A safety processing device for a liquid hydrogen storage tank for vehicles

Abstract

The application provides a kind of safety processing device of vehicle liquid hydrogen storage tank, including gas phase discharge component and combustion component, gas phase discharge component has gas phase inlet, gas phase inlet is located inside vehicle liquid hydrogen storage tank, gas phase discharge component is configured to export gaseous hydrogen in vehicle liquid hydrogen storage tank inside;Combustion component includes shell, burner, electric igniter and power generation module, shell has air inlet and flue gas outlet;Burner is set in combustion area, for actively burning gaseous hydrogen exported by gas phase discharge component;Electric igniter is connected with burner, for igniting gaseous hydrogen in burner;Power generation module is connected with electric igniter, power generation module is set in power generation area, configured to convert kinetic energy generated by gaseous hydrogen flow discharged by gas phase discharge component into electric energy, provide electric energy for the ignition action of electric igniter.The application actively and safely processes gaseous hydrogen, avoids combustion accident, reduces loss, and controls disaster range.

Description

Technical Field

[0001] The present invention belongs to the technical field of cryogenic pressure vessels, and in particular relates to a safety treatment 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 containers and gas cylinders used as vehicle fuel are subject to overpressure discharge or the need to discharge due to accidents (such as rollovers and collisions). When vehicles are in semi-enclosed spaces such as tunnels and underground spaces, or when discharge pipes are located above bridges or cables, or when the discharge port faces important protected objects such as surrounding vehicles, overpressure, emergency discharge, or forced non-discharge can all lead to 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 very 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 overcome at least some of the shortcomings of the existing technology and provide a safe handling device for vehicle liquid hydrogen storage tanks. The device converts the kinetic energy generated by the flow of gaseous hydrogen when it is discharged from the vehicle liquid hydrogen storage tank into electrical energy, which is used to provide electrical energy for the ignition action of the electric igniter. Spontaneous combustion forms ignition and burns the gaseous hydrogen. This can achieve the purpose of active and safe handling of 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 safety treatment device for a vehicle liquid hydrogen storage tank, comprising:

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

[0010] Combustion assembly, including:

[0011] a housing, the housing 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 port communicated with the power generation area;

[0012] a burner, disposed in the combustion region and in communication with the gas port, for actively burning the gaseous hydrogen discharged from the gas phase exhaust assembly;

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

[0014] A power generation module is provided 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 turbine, disposed in the power generation area and opposite to the outlet of the gas phase exhaust assembly, the gas turbine being capable of rotating under the driving force of the gaseous hydrogen ejected from the outlet of the gas phase exhaust assembly; and

[0017] A wind turbine generator is arranged in the power generation area and 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 further connected to the rotating shaft of the gas turbine. 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, and 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] The conveying component has one end connected to the gas phase exhaust pipe and the other end forming 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 such that the bottom of the gas phase exhaust pipe is located vertically downward, and the gas phase inlet is directed vertically upward.

[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] The first delivery pipe is connected to a reheater for reheating the gaseous hydrogen discharged 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 a 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 status of the vehicle liquid hydrogen storage tank;

[0030] A controller is provided on the first delivery pipe, and the controller is connected to the abnormal situation detection unit, and is used to control 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, provided 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 abnormality detection unit and the solenoid valve, and configured to control the operation of the solenoid valve according to the state of the vehicle liquid hydrogen storage tank detected by the abnormality 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 solution, the present invention has the following beneficial effects compared with the prior art.

[0040] 1. The safety treatment device for vehicle liquid hydrogen storage tanks provided by the present invention converts the kinetic energy generated by the flow of gaseous hydrogen when it is discharged from the vehicle liquid hydrogen storage tank into electrical energy, which is used to provide electrical energy for the ignition action of the electric igniter, spontaneously combusts to form ignition, and burns the gaseous hydrogen. It can achieve the purpose of active and safe treatment of the gaseous hydrogen in a timely manner when abnormal situations occur, 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.

[0041] 2. The safety handling device for vehicle liquid hydrogen storage tanks 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 exhaust pipe so that its gas phase inlet remains located in the gas phase area inside the vehicle liquid hydrogen storage tank.

[0042] 3. The safety treatment device for the vehicle liquid hydrogen storage tank provided by the present invention is used to reheat the gaseous hydrogen by arranging a reheater on the delivery pipeline for the gaseous hydrogen, thereby increasing the temperature of the gaseous hydrogen and reducing the ignition energy, 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 not only achieves the purpose of heating, but also reduces the temperature of the flue gas and reduces 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 burn out effectively, but also avoid the flue gas temperature being too high.

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

[0044] The specific embodiments of the present invention will be described in further detail below with reference to 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 undue limitation of the present invention. Obviously, the drawings described below are only some embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without inventive effort. 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 assembly; 211. Gas phase exhaust pipe; 212. Conveying assembly; 2121. First conveying pipe; 2122. Second conveying pipe; 2123. Rewarmer; 213. Counterweight; 220. Combustion assembly; 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 rather 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 terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0053] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0054] As described in the background technology of this application, when a vehicle transporting liquid hydrogen is in a semi-enclosed space such as a tunnel or underground space, or there is a bridge or cable 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 by 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 is configured to convert the kinetic energy generated by the flow of gaseous hydrogen discharged by the gas phase exhaust component into electrical energy, thereby providing electrical energy for the ignition action of the electric igniter.

[0055] Through the above scheme, when an abnormal situation occurs, the electric igniter can spontaneously combust to form ignition and burn gaseous hydrogen, and the gaseous hydrogen can be actively and safely handled in a timely manner 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 vehicle liquid hydrogen storage tanks provided by the present invention is described in detail below with reference to the accompanying drawings.

[0057] Figure 1 1 is a schematic structural diagram of a safety treatment device 200 for a vehicle liquid hydrogen storage tank 100 according to an exemplary embodiment of the present invention. Figure 2 yes Figure 1A partial enlarged view of the structure at point A in FIG. It should be noted that the shapes, proportions, dimensions, and orientations of the components in the figure are merely illustrative, intended to facilitate understanding of the present invention, and are not intended to limit the shapes, proportions, dimensions, and orientations of the components of the present invention. Those skilled in the art, after understanding the inventors' teachings, will be able to implement the invention based on their existing technical knowledge and experience.

[0058] like Figure 1 and Figure 2 As shown, the safety processing device 200 includes a gas phase exhaust assembly 210 and a combustion assembly 220. The gas phase exhaust assembly 210 has a gas phase inlet located inside the vehicle liquid hydrogen storage tank 100. The gas phase exhaust assembly 210 is configured to discharge the gaseous hydrogen inside the vehicle liquid hydrogen storage tank 100. The combustion assembly 220 includes a housing 221, a burner 226, an electric igniter 222, and a power generation module 223. The housing 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 assembly 210. The combustion area has an air inlet 224, a flue gas outlet 225, and a gas outlet connected to the power generation area. The burner 226 is disposed in the combustion area and is connected to the gas outlet for actively burning the gaseous hydrogen discharged from the gas phase exhaust assembly 210. The electric igniter 222 is connected to the burner 226 for igniting the gaseous hydrogen in the burner 226. The power generation module 223 is arranged 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's important to note that vehicle-use liquid hydrogen storage tanks 100 typically utilize multiple layers of insulation and vacuum technology to minimize heat exchange and maintain a low-temperature state for the liquid hydrogen. Common insulation materials include multiple layers of insulation and vacuum layers, which effectively reduce the impact of external heat on the liquid hydrogen, thereby minimizing evaporation.

[0060] However, liquid hydrogen has a very low boiling point of approximately -253°C, and even at room temperature, it will gradually evaporate into gaseous hydrogen due to the influence of the ambient temperature. Therefore, liquid hydrogen will evaporate due to slight temperature changes during transportation and storage, resulting in the formation of 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, pressure fluctuations 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 to say, 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-use 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-use liquid hydrogen storage tank 100 and actively burns it.

[0064] Specifically, due to the high gas pressure in the vehicle-used liquid hydrogen storage tank 100, when the gaseous hydrogen is discharged from the vehicle-used liquid hydrogen storage tank 100, the flow of the gaseous hydrogen can generate a certain amount of kinetic energy. The power generation module 223 converts the kinetic energy generated by the flow of the gaseous hydrogen into electrical energy to power the electric igniter 222. When powered, the electric igniter 222 can ignite, causing the gaseous hydrogen to burn 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 within the housing 221, separating the space within the housing 221 into a power generation area and a combustion area. The power generation module 223 is located 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 flue gas outlet 225 are both located in the combustion area. The burner 226 is mounted on the fireproof partition, which has a gas port connecting the power generation area and the burner 226. An 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] Furthermore, the power generation module 223 includes a gas turbine 2231 and a wind turbine 2232. The gas turbine 2231 is located in the power generation area and faces the outlet of the gas phase exhaust assembly 210. The gas turbine 2231 is driven to rotate by the gaseous hydrogen ejected from the outlet of the gas phase exhaust assembly 210. The wind turbine 2232 is located in the power generation area and connected to the gas turbine 2231 and the electric igniter 222. It is configured to convert the mechanical energy of the rotating shaft of the gas turbine 2231 into electrical energy, thereby providing electrical energy for the electric igniter 222.

[0069] As an example, a support is provided in the power generation area. The gas turbine 2231 includes a rotating shaft and multiple blades arranged circumferentially along the shaft. The shaft is rotatably connected to the support. Driven by the gaseous hydrogen, the multiple blades rotate the shaft relative to the support, allowing the power generation module 223 to convert 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 noted 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] Specifically, the hydrogen nozzle is located in the power generation area, facing the aforementioned gas turbine 2231. The hydrogen nozzle is a convergent nozzle, which increases the exit velocity of the gaseous hydrogen, thereby increasing the kinetic energy of the gaseous hydrogen ejected from the outlet of the gas phase exhaust assembly 210. This ensures stable power output from the generator and smooth ignition of the electric igniter 222.

[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] Specifically, air fan 227 is located at the air inlet 224 of the combustion area. Rotation of the gas impeller 2231 also drives air fan 227, drawing air into the combustion area and ensuring the oxygen supply required for the combustion of gaseous hydrogen. Air fan 227 can employ a commonly used structure in the art, and the present invention is not limited thereto. It should be noted that air fan 227 can be located inside 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 assembly 210 includes a gas phase exhaust pipe 211 and a delivery assembly 212. The gas phase exhaust pipe 211 is configured to be disposed inside the vehicle liquid hydrogen storage tank 100. The inlet of the gas phase exhaust pipe 211 constitutes the gas phase inlet. 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 delivery assembly 212 is in communication with the gas phase exhaust pipe 211, and the other end constitutes the outlet of the gas phase exhaust assembly 210.

[0078] In the above scheme, by controlling the gas phase exhaust pipe 211 so that its gas phase inlet is always kept 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. The weight of the counterweight 213 is greater than the weight of the gas phase exhaust pipe 211. The counterweight 213 is configured to position the bottom of the gas phase exhaust pipe 211 vertically downward and the gas phase inlet toward the vertically upward. The counterweight 213 can be a block-shaped structure.

[0080] Specifically, connecting the counterweight 213 to the bottom of the gas-phase exhaust pipe 211 is equivalent to shifting the center of gravity of the gas-phase exhaust pipe 211 downward, placing it in an eccentric state. When the gas-phase exhaust pipe 211 is in a balanced state, the gas-phase inlet at the top of the gas-phase exhaust pipe 211 faces vertically upward, and its center of gravity and the counterweight 213 are aligned 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 are not aligned 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, with the bottom of the gas-phase exhaust pipe 211 located vertically downward and the gas-phase inlet facing vertically upward.

[0081] In some embodiments, the delivery assembly 212 includes a first delivery pipe 2121 and a second delivery pipe 2122, which are connected in sequence. The first delivery pipe 2121 is controllably connected to or disconnected from the gas phase exhaust pipe 211. 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 discharged from 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 gaseous hydrogen discharged by utilizing the heat of the flue gas after the combustion of the gaseous hydrogen.

[0083] In the above scheme, a reheater 2123 is provided on the gaseous hydrogen delivery pipeline to reheat the gaseous hydrogen. This allows the low-temperature gaseous hydrogen to be heated to a temperature that facilitates ignition, ensuring that the electric igniter 222 can successfully ignite the gaseous hydrogen. Furthermore, by utilizing the flue gas generated by combustion within the housing 221 to heat the gaseous hydrogen, this not only achieves the goal of heating the low-temperature hydrogen but also reduces the flue gas temperature, thereby reducing the thermal impact of flue gas emissions on the surrounding environment.

[0084] It should be noted that the burner 226 should be located below the rewarmer 2123 to ensure that the flue gas after combustion in the housing 221 can be discharged upward and enter the rewarmer 2123. However, it should be understood that the burner 226 being located below the rewarmer 2123 does not necessarily mean that the burner 226 is located directly below the rewarmer 2123. Instead, it is sufficient that there is a certain vertical height difference between the burner 226 and the rewarmer 2123. For example, the rewarmer 2123 can be located diagonally above the burner 226.

[0085] In some embodiments, the safety processing device 200 further includes an abnormality detection unit (not shown), which is configured to be disposed on the vehicle liquid hydrogen storage tank 100 and is used to detect the status of the vehicle liquid hydrogen storage tank 100. A controller 230 is disposed on the first delivery pipe 2121 and is connected to the abnormality detection unit to control the connection and disconnection between the first delivery pipe 2121 and the gas phase discharge pipe 211 based on the detected status 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 is experiencing gas overpressure. The posture detection unit may be a gyroscope to detect whether the vehicle liquid hydrogen storage tank 100 has tipped over or collided with the vehicle. The leak 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 is leaking.

[0089] Among them, the ultrasonic detection unit can detect ultrasonic waves 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, it controls the conduction between the first delivery pipe 2121 and the gas phase exhaust pipe 211. The gas concentration detection unit monitors the hydrogen concentration. When hydrogen leaks, the controller 230 controls the conduction 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. A 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 noted that the above-mentioned detection unit or sensor can adopt a structure commonly used in this field.

[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 provided on the first delivery pipe 2121 and is used to control the connection and disconnection between the first delivery pipe 2121 and the gas phase exhaust pipe 211. The analysis module 232 is connected to the abnormality detection unit and the solenoid valve 231 and is used to control the operation of the solenoid valve 231 based on the status of the vehicle liquid hydrogen storage tank 100 detected by the abnormality detection unit. The rechargeable battery module 233 is connected to the solenoid valve 231 and the analysis module 232 and is used to power 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 not only ensures the long-term and stable operation of the solenoid valve 231, but also ensures that when an abnormal situation occurs, the solenoid valve 231 can promptly open the discharge path of the gaseous hydrogen.

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

[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 description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above in terms of a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with this patent can make slight changes or modifications to equivalent embodiments using the above technical content without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the solution of the present invention.

Claims

1. A safety treatment device for a vehicle liquid hydrogen storage tank, characterized in that: include: A gas phase discharge assembly having a gas phase inlet, the gas phase inlet being located inside the vehicle liquid hydrogen storage tank, the gas phase discharge assembly being configured to discharge gaseous hydrogen from the vehicle liquid hydrogen storage tank; as well as Combustion assembly, including: a housing, the housing 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 port communicated with the power generation area; a burner, disposed in the combustion region and in communication with the gas port, for actively burning the gaseous hydrogen discharged from the gas phase exhaust assembly; an electric igniter, connected to the burner, for igniting the gaseous hydrogen in the burner; A power generation module, disposed in the power generation area and connected to the electric igniter, configured to convert kinetic energy generated by the flow of gaseous hydrogen discharged from the gas phase discharge assembly into electrical energy to provide electrical energy for the ignition action of the electric igniter; comprising: a gas turbine, disposed in the power generation area and opposite to the outlet of the gas phase exhaust assembly, the gas turbine being capable of rotating under the driving force of the gaseous hydrogen ejected from the outlet of the gas phase exhaust assembly; and A wind turbine generator is arranged in the power generation area and 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.

2. The safety treatment device for a vehicle liquid hydrogen storage tank according to claim 1, 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.

3. The safety treatment device for a vehicle liquid hydrogen storage tank according to claim 1, 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 draw air into the combustion area.

4. The safety treatment device for a vehicle liquid hydrogen storage tank according to any one of claims 1 to 3, 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, and 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 The conveying component has one end connected to the gas phase exhaust pipe and the other end forming the outlet of the gas phase exhaust component.

5. The safety treatment device for a vehicle liquid hydrogen storage tank according to claim 4 is 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 such that the bottom of the gas phase exhaust pipe is located vertically downward, and the gas phase inlet is directed vertically upward.

6. The safety treatment device for a vehicle liquid hydrogen storage tank according to claim 4, characterized in that: 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; The first delivery pipe is connected to a reheater for reheating the gaseous hydrogen discharged from the interior of the vehicle liquid hydrogen storage tank.

7. The safety treatment device for a vehicle liquid hydrogen storage tank according to claim 6, 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 using the heat of the flue gas after the combustion of the gaseous hydrogen.

8. The safety treatment device for a vehicle liquid hydrogen storage tank according to claim 6, 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 status of the vehicle liquid hydrogen storage tank; A controller is provided on the first delivery pipe, and the controller is connected to the abnormal situation detection unit, and is used to control 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.

9. The safety treatment device for a vehicle liquid hydrogen storage tank according to claim 8, 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.

10. The safety treatment device for a vehicle liquid hydrogen storage tank according to claim 8, characterized in that: The controller includes: a solenoid valve, provided 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 abnormality detection unit and the solenoid valve, and configured to control the operation of the solenoid valve according to the state of the vehicle liquid hydrogen storage tank detected by the abnormality 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.

Images