A mobile hydrogenation device

Abstract

The present invention provides an embodiment of the present invention to provide a mobile hydrogenation device, including: a gas unloading system 1a, a hydrogen compression system 2a, a hydrogen filling system 3a, a nitrogen system 4a, a hydraulic drive machine 5a, a cooling system 6a, a fuel cell power generation system 7a and a control system 8a. The gas unloading system 1a, the hydrogen compression system 2a, the hydrogen filling system 3a, the nitrogen system 4a, the hydraulic drive system 5a, the cooling system 6a, and the fuel cell power generation system 7a are all connected to the electrical control line of the control system 9a to realize the automatic control of the entire mobile hydrogenation device. The technical solution of the present invention can conveniently and quickly realize the filling of 35MPa / 70MPa hydrogen fuel of hydrogen fuel cell ships and (locomotives) vehicles without geographical restrictions, thereby improving the convenience of fuel filling operations.

Description

Technical Field

[0001] The invention belongs to the technical field of fuel filling, and in particular relates to a mobile hydrogenation device. Background Art

[0002] Hydrogen energy is a secondary energy source with diverse sources, clean and low-carbon, flexible, efficient and high safety. It has many advantages such as high calorific value, zero pollution, storability and renewability.

[0003] The popularization of hydrogen energy depends on the construction of hydrogen refueling stations. Currently, most of the existing hydrogen refueling stations are fixed hydrogen refueling stations. Usually, the construction of a hydrogen refueling station requires high land rental fees and high initial construction costs. When hydrogen fuel cell ships are refueled with hydrogen, the use of fixed hydrogen refueling stations requires the construction of a dedicated dock with a hydrogen refueling station, the establishment of a dedicated berth for fuel cell ships with a hydrogen refueling machine, and then the laying of a long dedicated hydrogen pipeline to the hydrogen refueling machine located at the ship's berthing position for refueling. The cost of these expenses greatly reduces the comprehensive benefits of the hydrogen refueling station and increases the hydrogen cost of fuel cell ships. At the same time, due to the particularity of the ship's berthing position, the hydrogen fuel cell ship needs to enter the corresponding refueling position of the hydrogen refueling service area of ​​the designated dock before it can be refueled with hydrogen. Therefore, the use flexibility of fixed marine hydrogen refueling stations is poor, which is not conducive to the promotion and popularization of fuel cell ships.

[0004] Therefore, how to propose a mobile hydrogen refueling device to conveniently and quickly realize the refueling of 35MPa / 70MPa hydrogen fuel for hydrogen fuel cell ships and (locomotives) without geographical restrictions, and improve the convenience of fuel refueling operations, has become a technical problem that needs to be solved urgently. Summary of the invention

[0005] The embodiment of the present invention provides a mobile hydrogen refueling device, which can realize the refueling of 35MPa / 70MPa hydrogen fuel of hydrogen fuel cell ships and (locomotives) in a convenient and fast manner without geographical restrictions, thereby improving the convenience of fuel refueling operations.

[0006] The present invention provides a mobile hydrogenation device, comprising: a gas unloading system 1a, a hydrogen compression system 2a, a hydrogen filling system 3a, a nitrogen system 4a, a hydraulic drive machine 5a, a cooling system 6a, a fuel cell power generation system 7a and a control system 8a;

[0007] The gas unloading system 1a is used to provide a nitrogen source, including a gas unloading hose and a pipeline system. One end of the gas unloading hose is connected to the long tube trailer, and a pipeline at the other end is connected to the hydrogen compression module 2a for hydrogen compression, and the other pipeline is connected to the fuel cell power generation module 8 after decompression;

[0008] The hydrogen compression system 2a adopts three-stage compression to compress the hydrogen in the long tube trailer;

[0009] The hydrogen filling system 3a includes: a high-pressure pipeline, a control valve group, a filling operation panel, a hydrogenation pipeline, a hydrogenation gun, and a hydraulically driven mechanical arm; the filling operation panel is mechanically connected to the front end of the hydraulically driven mechanical arm and moves with the hydraulically driven boom; the hydraulically driven mechanical arm is driven by hydraulic oil provided by the hydraulic drive system, and a hydrogenation operation end 5c is provided at the end of the hydraulically driven mechanical arm;

[0010] The nitrogen system 4a includes a set of nitrogen cylinders, nitrogen purge pipelines and a hand-cranked crane, which is used to purge the entire set of hydrogen pipelines and provide instrument gas source;

[0011] The hydraulic drive system 5a includes: a pump device, a valve group, an integrated block, and an oil tank. The hydraulic pump is connected to the hydrogen compression system 2a and the hydrogen filling system 3a through hydraulic pipelines, respectively, and is used to provide a power source for the hydrogen compression system 2a and the hydrogen filling system 3a;

[0012] The cooling system 6a includes a cooling fan 1b and a refrigerator 2b located at the front end of the vehicle body and a water tank 10b hung on the lower side of the vehicle body, which is used to cool the hydrogen compression system 2a and the hydraulic drive system 5a;

[0013] The fuel cell power generation system 7a includes: a hydrogen fuel cell and a pressure reducing device. The hydrogen in the long tube trailer passes through the gas unloading system 1a and the pressure reducing device in sequence and then enters the fuel cell, converting chemical energy into electrical energy to provide a power source for the entire mobile hydrogenation device;

[0014] The gas unloading system 1a, hydrogen compression system 2a, hydrogen filling system 3a, nitrogen system 4a, hydraulic drive system 5a, cooling system 6a, and fuel cell power generation system 7a are all connected to the electrical control line of the control system 9a to realize the automatic control of the entire mobile hydrogenation device.

[0015] Furthermore, the filling operation panel includes: a liquid crystal display screen and operation buttons;

[0016] The liquid crystal display screen is used to display at least hydrogenation flow measurement, price and current filling pressure data information; the operation buttons include an emergency button for use in emergency situations. By pressing the emergency button, the power supply can be cut off to stop filling.

[0017] Furthermore, the hydraulically driven mechanical arm comprises: 5 folded metal arm sections 1c, a front end angle adjustment mechanism 4c and a hydrogenation operation end 5c;

[0018] The hydraulically driven mechanical arm has one pitch degree of freedom and five rotation degrees of freedom, which are driven by the piston hydraulic cylinder 2c and the rotary hydraulic cylinder 3c respectively; the front end angle adjustment mechanism 4c is a rotary movable joint with three rotation degrees of freedom, which can adjust the posture angle of the hydrogenation operation end 5c in space.

[0019] Furthermore, the front end angle adjustment mechanism 4c is driven by an explosion-proof servo motor through a reducer and is powered by the control system 8a.

[0020] Furthermore, the hydrogenation operation terminal 5c includes: a liquid crystal touch screen 1d, a button indicator light 2d, a breakaway valve 3d, a hydrogenation gun 4d and a hydrogenation gun fixing seat 5d;

[0021] The LCD touch screen 1d is used to set at least the hydrogenation pressure / hydrogenation amount and display pressure, parameters, and flow information; the button indicator light 2d indicates the filling / stop status and the start / stop of filling; the hydrogenation gun 4d is connected to the breakaway valve 3d through a high-pressure hose to compensate for the displacement caused by the shaking of the hull during the hydrogenation of the fuel cell ship.

[0022] Furthermore, the hydrogen compression system 2a adopts three-stage compression, including:

[0023] The hydrogen compression system 2a includes three liquid-driven booster pumps, which adopt a three-stage compression method of low, medium and high levels to meet different pressure filling requirements of 35MPa / 70MPa.

[0024] Furthermore, high- and low-pressure venting pipelines are provided on the top of the mobile hydrogenation device, and the hydrogen venting port is more than 5m from the ground to realize high-pressure venting and low-pressure venting in the process flow; the hydrogen venting pipeline adopts an automatic lifting design, and the two rows of venting pipes are stainless steel hard pipes fixed on the metal frame; the bottom of the metal frame is connected to the top of the vehicle body by a hinge, and is driven by a motor reduction device, and can perform 90° pitch rotation.

[0025] Furthermore, the bottom of the exhaust pipe is connected to the exhaust pipeline in the vehicle body through a hose, and the top of the mobile hydrogenation device is provided with a natural fan and an emergency fan exhaust port.

[0026] Furthermore, a hydrogen leakage sensor, an ambient temperature sensor and a flame detector are provided inside the mobile hydrogenation device. When the control system of the mobile hydrogenation device collects the signals of the above sensors during the filling process, when over-temperature, flame or hydrogen leakage reaches the alarm value, the power supply can be automatically cut off to stop filling; and a leakage alarm interlock is provided inside the system. When hydrogen leakage is detected, the emergency fan starts automatically to remove the hydrogen inside the equipment.

[0027] The beneficial effects brought by the present invention are as follows:

[0028] It can be seen from the above scheme that an embodiment of the present invention provides a mobile hydrogenation device, including: a gas unloading system 1a, a hydrogen compression system 2a, a hydrogen filling system 3a, a nitrogen system 4a, a hydraulic drive machine 5a, a cooling system 6a, a fuel cell power generation system 7a and a control system 8a. The gas unloading system 1a, the hydrogen compression system 2a, the hydrogen filling system 3a, the nitrogen system 4a, the hydraulic drive system 5a, the cooling system 6a, and the fuel cell power generation system 7a are all connected to the electrical control line of the control system 9a to realize the automatic control of the entire mobile hydrogenation device. The technical solution of the present invention can realize the filling of 35MPa / 70MPa hydrogen fuel of hydrogen fuel cell ships and (locomotives) vehicles conveniently and quickly without geographical restrictions, and improve the convenience of fuel filling operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic diagram showing a mobile hydrogenation device according to an embodiment of the present invention;

[0030] Figure 2 A first appearance diagram showing a mobile hydrogenation device according to an embodiment of the present invention;

[0031] Figure 3 A schematic diagram showing the structure of a hydrogen filling system mechanical arm of a mobile hydrogenation device according to an embodiment of the present invention;

[0032] Figure 4 A schematic diagram of the structure of the end of a robotic arm of a mobile hydrogenation device according to an embodiment of the present invention is shown. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] The embodiment of the present invention provides a mobile hydrogen refueling device for fuel cell ships and vehicles, which can not only be used for hydrogen refueling of hydrogen fuel cell ships, but also provide hydrogen refueling services for hydrogen fuel cell vehicles. The device relies on a heavy truck as the tractor head, integrates power supply equipment, hydrogen compression, and refueling equipment into a skid, and has a built-in movable hydrogen refueling panel, which can provide 35MPa / 70MPa hydrogen refueling services for hydrogen fuel cell ships and vehicles in an unrestricted, convenient and fast manner.

[0035] like Figure 1 As shown, Figure 1A schematic diagram showing a mobile hydrogenation device according to an embodiment of the present invention.

[0036] Figure 1 A mobile hydrogenation device includes: a gas unloading system 1a, a hydrogen compression system 2a, a hydrogen filling system 3a, a nitrogen system 4a, a hydraulic drive machine 5a, a cooling system 6a, a fuel cell power generation system 7a and a control system 8a;

[0037] The gas unloading system 1a is used to provide a nitrogen source, including a gas unloading hose and a pipeline system. One end of the gas unloading hose is connected to the long tube trailer, and a pipeline at the other end is connected to the hydrogen compression module 2a for hydrogen compression, and the other pipeline is connected to the fuel cell power generation module 8 after decompression, which is used to convert chemical energy into electrical energy.

[0038] The hydrogen compression system 2a adopts three-stage compression to compress the hydrogen in the long tube trailer.

[0039] In the embodiment of the present invention, the hydrogen compression system 2a includes three liquid-driven booster pumps, which adopt low, medium and high three-stage compression methods to meet different pressure filling requirements of 35MPa / 70MPa. At the same time, the booster pump uses hydraulic oil as the power source, meets the explosion-proof requirements, and is safe and reliable.

[0040] The hydrogen filling system 3a includes: a high-pressure pipeline, a control valve group, a filling operation panel, a hydrogenation pipeline, a hydrogenation gun, and a hydraulically driven mechanical arm; the filling operation panel is mechanically connected to the front end of the hydraulically driven mechanical arm and moves with the hydraulically driven boom; the hydraulically driven mechanical arm is driven by hydraulic oil provided by the hydraulic drive system, and a hydrogenation operation end 5c is provided at the end of the hydraulically driven mechanical arm.

[0041] In the embodiment of the present invention, the filling operation panel includes: a liquid crystal display screen and operation buttons;

[0042] The liquid crystal display screen is used to display at least hydrogenation flow measurement, price and current filling pressure data information; the operation buttons include an emergency button for use in emergency situations. By pressing the emergency button, the power supply can be cut off to stop filling.

[0043] The hydrogen filling system includes a foldable mechanical arm located at the rear end of the mobile hydrogenation device. The end of the mechanical arm has a hydrogenation operation panel including a hydrogenation gun and a breakaway valve. When providing hydrogenation services for fuel cell ships, the hydrogenation operation panel can be extended by the mechanical arm to the docking position at a certain distance from the shore of the hydrogenation device dock or to the side of the ship with a high pressure drop, so as to facilitate hydrogenation operations. By extending the mechanical arm, the mobile hydrogenation device can also be used for the refueling service of fuel cell locomotives parked in locations that are inconvenient for heavy vehicles to reach.

[0044] A hydrogen filling system comprises a high-pressure pipeline, a control valve group, a filling operation panel, a hydrogenation pipeline, a hydrogenation gun, a hydraulically driven mechanical arm, etc.; wherein the filling operation panel comprises a liquid crystal display, an operation button, etc., the filling operation panel is mechanically connected to the front end of the hydraulically driven mechanical arm, and can move with the hydraulically driven boom; further, when the hydrogenation ship or vehicle arrives at the designated hydrogenation position, the hydrogenation control panel can be extended to the ship deck or the side of the vehicle based on the hydraulically driven boom, and the personnel on the ship or vehicle can operate the hydrogenation gun on one side of the hydrogenation panel to fill hydrogen; the liquid crystal display is used to display data such as hydrogenation flow metering, price and current filling pressure; the operation button includes an emergency button for use in an emergency, and pressing the emergency button can cut off the power supply and stop filling; the hydrogenation high-pressure pipeline adopts a hose design, which can be retracted and extended with the hydraulically driven arm, and does not affect the transportation of high-pressure hydrogen during the filling process; the hydrogenation gun includes 1 35MPa and 1 70MPa hydrogenation gun. The 35MPa hydrogenation gun is located at the end of the robotic arm, and the 70MPa hydrogenation gun is located in a fixed position at the rear of the mobile hydrogenation unit.

[0045] The hydrogenation system mechanical arm is driven by hydraulic oil provided by the hydraulic drive system. Figure 3 As shown, the robotic arm is mainly composed of 5 folded metal arm sections 1c, a front angle adjustment mechanism 4c and a hydrogenation operation end 5c. It has one pitching degree of freedom and 5 rotational degrees of freedom, which are driven by a piston hydraulic cylinder 2c and a rotary hydraulic cylinder 3c respectively. The arm span can be extended to a length of 10 meters and has a certain angle of up and down pitch height to meet the needs of moving the hydrogenation operation end to different levels and distances. The angle adjustment mechanism 4c at the end of the robotic arm is a rotary movable joint with 3 rotational degrees of freedom, which can adjust the posture angle of the hydrogenation operation end 5c in space. After the hydraulic system drives the robotic arm to move in place, the driving hydraulic cylinders of each motion joint are turned into a self-locking state, locking the position and posture of the robotic arm without consuming additional power of the hydraulic system.

[0046] The 3-DOF rotary joint at the front end of the hydraulic manipulator is driven by a servo motor through a reducer. The servo motor adopts an explosion-proof design and is powered by the control system. The hydrogenation operation panel has a 2-axis angle sensor inside. During the station control movement of the hydraulic manipulator, the control system detects the reading of the 2-axis angle sensor inside the hydrogenation operation panel and adjusts the angle posture of the 3 rotary joints at the front end of the manipulator in real time, so that the axis of the hydrogenation gun or the bottom surface of the hydrogenation operation panel is always vertically downward, ensuring that its operating surface always remains facing the operator.

[0047] The end of the hydrogenation mechanical arm has a hydrogenation operation end 5c, such as Figure 4As shown. It includes 1d LCD touch screen, 2d button indicator light, 3d breakaway valve, 4d hydrogenation gun and 5d hydrogenation gun fixing seat. 1d LCD touch screen is used to set hydrogenation pressure / hydrogenation amount and display pressure, parameters, flow and other information; 2d button indicator light indicates filling / stop status and starts / stops filling; 4d hydrogenation gun is connected to 3d breakaway valve through a 1-2 meter long high-pressure hose to compensate for the displacement caused by the shaking of the hull during the hydrogenation of the fuel cell ship.

[0048] The hydrogenation gun 4d is fixed by the hydrogenation gun fixing seat 5d. The hydrogenation gun fixing seat adopts an open-and-close design. After closing, the hydrogenation gun 4d can be completely fixed by tightening the conical surface to prevent the hydrogenation gun from loosening and falling off during the movement of the robot arm. The locking of the hydrogenation gun fixing seat 5d can be controlled by the knob switch 6d on the side of the hydrogenation operation end. When the hydrogenation gun is placed on the fixing seat, rotate the knob switch 6d, the internal mechanical device locks the fixing seat 5d, and the hydrogenation gun fixing seat cannot be opened or closed by pulling it outward; if the hydrogenation gun needs to be removed, turn the knob switch 6d, and after the fixing seat 5d is unlocked, pull the hydrogenation gun outward, and the hydrogenation gun fixing seat can be opened to remove the hydrogenation gun.

[0049] The nitrogen system 4a includes a set of nitrogen cylinders, nitrogen purge pipelines and a hand-cranked crane, which are used to purge the entire set of hydrogen pipelines and provide instrument gas sources. The nitrogen cylinder is used to provide a compressed nitrogen gas source and is connected to the pipeline system through a high-pressure hose. When the cylinder needs to be replaced, the hinged door on the side of the mobile hydrogenation device body is opened, and the nitrogen cylinder group can be hoisted to the ground by the hand-cranked crane, and the replacement of the cylinder can be easily completed.

[0050] The hydraulic drive system 5a includes: a pump device, a valve group, an integrated block, and an oil tank. The hydraulic pump is connected to the hydrogen compression system 2a and the hydrogen filling system 3a through hydraulic pipelines, respectively, and is used to provide a power source for the hydrogen compression system 2a and the hydrogen filling system 3a.

[0051] The pump device includes: a motor and an oil pump. During use, when the ship / vehicle arrives at the designated hydrogenation position, the hydraulic drive system 5a first drives the hydraulic drive mechanical arm to drive the hydrogenation operation panel to the designated position, and then uses the hydraulic circuit self-locking to ensure that the hydrogenation operation panel stays at the designated position, and then the hydraulic drive system 5a provides power to the hydrogen compressor 3a to compress hydrogen.

[0052] The cooling system 6a includes a cooling fan 1b and a refrigerator 2b located at the front end of the vehicle body and a water tank 10b hung on the lower side of the vehicle body, which are used to cool the hydrogen compression system 2a and the hydraulic drive system 5a.

[0053] In the embodiment of the present invention, when working, the refrigerator cools the coolant to below 0°C through the air-cooled radiator. The coolant is stored in a water tank 10b hung on the bottom of the vehicle body. The coolant water tank 10b is connected through a water pump and a pipeline, and circulates in the heat exchangers of the hydrogen compression system and the hydraulic drive system respectively, so as to cool and reduce the temperature of the above systems.

[0054] The fuel cell power generation system 7a includes: a hydrogen fuel cell and a pressure reducing device. The hydrogen in the long tube trailer passes through the gas unloading system 1a and the pressure reducing device in sequence and then enters the fuel cell, converting chemical energy into electrical energy to provide a power source for the entire mobile hydrogenation device.

[0055] In the embodiment of the present invention, the power generation system 7a includes a hydrogen fuel cell and a pressure reducing device. The hydrogen in the long tube trailer passes through the gas unloading system 1a and the pressure reducing device in sequence and then enters the fuel cell, converting chemical energy into electrical energy for providing power for the entire mobile hydrogenation device, so that the entire mobile device can operate normally without an external power supply, and hydrogenation can be achieved anytime and anywhere.

[0056] The gas unloading system 1a, hydrogen compression system 2a, hydrogen filling system 3a, nitrogen system 4a, hydraulic drive system 5a, cooling system 6a, and fuel cell power generation system 7a are all connected to the electrical control line of the control system 9a to realize the automatic control of the entire mobile hydrogenation device.

[0057] In the embodiment of the present invention, the control system 9a is respectively connected to the electrical control circuits of the gas unloading system 1a, the hydrogen compressor 2, the hydrogen filling system 3, the nitrogen system 4a, the hydraulic drive system 5a, the cooling system 6a, and the fuel cell power supply system 7a, so as to realize the automatic control of the mobile hydrogenation device, and the parameters can be set through the operation panel in the vehicle body.

[0058] High and low pressure venting pipelines are installed on the top of the mobile hydrogenation unit, and the hydrogen venting port is more than 5m from the ground to achieve high pressure venting and low pressure venting in the process flow; further, the hydrogen venting pipeline adopts an automatic lifting design, and the two emptying pipes are stainless steel hard pipes fixed on the metal frame. The bottom of the metal frame is connected to the top of the vehicle body through a hinge, and is driven by a motor reduction device, and can be pitched 90 degrees. When the hydrogenation unit is moving, the venting pipeline is automatically folded and lowered, and rises when the mobile hydrogenation unit reaches the hydrogenation position. The bottom of the venting pipe is connected to the venting pipeline in the vehicle body through a hose. In addition, a natural fan and an emergency fan exhaust port are provided on the top of the mobile hydrogenation unit.

[0059] The mobile hydrogenation unit is equipped with hydrogen leakage sensors, ambient temperature sensors, flame detectors, etc. When the control system of the mobile hydrogenation unit collects the signals of the above sensors during the filling process, when over-temperature, flame or hydrogen leakage reaches the alarm value, the power supply will be automatically cut off to stop filling; and the system is equipped with a leakage alarm interlock. When hydrogen leakage is detected, the emergency fan will start automatically to remove the hydrogen inside the equipment; all electrical components inside the mobile hydrogenation unit are explosion-proof, and the mobile hydrogenation unit is safe and reliable as a whole.

[0060] The above are preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A mobile hydrogenation device, characterized in that: The hydrogenation device comprises: a gas unloading system, a hydrogen compression system, a hydrogen filling system, a nitrogen system, a hydraulic drive machine, a cooling system, a fuel cell power generation system and a control system; The gas unloading system is used to provide a nitrogen source, and includes a gas unloading hose and a pipeline system. One end of the gas unloading hose is connected to the long tube trailer, and a pipeline at the other end is connected to the hydrogen compression module to compress the hydrogen, and the other pipeline is connected to the fuel cell power generation module after decompression; The hydrogen compression system adopts three-stage compression to compress the hydrogen in the long tube trailer; The hydrogen filling system comprises: a high-pressure pipeline, a control valve group, a filling operation panel, a hydrogenation pipeline, a hydrogenation gun, and a hydraulically driven mechanical arm; the filling operation panel is mechanically connected to the front end of the hydraulically driven mechanical arm and moves with the hydraulically driven boom; the hydraulically driven mechanical arm is driven by hydraulic oil provided by a hydraulic drive system, and a hydrogenation operation end is arranged at the end of the hydraulically driven mechanical arm; The nitrogen system includes a nitrogen cylinder, a nitrogen purge pipeline and a hand-cranked crane, which is used to purge the entire set of hydrogen pipelines and provide instrument gas source; The pressure drive system includes: a pump device, a valve group, an integrated block, and an oil tank. The pump device is connected to the hydrogen compression system and the hydrogen filling system through hydraulic pipelines, respectively, and is used to provide a power source for the hydrogen compression system and the hydrogen filling system; The cooling system includes a cooling fan and a refrigerator located at the front end of the vehicle body and a water tank hung on the lower side of the vehicle body, which are used to cool the hydrogen compression system and the hydraulic drive system; The fuel cell power generation system comprises: a hydrogen fuel cell and a pressure reducing device. The hydrogen in the long tube trailer passes through the gas unloading system and the pressure reducing device in sequence and then enters the fuel cell, converting chemical energy into electrical energy to provide a power source for the entire mobile hydrogenation device. The gas unloading system, hydrogen compression system, hydrogen filling system, nitrogen system, hydraulic drive system, cooling system, and fuel cell power generation system are all connected to the control system electrical control line to realize the automatic control of the entire mobile hydrogenation device.

2. A mobile hydrogenation device according to claim 1, characterized in that: The filling operation panel includes: a liquid crystal display screen and operation buttons; The liquid crystal display screen is used to display at least hydrogenation flow measurement, price and current filling pressure data information; the operation buttons include an emergency button for use in emergency situations. By pressing the emergency button, the power supply can be cut off to stop filling.

3. A mobile hydrogenation device according to claim 1, characterized in that: The hydraulically driven mechanical arm comprises: a foldable metal arm section, a front end angle adjustment mechanism and a hydrogenation operation end; The hydraulically driven mechanical arm has one pitch degree of freedom and one rotation degree of freedom, which are driven by a piston hydraulic cylinder and a rotary hydraulic cylinder respectively; the front end angle adjustment mechanism is a rotary movable joint with one rotational degree of freedom, which can adjust the posture angle of the hydrogenation operation end in space.

4. A mobile hydrogenation device according to claim 3, characterized in that: The front end angle adjustment mechanism is driven by an explosion-proof servo motor through a reducer and is powered by the control system.

5. A mobile hydrogenation device according to claim 3, characterized in that: The hydrogenation operation end includes: a liquid crystal touch screen, a button indicator light, a breakaway valve, a hydrogenation gun and a hydrogenation gun fixing seat; The LCD touch screen is used to set at least the hydrogenation pressure / hydrogenation amount and display pressure, parameters, and flow information; the button indicator light indicates the filling / stop status and starts / stops filling; the hydrogenation gun is connected to the breakaway valve through a high-pressure hose to compensate for the displacement caused by the shaking of the hull during the hydrogenation of the fuel cell ship.

6. A mobile hydrogenation device according to claim 1, characterized in that: The hydrogen compression system adopts three-stage compression, including: The hydrogen compression system includes a liquid-driven booster pump, which adopts a three-stage compression method of low, medium and high levels to meet the different pressure filling requirements of MP / MP.

7. A mobile hydrogenation device according to claim 1, characterized in that: High- and low-pressure venting pipelines are provided on the top of the mobile hydrogenation device, and the hydrogen venting port is above the ground to realize high-pressure venting and low-pressure venting in the process flow; the hydrogen venting pipeline adopts an automatic lifting design, and the two rows of venting pipes are stainless steel hard pipes fixed on the metal frame; the bottom of the metal frame is connected to the top of the vehicle body by a hinge, and is driven by a motor reduction device, and can perform a pitch rotation of °.

8. A mobile hydrogenation device according to claim 7, characterized in that: The bottom of the exhaust pipe is connected to the exhaust pipeline in the vehicle body through a hose, and the top of the mobile hydrogenation device is provided with a natural fan and an emergency fan exhaust port.

9. The mobile hydrogenation device according to claim 1, characterized in that: The mobile hydrogenation device is internally provided with a hydrogen leakage sensor, an ambient temperature sensor and a flame detector. When the control system of the mobile hydrogenation device collects the signals of the above sensors during the filling process, when over-temperature, flame or hydrogen leakage reaches the alarm value is detected, the power supply can be automatically cut off to stop filling; and a leakage alarm interlock is provided inside the system. When hydrogen leakage is detected, the emergency fan starts automatically to remove the hydrogen inside the equipment.

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