[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

EP0226118A2 - Container for agressive fluids - Google Patents

Container for agressive fluids Download PDF

Info

Publication number
EP0226118A2
EP0226118A2 EP86116761A EP86116761A EP0226118A2 EP 0226118 A2 EP0226118 A2 EP 0226118A2 EP 86116761 A EP86116761 A EP 86116761A EP 86116761 A EP86116761 A EP 86116761A EP 0226118 A2 EP0226118 A2 EP 0226118A2
Authority
EP
European Patent Office
Prior art keywords
container
valve block
valve
bores
container according
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
EP86116761A
Other languages
German (de)
French (fr)
Other versions
EP0226118B1 (en
EP0226118A3 (en
Inventor
Werner Gunkel
Frank Joseph
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.)
Merck Patent GmbH
Original Assignee
Merck Patent 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 Merck Patent GmbH filed Critical Merck Patent GmbH
Publication of EP0226118A2 publication Critical patent/EP0226118A2/en
Publication of EP0226118A3 publication Critical patent/EP0226118A3/en
Application granted granted Critical
Publication of EP0226118B1 publication Critical patent/EP0226118B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • 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
    • 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
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/70—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for
    • B65D85/84—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for for corrosive chemicals
    • 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
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0104—Shape cylindrical
    • F17C2201/0119—Shape cylindrical with flat 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
    • 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
    • F17C2203/0604—Liners
    • 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
    • F17C2203/0619—Single wall with two layers
    • 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
    • F17C2203/0639—Steels
    • F17C2203/0643—Stainless 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
    • F17C2203/0658—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
    • 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
    • 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
    • F17C2209/22—Assembling processes
    • F17C2209/228—Assembling processes by screws, bolts or rivets
    • 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
    • F17C2221/03—Mixtures
    • F17C2221/037—Containing pollutant, e.g. H2S, Cl
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/6851—With casing, support, protector or static constructional installations
    • Y10T137/7036—Jacketed

Definitions

  • the invention relates to a container for aggressive liquids, in particular liquids aggressive to stainless steel, such as silicon tetrachloride, with a container opening closed by a container lid, which carries a valve head consisting at least partially of plastic.
  • Stainless steel transport and removal containers are used for many aggressive liquids. These containers have the advantage that they are considerably less sensitive to damage such as can occur during transport than containers made of glass or plastic.
  • some aggressive liquids such as silicon tetrachloride, also attack stainless steel and remove impurities from the stainless steel.
  • plastics are known which are not attacked by silicon tetrachloride and similar substances, namely fluorinated hydrocarbons.
  • the production of container parts, in particular valve heads, from these materials presents difficulties because the plastics belonging to the group of fluorinated hydrocarbons flow cold, ie these plastics change their shape permanently under prolonged mechanical stress. A gas and liquid-tight seal is made with components made of these plastics therefore not been possible until now.
  • the object of the invention is to provide a container of the type mentioned at the outset which is suitable for the transport and removal of aggressive liquids, in particular silicon tetrachloride, which ensures a high level of transport safety and in which even in the region of the valve head there is no contact of the liquid to be absorbed with stainless steel or other materials takes place, which are attacked by the liquid.
  • aggressive liquids in particular silicon tetrachloride
  • the complete lining of the container and the container lid with a plastic that is not attacked by the aggressive liquid excludes the contact between the aggressive liquid and the container material, which can preferably be stainless steel, so that the favorable strength properties at a relatively low level Weight is maintained.
  • valve block Since all the bores and lines to be made in the area of the valve head run inside the valve block, which is made entirely of plastic, which is not attacked by the aggressive liquid, there is also harmful contact in the entire valve area Components made of other material excluded. Since the valve block made of fluorinated hydrocarbon itself does not have sufficient strength over a long period of time because the plastic used tends to flow, the valve block obtains its strength necessary for the sealing function through the steel jacket enveloping the valve block, which preferably also consists of stainless steel. The tendency of the valve block material to flow is prevented by the fact that the valve block is enclosed on all sides and thus cannot change its shape even under prolonged mechanical stress, even if the valve block is pressed against the container lid with high force in order to achieve a sufficient sealing effect.
  • valve block bores each receiving a valve insert have one each Have valve seat against which a valve closing body of the valve insert rests. This eliminates the need to provide a separate valve seat that would have to be held and sealed in the valve block.
  • the valve block has a cylindrical shape and is inserted in a suitable manner into the cylindrical interior of the steel jacket, an end face of the valve block sealingly abutting the top of the container lid.
  • This form of Valve block is not only advantageous in terms of production technology; it also leads to the valve block undergoing almost no change in shape due to the pressure force applied to the container lid when pressed. A slight change in shape occurring in the area of the end face lying against the container lid has no influence on the function of the valve inserts and in particular their sealing function, because the valve inserts are arranged at a distance from this end face.
  • a particularly preferred material according to the invention for the lining of the container and the container lid and for the valve block is the polyvinylidene fluoride which is completely inert to silicon tetrachloride.
  • the container 1 shown only partially in FIG. 1 has a container opening 3 provided with a flange 2, the diameter of which is chosen to be large, for example 3oo mm that a complete lining 4 made of fluorinated hydrocarbon can be applied to the inner wall of the stainless steel container 1.
  • the container lid 6 also has a complete lining 9 made of fluorinated hydrocarbon on its inner wall.
  • a valve head 10 is placed on the container lid 6 and has an essentially cylindrical valve block 11 made of fluorinated hydrocarbon in its interior.
  • the valve block 11 is surrounded by a stainless steel jacket on its circumference and on its top, in which it is inserted appropriately.
  • the lower end face 13 of the valve block 11 is pressed onto the upper side of the container lid 6 in a sealing manner.
  • a flange 14 is welded to the steel jacket 12, which is located at a distance from the top of the container cover 6 and is pulled against the container cover 6 with flange screws 15.
  • valve block 11 two vertical valve block bores 16 are provided which are aligned with two openings 17 in the container lid 6.
  • An immersion tube 18 is screwed into a valve block bore 16 from below and immerses in the liquid received in the container 1.
  • valve inserts 19 protrude from above into the two vertical valve block bores arranged at a distance from one another.
  • a movable valve closing body 20 of each valve insert 19 lies sealingly against a valve seat 21 formed by a conical shoulder in each vertical valve block bore and, in the closed state, closes the section below it Valve block bore 16 tight.
  • Each of the n valve inserts 19 is pressed against the valve block 11 by a clamping sleeve 22 screwed from above against the cover of the steel jacket 12 and held in a sealing manner.
  • a connecting thread 24 in the bore 23 is cut both in the steel jacket 12 and in the valve block 11, so that a screwed-in (not shown) connecting part to the Bore 23 can be sealingly connected.
  • a flushing valve insert 26 is received in a horizontal valve block bore 25 in the same way as the valve inserts 19. Flushing bores 27 connect the horizontal valve block bore 25 to the two vertical valve block bores 16 (FIG. 2).
  • the supply and discharge bores 23 are connected to one another via the flushing bores 27 and the horizontal valve block bore 25 and can be flushed with a protective gas.
  • All valve inserts 19 and 26 are protected against the aggressive liquid by a bellows 29 or 3o, which is arranged between the valve closing body 20 or 28 and the valve insert 19 or 26 and consists, for example, of polytetrafluoroethylene.
  • valve block 11 All parts which can come into contact with the aggressive liquid to be absorbed, for example silicon tetrachloride, consist of plastics or are lined with those which are insensitive to these liquids, namely fluorinated hydrocarbons, such as polyvinylidene fluoride.
  • fluorinated hydrocarbons such as polyvinylidene fluoride.
  • the plastic which tends to flow cold, can make no or only extremely slight changes in shape even under the action of the pressing force directed against the container lid 6, because it is completely enclosed between the steel jacket 12 and the container lid 6.
  • the valve inserts 19 are not fastened in the valve block 11, but on the steel jacket 12 and are pressed against the valve block 11 from above.
  • Polytrifluorochloroethylene can also advantageously be used as the plastic for the container lining and / or the valve block 11.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Chemical & Material Sciences (AREA)
  • Lift Valve (AREA)
  • Closures For Containers (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
  • Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
  • Valve Housings (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

Ein zum Transport und zur Abgabe von aggressiven Flüssigkeiten, wie Siliziumtetrachlorid, bestimmter Behälter (1) ist mit einem Behälterdeckel (6) verschlossen, der einen Ventilkopf (1O) trägt. Die Innenwände des Behälters (1) und des Behälterdeckels sind mit fluoriertem Kohlenwasserstoff ausgekleidet. Der Ventilkopf (1O) weist einen Ventilblock (11) auf, der in Ventilblockbohrungen (16) Ventileinsätze (19) aufnimmt und von einem Stahlmantel (12) eingeschlossen ist, der mit dem Behälterdeckel (6) verschraubt ist. Alle mit der aggressiven Flüssigkeit in Berührung kommenden Teile bestehen aus fluoriertem Kohlenwasserstoff, so daß die Berührung der aggressiven Flüssigkeit mit Metall vermieden wird.A container (1) intended for the transport and delivery of aggressive liquids, such as silicon tetrachloride, is closed with a container cover (6) which carries a valve head (10). The inner walls of the container (1) and the container lid are lined with fluorinated hydrocarbon. The valve head (10) has a valve block (11) which receives valve inserts (19) in valve block bores (16) and is enclosed by a steel jacket (12) which is screwed to the container lid (6). All parts in contact with the aggressive liquid are made of fluorinated hydrocarbon, so that contact of the aggressive liquid with metal is avoided.

Description

Die Erfindung betrifft einen Behälter für aggressive Flüssigkeiten, insbesondere gegenüber Edelstahl aggressive Flüssigkeiten, wie Siliziumtetrachlorid, mit einer durch einen Behälterdeckel verschlossenen Behälteröffnung, der einenmindestens teilweise aus Kunststoff bestehenden Ventilkopf trägt.The invention relates to a container for aggressive liquids, in particular liquids aggressive to stainless steel, such as silicon tetrachloride, with a container opening closed by a container lid, which carries a valve head consisting at least partially of plastic.

Transport- und Entnahmebehälter aus Edelstahl werden für viele aggressive Flüssigkeiten verwendet. Diese Behälter haben den Vorteil, daß sie gegenüber Beschädigungen, wie sie beim Transport auftreten können, wesentlich unempfindlicher sind als aus Glas oder Kunststoff bestehende Behälter. Einige aggressive Flüssigkeiten, wie Siliziumtetrachlorid, greifen jedoch auch Edelstahl an und lösen Verunreinigungen aus dem Edelstahl. Es sind zwar Kunststoffe bekannt, die von Siliziumtetrachlorid und ähnlichen Stoffen nicht angegriffen werden, nämlich fluorierte Kohlenwasserstoffe. Die Herstellung von Behälterteilen, insbesondere Ventilköpfen aus diesen Materialien bereitet jedoch Schwierigkeiten, weil die zur Gruppe der fluorierten Kohlenwasserstoffe gehörenden Kunststoffe kalt fließen, d.h. unter längerdauernder mechanischer Belastung verändern diese Kunststoffe ihre Form bleibend. Eine gas- und flüssigkeitsdichte Abdichtung ist mit Bauteilen aus diesen Kunststoffen deshalb bisher nicht möglich gewesen.Stainless steel transport and removal containers are used for many aggressive liquids. These containers have the advantage that they are considerably less sensitive to damage such as can occur during transport than containers made of glass or plastic. However, some aggressive liquids, such as silicon tetrachloride, also attack stainless steel and remove impurities from the stainless steel. It is true that plastics are known which are not attacked by silicon tetrachloride and similar substances, namely fluorinated hydrocarbons. However, the production of container parts, in particular valve heads, from these materials presents difficulties because the plastics belonging to the group of fluorinated hydrocarbons flow cold, ie these plastics change their shape permanently under prolonged mechanical stress. A gas and liquid-tight seal is made with components made of these plastics therefore not been possible until now.

Aufgabe der Erfindung ist es, einen zum Transport und zur Entnahme von aggressiven Flüssigkeiten, insbesondere Siliziumtetrachlorid geeigneten Behälter der eingangs genannten Gattung zu schaffen, der eine hohe Transportsicherheit gewährleistet und bei dem auch im Bereich des Ventilkopfes keine Berührung der aufzunehmenden Flüssigkeit mit Edelstahl oder anderen Materialien erfolgt, die von der Flüssigkeit angegriffen werden.The object of the invention is to provide a container of the type mentioned at the outset which is suitable for the transport and removal of aggressive liquids, in particular silicon tetrachloride, which ensures a high level of transport safety and in which even in the region of the valve head there is no contact of the liquid to be absorbed with stainless steel or other materials takes place, which are attacked by the liquid.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Innenwände des Behälters und des Behälterdeckels eine vollständige Auskleidung aus fluoriertem Kohlenwasserstoff aufweisen und daß im Ventilkopf ein aus fluoriertem Kohlenwasserstoff bestehender Ventilblock in einem mit dem Behälterdeckel lösbar verbundenen Stahlmantel eingesetzt ist und in Ventilblockbohrungen mindestens teilweise aus fluoriertem Kohlenwasserstoff bestehende Ventileinsätze aufnimmt.This object is achieved in that the inner walls of the container and the container cover have a complete lining of fluorinated hydrocarbon and that in the valve head a valve block consisting of fluorinated hydrocarbon is inserted in a steel jacket detachably connected to the container cover and in valve block bores at least partially of fluorinated hydrocarbon existing valve inserts.

Die vollständige Auskleidung des Behälters und des Behälterdeckels mit einem Kunststoff, der von der aggressiven Flüssigkeit nicht angegriffen wird, schließt in diesem Bereich die Berührung zwischen der aggressiven Flüssigkeit und dem Behälterwerkstoff aus, der vorzugsweise Edelstahl sein kann, so daß die günstigen Festigkeitseigenschaften bei verhältnismäßig geringem Gewicht gewahrt bleiben.The complete lining of the container and the container lid with a plastic that is not attacked by the aggressive liquid excludes the contact between the aggressive liquid and the container material, which can preferably be stainless steel, so that the favorable strength properties at a relatively low level Weight is maintained.

Da alle im Bereich des Ventilkopfes auszuführenden Bohrungen und Leitungen innerhalb des Ventilblockes verlaufen, der vollständig aus dem Kunststoff besteht, der von der aggressiven Flüssigkeit nicht angegriffen wird, ist auch im gesamten Ventilbereich eine schädliche Berührung mit Bauteilen aus anderem Material ausgeschlossen. Da der aus fluoriertem Kohlenwasserstoff bestehende Ventilblock selbst keine ausreichende Festigkeit über längere Zeit aufweist, weil der verwendete Kunststoff zum Fließen neigt, erhält der Ventilblock seine für die Dichtfunktion notwendige Festigkeit durch den den Ventilblock umhüllenden Stahlmantel,der vorzugsweise ebenfalls aus Edelstahl besteht. Die Fließneigung des Ventilblockmaterials wird dadurch unterbunden, daß der Ventilblock allseitig eingeschlossen ist und somit seine Form auch unter längerdauernder mechanischer Beanspruchung nicht ändern kann, auch wenn der Ventilblock zur Erzielung einer ausreichenden Dichtwirkung mit hoher Kraft gegen den Behälterdeckel gepresst wird.Since all the bores and lines to be made in the area of the valve head run inside the valve block, which is made entirely of plastic, which is not attacked by the aggressive liquid, there is also harmful contact in the entire valve area Components made of other material excluded. Since the valve block made of fluorinated hydrocarbon itself does not have sufficient strength over a long period of time because the plastic used tends to flow, the valve block obtains its strength necessary for the sealing function through the steel jacket enveloping the valve block, which preferably also consists of stainless steel. The tendency of the valve block material to flow is prevented by the fact that the valve block is enclosed on all sides and thus cannot change its shape even under prolonged mechanical stress, even if the valve block is pressed against the container lid with high force in order to achieve a sufficient sealing effect.

Dies geschieht vorzugsweise dadurch, daß der den Ventilblock enthaltende Stahlmantel einen im Abstand zum Behälterdeckel angeordneten Flansch aufweist, der mittels Flanschschrauben mit dem Behälterdeckel verbunden ist.& <PAR>In weiterer Ausgestaltung des Erfindungsgedankens ist vorgesehen, daß die jeweils einen Ventileinsatz aufnehmenden Ventilblockbohrungen jeweils einen Ventilsitz aufweisen, an dem ein Ventilschließkörper des Ventileinsatzes anliegt. Damit entfällt die Notwendigkeit, einen gesonderen Ventilsitz vorzusehen, der im Ventilblock gehalten und abgedichtet werden müsste.This is preferably done in that the steel jacket containing the valve block has a flange which is arranged at a distance from the container cover and is connected to the container cover by means of flange screws. & <PAR> In a further embodiment of the inventive concept it is provided that the valve block bores each receiving a valve insert have one each Have valve seat against which a valve closing body of the valve insert rests. This eliminates the need to provide a separate valve seat that would have to be held and sealed in the valve block.

Gemäß einer bevorzugten Ausführungsform der Erfindung hat der Ventilblock Zylinderform und ist in den zylindrischen Innenraum des Stahlmantels passend eingesetzt, wobei eine Stirnfläche des Ventilblockes an der Oberseite des Behälterdeckels dichtend anliegt. Diese Form des Ventilblockes ist nicht nur fertigungstechnisch vorteilhaft; sie führt auch dazu, daß der Ventilblock durch die beim Anpressen an den Behälterdeckel aufgebrachte Druckkraft fast keine Formänderung erfährt. Eine im Bereich der am Behälterdeckel anliegenden Stirnfläche auftretende geringfügige Formänderung hat auf die Funktion der Ventileinsätze und insbesondere deren Dichtungsfunktion keinen Einfluß, weil die Ventileinsätze im Abstand zu dieser Stirnfläche angeordnet sind.According to a preferred embodiment of the invention, the valve block has a cylindrical shape and is inserted in a suitable manner into the cylindrical interior of the steel jacket, an end face of the valve block sealingly abutting the top of the container lid. This form of Valve block is not only advantageous in terms of production technology; it also leads to the valve block undergoing almost no change in shape due to the pressure force applied to the container lid when pressed. A slight change in shape occurring in the area of the end face lying against the container lid has no influence on the function of the valve inserts and in particular their sealing function, because the valve inserts are arranged at a distance from this end face.

Ein erfindungsgemäß besonders bevorzugtes Material für die Auskleidung des Behälters und des Behälterdeckels sowie für den Ventilblock ist das gegenüber Siliziumtetrachlorid völlig inerte Polyvinylidenfluorid.A particularly preferred material according to the invention for the lining of the container and the container lid and for the valve block is the polyvinylidene fluoride which is completely inert to silicon tetrachloride.

Weitere vorteilhafte Ausgestaltungen des Erfindungsgedankens sind Gegenstand weiterer Unteransprüche.Further advantageous embodiments of the inventive concept are the subject of further dependent claims.

Die Erfindung wird nachfolgend an einem Ausführungsbeispiel näher erläutert, das in der Zeichnung dargestellt ist.The invention is explained in more detail below using an exemplary embodiment which is illustrated in the drawing.

Es zeigt:

  • Fig. 1 einen Transport- und Entnahmebehälter für Siliziumtetrachlorid mit aufgesetztem Ventilkopf im senkrechten Schnitt und
  • Fig. 2 einen Schnitt längs der Linie II-II in Fig. 1 durch den Ventilkopf, wobei die senkrechten Ventileinsätze der Einfachheit halber weggelassen sind.
It shows:
  • Fig. 1 shows a transport and removal container for silicon tetrachloride with an attached valve head in a vertical section and
  • Fig. 2 shows a section along the line II-II in Fig. 1 through the valve head, wherein the vertical valve inserts are omitted for the sake of simplicity.

Der in Fig. 1 nur teilweise dargestellte Behälter 1 weist einen mit einem Flansch 2 versehene Behälteröffnung 3 auf, deren Durchmesser so groß gewählt ist, beispielsweise 3oo mm, daß an der Innenwand des aus Edelstahl bestehenden Behälters 1 eine vollständige Auskleidung 4 aus fluoriertem Kohlenwasserstoff aufgebracht werden kann.The container 1 shown only partially in FIG. 1 has a container opening 3 provided with a flange 2, the diameter of which is chosen to be large, for example 3oo mm that a complete lining 4 made of fluorinated hydrocarbon can be applied to the inner wall of the stainless steel container 1.

Ein ebenfalls mit einem Flansch 5 versehener Behälterdeckel 6 ist über eine Flanschverschraubung 7 unter Zwischenlage einer Dichtung 8 aus fluoriertem Kohlenwasserstoff mit dem Behälter 1 dicht verbunden. Auch der Behälterdeckel 6 weist an seiner Innenwand eine vollständige Auskleidung 9 aus fluoriertem Kohlenwasserstoff auf.A container lid 6, also provided with a flange 5, is tightly connected to the container 1 via a flange screw connection 7 with the interposition of a seal 8 made of fluorinated hydrocarbon. The container lid 6 also has a complete lining 9 made of fluorinated hydrocarbon on its inner wall.

Auf den Behälterdeckel 6 ist ein Ventilkopf 1O aufgesetzt, der in seinem Inneren einen im wesentlichen zylindrischen Ventilblock 11 aus fluoriertem Kohlenwasserstoff aufweist. Der Ventilblock 11 ist von einem aus Edelstahl bestehenden Stahlmantel an seinem Umfang und an seiner Oberseite umschlossen, in den er passend eingesetzt ist.A valve head 10 is placed on the container lid 6 and has an essentially cylindrical valve block 11 made of fluorinated hydrocarbon in its interior. The valve block 11 is surrounded by a stainless steel jacket on its circumference and on its top, in which it is inserted appropriately.

Die untere Stirnfläche 13 des Ventilblockes 11 wird dichtend auf die Oberseite des Behälterdeckels 6 gepresst. Hierzu ist an dem Stahlmantel 12 ein Flansch 14 angeschweisst, der sich im Abstand zur Oberseite des Behälterdeckels 6 befindet und mit Flanschschrauben 15 gegen den Behälterdeckel 6 gezogen wird.The lower end face 13 of the valve block 11 is pressed onto the upper side of the container lid 6 in a sealing manner. For this purpose, a flange 14 is welded to the steel jacket 12, which is located at a distance from the top of the container cover 6 and is pulled against the container cover 6 with flange screws 15.

Im Ventilblock 11 sind zwei senkrechte Ventilblockbohrungen 16 vorgesehen, die mit zwei Öffnungen 17 im Behälterdeckel 6 fluchten. In die eine Ventilblockbohrung 16 ist von unten ein Tauchrohr 18 eingeschraubt, das in die im Behälter 1 aufgenommene Flüssigkeit taucht.In the valve block 11, two vertical valve block bores 16 are provided which are aligned with two openings 17 in the container lid 6. An immersion tube 18 is screwed into a valve block bore 16 from below and immerses in the liquid received in the container 1.

Von oben ragen in die beiden im Abstand zueinander angeordneten senkrechten Ventilblockbohrungen 16 Ventileinsätze 19. Ein bewegbarer Ventilschließkörper 2o jedes Ventileinsatzes 19 liegt an einem durch einen kegeligen Absatz in jeder senkrechten Ventilblockbohrung gebildeten Ventilsitz 21 dichtend an und schließt im geschlossenen Zustand den jeweils darunter befindlichen Abschnitt der Ventilblockbohrung 16 dicht ab.16 valve inserts 19 protrude from above into the two vertical valve block bores arranged at a distance from one another. A movable valve closing body 20 of each valve insert 19 lies sealingly against a valve seat 21 formed by a conical shoulder in each vertical valve block bore and, in the closed state, closes the section below it Valve block bore 16 tight.

Jeder der be n Ventileinsätze 19 wird durch eine von oben gegen den Deckel des Stahlmantels 12 geschraubte Spannbüchse 22 gegen den Ventilblock 11 gedrückt und dichtend gehalten. Oberhalb der beiden Ventilsitze 21 münden horizontale Zuleitungs- bzw. Ableitungsbohrungen 23 in die Ventilblockbohrung 16. Ein Anschlußgewinde 24 in der Bohrung 23 ist sowohl in den Stahlmantel 12 als auch in den Ventilblock 11 geschnitten, so daß ein eingeschraubtes (nicht dargestelltes) Anschlußteil an die Bohrung 23 dichtend angeschlossen werden kann.Each of the n valve inserts 19 is pressed against the valve block 11 by a clamping sleeve 22 screwed from above against the cover of the steel jacket 12 and held in a sealing manner. Above the two valve seats 21, horizontal supply or discharge bores 23 open into the valve block bore 16. A connecting thread 24 in the bore 23 is cut both in the steel jacket 12 and in the valve block 11, so that a screwed-in (not shown) connecting part to the Bore 23 can be sealingly connected.

In einer horizontalen Ventilblockbohrung 25 ist ein Spülventileinsatz 26 in gleicher Weise wie die Ventileinsätze 19 aufgenommen. Spülbohrungen 27 verbinden die horizontale Ventilblockbohrung 25 mit den beiden senkrechten Ventilblockbohrungen 16 (Fig. 2). Wenn der Ventileinsatz 26 geöffnet wird, sind die Zuleitungs- und Ableitungsbohrungen 23 miteinander über die Spülbohrungen 27 und die horizontale Ventilblockbohrung 25 verbunden und können mit einem Schutzgas gespült werden. Alle Ventileinsätze 19 und 26 sind durch einen zwischen dem Ventilschließkörper 2O bzw. 28 und dem Ventileinsatz 19 bzw. 26 angeordneten Faltenbalg 29 bzw. 3o, der beispielsweise aus Polytetrafluorethylen besteht, gegen die aggressive Flüssigkeit geschützt.A flushing valve insert 26 is received in a horizontal valve block bore 25 in the same way as the valve inserts 19. Flushing bores 27 connect the horizontal valve block bore 25 to the two vertical valve block bores 16 (FIG. 2). When the valve insert 26 is opened, the supply and discharge bores 23 are connected to one another via the flushing bores 27 and the horizontal valve block bore 25 and can be flushed with a protective gas. All valve inserts 19 and 26 are protected against the aggressive liquid by a bellows 29 or 3o, which is arranged between the valve closing body 20 or 28 and the valve insert 19 or 26 and consists, for example, of polytetrafluoroethylene.

Alle Teile, die mit der aufzunehmenden aggressiven Flüssigkeit, beispielsweise Siliziumtetrachlorid in Berührung kommen können, bestehen aus Kunststoffen oder sind mit solchen ausgekleidet, die gegenüber diesen Flüssigkeiten unempfindlich sind, nämlich fluorierte Kohlenwasserstoffe, wie Polyvinylidenfluorid. Dies gilt insbesondere auch im Bereich des Ventilkopfes 1O, weil dort der gesamte Ventilblock 11 aus diesem Kunststoff besteht. Der zum Kaltfließen neigende Kunststoff kann jedoch auch unter der Wirkung der gegen den Behälterdeckel 6 gerichteten Anpresskraft keine oder nur äußerst geringfügige Formänderungen ausführen, weil er vollständig zwischen dem Stahlmantel 12 und dem Behälterdeckel 6 eingeschlossen ist. Die Ventileinsätze 19 sind nicht im Ventilblock 11 befestigt, sondern am Stahlmantel 12 und werden von oben gegen den Ventilblock 11 gedrückt.All parts which can come into contact with the aggressive liquid to be absorbed, for example silicon tetrachloride, consist of plastics or are lined with those which are insensitive to these liquids, namely fluorinated hydrocarbons, such as polyvinylidene fluoride. This is particularly true in the area of the valve head 10, because the entire valve block 11 is made of this plastic. However, the plastic, which tends to flow cold, can make no or only extremely slight changes in shape even under the action of the pressing force directed against the container lid 6, because it is completely enclosed between the steel jacket 12 and the container lid 6. The valve inserts 19 are not fastened in the valve block 11, but on the steel jacket 12 and are pressed against the valve block 11 from above.

Als Kunststoff für die Behälterauskleidung und/oder den Ventilblock 11 kann vorteilhaft auch Polytrifluorchlorethylen verwendet werden. Polytrifluorochloroethylene can also advantageously be used as the plastic for the container lining and / or the valve block 11.

Claims (10)

1. Behälter für aggressive Flüssigkeiten, insbesondere gegenüber Edelstahl aggressive Flüssigkeiten, wie Siliziumtetrachlorid, mit einer durch einen Behälterdeckel verschlossenen Behälteröffnung, der einen mindestens teilweise aus Kunststoff bestehenden Ventilkopf trägt, dadurch gekennzeichnet, daß die Innenwände des Behälters (1) und des Behälterdeckels (6) eine vollständige Auskleidung (4, 9) aus fluoriertem Kohlenwasserstoff aufweisen und daß im Ventilkopf (1O) ein aus fluoriertem Kohlenwasserstoff bestehender Ventilblock (11) in einem mit dem Behälterdeckel (6) lösbar verbundenen Stahlmantel (12) eingesetzt ist und in Ventilblockbohrungen (16, 25) mindestens teilweise aus fluoriertem Kohlenwasserstoff bestehende Ventileinsätze (19, 26) aufnimmt.1. Container for aggressive liquids, in particular liquids aggressive to stainless steel, such as silicon tetrachloride, with a container opening which is closed by a container lid and which carries an at least partially plastic valve head, characterized in that the inner walls of the container (1) and the container lid (6 ) have a complete lining (4, 9) made of fluorinated hydrocarbon and that in the valve head (10) a valve block (11) consisting of fluorinated hydrocarbon is inserted in a steel jacket (12) detachably connected to the container lid (6) and in valve block bores (16 , 25) receives valve inserts (19, 26) consisting at least partially of fluorinated hydrocarbon. 2. Behälter nach Anspruch 1, dadurch gekennzeichnet, daß der den Ventilblock (11) enthaltende Stahlmantel (12) einen im Abstand zum Behälterdeckel (6) angeordneten Flansch (14) aufweist, der mittels Flanschschrauben (15) mit dem Behälterdeckel (6) verbunden ist.2. A container according to claim 1, characterized in that the steel jacket (12) containing the valve block (11) has a flange (14) which is arranged at a distance from the container cover (6) and which means Flange screws (15) are connected to the container lid (6). 3. Behälter nach Anspruch 1, dadurch gekennzeichnet, daß die Ventilblockbohrungen (16) jeweils einen Ventilsitz (21) aufweisen, an dem ein Ventilschließkörper (2O) des Ventileinsatzes (19) anliegt.3. Container according to claim 1, characterized in that the valve block bores (16) each have a valve seat (21) on which a valve closing body (2O) of the valve insert (19) abuts. 4. Behälter nach Anspruch 1, dadurch gekennzeichnet,daß der Ventilblock (11) Zylinderform aufweist und in den zylindrischen Innenraum des Stahlmantels (12) passend eingesetzt ist und daß eine Stirnfläche (13) des Ventilblocks (11) an der Oberseite des Behälterdeckels (6) dichtend anliegt.4. A container according to claim 1, characterized in that the valve block (11) has a cylindrical shape and is inserted in the cylindrical interior of the steel jacket (12) and that an end face (13) of the valve block (11) on the top of the container cover (6th ) fits tightly. 5. Behälter nach Anspruch 1, dadurch gekennzeichnet, daß im Ventilblock (11) zwei senkrechte Ventilblockbohrungen (16) im Abst and nebeneinander angeordnet sind und daß ein Spülventileinsatz (26) in einer horizontalen Ventilblockbohrung (25) aufgenommen ist, die über Spülbohrungen (27) mit den beiden senkrechten Ventilblockbohrungen (16) verbunden ist.5. A container according to claim 1, characterized in that in the valve block (11) two vertical valve block bores (16) are arranged next to each other and in that a flush valve insert (26) is received in a horizontal valve block bore (25) which via flush bores (27 ) is connected to the two vertical valve block bores (16). 6. Behälter nach Anspruch 1, dadurch gekennzeichnet, daß in die Ventilblockbohrungen (16) mündende Zuleitungs- und Ableitungsbohrungen (23) durch den Stahlmantel (12) und den Ventilblock (11) verlaufen und daß jeweils ein Anschlußgewinde (24) in den Stahlmantel (12) und in den Ventilblock (11) geschnitten ist.6. A container according to claim 1, characterized in that in the valve block bores (16) opening supply and discharge bores (23) through the steel jacket (12) and the valve block (11) and that each have a connecting thread (24) in the steel jacket ( 12) and is cut in the valve block (11). 7. Behälter nach Anspruch 1, dadurch gekennzeichnet, daß der Ventilblock aus Polyvinylidenfluorid besteht.7. A container according to claim 1, characterized in that the valve block consists of polyvinylidene fluoride. 8. Behälter nach Anspruch 1, dadurch gekennzeichnet, daß die Auskleidung (4 bzw. 9) des Behälters (1) und des Behälterdeckels (6) aus Polyvinylidenfluorid besteht.8. A container according to claim 1, characterized in that the lining (4 or 9) of the container (1) and the container lid (6) consists of polyvinylidene fluoride. 9. Behälter nach Anspruch 1, dadurch gekennzeichnet, daß der Stahlmantel (12) des Ventilkopfes (1O) aus Edelstahl besteht.9. A container according to claim 1, characterized in that the steel jacket (12) of the valve head (1O) consists of stainless steel. 1O. Behälter nach Anspruch 1, dadurch gekennzeichnet, daß er aus Edelstahl besteht.1O. Container according to claim 1, characterized in that it consists of stainless steel.
EP86116761A 1985-12-14 1986-12-02 Container for agressive fluids Expired - Lifetime EP0226118B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853544260 DE3544260A1 (en) 1985-12-14 1985-12-14 CONTAINER FOR AGGRESSIVE LIQUIDS
DE3544260 1985-12-14

Publications (3)

Publication Number Publication Date
EP0226118A2 true EP0226118A2 (en) 1987-06-24
EP0226118A3 EP0226118A3 (en) 1988-04-27
EP0226118B1 EP0226118B1 (en) 1990-10-10

Family

ID=6288443

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86116761A Expired - Lifetime EP0226118B1 (en) 1985-12-14 1986-12-02 Container for agressive fluids

Country Status (9)

Country Link
US (1) US4738356A (en)
EP (1) EP0226118B1 (en)
JP (1) JPS62146181A (en)
KR (1) KR950005131B1 (en)
AU (1) AU599347B2 (en)
BR (1) BR8606140A (en)
CA (1) CA1283372C (en)
DE (2) DE3544260A1 (en)
SU (1) SU1572408A3 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000058414A1 (en) * 1999-03-29 2000-10-05 Daikin Industries, Ltd. Fluororesin powder coating composition
WO2009053134A1 (en) * 2007-10-23 2009-04-30 Evonik Degussa Gmbh Large container for handling and transporting high-purity and ultra high purity chemicals

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4851821A (en) * 1986-12-29 1989-07-25 Air Products And Chemicals, Inc. Disposable chemical container
US4966207A (en) * 1986-12-29 1990-10-30 Air Products And Chemicals, Inc. Disposable chemical container
US5046634A (en) * 1990-01-16 1991-09-10 Scholle Corporation Drum liner assembly
US5038960A (en) * 1990-12-03 1991-08-13 Seery John T Flexible liner system for tankers
MY110038A (en) * 1992-01-17 1997-11-29 Morris White Pty Ltd Fluid storage tank
US5319979A (en) * 1992-12-15 1994-06-14 Abbott Laboratories Load cell pressure sensor for pump cassette
AUPN657695A0 (en) * 1995-11-16 1995-12-07 Southcorp Australia Pty Ltd Water heater tank end seals and fittings
DE10200786B4 (en) * 2002-01-11 2004-11-11 Dockweiler Ag containment
DE102005024210B3 (en) * 2005-05-23 2007-02-08 Dockweiler Ag Metal organic substance accommodating safety tank, has valve block fixed with lid by fixing screws which are inserted through holes of respective connecting plates and running bore holes of block
US8016000B2 (en) 2006-04-19 2011-09-13 W. R. Grace & Co.-Conn. Processes and systems for transferring particulate substances from containers
ATE507433T1 (en) * 2008-08-13 2011-05-15 Mitsubishi Materials Corp LIQUID CHLOROSILAN STORAGE CONTAINER AND LOCKING LID THEREOF
CN117469577B (en) * 2023-10-26 2024-10-08 金锚电力控股有限公司 Liquid hydrogen decompression heat absorber

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1164774B (en) * 1959-11-25 1964-03-05 Karl Horst Knopf Fill and drain valve for containers with pressurized fluids
FR2229240A5 (en) * 1973-05-08 1974-12-06 Pampus Kg Corrosion-resistant containers - for dangerous or corrosive liquids, e.g. chromium plating baths
DE2446790A1 (en) * 1974-09-27 1976-04-15 Butzke Werke Ag Tap fitting for fluids or gases - has three plastic sections that prevent contact between corrosive fluid and metal components
JPS55115694A (en) * 1979-02-26 1980-09-05 Nippon Sanso Kk Standard gas container and production thereof

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1669022A (en) * 1926-07-29 1928-05-08 Union Tank Car Co Dome for tanks
US1846535A (en) * 1928-10-18 1932-02-23 Waffenschmidt August Carl Beverage handling apparatus
US2200903A (en) * 1937-02-04 1940-05-14 Percy W Stephens Valve for pressure cookers
US2469109A (en) * 1943-12-06 1949-05-03 Pfaudler Co Inc Noncorrodible valve
US2910988A (en) * 1956-02-01 1959-11-03 Anne P Treadaway Hair straightening device
US2972426A (en) * 1957-06-11 1961-02-21 Burpee O Sanford Boat trailer
DE1209827B (en) * 1958-03-21 1966-01-27 Gachot Jean Gate valve
US3623629A (en) * 1969-02-27 1971-11-30 John A Hendershot Tank liner
JPS4848580A (en) * 1971-10-20 1973-07-10
US4535803A (en) * 1984-03-19 1985-08-20 The Dow Chemical Company Plug valve

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1164774B (en) * 1959-11-25 1964-03-05 Karl Horst Knopf Fill and drain valve for containers with pressurized fluids
FR2229240A5 (en) * 1973-05-08 1974-12-06 Pampus Kg Corrosion-resistant containers - for dangerous or corrosive liquids, e.g. chromium plating baths
DE2446790A1 (en) * 1974-09-27 1976-04-15 Butzke Werke Ag Tap fitting for fluids or gases - has three plastic sections that prevent contact between corrosive fluid and metal components
JPS55115694A (en) * 1979-02-26 1980-09-05 Nippon Sanso Kk Standard gas container and production thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Band 4, Nr. 167 (M-42)[649], 19. November 1980; & JP-A-55 115 694 (NIPPON SANSO K.K.) 05-09-1980 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000058414A1 (en) * 1999-03-29 2000-10-05 Daikin Industries, Ltd. Fluororesin powder coating composition
US6734236B1 (en) 1999-03-29 2004-05-11 Daikin Industries, Ltd. Fluorine-containing resin powder coating composition
WO2009053134A1 (en) * 2007-10-23 2009-04-30 Evonik Degussa Gmbh Large container for handling and transporting high-purity and ultra high purity chemicals
US8485361B2 (en) 2007-10-23 2013-07-16 Evonik Degussa Gmbh Large container for handling and transporting high-purity and ultra high purity chemicals

Also Published As

Publication number Publication date
DE3674890D1 (en) 1990-11-15
AU599347B2 (en) 1990-07-19
AU6643986A (en) 1987-06-18
BR8606140A (en) 1987-09-22
US4738356A (en) 1988-04-19
CA1283372C (en) 1991-04-23
EP0226118B1 (en) 1990-10-10
JPS62146181A (en) 1987-06-30
SU1572408A3 (en) 1990-06-15
KR870005880A (en) 1987-07-07
EP0226118A3 (en) 1988-04-27
DE3544260A1 (en) 1987-06-19
KR950005131B1 (en) 1995-05-18

Similar Documents

Publication Publication Date Title
EP0226118B1 (en) Container for agressive fluids
DE60001062T2 (en) CONTAINER FILLING SYSTEM WITH INTEGRATED CLEANING DEVICE
DE3153394C2 (en)
DE4001731A1 (en) PRESSURE VESSEL
DE3114436A1 (en) &#34;CAP FOR A CONTAINER&#34;
DE3336750C2 (en)
DE1912905B2 (en) Corrosion-resistant cone valve
DE2949223C2 (en)
DE3142674A1 (en) Tank container
DE2131805A1 (en) Valve system
DE3544109A1 (en) Cap closure for medical vessels
DE3825575A1 (en) Shut-off valve, particularly for dangerous gases or liquids
EP0341533B1 (en) Dispensing closure for liquid-containers
DE3932202A1 (en) Discontinuous sampling arrangement for product line - has blocking and dispensing element which seals product line outlet before reaching its closed position
DE29619635U1 (en) Trocar sleeve with a flap valve
DE1948440A1 (en) Sluice for introducing bulk goods into gas-tight sealed spaces, especially alloying elements in steel degassing vessels
DE3413889C2 (en)
WO1989001879A1 (en) Coupling piece for insertion in an opening of a container
DE3933754C2 (en)
DE8805975U1 (en) Closing device for the tap hole of a tilting tap converter
EP0635847B1 (en) Shielding device for a vessel in a nuclear installation
DE2410532A1 (en) DISPENSING AND SAFETY VALVE FOR WHIPPED CONTAINER
DE4209682C2 (en) Safety device
DE3511642A1 (en) Leakproof container
DE1575851C3 (en) Self-closing spray valve

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): DE FR GB IT NL

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE FR GB IT NL

17P Request for examination filed

Effective date: 19880829

17Q First examination report despatched

Effective date: 19900323

ITF It: translation for a ep patent filed
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT NL

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
REF Corresponds to:

Ref document number: 3674890

Country of ref document: DE

Date of ref document: 19901115

ET Fr: translation filed
ITTA It: last paid annual fee
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
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19951123

Year of fee payment: 10

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

Ref country code: FR

Payment date: 19951212

Year of fee payment: 10

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

Ref country code: DE

Payment date: 19951214

Year of fee payment: 10

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

Ref country code: NL

Payment date: 19951230

Year of fee payment: 10

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

Ref country code: GB

Effective date: 19961202

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

Ref country code: NL

Effective date: 19970701

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

Effective date: 19961202

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

Ref country code: FR

Effective date: 19970829

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 19970701

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

Ref country code: DE

Effective date: 19970902

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

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: 20051202