FI58101C - CONTAINING TRANSPORT CONTAINER FOR A PREPARATION - Google Patents

Description

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Patent frc-idelat ^ (51) Kv.tk.Wci.3 B 65 D 90/08 // B 65 D 87/02 ENGLISH - Fi N LAN D (21) PiMnttlhtkwnu »—p * t« «iirt> knln | 507/73 (22) Hakvmlipilvi - An * öluilng »d« f 20.02.73 (FI) (23) AlkupUvi — GUtlghutsdtg 20.02.73 (41) Translator lulkMcsl - Blhrlt olfentllg 30.08.73

National Board of Patents and Registration / 44) NlhtMktipaiion |

Patent · och registerstyrelsen Amekan uthgd och utUkrtfun pubitcurad 29 08.80 _ (32) (33) (31) Pyydutqr utuollt «i * —Begirt prtorltet 29.02.72 3O.IO.72 Federal Republic of Germany-Förbunds-

Republic of Germany (DE) P 2209 ^ 8 ^ .H

p 2253235.0 (71) Westerwalder Eisenwerk Gerhard KG, 52 ^ 1 Weitefeld / Sieg, Federal Republic of Germany-Förbundsrepubliken Tyskland (DE) (72) Helmut Gerhard, Weitefeld / Sieg, Federal Republic of Germany-Förbundsrepubliken Tyskland (DE) (7) Leitz Oy (5I) Pressure-resistant transport container for liquid substances - Tryckbeständig transportcontainer för ämnen i vätskeform

The invention relates to a pressure-resistant container for the transport of liquid substances, comprising a liquid-tight container consisting of two end walls provided with corner reinforcements for lifting and stacking, and at least two intersecting sub-cylindrical shells forming separate longitudinal axes about separate longitudinal axes. , and longitudinal beams having a U-shaped cross-section resting against the outer walls of the container and connected to reinforcing elements inside the container, at least under tensile stress, wherein at least one of the flanges of each longitudinal beam is located approximately in the longitudinal section of the opposite outer wall wall.

In a transport container of this type, longitudinal beams are located on the longitudinal sides of the container approximately halfway up the tank height. These receive the external tensile compressive stresses acting in the longitudinal direction of the container, as well as the bending stresses generated especially during lifting. Instead, the internal overpressure which tends to propagate the container is resisted only by reinforcing elements arranged in the plane of the opposing cutting lines, which are primarily formed as at least one through-partition with individual openings. The partition wall can be welded directly to the interconnected outer sheath blocks or to rigid plates of suitable cross-sectional shape mounted for reinforcement. Although such partitions can be used to distribute the load very evenly, they cause the sale of a very large, corrosion-resistant plate and make it difficult to clean the tank.

The object of the invention is to manufacture a transport container in which a high pressure resistance is achieved at a reasonable cost and which enables easy cleaning by making the most of the space used within predetermined external dimensions.

According to the invention, this can be achieved in that the reinforcing elements, and in particular their flat ends, are arranged in said plane to pierce the intersecting lines of the outer wall parts and are fastened to flanges of longitudinal beams in the same plane.

The structure according to the invention achieves the following advantages: 1. The loads acting on the joints of the wall arches are partially received by the reinforcing elements acting as tension anchors.

2. Avoid extra cuts in the tank walls and additional joints caused by them at critical points.

3. The fastening elements are attached to the flanges of the U-profile beams outside the tank, whereby a) the welds can be easily monitored from the outside and are easily accessible.

b) Weld seams are not among the critical joints of the tank.

c) Corrosion-resistant material does not need to be selected as the longitudinal beams, as they do not come into contact with the inside of the tank.

Because the ends of the reinforcing elements bonded to the longitudinal beams are shaped flat, they can be easily attached by welding to the flanges of the longitudinal beams.

These ends can have different shapes and their shape can be chosen according to welding and strength technical aspects. Trapezoidal beveled ends of reinforcement elements have proven to be the best.

If it is preferable to keep the outer surface of the longitudinal beams smooth, the flanges of these can be notched and the ends of the reinforcing elements can be fixed by embedding.

3 58101

Reinforcement elements are, in their simplest form, individual sheet metal ribs. These can be stressed by a tensile load and give the tank the desired strength against internal overpressure.

If the reinforcing elements are to provide support to the longitudinal beams also with respect to external stresses on the container, they must have not only tensile strength but also compressive and buckling strength. To a certain extent, the buckling strength can be increased by making the reinforcing elements from helically twisted sheet metal ribs; these types of reinforcements also have the advantage that they require little space, allow easy cleaning and have a damping effect on the flow of liquid in the tank. The flexural strength of the container can be improved by making the reinforcing elements from "bars or tubes with flattened ends.

When the outer walls of the container consist of four blocks, it is advantageous to connect the intersecting support elements inside the container in pairs or to tie them to a pipe running along the longitudinal axis of the container.

The solutions according to the invention are described in more detail in the following text by means of the accompanying drawings. In the drawings:

Figure 1 is a perspective view of a first solution strip according to the invention ·

Figure 2 is a partial view of the modified solution model.

Figure 3 is a perspective view of the following solution model.

Figure 4 is a similar view of the following solution model.

Figures 5-8 are partial views of different designs of reinforcement elements.

Figure 9 is a partial view of the new solution model seen from below.

All solution models have two end walls 1 in the transport container, each of which consists of two horizontal crossbeams 2 and two vertical posts 3 · The joints of these are equipped with corner brackets 4 suitable for lifting and locking the transport container.

In the embodiment according to Figure 1, the closed perimeter formed by the transverse beams 2 and the posts 3 is divided into separate blocks by means of one or more (here two) stiffening rows (s) and fastened to these blocks wall elements in a cylindrical shape around the vertical bending axes. These wall elements, as well as the surrounding frame, form an integral part of the liquid container and, at least insofar as they come into contact with the contents of the container, are made of a raw material which is resistant to the chemical effects of the contents.

Wall sections 7 and 8 curved into the shape of a partial cylinder are rigidly welded to the crossbeams 2 and the posts 3, which are of the same width, with respect to the horizontal longitudinal axis. These wall blocks, together with the end walls already described, form the actual liquid tank.

They are interconnected by intersecting lines 9 where they meet each other.

By selecting the appropriate ratios for the radii of curvature and wall thicknesses of the outer and middle cylinder blocks, the shape of the container 5 58101 can be easily adapted in the most advantageous manner with respect to the desired width and height of the transport container.

Opposite intersecting lines of the middle and outer wall blocks are connected to each other by reinforcement elements. These reinforcing elements are made, for example, of sheet metal ribs, the ends 30 of which are guided in a liquid-tight manner through the cutting lines 9 outside them.

Above and below the middle wall blocks 8 are outer longitudinal beams 11 having a U-shaped cross-section, the vertically extending flanges 12 of which coincide with the plane of the stiffening elements 10, the flanges 12 are provided with notches 13 to which the ends 30 of the stiffening elements 10 fit. and with the respective intersecting lines with the container wall blocks 7 and 8. Depending on the desired length of the weld seam, the notches 13 and the corresponding ends 30 of the stiffening elements can be selected to be shorter or longer. Alternatively, the ends 30 of the reinforcing elements can also be simply welded onto the flanges 12 of the longitudinal beams 11 (cf. Fig. 4).

Depending on its respective length, the transport machine is provided with one or more reinforcing rims 14 which bind the upper and lower longitudinal beams 11 and possibly merge into saddles 15. They do not follow the arc of the wall blocks at their upper and lower end portions 29 but point directly to the longitudinal beams 11.

To leave space for the access opening 16 located at one end of the container, the upper longitudinal beam 11 joins the end wall directly only at the other end of the transport container. At the end of the passage side, the longitudinal beam 11 forms a shoulder 17 from which the oblique supports 18 extend into the corners of the end wall 1. The space between the beam shoulder 17, the supports 18 and the cross beam 2 of the end wall 1 can be formed as a support frame 19,

Corner supports can also be derived from other corners of the end wall to the central longitudinal beam to compensate for the stresses exerted by the acceleration and braking forces on the corner fittings. For example, these supports may be made of rectangular beams 18 as in Figure 1 or triangular reinforcement plates 20 as in Figure 2. Furthermore, they may terminate inside corner fittings as in Figure 1 or fully join corner fittings such as corner reinforcements 20 in Figure 2.

6 58101

The emptying devices can be placed in the middle of the second end wall in a known manner. But they can also be placed on the side behind the corner fitting as schematically shown in Fig. 2 in Fig. 2.

The solution model shown in Figure 3 does not differ from that of Figures 1 and 2 in terms of the frame structure of the end wall. In this case, however, only two horizontal wall blocks 22 and 23 »have been used, which are welded to each other to fasten the reinforcing elements 10 following the upper and lower section lines 24. The ends 30 of the reinforcing elements introduced outside the container are located in the corresponding notches of the second flanges 26 of the U-shaped upper and lower longitudinal beams 27. The longitudinal beams 27 are displaced laterally slightly outside the center line with respect to each other; their other narrower flanged sides 28 are welded end-to-end to the respective outer wall blocks 22 and 23. This asymmetrical structure is of particular interest in the case of high tank heights.

Two spherical wall elements 55 are arranged here in the rectangular end wall frames. Their vertical running line 56 either forms a simple weld seam as in Fig. 3 or is supported as in Fig. 1 by a straight or curved reinforcement 5. This spherical design has the advantage of being lighter than in Fig. 1 .

Diagonal supports are omitted in the solution presented here. Otherwise, the structure of the tank, including the various conversion possibilities, corresponds to the solutions according to Figures 1 and 2.

The transport container according to Figure 4 has two end walls with a square outline.

In each of the closed frames formed of the transverse beams 2 and the posts 3, a spherically curved base 35 is placed in a liquid-tight manner. Four cross-cylindrical sheaths are wound end-to-end on the crossbeams 2 and the posts 3 having the same width. These jackets, together with the end walls already described, form the actual liquid tank. They are connected to each other on lines 37, where they meet each other. The sheaths are formed symmetrically »and thus all have the same radius of curvature. Thus, a cross-section resembling the shape of a four-branched clover leaf is created. For this reason, the square-shaped frame cross-section is utilized as accurately as possible.

The opposing intersecting lines 37 of each facing sheath are connected to each other by horizontal and vertical reinforcing elements 38 and 39. · In the solution according to Fig. 4, these reinforcing elements are again made of straight sheet metal grooves, the ends 40 of which are fluid-tightly guided outside the cutting lines 37.

- A second flange 41 of a U-shaped beam 42 with flanges of different widths runs along each cutting line 37. A second narrower flange 28 of this longitudinal beam corresponds to an adjacent cylinder shell 36 and is connected to it by welding. The protruding ends 40 of the reinforcing elements 38 and 39 are welded to the flanges 41. In order to obtain the most advantageous stress distribution, the ends 40 are chamfered into a trapezoidal shape.

The horizontal and vertical reinforcement elements 38 and 39 are connected to each other inside the container. The individual reinforcement elements are connected to each other at their intersection point by means of triangular plates 43 or inside the container there is a longitudinally extending central tube 34 (Fig. 5) »to which the individual traction elements are connected.

If necessary, to further increase the compressive strength, straight or edge-angled stiffening plates 44 may be attached to the longitudinal beams 42, the sides of which extending beyond the wider flange 41 are bonded to cylinder liners 36. Similar stiffening plates may also be used in the shipping container shown.

The transport container is conventionally provided with a passage opening 45, an air equalization duct 46 and, firstly, a filling and emptying device with a transverse chute and pipe located in the vicinity of the lower corner of the tank, which is not described in more detail in the drawing.

Under the action of two longitudinal beams 42 placed opposite each other and connected to each other by means of reinforcement elements 38 and 39, the transport container has a certain strength against external pressure, since said parts together with the associated wall area act like a double T-beam. This beam effect can be increased by almost 581 01 s to the desired size by dimensioning the stiffening plates 44 accordingly.

In order to increase the buckling strength of the reinforcing elements 38 and 39, these can be made of sheet metal twisted in the shape of a screw. Figure 6 shows such a screw-shaped reinforcing element 50. The torsion of the ends with respect to each other should be 180 ° or a multiple thereof, so that the ends are again in the planes of the cutting line 37 (Figure 4) and can be welded to the flanges 41 of the longitudinal beams 42. a liquid jet on both surfaces of the reinforcement elements in all four wings. The cleaning fluid flows and rises, following the descents and rotation, also to the opposite side of the jet head controlling the liquid jet.

The resistance moment and buckling load of the described reinforcement elements are higher than with a simple flat steel cross-section. The screw thread still has a much greater damping effect than the flat steel cross-section.

Reinforcement elements can also be made of pipes or rods to improve their bending and buckling strength. In order for their ends to be led out from inside the container in the plane of the joint seams, they are preferably flattened. This can be implemented particularly simply in a tube. Thus, Figures 7 and 8 show tubular reinforcement elements. They are flattened at their ends at 51. Alternative solutions are, for example, round tubes 52 (Fig. 7) or oval flattened tubes 53 and 54 (Fig. 8). Understandably, such reinforcement elements with higher buckling and compressive strength can also be used in the transport containers according to Figures 1-3.

Figure 9 shows a bottom view of a transport container which can be manufactured in accordance with one of the described solution models. The lower longitudinal beam 27 is provided with a horizontal base plate 61 which, together with the corner steels 62 attached to its right and left edges from its flanges, forms a longitudinally tunnel 64, the width and depth of which correspond to the dimensioning grooves of the truck.

All the features described and illustrated in the various solution models can be exchanged or combined with one another in a desired manner suitable for the solution within the scope of the claims.

Claims (9)

1. Pressure-resistant transport container for substances in liquid form with a liquid-tight container consisting of two end walls equipped with corner fittings for lifting and stacking and at least two intersecting partial cylindrical sheaths, which form around separate longitudinal shaft outer wall and cylindrical curvature curves. longitudinal beams having a U-shaped intersection and which are joined to the at least tensile load-bearing supporting elements within the container, the at least one of the flanges of each of the longitudinal beams being substantially in the plane with the two opposite sides of the outer wall portions extending in the longitudinal direction of the container, that the reinforcing elements (10, 38, 39, 52, 53, 54) and in particular their flattened ends (30, 40, 51) in said pane are arranged to pass through the intersecting lines of the outer walls and are fixed to the flanges (12, 12, 42). 41) in the same piano. Transport container according to claim 1, characterized in that the ends (40) of the reinforcing elements (38) are welded at the sides of the longitudinal beam flanges. Transport container according to claim 2, characterized in that the ends (40) of the reinforcing elements are cut to the shape of a parallelogram. Transport container according to claim 1, characterized