axial and in the radial direction.
  • the plurality of locking grooves in the mounting portion 2 ' can also here a stable connection at different angular positions of the sections 2', 3 '(with a rotation about the common center axis of the central not shown here Holes of mounting portion 2 'and bottom side 3') can be realized.
  • the number of locking hooks 21 on the valve protection portion 3 'equal to the number of locking grooves 19 in the mounting portion 2' may be less than the number of locking grooves 19. It is also possible within the scope of the invention to provide latching grooves in the valve protection section 3 'and corresponding latching hooks in the attachment section 2'.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
EP18178283.0A 2017-07-27 2018-06-18 Dispositif de protection de soupape pour réservoir de gaz comprimé Active EP3434963B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102017007162.4A DE102017007162A1 (de) 2017-07-27 2017-07-27 Ventilschutzeinrichtung für Druckgasbehälter

Publications (2)

Publication Number Publication Date
EP3434963A1 true EP3434963A1 (fr) 2019-01-30
EP3434963B1 EP3434963B1 (fr) 2022-05-04

Family

ID=62778693

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18178283.0A Active EP3434963B1 (fr) 2017-07-27 2018-06-18 Dispositif de protection de soupape pour réservoir de gaz comprimé

Country Status (4)

Country Link
EP (1) EP3434963B1 (fr)
DE (1) DE102017007162A1 (fr)
ES (1) ES2919952T3 (fr)
PL (1) PL3434963T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022031775A1 (fr) * 2020-08-06 2022-02-10 Amtrol Licensing Inc. Poignée pour un cylindre portatif

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10982814B2 (en) * 2019-09-03 2021-04-20 Amtrol Licensing Inc. Handle assembly for a portable pressurized gas cylinder
USD930783S1 (en) 2019-09-03 2021-09-14 Amtrol Licensing, Inc. Handle

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5709252A (en) * 1995-06-06 1998-01-20 Progas, Inc. Natural gas distribution system
EP2873903B1 (fr) 2013-11-19 2016-01-20 Rolls-Royce plc Plate-forme de turbine à gaz avec cadre rotativ lié avec charnière au plate-forme
EP3193072A1 (fr) * 2016-01-12 2017-07-19 Rovip Protecteur universel pour bouteille de gaz

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3013101B1 (fr) * 2013-11-08 2015-11-06 Rovip Protecteur universel pour bouteille a gaz

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5709252A (en) * 1995-06-06 1998-01-20 Progas, Inc. Natural gas distribution system
EP2873903B1 (fr) 2013-11-19 2016-01-20 Rolls-Royce plc Plate-forme de turbine à gaz avec cadre rotativ lié avec charnière au plate-forme
EP3193072A1 (fr) * 2016-01-12 2017-07-19 Rovip Protecteur universel pour bouteille de gaz

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022031775A1 (fr) * 2020-08-06 2022-02-10 Amtrol Licensing Inc. Poignée pour un cylindre portatif
US20220042653A1 (en) * 2020-08-06 2022-02-10 Amtrol Licensing Inc. Handle for a portable cylinder
GB2606956A (en) * 2020-08-06 2022-11-23 Amtrol Licensing Inc Handle for a portable cylinder
US11585491B2 (en) 2020-08-06 2023-02-21 Amtrol Licensing Inc. Handle for a portable cylinder
GB2606956B (en) * 2020-08-06 2024-02-07 Amtrol Licensing Inc Handle for a portable cylinder

Also Published As

Publication number Publication date
EP3434963B1 (fr) 2022-05-04
PL3434963T3 (pl) 2022-08-08
DE102017007162A1 (de) 2019-01-31
ES2919952T3 (es) 2022-07-29

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