EP0271483B1 - Procédé et dispositif de protection de la paroi interne des bouteilles de gaz contre la corrosion - Google Patents

Procédé et dispositif de protection de la paroi interne des bouteilles de gaz contre la corrosion Download PDF

Info

Publication number
EP0271483B1
EP0271483B1 EP87890285A EP87890285A EP0271483B1 EP 0271483 B1 EP0271483 B1 EP 0271483B1 EP 87890285 A EP87890285 A EP 87890285A EP 87890285 A EP87890285 A EP 87890285A EP 0271483 B1 EP0271483 B1 EP 0271483B1
Authority
EP
European Patent Office
Prior art keywords
plug
gas
drying agent
neck part
bag
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.)
Expired - Lifetime
Application number
EP87890285A
Other languages
German (de)
English (en)
Other versions
EP0271483A2 (fr
EP0271483A3 (en
Inventor
Gerhard König
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.)
Jos Heiser Vorm J Winter's Sohn GmbH
Original Assignee
Jos Heiser Vorm J Winter's Sohn 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 Jos Heiser Vorm J Winter's Sohn GmbH filed Critical Jos Heiser Vorm J Winter's Sohn GmbH
Publication of EP0271483A2 publication Critical patent/EP0271483A2/fr
Publication of EP0271483A3 publication Critical patent/EP0271483A3/de
Application granted granted Critical
Publication of EP0271483B1 publication Critical patent/EP0271483B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D51/00—Closures not otherwise provided for
    • B65D51/24—Closures not otherwise provided for combined or co-operating with auxiliary devices for non-closing purposes
    • B65D51/28—Closures not otherwise provided for combined or co-operating with auxiliary devices for non-closing purposes with auxiliary containers for additional articles or materials
    • B65D51/30—Closures not otherwise provided for combined or co-operating with auxiliary devices for non-closing purposes with auxiliary containers for additional articles or materials for desiccators
    • 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
    • F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
    • F17C1/10—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge with provision for protection against corrosion, e.g. due to gaseous acid
    • 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
    • F17C2201/0109—Shape cylindrical with exteriorly curved end-piece
    • 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
    • F17C2201/0114—Shape cylindrical with interiorly curved end-piece
    • 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
    • F17C2201/056—Small (<1 m3)
    • 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
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0602—Wall structures; Special features thereof
    • F17C2203/0612—Wall structures
    • F17C2203/0614—Single wall
    • F17C2203/0617—Single wall with one layer
    • 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
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0636—Metals
    • F17C2203/0639—Steels
    • 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
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0636—Metals
    • F17C2203/0646—Aluminium
    • 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
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0658—Synthetics
    • F17C2203/066—Plastics
    • 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
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/068—Special properties of materials for vessel walls
    • F17C2203/0692—Special properties of materials for vessel walls transparent
    • 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
    • F17C2205/018—Supporting feet
    • 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
    • F17C2205/0305—Bosses, e.g. boss collars
    • 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
    • F17C2205/0311—Closure means
    • 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
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/21—Shaping processes
    • F17C2209/2172—Polishing
    • 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
    • F17C2221/05—Ultrapure fluid
    • 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
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/04—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by other properties of handled fluid before transfer
    • F17C2223/042—Localisation of the removal point
    • F17C2223/043—Localisation of the removal point in the gas
    • 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
    • F17C2250/04—Indicating or measuring of parameters as input values
    • F17C2250/0404—Parameters indicated or measured
    • F17C2250/0447—Composition; Humidity
    • F17C2250/046—Humidity
    • 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
    • F17C2250/0642—Composition; Humidity
    • F17C2250/0657—Humidity
    • 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
    • F17C2260/053—Reducing corrosion
    • 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
    • F17C2265/01—Purifying the fluid
    • F17C2265/015—Purifying the fluid by separating
    • F17C2265/017—Purifying the fluid by separating different phases of a same fluid
    • 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
    • F17C2270/0518—Semiconductors

Definitions

  • the invention relates to a method for protecting the inner wall of gas bottles, in particular for high-purity gases, against corrosion, while the gas bottles are being transported or stored before they are filled with useful gas.
  • the invention relates to a device for corrosion protection of the inner wall of gas bottles, in particular for high-purity gases, during transport and storage before filling with gas, with a gas bottle.
  • gas bottles that are used to supply high-purity gases are subjected to a special internal treatment in order to achieve a particularly bright surface on the inside.
  • the gas bottles e.g. have a volume of 50 I, for this purpose electropolished or electro-chemically polished.
  • these gas cylinders are exposed to oxidation before being filled with the ultrapure gases, i.e. during transport and during storage, due to the moisture in the air, an oxidized or corroded inner wall in turn being harmful to the ultrapure gases to be filled.
  • the gas bottles are usually filled with the respective useful gas, e.g. High-purity gas, filled, temporarily filled with an inert, dry protective gas under increased pressure (e.g. 2 bar) only for storage or transport to the filling stations.
  • an inert, dry protective gas under increased pressure (e.g. 2 bar) only for storage or transport to the filling stations.
  • this protective gas filling requires a valve as a closing device for the gas bottles. Immediately before filling, the protective gas is released by opening the valve, and the bottles are post-dried or post-treated and then filled with the desired gas.
  • this procedure is obviously extremely complex, both in terms of the device, because of the need to install a valve in the bottle opening, and in terms of the process, since many process steps are necessary to achieve the desired corrosion protection, apart from the costs for the inert protective gas.
  • a mobile drying device for compressed gas in steel cylinder batteries is known from DD-PS 227 858. This device is used where moist gases are filled in steel cylinder batteries, but no condensate should precipitate out of the filled gases.
  • the compressed gas is passed through a separate desiccant container connected to the steel bottle battery, where it is dried, after which it is filled into the pressure container of the steel bottle battery.
  • the object of the invention is therefore to ensure adequate corrosion protection of the inner wall of gas fish before they are filled with the useful gas in a simple manner.
  • the method according to the invention of the type mentioned at the outset is characterized in that a sealing plug is provided, on or in which a drying agent is applied, after which the sealing plug with the drying agent is inserted into the bottle opening with the interposition of a seal and the gas bottle is sealed so tightly.
  • the device according to the invention of the type mentioned at the outset is characterized by a sealing plug with a neck part to be inserted into the bottle opening, inside which a drying agent is attached and which carries a seal on the outside.
  • desiccants e.g. Filled in bags made of very well water-vapor-permeable and sufficiently strong materials, such as crepe paper, papers with water-vapor-permeable heat-sealable coatings, non-woven fabrics and long-fiber papers, for example when packaging machines, electrical equipment, optical devices and the like. used in closed containers.
  • the desiccants are usually attached to the goods to be packaged and shipped, usually outside, and these goods are then placed in a container, such as boxes, etc.
  • the inner wall of the container or the gas bottle itself is to be protected against corrosion with the simplest possible means, long before the useful gas is filled in, immediately after production the gas bottle, during storage and transportation of the same, at which point in time attaching a valve would also be complex and undesirable.
  • the desiccant is attached directly to or in the sealing plug according to the invention, not only the advantage is achieved that the desiccant can be removed from the gas bottle without any problems, namely simply by removing the sealing plug before filling the bottle with the ultrapure gas, in contrast to simply pouring the desiccant into the bottle (which can also lead to undesirable contamination), but also ensures a particularly high effectiveness of the desiccant, since the moist air rises in the gas bottle while dry air sinks downwards, so that the optimal drying effect is ensured by attaching the desiccant to the sealing plug and thus at the upper end of the gas bottles.
  • Common drying agents or adsorbents are, for example, dry clay, silica gel or molecular sieves (i.e. synthetically produced zeolytes with a crystalline structure and uniform pore diameter). As tests have shown, silica gel or "blue gel” has proven to be particularly advantageous, which turns pink when appropriately absorbed by moisture and thus additionally represents an indicator of the absorption of moisture.
  • gas bottles of the type in question here have a bottle opening which tapers conically inwards, and moreover an internal thread is often also provided in the bottle opening. Accordingly, it is advantageous if the neck part of the sealing plug tapers conically at least on the outside and / or if the neck part has an external thread. In this way, the stopper can be attached to the bottle in a conventional manner, the seal on the stopper ensuring a tight seal. (Of course, the sealing plug itself is also tight.) With regard to this seal, it is practically not necessary to design the sealing plug as a precision-made steel plug, and the sealing plug can advantageously simply be made of plastic.
  • An advantageous possibility for attaching the desiccant in the sealing plug is that the desiccant is contained in the chamber enclosed by the neck part of the sealing plug, which is closed on the underside with a wall made of water vapor-permeable material.
  • a metal pin in particular a steel pin, can also be provided, which extends through the upper edge region of the desiccant bag and is releasably clamped and spread apart inside the neck part of the sealing plug on its inner wall.
  • a metal pin in particular a steel pin
  • Such clamping or spreading of the metal pin on the inner wall of the neck part is easily possible due to the design of the sealing plug made of plastic, the metal pin with its ends, which can also be tapered, penetrate slightly into the plastic material. Nonetheless, removal of the metal pin and thus the desiccant bag is possible, the sealing plug or its neck part, which is made of plastic, being able to be slightly elastically deformed by being pressed together, in order to free the metal pin.
  • Another advantageous embodiment is characterized in that a pair of spring arms is provided for attaching a bag containing the desiccant within the neck portion of the sealing plug, which arms extend downward from the underside of the upper end wall of the sealing plug and have mutually complementary engagement parts at their free ends, between which the desiccant bag can be clamped or clamped with its upper edge area.
  • the seal attached to the sealing plug can advantageously be simply formed by an O-ring, in particular made of synthetic rubber.
  • a moisture indicator indicating the active or exhausted state of the drying agent is attached to the inside of the sealing plug.
  • Such indicators are known per se and e.g. commercially available in strip form. They work in particular on a reversible basis, i.e. the indicator areas intended for certain values of the relative humidity change color depending on the relative humidity present, and they change their color with increasing as well as with decreasing relative humidity in their surroundings.
  • FIG. 1 shows an exploded view, partly in section, of a conventional gas bottle and a stopper to be inserted into its bottle opening with a desiccant bag attached to it;
  • Fig. 2 is a view of a streak-shaped moisture indicator;
  • 3, 4 and 5 a preferred embodiment of a sealing plug in an elevation; partly in section; in a top view; and in a side elevation, partly in section;
  • 6 shows such a sealing plug in section, with a desiccant bag fastened in the interior of the neck part of this sealing plug by means of a metal pin;
  • FIG. 7 shows a similar sealing plug in section, with a desiccant bag attached to it.
  • a conventional gas bottle 1 is illustrated as it is used for storing pressurized gases.
  • These gas bottles are made of steel or aluminum, for example, and can have an integrated base 2, for example. Furthermore, they have a bottle neck 3 with a bottle opening 4, which in the present example is conically inward tapers and has an internal thread 5.
  • the bottle body of the gas bottle 1 is essentially elongated in a cylindrical manner.
  • a plug 6 can be inserted into the bottle opening 4, which has a corresponding conical neck part 7 with an external thread 5a. Furthermore, an annular seal 8 is attached to the plug 6.
  • the neck part 7 is approximately ring-shaped, with a wall thickness of, for example, 2 to 3 mm.
  • An elongated, flat desiccant bag 9 is detachably fastened in the interior of the neck part 7 in a manner not shown in FIG. 1.
  • This desiccant bag 9 fits through the bottle opening 4 and is located in the bottle opening 4 plug 6 in the upper part of the gas bottle 1, where any humid air collects inside the bottle, from which the moisture is absorbed or absorbed. In this way, an extraordinarily simple and at the same time effective, reliable corrosion protection for the inner wall of the gas bottle 1 and through the natural convection a drying effect of the gas bottle 1 is achieved.
  • the bottle 1 previously protected against corrosion by the desiccant bag 9 attached to the sealing plug 6 only needs to be opened by removing the sealing plug 6 together with the desiccant bag 9, a possibly directly on the desiccant bag 9 - e.g. by gluing - attached (Fig. 1) or separately from this inside the neck part 7 of the sealing plug (see Fig. 6), known per se moisture indicator or indicator 10 can be used for control purposes to check whether this in Bag 9 contained desiccant is still active or possibly already exhausted.
  • An example of such a desiccant indicator 10 in the form of a strip with moisture-sensitive circular areas 11 applied thereon is schematically illustrated in FIG. 2. As is known per se, these circular areas change their color when the respective values for the relative humidity are reached, e.g. from blue to pink, and vice versa when the moisture drops again.
  • the desiccant in the desiccant bag can, as is known per se, be a silica gel, i.e. a synthetically produced, highly porous and amorphous silica in the form of hard grains. Blaugel, a silica gel impregnated with cobalt-II chloride, or dry clay (bentonite) can also be used.
  • This adsorbent or desiccant is contained in a bag made from a material that is very well permeable to water vapor, sufficiently strong, such as paper, long-fiber paper, non-woven fabric, etc., as is known per se.
  • a particularly preferred embodiment of a sealing plug 6 is illustrated, which consists of plastic and has a conical neck part 7 with an external thread 5a.
  • An upper end wall 12 is provided with a knurled edge 13, and stiffening strips 14 are also provided, which are used at the same time for screwing in and screwing on the sealing plug 6.
  • FIG. 6 illustrates how a desiccant bag 9 is fastened in such a sealing plug 6 within the neck part 7 with the aid of a metal pin 16, in particular made of steel.
  • the metal pin 16 is pierced or inserted through the upper edge region 15 of the desiccant bag 9 and then spread out in the interior of the neck part 7 of the sealing plug 6, with this jamming or spreading of the metal pin 16 making the plastic sealing plug 6 useful, so that when the neck part 7 is compressed in a direction transverse to the metal pin 16, an elastic deformation of the neck part 7 is achieved, which enables the metal pin 16 to be inserted inside the neck part 7 without problems.
  • the metal pin 16 After the neck part 7 has been released, it returns to its original round shape, the metal pin 16, which may have pointed ends, for example, being securely fixed to the inner wall of the neck part, and possibly also slightly into the wall of the neck part 7 with the tips penetrates.
  • FIG. 6 it is further illustrated how the metal pin 16 can be used to fasten a strip-shaped moisture indicator 10, already explained above with reference to FIG. 2, separately from the desiccant bag 9.
  • FIG. 7 finally shows a modified sealing plug 6, in which two resilient arms 17, 18 are provided in the interior of the neck part 7, which are integrally formed on the underside of the upper end wall 12 of the sealing plug 16 and interact with one another at their free ends, have mutually complementary engagement parts 19, 20, for example in the form of a projection 19 and an opening 20.
  • the upper, flat edge region of the desiccant bag 9 can be clamped between these engagement parts 19, 20, as is schematically illustrated in FIG. 7, the two engagement parts 19, 20 interacting like a push button.
  • FIGS. 6 and 7 each illustrate an O-ring pushed on the sealing plug 6 as a seal 8.
  • the sealing plug 6 can have a cylindrical neck part instead of the conical neck part 7 shown.
  • a lip seal or the like which is directly molded onto the sealing plug 6 could also be provided as the seal.
  • the sealing plug 6 could also have a hook-shaped projection for fastening the desiccant bag in the interior of the neck part 7, for example in the case of a manufacture from steel.
  • the desiccant directly in the sealing plug, for example according to FIGS. 3 to 5, in the chamber enclosed by the neck part 7 and this chamber on the underside of the sealing plug 6, on the end face of the neck part 7, with a bottom wall made of water vapor permeable Complete material.
  • the sealing plug can also consist of transparent plastic.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Closures For Containers (AREA)
  • Packages (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)

Claims (10)

1. Procédé pour la protection de la paroi interne de bouteilles à gaz (1), en particulier pour des gaz extrapurs, contre la corrosion pendant le transport et le stockage des bouteilles à gaz et avant de les remplir de gaz industriel, caracterisé en ce qu'un bouchon (6) est prévu pour la bouteille à gaz (1) auquel ou dans lequel est monté un déshydratant (9), le bouchon étant ensuite inséré avec le déshydratant et en joignant une garniture dans l'orifice de la bouteille pour ainsi étancher la bouteille jusqu'au moment du remplissage.
2. Installation pour la protection anticorrosive de la paroi interne de bouteilles à gaz (1), en particulier pour des gaz extra-purs, pendant le transport et le stockage des bouteilles à gaz et avant de les remplir de gaz industriel, et comportant une bouteille à gaz, caracterisée par un bouchon (6) avec un col (7) à insérer dans l'orifice (4), le bouchon portant à l'intérieur un déshydratant (9) et à l'extérieur une garniture (8).
3. Installation suivant la revendication 2, caractérisée en ce que le col (7) a une forme conique qui s'effile au moins vers l'extérieur.
4. Installation suivant les revendications 2 ou 3, caractérisée en ce que le col (7) porte un filetage mâle (5a).
5. Installation suivant une des revendications 2 à 4, caractérisée en ce que le bouchon (6) est fabriqué en matière plastique.
6. Installation suivant une des revendications 2 à 5, caractérisée en ce que le déshydratant est contenu dans la chambre entourée par le col du bouchon, la chambre étant scellée en bas par une paroi en matériel perméable à la vapeur d'eau.
7. Installation suivant la revendication 5, caractérisée en ce qu'elle comporte une pointe métallique (16) passant par la zone du bord supérieure (15) d'un sachet (9) contenant le déshydratant (9) et serrée à bloc ou étayée de facon détachable à la paroi interne de l'intérieur du col (7) du bouchon (6) pour fixer ainsi le sachet du déshydratant.
8. Installation suivant la revendication 5, caractérisée en ce qu'elle comporte, à l'intérieur du col (7) du bouchon (6), une paire de bras à ressort (17, 18) qui s'étendent vers le bas de la face inférieure de la paroi supérieure (12) du bouchon (6) étant pourvus, aux extrémités libres, d'engrenures complémentaires (19, 20), entre lesquelles un sachet (9) contenant le déshydratant est serrable ou serré dans sa zone supérieure, pour fixer ainsi le sachet du déshydratant.
9. Installation suivant une des revendications 2 à 8, caractérisée en ce que la garniture consiste en un joint torique.
10. Installation suivant une des revendications 2 à 9, caractérisée en ce que le bouchon (6) porte pour des buts de contrôle, à 1, intérieur un indicateur d'humidité (10) montrant 1, état actif ou épuisé du déshydratant.
EP87890285A 1986-12-12 1987-12-11 Procédé et dispositif de protection de la paroi interne des bouteilles de gaz contre la corrosion Expired - Lifetime EP0271483B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT3315/86 1986-12-12
AT0331586A AT389581B (de) 1986-12-12 1986-12-12 Verfahren und einrichtung zum schuetzen der innenwandung von gasflaschen gegen korrosion

Publications (3)

Publication Number Publication Date
EP0271483A2 EP0271483A2 (fr) 1988-06-15
EP0271483A3 EP0271483A3 (en) 1989-03-15
EP0271483B1 true EP0271483B1 (fr) 1990-08-08

Family

ID=3548657

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87890285A Expired - Lifetime EP0271483B1 (fr) 1986-12-12 1987-12-11 Procédé et dispositif de protection de la paroi interne des bouteilles de gaz contre la corrosion

Country Status (4)

Country Link
EP (1) EP0271483B1 (fr)
AT (2) AT389581B (fr)
DE (1) DE3764249D1 (fr)
ES (1) ES2017765B3 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004039387A1 (de) * 2004-08-13 2006-02-23 Klebchemie M.G. Becker Gmbh & Co. Kg Deckel für einen Behälter zur Lagerung und/oder Bereitstellung und/oder zum Transport von feuchtigkeitsempfindlichen Materialien
EP3366975B1 (fr) * 2017-02-23 2021-12-29 Nproxx B.V. Calotte polaire comprenant un élément de raccord par pression pour un récipient sous pression
CN113460483B (zh) * 2021-05-26 2023-07-04 滕州市大晟包装制品股份有限公司 一种低结块率的磁气式包装盒

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE525100A (fr) *
DE380656C (de) * 1919-11-21 1923-09-08 Philips Nv Verfahren zur Bindung schaedlicher Gasreste in elektrischen Gluehlampen durch chemische Verbindungen, die durch Erhitzung in Trockenmittel umgewandelt werden
US1541127A (en) * 1923-05-14 1925-06-09 Oscar B Elmer Air drier for candy jars
US2532066A (en) * 1946-08-10 1950-11-28 Int Harvester Co Containing unit
FR1217571A (fr) * 1959-02-27 1960-05-04 Emballage étanche
DE2120828A1 (de) * 1971-04-28 1972-11-09 Teldix Gmbh, 6900 Heidelberg Trockenmittelbehälter in Stopfenform für feuchtigkeitsdichte Verpackungen und Gehäuse
DE2323013A1 (de) * 1973-05-08 1974-11-28 Draegerwerk Ag Gasflaschenventil mit wasserschutzrohr fuer druckgasflaschen
FR2523082B1 (fr) * 1982-03-10 1987-09-11 Union Pharma Scient Appl Bouchon pour obturation etanche de recipients, procede de fabrication et machine de mise en oeuvre de ce procede
DD227858A3 (de) * 1982-04-22 1985-09-25 Leipzig Tech Gase Veb Mobile trocknungsvorrichtung fuer druckgas in stahlflaschenbatterien
US4545492A (en) * 1982-09-30 1985-10-08 Firestone Raymond A Device for maintaining dry conditions in vessels
DE3339888A1 (de) * 1983-11-04 1985-05-15 Friedrich Sanner GmbH & Co KG Spritzgußwerk, 6140 Bensheim Trockenstoff-einsatz fuer flachpackungen

Also Published As

Publication number Publication date
AT389581B (de) 1989-12-27
EP0271483A2 (fr) 1988-06-15
ES2017765B3 (es) 1991-03-01
ATE55471T1 (de) 1990-08-15
ATA331586A (de) 1989-05-15
DE3764249D1 (de) 1990-09-13
EP0271483A3 (en) 1989-03-15

Similar Documents

Publication Publication Date Title
DE4327668A1 (de) Aerosoldosen-Abfallbeseitigungsvorrichtung
DE7826217U1 (de) Behaelterverschluss
DE69421510T2 (de) Ventilanordnung
DE3111190A1 (de) Elektrochemischer messaufnehmer mit auswechselbarer membranhalterung
CH653574A5 (en) Device for spraying flowable and liquid materials
WO2008122529A1 (fr) Unité récipient destinée à la conservation et à la protection de substances de laboratoire
EP0271483B1 (fr) Procédé et dispositif de protection de la paroi interne des bouteilles de gaz contre la corrosion
WO1983003239A1 (fr) Capuchon apte a etre place sur l&#39;ouverture centrale de sortie d&#39;un recipient pour liquide
DE2936614A1 (de) Filter zum reinigen der luft fuer nach aussen abgeschlossene raeume, insbesondere in fahrzeugen
DE3815641A1 (de) Verschliessbarer behaelter fuer bespielte tennisbaelle
DE102005034676B3 (de) Verschlusskappe zum wiederholten Verschließen von Behältnissen mit austrocknungsgefährdeten, oxidationsgefährdeten oder verderblichen Inhaltsstoffen
DE3032915C2 (de) Verschluß von Tragebehältern für Atemschutzgeräte
DE2020757A1 (de) Gasreinigungsfilter mit auswechselbarer Filterpatrone
WO1981001400A1 (fr) Dispositif pour contenir des produits dans au moins deux recipients separes et destines a former un melange ou un compose
DE2406558C3 (de) Stopfen mit Trocknungseinlage
DE69702915T2 (de) Vorratsbehälter
DE8614925U1 (de) Nicht nachladbare Flasche für Druckgas
DE19645608B4 (de) Verfahren, Reinigungsmaterial und Reinigungsvorrichtung zum Reinigen von Gas
DE2950825A1 (de) Von hand freigebbares rueckschlagventil fuer schlauchboote o.dgl.
DE3630047C2 (fr)
DE7835933U1 (de) Vorrichtung zur Beluefting von Behaeltern mit entfeuchteter Luft
EP0019236A2 (fr) Applicateur de fluide, en particulier de liquide de nettoyage et/ou de liquide d&#39;entretien, sur une surface
DE570724C (de) Farbtube
DE430032C (de) Verschlussvorrichtung fuer Flaschen zur Aufnahme komprimierter oder verfluessigter Gase
DE3001716C2 (de) Atemfilter mit Verpackung

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT DE ES FR GB IT

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT DE ES FR GB IT

17P Request for examination filed

Effective date: 19890223

17Q First examination report despatched

Effective date: 19900118

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT DE ES FR GB IT

REF Corresponds to:

Ref document number: 55471

Country of ref document: AT

Date of ref document: 19900815

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3764249

Country of ref document: DE

Date of ref document: 19900913

ITF It: translation for a ep patent filed

Owner name: STUDIO TORTA SOCIETA' SEMPLICE

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
ITTA It: last paid annual fee
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20041203

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20041217

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20041220

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20041231

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20050128

Year of fee payment: 18

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20051211

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20051211

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20051211

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20051212

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060701

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20051211

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060831

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20060831

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20051212