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

EP0297372A2 - Transport container for very pure liquids - Google Patents

Transport container for very pure liquids Download PDF

Info

Publication number
EP0297372A2
EP0297372A2 EP88109750A EP88109750A EP0297372A2 EP 0297372 A2 EP0297372 A2 EP 0297372A2 EP 88109750 A EP88109750 A EP 88109750A EP 88109750 A EP88109750 A EP 88109750A EP 0297372 A2 EP0297372 A2 EP 0297372A2
Authority
EP
European Patent Office
Prior art keywords
transport container
container according
connecting pieces
container
angled
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
EP88109750A
Other languages
German (de)
French (fr)
Other versions
EP0297372B1 (en
EP0297372A3 (en
Inventor
Winfried Trinkaus
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.)
BASF SE
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 EP0297372A2 publication Critical patent/EP0297372A2/en
Publication of EP0297372A3 publication Critical patent/EP0297372A3/en
Application granted granted Critical
Publication of EP0297372B1 publication Critical patent/EP0297372B1/en
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
    • 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

Definitions

  • the invention relates to a transport container made of corrosion-resistant steel for high-purity liquids, with a screw or flange closure in an upper container wall and with at least two connecting pieces protruding from the screw or flange closure, at least one of which is connected to an immersion tube reaching to the bottom of the container.
  • Transport containers made of corrosion-resistant steel can be designed for higher mechanical stress than pressure containers; however, the immersion tubes required for the removal of the liquid and a level measurement present constructive difficulties.
  • German patent application P 36 36 888 which does not belong to the pre-published prior art, to attach the connecting piece of an immersion tube outside the screw closure in the upper container wall and to weld the lower end of the immersion tube to the container bottom via a web.
  • the aim is to keep the screw or flange closure as small as possible to execute, ie the closure opening should not be larger than is required for use as an inspection and cleaning opening.
  • the object of the invention is therefore to design a transport container of the type mentioned in such a way that, despite the small closure diameter, the connection piece protruding from the top plate does not interfere with one another, even with the pipe connections attached to it.
  • connecting pieces are angled upwards and outwards. This enables on the one hand to arrange the through holes through the head plate close together, so that the head plate and thus the screw or flange closure can be made with the smallest possible diameter; on the other hand, there is sufficient space around each connection piece to accommodate the respective connection fitting.
  • the immersion tube or possibly several immersion tubes are only attached to the common head plate and can thus be assembled and disassembled in a simple manner, it is not necessary in the manufacture of the transport container to carry out assembly or welding work inside the container, so that there is also no need for this Make the opening for the screw or flange closure larger than is necessary for inspection and cleaning purposes.
  • the cleaning of the container interior is facilitated by the fact that after the head plate has been removed, there are no built-in parts in the container interior. This fact also means that the closure opening can be chosen to be small.
  • the angled upward and outward angling of the connecting piece can be above, below or within the head plate.
  • dip tubes can be connected to one another in their lower region by at least one welded-on web. This significantly increases the rigidity of the interconnected dip tubes so that undesired deformations of the dip tubes, for example due to lateral forces exerted by the liquid, are avoided even with relatively thin or thin-walled dip tubes.
  • the dip tube has at its lower end a plastic sleeve projecting downward beyond the end of the metallic dip tube.
  • a plastic sleeve projecting downward beyond the end of the metallic dip tube.
  • Fig. 1 shows a vertical section of a transport container for high-purity liquids, such as are required in the manufacture of semiconductor components.
  • the transport container 1 made of corrosion-resistant steel by welding has a cylindrical wall section 2 which is connected to an upper container wall 3 and a container bottom 4 is connected, which are designed in a conventional manner as bobbin bottoms.
  • a screw cap 5 is arranged centrally in the upper container wall 3 and can be opened for inspection and cleaning purposes.
  • an immersion tube 6 For filling and emptying the transport container 1, an immersion tube 6 is provided, which has a connecting piece 7 at its upper end.
  • a second vertical immersion tube 8 is arranged parallel to the immersion tube 6, which serves to measure the fill level and also carries a connecting piece 9 at its upper end.
  • the two connecting pieces 7 and 9 of the dip tubes 6, 8 are carried out upwards through a common head plate 10 and angled upwards and outwards.
  • the head plate 10 forms a removable insert of the screw cap 5 and is held on it by a union nut 11.
  • a third connection piece 12 which can run straight or also obliquely from the head plate 10 and is passed through it, serves to connect a gas line in order to press out the liquid contained in the transport container 1 through the dip tube 6 serving for removal and the connection piece 7.
  • the screw cap 11 is arranged under a protective cap 13 which is removably attached to the upper container wall 3 and which is surrounded by a protective collar 14 which is provided with openings and which is welded to the upper container wall 3.
  • the two dip tubes 6 and 8 are connected to one another by a welded-on web 15.
  • the two immersion tubes 6 and 8 each have a plastic sleeve 16 and 17 at their lower end (FIG. 2).
  • Each plastic sleeve 16 or 17 protrudes downward beyond the end of the metallic dip tube 6 or 8 and has a stepped bore 18 or 19, the bore shoulder 20 or 21 of which rests on the lower end of the dip tube 6 or 8 on the end face.
  • the plastic sleeves 16, 17 can be pressed, shrunk or screwed onto the immersion tubes 6 or 8, for example.
  • the plastic sleeves 16, 17 prevent metallic contact of the immersion tubes 6, 8 with the container bottom 4 even in the event of extreme impacts which can occur in exceptional cases during transport.
  • plastic sleeves 16, 17 prevent the dip tubes 6, 8 from colliding.
  • the plastic sleeves 16, 17 consist of fluorinated, inert materials, so that a chemical reaction with the liquid is excluded.
  • connection piece 7, 9 takes place above the head plate 10
  • the bend of the connection piece 7, 9 can also lie below the head plate 10.
  • the angling can also take place in the section that lies within the head plate 10. All connecting pieces 7, 9 and 12 are designed differently in order to rule out any possibility of confusion.
  • the head plate 10 is shown in FIGS. 1 and 2 as an insert plate for the screw closure 5 shown in FIG. 1. Deviating from this, it is indicated in Fig. 3 that the head plate 10 'can be designed as a flange plate for a flange closure.
  • dip tubes 6, 8 are inserted after the completion of the transport container 1 through the upper connection opening and are not connected to the container bottom. This significantly simplifies the manufacture of the transport container 1; in addition, there are no internals in the interior of the transport container that could interfere with cleaning and inspection.

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
  • Closures For Containers (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)

Abstract

The transport container (1) consists of corrosion-resistant steel and has an upper screw closure (5), in which a top plate (10) is arranged. Two immersion pipes (6, 8), directed towards the bottom of the container bottom, are passed through the top plate (10). Their upper connection nozzles (7, 9) are bent obliquely upwards and outwards. Mounted in each case at the lower ends of the immersion pipes (6, 8) are plastic sleeves (16, 17) which prevent metallic contact of the immersion pipes (6, 8) with each other and with the container bottom (4). <IMAGE>

Description

Die Erfindung betrifft einen Transportbehälter aus korrosionsfestem Stahl für hochreine Flüssigkeiten, mit einem Schraub- oder Flanschverschluß in einer oberen Behälterwand und mit mindestens zwei aus dem Schraub- oder Flanschverschluß ragenden Anschlußstutzen, von denen mindestens einer mit einem bis zum Behälterboden reichenden Tauchrohr verbunden ist.The invention relates to a transport container made of corrosion-resistant steel for high-purity liquids, with a screw or flange closure in an upper container wall and with at least two connecting pieces protruding from the screw or flange closure, at least one of which is connected to an immersion tube reaching to the bottom of the container.

Bei der Herstellung von elektronischen Bauelementen werden in vielen Fällen Flüssigkeiten benötigt, an deren Reinheit höchste Ansprüche gestellt werden. Beim Transport, der Lagerung und der Handhabung müssen jegliche Verunreinigungen dieser Flüssigkeiten vermieden werden. Da diese Flüssigkeiten in vielen Fällen giftig oder in anderer Weise schädlich sind, muß ein unbeabsichtigtes Ausfließen, beispielsweise durch eine Beschädigung des Transportbehälters, mit hoher Sicherheit ausgeschlossen werden.In the production of electronic components, liquids are required in many cases, the purity of which places the highest demands. Any contamination of these liquids must be avoided during transport, storage and handling. Since these liquids are toxic or otherwise harmful in many cases, accidental leakage, for example due to damage to the transport container, must be prevented with a high degree of certainty.

Die Forderung, jegliche Verunreinigungen auszuschließen, wird zwar von Glasbehältern erfüllt. Deren Bruchgefahr schließt aber die Verwendung als Transportbehälter aus. Um die mechanische Beanspruchung gering zu halten, wurden Kunstoffbehälter für diesen Verwendungszweck bisher ausschließlich als drucklose Behälter ausgeführt. Dies macht es aber erforderlich, die Entnahme der Flüssigkeiten ebenfalls drucklos, nämlich mittels Saugpumpen durchzuführen. Diese Saugpumpen weisen aber bewegte, aneinander reibende Teile auf, so daß eine Verunreinigung durch im Pumpenbereich entstehenden Abrieb nicht vollständig ausgeschlossen werden kann.The requirement to exclude any contamination is met by glass containers. However, their risk of breakage excludes the use as a transport container. In order to keep the mechanical stress low, plastic containers have so far been used for this purpose designed exclusively as a pressureless container. However, this makes it necessary to also remove the liquids without pressure, namely by means of suction pumps. However, these suction pumps have moving parts that rub against each other, so that contamination from abrasion occurring in the pump area cannot be completely ruled out.

Aus korrosionsfestem Stahl bestehende Transportbehälter lassen sich zwar für eine höhere mechanische Beanspruchung als Druckbehälter ausführen; die für die Entnahme der Flüssigkeit und eine Füllstandsmessung erforderlichen Tauchrohre bereiten aber konstruktive Schwierigkeiten. Es ist einerseits schon vorgeschlagen worden (nicht zum vorveröffentlichten Stand der Technik gehörende deutsche Patentanmeldung P 36 36 888), den Anschlußstutzen eines Tauchrohres außerhalb des Schraubverschlusses in der oberen Behälterwand anzubringen und das Tauchrohr an seinem unteren Ende über einen Steg mit dem Behälterboden zu verschweißen.Transport containers made of corrosion-resistant steel can be designed for higher mechanical stress than pressure containers; however, the immersion tubes required for the removal of the liquid and a level measurement present constructive difficulties. On the one hand, it has already been proposed (German patent application P 36 36 888, which does not belong to the pre-published prior art), to attach the connecting piece of an immersion tube outside the screw closure in the upper container wall and to weld the lower end of the immersion tube to the container bottom via a web.

Andererseits ist es bei ähnlichen Behältern bekannt, mindestens ein Tauchrohr und gegebenenfalls weitere Rohranschlüsse durch die Kopfplatte des Schraub- oder Flanschverschlusses nach oben herauszuführen. Hierbei müssen die aus der Kopfplatte herausragenden Anschlußstutzen aureichend weit voneinander entfernt sein, um sich gegenseitig nicht zu stören. Dadurch wird eine gewisse Mindestgröße der Kopfplatte und somit ein gewisser Mindestdurchmesser des Schraub- oder Flanschverschlusses bedingt.On the other hand, it is known for similar containers to lead out at least one dip tube and possibly further tube connections upwards through the top plate of the screw or flange closure. Here, the connecting pieces protruding from the head plate must be sufficiently far apart so as not to interfere with one another. This results in a certain minimum size of the head plate and thus a certain minimum diameter of the screw or flange closure.

Gerade bei aus Stahl bestehenden Transportbehältern für hochreine Flüssigkeiten besteht aber das Bestreben, den Schraub- oder Flanschverschluß möglichst klein auszuführen, d. h. die Verschlußöffnung soll nicht größer sein als dies für die Verwendung als Inspektions- und Reinigungsöffnung erforderlich ist.Especially in the case of transport containers made of steel for high-purity liquids, however, the aim is to keep the screw or flange closure as small as possible to execute, ie the closure opening should not be larger than is required for use as an inspection and cleaning opening.

Aufgabe der Erfindung ist es daher, einen Transportbehälter der eingangs genannten Gattung so auszugestalten, daß trotz geringem Verschlußdurchmesser erreicht wird, daß sich die aus der Kopfplatte herausragenden Anschlußstutzen auch mit den daran angesetzten Rohranschlüssen gegenseitig nicht stören.The object of the invention is therefore to design a transport container of the type mentioned in such a way that, despite the small closure diameter, the connection piece protruding from the top plate does not interfere with one another, even with the pipe connections attached to it.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Anschlußstutzen schräg nach oben und außen abgewinkelt sind. Dadurch wird einerseits ermöglicht, die Durchtrittsbohrungen durch die Kopfplatte dicht beieinander anzuordnen, so daß die Kopfplatte und somit der Schraub- oder Flanschverschluß mit möglichst geringem Durchmesser ausgeführt werden können; andererseits steht aber um jeden Anschlußstutzen ausreichender Raum zur Aufnahme der jeweiligen Anschlußarmatur zur Verfügung.This object is achieved in that the connecting pieces are angled upwards and outwards. This enables on the one hand to arrange the through holes through the head plate close together, so that the head plate and thus the screw or flange closure can be made with the smallest possible diameter; on the other hand, there is sufficient space around each connection piece to accommodate the respective connection fitting.

Da das Tauchrohr oder gegebenenfalls mehrere Tauchrohre nur an der gemeinsamen Kopfplatte befestigt und somit in einfacher Weise montierbar und demontierbar sind, ist es bei der Herstellung des Transportbehälters nicht erforderlich, im Behälterinneren Montage- oder Schweißarbeiten auszuführen, so daß auch hierdurch keine Notwendigkeit besteht, die Öffnung für den Schraub- oder Flanschverschluß größer auszuführen als dies für die Inspektions- und Reinigungszwecke erforderlich ist. Die Reinigung des Behälterinnenraums wird dadurch erleichtert, daß sich nach der Abnahme der Kopfplatte keine Einbauteile im Behälterinnenraum mehr befinden. Auch dieser Umstand trägt dazu abei, daß die Verschlußöffnung klein gewählt werden kann.Since the immersion tube or possibly several immersion tubes are only attached to the common head plate and can thus be assembled and disassembled in a simple manner, it is not necessary in the manufacture of the transport container to carry out assembly or welding work inside the container, so that there is also no need for this Make the opening for the screw or flange closure larger than is necessary for inspection and cleaning purposes. The cleaning of the container interior is facilitated by the fact that after the head plate has been removed, there are no built-in parts in the container interior. This fact also means that the closure opening can be chosen to be small.

Die schräg nach oben und außen gerichtete Abwinklung der Anschlußstutzen kann über, unter oder innerhalb der Kopfplatte liegen.The angled upward and outward angling of the connecting piece can be above, below or within the head plate.

Wenn zwei oder mehr Tauchrohre vorgesehen sind, so können diese in ihrem unteren Bereich durch mindestens einen angeschweißten Steg miteinander verbunden sein. Dadurch wird die Steifigkeit der miteinander verbundenen Tauchrohre wesentlich erhöht, so daß unerwünschte Verformungen der Tauchrohre, beispielsweise durch von der Flüssigkeit ausgeübte Seitenkräfte, auch bei verhältnismäßig dünnen bzw. dünnwandigen Tauchrohren vermieden werden.If two or more dip tubes are provided, these can be connected to one another in their lower region by at least one welded-on web. This significantly increases the rigidity of the interconnected dip tubes so that undesired deformations of the dip tubes, for example due to lateral forces exerted by the liquid, are avoided even with relatively thin or thin-walled dip tubes.

Gemäß einer bevorzugten Ausführungsform der Erfindung ist vorgesehen, daß das Tauchrohr an seinem unteren Ende eine nach unten über das Ende des metallischen Tauchrohrs hinausragende Kunststoffhülse aufweist. Einerseits ist man bestrebt, das untere Ende des Tauchrohrs so dicht wie möglich über dem Behälterboden anzuordnen, um eine weitgehend vollständige Entleerung zu ermöglichen; andererseits muß aber eine metallische Berührung zwischen dem Tauchrohr und dem Behälterboden ausgeschlossen sein, um einen metallischen Abrieb und insbesondere bei entleertem Behälter eine Funkenbildung zu vermeiden, da in den entleerten Behältern möglicherweise eine explosive Atmosphäre herrscht, zumal die Transportbehälter für hochreine Flüssigkeiten üblicherweise für den Leertransport nicht entgast werden, um Verunreinigungen zu vermeiden. Die aufgesetzte Kunststoffhülse verhindert auch bei starken stoßartigen Belastungen beim Transport ein metallisches Anschlagen der Tauchrohre aneinander oder an den Behälterboden.According to a preferred embodiment of the invention, it is provided that the dip tube has at its lower end a plastic sleeve projecting downward beyond the end of the metallic dip tube. On the one hand, efforts are made to arrange the lower end of the dip tube as close as possible to the bottom of the container in order to enable a largely complete emptying; on the other hand, a metallic contact between the immersion tube and the tank bottom must be ruled out in order to avoid metallic abrasion and, in particular, sparking when the tank is empty, since there may be an explosive atmosphere in the empty tanks, especially since the transport tanks for high-purity liquids are usually used for empty transportation not degassed to avoid contamination. The attached plastic sleeve prevents metallic collision of the dip tubes against each other or against the bottom of the container, even in the event of heavy impact loads.

Damit entfällt die Notwendigkeit einer festen Schweißverbindung des Tauchrohrs bzw. der Tauchrohre mit dem Behälterboden, wodurch wiederum eine freihängende Bauweise mit ausschließlicher Befestigung des Tauchrohrs bzw. der Tauchrohre in der abnehmbaren Kopfplatte des Schraub- oder Flanschverschlusses ermöglicht wird.This eliminates the need for a fixed weld connection of the immersion tube or the immersion tubes to the tank bottom, which in turn enables a free-hanging construction with exclusive fastening of the immersion tube or the immersion tubes in the removable head plate of the screw or flange closure.

Da das Tauchrohr bzw. die Tauchrohre nach Fertigstellung des Behälters durch die Verschlußöffnung in den Behälter eingebracht werden, wird die Fertigung erheblich vereinfacht und die Zahl von Verschweißungen vermindert, die mögliche Verunreinigungsquellen sind.Since the dip tube or the dip tubes are inserted into the container through the closure opening after completion of the container, production is considerably simplified and the number of welds which are possible sources of contamination is reduced.

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

Die Erfindung wird nachfolgend an Ausführungsbeispielen näher erläutert, die in der Zeichnung dargestellt sind. Es zeigt:

  • Fig. 1 in einem vereinfachten senkrechten Schnitt einen Transportbehälter für hochreine Flüssigkeiten,
  • Fig. 2 einen vergrößerten senkrechten Teilschnitt am oberen und unteren Ende der Tauchrohre und
  • Fig. 3 einen ebenfalls vergrößerten senkrechten Schnitt im Bereich der Kopfplatte am oberen Ende der Tauchrohre bei einer abgewandelten Ausführungsform.
The invention is explained in more detail below using exemplary embodiments which are illustrated in the drawing. It shows:
  • 1 in a simplified vertical section, a transport container for high-purity liquids,
  • Fig. 2 is an enlarged vertical partial section at the upper and lower ends of the dip tubes and
  • Fig. 3 is also an enlarged vertical section in the region of the head plate at the upper end of the dip tubes in a modified embodiment.

Fig. 1 zeigt in einem senkrechten Schnitt einen Transportbehälter für hochreine Flüssigkeiten, wie sie bei der Herstellung von Halbleiterbauteilen benötigt werden. Der aus korrosionsfestem Stahl durch Schweißen hergestellte Transportbehälter 1 weist einen zylindrischen Wandabschnitt 2 auf, der mit einer oberen Behälterwand 3 und einem Behälterboden 4 verbunden ist, die in herkömmlicher Weise als Klöpperböden ausgebildet sind. In der oberen Behälterwand 3 ist zentrisch ein Schraubverschluß 5 angeordnet, der zu Inspektions- und Reinigungszwecken geöffnet werden kann.Fig. 1 shows a vertical section of a transport container for high-purity liquids, such as are required in the manufacture of semiconductor components. The transport container 1 made of corrosion-resistant steel by welding has a cylindrical wall section 2 which is connected to an upper container wall 3 and a container bottom 4 is connected, which are designed in a conventional manner as bobbin bottoms. A screw cap 5 is arranged centrally in the upper container wall 3 and can be opened for inspection and cleaning purposes.

Zum Befüllen und Entleeren des Transportbehälters 1 ist ein Tauchrohr 6 vorgesehen, das an seinem oberen Ende einen Anschlußstutzen 7 aufweist. Parallel zu dem Tauchrohr 6 ist ein zweites senkrechtes Tauchrohr 8 angeordnet, das der Füllstands-Perlmessung dient und an seinem oberen Ende ebenfalls einen Anschlußstutzen 9 trägt.For filling and emptying the transport container 1, an immersion tube 6 is provided, which has a connecting piece 7 at its upper end. A second vertical immersion tube 8 is arranged parallel to the immersion tube 6, which serves to measure the fill level and also carries a connecting piece 9 at its upper end.

Die beiden Anschlußstutzen 7 und 9 der Tauchrohre 6, 8 sind durch eine gemeinsame Kopfplatte 10 nach oben hin durchgeführt und schräg nach oben und außen abgewinkelt. Die Kopfplatte 10 bildet einen herausnehmbaren Einsatz des Schraubverschlußes 5 und wird auf diesem durch eine Überwurfmutter 11 gehalten.The two connecting pieces 7 and 9 of the dip tubes 6, 8 are carried out upwards through a common head plate 10 and angled upwards and outwards. The head plate 10 forms a removable insert of the screw cap 5 and is held on it by a union nut 11.

Ein dritter Anschlußstutzen 12, der gerade oder ebenfalls schräg von der Kopfplatte 10 verlaufen kann und durch diese hindurchgeführt ist, dient zum Anschluß einer Gasleitung, um die in Transportbehälter 1 enthaltene Flüssigkeit durch das der Entnahme dienende Tauchrohr 6 und den Anschlußstutzen 7 herauszudrücken.A third connection piece 12, which can run straight or also obliquely from the head plate 10 and is passed through it, serves to connect a gas line in order to press out the liquid contained in the transport container 1 through the dip tube 6 serving for removal and the connection piece 7.

Der Schraubverschluß 11 ist unter einer abnehmbar an der oberen Behälterwand 3 angebrachten Schutzkappe 13 angeordnet, die von einem mit Durchbrechungen versehenen Schutzkragen 14 umgeben ist, der an der oberen Behälterwand 3 angeschweißt ist.The screw cap 11 is arranged under a protective cap 13 which is removably attached to the upper container wall 3 and which is surrounded by a protective collar 14 which is provided with openings and which is welded to the upper container wall 3.

Nahe ihren unteren Enden sind die beiden Tauchrohre 6 und 8 durch einen angeschweißten Steg 15 miteinander verbunden. Die beiden Tauchrohre 6 und 8 tragen an ihren unteren Ende jeweils eine Kunstoffhülse 16 bzw. 17 (Fig. 2). Jede Kunstoffhülse 16 bzw. 17 ragt nach unten über das Ende des metallischen Tauchrohrs 6 bzw. 8 hinaus und weist eine abgesetzte Bohrung 18 bzw. 19 auf, deren Bohrungsabsatz 20 bzw. 21 am unteren Ende des Tauchrohrs 6 bzw. 8 stirnseitig anliegt. Die Kunstoffhülsen 16, 17 können auf die Tauchrohre 6 bzw. 8 beispielsweise aufgepreßt, aufgeschrumpft oder aufgeschraubt sein. Die Kunstoffhülsen 16, 17 verhindern eine metallische Berührung der Tauchrohr 6, 8 mit dem Behälterboden 4 auch bei extremen Stößen, die beim Transport in Ausnahmefällen auftreten können. Dadurch wird die Bildung von Abrieb und insbesondere eine mögliche Funkenbildung vermieden, die beim Transport von entleerten, jedoch nicht entgasten Transportbehältern 2 zu einer Explosion führen könnte. Auch wenn kein Steg 15 zur Verbindung der beiden Tauchrohre 6, 8 vorgesehen ist, verhindern die Kunstoffhülsen 16, 17 ein Aneinanderschlagen der Tauchrohre 6, 8. Die Kunstoffhülsen 16, 17 bestehen aus fluorierten, inerten Werkstoffen, so daß eine chmische Reaktion mit der Flüssigkeit ausgeschlossen ist.Near their lower ends, the two dip tubes 6 and 8 are connected to one another by a welded-on web 15. The two immersion tubes 6 and 8 each have a plastic sleeve 16 and 17 at their lower end (FIG. 2). Each plastic sleeve 16 or 17 protrudes downward beyond the end of the metallic dip tube 6 or 8 and has a stepped bore 18 or 19, the bore shoulder 20 or 21 of which rests on the lower end of the dip tube 6 or 8 on the end face. The plastic sleeves 16, 17 can be pressed, shrunk or screwed onto the immersion tubes 6 or 8, for example. The plastic sleeves 16, 17 prevent metallic contact of the immersion tubes 6, 8 with the container bottom 4 even in the event of extreme impacts which can occur in exceptional cases during transport. This avoids the formation of abrasion and, in particular, possible spark formation, which could lead to an explosion when transporting emptied but not degassed transport containers 2. Even if no web 15 is provided for connecting the two dip tubes 6, 8, the plastic sleeves 16, 17 prevent the dip tubes 6, 8 from colliding. The plastic sleeves 16, 17 consist of fluorinated, inert materials, so that a chemical reaction with the liquid is excluded.

Während bei der in Fig. 1 gezeigten Ausführungsform die Abwinklung der Anschlußstutzen 7, 9 oberhalb der Kopfplatte 10 erfolgt, ist in den Fig. 2 und 3 beispielsweise gezeigt, daß die Abwinklung der Anschlußstutzen 7, 9 auch unterhalb der Kopfplatte 10 liegen kann. Stattdessen kann die Abwinklung auch in dem Abschnitt erfolgen, der innerhalb der Kopfplatte 10 liegt. Alle Anschlußstutzen 7, 9 und 12 sind unterschiedlich gestaltet, um eine Verwechslungsmöglichkeit auszuschließen.While in the embodiment shown in FIG. 1 the bend of the connection piece 7, 9 takes place above the head plate 10, it is shown in FIGS. 2 and 3, for example, that the bend of the connection piece 7, 9 can also lie below the head plate 10. Instead, the angling can also take place in the section that lies within the head plate 10. All connecting pieces 7, 9 and 12 are designed differently in order to rule out any possibility of confusion.

Die Kopfplatte 10 ist in den Fig. 1 und 2 als eine Einsatzplatte für den in Fig. 1 gezeigten Schraubverschluß 5 dargestellt. Abweichend davon ist in Fig. 3 angedeutet, daß die Kopfplatte 10′ als Flanschplatte für einen Flanschverschluß ausgeführt sein kann.The head plate 10 is shown in FIGS. 1 and 2 as an insert plate for the screw closure 5 shown in FIG. 1. Deviating from this, it is indicated in Fig. 3 that the head plate 10 'can be designed as a flange plate for a flange closure.

Allen Ausführungsformen ist gemeinsam, daß die Tauchrohre 6, 8 nach Fertigstellung des Transportbehälters 1 durch die obere Anschlußöffnung eingebracht und nicht mit dem Behälterboden vebunden werden. Dadurch wird die Fertigung des Transportbehälter1 wesentlich vereinfacht; außerdem sind keine Einbauten im Innenraum des Transportbehälters vorhanden, die die Reinigung und Inspektion stören könnten.All embodiments have in common that the dip tubes 6, 8 are inserted after the completion of the transport container 1 through the upper connection opening and are not connected to the container bottom. This significantly simplifies the manufacture of the transport container 1; in addition, there are no internals in the interior of the transport container that could interfere with cleaning and inspection.

Claims (8)

1. Transportbehälter aus korrosionsfestem Stahl für hochreine Flüssigkeiten, mit einem Schraub- oder Flanschverschluß in einer oberen Behälterwand und mit mindestens zwei aus dem Schraub- oder Flanschverschluß ragenden Anschlußstutzen, von denen mindestens einer mit einem bis zum Behälterboden reichenden Tauchrohr verbunden ist, dadurch gekennzeichnet, daß die Anschlußstutzen (7, 9) schräg nach oben und außen abgewinkelt sind.1. Transport container made of corrosion-resistant steel for high-purity liquids, with a screw or flange closure in an upper container wall and with at least two connecting pieces protruding from the screw or flange closure, at least one of which is connected to an immersion tube reaching to the bottom of the container, characterized in that that the connecting pieces (7, 9) are angled upwards and outwards. 2. Transportbehälter nach Anspruch 1, dadurch gekennzeichnet, daß die Anschlußstutzen (7, 9) parallel zueinander durch die Kopfplatte (10) geführt und über dieser schräg nach außen abgewinkelt sind.2. Transport container according to claim 1, characterized in that the connecting pieces (7, 9) parallel to each other through the head plate (10) and are angled obliquely outwards over this. 3. Transportbehälter nach Anspruch 1, dadurch gekennzeichnet, daß die Anschlußstutzen unterhalb der Kopfplatte (10 10′) schräg nach außen abgewinkelt sind und ihre abgewinkelten Abschnitte durch die Kopfplatte (10, 10′) hindurchgeführt sind.3. Transport container according to claim 1, characterized in that the connecting pieces below the top plate (10 10 ') are angled outwards and their angled sections are passed through the top plate (10, 10'). 4. Transportbehälter nach Anspruch 1, dadurch gekennzeichnet, daß die Anschlußstutzen (7, 9) in ihrem in der Kopfplatte (10) liegenden Anschnitt schräg nach außen abgewinkelt sind.4. Transport container according to claim 1, characterized in that the connecting pieces (7, 9) in their in the head plate (10) lying chamfer are angled outwards. 5. Transportbehälter nach einem der Ansprüche 1 - 4, dadurch gekennzeichnet, daß zwei oder mehr Tauchrohre (6, 8) in ihrem unteren Bereich durch mindestens einen angeschweißten Steg (15) miteinander verbunden sind.5. Transport container according to one of claims 1-4, characterized in that two or more immersion tubes (6, 8) are connected to one another in their lower region by at least one welded-on web (15). 6. Transportbehälter nach einem der Ansprüche 1 - 5, dadurch gekennzeichnet, daß das Tauchrohr (6 bzw. 8) an seinem unteren Ende eine nach unten über das Ende des metallischen Tauchrohrs (6 bzw. 8) hinausragende Kunstoffhülse (16 bzw. 17) aufweist.6. Transport container according to one of claims 1-5, characterized in that the dip tube (6 or 8) at its lower end a down over the end of the metallic dip tube (6 or 8) projecting plastic sleeve (16 or 17) having. 7. Transportbehälter nach Anspruch 6, dadurch gekennzeichnet, daß die Kunstoffhülse (16 bzw. 17) eine abgesetzte Bohrung (18 bzw. 19) aufweist, deren Bohrungsabsatz (20 bzw. 21) am unteren Ende des Tauchrohrs (6 bzw. 8) stirnseitig anliegt.7. Transport container according to claim 6, characterized in that the plastic sleeve (16 or 17) has a stepped bore (18 or 19), the shoulder of the bore (20 or 21) at the lower end of the dip tube (6 or 8) on the end face is present. 8. Transportbehälter nach Anschluß 6, dadurch gekennzeichnet, daß die Kunstoffhülse (16 bzw. 17) auf das Tauchrohr (6 bzw, 8) aufgepreßt ist.8. Transport container according to connection 6, characterized in that the plastic sleeve (16 or 17) is pressed onto the dip tube (6 or, 8).
EP88109750A 1987-07-02 1988-06-18 Transport container for very pure liquids Expired - Lifetime EP0297372B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3721818 1987-07-02
DE19873721818 DE3721818A1 (en) 1987-07-02 1987-07-02 CONTAINER FOR HIGH-PURITY LIQUIDS

Publications (3)

Publication Number Publication Date
EP0297372A2 true EP0297372A2 (en) 1989-01-04
EP0297372A3 EP0297372A3 (en) 1989-06-07
EP0297372B1 EP0297372B1 (en) 1992-12-16

Family

ID=6330724

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88109750A Expired - Lifetime EP0297372B1 (en) 1987-07-02 1988-06-18 Transport container for very pure liquids

Country Status (2)

Country Link
EP (1) EP0297372B1 (en)
DE (2) DE3721818A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0557913A2 (en) * 1992-02-24 1993-09-01 Aeroquip Corporation Fluid dispensing apparatus
SG117495A1 (en) * 2003-06-24 2005-12-29 Air Prod & Chem High purity chemical container with diptube and level sensor terminating in lowest most point of concave floor
WO2010069893A1 (en) * 2008-12-15 2010-06-24 Solvay Fluor Gmbh Container containing fluorinated organic carbonates
JP2019079076A (en) * 2016-09-30 2019-05-23 Dic株式会社 Liquid crystal material storage container

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR616185A (en) * 1926-05-15 1927-01-25 Carburetor for acids with plug for drain under pressure and drain plug under pressure suitable for stoneware carboys
FR1133428A (en) * 1955-05-16 1957-03-27 Special device for bottles, allowing the leak-proof transfer of volatile liquids
GB847354A (en) * 1955-06-30 1960-09-07 Sankey & Sons Ltd Joseph Improvements in or relating to containers for liquids
DE2159536A1 (en) * 1971-12-01 1973-06-07 Bergwerksverband Gmbh Gas filling and exhaustion attachment - allowing sampling at various points in the container
US4594903A (en) * 1984-11-19 1986-06-17 Ethylene Corp Dip tube sampling means for chemical reactors

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US674055A (en) * 1900-08-20 1901-05-14 Emil Paul Datow Oil-can.
DE814113C (en) * 1949-06-21 1951-09-20 Klaus Peters Pourer with air tube
US4699298A (en) * 1985-03-20 1987-10-13 Fsi Corporation Bung connection

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR616185A (en) * 1926-05-15 1927-01-25 Carburetor for acids with plug for drain under pressure and drain plug under pressure suitable for stoneware carboys
FR1133428A (en) * 1955-05-16 1957-03-27 Special device for bottles, allowing the leak-proof transfer of volatile liquids
GB847354A (en) * 1955-06-30 1960-09-07 Sankey & Sons Ltd Joseph Improvements in or relating to containers for liquids
DE2159536A1 (en) * 1971-12-01 1973-06-07 Bergwerksverband Gmbh Gas filling and exhaustion attachment - allowing sampling at various points in the container
US4594903A (en) * 1984-11-19 1986-06-17 Ethylene Corp Dip tube sampling means for chemical reactors

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0557913A2 (en) * 1992-02-24 1993-09-01 Aeroquip Corporation Fluid dispensing apparatus
EP0557913A3 (en) * 1992-02-24 1994-08-03 Aeroquip Corp
US5356045A (en) * 1992-02-24 1994-10-18 Aeroquip Corporation Fluid dispensing apparatus having tamper evident assemblies
SG117495A1 (en) * 2003-06-24 2005-12-29 Air Prod & Chem High purity chemical container with diptube and level sensor terminating in lowest most point of concave floor
US7124913B2 (en) 2003-06-24 2006-10-24 Air Products And Chemicals, Inc. High purity chemical container with diptube and level sensor terminating in lowest most point of concave floor
WO2010069893A1 (en) * 2008-12-15 2010-06-24 Solvay Fluor Gmbh Container containing fluorinated organic carbonates
US20110233104A1 (en) * 2008-12-15 2011-09-29 Solvay Fluor Gmbh Container containing fluorinated organic carbonates
CN102245589A (en) * 2008-12-15 2011-11-16 苏威氟有限公司 Container containing fluorinated organic carbonates
US8863479B2 (en) * 2008-12-15 2014-10-21 Solvay Fluor Gmbh Container containing fluorinated organic carbonates
JP2019079076A (en) * 2016-09-30 2019-05-23 Dic株式会社 Liquid crystal material storage container

Also Published As

Publication number Publication date
DE3721818A1 (en) 1989-01-12
EP0297372B1 (en) 1992-12-16
DE3876695D1 (en) 1993-01-28
EP0297372A3 (en) 1989-06-07

Similar Documents

Publication Publication Date Title
DE69513174T2 (en) SYSTEM FOR DISPENSING AND RECIRCULATING CHEMICAL LIQUIDS
DE69315511T2 (en) Liquid chemical containers and dispensing system
EP0358960A1 (en) Container with a bung
DE69123453T2 (en) STOCK WITH A DRAINAGE CHANNEL
DE19838685C1 (en) Emptying device for fluid containers
DE3636888A1 (en) CONTAINER FOR HIGH-PURITY CHEMICALS
DD273613A1 (en) head drum
DE69103620T2 (en) Liquid container with removable cover.
EP0297372B1 (en) Transport container for very pure liquids
DE3636886C2 (en) Shipping container
DE3637455C2 (en) Transport container for liquid chemicals
DE3142674C2 (en) &#34;Tank container&#34;
DE69822517T2 (en) STORAGE AND TRANSPORT CONTAINERS FOR LIQUIDS
EP0336190A1 (en) Envelope for housing a bundle of fuel rods containing nuclear fuel
DE69411702T2 (en) TIN CAN WITH QUICK EMPTYING MEANS
DE10200786B4 (en) containment
EP0031438A2 (en) Transporting and withdrawing apparatus
DE3913643C2 (en)
DE20301263U1 (en) Lid for the dome of a portable fuel tank
EP1047602B1 (en) Transport drum for liquids
DE3823285C2 (en)
EP0289649A1 (en) Closure device for the outlet of a fluid-container
DE4141774A1 (en) Multi-way transport container for industrial liquids - has dispenser for pressing or sucking the liquid through sub-tube with filling and discharge openings
DE929179C (en) Container with a pouring opening
EP0205848A1 (en) Transport and supply container for liquid printing inks

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): CH DE FR GB IT LI NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

RHK1 Main classification (correction)

Ipc: B65D 85/00

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): CH DE FR GB IT LI NL SE

17P Request for examination filed

Effective date: 19891020

17Q First examination report despatched

Effective date: 19910708

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): CH DE FR GB IT LI NL SE

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

Effective date: 19921221

REF Corresponds to:

Ref document number: 3876695

Country of ref document: DE

Date of ref document: 19930128

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
EAL Se: european patent in force in sweden

Ref document number: 88109750.5

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: SE

Payment date: 20030604

Year of fee payment: 16

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

Ref country code: GB

Payment date: 20030618

Year of fee payment: 16

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

Ref country code: CH

Payment date: 20030702

Year of fee payment: 16

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

Ref country code: GB

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

Effective date: 20040618

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

Ref country code: SE

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

Effective date: 20040619

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

Ref country code: LI

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

Effective date: 20040630

Ref country code: CH

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

Effective date: 20040630

EUG Se: european patent has lapsed
EUG Se: european patent has lapsed
GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20040618

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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: 20050618

NLS Nl: assignments of ep-patents

Owner name: BASF AKTIENGESELLSCHAFT

Effective date: 20050630

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

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

Ref country code: NL

Payment date: 20070523

Year of fee payment: 20

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

Ref country code: DE

Payment date: 20070614

Year of fee payment: 20

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

Ref country code: FR

Payment date: 20070608

Year of fee payment: 20

NLV7 Nl: ceased due to reaching the maximum lifetime of a patent

Effective date: 20080618

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

Ref country code: NL

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20080618