RU2245286C9 - Container tank - Google Patents

Abstract

FIELD: containers for storage or transportation of liquids or gases, particularly for rail-road, motor or water transport.

SUBSTANCE: container tank comprises cylindrical case 1 having rectangular end frames 3. Frames are connected with cylindrical or conical panels 4 arranged in pairs from both case sides, which are opposite one to another relative vertical axis of tank symmetry. Panels are secured to posts and to end frame cantilevers in points of their intersection with areas of flat walls connection with rounded ribs of posts and cantilevers. Panels may extend towards container tank. Arranged on outer surface of any panel is at least one cylindrical or conical concentric shell 5 located concentric to panel. Shells are hollow or have inner stiffening ribs. Shells are secured to panel by longitudinal ends thereof and connected to container tank and to end frames by transversal ends. Two or more shells abut each other or spaced one from another.

EFFECT: increased operational reliability.

3 cl, 6 dwg

Description

FIELD OF TECHNOLOGY

The invention relates to containers for storage and transportation of liquids and gases and can be used in rail, road and water transport.

BACKGROUND OF THE INVENTION

During transportation, the inertial forces act on the container tank from longitudinal acceleration (4g), acceleration in the transverse direction (2g) and acceleration in the vertical direction (1g up and 2g down).

These loads cause a dangerous concentration of stresses in the elements of the tank container. Their redistribution is provided by transitional unloading elements of the shell type, which directly connect the tank to the end frames.

In order to avoid the destruction of the tank and the end frames, transition elements of this type are made either with an unjustifiably large margin of safety in the form of a thick-walled closed ring, and therefore, excessively massive (RU patent No. 2072956, class B 65 D 88/12, publ. 10.02.97; RU patent No. 2143992, class B 65 D 88/12, publ. 10.01.2000), or make them less massive and provide reinforcing parts (stiffeners) that cannot fundamentally change the stress state of the container as a whole (SU patent No. 1237077 , CL B 65 D 88/12, publ. 06/07/86; GB application No. 2330170, cl. 65 D 88/12, publ. 06/17/98), lib about perform them in the form of an open ring of separate, not equipped with additional unloading parts, parts that are not able to exclude stress concentration even in the places of their attachment to the tank and end frames (US patent No. 5083673, nats. CL. 220-1.5, MKI B 65 D 88/12, publ. 28.01.92).

Closest to the claimed one is the solution described in GB application No. 2330170, concerning the supply of transition elements with means of unloading the zones of concentration of stresses arising in them, in the end frames and the tank under the influence of loads only from acceleration in the vertical direction.

Known means do not take into account the concentration of stresses arising in the indicated elements of the container when exposed to inertia from accelerations in the longitudinal and transverse directions.

The tank container according to GB application No. 2330170 is selected as the closest analogue (prototype).

SUMMARY OF THE INVENTION

The technical problem to which the invention is directed is the development of a strong and durable construction of the tank container.

The technical problem is solved by unloading the zones of stress concentration arising in the transition elements, end frames and the tank under the influence of all types of operational loads.

The technical result that can be obtained by using the invention is to increase the operational reliability of the tank container.

To solve this problem, in a tank container containing a cylindrical tank with bottoms having horizontal and vertical axis of symmetry, two rectangular end frames, each consisting of a hollow, box-shaped section, having ribs and walls of the struts, lower and upper crossbars, as well as lower and upper jibs, load gripping fittings connecting at the corners of the strut and cross-members of the end frames, elements for attaching the tank to the end frames, including at least cylindrical or conical transition elements, located on each side of the tank, each fastened with the ends of one side of the tank and the ends of the other with the sides of the struts and legs of the corresponding end frame facing the bottom of the tank, and means for unloading the stress concentration zones arising in its transition elements, end frames and tank when exposed operating loads located on the outer surfaces of these transition elements, according to the invention, each means of unloading the zones of stress concentration arising in its transition elements, then the front frames and the tank under the influence of operational loads, made in the form of a cylindrical or conical concentric with respect to the corresponding transition element, the shell with transverse and longitudinal ends, the ribs of each of the racks, crossbars or jibs of any of the end frames are rounded, conjugated with the corresponding flat walls along the boundaries of the interface, the transition elements are made in the form of four separate panels located on each side of the tank, two opposite each other with respect to the vertical axis of symmetry of the tank, the shape of the end face fastened to the stand and the lower jib of each panel is defined by an arc of a circle lying between the points of its intersection with the interface between the rib and the flat wall on the rack and the lower jib, and the radius R of the circle corresponding to the radius of the panel, selected from the ratio

0.9≤2R / H≤0.95,

where H is the standard width of the end frame,

the shells are located below the horizontal axis of symmetry of the tank, at least one on each of the panels and each is fixed with its longitudinal ends on the corresponding panel, the transverse end of one side on the bottom of the tank, and the end of the other side on the lower jib of the corresponding end frame moreover, the shells on one panel are arranged in two or more, and, with respect to each other, end-to-end or with a gap, and at least one shell is made with longitudinal and / or transverse internal stiffeners.

Distinctive features of the prototype features of the inventive tank container are the following features:

- the implementation of each means of unloading the zones of stress concentration arising in the transition elements, end frames and the tank when exposed to operational loads, in the form of a cylindrical or conical, concentric with respect to the corresponding transition element, shell with transverse and longitudinal ends;

- the implementation of the ribs of each of the racks, crossbars or jibs of any of the end frames rounded, mated with the corresponding flat walls along the boundaries of the interface;

- the implementation of the transition elements in the form of four separate panels located on each side of the tank in two, opposite one another relative to the vertical axis of symmetry of the tank;

- determining the shape of the end face of each of the above panels, fastened to the stand and the lower jib, through an arc of a circle of radius R lying between the points of intersection with the edges of the rib with a flat wall on the rack and the lower jib;

- the choice of the radius R of the said circle corresponding to the radius of the panel, from the ratio of 0.9≤2R / H≤0.95, where H is the standard width of the end frame;

- the location of the shells below the horizontal axis of symmetry of the tank, at least one on each of the panels;

- fixing each shell with its longitudinal ends on the corresponding panel, the transverse end of one side on the bottom of the tank, and the end of the other side on the lower jib of the corresponding end frame;

- the location of the shells on one panel in two or more, and with respect to each other - butt or with a gap;

- the implementation of at least one shell with longitudinal and / or transverse internal stiffeners.

These distinctive features, each individually and all together, are aimed at solving the problem and are significant.

Using the combination of these features in the prior art, analogues and prototype is not found.

A single set of new essential features with common known allows you to solve the problem.

Compared with the closest analogue (prototype), the inventive container tank possesses increased operational reliability due to the additional unloading of zones of excessive stresses arising in its panels as transition elements, racks and slopes of the end frames and tank bottoms due to the redistribution of forces acting on the container.

The unloading of these zones was achieved through the use of new unloading means - cylindrical or conical shells, the special design of transition elements - in the form of panels of a certain shape, and also due to the optimal placement of shells on the panels and panels in relation to the tank and end frames.

Depending on the type of cargo transported and the operating conditions of the tank container, one, two or more shells are placed on one panel. The number of shells placed on one panel, and their relative position relative to each other is determined by calculation. The location of the shells on the panel is also determined by calculation. Shells provide the necessary rigidity and strength of the panels when exposed to the container of the entire set of operational loads. They also contribute to a more even distribution of forces in other structural elements of the tank container, such as struts or beams connecting the end frames.

The claimed technical solution is valid for tank containers of both beam and frame construction.

Thus, the proposed solution provides a redistribution of forces in the tank container, reduces stress in it and, thereby, increases its reliability.

The invention is illustrated by drawings.

Figure 1 (a, b) shows a container tank, a General view. Figa corresponds to the beam, Figb - frame structure of the container. Figure 2 is a view of A ₁ -A ₁ in Figure 1 on the end frame of the container from the side of the tank. In Fig.3 shows a section B ₁ -B ₁ in Fig.2 rack end frame. Figure 4 (a, b) is given a view of B ₁ in Figure 2 of the embodiments of the transition panels. Figure 5 presents a variant of the placement of the shells used as a means of unloading, Figure 6 is an embodiment of the shell with internal stiffening ribs.

The tank container contains a cylindrical tank 1 with bottoms 2 having a horizontal O ₁ and vertical O ₂ axis of symmetry, two end rectangular frames 3, fastening elements of the tank 1 to the end frames 3, including four cylindrical panels 4 as transition elements, and cylindrical shells 5 as a means of unloading the zones of stress concentration arising in the panels 4 when exposed to operational loads (Fig.1, 2).

Each rectangular end frame 3 contains two crossbars 6 (upper and lower) and two struts 7, interconnected at the corners of the load gripping fittings 8, and over the spans - with jibs 9 (Figure 2). The cross-members 6, struts 7 and jibs 9 have flat walls 10 and rounded ribs 13 conjugated with them along the mating borders 11 and 12.

The adapter panels 4 are located two on each side of the tank 1 so that they are opposite to each other relative to the axis O ₂ . Each panel 4 has ends 14 and 15 (FIG. 4) and is fastened at one end to the tank 1, the other to the rack 7 and the jib 9 of the corresponding end frame 3, while with the rack 7 and the jib 9 it is fastened by its end 14 (FIG. 2). The shape of the end face 14 is defined by an arc of a circle of radius R lying between the point A of the intersection of the specified circle with the interface 11 of the interface of the rib 13 with the flat wall 10 on the side of the strut 7 facing the tank and the point B of the intersection of the same circle with the interface 11 of the interface of the rib 13 with the wall 10 mowing 9.

The radius R of the circle corresponds to the radius of the panel 4 and is selected from a ratio of 0.9≤2R / H≤0.95, where H is the standard width of the end frame.

The panel 4 can be made expanding towards the tank (Figure 4 (a, b)).

Each shell 5 has a transverse 16 and longitudinal 17 ends. The shell 5 is concentric with the panel 4 and is placed on it below the horizontal axis O _{1 of} symmetry of the tank.

Two or more shells 5 can be located on one panel 4, which are end-to-end or with a gap relative to each other, and at least one shell 5 can have internal stiffeners. Figure 5 shows a variant of placement on the panel 4 of two shells 5 with a gap in relation to each other. Figure 6 shows an embodiment of the shell 5 with longitudinal and transverse internal stiffening ribs. Both of these particular cases of the invention provide the achievement of the claimed technical result in accordance with the task.

INDUSTRIAL APPLICABILITY

The container tank of the claimed construction is made in an industrial environment using standard equipment.

Claims (3)

1. A tank container containing a cylindrical tank with bottoms having a horizontal and vertical axis of symmetry, two rectangular end frames, each consisting of a hollow, box-shaped section, having ribs and walls of the uprights, lower and upper crossbars, as well as lower and upper jibs, load gripping fittings connecting at the corners of the strut and cross-members of the end frames, elements for attaching the tank to the end frames, including at least cylindrical or conical transition elements located on each side of the tank, each captured by the ends of one side with the tank, and the ends of the other with the sides of the racks and legs of the corresponding end frame facing the bottom of the tank, and means for unloading the stress concentration zones arising in its transition elements, end frames and tank under operating loads, located on the outside the surfaces of these transition elements, characterized in that each means of unloading the zones of stress concentration arising in its transition elements, end frames and the tank when Under operational loads, it is made in the form of a cylindrical or conical, concentric with respect to the corresponding transition element, shells with transverse and longitudinal ends, the ribs of each of the struts, crossbars, or jibs of any of the end frames are rounded, mated with the corresponding flat walls along the interface, transition elements are made in the form of four separate panels located on each side of the tank two, opposite each other relative to the vertical axis of symmetry and tanks, the shape of the end face, fastened to the stand and the lower jib, of each panel is defined by an arc of a circle lying between the points of its intersection with the interface of the rib with a flat wall on the rack and the lower jib, and the radius R of the circle corresponding to the radius of the panel is selected from 0.9≤2R / H≤0.95, where H is the standard width of the end frame, while the shells are located below the horizontal axis of symmetry of the tank, at least one on each of the panels and each is fixed with its longitudinal ends on the corresponding panel, the transverse end of one side on the bottom of the tank, and the other end sides - on the lower jib of the corresponding end frame. 2. The tank container according to claim 1, characterized in that the shells on one panel are arranged in two or more, and in relation to each other - end-to-end or with a gap. 3. The tank container according to claim 1, characterized in that at least one shell is made with longitudinal and / or transverse internal stiffening ribs.

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