Induction heating solid-state hydrogen storage and discharge system and hydrogen storage and discharge method
Technical Field
The invention relates to the technical field of hydrogenation, in particular to an induction heating solid hydrogen storage and discharge system and a hydrogen storage and discharge method.
Background
The hydrogen system of putting of hydrogen storage requires comparatively high to its peripheral environmental safety, in the use, can adjust the pressure of pipeline through the relief valve, but most of the cases directly discharge hydrogen to the surrounding environment in, and need regularly overhaul pipeline and part in the in-process of using, avoid follow-up gas leakage appearing in the use, the problem of part trouble etc. however, because hydrogen is flammable and explosive, in the maintenance process, the hydrogen that remains in pipeline and each part is very easily aroused the incident in follow-up maintenance process.
In addition, the existing solid hydrogen storage system (lanthanum nickel system, titanium system, zirconium system, magnesium system and derivative alloy thereof) adopts a heating mode of electrically heating a heat exchange medium and then heating magnesium-based hydride by the heat exchange medium, so that the efficiency is low, and heat waste can be caused in the heating process. Meanwhile, in the heating process, the heating mode of heating the magnesium-based hydride by the heat exchange medium has the problems of uneven heating and slow temperature rise.
Disclosure of Invention
The present invention aims to provide an induction heating solid hydrogen storage and discharge system and a hydrogen storage and discharge method, which are directed to the above-mentioned shortcomings of the prior art.
The invention discloses an induction heating solid-state hydrogen storage and discharge system, which comprises a solid-state hydrogen storage device, a cooling device, a first pressure sensor, a first valve, a filtering device, a first one-way valve, a temperature sensor, a flow sensor, a second pressure sensor and a second valve which are sequentially communicated through a main pipeline, wherein the flow direction of the first one-way valve is from the filtering device to the temperature sensor, an inflation branch is connected in parallel with the filtering device and the first one-way valve, a second one-way valve is arranged on the inflation branch, and the flow direction of the second one-way valve is from the temperature sensor to the solid-state hydrogen storage device;
a bleeding pipe is further arranged on a pipe section between the first pressure sensor and the first valve, a bleeding valve is arranged on the bleeding pipe, a first recovery pipe is arranged on the bleeding pipe, the first recovery pipe is communicated with a gas storage tank, a first recovery valve and a gas storage tank are arranged on the first recovery pipe, the gas storage tank is communicated with the solid-state hydrogen storage device through a second recovery pipe, a second recovery valve and a first air pump are arranged on the second recovery pipe, and a third pressure sensor for detecting the internal pressure of the gas storage tank is arranged on the gas storage tank;
a safety pipe is arranged on the pipeline section between the first valve and the filtering device, a safety valve is arranged on the safety pipe, one end of the safety pipe is connected with the main pipeline, and the other end of the safety pipe is communicated with the first recovery pipe;
the blowing tank is communicated with the main pipeline through a blowing pipeline, inert gas is filled in the blowing tank, one end of the blowing pipeline is communicated with the blowing tank, the other end of the blowing pipeline is connected to a pipeline section between the cooling device and the first valve, a blowing valve is arranged on the blowing pipeline, the blowing tank is communicated with the solid hydrogen storage device through a third recovery pipe, and a third recovery valve and a second air pump are arranged on the third recovery pipe;
the solid-state hydrogen storage device comprises a plurality of solid-state hydrogen storage tanks, the shells of the solid-state hydrogen storage tanks are made of magnetic materials, the solid-state hydrogen storage tanks are filled with hydrogen storage materials, the shells of the solid-state hydrogen storage tanks are made of magnetic materials, insulating layers are arranged on the shells of the solid-state hydrogen storage tanks, electromagnetic coils are arranged on the outer rings of the insulating layers and electrically connected with an external power supply, the solid-state hydrogen storage tanks are provided with temperature sensors used for detecting and displaying the internal region temperatures of the solid-state hydrogen storage tanks, hydrogen pipes are arranged in the solid-state hydrogen storage tanks, one ends of the hydrogen pipes stretch out of the solid-state hydrogen storage tanks, and a plurality of air outlet holes are formed in the pipe walls of the hydrogen pipes at intervals.
Furthermore, a plurality of magnetic fins are arranged on the hydrogen pipe.
Further, the shell of the solid hydrogen storage tank is made of graphite impregnated material.
Further, the hydrogen storage material is magnesium-based solid hydrogen storage.
Furthermore, the system also comprises an intelligent power module and a controller, wherein the electromagnetic coil is electrically connected with the intelligent power module, the intelligent power module is electrically connected with an external power supply, and the controller is electrically connected with the temperature sensor and the intelligent power module.
Furthermore, a pressure reducing valve is arranged on the air blowing pipeline.
Furthermore, an insulating protective layer is arranged outside the electromagnetic coil.
A hydrogen storage and discharge method of the induction heating solid hydrogen storage and discharge system comprises the following hydrogen storage processes: after the interior of the solid hydrogen storage tank is subjected to preliminary electromagnetic heating to the working temperature required by hydrogen storage, a hydrogen inlet and a hydrogen outlet are connected with a hydrogen source, a second valve, a first valve and the solid hydrogen storage tank are opened, a relief valve and an air blowing valve are closed, hydrogen enters the solid hydrogen storage tank through the second valve, a flow sensor, a second one-way valve and the first valve, and the solid hydrogen storage tank is not required to be continuously heated;
the hydrogen discharge process is as follows: continuously heating the inside of a solid hydrogen storage tank to a working temperature required by hydrogen discharge by electromagnetism, connecting a hydrogen inlet and a hydrogen outlet with hydrogen utilization equipment during hydrogen discharge, opening a second valve and a first valve, enabling a hydrogen storage material to generate a rapid dehydrogenation reaction, cooling hydrogen to a proper temperature after passing through a cooling device, then passing through the first valve, a filtering device, a first one-way valve, a flow sensor and the second valve and entering the hydrogen utilization equipment, detecting the pressure of gas in a main pipeline in real time by the first pressure sensor and the second pressure sensor during the hydrogen discharge process, and enabling a safety valve to jump when the pressure in the main pipeline exceeds the set pressure of the safety valve, so that hydrogen enters a gas storage tank through a safety pipe and a first recovery pipe;
the air blowing process is as follows: when the system is used for the first time, is not used for a long time or is used after being overhauled, the system needs to be purged to remove air in the system, a blowing valve, a first valve and a bleeding valve are opened, a first recovery valve and a second valve are closed, air is discharged through a bleeding pipe by using inert gas, after the air is discharged, the bleeding valve is closed, a solid hydrogen storage tank is heated, the inert gas is purged by using hydrogen, and the gas is discharged into a gas storage tank;
when the system needs to be overhauled, the blowing valve and the first recovery valve are opened, the second valve and the bleeding valve are closed, and the gas in the main pipeline is blown into the gas storage tank;
when the third pressure sensor detects that the pressure in the gas storage tank exceeds a preset value, the second recovery valve and the first air pump are opened, any solid-state hydrogen storage tank which does not discharge hydrogen and is not in a full storage state is selectively heated to the hydrogen storage working temperature, the gas in the gas storage tank is recovered, the hydrogen storage is a heat release process, after the recovery is finished, the temperature in the solid-state hydrogen storage tank is reduced, when the temperature is reduced to the preset value, the third recovery valve and the second air pump are opened, and the unabsorbed inert gas in the solid-state hydrogen storage tank is recovered to the air blowing tank.
The solid hydrogen storage tank is made of magnetic materials, the solid hydrogen storage tank body is used as a heating body, a magnetic field generated by the electromagnetic coil acts on the storage tank body to generate vortex to heat the storage tank material in the solid hydrogen storage tank, so that the temperature rise rate of the storage tank material is increased, the heating is uniform, the temperature rise speed is high, and the efficiency of hydrogen storage and hydrogen discharge is improved.
The system of the invention not only can blow the pipeline and the parts to remove the hydrogen and facilitate the subsequent maintenance, but also can recycle the blown and removed hydrogen and inert gas, thereby greatly reducing the cost.
Drawings
FIG. 1 is a schematic diagram of an induction heating solid-state hydrogen storage and discharge system according to the present invention;
fig. 2 is a schematic structural view of the solid-state hydrogen storage tank of the present invention.
1. A main pipeline; 2. a solid-state hydrogen storage device; 3. a cooling device; 4. a first pressure sensor; 5. a first valve; 6. a filtration device; 7. a first check valve; 8. a first temperature sensor; 9. a flow sensor; 10. a second pressure sensor; 11. a second valve; 12. an inflation branch; 13. a second one-way valve; 14. a diffusing pipe; 15. a bleed valve; 16. a first recovery pipe; 17. a gas storage tank; 18. a first recovery valve; 19. a second recovery pipe; 20. a second recovery valve; 21. a first air pump; 22. a third pressure sensor; 23. a safety tube; 24. a safety valve; 25. a gas blowing tank; 26. a gas blowing line; 27. a blowing valve; 28. a third recovery pipe; 29. a third recovery valve; 30. a second air pump; 31. a solid-state hydrogen storage tank; 32. an insulating layer; 33. an electromagnetic coil; 34. a second temperature sensor; 35. a hydrogen pipe; 36. an air outlet; 37. a magnetic fin; 38. an intelligent power supply module; 39. a controller; 40. a pressure reducing valve.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1 and 2, the induction heating solid-state hydrogen storage and discharge system of the present invention comprises a solid-state hydrogen storage device 2, a cooling device 3, a first pressure sensor 4, a first valve 5, a filtering device 6, a first check valve 7, a first temperature sensor 8, a flow sensor 9, a second pressure sensor 10 and a second valve 11 which are sequentially communicated with each other through a main pipeline 1, wherein the flow direction of the first check valve 7 is from the filtering device 6 to the first temperature sensor 8, an inflation branch 12 is connected in parallel to the filtering device 6 and the first check valve 7, a second check valve 13 is arranged on the inflation branch 12, and the flow direction of the second check valve 13 is from the first temperature sensor 8 to the solid-state hydrogen storage device 2;
a diffusing pipe 14 is further arranged on a pipeline section between the first pressure sensor 4 and the first valve 5, a diffusing valve 15 is arranged on the diffusing pipe 14, a first recovery pipe 16 is arranged on the diffusing pipe 14, the first recovery pipe 16 is communicated with a gas storage tank 17, a first recovery valve 18 and the gas storage tank 17 are arranged on the first recovery pipe 16, the gas storage tank 17 is communicated with the solid-state hydrogen storage device 2 through a second recovery pipe 19, a second recovery valve 20 and a first air pump 21 are arranged on the second recovery pipe 19, and a third pressure sensor 22 for detecting the internal pressure of the gas storage tank 17 is arranged on the gas storage tank 17;
a safety pipe 23 is arranged on the pipeline section between the first valve 5 and the filtering device 6, a safety valve 24 is arranged on the safety pipe 23, one end of the safety pipe 23 is connected with the main pipeline 1, and the other end of the safety pipe 23 is communicated with the first recovery pipe 16;
the blowing tank 25 is communicated with the main pipeline 1 through a blowing pipeline 26, inert gas is filled in the blowing tank 25, one end of the blowing pipeline 26 is communicated with the blowing tank 25, the other end of the blowing pipeline 26 is connected to a pipeline section between the cooling device 3 and the first valve 5, the blowing pipeline 26 is provided with a blowing valve 27, the blowing tank 25 is communicated with the solid-state hydrogen storage device 2 through a third recovery pipe 28, and the third recovery pipe 28 is provided with a third recovery valve 29 and a second air pump 30;
the solid hydrogen storage device 2 comprises a plurality of solid hydrogen storage tanks 31, the shell of each solid hydrogen storage tank 31 is made of magnetic materials, hydrogen storage materials are filled in the solid hydrogen storage tanks 31, the shell of each solid hydrogen storage tank 31 is sleeved with an insulating layer 32, the outer ring of each insulating layer 32 is provided with an electromagnetic coil 33, each electromagnetic coil 33 is electrically connected with an external power supply, each solid hydrogen storage tank 31 is provided with a second temperature sensor 34 used for detecting and displaying the temperature of the internal area of the solid hydrogen storage tank 31, a hydrogen pipe 35 is arranged in each solid hydrogen storage tank 31, one end of each solid hydrogen storage tank extends out of the corresponding solid hydrogen storage tank 31, a plurality of air outlet holes 36 are formed in the wall of each hydrogen pipe 35 at intervals, a plurality of magnetic fins 37 are further arranged on each hydrogen pipe 35, the plurality of magnetic fins 37 are inserted into the hydrogen storage materials, and the hydrogen pipe 35 can be conveniently arranged and can further comprise a support piece.
The solid hydrogen storage tank 31 is made of magnetic materials, the body of the solid hydrogen storage tank 31 is used as a heating body, the magnetic field generated by the electromagnetic coil 33 acts on the storage tank body to generate vortex so as to generate heat, and the hydrogen storage materials in the solid hydrogen storage tank 31 are heated, so that the temperature rise rate of the hydrogen storage materials is accelerated.
Hydrogen pipe 35 can also be equipped with a plurality of magnetic fins 37 on, the magnetic field that solenoid 33 produced acts on magnetic fins 37, thereby it generates the vortex and generates heat, heat the hydrogen storage material in the storage tank, make the heating even, the rate of rise in temperature is fast, improve and store hydrogen and put the hydrogen efficiency, when storing hydrogen, hydrogen enters into solid-state hydrogen storage tank 31 through aerifing branch road 12, need not open cooling device 3 at this moment and cool off hydrogen, when external hydrogen supply, the exit of hydrogen storage tank is equipped with cooling device 3, a high temperature hydrogen for cooling hydrogen storage material release, the first temperature sensor 8 of cooling device 3 rear end is used for the temperature in real-time supervision main pipeline 1, filter equipment 6 is arranged in filtering the slight hydrogen storage material dust in the gas, reach and cool down and dust removal processing to it.
The system of the invention not only can blow the pipeline and the parts to remove the hydrogen and facilitate the subsequent maintenance, but also can recycle the blown and removed hydrogen and inert gas, thereby greatly reducing the cost.
The shell of the solid hydrogen storage tank 31 can be an impregnated graphite material, the impregnated graphite material is suitable for working at a temperature of minus 60 ℃ to plus 400 ℃ and has a pressure upper limit of 2.4 MPa, the working requirements of the solid hydrogen storage tank 31 at a temperature upper limit of 350 ℃ and a pressure upper limit of 1.2 MPa can be met, and meanwhile, the impregnated graphite material has high magnetic permeability and can realize electromagnetic heating of the solid hydrogen storage tank 31. Wherein, the hydrogen storage material can be magnesium-based solid hydrogen storage.
The system further comprises an intelligent power supply module 38 and a controller 39, wherein the electromagnetic coil 33 is electrically connected with the intelligent power supply module 38, the intelligent power supply module 38 is electrically connected with an external power supply, and the controller 39 is electrically connected with the second temperature sensor 34 and the intelligent power supply module 38. The intelligent power supply module 38 controls the current and voltage of the input electromagnetic coil 33, and the controller 39 controls the intelligent power supply module 38 according to the set temperature, so that the electromagnetic heating power supply works, and the purposes of arbitrarily setting the required temperature value and realizing accurate temperature control can be achieved.
A pressure relief valve 40 may also be provided in the purge line 26 to control the pressure of the gas in the purge line 26.
The electromagnetic coil 33 may be provided with an insulating protective layer (not shown) to prevent the electromagnetic coil 33 from being damaged, and the insulating protective layer may be detachable.
A hydrogen storage and discharge method of the induction heating solid hydrogen storage and discharge system comprises the following hydrogen storage processes: after the interior of the solid hydrogen storage tank 31 is primarily electromagnetically heated to the working temperature required by hydrogen storage, a hydrogen inlet and a hydrogen outlet are connected with a hydrogen source, the second valve 11, the first valve 5 and the solid hydrogen storage tank 31 are opened, the diffusion valve 15 and the blowing valve 27 are closed, hydrogen enters the solid hydrogen storage tank 31 through the second valve 11, the flow sensor 9, the second one-way valve 13 and the first valve 5, and continuous heating of the solid hydrogen storage tank 31 is not required;
the hydrogen discharge process is as follows: continuously heating the inside of a solid hydrogen storage tank 31 to a working temperature required by hydrogen discharge by electromagnetism, connecting a hydrogen inlet and a hydrogen outlet with hydrogen equipment during hydrogen discharge, opening a second valve 11 and a first valve 5, enabling a hydrogen storage material to generate a rapid dehydrogenation reaction, cooling the hydrogen to a proper temperature after passing through a cooling device 3, then passing through the first valve 5, a filtering device 6, a first one-way valve 7, a flow sensor 9 and the second valve 11 and entering the hydrogen equipment, detecting the pressure of gas in a main pipeline 1 in real time by a first pressure sensor 4 and a second pressure sensor 10 during the hydrogen discharge process, jumping a safety valve 24 when the pressure in the main pipeline 1 exceeds the set pressure of the safety valve 24, and enabling the hydrogen to enter a gas storage tank 17 through a safety pipe 23 and a first recovery pipe 16;
the air blowing process is as follows: when the system is used for the first time, is not used for a long time or is used after being overhauled, the system needs to be purged for removing air in the system, the blowing valve 27, the first valve 5 and the diffusion valve 15 are opened, the first recovery valve 18 and the second valve 11 are closed, the air is firstly exhausted through the diffusion pipe 14 by using inert gas, after the air is exhausted, the diffusion valve 15 is closed, the solid hydrogen storage tank 31 is heated, the inert gas is purged by using hydrogen, and the gas is exhausted into the gas storage tank 17;
when the system needs to be overhauled, the blowing valve 27 and the first recovery valve 18 are opened, the second valve 11 and the bleeding valve 15 are closed, and the gas in the main pipeline 1 is blown into the gas storage tank 17;
when the third pressure sensor 22 detects that the pressure in the gas storage tank 17 exceeds a preset value, the second recovery valve 20 and the first air pump 21 are opened, any solid-state hydrogen storage tank 31 which does not discharge hydrogen and is not in a full storage state is selectively heated to a hydrogen storage working temperature, gas in the gas storage tank 17 is recovered, the hydrogen storage is a heat release process, after the recovery is finished, the temperature in the solid-state hydrogen storage tank 31 is reduced, and when the temperature is reduced to the preset value, the third recovery valve 29 and the second air pump 30 are opened, and inert gas which is not absorbed in the solid-state hydrogen storage tank 31 is recovered to the air blowing tank 25.
The system of the invention not only can blow the pipeline and the parts to remove the hydrogen and facilitate the subsequent maintenance, but also can recycle the blown and removed hydrogen and inert gas, thereby greatly reducing the cost.
The above is not relevant and is applicable to the prior art.
While certain specific embodiments of the present invention have been described in detail by way of illustration, it will be understood by those skilled in the art that the foregoing is illustrative only and is not limiting of the scope of the invention, as various modifications or additions may be made to the specific embodiments described and substituted in a similar manner by those skilled in the art without departing from the scope of the invention as defined in the appending claims. It should be understood by those skilled in the art that any modifications, equivalents, improvements and the like made to the above embodiments in accordance with the technical spirit of the present invention are included in the scope of the present invention.