Mobile hydrogen storage tank, hydrogen charging and discharging system and control method

Abstract

The mobile hydrogen storage tank comprises a bottom plate, the middle of the bottom plate is fixedly connected with a storage tank, the middle of the bottom plate is provided with a partition plate, and one side of the top surface of the bottom plate is fixedly connected with a hydrogenation reactor and a fixing frame. The device has the advantages that the bottom plate provides mounting positions for the storage tank, the hydrogenation reactor and the dehydrogenation reactor, the whole device can be conveniently hoisted on transportation equipment for long-distance transportation, the heater and the radiator are arranged, then reaction conditions are provided for dehydrogenation reaction and hydrogenation reaction respectively, and the hydrogenation reactor runs, so that the reaction efficiency is improved. Hydrogen and dehydrogenation organic liquid are subjected to hydrogenation reaction to generate hydrogen-rich organic liquid, the hydrogen-rich organic liquid is stored in a storage tank to be transported, the hydrogen-rich organic liquid is pumped to pass through a dehydrogenation reactor to be subjected to dehydrogenation reaction, meanwhile, hydrogen is released, a hydrogen station is inflated, and overall hydrogen charging and discharging work is independent and does not affect each other, so that the charging and discharging time is effectively shortened, and the working efficiency is improved. And the hydrogen charging and discharging efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrogen storage tanks, and in particular to a mobile hydrogen storage tank, a hydrogen filling and unloading system, and a control method. Background Art

[0002] Hydrogen energy is considered an ideal energy source due to its clean and sustainable characteristics. It has been widely used in aerospace, transportation, chemical industry and other fields. However, large-scale storage and transportation of hydrogen energy is still a bottleneck for hydrogen energy application. At present, there are two common storage methods for hydrogen energy: physical method and chemical method. Physical method includes high-pressure gaseous hydrogen storage, low-temperature liquid hydrogen storage and physical adsorption hydrogen storage. Chemical method includes organic liquid hydrogen storage, metal alloy hydrogen storage, liquid ammonia, methanol hydrogen storage, etc.

[0003] Compared with other commonly used hydrogen storage methods, the organic liquid hydrogen storage method has obvious advantages, and its advantages are mainly reflected in the following aspects: the reaction process is reversible and the hydrogen storage density is high; the storage and transportation of hydrogen carriers is safe and convenient, and is suitable for long-distance transportation; the existing gasoline pipelines, gas stations and other infrastructure can be used. The existing liquid hydrogen storage hydrogenation and dehydrogenation equipment is generally installed in the station, and the entire hydrogenation reaction and dehydrogenation reaction are carried out with the help of relevant equipment in the station. When multiple mobile hydrogen storage tanks enter the station at the same time, they need to queue up. This method reduces the efficiency of hydrogen filling and unloading. Based on this, a mobile hydrogen storage tank, a hydrogen filling and unloading system and a control method are proposed. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the present invention provides a mobile hydrogen storage tank and a hydrogen filling and unloading system and a control method, which have the advantages of safe transportation, and can simultaneously carry out hydrogen filling and unloading through the hydrogenation reactor and dehydrogenation reactor carried by the mobile hydrogen storage tank, without interfering with each other, thereby effectively improving the overall efficiency, etc., and solves the problem of reduced efficiency caused by the need to queue when filling and unloading hydrogen with existing mobile hydrogen storage tanks.

[0006] (II) Technical solution

[0007] In order to achieve the above-mentioned purpose of charging and unloading hydrogen through the self-carried hydrogenation reactor and dehydrogenation reactor without interfering with each other and effectively improving the overall efficiency, the present invention provides the following technical solutions:

[0008] A mobile hydrogen storage tank, characterized in that it includes a base plate, a storage tank is fixedly connected to the middle of the base plate, a partition is arranged in the middle thereof, a hydrogenation reactor and a fixed frame are fixedly connected to one side of the top surface of the base plate, a radiator is fixedly connected to one side of the fixed frame, a dehydrogenation reactor, a control box and a support frame are fixedly connected to the other side of the base plate in sequence, a heater is fixedly connected to the top of the support frame, one side of the dehydrogenation reactor and the hydrogenation reactor are respectively connected to the two ends of the storage tank through two pipes, valves are arranged on the side away from the dehydrogenation reactor and the hydrogenation reactor, and a display screen is arranged on one side of the control box.

[0009] Preferably, a safety valve is fixedly connected to the top side of the outer wall of the storage tank, and the two safety valves are respectively connected to the interior of the storage tank.

[0010] Preferably, the radiator is connected to the hydrogenation reactor through a pipeline, and one side of the heater is connected to the dehydrogenation reactor through a pipeline.

[0011] Preferably, two metering valves are provided between the hydrogenation reactor and the dehydrogenation reactor and the end surface of the storage tank.

[0012] A mobile hydrogen storage tank hydrogen filling and unloading system, characterized in that it includes a storage module, a hydrogenation reaction module, a dehydrogenation reaction module, a heat dissipation module, a heating module, a metering module, a processing module, and a display module. The hydrogenation reaction module and the dehydrogenation reaction module are both connected to the storage module through a pipeline, the heat dissipation module is connected to the hydrogenation reaction module, the heating module is connected to the dehydrogenation reactor, and the processing module is electrically connected to the metering module and the display module.

[0013] Preferably, the storage module comprises the storage tank, the outer wall of which is provided with a heat-insulating layer and a protective layer.

[0014] Preferably, the hydrogenation reaction module includes a hydrogenation reactor, a pressure pump and a hydrogenation catalyst, and the dehydrogenation reaction module includes a dehydrogenation reactor, a pressure pump and a dehydrogenation catalyst. The dehydrogenation reactor and the hydrogenation reactor are both provided with a spirally structured water pipe, and the two ends of the water pipe are respectively connected to the heater and the radiator.

[0015] Preferably, the processing module includes a processing circuit board and a RAM processor, the RAM processor is arranged on the processing circuit board, the processing circuit board is located inside the control box, and is electrically connected to the metering valve through a wire.

[0016] A method for controlling the filling and unloading of hydrogen in a mobile hydrogen storage tank, characterized in that it comprises the following steps:

[0017] 1) The external hydrogen is connected to the valve on one side of the hydrogenation reaction module;

[0018] 2) The hydrogenation reactor and the radiator are powered on and operated, and at the same time, the pressure pump in the hydrogenation reaction module is operated, so that the hydrogen and the dehydrogenated organic liquid in the storage tank pass through the hydrogenation catalyst synchronously, and a chemical reaction occurs to generate a hydrogen-rich organic liquid;

[0019] 3) The hydrogen-rich organic liquid is injected into the other side of the storage tank to complete the hydrogen charging reaction, which is convenient for transportation;

[0020] 4) The dehydrogenation reactor and the heater are powered on and operated, and at the same time, the pressure pump in the dehydrogenation reaction module is operated to pump the hydrogen-rich organic liquid through the dehydrogenation catalyst to cause a dehydrogenation reaction to occur, generating hydrogen and dehydrogenated organic liquid;

[0021] 5) The dehydrogenated organic liquid is pumped back into the storage tank, and the external hydrogen storage device is connected to the valve on one side of the dehydrogenation reactor to complete the hydrogen discharge operation;

[0022] 6) The flow in the hydrogenation reaction and the dehydrogenation reaction is monitored in the metering module, and the data is transmitted to the processing module for data processing, and the flow changes in the two reaction processes are monitored in the display module.

[0023] (III) Beneficial effects

[0024] Compared with the prior art, the present invention provides a mobile hydrogen storage tank and a hydrogen filling and unloading system and a control method, which have the following features:

[0025] Beneficial effects:

[0026] 1. A mobile hydrogen storage tank, a hydrogen filling and unloading system and a control method provide a bottom plate to provide installation positions for the storage tank, the hydrogenation reactor and the dehydrogenation reactor, so as to facilitate hoisting the whole on the transportation equipment for long-distance transportation. A heater and a radiator are provided to provide reaction conditions for the dehydrogenation reaction and the hydrogenation reaction respectively. The hydrogenation reactor is operated to make hydrogen react with the dehydrogenation organic liquid to generate a hydrogen-rich organic liquid, which is stored in the storage tank for transportation. The hydrogen-rich organic liquid is pumped through the dehydrogenation reactor for dehydrogenation reaction, and hydrogen is released at the same time to inflate the hydrogen station. The overall hydrogen filling and unloading work is done separately and does not affect each other, which effectively shortens the filling and unloading time and improves the efficiency of hydrogen filling and unloading.

[0027] 2. This mobile hydrogen storage tank, hydrogen filling and unloading system and control method are configured with a processing module, a metering module and a display module. The metering module monitors the flow in the hydrogenation reaction and the dehydrogenation reaction, transmits the data to the processing module for data processing, and monitors the flow changes in the two reaction processes in the display module, so that the user can intuitively view the hydrogen filling and unloading process. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A first-view structural schematic diagram of a mobile hydrogen storage tank, a hydrogen filling and unloading system, and a control method proposed in the present invention;

[0029] Figure 2 A second perspective structural schematic diagram of a mobile hydrogen storage tank, a hydrogen filling and unloading system, and a control method proposed in the present invention;

[0030] Figure 3 A partial cross-sectional structural schematic diagram of a mobile hydrogen storage tank, a hydrogen filling and unloading system, and a control method for the storage tank proposed in the present invention;

[0031] Figure 4 This is a system schematic diagram of a mobile hydrogen storage tank, a hydrogen filling and unloading system, and a control method proposed in the present invention.

[0032] In the figure: 1-bottom plate, 2-storage tank, 3-radiator, 4-fixed frame, 5-hydrogenation reactor, 6-metering valve, 7-safety valve, 8-heater, 9-support frame, 10-valve, 11-dehydrogenation reactor, 12-display screen, 13-control box, 14-partition. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of 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] See also Figure 1-4 A mobile hydrogen storage tank comprises a bottom plate 1, a storage tank 2 is fixedly connected to the middle of the bottom plate 1, a partition 14 is arranged in the middle thereof, a hydrogenation reactor 5 and a fixing frame 4 are fixedly connected to one side of the top surface of the bottom plate 1, a radiator 3 is fixedly connected to one side of the fixing frame 4, a dehydrogenation reactor 11, a control box 13 and a support frame 9 are fixedly connected to the other side of the bottom plate 1 in sequence, a heater 8 is fixedly connected to the top of the support frame 9, one side of the dehydrogenation reactor 11 and the hydrogenation reactor 5 are respectively connected to the two ends of the storage tank 2 through two pipelines, a valve 10 is arranged on the side away from the dehydrogenation reactor 11 and the hydrogenation reactor 5, and a display screen 12 is arranged on one side of the control box 13.

[0035] As an optional technical solution of the present invention:

[0036] A safety valve 7 is fixedly connected to the top side of the outer wall of the storage tank 2. The two safety valves 7 are respectively connected to the interior of the storage tank 2. The tops of the two installed valves 7 are provided with elbows, which are bent 120 degrees respectively to make their openings face downward. The safety valve 7 is used to ensure that the dehydrogenated organic liquid and the hydrogen-rich organic liquid can be safely filled during the filling process, and to ensure that the pressure inside the storage tank 2 is maintained within a safe range.

[0037] As an optional technical solution of the present invention:

[0038] The radiator 3 is connected to the hydrogenation reactor 5 through a pipeline, and one side of the heater 8 is connected to the dehydrogenation reactor 11 through a pipeline. The hydrogenation reactor 5 releases heat during the hydrogenation reaction, but the accumulation of heat easily increases the internal temperature of the entire reactor 5, causing the activity of the catalyst to decrease. The radiator 3 removes the heat generated by the hydrogenation reaction through the pipeline and circulating water to ensure the normal progress of the hydrogenation reaction.

[0039] As an optional technical solution of the present invention:

[0040] Two metering valves 6 are provided between the hydrogenation reactor 5 and the dehydrogenation reactor 11 and the end faces of the storage tank 2. The metering valves 6 are convenient for monitoring the related flows of hydrogen, dehydrogenated organic liquid and hydrogen-rich organic liquid during the hydrogenation reaction and the dehydrogenation reaction, and at the same time transmit the data to the processing module for processing, and finally convert it into data for intuitive display through the display screen 12.

[0041] A mobile hydrogen storage tank hydrogen filling and unloading system is characterized by comprising a storage module, a hydrogenation reaction module, a dehydrogenation reaction module, a heat dissipation module, a heating module, a metering module, a processing module, and a display module. The hydrogenation reaction module and the dehydrogenation reaction module are both connected to the storage module through a pipeline, the heat dissipation module is connected to the hydrogenation reaction module, the heating module is connected to the dehydrogenation reactor, and the processing module is electrically connected to the metering module and the display module.

[0042] As an optional technical solution of the present invention:

[0043] The storage module includes a storage tank 2, whose outer wall is provided with an insulation layer and a protective layer. The insulation layer facilitates maintaining the dehydrogenated organic liquid or the hydrogen-rich organic liquid at a certain temperature, while isolating it from the external ambient temperature, thereby reducing the impact of the external temperature on the storage and transportation of the organic liquid. The protective layer facilitates protecting the insulation layer to prevent external foreign objects from scratching the insulation layer and the storage tank 2.

[0044] As an optional technical solution of the present invention:

[0045] The hydrogenation reaction module includes a hydrogenation reactor 5, a pressure pump and a hydrogenation catalyst, and the dehydrogenation reaction module includes a dehydrogenation reactor 11, a pressure pump and a dehydrogenation catalyst. The dehydrogenation reactor 11 and the hydrogenation reactor 5 are both provided with a spiral water pipe, and the two ends of the water pipe are respectively connected to the heater 8 and the radiator 3. The water pipe is in a spiral structure and is evenly distributed at the external position of the hydrogenation catalyst and the dehydrogenation catalyst, so as to facilitate the provision of external reaction conditions for the hydrogenation reaction and the dehydrogenation reaction. The pressure pump is used to pump the dehydrogenation organic liquid and the hydrogen-rich organic liquid, and fully contact with the hydrogenation catalyst and the dehydrogenation catalyst respectively. The hydrogenation catalyst and the dehydrogenation catalyst adopt a nanotube structure. The hydrogenation catalyst mainly includes a nickel catalyst, a palladium and platinum catalyst, a ruthenium catalyst and a rhodium catalyst. The conventional hydrogenation catalyst is a nickel metal catalyst with aluminum as a carrier, and for deep aromatic catalysis, a precious metal catalyst is the first choice. The dehydrogenation catalyst is mainly a precious metal catalyst, a non-precious metal catalyst and a mixed catalyst. The precious metal catalyst has high activity and can improve the dehydrogenation efficiency of the organic liquid hydrogen storage material.

[0046] As an optional technical solution of the present invention:

[0047] The processing module includes a processing circuit board and a RAM processor. The RAM processor is arranged on the processing circuit board. The processing circuit board is located inside the control box 13 and is electrically connected to the metering valve 6 through a wire. The RAM processor is convenient for processing and analyzing data, and its processing efficiency is greater, which is convenient for processing monitoring data and sending it to the display screen 12 in the display module for display. The processing circuit board is convenient for providing a stable power supply for the RAM processor and the display screen 12 to ensure accurate monitoring of the hydrogen filling and unloading process.

[0048] A method for controlling the filling and unloading of hydrogen in a mobile hydrogen storage tank, characterized in that it comprises the following steps:

[0049] 1) The external hydrogen is connected to the valve 10 on one side of the hydrogenation reaction module;

[0050] 2) The hydrogenation reactor 5 and the radiator are powered on and operated, and at the same time, the pressure pump in the hydrogenation reaction module is operated, so that the hydrogen and the dehydrogenated organic liquid in the storage tank 2 pass through the hydrogenation catalyst synchronously, and a chemical reaction occurs to generate a hydrogen-rich organic liquid;

[0051] 3) The hydrogen-rich organic liquid is injected into the other side of the storage tank 2 to complete the hydrogen charging reaction, which is convenient for transportation;

[0052] 4) The dehydrogenation reactor 11 and the heater 8 are powered on and operated, and at the same time, the pressure pump in the dehydrogenation reaction module is operated to pump the hydrogen-rich organic liquid through the dehydrogenation catalyst to cause a dehydrogenation reaction to occur, generating hydrogen and dehydrogenated organic liquid;

[0053] 5) The dehydrogenated organic liquid is pumped back into the storage tank 2, and the external hydrogen storage device is docked with the valve 10 on one side of the dehydrogenation reactor 11 to complete the hydrogen discharge operation;

[0054] 6) The flow in the hydrogenation reaction and the dehydrogenation reaction is monitored in the metering module, and the data is transmitted to the processing module for data processing, and the flow changes in the two reaction processes are monitored in the display module.

[0055] The electrical components mentioned in this article are all connected to an external main controller and 220V mains electricity, and the main controller can be a conventional known device for controlling a computer or the like.

[0056] In summary, the mobile hydrogen storage tank and the hydrogen filling and unloading system and control method provide installation positions for the storage tank 2, the hydrogenation reactor 5 and the dehydrogenation reactor 11 by setting the base plate 1, so as to facilitate the overall hoisting on the transportation equipment for long-distance transportation. The heater 8 and the radiator 3 are provided to provide reaction conditions for the dehydrogenation reaction and the hydrogenation reaction respectively. The hydrogenation reactor 5 is operated to make the hydrogen react with the dehydrogenation organic liquid to generate a hydrogen-rich organic liquid, which is stored in the storage tank 2 for transportation. The hydrogen-rich organic liquid is pumped through the dehydrogenation reactor for dehydrogenation reaction, and hydrogen is released at the same time to inflate the hydrogen station. The overall hydrogen filling and unloading work is done separately and does not affect each other, which effectively shortens the filling and unloading time and improves the efficiency of hydrogen filling and unloading. The processing module, the metering module and the display module are provided. The flow in the hydrogenation reaction and the dehydrogenation reaction is monitored in the metering module, and the data is transmitted to the processing module for data processing. The flow changes in the two reaction processes are monitored in the display module, so that the user can intuitively view the process of hydrogen filling and unloading.

[0057] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise one" do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0058] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mobile hydrogen storage tank, characterized in that: It comprises a bottom plate, the middle part of which is fixedly connected to a storage tank, the middle part of which is provided with a partition, one side of the top surface of the bottom plate is fixedly connected to a hydrogenation reactor and a fixed frame, one side of the fixed frame is fixedly connected to a radiator, the other side of the bottom plate is fixedly connected to a dehydrogenation reactor, a control box and a support frame in sequence, the top of the support frame is fixedly connected to a heater, one side of the dehydrogenation reactor and the hydrogenation reactor are respectively connected to two ends of the storage tank through two pipelines, valves are provided on the sides of the dehydrogenation reactor and the hydrogenation reactor away from each other, and a display screen is provided on one side of the control box.

2. A mobile hydrogen storage tank according to claim 1, characterized in that: A safety valve is fixedly connected to the top side of the outer wall of the storage tank, and the two safety valves are respectively connected to the inside of the storage tank.

3. A mobile hydrogen storage tank according to claim 2, characterized in that: The radiator is connected to the hydrogenation reactor through a pipeline, and one side of the heater is connected to the dehydrogenation reactor through a pipeline.

4. A mobile hydrogen storage tank according to claim 3, characterized in that: Two metering valves are arranged between the hydrogenation reactor and the dehydrogenation reactor and the end surface of the storage tank.

5. A mobile hydrogen storage tank hydrogen filling and unloading system, applied to a mobile hydrogen storage tank as claimed in any one of claims 1 to 4, characterized in that: It includes a storage module, a hydrogenation reaction module, a dehydrogenation reaction module, a heat dissipation module, a heating module, a metering module, a processing module and a display module. The hydrogenation reaction module and the dehydrogenation reaction module are connected to the storage module through a pipeline, the heat dissipation module is connected to the hydrogenation reaction module, the heating module is connected to the dehydrogenation reactor, and the processing module is electrically connected to the metering module and the display module.

6. A mobile hydrogen storage tank hydrogen filling and unloading system according to claim 5, characterized in that: The storage module comprises the storage tank, and the outer wall of the storage tank is provided with a heat-insulating layer and a protective layer in sequence from the inside to the outside.

7. A mobile hydrogen storage tank hydrogen filling and unloading system according to claim 6, characterized in that: The hydrogenation reaction module includes a hydrogenation reactor, a pressure pump and a hydrogenation catalyst, and the dehydrogenation reaction module includes a dehydrogenation reactor, a pressure pump and a dehydrogenation catalyst. The dehydrogenation reactor and the hydrogenation reactor are both provided with a spiral water pipe, and the two ends of the water pipe are respectively connected to the heater and the radiator.

8. A mobile hydrogen storage tank hydrogen filling and unloading system according to claim 7, characterized in that: The processing module includes a processing circuit board and a RAM processor. The RAM processor is arranged on the processing circuit board. The processing circuit board is located inside the control box and is electrically connected to the metering valve through a wire.

9. A method for controlling the filling and unloading of hydrogen in a mobile hydrogen storage tank, applied to a mobile hydrogen storage tank filling and unloading system as claimed in any one of claims 5 to 8, characterized in that: The following steps are involved: 1) The external hydrogen is connected to the valve on one side of the hydrogenation reaction module; 2) The hydrogenation reactor and the radiator are powered on and operated, and at the same time, the pressure pump in the hydrogenation reaction module is operated, so that the hydrogen and the dehydrogenated organic liquid in the storage tank pass through the hydrogenation catalyst synchronously, and a chemical reaction occurs to generate a hydrogen-rich organic liquid; 3) The hydrogen-rich organic liquid is injected into the other side of the storage tank to complete the hydrogen charging reaction, which is convenient for transportation; 4) The dehydrogenation reactor and the heater are powered on and operated, and at the same time, the pressure pump in the dehydrogenation reaction module is operated to pump the hydrogen-rich organic liquid through the dehydrogenation catalyst to cause a dehydrogenation reaction to occur, generating hydrogen and dehydrogenated organic liquid; 5) The dehydrogenated organic liquid is pumped back into the storage tank, and the external hydrogen storage device is connected to the valve on one side of the dehydrogenation reactor to complete the hydrogen discharge operation; 6) The flow in the hydrogenation reaction and the dehydrogenation reaction is monitored in the metering module, and the data is transmitted to the processing module for data processing, and the flow changes in the two reaction processes are monitored in the display module.

Images