Liquefied natural gas transport tank
By designing a protective frame structure with support plates and connecting plates on the liquefied natural gas transport tank, the tank's resistance to deformation and the strength of its connection with the truck are enhanced, solving the safety hazard of leakage during transportation and achieving higher safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANGZHOU DONGFENG CAR BODY FACTORY
- Filing Date
- 2025-07-18
- Publication Date
- 2026-06-05
AI Technical Summary
Existing liquefied natural gas transport tanks lack protective features during transportation and are prone to leakage when overturning and colliding with roadblocks or other objects, posing a safety hazard.
A liquefied natural gas transport tank was designed, which uses two support plates and multiple connecting plates to form a protective frame. Combined with inclined reinforcing plates and auxiliary support rods, the tank enhances its resistance to deformation. The tank is connected to the truck through the support plates to improve its stability.
It effectively prevents the tank from colliding with objects when it tipps over, enhancing safety during transportation and reducing the risk of liquefied natural gas leaks.
Smart Images

Figure CN224327004U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of liquefied natural gas transport tank technology, specifically a liquefied natural gas transport tank body. Background Technology
[0002] Liquefied natural gas (LNG), whose main component is methane, is widely recognized as the cleanest fossil fuel on Earth. LNG produces very little air pollution when burned and releases a large amount of heat, making it a relatively advanced energy source. With the growth of global energy demand, LNG has been widely used as a clean energy source.
[0003] Currently, liquefied natural gas (LNG) needs to be stored in transport tanks during transit, and these tanks are then mounted on trucks for transport. However, many transport tanks are simply fixed to the trucks without any protective features. If a transport tank overturns, it is easy for it to collide with roadside obstacles, rocks, or other objects, leading to LNG leaks and endangering public safety. Utility Model Content
[0004] The purpose of this utility model is to provide a liquefied natural gas transport tank to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A liquefied natural gas transport tank includes a tank body with two support plates fixedly installed on it. The two first support plates are sleeved on the tank body and are located at both ends of the tank body. Four transverse connecting plates are fixedly connected horizontally between the two first support plates. Two longitudinal connecting plates are fixedly connected between the two transverse connecting plates on the same side. Multiple connecting rods are fixedly connected between the two longitudinal connecting plates.
[0007] Preferably, the cross-section of the transverse connecting plate is L-shaped, and the two sides of the transverse connecting plate are respectively in contact with and welded to the two sides of the first support plate.
[0008] Preferably, two reinforcing plates are obliquely fixedly connected to the longitudinal connecting plate, and one end of the two reinforcing plates is fixedly connected to the auxiliary support rod, the surface of the auxiliary support rod abutting against the surface of the tank.
[0009] Preferably, a triangular structure is formed between the two auxiliary support rods and the longitudinal connecting plate, wherein a second support plate is fixedly connected between the two auxiliary support rods.
[0010] Preferably, a support leg is fixedly installed at the bottom of the tank, and a notch is opened on the side of the support leg, with one of the auxiliary support rods fitting into the notch.
[0011] Preferably, multiple ear seats are fixedly installed on both of the support plates.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] This utility model uses two first support plates as external supports, and connects the two first support plates with multiple transverse connecting plates to form a protective frame to support the tank in case of side overturning. At the same time, the longitudinal connecting plates and connecting rods can isolate the side of the tank from the side of the support plates to prevent the tank from colliding with other objects when it overturns. Furthermore, the inclined reinforcing plates and auxiliary support rods can increase the deformation resistance of the longitudinal connecting plates, further realizing the support and protection of the tank. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0015] Figure 2 This is a front structural diagram of the present invention;
[0016] Figure 3 This is a schematic diagram of the main structure of the tank body of this utility model;
[0017] Figure 4 This is a schematic diagram of the connection structure between the auxiliary support rod and the longitudinal connecting rod of this utility model.
[0018] In the diagram: 1. Tank body; 2. First support plate; 3. Horizontal connecting plate; 4. Longitudinal connecting plate; 5. Connecting rod; 6. Ear seat; 7. Support leg; 8. Reinforcing plate; 9. Second support plate; 10. Auxiliary support rod; 11. Notch. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] Please see Figure 1-4 This utility model provides a technical solution:
[0021] A liquefied natural gas transport tank includes a tank body 1. Two first support plates 2 are fixedly installed on the tank body 1. The two first support plates 2 are both sleeved on the tank body 1 and are located at both ends of the tank body 1 respectively. Four transverse connecting plates 3 are fixedly connected horizontally between the two first support plates 2. Two longitudinal connecting plates 4 are fixedly connected between the two transverse connecting plates 3 on the same side. Multiple connecting rods 5 are fixedly connected between the two longitudinal connecting plates 4.
[0022] Please see Figure 1 and Figure 2 In this embodiment, the tank body 1 is equipped with double-layer vacuum insulation and is made of austenitic stainless steel. The first support plate 2 is made of Q345R low alloy steel with a thickness of ≥20mm. The distance between the two first support plates 2 is 80%-85% of the length of the tank body 1. They are circumferentially fixed to the tank body 1 by continuous fillet welds. The weld height is not less than 1 / 2 of the plate thickness. The transverse connecting plate 3 is also made of Q345R low alloy steel. The junction of the transverse connecting plate 3 and the longitudinal connecting plate 4 is welded with a K-type bevel weld. Multiple connecting rods 5 form a grid-type anti-collision surface on the longitudinal connecting plate 4.
[0023] The cross-section of the transverse connecting plate 3 is L-shaped, and the two sides of the transverse connecting plate 3 are in contact with and welded to the two sides of the first support plate 2, respectively.
[0024] Please see Figure 2 The transverse connecting plate 3 is connected to the first support plate 2 by double-sided continuous welding. The weld length covers the entire contact surface to ensure bending moment transmission efficiency. Furthermore, since the contact area between the transverse connecting plate 3 and the first support plate 2 is large, the connection strength between the two is also high, which can support a certain degree of collision.
[0025] Two reinforcing plates 8 are obliquely fixedly connected to the longitudinal connecting plate 4. One end of the two reinforcing plates 8 is fixedly connected to the auxiliary support rod 10. The surface of the auxiliary support rod 10 abuts against the surface of the tank 1. The two auxiliary support rods 10 and the longitudinal connecting plate 4 form a triangular structure. A second support plate 9 is fixedly connected between the two auxiliary support rods 10.
[0026] Please see Figure 2 and Figure 4 The longitudinal connecting plate 4, the reinforcing plate 8, and the auxiliary support rod 10 form a triangular truss, which can provide stable support on the side of the tank 1. The second support plate 9 can connect the two triangular trusses on the same side into a whole, further increasing the overall resistance to deformation.
[0027] A support leg 7 is fixedly installed at the bottom of the tank body 1. A notch 11 is opened on the side of the support leg 7, and an auxiliary support rod 10 is fitted into the notch 11.
[0028] Please see Figure 2 and Figure 3 The auxiliary support rod 10 located at the bottom can be engaged inside the notch 11. In the event of a rollover, the cooperation between the auxiliary support rod 10 and the outrigger 7 can withstand a large impact force, so as to prevent the auxiliary support rod 10 from directly transmitting the impact to the tank body 1.
[0029] Multiple ear seats 6 are fixedly installed on both first support plates 2.
[0030] Please see Figure 1 When the tank body 1 is installed on the truck, the support leg 7 under the tank body 1 has a structure that can be connected to the truck. In this embodiment, the lug 6 is also installed on the truck, which greatly increases the connection strength between the tank body 1 and the truck, increases the stability between the tank body 1 and the truck, and prevents the tank body 1 from separating from the truck.
[0031] Two first support plates 2 serve as external supports, and multiple transverse connecting plates 3 connect the two first support plates 2 to form a protective frame to support the tank 1 when it overturns. At the same time, the longitudinal connecting plates 4 and connecting rods 5 can isolate the side of the tank 1 from the side of the first support plates 2 to prevent the tank 1 from colliding with other objects when it overturns. Furthermore, the inclined reinforcing plates 8 and auxiliary support rods 10 can increase the deformation resistance of the longitudinal connecting plates 4, further realizing the support and protection of the tank 1.
[0032] It should be noted that the auxiliary support rod 10 is a Φ50mm solid round steel. The weld length between the second support plate 9 and the auxiliary support rod 10 is ≥80mm, and they are distributed at intervals of 150mm. The outrigger 7 is 500mm high and made of Q355B material. The notch 11 is semi-circular in shape, with a radius 1mm larger than that of the auxiliary support rod 10. During assembly, the auxiliary support rod 10 is inserted into the notch 11. After spot welding, the notch 11 is fully welded closed. The lug 6 is made of 35CrMo material. The bolt holes for connecting the lug 6 to the truck are selected according to GB / T3098.1, using the M24 specification.
[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A liquefied natural gas transport tank, comprising a tank body (1), characterized in that: Two first support plates (2) are fixedly installed on the tank (1). The two first support plates (2) are both sleeved on the tank (1) and the two first support plates (2) are located at both ends of the tank (1). Four horizontal connecting plates (3) are fixedly connected between the two first support plates (2). Two longitudinal connecting plates (4) are fixedly connected between the two horizontal connecting plates (3) on the same side. Multiple connecting rods (5) are fixedly connected between the two longitudinal connecting plates (4).
2. The liquefied natural gas transport tank according to claim 1, characterized in that: The cross-section of the transverse connecting plate (3) is L-shaped, and the two sides of the transverse connecting plate (3) are respectively in contact with the two sides of the first support plate (2) and welded.
3. A liquefied natural gas transport tank according to claim 1, characterized in that: Two reinforcing plates (8) are obliquely fixedly connected to the longitudinal connecting plate (4). One end of the two reinforcing plates (8) is fixedly connected to the auxiliary support rod (10). The surface of the auxiliary support rod (10) abuts against the surface of the tank (1).
4. A liquefied natural gas transport tank according to claim 3, characterized in that: The two auxiliary support rods (10) form a triangular structure with the longitudinal connecting plate (4), wherein a second support plate (9) is fixedly connected between the two auxiliary support rods (10).
5. A liquefied natural gas transport tank according to claim 3, characterized in that: A support leg (7) is fixedly installed on the bottom of the tank (1). A notch (11) is opened on the side of the support leg (7), and one of the auxiliary support rods (10) is fitted into the notch (11).
6. A liquefied natural gas transport tank according to claim 1, characterized in that: Multiple ear seats (6) are fixedly installed on both of the first support plates (2).