Transport vehicle LNG gas cylinder suitable for complex environment

Abstract

The utility model relates to high pressure container technical field discloses a kind of transport vehicle LNG gas cylinder suitable for complex environment, including shell, the outside of shell is provided with buffer mechanism, the buffer mechanism is used to slow down inertia effect, the left side fixedly connected with sealing cover of shell, the bottom of shell is provided with fixed mechanism, the fixed mechanism is used to connect car body, the outside of sealing cover is provided with sealing mechanism, the bottom of shell is provided with heat exchange mechanism, the buffer mechanism includes two fixed rings, the inner wall of two fixed rings is fixedly connected in the outer wall of shell.In the utility model, the shell of gas cylinder is fixed by fixed ring, the cross rib provides support, the horizontal plate and side plate are connected with damping parts, front and back vibration is transmitted to hydraulic cylinder by hydraulic rod, while spring contraction slows down stress, reduces the vibration transmission and stress accumulation of vehicle, avoids temperature influence, improves the stability of whole.

Description

Technical Field

[0001] This utility model relates to the field of high-pressure container technology, and in particular to an LNG storage cylinder for transport vehicles suitable for complex environments. Background Technology

[0002] LNG storage cylinders are cryogenic insulated pressure vessels used to store liquefied natural gas. LNG is a product of natural gas that has been purified and liquefied at ultra-low temperatures. Its volume is much smaller than that of the same amount of gaseous natural gas. LNG storage cylinders are mainly used in LNG vehicles, including city buses and large freight vehicles, to provide fuel for the vehicles. Moreover, liquefied natural gas has a high energy density, which enables vehicles to have a long driving range and has significant economic benefits.

[0003] LNG storage cylinders for transport vehicles are high-pressure containers specifically designed for storing and transporting liquefied natural gas. They possess excellent thermal insulation, vibration resistance, and safety to adapt to various road conditions and environmental environments. The main body adopts a double-layer structure, with the inner container used to store LNG and a vacuum insulation layer between the inner and outer containers. Vacuum powder or high-vacuum multilayer insulation is used to reduce heat conduction, convection, and radiation, thereby reducing LNG evaporation loss. However, there are many problems in the use of LNG storage cylinders for transport vehicles. Traditional rigid supports accumulate stress during temperature cycling, leading to weld cracking. At the same time, when the vehicle makes sharp turns or brakes suddenly, the rigid fixed structure is unable to buffer the instantaneous impact force, causing displacement of the inner liner. Existing solutions use low-expansion-coefficient alloys to make supports to solve the support problem caused by the large difference in thermal expansion coefficients. However, the problems of high material cost and high processing difficulty still exist, and the accumulation of thermal stress cannot be completely eliminated. The problem of insufficient stability under impact loads still exists. Therefore, a transport vehicle LNG storage cylinder suitable for complex environments is proposed to solve the above problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides an LNG storage cylinder for transport vehicles suitable for complex environments, aiming to improve the problems of insufficient stability and stress accumulation in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an LNG storage cylinder for a transport vehicle suitable for complex environments, comprising an outer shell, a buffer mechanism provided on the outside of the outer shell to reduce inertial effects, a sealing cap fixedly connected to the left side of the outer shell, a fixing mechanism provided at the bottom of the outer shell to connect to the vehicle body, a sealing mechanism provided on the outside of the sealing cap, and a heat exchange mechanism provided at the bottom of the outer shell. The buffer mechanism includes two fixed rings, the inner walls of which are fixedly connected to the outer wall of the outer shell. Two transverse ribs are fixedly connected to adjacent sides of the two fixed rings. Two through holes are opened on the outer walls of the two fixed rings. A horizontal plate is fixedly connected to the bottom of the two fixed rings. Two side plates are fixedly connected to the bottom of the two horizontal plates. Two hydraulic cylinders are fixedly connected to the bottom of the two horizontal plates. Hydraulic rods are slidably connected to the inner walls of the hydraulic cylinders. Springs are fixedly connected to the outer walls of the hydraulic cylinders. Vibration damping components are provided on the outer walls of the two horizontal plates.

[0006] As a further description of the above technical solution: The fixing mechanism includes two vertical support plates. The adjacent sides of the two vertical support plates are fixedly connected to the outer wall of multiple hydraulic rods. A connecting base plate is fixedly connected to the bottom of the two vertical support plates. Two horizontal support plates are fixedly connected to the top of the connecting base plate. Multiple reinforcing ribs are fixedly connected to the top of the connecting base plate. Multiple reinforcing ribs are fixedly connected to the top of the connecting base plate. A buffer pad is fixedly connected to the adjacent sides of the two vertical support plates. A connecting assembly is provided on the outer wall of the connecting base plate.

[0007] As a further description of the above technical solution: The sealing mechanism includes an extension plate, the top of which is fixedly connected to the bottom of the sealing cover. An air inlet is provided at the left front end of the extension plate, and an air outlet is provided at the right front end of the extension plate.

[0008] As a further description of the above technical solution: The heat exchange mechanism includes multiple reinforcing rings, the bottom of which is fixedly connected to the top of two horizontal plates. Heat exchangers are fixedly connected to the inner walls of the multiple reinforcing rings, and air pipes are connected to the interiors of the two heat exchangers.

[0009] As a further description of the above technical solution: The vibration damping assembly includes multiple damping dampers, the tops of which are fixedly connected to the bottoms of two horizontal plates, and two buffer dampers are fixedly connected to the outer walls of the multiple side plates.

[0010] As a further description of the above technical solution: The connecting assembly includes multiple bolts, the outer walls of which are threaded to the outer wall of the connecting base plate, and the outer wall of the connecting base plate is provided with multiple threaded holes.

[0011] As a further description of the above technical solution: A control panel is fixedly connected to the left side of the sealing cover, and a pressure sensor is fixedly connected to the top of the housing.

[0012] As a further description of the above technical solution: The outer shell has an internal interlayer, and an inner liner is fixedly connected to the inner wall of the outer shell.

[0013] This utility model has the following beneficial effects: 1. In this utility model, the outer shell of the gas cylinder is fixed by a fixing ring, the transverse ribs provide support, and the transverse plate and side plate are connected to vibration damping components. The front and rear vibrations are transmitted to the hydraulic cylinder by the hydraulic rod, and the spring contraction reduces the stress. The up and down vibrations are blocked by the damping shock absorber, and the vibrations from the left and right directions are buffered by the buffer shock absorber. This reduces the rigid connection around the gas cylinder, avoids the influence of cold and heat, reduces the vibration transmission and stress accumulation of the vehicle, and improves the overall stability.

[0014] 2. In this utility model, a transition section is required between the gas storage cylinder and the vibration damping component and the vehicle body. The connecting base plate has screw holes and is connected to the vehicle body by bolts, which facilitates overall disassembly. The vertical support plate and the horizontal support plate are used to receive and buffer stress. They are areas where forces are concentrated, so they need to be fixed by reinforcing rib one and reinforcing rib two to enhance the resistance to vibration and stress concentration, improve the overall stability, and decompose the stress in various directions to avoid excessive concentration. Attached Figure Description

[0015] Figure 1 This is a perspective view of an LNG storage cylinder for a transport vehicle suitable for complex environments, as proposed in this utility model. Figure 2 This is a front view of an LNG storage cylinder for a transport vehicle suitable for complex environments, as proposed in this utility model. Figure 3 This is a schematic diagram of the structure of an extension plate for an LNG storage cylinder in a transport vehicle suitable for complex environments, as proposed in this utility model. Figure 4 This is a cross-sectional view of the inner liner of an LNG storage cylinder for a transport vehicle suitable for complex environments, as proposed in this utility model. Figure 5 This is a schematic diagram of the structure of a connecting base plate for an LNG storage cylinder in a transport vehicle suitable for complex environments, as proposed in this utility model.

[0016] Legend: 1. Outer shell; 2. Sealing cover; 3. Buffer mechanism; 301. Fixing ring; 302. Horizontal rib; 303. Through hole; 304. Horizontal plate; 305. Side plate; 306. Hydraulic cylinder; 307. Hydraulic rod; 308. Spring; 309. Vibration damping assembly; 3091. Damping vibration damper; 3092. Buffer vibration damper; 4. Fixing mechanism; 401. Vertical support plate; 402. Connecting base plate; 403. Horizontal support 404. Plate; 405. Reinforcing rib 1; 406. Reinforcing rib 2; 407. Buffer pad; 408. Connecting assembly; 409. Bolt; 4000. Screw hole; 5. Sealing mechanism; 501. Extension plate; 502. Air inlet; 503. Air outlet; 6. Heat exchange mechanism; 601. Reinforcing ring; 602. Heat exchanger; 603. Air pipe; 7. Control panel; 8. Pressure sensor; 9. Layer; 10. Inner liner. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0018] See attached document Figure 2 Appendix Figure 3 and attached Figure 4 An embodiment of this utility model provides: an LNG storage cylinder for a transport vehicle suitable for complex environments, including an outer shell 1, a buffer mechanism 3 on the outside of the outer shell 1 to reduce inertial effects, a sealing cover 2 fixedly connected to the left side of the outer shell 1, a fixing mechanism 4 on the bottom of the outer shell 1 to connect to the vehicle body, a sealing mechanism 5 on the outside of the sealing cover 2 to cover various pipes and valves, and a heat exchange mechanism 6 on the bottom of the outer shell 1 for the liquefaction and vaporization of natural gas; The buffer mechanism 3 includes two fixing rings 301. The inner walls of the two fixing rings 301 are fixedly connected to the outer wall of the outer shell 1. The fixing rings 301 are used to fix the gas cylinder and prevent it from shifting and causing a dangerous accident. Two transverse ribs 302 are fixedly connected to adjacent sides of the two fixing rings 301. The transverse ribs 302 are used for connection and support, and provide longitudinal stress. Two through holes 303 are opened on the outer walls of the two fixing rings 301. Part of the exposed pipe passes through the through holes 303 to reduce pipe length waste. A horizontal plate 304 is fixedly connected to the bottom of the two fixing rings 301. Two side plates 305 are fixedly connected to the bottom of the two horizontal plates 304. Both 304 and side plate 305 increase the contact area to facilitate the connection and installation of various vibration damping devices. Two hydraulic cylinders 306 are fixedly connected to the bottom of each of the two horizontal plates 304. Hydraulic rods 307 are slidably connected to the inner walls of the multiple hydraulic cylinders 306. When the hydraulic rods 307 are subjected to force, the force is transmitted to the hydraulic cylinders 306 through sliding, so that the stress is converted into heat and dissipated, achieving the vibration damping effect. Springs 308 are fixedly connected to the outer walls of the multiple hydraulic cylinders 306. The springs 308 also absorb force and convert it into potential energy for storage, thus offsetting vibration. Vibration damping components 309 are provided on the outer walls of the two horizontal plates 304. Vibration damping components 309 are used to reduce forces in all directions. The vibration damping assembly 309 includes multiple damping dampers 3091. The tops of the multiple damping dampers 3091 are fixedly connected to the bottom of the two horizontal plates 304. The vertical vibrations generated by the vehicle are slowed down and absorbed by the damping dampers 3091 and turned into heat dissipation. The outer walls of the multiple side plates 305 are fixedly connected to two buffer dampers 3092. The left and right vibrations generated by the vehicle turning or other situations are slowed down and absorbed by the buffer dampers 3092. Specifically, the fixing ring 301 is used to fix the gas cylinder to prevent it from shifting and causing dangerous accidents. The transverse rib 302 is used for connection and support, providing longitudinal stress and improving the stability of the fixing ring 301. Some exposed pipes pass through the through hole 303 to reduce pipe length waste. The horizontal plate 304 and the side plate 305 increase the contact area, facilitating the connection and installation of various vibration damping devices. The inner walls of multiple hydraulic cylinders 306 are slidably connected to hydraulic rods 307. When the hydraulic rods 307 are subjected to force, the force is transmitted to the hydraulic cylinders 306 through sliding, so that the stress is converted into heat and dissipated, achieving the vibration damping effect. The spring 308 connects the vertical support plate 401 and the hydraulic cylinders 306. The spring 308 also absorbs force and converts it into potential energy storage to offset vibration. The vertical vibration generated by the vehicle is slowed down and absorbed by the damping shock absorber 3091 and converted into heat dissipation. The lateral vibration generated by the vehicle turning or other situations is slowed down and absorbed by the buffer shock absorber 3092. The rigid connection around the gas cylinder is reduced to avoid the influence of cold and heat, reduce the transmission of vehicle vibration and stress accumulation, and improve the overall stability.

[0019] See attached document Figure 1 Appendix Figure 2and attached Figure 5 The fixing mechanism 4 includes two vertical support plates 401. The adjacent sides of the two vertical support plates 401 are fixedly connected to the outer wall of multiple hydraulic rods 307. The vertical support plates 401 have an enlarged contact area and are connected to the springs 308 and hydraulic rods 307 to bear stress from the front and rear directions. A connecting base plate 402 is fixedly connected to the bottom of the two vertical support plates 401. The connecting base plate 402 also has an enlarged contact area and is connected to the damping shock absorber 3091 to bear stress from the vertical direction. It is also connected to the vertical support plates 401 and the horizontal support plates 403 to provide support and distribute the pressure transmitted to the vehicle body. Two horizontal support plates 403 are fixedly connected to the top of the connecting base plate 402. The horizontal support plates 403 also have an enlarged contact area and are connected to the damping shock absorber 3091. The two-phase connection is used to withstand stress from the left and right directions. Multiple reinforcing ribs 404 are fixedly connected to the top of the connecting base plate 402. The reinforcing ribs 404 are connected to the horizontal support plate 403 to improve stability and enhance resistance. Multiple reinforcing ribs 405 are fixedly connected to the top of the connecting base plate 402. The reinforcing ribs 405 are connected to the vertical support plate 401 to improve stability and enhance resistance. Buffer pads 406 are fixedly connected to adjacent sides of the two vertical support plates 401. Since the vehicle experiences large and frequent vibrations from the front and rear, the buffer pads 406 are used to alleviate the rigid contact between the vertical support plate 401 and the horizontal plate 304 under severe vibration. A connecting assembly 407 is provided on the outer wall of the connecting base plate 402. The connecting assembly 407 is used for connection with the vehicle carrier. The connecting assembly 407 includes multiple bolts 4071, the outer walls of which are threaded to the outer wall of the connecting base plate 402. The outer wall of the connecting base plate 402 is provided with multiple screw holes 4072. The connecting base plate 402 is threaded to the vehicle, which is convenient for fixing and disassembly. It is also far away from the gas cylinder and is less affected by temperature. Specifically, the vertical support plate 401 has an enlarged contact area and is connected to the spring 308 and hydraulic rod 307 to bear stress from the front and rear directions. The connecting base plate 402 also has an enlarged contact area and is connected to the damping shock absorber 3091 to bear stress from the vertical directions. It is also connected to the vertical support plate 401 and the horizontal support plate 403 to provide support and distribute the pressure to the vehicle body. The horizontal support plate 403 also has an enlarged contact area and is connected to the shock absorber 3092 to bear stress from the left and right directions. The reinforcing rib 404 connects to the horizontal support plate. 403, improves stability and enhances durability. Reinforcing rib 405 connects to vertical support plate 401, improving stability and enhancing durability. Due to the large and frequent vibrations from the front and rear of the vehicle, buffer pad 406 is used to alleviate severe vibrations. The rigid contact between vertical support plate 401 and horizontal plate 304, and the threaded connection between connecting base plate 402 and the vehicle, facilitates fixing and disassembly. It is also far from the gas cylinder, making it less susceptible to temperature effects, enhancing resistance to vibration and stress concentration, improving overall stability, and dispersing stress in various directions to avoid excessive concentration.

[0020] See attached document Figure 1 Appendix Figure 2 and attached Figure 3 The sealing mechanism 5 includes an extension plate 501. The top of the extension plate 501 is fixedly connected to the bottom of the sealing cover 2. The sealing cover 2 covers all the pipes and valves required by the gas storage tank, reducing exposure and further sealing. Some pipe openings that need to be connected to the outside are connected to the outside through the extension plate 501. An air inlet 502 is opened at the front left end of the extension plate 501, and an air outlet 503 is opened at the front right end of the extension plate 501. The air inlet 502 is the channel for liquid or gaseous natural gas to enter the gas storage cylinder. Its main functions revolve around filling the gas storage cylinder, pressure regulation and replenishing the gas source. The air outlet 503 is the channel for the gas storage cylinder to supply natural gas to the gas-using equipment. Its core function is to safely and stably output the natural gas in the gas storage cylinder. The heat exchange mechanism 6 includes multiple reinforcing rings 601. The bottom of each reinforcing ring 601 is fixedly connected to the top of two horizontal plates 304. The reinforcing rings 601 are used to fix the heat exchanger 602. The heat exchanger 602 is fixedly connected to the inner wall of each reinforcing ring 601. The core function of the heat exchanger 602 is to convert low-temperature liquefied natural gas into room-temperature gaseous natural gas. At the same time, through heat exchange efficiency regulation, waste heat recovery and safety protection design, the stability and safety of fuel supply are ensured. The interior of each heat exchanger 602 is connected to a gas pipe 603, and the gas pipe 603 flows with liquid or gaseous natural gas. A control panel 7 is fixedly connected to the left side of the sealing cover 2. The control panel 7 controls various valves inside the sealing cover 2. A pressure sensor 8 is fixedly connected to the top of the outer shell 1. The pressure sensor 8 is used to monitor the internal natural gas pressure to prevent leakage. An interlayer 9 is opened inside the outer shell 1. The interlayer 9 is filled with high-efficiency heat insulation material and is vacuumed to form a good heat insulation barrier, minimizing heat transfer and ensuring the stability of liquid natural gas during storage. An inner liner 10 is fixedly connected to the inner wall of the outer shell 1. The inner liner 10 is used to store natural gas. Specifically, the sealing cap 2 covers all the pipes and valves required by the gas storage tank, reducing exposure and further sealing them. Some pipe openings that need to connect to the outside are extended through the extension plate 501 for external connection. The inlet 502 is the channel for liquid or gaseous natural gas to enter the gas storage cylinder, and its main functions revolve around filling the gas storage cylinder, pressure regulation, and replenishing the gas source. The outlet 503 is the channel for supplying natural gas from the gas storage cylinder to the gas-using equipment; its core function is to safely and stably output the natural gas from the gas storage cylinder. The reinforcing ring 601 is used to fix and connect the heat exchanger 602. The core function of the heat exchanger 602 is to... Low-temperature liquefied natural gas is converted into room-temperature gaseous natural gas. At the same time, through heat exchange efficiency regulation, waste heat recovery and safety protection design, the stability and safety of fuel supply are ensured. Liquid or gaseous natural gas flows in the gas pipe 603. Various valves inside the sealing cover 2 are controlled by the control panel 7. The pressure sensor 8 is used to monitor the internal natural gas pressure to prevent leakage. The interlayer 9 is filled with high-efficiency heat insulation material and is vacuumed to form a good heat insulation barrier, minimizing heat transfer and ensuring the stability of liquefied natural gas during storage. The inner liner 10 is used to store natural gas.

[0021] Working principle: When transporting and carrying the gas cylinder, a fixing ring 301 is used to fix the gas cylinder to prevent it from shifting and causing dangerous accidents. The transverse rib 302 is used for connection and support, providing longitudinal stress and improving the stability of the fixing ring 301. Some exposed pipes pass through the through hole 303 to reduce pipe length waste. The horizontal plate 304 and the side plate 305 increase the contact area, which facilitates the connection and installation of various vibration damping devices. The inner walls of multiple hydraulic cylinders 306 are slidably connected to hydraulic rods 307. When the hydraulic rods 307 are subjected to force, they are transmitted to the hydraulic cylinders 306 through sliding, so that the stress is converted into heat and dissipated, achieving the vibration damping effect. The spring 308 connects the vertical support plate 401 and the hydraulic cylinders 306. The spring 308 also absorbs force and converts it into potential energy storage to offset vibration. The vertical vibration generated by the vehicle is slowed down and absorbed by the damping shock absorber 3091 and converted into heat dissipation. The lateral vibration generated by the vehicle turning or other situations is slowed down and absorbed by the buffer shock absorber 3092. The rigid connection around the gas cylinder is reduced to avoid the influence of cold and heat, reduce the transmission of vehicle vibration and stress accumulation, and improve the overall stability. Furthermore, the bottom of the air tank has an enlarged contact area thanks to the vertical support plate 401, which connects to the spring 308 and hydraulic rod 307 to withstand stress from the front and rear directions. The connecting base plate 402 also has an enlarged contact area, connecting to the damping shock absorber 3091 to withstand stress from the top and bottom directions. It also connects to the vertical support plate 401 and the horizontal support plate 403, providing support and spreading the pressure to the vehicle body. The horizontal support plate 403 also has an enlarged contact area, connecting to the buffer shock absorber 3092 to withstand stress from the left and right directions. The reinforcing rib 404 connects to the horizontal support. Support plate 403 enhances stability and increases durability. Reinforcing rib 405 connects to vertical support plate 401, enhancing stability and increasing durability. Due to the large and frequent vibrations from the front and rear of the vehicle, buffer pad 406 is used to alleviate severe vibrations. The rigid contact between vertical support plate 401 and horizontal plate 304, and the threaded connection between the connecting base plate 402 and the vehicle facilitates fixing and disassembly. It is also far from the gas cylinder, making it less susceptible to temperature effects, enhancing resistance to vibration and stress concentration, improving overall stability, and dispersing stress in various directions to avoid excessive concentration.

[0022] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An LNG storage cylinder for transport vehicles suitable for complex environments, comprising an outer shell (1), characterized in that: The outer shell (1) is provided with a buffer mechanism (3) to reduce inertial effects. A sealing cover (2) is fixedly connected to the left side of the outer shell (1). A fixing mechanism (4) is provided at the bottom of the outer shell (1) to connect to the vehicle body. A sealing mechanism (5) is provided on the outside of the sealing cover (2). A heat exchange mechanism (6) is provided at the bottom of the outer shell (1). The buffer mechanism (3) includes two fixed rings (301), the inner walls of the two fixed rings (301) are fixedly connected to the outer wall of the outer shell (1), two transverse ribs (302) are fixedly connected to each adjacent side of the two fixed rings (301), two through holes (303) are opened on the outer walls of the two fixed rings (301), a horizontal plate (304) is fixedly connected to the bottom of the two fixed rings (301), two side plates (305) are fixedly connected to the bottom of the two horizontal plates (304), two hydraulic cylinders (306) are fixedly connected to the bottom of the two horizontal plates (304), a hydraulic rod (307) is slidably connected to the inner wall of the multiple hydraulic cylinders (306), a spring (308) is fixedly connected to the outer wall of the multiple hydraulic cylinders (306), and a vibration damping component (309) is provided on the outer wall of the two horizontal plates (304).

2. The LNG storage cylinder for a transport vehicle suitable for complex environments according to claim 1, characterized in that: The fixing mechanism (4) includes two vertical support plates (401). The adjacent sides of the two vertical support plates (401) are fixedly connected to the outer wall of multiple hydraulic rods (307). The bottom of the two vertical support plates (401) is fixedly connected to a connecting base plate (402). The top of the connecting base plate (402) is fixedly connected to two horizontal support plates (403). The top of the connecting base plate (402) is fixedly connected to multiple reinforcing ribs (404) and multiple reinforcing ribs (405). The adjacent sides of the two vertical support plates (401) are fixedly connected to a buffer pad (406). The outer wall of the connecting base plate (402) is provided with a connecting assembly (407).

3. The LNG storage cylinder for a transport vehicle suitable for complex environments according to claim 1, characterized in that: The sealing mechanism (5) includes an extension plate (501), the top of which is fixedly connected to the bottom of the sealing cover (2). An air inlet (502) is provided on the left front side of the extension plate (501), and an air outlet (503) is provided on the right front side of the extension plate (501).

4. The LNG storage cylinder for a transport vehicle suitable for complex environments according to claim 1, characterized in that: The heat exchange mechanism (6) includes multiple reinforcing rings (601), the bottom of each of the multiple reinforcing rings (601) is fixedly connected to the top of two horizontal plates (304), and the inner walls of each of the multiple reinforcing rings (601) are fixedly connected to heat exchangers (602). The interiors of the two heat exchangers (602) are connected to air pipes (603).

5. An LNG storage cylinder for transport vehicles suitable for complex environments according to claim 1, characterized in that: The vibration damping assembly (309) includes multiple damping dampers (3091), the tops of which are fixedly connected to the bottoms of two horizontal plates (304), and the outer walls of the multiple side plates (305) are fixedly connected to two buffer dampers (3092).

6. An LNG storage cylinder for a transport vehicle suitable for complex environments according to claim 2, characterized in that: The connecting assembly (407) includes a plurality of bolts (4071), the outer walls of which are threaded to the outer wall of the connecting base plate (402), and the outer wall of the connecting base plate (402) is provided with a plurality of screw holes (4072).

7. An LNG storage cylinder for a transport vehicle suitable for complex environments according to claim 1, characterized in that: A control panel (7) is fixedly connected to the left side of the sealing cover (2), and a pressure sensor (8) is fixedly connected to the top of the outer shell (1).

8. An LNG storage cylinder for a transport vehicle suitable for complex environments according to claim 1, characterized in that: The outer shell (1) has an inner layer (9) inside, and the inner wall of the outer shell (1) is fixedly connected to an inner liner (10).

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