A protective device for tank head of tank truck

Abstract

The present invention discloses a protective device for a tank head of a tank truck, which relates to the technical field of heads and comprises a tank head body. The outer wall surface of the tank head body is provided with a mechanism for absorbing impact energy. The mechanism for absorbing impact energy comprises a covering shell, an H-shaped steel and a double-web II-shaped steel. The outer wall of the tank head body is provided with a covering shell. An H-shaped steel is provided at the center between the tank head body and the covering shell. A double-web II-shaped steel is provided near the edge of the tank head body. The left web and the right web of the double-web II-shaped steel are provided with grooves at corresponding heights on the opposite surfaces. By adopting the technical solution of the present invention and the mechanism for absorbing impact energy of the present invention, the collision energy of the storage tank when the tank truck suddenly stops during high-speed driving can be absorbed, which is beneficial to improving the safety of the storage tank during transportation and loading and unloading and reducing potential risks and losses during transportation.

Description

Technical Field

[0001] The present invention relates to the technical field of end caps, and in particular to a protective device for the end cap of a tank truck. Background Art

[0002] With the development of social industry, the demand for various industrial raw materials (especially in the petrochemical field) is becoming more and more decentralized, which requires a variety of transportation methods to cooperate with each other. Among them, tank trucks are a typical and important means of transportation. Moreover, most of the materials transported are flammable, explosive or hazardous raw materials. Once the storage tanks on the trucks collide or are damaged and leak, it will cause great harm or cause serious economic losses.

[0003] To improve the collision and impact resistance of pressure vessels such as tank truck storage tanks during transportation, existing methods specifically protect the heads of pressure vessels. However, there is little research in this area, and existing patents generally focus on protecting pressure vessels in service, rather than protecting pressure vessels involved in the transportation of hazardous chemicals. For example, Chinese invention patents with publication numbers CN105697776A and CN105697772A disclose, respectively, a head with convex shell protection and an explosion-proof head. These designs are highly limited and are suitable for pressure vessels in stationary service. The former has a relatively simple design and poor process continuity during head processing. The latter, based on its design concept, clearly cannot meet the strength requirements for explosion-proof protection or buffering of pressure vessels. Furthermore, the addition of electronic equipment is not conducive to the daily operation and maintenance of the equipment, resulting in significant design limitations. Based on the situation of most domestic transport tank trucks, relatively little attention is paid to the protection of storage tank heads during transportation, and the measures are relatively simple, without a unified standard device, and safety cannot be effectively guaranteed. Summary of the Invention

[0004] In view of the problems existing in the prior art, the purpose of the present invention is to provide a protective device for the tank head of a tank truck. The device of the present invention has high rigidity and strong impact resistance. It can absorb the collision energy of the tank when the tank truck suddenly stops during high-speed driving, which is beneficial to improving the safety of the tank during transportation and loading and unloading, and reducing potential risks and losses during transportation.

[0005] The protective device for the tank head of a tank truck includes a tank head body, and is characterized in that the outer wall surface of the tank head body is provided with a mechanism for absorbing impact energy, and the mechanism for absorbing impact energy includes a covering shell, H-shaped steel and double-web II-shaped steel. The outer wall surface of the tank head body is provided with a covering shell, and a group of H-shaped steel is provided at the center between the tank head body and the covering shell, and a group of double-web II-shaped steel is provided near the edge of the tank head body, and the double-web II-shaped steel includes a left web, a right web, a groove, a second upper flange plate and a second lower flange plate. The opposite surfaces of the left web and the right web of the double-web II-shaped steel are provided with grooves at the same corresponding height, the H-shaped steel is fixedly connected to the tank head body and the covering shell, and the double-web II-shaped steel is fixedly connected to the tank head body and the covering shell.

[0006] The protective device for the tank head of a tank truck is characterized in that the H-shaped steel includes an H-shaped steel web and a first upper flange plate and a first lower flange plate respectively arranged above and below the H-shaped steel web.

[0007] The protective device for the tank head of a tank truck is characterized in that the ratio of the length of the first upper flange plate of the H-shaped steel to the height of the H-shaped steel web is 0.3-0.47 or the ratio of the length of the first lower flange plate of the H-shaped steel to the height of the H-shaped steel web is 0.3-0.47.

[0008] The protective device for the tank head of a tank truck is characterized in that the H-shaped steel is welded to the covering shell through the first upper flange plate, and is welded to the tank head body through the first lower flange plate.

[0009] The protective device for the tank head of a tank truck is characterized in that the first upper flange plate of the H-shaped steel is connected to the covering shell by screws.

[0010] The protective device for the tank head of a tank truck is characterized in that the size of the double web II-shaped steel decreases from the inside to the edge, and the groove is set at 1 / 2 of the height of the opposite surfaces of the left web and the right web.

[0011] The protective device for the tank head of a tank truck is characterized in that the double-web II-shaped steel is welded to the covering shell through the second upper flange plate, and is welded to the tank head body through the second lower flange plate.

[0012] The protective device for the tank head of a tank truck is characterized in that the second upper flange plate of the double-web II-shaped steel is connected to the covering shell by screws.

[0013] The protective device for the tank head of a tank truck is characterized in that the H-shaped steel and the double-web II-shaped steel both fit the arc shape of the tank head body.

[0014] The protective device for the tank head of a tank truck is characterized in that the covering shell is made of cross-linked polypropylene.

[0015] Beneficial effects of the present invention:

[0016] 1) By adopting the technical solution of the present invention and installing the device of the present invention on the head of the storage tank of a transport tank truck, the impact energy absorbing mechanism of the present invention can absorb the collision energy of the storage tank when the tank truck suddenly stops during high-speed driving, which is conducive to improving the safety of the storage tank during transportation and loading and unloading, and reducing potential risks and losses during transportation;

[0017] 2) The device of the present invention has a simple structure, is easy to process and manufacture, has low cost, and the strength of the raw materials is precisely combined with its buffering and shock absorbing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic cross-sectional view of the device of the present invention;

[0019] Figure 2 This is a schematic cross-sectional view of an H-shaped steel according to the present invention;

[0020] Figure 3 It is a schematic cross-sectional view of the double-web II-shaped steel of the present invention.

[0021] In the figure: 1-tank head body; 2-cladding shell; 3-H-shaped steel; 301-H-shaped steel web; 302-first upper flange plate; 303-first lower flange plate; 4-double web II-shaped steel; 401-left web plate; 402-right web plate; 403-groove; 404-second upper flange plate; 405-second lower flange plate. DETAILED DESCRIPTION

[0022] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the described scope.

[0023] like Figure 1-3 As shown, a protective device for a tank head of a tank truck includes a tank head body 1. The upper end surface of the tank head body 1 is an arc-shaped closed surface, and the lower end opening is arranged to be connected to the tank body of the tank truck. The outer wall surface of the tank head body 1 is provided with a mechanism for absorbing impact energy. In this embodiment, the mechanism for absorbing impact energy is hemispherical and includes a covering shell 2, H-shaped steel 3 and double-web II-shaped steel 4.

[0024] The present invention provides a protective device for a tank truck tank head. The outer wall surface of the tank head body 1 is provided with a covering shell 2. In the present invention, the covering shell 2 is made of cross-linked polypropylene. The PP produced by the cross-linking method has high strength, strong chemical stability, and good corrosion resistance. It takes into account both mechanical strength and hardness, and can also make the appearance of the protective device more beautiful. A group of H-shaped steels is provided at the center between the tank head body 1 and the covering shell 2, and a group of double-web II-shaped steels are provided near the edge of the tank head body 1.

[0025] The present invention provides a protective device for the tank head of a tank truck, wherein the H-shaped steel 3 includes an H-shaped steel web 301 and a first upper flange plate 302 and a first lower flange plate 303 respectively arranged above and below the H-shaped steel web 301. Finite element software simulation shows that this part of the H-shaped steel 3 will deform after a collision with the tank to absorb most of the impact energy to protect the head part of the tank, and when the ratio of the length of the first upper flange plate 302 of the H-shaped steel 3 to the height of the H-shaped steel web 301 is 0.3-0.47 or the ratio of the length of the first lower flange plate 303 of the H-shaped steel 3 to the height of the H-shaped steel web 301 is 0.3-0.47, the energy absorption effect after the collision can be optimized, and the H-shaped steel 3 is welded to the covering shell 2 through the first upper flange plate 302 or the first upper flange plate 302 is connected to the covering shell 2 by screws, and it is welded to the tank head body 1 through the first lower flange plate 303.

[0026] The present invention relates to a protective device for a tank head of a tank truck. The double web II steel 4 is arranged near the edge of the tank head body 1. The size of the double web II steel 4 decreases from the inside to the edge, which better plays a transition role in the impact force guidance process, and thus also plays an auxiliary role in protecting the head of the tank truck. The double web II steel 4 includes a left web 401, a right web 402, a groove 403, a second upper flange plate 404 and a second lower flange plate 405. The left web 401 and the right web 404 in the double web II steel 4 are 2 is provided with a groove 403 at the same corresponding height. In this embodiment, the groove 403 is arranged at 1 / 2 of the height of the opposite surfaces of the left web 401 and the right web 402. The groove 403 provided in the present invention enables it to deform quickly after absorbing part of the impact energy, and guides the positive impact force of the tank body to the side. The double-web II-shaped steel 4 is welded to the covering shell 2 through the second upper flange plate 404 or the second upper flange plate 404 is connected to the covering shell 2 by screws, and it is welded to the tank head body 1 through the second lower flange plate 405.

[0027] In the present invention, the double-web II-shaped steel 4 and the H-shaped steel 3 both fit the arc shape of the tank head body 1, and are connected to the tank head body 1 by welding, which not only ensures that they are tightly connected but also has sufficient connection strength, so that they will not be dislocated from each other when the head part is subjected to severe impact, resulting in a decrease in the overall ability of the device to resist impact force.

Claims

1. A protective device for a tank head of a tank truck, comprising a tank head body (1), characterized in that The outer wall of the tank head body (1) is provided with a mechanism for absorbing impact energy, and the mechanism for absorbing impact energy includes a covering shell (2), an H-shaped steel (3) and a double web II steel (4). The outer wall of the tank head body (1) is provided with a covering shell (2). A group of H-shaped steels is provided at the center between the tank head body (1) and the covering shell (2). The tank head body (1) is provided with a group of double web II steels near the edge. The double web II steels (4) include a left web (401), a right web (402), a groove (403), a second upper flange plate (404) and a second lower flange plate (405). The left web (401) and the right web (402) of the double web II steel (4) are provided with grooves (403) at the same corresponding height on the opposite surfaces. The H-shaped steel (3) is fixedly connected to the tank head body (1) and the covering shell (2). The double web II steel (4) It is fixedly connected to both the tank head body (1) and the covering shell (2); The H-shaped steel (3) comprises an H-shaped steel web (301) and a first upper flange plate (302) and a first lower flange plate (303) respectively arranged above and below the H-shaped steel web (301); The ratio of the length of the first upper flange plate (302) of the H-shaped steel (3) to the height of the H-shaped steel web (301) is 0.3-0.47, or the ratio of the length of the first lower flange plate (303) of the H-shaped steel (3) to the height of the H-shaped steel web (301) is 0.3-0.47; The H-shaped steel (3) and the double-web II-shaped steel (4) both fit the arc shape of the tank head body (1).

2. A protective device for a tank truck tank head according to claim 1, characterized in that The H-shaped steel (3) is welded to the cladding shell (2) via a first upper flange plate (302), and is welded to the tank head body (1) via a first lower flange plate (303).

3. The protective device for the tank head of a tank truck according to claim 1, characterized in that The first upper flange plate (302) of the H-shaped steel (3) is connected to the covering shell (2) via screws.

4. The protective device for the tank head of a tank truck according to claim 1, characterized in that The groove (403) is arranged at 1 / 2 of the height of the opposite surfaces of the left web (401) and the right web (402).

5. The protective device for the tank head of a tank truck according to claim 1, characterized in that The double-web II-shaped steel (4) is welded to the cladding shell (2) via the second upper flange plate (404), and is welded to the tank head body (1) via the second lower flange plate (405).

6. The protective device for the tank head of a tank truck according to claim 1, characterized in that The second upper flange plate (404) of the double-web II-shaped steel (4) is connected to the covering shell (2) via screws.

7. The protective device for the tank head of a tank truck according to claim 1, characterized in that The coating shell (2) is made of cross-linked polypropylene.

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