JP5311520B2 - Pressure vessel for shipping container - Google Patents

Abstract

The present invention concerns a pressure container (1) with a jacket comprising partial cylindrical jacket shells (2, 4) that are located parallel next to each other and define a bead (8, 10) in the longitudinal direction. The end faces thereof are closed off by a curved bottom (16, 18), wherein between the partial cylindrical shells (2, 4) a tractive element designed in particular as a flat wall (6; 6a, 6b) is arranged, the upper or lower edge (12, 14) of which extends into or penetrates the upper or lower bead region (8, 10). There is furthermore provided a shell element (42) running in the longitudinal direction and connecting the jacket shells (2, 4) and the tractive element (6), being firmly connected at least in sections to the jacket shells (2, 4) and to the particularly beveled edge (12, 12a; 14, 14a) of the tractive element (6), so that a girder structure is formed in the bead region (8, 10). The invention further relates to a transport container arrangement, particularly a tank container unit (100) having a pressure container (1) according to the invention.

Description

The present invention relates to a pressure vessel comprising a jacket shell having a C-shaped cross-section, which is arranged in parallel and forms a bead region in the longitudinal direction, the jacket being closed at the end by a curved bottom member. There is known a pressure vessel including a jacket shell having a cross-sectional shape similar to an octagon (see Patent Documents 1 to 4). The pressure vessel is a transport container for a road vehicle such as a tank semi-trailer or a tank that requires a container that ensures a high compressive strength while effectively reducing the weight of the material by using a structural space with a small height dimension. Suitable for containers.

  The maximum compressive strength is given by a circular cross section, and it is inappropriate to use a rectangular cross section of the structural space with horizontal long sides. The cross-section of the structural space with a small height dimension is filled with several parallel cylindrical pressure vessels (FIG. 10). Such a structure causes a large loss of space. Box, oval (Fig. 11) or oval (Fig. 12) cross sections do not provide the necessary compressive strength.

German Patent Application Publication No. 3606247 German Patent Application Publication No. 3125963 German Patent Application Publication No. 2951554 European Patent No. 10673326

  For this reason, a pressure vessel according to the present invention has been developed. The pressure vessel has advantages over a perfectly cylindrical pressure vessel with respect to space utilization, and with respect to pressure engineering over a box or oval cross section. The cross section is used in petroleum products, but space cannot be used effectively. Particularly for long pressure vessels, it is useful and required to provide a tension member between the generally cylindrical shells to join the beads from a pressure engineering point of view. In this case, it is easy to manufacture a flat wall-like tensile member that enters or penetrates the upper or lower bead region (see Patent Document 4). The shells are adjacent to each other, touch the wall, and are bonded or welded to the wall.

  From the standpoint of space utilization and / or compressive strength, it is an object to improve a pressure vessel comprising a jacket having a substantially cylindrical jacket shell.

  This problem is solved by the pressure vessel according to the present invention. The pressure vessel includes a shell member that connects the jacket shell and the tension member. The shell member closes the bead region as a roof member in the top portion and a floor member in the base portion, and forms a beam structure in the crotch region together with the roof member and the floor member or the bead region. The beam structure reinforces internal and external compressive loads and rollover loads.

  For containers for storing dangerous goods that do not have special structural features, such as capture containers, a double jacket is required.

  The shape stability of the shell member is enhanced by a camber (here, meaning a cylindrical or prismatic camber with respect to the longitudinal axis) or an edge portion.

  The area formed by the different open contours of the warped floor and the jacket (the jacket shell) is closed by a spandrel perpendicular and flat to the longitudinal axis of the tank.

  Stability is increased when the spandrel is bonded to the end of the tension member.

  From a pressure engineering and production engineering point of view, the spandrel has an outer contour region extending along the inner contour of the bottom member, i.e., the spandrel can be inserted into the bottom member and from the bead region. It has an inner contour region that penetrates into the interior of the pressure vessel, and has an advantage when the contour of the end of the jacket shell extends along the contact surface of the spandrel. The jacket consisting of the jacket shell is always clearly defined by the end face of the jacket in contact with the open end of the bottom member, and the corresponding spandrel has an edge without requiring additional adjustment or cutting operations Are on the same plane. The outer contour region and the inner contour region intersect at an acute angle at a top portion and a base portion of the jacket shell, reinforce the top portion and the base portion with respect to pressure engineering, and an internal pressure of the pressure vessel. To absorb the peak stress generated in the top portion and the base portion.

  In another embodiment, the reinforcing effect is enhanced, and the peak stress is absorbed by a rib-like extension provided at the end of the spandrel. The extended portion extends along the common contour of the bottom member and the jacket shell beyond the top portion or the base portion where the peak stress occurs.

  The jacket shell has peripheral portions with different curvatures. Each of the upper bead region and the lower bead region has a curvature smaller than the curvature of the peripheral portion connecting the top portion and the base portion of the jacket shell and forming the side waist region of the pressure vessel. That is, it has a radius of curvature larger than the radius of curvature of the peripheral edge. For this reason, the thickness of the bead formed at the seam of the jacket shell extending in the longitudinal direction can be reduced, and the effective volume of the pressure vessel can be increased without substantially reducing the compressive strength. it can. In addition, since the difference between the open cross section of the bottom member and the cross section of the jacket is small, it is easy to attach the bottom member having an opening surrounding a smaller bead region.

  The curvature of the upper bead region and the curvature of the lower bead region may be different. That is, the thickness of the lower bead is different from the thickness of the upper bead. A larger curvature (smaller radius of curvature) results in a thicker bead and a smaller curvature (larger radius of curvature) results in a thinner bead. The thin bead in the lower bead region serves, for example, to empty the adjacent base portions of the individual jacket shells without causing the rest. On the other hand, a thick bead provides a higher shape stability of the pressure vessel in the region of the bead, said pressure vessel being along a tank base such as a semi-trailer length girder or hook lift device loading skid. Supported by an extending beam.

  The said pressure vessel shall have a different thickness for every peripheral part.

  The transport container according to the present invention includes the pressure vessel.

  The following drawings show an embodiment of the present invention.

The perspective view of the pressure vessel which concerns on this invention. Sectional drawing of the pressure vessel in line AA of FIG. Sectional drawing of the pressure vessel in line BB of FIG. The perspective view of the pressure vessel shown in FIG. 1 with the bottom member omitted. The perspective view of the pressure vessel shown in FIG. 4 which does not have a spandrel. The perspective view of an intermediate wall provided with the inclined spandrel. The figure which shows the spandrel which has two shapes. Schematic which shows the other cross-sectional shape of a tank member . Schematic which shows the other cross-sectional shape of a tank member . The figure which shows a tank container unit provided with the pressure vessel which concerns on this invention. The figure which shows the conventional pressure vessel which has two cylindrical cross-sectional shapes. The figure which shows the conventional pressure vessel which has a cross-sectional shape of an ellipse (left half) and a box shape (right half). The figure which shows the conventional pressure vessel which has an oval cross-sectional shape.

As shown in FIGS. 1 to 5, the pressure vessel 1 has two jacket shells 2, 4 each having a C-shaped cross-sectional shape, each welded longitudinally to a tension member which is a flat wall 6. Provide (FIGS. 2 and 5). The wall 6 has the same length as the jacket shells 2, 4.

  Each jacket shell 2, 4 has peripheral portions 2a, 2b, 2c, 4a, 4b, 4c having different curvatures. The peripheral edge portions 2 a and 4 a extend from the joining position with the wall 6 to the top line 7 of the jacket shells 2 and 4. The peripheral portions 2 b and 4 b extend from the top line 7 to the base line 9 of the jacket shells 2 and 4, and the peripheral portions 2 c and 4 c extend from the base line 9 to the wall 6. The peripheral portions 2b and 4b have a curvature radius of 600 mm to 1300 mm in the body region, and the upper peripheral portions 2a and 4a and the lower peripheral portions 2c and 4c have a curvature radius of 600 mm to 1300 mm, respectively.

  Such a radius of curvature range is used for tank containers or tank trucks having a maximum width of 2600 mm. For other dimensions, different radius of curvature ranges and relationships can be used that are suitable for the actual outer diameter dimensions of the tank container or tank car (railway, truck).

  The peripheral portions 2 a and 4 a form the upper bead region 8, and the peripheral portions 2 c and 4 c form the lower bead region 10. The upper edge 12 and the lower edge 14 of the wall 6 protrude into the upper bead region 8 and the lower bead region 10, respectively. The lower edge portion 14 is at the same position as the surface formed by the base line 9 of the jacket shells 2 and 4, and the upper edge portion 12 exceeds the surface formed by the top line 7 of the jacket shells 2 and 4. Each of the upper edge portion 12 and the lower edge portion 14 has fixing chamfered portions 12a and 14a. The wall 6 has an opening 50 reinforced by a collar 52.

  Each end of the jacket shells 2 and 4 is closed by curved bottom members 16 and 18 (FIGS. 1 and 3), and the bottom members 16 and 18 are containerd by end rings 20 attached to the bottom members. It can be inserted into the frame 22 (FIGS. 1 and 9).

  In order to compensate and close the cross-sectional difference between the bead regions 8 and 10 and the oval bottom member, the spandrels 24 and 26, which are flat metal plates, are disposed between the bead regions 8 and 10 and the oval bottom member. It is arranged perpendicular to the length direction. The lower spandrel 26 has an outer contour region 28 (FIG. 4), which is the two baselines of the jacket shells 2, 4 along the straight inner contour of the curved bottom members 16, 18. It stretches between 9. The inner contour region 30 is inward of the contours of the peripheral edges 2 c and 4 c forming the bead region 10. The outer contour region 28 and the inner contour region 30 intersect at an acute angle at the end portion 32 in the base portion (baseline 9).

  In the upper spandrel 24, the outer contour region 34 extends along the straight inner contour of the curved bottom members 16, 18 through the vicinity of the inner contour region 36 to the end 38, similar to the lower spandrel 26. Ending with the top part (top line 7). The lower spandrel 26 is completely inward of the contour of the bottom member, whereas the outer contour region 34 of the upper spandrel 24 protrudes from the contour of the bottom member and is at approximately the same height as the chamfered portion 12a. It is outside the contour of the bottom member.

  FIG. 6 shows an embodiment (tank shells 2, 4 are not shown) provided with spandrels 24 a, 26 a that cross the pressure vessel 1 and are inclined with respect to the length direction. This structure makes it possible to shorten the wall 6 functioning as the tension member and to reduce the material and weight. The outer contour region of the upper spandrel 24a protruding from the tank is chamfered and joined (welded) to the chamfered portion 12a and the end 12 of the wall 6.

  The jacket shells 2 and 4 are provided with openings 40 into which typical container ports such as manholes, water inlets, vent holes and safety valve ports are inserted (FIG. 4).

  An additional shell member 42 is provided at the top of the pressure vessel, the side 44 of the shell member being welded to the top of the jacket shells 2, 4 and the end 46 of the shell member 42 being the upper spandrel. 24 is welded. An edge portion 47 at the center of the shell member 42 is in contact with the chamfered portion 12 a and is fixed to the chamfered portion by a plug weld 48. In this way, the upper edge portion 12 of the wall 6 having the peripheral edge portions 2a, 4a and the chamfered portion 12a and the shell member 42 constitute the longitudinal girder unit for reinforcement. The end of the girder unit is closed by an upper spandrel 24, thereby being reinforced.

  The jacket shells 2 and 4 are surrounded by a double jacket 5 in the examples shown in FIGS. The double jacket 5 ends at the top of the pressure vessel 1 (almost the highest filling level) and completely covers the base parts 2b, 4c and completely covers the lower bead area 10 between the two base lines 9. ing. The double jacket 5 prevents the product from leaking when the jacket shells 2, 4 are damaged. The double jacket 5 may be reinforced by an additional outer bottom member (not shown), which forms a double jacket in the region of the bottom members 16, 18. In the base portion of the pressure vessel 1, the double jacket 5 may be fixed to the chamfered portion 14a of the lower edge portion 14 of the wall 6 by plug welding for reinforcement. The intermediate portion (for example, a double metal plate) inserted into the base portion outside the jacket shells 2 and 4 is similarly fixed to the base portion, and a reinforcing beam member is provided in the lower bead region 10. May be.

  In FIG. 5, the double jacket 5 is omitted. Although not shown, a flat, curved or inclined shell member may be disposed in the lower bead region 10 to form a girder structure similar to the upper shell member 42.

  The end portions 32 and 38 of the spandrels 24 and 26 are located in the top portion or the base portion of the jacket shells 2 and 4, and the transitional portion where the linear peripheral edge of the bottom members 16 and 18 transitions to the curved peripheral edge. Configure. This is particularly important from a pressure engineering perspective. In order to reduce the peak stress generated in the transition portion under internal pressure, in the example shown in FIG. 7, the rib-like extension portions 132 a and 132 b have the common contour of the bottom members 16 and 18 and the jacket shells 2 and 4. Along the top line 7 along.

  In the structure a (left side), the spandrel 24 is large as a whole, and the extended portion 132a protrudes from the left top line 7. In the structure b (right side), only one cover strap 132b extends beyond the top line 7.

  In the example shown in FIG. 8, the cylindrical jacket region and the wall 6 surrounding the jacket shells 2, 4 are made from one (structure A) or two (structure B) parts. The flat areas 6, 6a, 6b of the part have edges 102, 104 in contact with the curved jacket shells 2, 4 and the ends of the jacket shells 2, 4 are welded to the edges 102, 104. . The two-part structure B comprises two shell members 2, 4 each having one flat region 6a, 6b. In this structure, the end of the jacket shell is welded to the edges 102, 104 and the flat regions 6a, 6b are welded together in the length direction of the pressure vessel.

  Not only does the jacket shell have its own radius of curvature, the peripheral edge may have a different thickness (not shown). With this structure, a generally high compressive stress for a large radius of curvature can be made uniform. Such a stress-optimized structure allows for light weight and increased compressive load.

  In a pressure vessel having a double jacket 5, the outer jacket 5 can be used as a structural member that absorbs the compressive load. This presupposes a force-transmitting connection between the inner and outer containers. The coupling is provided between, for example, an inner wall and an outer wall, and a support girder (not shown) that enables a point-like or linear force transmission between the inner wall and the outer wall. )). An extra node sheet (not shown) for the coupling can be provided in a particularly fragile position that effectively transmits the peak load generated on the inner wall to the outer wall.

  FIG. 9 shows the pressure vessel 1 in the tank container unit 100. The pressure vessel 1 is coupled to the tank container unit 100 by an end ring 20. The tank container unit 100 is suitable for a hook lift, includes a load skid 101, a machine room 102, and a foldable rail unit 103, and can be used as a self-sufficient supply unit.

  Other variations and constructions of the invention will be apparent to the person skilled in the art from the claims.

DESCRIPTION OF SYMBOLS 1 Pressure vessel 2, 4 Jacket shell 2a, 2b, 2c, 4a, 4b, 4c Peripheral part 6 Wall 7 Top part (top line)
8, 10 Bead area 9 Base part (baseline)
12 Upper edge portion 14 Lower edge portion 16, 18 Bottom member 24, 26, 24a, 26a Spandrel 28, 34 Outer contour region 30, 36 Inner contour region 32, 38 End portion 42 Shell member 47 Edge portion 132a, 132b Extension portion 100 Tank container unit

Claims (10)

A bottom member (16, 18) which is composed of jacket shells (2, 4) having a C-shaped cross-section , which are arranged in parallel and form a bead region (8, 10) in the lengthwise direction, and whose ends are curved A pressure vessel comprising a jacket closed by
A tension member which is a flat wall (6, 6a, 6b) is disposed between the jacket shells, and the upper edge (12) or the lower edge (14) of the tension member extends into the bead region or A shell member (42) extending through the bead region and extending in the length direction and connecting the jacket shell and the tension member is formed so that a girder structure is formed in the bead region. A pressure vessel fixed to the chamfered edges (12, 12a, 14, 14a) of the member.   The pressure vessel according to claim 1, wherein the shell member surrounds at least a part of the jacket and is a part of an outer jacket fixed to the jacket.   The pressure vessel according to claim 1 or 2, wherein the shell member has a camber or edge portion (47) extending in the length direction.   The open contour of the bottom member has a shape different from the shape of the jacket shell in the bead region, and the bead region is closed by a spandrel (24, 26) that is perpendicular to the longitudinal axis and flat. The pressure vessel according to claim 2 or 3, wherein   The pressure vessel according to claim 4, wherein the spandrel is fixed to an end portion of the tension member and the shell member.   The spandrel includes an outer contour region (28, 34) extending along an inner contour of the bottom member in the bead region, and an inner contour region (30, 36) inward of the contour of the jacket shell in the bead region. The outer contour region and the inner contour region intersect at an acute angle at the ends (32, 38) in the top portion (7) and the base portion (9). Or the pressure vessel of 5.   The end of the spandrel has a rib-like extension (132a, 132b) that extends beyond the top and base along a common contour of the bottom member and jacket shell. The pressure vessel according to any one of claims 4 to 6. At least one of the jacket shells has one peripheral edge (2a, 2c, 4a, 4c) in each of the upper bead region and the lower bead region, and one peripheral edge between the top portion and the base portion. Part (2b, 4b), and the curvature of the peripheral part between the top part and the base part is larger than the curvature of the peripheral part in the bead region or the curvature of the peripheral part in the upper bead region is the lower part The pressure vessel according to any one of claims 1 to 7, wherein the pressure vessel is different from a curvature of a peripheral edge in the bead region. The peripheral portion has different thicknesses, the pressure vessel according to claim 8.   A tank container unit comprising the pressure vessel according to any one of claims 1 to 9.

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