Safety treatment device for automotive liquid hydrogen storage tank

Abstract

The invention provides a safety treatment device for a vehicle liquid hydrogen storage tank, which comprises a gas phase discharge assembly and a combustion assembly, the gas phase discharge assembly is provided with a gas phase inlet, the gas phase inlet is located in the vehicle liquid hydrogen storage tank, and the gas phase discharge assembly is configured to lead out gaseous hydrogen in the vehicle liquid hydrogen storage tank; the combustion assembly comprises a shell, a combustor, an electric igniter and a power generation module. The shell is provided with an air inlet and a smoke outlet. The combustor is arranged in the combustion area and used for actively combusting gaseous hydrogen guided out by the gas phase exhaust assembly. The electric igniter is connected with the combustor and is used for igniting gaseous hydrogen in the combustor; and the power generation module is connected with the electric igniter, is arranged in the power generation area, and is configured to convert kinetic energy generated by flowing of the gaseous hydrogen exhausted by the gas phase exhaust assembly into electric energy to provide the electric energy for the ignition action of the electric igniter. Active safety treatment is conducted on hydrogen gas in time, combustion accidents are avoided, losses are reduced, and the disaster range is controlled.

Description

Technical Field

[0001] The present invention belongs to the technical field of cryogenic pressure vessels, and in particular, relates to a safe processing device for a vehicle liquid hydrogen storage tank. Background Art

[0002] The application of liquid hydrogen in the civilian field, especially its promotion in the transportation field, is considered to have broad prospects. For example, heavy-duty transport trucks, airplanes, ships and other means of transportation can use liquid hydrogen power to reduce carbon emissions during operation and achieve a longer driving range.

[0003] Liquid hydrogen transport vehicle containers and gas cylinders used as vehicle fuel are subject to overpressure discharge or discharge due to accidents (such as rollovers, collisions, etc.). When a vehicle is in a semi-enclosed space such as a tunnel or underground space, or there are bridges or cables above the discharge pipe, or the discharge port is aimed at important protected objects such as surrounding vehicles, overpressure, emergency discharge, or forced non-discharge may cause secondary accidents, disasters, and losses.

[0004] In order to minimize losses, control the scope of the disaster, and avoid the mixture of hydrogen and air to form an explosion space or other combustion accidents, it is necessary to actively and safely handle hydrogen.

[0005] In view of this, the present invention is proposed. Summary of the invention

[0006] The technical problem to be solved by the present invention is to at least overcome some of the shortcomings of the prior art and provide a safe handling device for a vehicle liquid hydrogen storage tank. The kinetic energy generated by the flow of gaseous hydrogen when it is discharged from the vehicle liquid hydrogen storage tank is converted into electrical energy, which is used to provide electrical energy for the ignition action of the electric igniter, and spontaneous combustion forms ignition to burn the gaseous hydrogen. This can achieve the purpose of actively and safely handling the gaseous hydrogen in a timely manner when an abnormal situation occurs, avoid the mixing of hydrogen and air to form an explosion space or other combustion accidents, reduce losses, and control the scope of the disaster.

[0007] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0008] A safe handling device for a vehicle liquid hydrogen storage tank, comprising:

[0009] A gas phase exhaust component having a gas phase inlet, the gas phase inlet being located inside the vehicle liquid hydrogen storage tank, the gas phase exhaust component being configured to discharge gaseous hydrogen from the vehicle liquid hydrogen storage tank; and

[0010] Combustion assembly, including:

[0011] A shell, the shell comprising a power generation area and a combustion area, wherein the power generation area is communicated with the outlet of the gas phase exhaust assembly, and the combustion area has an air inlet, a flue gas outlet, and a gas outlet communicated with the power generation area;

[0012] A burner, disposed in the combustion area, communicated with the gas port, and used for actively burning the gaseous hydrogen discharged from the gas phase exhaust component;

[0013] an electric igniter, connected to the burner, for igniting the gaseous hydrogen in the burner;

[0014] A power generation module is arranged in the power generation area and connected to the electric igniter. The power generation module is configured to convert the kinetic energy generated by the flow of gaseous hydrogen discharged from the gas phase discharge component into electrical energy to provide electrical energy for the ignition action of the electric igniter.

[0015] In some embodiments, the power generation module comprises:

[0016] a gas-fired wind wheel, arranged in the power generation area and opposite to the outlet of the gas phase exhaust component, the gas-fired wind wheel being capable of rotating under the driving force of the gaseous hydrogen ejected from the outlet of the gas phase exhaust component; and

[0017] A wind turbine generator is arranged in the power generation area, connected to the gas turbine and the electric igniter, and is used to convert the mechanical energy of the rotating shaft of the gas turbine into electrical energy to provide electrical energy for the electric igniter.

[0018] In some embodiments, the outlet of the gas phase exhaust component is provided with a hydrogen nozzle for increasing the kinetic energy of the gaseous hydrogen ejected from the outlet of the gas phase exhaust component.

[0019] In some embodiments, an air fan is also connected to the rotating shaft of the gas impeller. The air fan is located at the air inlet and is used to draw air into the combustion area.

[0020] In some embodiments, the gas phase exhaust assembly comprises:

[0021] a gas phase exhaust pipe, the gas phase exhaust pipe being configured to be disposed inside the vehicle liquid hydrogen storage tank, the inlet of the gas phase exhaust pipe constituting the gas phase inlet, the gas phase exhaust pipe being controllable so that the gas phase inlet remains located in the gas phase region inside the vehicle liquid hydrogen storage tank; and

[0022] A conveying component has one end connected to the gas phase exhaust pipe and the other end constituting the outlet of the gas phase exhaust component.

[0023] In some embodiments, a counterweight is connected to the bottom of the gas phase exhaust pipe, and the weight of the counterweight is greater than the weight of the gas phase exhaust pipe;

[0024] The counterweight is configured so that the bottom of the gas phase exhaust pipe is located downward in the vertical direction, and the gas phase inlet is directed upward in the vertical direction.

[0025] In some embodiments, the conveying assembly includes a first conveying pipe and a second conveying pipe that are connected in sequence, the first conveying pipe is controllably connected to or disconnected from the gas phase exhaust pipe, and the outlet of the second conveying pipe extends to the power generation area;

[0026] Wherein, the first delivery pipe is connected to a reheater for reheating the gaseous hydrogen derived from the interior of the vehicle liquid hydrogen storage tank.

[0027] In some embodiments, the rewarmer is a partition-type heat exchanger, which is connected to the flue gas outlet and is used to rewarm the derived gaseous hydrogen using the heat of the flue gas after the combustion of the gaseous hydrogen.

[0028] In some embodiments, the safety treatment device for the vehicle liquid hydrogen storage tank further includes:

[0029] an abnormality detection unit, configured to be disposed on the vehicle liquid hydrogen storage tank, and used to detect a state of the vehicle liquid hydrogen storage tank;

[0030] Wherein, a controller is provided on the first delivery pipe, and the controller is connected to the abnormal situation detection unit, and is used for controlling the opening and closing of the first delivery pipe and the gas phase exhaust pipe according to the detected state of the vehicle liquid hydrogen storage tank.

[0031] In some embodiments, the abnormal situation detection unit includes at least one of a pressure detection unit, a posture detection unit, and a leakage detection unit;

[0032] Wherein, the pressure detection unit is used to detect the gas pressure in the vehicle liquid hydrogen storage tank;

[0033] The posture detection unit is used to detect the posture of the vehicle liquid hydrogen storage tank;

[0034] The leakage detection unit is used to detect the leakage amount of the vehicle liquid hydrogen storage tank;

[0035] Preferably, the controller comprises:

[0036] A solenoid valve, arranged on the first delivery pipe, for controlling the opening and closing of the first delivery pipe and the gas phase exhaust pipe;

[0037] an analysis module, connected to the abnormal situation detection unit and the solenoid valve, and configured to control the action of the solenoid valve according to the state of the vehicle liquid hydrogen storage tank detected by the abnormal situation detection unit;

[0038] A rechargeable battery module is connected to the solenoid valve and the analysis module, and is used to supply power to the solenoid valve and the analysis module.

[0039] After adopting the above technical scheme, the present invention has the following beneficial effects compared with the prior art.

[0040] 1. The safety handling device for vehicle liquid hydrogen storage tanks provided by the present invention converts the kinetic energy generated by the flow of gaseous hydrogen in the vehicle liquid hydrogen storage tank when it is discharged into electrical energy, which is used to provide electrical energy for the ignition action of the electric igniter, spontaneously ignites, and burns the gaseous hydrogen. When an abnormal situation occurs, the purpose of actively and safely handling the gaseous hydrogen in time can be achieved, so as to avoid the mixing of hydrogen and air to form an explosion space or other combustion accidents, reduce losses, and control the scope of disasters.

[0041] 2. The safe handling device for the vehicle liquid hydrogen storage tank provided by the present invention can ensure that the gaseous hydrogen inside the vehicle liquid hydrogen storage tank can be smoothly discharged when an abnormal situation occurs by controlling the gas phase discharge pipe so that its gas phase inlet port remains located in the gas phase area inside the vehicle liquid hydrogen storage tank.

[0042] 3. The safety handling device for vehicle liquid hydrogen storage tanks provided by the present invention is used to reheat the gaseous hydrogen, increase the temperature of the gaseous hydrogen, and reduce the ignition energy by arranging a reheater on the delivery pipeline for the gaseous hydrogen to be led out, so as to ensure that the electric igniter can smoothly ignite the gaseous hydrogen. Furthermore, the flue gas generated by the combustion in the shell is used to heat the gaseous hydrogen, which can not only achieve the purpose of heating, but also reduce the temperature of the flue gas and reduce the thermal impact of the flue gas emission on the surrounding environment. Furthermore, the speed of the air intake fan changes according to the size of the hydrogen emission flow rate, and the amount of air inhaled changes accordingly, so that the ratio of hydrogen to air in the shell can be controlled within an appropriate range, which can not only help the hydrogen to be effectively burned out, but also avoid the flue gas temperature being too high.

[0043] 4. The safe handling device for vehicle liquid hydrogen storage tanks provided by the present invention integrates an analysis module and a rechargeable battery module on the solenoid valve, wherein the analysis module is used to control the action of the solenoid valve according to the state of the vehicle liquid hydrogen storage tank detected by the abnormal situation detection unit, and the rechargeable battery module is used to power the solenoid valve and the analysis module. This can not only ensure the long-term and stable operation of the solenoid valve, but also ensure that when an abnormal situation occurs, the solenoid valve can promptly open the discharge path of the gaseous hydrogen.

[0044] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the accompanying drawings:

[0046] Figure 1 is a partial structural schematic diagram of a safety treatment device for a vehicle liquid hydrogen storage tank provided according to an exemplary embodiment of the present invention;

[0047] Figure 2 yes Figure 1 A partial enlarged view of the structure in the middle.

[0048] In the figure: 100, vehicle liquid hydrogen storage tank;

[0049] 200, safety handling device; 210, gas phase exhaust component; 211, gas phase exhaust pipe; 212, conveying component; 2121, first conveying pipe; 2122, second conveying pipe; 2123, reheater; 213, counterweight; 220, combustion component; 221, shell; 222, electric igniter; 223, power generation module; 2231, gas wind wheel; 2232, wind turbine; 224, air inlet; 225, flue gas outlet; 226, burner; 227, air fan; 230, controller; 231, solenoid valve; 232, analysis module; 233, rechargeable battery module.

[0050] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0051] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0052] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0053] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] As introduced in the background technology of this application, when vehicles transporting liquid hydrogen are in semi-enclosed spaces such as tunnels and underground spaces, or there are bridges or cables above the discharge pipe, or the discharge port is aimed at important protected objects such as surrounding vehicles, overpressure, emergency discharge or forced non-discharge may cause secondary accidents, disasters and losses. Based on this, the present invention provides a safe handling device for a vehicle liquid hydrogen storage tank, comprising a gas phase exhaust component and a combustion component, the gas phase exhaust component having a gas phase inlet, the gas phase inlet being located inside the vehicle liquid hydrogen storage tank, the gas phase exhaust component being configured to discharge the gaseous hydrogen inside the vehicle liquid hydrogen storage tank; the combustion component comprising a shell, a burner, an electric igniter and a power generation module, the shell comprising a power generation area and a combustion area, wherein the power generation area is connected to the outlet of the gas phase exhaust component, the combustion area having an air inlet, a flue gas outlet and a gas port connected to the power generation area; the burner is arranged in the combustion area, connected to the gas port, and is used to actively burn the gaseous hydrogen discharged from the gas phase exhaust component; the electric igniter is connected to the burner, and is used to ignite the gaseous hydrogen in the burner; the power generation module is arranged in the power generation area, connected to the electric igniter, and the power generation module is configured to convert the kinetic energy generated by the flow of gaseous hydrogen discharged from the gas phase exhaust component into electrical energy, so as to provide electrical energy for the ignition action of the electric igniter.

[0055] Through the above scheme, it can be achieved that when an abnormal situation occurs, the electric igniter will spontaneously ignite and burn the gaseous hydrogen, and the gaseous hydrogen can be actively and safely handled in time to avoid the mixing of hydrogen and air to form an explosion space or other combustion accidents, reduce losses, and control the scope of the disaster.

[0056] The preferred technical solution of the safe treatment device for the vehicle liquid hydrogen storage tank provided by the present invention is described in detail below with reference to the accompanying drawings.

[0057] Figure 1 is a schematic structural diagram of a safety treatment device 200 for a vehicle liquid hydrogen storage tank 100 provided in accordance with an exemplary embodiment of the present invention, Figure 2 yes Figure 1It should be noted that the shapes, proportions, sizes and orientations of the components in the figure are only for illustration purposes and are used to help understand the present invention. They are not intended to specifically limit the shapes, proportions, sizes and orientations of the components of the present invention. After understanding the teachings of the inventor, those skilled in the art can implement the invention based on existing technical knowledge and experience.

[0058] like Figure 1 and Figure 2 As shown, the safety processing device 200 includes a gas phase exhaust component 210 and a combustion component 220. The gas phase exhaust component 210 has a gas phase inlet, which is located inside the vehicle liquid hydrogen storage tank 100, and the gas phase exhaust component 210 is configured to export the gaseous hydrogen inside the vehicle liquid hydrogen storage tank 100. The combustion component 220 includes a shell 221, a burner 226, an electric igniter 222 and a power generation module 223. The shell 221 includes a power generation area and a combustion area, wherein the power generation area is connected to the outlet of the gas phase exhaust component 210, and the combustion area has an air inlet 224, a flue gas outlet 225 and a gas port connected to the power generation area. The burner 226 is arranged in the combustion area, connected to the gas port, and is used to actively burn the gaseous hydrogen exported from the gas phase exhaust component 210. The electric igniter 222 is connected to the burner 226 to ignite the gaseous hydrogen in the burner 226. The power generation module 223 is disposed in the power generation area and connected to the electric igniter 222 . The power generation module 223 is configured to convert the kinetic energy generated by the flow of gaseous hydrogen discharged from the gas phase discharge component 210 into electrical energy to provide electrical energy for the ignition action of the electric igniter 222 .

[0059] It should be explained here that the vehicle liquid hydrogen storage tank 100 generally uses multi-layer insulation materials and vacuum technology to reduce heat exchange and maintain the low temperature state of liquid hydrogen. Common insulation materials include multi-layer insulation materials and vacuum layers. These designs can effectively reduce the impact of external heat on liquid hydrogen, thereby reducing evaporation.

[0060] However, the boiling point of liquid hydrogen is very low, about -253°C, and even at room temperature it will gradually evaporate into gaseous hydrogen due to the influence of ambient temperature. Therefore, liquid hydrogen will evaporate due to slight changes in temperature during transportation and storage, resulting in gaseous hydrogen inside the vehicle liquid hydrogen storage tank 100.

[0061] In addition, during the filling and releasing process of the vehicle liquid hydrogen storage tank 100, the pressure fluctuation may also cause part of the liquid hydrogen to evaporate into gaseous hydrogen.

[0062] Therefore, in order to ensure the safe operation of the vehicle liquid hydrogen storage tank 100, a certain safety margin will be considered during the design, that is, there is a certain gas phase area inside the vehicle liquid hydrogen storage tank 100, and the gas phase area is generally located in the top space inside the vehicle liquid hydrogen storage tank 100.

[0063] When the vehicle liquid hydrogen storage tank 100 encounters an abnormal situation during transportation or storage, in order to prevent this part of the gaseous hydrogen in the gas phase area from mixing with the air to form an explosion space or other combustion accidents, the present invention guides this part of the gaseous hydrogen out of the vehicle liquid hydrogen storage tank 100 and actively burns it.

[0064] Specifically, since the gas phase pressure in the vehicle liquid hydrogen storage tank 100 is relatively high, when the gaseous hydrogen is discharged from the vehicle liquid hydrogen storage tank 100, the flow of the gaseous hydrogen can generate a certain amount of kinetic energy, and the power generation module 223 converts the kinetic energy generated by the flow of the gaseous hydrogen into electrical energy to supply power to the electric igniter 222. The electric igniter 222 can ignite when it is powered, so that the gaseous hydrogen burns in the burner 226 located in the combustion area.

[0065] As an example, the electric igniter 222 may be a pulse igniter, which requires less power. The electric energy generated by the power generation module 223 is sufficient to generate a high-voltage electric spark to ignite the gaseous hydrogen.

[0066] In some embodiments, a fireproof partition is provided in the housing 221 to separate the space in the housing 221 into a power generation area and a combustion area. The power generation module 223 is provided in the power generation area, and the outlet of the gas phase exhaust assembly 210 is connected to the power generation area. The air inlet 224 and the smoke outlet 225 are both provided in the combustion area, the burner 226 is installed on the fireproof partition, and a gas port connecting the power generation area and the burner 226 is provided on the fireproof partition. The electric igniter 222 is provided in the burner 226 to ignite the gaseous hydrogen in the burner 226.

[0067] It is understandable that the housing 221 itself should also be made of fireproof material. Alternatively, the inner wall of the housing 221 is pasted with fireproof material.

[0068] Further, the power generation module 223 includes a gas wind wheel 2231 and a wind generator 2232. The gas wind wheel 2231 is arranged in the power generation area and is opposite to the outlet of the gas phase exhaust component 210. The gas wind wheel 2231 can rotate under the drive of the gaseous hydrogen ejected from the outlet of the gas phase exhaust component 210. The wind generator 2232 is arranged in the power generation area and is connected to the gas wind wheel 2231 and the electric igniter 222, and is used to convert the mechanical energy of the rotating shaft of the gas wind wheel 2231 into electrical energy, and provide electrical energy for the electric igniter 222.

[0069] As an example, a support is provided in the power generation area, and the gas wind wheel 2231 includes a rotating shaft and a plurality of blades arranged along the circumference of the rotating shaft, and the rotating shaft is rotatably connected to the support. The plurality of blades drive the rotating shaft to rotate relative to the support under the drive of the gaseous hydrogen, so that the power generation module 223 converts the kinetic energy generated by the flow of the gaseous hydrogen into electrical energy.

[0070] Optionally, the gas wind wheel 2231 adopts a turbine structure.

[0071] It should be pointed out that the wind turbine 2232 can be a commonly used micro wind turbine, and the present invention will not elaborate on the structure of the wind turbine 2232 here.

[0072] In some embodiments, the outlet of the gas phase exhaust component 210 is provided with a hydrogen nozzle (not shown) for increasing the kinetic energy of the gaseous hydrogen ejected from the outlet of the gas phase exhaust component 210 .

[0073] In detail, the hydrogen nozzle is located in the power generation area, and the hydrogen nozzle faces the above-mentioned gas wind wheel 2231. The hydrogen nozzle adopts a contraction type nozzle to increase the outlet velocity of the gaseous hydrogen, thereby increasing the kinetic energy of the gaseous hydrogen ejected from the outlet of the gas phase discharge component 210. This can ensure that the generator can stably output electrical energy and enable the electric igniter 222 to ignite smoothly.

[0074] Furthermore, an air fan 227 is connected to the rotating shaft of the gas impeller 2231. The air fan 227 is located at the air inlet 224 and is used to inhale air into the combustion area.

[0075] In detail, the air fan 227 is located at the air inlet 224 of the combustion area. When the gas impeller 2231 rotates, the air fan 227 is also driven to rotate, and air is sucked into the combustion area to ensure the oxygen supply required for the combustion of gaseous hydrogen. The air fan 227 can adopt a structure commonly used in the art, and the present invention does not limit this. It should be noted that the air fan 227 can be located inside the housing 221 or outside the housing 221.

[0076] In addition, when the gas impeller 2231 rotates, it drives the air fan 227 to rotate, so that the rotation speed of the air fan 227 changes according to the size of the hydrogen emission flow rate, and the amount of inhaled air changes accordingly, so that the ratio of gaseous hydrogen to air in the combustion area can be controlled within an appropriate range, which can not only help the gaseous hydrogen to be effectively burned, but also avoid the flue gas temperature being too high.

[0077] In some embodiments, the gas phase exhaust component 210 includes a gas phase exhaust pipe 211 and a conveying component 212. The gas phase exhaust pipe 211 is configured to be disposed inside the vehicle liquid hydrogen storage tank 100, and the inlet of the gas phase exhaust pipe 211 constitutes the gas phase inlet, and the gas phase exhaust pipe 211 can be controlled so that the gas phase inlet remains located in the gas phase region inside the vehicle liquid hydrogen storage tank 100. One end of the conveying component 212 is in communication with the gas phase exhaust pipe 211, and the other end constitutes the outlet of the gas phase exhaust component 210.

[0078] In the above scheme, by enabling the gas phase exhaust pipe 211 to be controlled so that its gas phase inlet port always remains in the gas phase area inside the vehicle liquid hydrogen storage tank 100, it can be ensured that when an abnormal situation occurs, the gaseous hydrogen inside the vehicle liquid hydrogen storage tank 100 can be smoothly discharged, so that the pressure inside the vehicle liquid hydrogen storage tank 100 can be effectively controlled more quickly.

[0079] Optionally, refer to Figure 1 As shown, a counterweight 213 is connected to the bottom of the gas phase exhaust pipe 211, and the weight of the counterweight 213 is greater than the weight of the gas phase exhaust pipe 211; the counterweight 213 is configured to make the bottom of the gas phase exhaust pipe 211 located at the bottom in the vertical direction, and make the gas phase inlet face upward in the vertical direction. The counterweight 213 can adopt a block structure.

[0080] In detail, the counterweight 213 is connected to the bottom of the gas phase exhaust pipe 211, which is equivalent to moving the center of gravity of the gas phase exhaust pipe 211 downward to make it in an eccentric state. When the gas phase exhaust pipe 211 is in a balanced state, the upper gas phase inlet of the gas phase exhaust pipe 211 faces upward in the vertical direction, and its center of gravity and the counterweight 213 are on the same vertical line. When the gas phase exhaust pipe 211 is in an unbalanced state, its center of gravity and the counterweight 213 cannot be on the same vertical line. Then, under the action of the eccentric force, the gas phase exhaust pipe 211 will quickly return to a balanced state, so that the bottom of the gas phase exhaust pipe 211 is located at the bottom in the vertical direction, and the gas phase inlet faces upward in the vertical direction.

[0081] In some embodiments, the delivery assembly 212 includes a first delivery pipe 2121 and a second delivery pipe 2122 that are connected in sequence, the first delivery pipe 2121 is controllably connected to or disconnected from the gas phase discharge pipe 211, and the outlet of the second delivery pipe 2122 extends to the power generation area to provide gaseous hydrogen. The first delivery pipe 2121 is connected to a reheater 2123 for reheating the gaseous hydrogen derived from the inside of the vehicle liquid hydrogen storage tank 100.

[0082] Furthermore, the rewarmer 2123 is a partition-type heat exchanger, and the rewarmer 2123 is connected to the flue gas outlet 225, and is used to rewarm the derived gaseous hydrogen by utilizing the heat of the flue gas after the combustion of the gaseous hydrogen.

[0083] In the above scheme, by arranging a reheater 2123 on the delivery pipeline for the gaseous hydrogen to reheat the gaseous hydrogen, the low-temperature gaseous hydrogen can be heated to a temperature that is easy to ignite, ensuring that the electric igniter 222 can smoothly ignite the gaseous hydrogen. Furthermore, by using the flue gas generated by the combustion in the shell 221 to heat the gaseous hydrogen, not only can the purpose of heating the low-temperature hydrogen be achieved, but also the temperature of the flue gas can be reduced, reducing the thermal impact of the flue gas emission on the surrounding environment.

[0084] It should be noted here that the burner 226 should be located below the rewarmer 2123, so that the smoke after combustion in the housing 221 can be discharged upward and enter the rewarmer 2123. However, it can be understood that the burner 226 should be located below the rewarmer 2123 here does not mean that the burner 226 is located directly below the rewarmer 2123, but only that the burner 226 and the rewarmer 2123 have a certain height difference in the vertical direction. For example, the rewarmer 2123 is located obliquely above the burner 226.

[0085] In some embodiments, the safety processing device 200 further includes an abnormal situation detection unit (not shown), which is configured to be disposed on the vehicle liquid hydrogen storage tank 100 and is used to detect the state of the vehicle liquid hydrogen storage tank 100. A controller 230 is disposed on the first delivery pipe 2121, and the controller 230 is connected to the abnormal situation detection unit and is used to control the opening and closing of the first delivery pipe 2121 and the gas phase discharge pipe 211 according to the detected state of the vehicle liquid hydrogen storage tank 100.

[0086] Optionally, the abnormal situation detection unit includes at least one of a pressure detection unit, a posture detection unit, and a leakage detection unit; wherein the pressure detection unit is used to detect the gas pressure in the vehicle liquid hydrogen storage tank 100; the posture detection unit is used to detect the posture of the vehicle liquid hydrogen storage tank 100; and the leakage detection unit is used to detect the leakage amount of the vehicle liquid hydrogen storage tank 100.

[0087] In detail, the controller 230 is connected to the abnormal situation detection unit, and determines whether the vehicle liquid hydrogen storage tank 100 has abnormal situations such as gas overpressure, gas leakage, tank dumping, vehicle collision, etc.

[0088] As an example, the pressure detection unit may be a pressure transmitter to detect whether the vehicle liquid hydrogen storage tank 100 has gas overpressure. The attitude detection unit may be a gyroscope to detect whether the vehicle liquid hydrogen storage tank 100 has tank dumping, vehicle collision, etc. The leakage detection unit may be an ultrasonic detection unit, a gas concentration detection unit, an infrared sensor, or a temperature sensor to detect whether the vehicle liquid hydrogen storage tank 100 has gas leakage.

[0089] Among them, the ultrasonic detection unit can detect the ultrasonic wave generated by the leakage of pressurized hydrogen. When the controller 230 determines that the detected sound intensity is higher than the predetermined sound pressure level, the connection between the first delivery pipe 2121 and the gas phase exhaust pipe 211 is controlled. The gas concentration detection unit monitors the hydrogen concentration. When hydrogen leaks, the controller 230 controls the connection between the first delivery pipe 2121 and the gas phase exhaust pipe 211 when it determines that hydrogen accumulation has occurred. The infrared sensor can monitor the changes in infrared radiation when hydrogen leaks. When hydrogen leaks, the volatilization of low-temperature gas will affect the surrounding infrared radiation characteristics. By detecting these changes, it can be determined whether a leak has occurred. The temperature sensor can be installed on the surface of the vehicle liquid hydrogen storage tank 100 to monitor whether the temperature has changed abnormally. When a leak occurs, the surrounding temperature rises or falls due to the volatilization of hydrogen. By detecting these temperature changes, it can be determined whether a leak has occurred.

[0090] It should be pointed out that the above detection unit or sensor can adopt the structure commonly used in the art.

[0091] Preferably, refer to Figure 2 As shown, the controller 230 includes a solenoid valve 231, an analysis module 232 and a rechargeable battery module 233. The solenoid valve 231 is arranged on the first delivery pipe 2121, and is used to control the on-off of the first delivery pipe 2121 and the gas phase exhaust pipe 211; the analysis module 232 is connected to the abnormal situation detection unit and the solenoid valve 231, and is used to control the action of the solenoid valve 231 according to the state of the vehicle liquid hydrogen storage tank 100 detected by the abnormal situation detection unit; the rechargeable battery module 233 is connected to the solenoid valve 231 and the analysis module 232, and is used to supply power to the solenoid valve 231 and the analysis module 232.

[0092] In the above solution, the analysis module 232 and the rechargeable battery module 233 are integrated on the solenoid valve 231, which can not only ensure the long-term stable operation of the solenoid valve 231, but also ensure that the solenoid valve 231 can promptly open the discharge path of the gaseous hydrogen when an abnormal situation occurs.

[0093] As an example, during the transportation of the vehicle, the rechargeable battery module 233 uses solar energy and wind energy as a charging source.

[0094] In some embodiments, a manual switch control function is added to the solenoid valve 231, so that when the solenoid valve 231 is powered off, the staff can still control the opening and closing of the first delivery pipe 2121 and the gas phase exhaust pipe 211 through a manual device.

[0095] The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modify the technical contents suggested above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the solution of the present invention.

Claims

1. A safe handling device for a vehicle liquid hydrogen storage tank, characterized in that: include: A gas phase discharge component having a gas phase inlet, the gas phase inlet being located inside the vehicle liquid hydrogen storage tank, the gas phase discharge component being configured to discharge gaseous hydrogen from the vehicle liquid hydrogen storage tank; as well as Combustion assembly, including: A shell, the shell comprising a power generation area and a combustion area, wherein the power generation area is communicated with the outlet of the gas phase exhaust assembly, and the combustion area has an air inlet, a flue gas outlet, and a gas outlet communicated with the power generation area; A burner, disposed in the combustion area, communicated with the gas port, and used for actively burning the gaseous hydrogen discharged from the gas phase exhaust component; an electric igniter, connected to the burner, for igniting the gaseous hydrogen in the burner; A power generation module is arranged in the power generation area and connected to the electric igniter. The power generation module is configured to convert the kinetic energy generated by the flow of gaseous hydrogen discharged from the gas phase discharge component into electrical energy to provide electrical energy for the ignition action of the electric igniter.

2. The safe handling device for a vehicle liquid hydrogen storage tank according to claim 1 is characterized in that: The power generation module comprises: a gas-fired wind wheel, arranged in the power generation area and opposite to the outlet of the gas phase exhaust component, the gas-fired wind wheel being capable of rotating under the driving force of the gaseous hydrogen ejected from the outlet of the gas phase exhaust component; and A wind turbine generator is arranged in the power generation area, connected to the gas turbine and the electric igniter, and is used to convert the mechanical energy of the rotating shaft of the gas turbine into electrical energy to provide electrical energy for the electric igniter.

3. The safe handling device for a vehicle liquid hydrogen storage tank according to claim 2 is characterized in that: The outlet of the gas phase exhaust component is provided with a hydrogen nozzle for increasing the kinetic energy of the gaseous hydrogen ejected from the outlet of the gas phase exhaust component.

4. The safe handling device for a vehicle liquid hydrogen storage tank according to claim 2, characterized in that: An air fan is also connected to the rotating shaft of the gas impeller. The air fan is located at the air inlet and is used to inhale air into the combustion area.

5. The safe handling device for a vehicle liquid hydrogen storage tank according to any one of claims 1 to 4, characterized in that: The gas phase exhaust component comprises: a gas phase exhaust pipe, the gas phase exhaust pipe being configured to be disposed inside the vehicle liquid hydrogen storage tank, the inlet of the gas phase exhaust pipe constituting the gas phase inlet, the gas phase exhaust pipe being controllable so that the gas phase inlet remains located in the gas phase region inside the vehicle liquid hydrogen storage tank; and A conveying component has one end connected to the gas phase exhaust pipe and the other end constituting the outlet of the gas phase exhaust component.

6. The safe handling device for a vehicle liquid hydrogen storage tank according to claim 5, characterized in that: A counterweight is connected to the bottom of the gas phase exhaust pipe, and the weight of the counterweight is greater than the weight of the gas phase exhaust pipe; The counterweight is configured so that the bottom of the gas phase exhaust pipe is located downward in the vertical direction, and the gas phase inlet is directed upward in the vertical direction.

7. The safe handling device for a vehicle liquid hydrogen storage tank according to claim 5, characterized in that: The conveying assembly comprises a first conveying pipe and a second conveying pipe which are connected in sequence, the first conveying pipe is controllably connected to or disconnected from the gas phase exhaust pipe, and the outlet of the second conveying pipe extends to the power generation area; Wherein, the first delivery pipe is connected to a reheater for reheating the gaseous hydrogen derived from the interior of the vehicle liquid hydrogen storage tank.

8. The safe handling device for a vehicle liquid hydrogen storage tank according to claim 7, characterized in that: The rewarmer is a partition-type heat exchanger, which is connected to the flue gas outlet and is used to rewarm the derived gaseous hydrogen by utilizing the heat of the flue gas after the combustion of the gaseous hydrogen.

9. The safe handling device for a vehicle liquid hydrogen storage tank according to claim 7, characterized in that: Also includes: an abnormality detection unit, configured to be disposed on the vehicle liquid hydrogen storage tank, and used to detect a state of the vehicle liquid hydrogen storage tank; Wherein, a controller is provided on the first delivery pipe, and the controller is connected to the abnormal situation detection unit, and is used for controlling the opening and closing of the first delivery pipe and the gas phase exhaust pipe according to the detected state of the vehicle liquid hydrogen storage tank.

10. The safe handling device for a vehicle liquid hydrogen storage tank according to claim 9, characterized in that: The abnormal situation detection unit includes at least one of a pressure detection unit, a posture detection unit, and a leakage detection unit; Wherein, the pressure detection unit is used to detect the gas pressure in the vehicle liquid hydrogen storage tank; The posture detection unit is used to detect the posture of the vehicle liquid hydrogen storage tank; The leakage detection unit is used to detect the leakage amount of the vehicle liquid hydrogen storage tank; Preferably, the controller comprises: A solenoid valve, arranged on the first delivery pipe, for controlling the opening and closing of the first delivery pipe and the gas phase exhaust pipe; an analysis module, connected to the abnormal situation detection unit and the solenoid valve, and configured to control the action of the solenoid valve according to the state of the vehicle liquid hydrogen storage tank detected by the abnormal situation detection unit; A rechargeable battery module is connected to the solenoid valve and the analysis module, and is used to supply power to the solenoid valve and the analysis module.

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