Tank container

Abstract

The present invention provides a tank container, which comprises a tank body and a pair of end frames respectively arranged at two ends of the tank body. A reinforcing ring is arranged on the outer periphery of the tank body. The end frame includes a bottom beam located below the tank body. The tank container further includes a beam element, and two ends of the beam element are respectively connected to the reinforcing ring and the bottom beam. The arrangement of the beam element can decompose the load borne by the end of the tank body onto the end frame and the reinforcing ring, effectively reducing the stress on the end of the tank body, avoiding the occurrence of stress concentration in the tank body, and at the same time enhancing the ability of the local part of the tank body to withstand impact and abrasion, ensuring the normal operation of the tank container under various transportation conditions and extending the service life of the tank container.

Description

Technical Field

[0001] The present invention relates to the field of storage and transportation equipment, and particularly to a tank container. Background Art

[0002] Tank containers are mainly used for shipping liquid, gaseous or powder-like goods. Compared with traditional iron barrels and box containers for transportation, tank containers have the advantages of economy, speed, safety, environmental protection, etc. Therefore, the market demand for tank containers is increasing day by day and has gradually developed into an important storage and transportation equipment in the world.

[0003] The existing tank container consists of a frame and a tank body arranged inside the frame. When the tank body is filled with a medium, especially during the transportation of the tank container, large stress concentrations are likely to occur at the ends of the tank body, which can easily lead to damage to the tank head and thus greatly reduce the service life of the tank container. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem in the prior art that there are large stress concentrations at the ends of the tank body, which destroys the structural stability of the tank body and shortens the service life of the tank container.

[0005] To achieve the above purpose, the present invention provides a tank container, which includes a tank body and a pair of end frames respectively arranged at both ends of the tank body. A reinforcing ring is provided on the outer periphery of the tank body. The end frame includes a bottom beam located below the tank body. The tank container further includes beam elements, and both ends of the beam elements are respectively connected to the reinforcing ring and the bottom beam.

[0006] Preferably, the tank body includes a cylindrical body with openings at both ends and end heads arranged at both ends of the cylindrical body and forming a sealed space inside the cylindrical body. A connecting ring is provided on the outer periphery of the end head, and the connecting ring is connected to the end frame to fix the end frame at the end of the tank body.

[0007] Preferably, both ends of the beam element are respectively welded to the reinforcing ring and the bottom beam, and the beam element is also welded to the outer wall of the tank body and the outer surface of the connecting ring.

[0008] Preferably, a plurality of welding surfaces are provided on the beam element, and the plurality of welding surfaces are arranged at intervals along the length direction of the beam element.

[0009] Preferably, a discharge port is provided at the bottom of one end of the tank body, and a notch corresponding to the discharge port is provided on the connecting ring near the discharge port.

[0010] Preferably, the tank container includes a pair of beam elements, and the pair of beam elements are respectively located on both sides of the notch.

[0011] Preferably, a plurality of reinforcing rings are provided, and the plurality of reinforcing rings are arranged at intervals along the length direction of the tank body on the outer periphery of the tank body; one end of the beam element is connected to the reinforcing ring close to the end frame.

[0012] Preferably, the beam element is a channel steel.

[0013] As can be seen from the above technical solutions, the beneficial effects of the present invention are as follows:

[0014] In the tank container of the present invention, a beam element is provided. One end of the beam element is connected to the reinforcing ring on the outer periphery of the tank body, and the other end is connected to the bottom beam of the end frame. The setting of the beam element can decompose the load borne by the end of the tank body onto the end frame and the reinforcing ring, effectively reducing the force on the end of the tank body, avoiding the situation of stress concentration in the tank body, and at the same time enhancing the ability of the tank body to withstand impact and wear locally, ensuring the normal operation of the tank container under various transportation conditions and extending the service life of the tank container. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of an embodiment of the tank container of the present invention.

[0016] Figure 2 is a schematic structural diagram of the end frame in the embodiment of the tank container of the present invention.

[0017] Figure 3 is Figure 1 a partial enlarged view at A in

[0018] Figure 4 is a schematic structural diagram of the welding surface of the beam element in the embodiment of the tank container of the present invention.

[0019] Figure 5 is Figure 2 a partial enlarged view at B in

[0020] The description of the reference numerals is as follows: 1, tank container; 11, tank body; 111, cylinder; 112, head; 12, end frame; 121, top beam; 122, bottom beam; 123, corner post; 13, connecting ring; 14, reinforcing ring; 15, beam element; 151, welding surface; 16, discharge port. DETAILED DESCRIPTION OF THE INVENTION

[0021] Typical embodiments embodying the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various changes in different embodiments, all of which do not depart from the scope of the present invention, and the descriptions and illustrations therein are essentially for illustrative purposes and not for limiting the present invention.

[0022] In order to further illustrate the principle and structure of the present invention, the preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0023] Refer to Figure 1 and Figure 2 In this embodiment, the tank container 1 includes a tank body 11 and a pair of end frames 12 respectively disposed at both ends of the tank body 11. The end frame 12 includes a top beam 121, a bottom beam 122, and a pair of corner posts 123 disposed therebetween. The bottom beam 122 is disposed below the tank body 11.

[0024] The tank container 1 may further include a pair of top side beams disposed above the tank body 11 and a pair of bottom side beams disposed below the tank body 11. The top side beams and the bottom side beams are both connected between the two end frames 12. The end frames 12, the top side beams, and the bottom side beams disposed on the outer periphery of the tank body 11 can not only protect and support the tank body 11, but also realize the hoisting and transportation of the tank container 1.

[0025] The tank body 11 includes a cylindrical barrel 111 with both ends penetrating and two end heads 112 disposed at both ends of the barrel 111. The barrel 111 is cylindrical, and the two end heads 112 are connected to both ends of the barrel 111 to enclose a sealed space. The tank body 11 can contain toxic, non-toxic, corrosive, non-corrosive gaseous, liquid goods or solid powder-like goods.

[0026] Connection rings 13 are provided on the outer peripheries of the two end heads 112. In this embodiment, the connection rings 13 are welded to the outer walls of the end heads 112. The connection rings 13 are also welded to the end frames 12, that is, one side of the connection ring 13 is welded to the end head 112, and the other side is welded to the end frame 12, so that the end frame 12 is fixed to the end of the tank body 11.

[0027] Reinforcing rings 14 are provided on the outer periphery of the tank body 11. In order to strengthen the stability of the overall structure of the tank body 11, in this embodiment, a plurality of reinforcing rings 14 are provided, and the plurality of reinforcing rings 14 are arranged at intervals along the length direction of the tank body 11 on the outer periphery of the tank body 11. This can improve the strength of the tank body 11 to better resist external pressure.

[0028] When the tank body 11 contains a medium, especially during transportation, stress concentration is likely to occur at the ends of the tank body 11, which will cause local damage to the tank body 11, thus greatly reducing the service life of the tank container 1.

[0029] To avoid the above situation and ensure the stability of the structure of the tank body 11 to the greatest extent, a beam element 15 is also provided in the tank container 1 of this embodiment. Refer to Figure 3 One end of the beam element 15 is connected to the reinforcing ring 14, and the other end is connected to the bottom beam 122.

[0030] The beam element 15 can decompose the load borne by the end of the tank body 11 onto the end frame 12 and the reinforcing ring 14, effectively reducing the stress on the end of the tank body 11, avoiding stress concentration in the tank body 11, enhancing the ability of the tank body 11 to withstand local impacts and abrasions, ensuring the normal operation of the tank body 11 under various transportation conditions, and extending the service life of the tank container 1.

[0031] Furthermore, a plurality of reinforcing rings 14 are provided on the outer periphery of the tank body 11, and the ends of the beam element 15 are only connected to the reinforcing ring 14 near the end frame 12 to simplify the installation operation of the beam element 15.

[0032] To enhance the effect of the beam element 15 in relieving stress concentration, a plurality of beam elements 15 can be provided in the tank container 1. The beam element 15 can be made of a steel structure, and its cross-section can be in the shape of a groove, trapezoid, circle, semi-circle, etc. In this embodiment, the beam element 15 is a channel steel to facilitate connection with corresponding components.

[0033] In this embodiment, the two ends of the beam element 15 are respectively welded to the reinforcing ring 14 and the bottom beam 122, and the beam element 15 is also welded to the outer wall of the tank body 11 and the outer surface of the connecting ring 13. This can strengthen the connection strength between the beam element 15 and related components, avoid the fracture of the beam element 15 itself, and ensure the normal operation of the beam element 15.

[0034] Preferably, as Figure 4 shown, a plurality of welding surfaces 151 can be provided on the beam element 15 to facilitate its welding with corresponding structures. The plurality of welding surfaces 151 are arranged at intervals along the length direction of the beam element 15, that is, the beam element 15 is longitudinally attached and welded to the outer surfaces of the connecting ring 13 and the tank body 11.

[0035] Referring to Figure 5 , the tank container 1 in this embodiment adopts a bottom discharging method, that is, a discharging port 16 is provided at the bottom of one end of the tank body 11. To leave space for arranging relevant discharging valves, a notch is provided at the position corresponding to the discharging port 16 on the connecting ring 13 near the discharging port 16.

[0036] Since the connecting ring 13 is the main connecting component between the tank body 11 and the frame, the disconnection of the connecting ring 13 not only destroys its overall continuity and weakens its connection stiffness, but also a large stress concentration will occur in the longitudinal joint area between the two sides of the notch of the connecting ring 13 and the head 112 of the tank body 11, which is likely to cause damage to the head 112 of the tank body 11.

[0037] In order to ensure the structural integrity of the tank container 1 on the premise of adopting bottom discharging, in this embodiment, a pair of beam elements 15 are provided, and the pair of beam elements 15 are respectively located on both sides of the notch of the connecting ring 13. In this way, the stress on both sides of the notch of the connecting ring 13 can be dispersed to the end frame 12 and the reinforcing ring 14, and the acting force of the dynamic load on the head 112 and the connecting ring 13 can be effectively reduced.

[0038] Fatigue tests are carried out on both the tank container with the traditional structure and the container of this embodiment, that is, under the same load conditions, the number of cyclic uses of the two types of tank containers and the damage conditions of their structures are recorded. The results of the fatigue test are shown in Table 1.

[0039] Table 1

[0040] Structural form Dynamic load Number of recycling times Damage condition Traditional tank container 120KN 400,000 times Cracks appear at the weld between the connecting ring and the head The tank container of this embodiment 120KN 1,050,000 times No damage

[0041] As can be seen from the above table, under the same load conditions, the tank container of this embodiment can be cyclically used 1.05 million times, which is much greater than the 400,000 times of the traditional tank container. Moreover, there is no damage to the container of this embodiment after the test, while cracks appear at the weld between the connecting ring and the head of the traditional tank container. Therefore, it can be concluded that the tank container of this embodiment effectively improves the stress concentration prone to occur at the end of the tank body, and the service life is extended.

[0042] Although the present invention has been described with reference to several exemplary embodiments, it should be understood that the terms used are illustrative and exemplary, rather than restrictive. Since the present invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be broadly construed within the spirit and scope defined by the appended claims. Therefore, all changes and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A tank container, characterized in that, it includes a tank body and a pair of end frames respectively arranged at both ends of the tank body. A reinforcing ring is provided on the outer periphery of the tank body. The end frame includes a bottom beam located below the tank body; the tank container further includes a beam element, and both ends of the beam element are respectively connected to the reinforcing ring and the bottom beam; the tank body includes a cylindrical body with openings at both ends and end heads arranged at both ends of the cylindrical body and forming a sealed space inside the cylindrical body; a connecting ring is provided on the outer periphery of the end head, and the connecting ring is connected to the end frame so that the end frame is fixed at the end of the tank body; both ends of the beam element are respectively welded to the reinforcing ring and the bottom beam, and the beam element is longitudinally attached and welded to the outer wall of the tank body and the outer surface of the connecting ring; in the height direction of the tank body, the connection position of the beam element and the reinforcing ring is higher than the connection position of the beam element and the connecting ring, and the connection position of the beam element and the connecting ring is higher than the connection position of the beam element and the bottom beam; a plurality of welding surfaces are provided on the beam element, and the plurality of welding surfaces are arranged at intervals along the length direction of the beam element; the tank container includes a pair of beam elements, and the pair of beam elements are respectively located on both sides of the notch of the connecting ring.

2. The tank container according to claim 1, characterized in that, a discharge port is provided at the bottom of one end of the tank body, and a notch corresponding to the discharge port is provided on the connecting ring near the discharge port.

3. The tank container according to claim 1, characterized in that, a plurality of reinforcing rings are provided, and the plurality of reinforcing rings are arranged at intervals along the length direction of the tank body on the outer periphery of the tank body; one end of the beam element is connected to the reinforcing ring near the end frame.

4. The tank container according to claim 1, characterized in that, the beam element is a channel steel.

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