EP3393932B1 - Transport and storage container for liquids - Google Patents

Description

The present invention relates to a transport and storage container for liquids according to the preamble of claim 1.

The known transport and storage containers of the type mentioned are mainly used for the transport of liquids, which within the framework of appropriate regulations in the sense of a fire protection regulation after the filling of the liquids and the transport of the liquids in the container also enable the liquids to be stored in the same container. In cases in which particularly flammability of the liquids contained in the container or corresponding fire protection regulations at the storage location require special precautions for the storage of the liquids, a transfer of the liquids into storage containers is required regularly after transport, which in particular to reduce the fire load Way. Storage containers of this type enable the fire resistance to be increased and thus the liquids to be stored in a manner which also meets more stringent fire protection regulations.

From the EP 0 879 771 A1 a transport and storage container for liquids is known which has a support insert with four side walls between an inner container and an outer container.

The DE 101 61 693 A1 shows a transport and storage container for liquids, which has a fire protection jacket with four side walls between the inner container and outer container.

The present invention is based on the object of proposing a transport and storage container which, after the transport of highly flammable liquids in the container, also enables their storage without the need to transfer the liquids into separate storage containers.

To achieve this object, the present invention has the features of claim 1.

The transport and storage container according to the invention has, between the inner container and the outer jacket, an intermediate container made of sheet metal which receives the inner container on all sides, which has a jacket shell, a container lid connected to the jacket shell and a container bottom connected to the jacket shell, the container bottom through the support base of the base frame is formed.

The arrangement of an intermediate container between the outer jacket and the inner container increases the fire resistance of the container with regard to the fire load of the container defined by the combustible liquid contained in the container. Furthermore, the intermediate container prevents the flammable liquid from being able to get out of the inner container into the environment of the transport and storage container in the event of a failure of the plastic inner container as a result of thermal overload.

By using the support base of the underframe as the container base of the intermediate container receiving the inner container on all sides, the Increased fire protection for the inner container or the flammable liquid contained therein combined with only a comparatively small increase in the total container weight.

The design of the intermediate container with a container lid enables the transport and storage container according to the invention to be conventionally equipped with the inner container from above, so that the inner container for arrangement in the intermediate container is inserted from above into the jacket shell and on the support base of the underframe, which at the same time is the container base of the intermediate container trains, can be discontinued.

According to the invention, the casing shell for the formation of the intermediate container is integrally connected to the support base at its lower edge, which is designed as a connecting edge, so that a connection secured against leakage is possible even when the connection between the casing cover and the support base is subjected to high thermal stress.

The cohesive connection, regardless of the casing and the support base, eliminates the need for connecting elements that are subject to the possibility of component failure under thermal stress. The integral connection between the jacket shell and the support base can in principle be formed by a one-piece design of the jacket cover together with the support base.

According to an advantageous embodiment of the transport and storage container, the container lid has a lid cap for covering the filler neck of the inner container which is passed through a lid opening, so that filling or emptying through the nozzle of the inner container already inserted into the intermediate container without the need to remove the container lid can be done.

It proves to be particularly advantageous if the container lid is detachably connected to the casing of the intermediate container, since the inner container can thus be removed from the intermediate container for cleaning the inner container or reconditioning of the transport and storage container.

For this purpose, the container lid is preferably connected to the jacket shell by screw connections.

Although it is in principle also possible to provide the inner container with only a nozzle on its upper side which is suitable both for filling and for emptying the inner container, it has proven to be advantageous if the inner container on its upper side is independent of the filler neck Has formed discharge nozzle, and the container lid has a receiving opening delimited by a locking edge for carrying out the discharge nozzle, the diameter D of the receiving opening being smaller than the outer diameter d of a locking collar formed on the discharge nozzle.

Due to this preferred embodiment, the production of a joined connection between the inner container and the container lid of the intermediate container is possible in such a way that when the emptying nozzle is inserted into the receiving opening of the container lid between the latching collar of the emptying nozzle and the latching edge of the inner container, a latching connection is established. Thus, the inner container can be handled as an assembly unit during assembly of the transport and storage container together with the container lid connected via the snap-in connection, inserted into the casing and placed on the supporting base of the base frame.

If the inner container has two emptying nozzles on its upper side, which are preferably arranged on both sides of the filler neck, and the container lid has two receiving openings assigned to the emptying nozzles has, the container lid is not only connected to the inner container, but is also defined in terms of its relative arrangement to the inner container by the two emptying nozzles inserted into the associated receiving openings of the container lid, so that the container lid automatically changes into the jacket of the intermediate container after the inner container has been inserted suitable position for a subsequent connection of the container lid with the jacket casing.

A production of the casing cover independent of the support floor with a subsequently integrally formed connection between the casing cover and the support floor is possible in that the casing cover is connected to the support floor at its connecting edge via a welded connection.

If the sheath for forming the welded connection has a circumferential, outwardly facing weld shoulder on its connecting edge, which abuts a rising outer wall flank of a bottom wall of the supporting base framing a supporting surface for supporting the inner container, there is a defined weld contact zone between the connecting edge of the outer casing and formed the bottom wall of the support base so that the weld seam can be carried out with a quality required for a sealing seam.

It is particularly advantageous if the weld seam is designed as a resistance weld, in the manufacture of which the welding partners, i.e. the welding shoulder of the casing and the wall flank of the support base, are pressed against one another, so that on the one hand no additional welding material is required to carry out the weld connection and on the other hand one weld seam free of gas inclusions as a prerequisite for a permanent weld connection even under high temperature conditions.

If the lid has a lid base with a circumferential lid edge projecting downward over the top of the inner container, the cross-sectional contour of which is adapted to the cross-sectional contour of a circumferential upper edge of the inner container in the transition from the top to a side wall of the inner container, the container lid allows after connection with the jacket of the intermediate container in the region of the upper edge of the inner container, there is a similarly effective lateral support of the inner container as occurs through the bottom wall of the supporting base along the circumferential lower edge of the inner container in the transition from the side walls of the inner container to the underside of the inner container.

A preferred embodiment of the transport and storage container is explained in more detail below with reference to the drawings.

Fig. 1

eine isometrische Darstellung des Transport- und Lagerbehälters;

Fig. 2

einen Fußrahmen eines Untergestell des in Fig. 1 dargestellten Transport- und Lagerbehälters;

Fig. 3

einen Stützboden zur Anordnung auf dem in Fig. 2 dargestellten Fußrahmen und Ausbildung eines palettenartigen Untergestells;

Fig. 4

eine Mantelhülle zur Aufnahme eines Innenbehälters des in Fig. 1 dargestellten Transport- und Lagerbehälters;

Fig. 5

den in Fig. 3 dargestellten Stützboden in einer durch eine Schweißverbindung mit der in Fig. 4 dargestellten Mantelhülle stoffschlüssig verbundenen Anordnung zur Ausbildung eines Behältertopfes;

Fig. 6

eine Teilschnittdarstellung gemäß Schnittlinienverlauf VI-VI des in Fig. 5 dargestellten Behältertopfes;

Fig. 7

eine aus einem Behälterdeckel und dem Innenbehälter gebildete Montageeinheit;

Fig. 8

eine Teilschnittdarstellung der in Fig. 7 dargestellten Montageeinheit gemäß Schnittlinienverlauf VIII-VIII in Fig. 7 ;

Fig. 9

die in den Behältertopf zur Ausbildung eines Zwischenbehälters eingesetzte Montageeinheit;

Fig. 10

einen Montagevorgang zur Ausbildung des in Fig. 1 dargestellten Transport- und Lagerbehälters;

Fig. 11

eine vergrößerte Teilschnittdarstellung des zur Abdeckung eines Einfüllstutzens des Innenbehälters mit einer Deckelkappe versehenen Behälterdeckels.

Show it:

Fig. 1

an isometric view of the transport and storage container;

Fig. 2

a foot frame of a base of the in Fig. 1 illustrated transport and storage container;

Fig. 3

a support floor for arrangement on the in Fig. 2 illustrated foot frame and formation of a pallet-like base frame;

Fig. 4

a jacket for receiving an inner container of the in Fig. 1 illustrated transport and storage container;

Fig. 5

the in Fig. 3 Support base shown in a welded connection with the in Fig. 4 Sheath casing shown cohesively connected arrangement to form a container pot;

Fig. 6

a partial sectional view according to section line VI-VI of in Fig. 5 shown container pot;

Fig. 7

a mounting unit formed from a container lid and the inner container;

Fig. 8

a partial sectional view of the in Fig. 7 assembly unit shown according to section line VIII-VIII in Fig. 7 ;

Fig. 9

the assembly unit used in the container pot to form an intermediate container;

Fig. 10

an assembly process for training the in Fig. 1 illustrated transport and storage container;

Fig. 11

an enlarged partial sectional view of the cover provided for covering a filler neck of the inner container with a lid cap.

Fig. 1 shows a transport and storage container 20 with a in Fig. 1 Inner container 22 shown with a broken line, inserted into an intermediate container 21.

The in Fig. 1 Intermediate container 21 shown is also in an individual representation in Fig. 3 Support floor 23 shown of a pallet-like base frame 24, one, in individual representation also in Fig. 4 shown casing 25 and a container lid 26 which is arranged on the inner container 22 and, like the support base 23, is connected to the casing 25 ( Fig. 9 ).

How further out Fig. 1 As can be seen, the intermediate container 21 is arranged between the inner container 22 and a grid-shaped outer jacket 31 of the transport and storage container 20. The support base 23 is arranged to form the underframe 24, which in the present case is a frame pallet, on a plurality of center feet 27, 28 and corner feet 29, which are located on a common foot frame 30 are located. The support base 23 forms the connection between the outer shell 31 and the central feet 27, 28 and corner feet 29 such that a horizontal frame tube 53 arranged circumferentially at the lower edge of the outer shell 31 with the intermediate base 23 being arranged with the central feet 27, 28 and the corner feet 29 is screwed.

The support base 23 is therefore both part of the intermediate container 21 and part of the pallet-like underframe 24.

Referring to the 3 to 9 the manufacture and construction of the intermediate container 21 is explained in more detail below. Preferably, the in Fig. 4 Sheath jacket 25 shown produced from a cylinder jacket, which in a stretching process to the in Fig. 4 Shown angularly formed casing cover 25, which is adapted in its design to the shape of the inner container 22, is deformed, so that the casing cover 25 has, in particular, adapted to the vertical edges of the inner container forming edges 33.

For the connection between the casing 25 and the support base 23, the casing 25 is on a circumferentially formed lower connecting edge 32 with a particularly in Fig. 6 shown, provided on the outside welded shoulder 34. The welding shoulder 34 is inclined outwards with respect to side surfaces 35 of the casing 25 by a stop angle α, the stop angle α corresponding to a flank angle β, under which an outer wall flank 36 of a support surface 37 ( Fig. 3 ) of the support base 23 framing bottom wall 38 is inclined to the vertical.

How Fig. 6 shows, due to the above-described configuration of the connecting edge 32 of the casing 25, there is a welded contact area between the wall flank 36 and the welding shoulder 34, which enables the bottom wall 38 of the support base 23 to be welded to the connecting edge 32 of the casing 25. Preferably the welding is carried out by means of resistance welding, in which the wall flank 36 and the welding shoulder 34 are pressed against one another and welded to form a contact force, so that an in Fig. 5 shown container pot 39 is formed, which is used to form the in Fig. 1 illustrated intermediate container 21 is subsequently provided with the container lid 26.

Before arranging the container lid 26 on an opening edge 40 defining a container opening of the container pot 39, the manufacture of a container lid 26 and the inner container 22 in FIG Fig. 7 illustrated assembly unit 41. How Fig. 7 shows, the container lid 26 has a lid bottom 42 with an all-round lid edge 43. In the lid base 42 there are a lid opening 44, which is formed here centrally in the lid base 42, for the implementation of a filler neck 45 ( Fig. 1 and 11 ) and two receiving openings 46, each arranged adjacent to the lid edge 43, which each receive one on an upper side 47 ( Fig . 8th ) of the inner container 22 designed emptying nozzle 48 are used.

How Fig. 11 shows, the lid opening 44 is designed to carry out the filler neck 45 such that the filler neck 45 can be passed through this without contact to an opening edge 49 of the lid opening 44. In contrast, the receiving openings 46, as in particular in FIG Fig. 8 shown, a diameter D, which is smaller than the outer diameter d of the discharge nozzle 48, such that when the container lid 26 is placed on the top 47 of the inner container 22 to produce a contact between the lid bottom 42 and the top 47 of the inner container 22 Emptying spout 48 must be deformed in order to be passed through the receiving openings 46, so that a locking collar 50 formed on the emptying spout 48 latches behind a latching edge 51 which delimits the receiving openings 46 after passing through the receiving openings 46.

In order to carry out the joining process explained above, the drainage nozzles 48 can be drawn into the receiving openings 46, for example with a suitable claw tool, which engages behind a lower edge 52 of the drainage nozzles 48 projecting into the inner container 22 while overcoming the deformation resistance of the drainage nozzles 48.

The formed from the inner container 22 and the container lid 26 connected thereto, in Fig. 7 The assembly unit 41 shown can then be inserted into the container pot 39 from above, so that the lid edge 43, as in FIG Fig. 8 shown, rests on the opening edge 40 of the container pot 39 and a connection, for example by a screw 65 of the container lid 26 to the container pot 39, which is preferably carried out in corner areas 55 of the container lid 26, for producing a surrounding the inner container 22 on all sides, in Fig. 9 shown intermediate container 21 can be done.

How Fig. 10 explained, starting from the intermediate container 21 receiving the inner container 22, the assembly of the in Fig. 1 Transport and storage container 20 shown by subsequent connection of the support base 23 formed on the intermediate container 21 with the outer jacket 31 and the center feet 27, 28 and corner feet 29 arranged on the foot frame 30, such that the center feet 27, 28 and corner feet 29 with an intermediate arrangement of a Connecting edge 56 ( Fig. 3 ) of the support base 23 are screwed to the lower horizontal frame tube 53 of the outer jacket 31. Then, in the case of the exemplary embodiment shown, the outer shell 31 is stiffened on its upper horizontal frame tube 57 by crossbars 58 screwed to the frame tube 57 and arranged in bead-shaped depressions in the lid base 42.

How Fig. 1 shows, the emptying nozzle 48 are provided with sealing plugs 54, which are covered with sealing caps, not shown, made of metal, which are connected to the lid base 42, so that the drainage plugs 48 provided with the sealing plugs 54 are also provided with a protective cover.

How Fig. 11 shows, the filler neck 45 is covered with a cover cap 59 covering the cover opening 44, which covers a screw cap 60 for the immediate closure of the filler neck 45 and has a flange edge 64 which is provided with openings 61, which lead through fastening tabs arranged on the cover base 42 62 enable. The fastening tabs 62 are provided with through-openings 63 which, for example, enable tamper protection to be attached.

Claims (10)

1. A transportation and storage container (20) for liquids having an inner container (22) made of plastic, an outer jacket (31) preferably realized as a lattice made of metal as well as a pallet-like base frame (24) formed for being handled by means of forklifts or similar modes of transportation, and comprising a support base (23) made of sheet metal for supporting the inner container (22) provided with at least one filling neck (45) at an upper side (47) of the inner container (22), an intermediary container, which receives the inner container from all sides and is made of sheet metal, being arranged between the inner container (22) and the outer jacket (31), said intermediary container (21) comprising a jacket case (25), a container lid (26) connected to the jacket case (25) and a container bottom connected to the jacket case (25), the container bottom being formed by the support base (23) of the base frame (24)
   characterized in that
   the jacket case (25) is materially bonded to the support bottom (23) at the lower edge of the jacket case (25) formed as a connecting edge (32) so as to form the intermediary container (21) in such a manner that when the plastic inner container fails due to thermal overload, flammable liquid cannot get into the environment of the transportation and storage container from the inner container.
2. The transportation and storage container according to claim 1,
   characterized in that
   the container lid (26) comprises a lid cap (59) for covering the filling neck (45) passed through a lid opening (44).
3. The transportation and storage container according to claim 1 or 2,
   characterized in that
   the container lid (26) is detachably connected to the jacket case (25) of the intermediary container (21).
4. The transportation and storage container according to any one of the preceding claims,
   characterized in that
   the container lid (26) is connected to the jacket case (25) via screw connections (65).
5. The transportation and storage container according to any one of the preceding claims,
   characterized in that
   the inner container (22) comprises at least one discharge neck (48) formed independently from the filling neck (45) at the upper side (47) of the inner container (22), and the container lid (26) comprises a receiving opening (46) bounded by a locking edge (51) for passing the discharge neck (48) therethrough, the diameter D of the receiving opening (46) being smaller than the outer diameter d of a locking collar (50) formed at the discharge neck.
6. The transportation and storage container according to claim 5,
   characterized in that
   the inner container (22) comprises two discharge necks (48) at its upper side (47) and the container lid (26) comprises two receiving openings (46) allocated to the discharge necks (48) for passing the discharge necks (48) therethrough.
7. The transportation and storage container according to any of the preceding claims,
   characterized in that
   the jacket case (25) is connected to the support bottom (23) at its connecting edge (32) via a welded connection.
8. The transportation and storage container according to claim 7,
   characterized in that
   the jacket case (25) comprises an outwardly offset welded shoulder (34) formed circumferentially at the connecting edge (32) of the jacket case (25) for forming the welded connection, said welded shoulder (34) abutting at a rising outer wall flank (36) of a bottom wall (38) of the support bottom (23), said bottom wall (38) framing a support surface (37) for supporting the inner container (22).
9. The transportation and storage container according to claim 8,
   characterized in that
   the welded connection is realized as a resistance welding.
10. The transportation and storage container according to any one of the preceding claims,
    characterized in that
    the container lid (26) comprises a lid bottom (42) having a lid edge (43) formed circumferentially and protruding downward over the upper side (47) of the inner container (22), the cross-sectional contour of said lid edge (43) being adjusted to the cross-sectional contour of a circumferential upper edge of the inner container (22) at the transition from the upper side (47) to the lateral walls of the inner container.

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