CN114380277A - Stable control hydrogen production device - Google Patents

Stable control hydrogen production device Download PDF

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Publication number
CN114380277A
CN114380277A CN202210293319.2A CN202210293319A CN114380277A CN 114380277 A CN114380277 A CN 114380277A CN 202210293319 A CN202210293319 A CN 202210293319A CN 114380277 A CN114380277 A CN 114380277A
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water outlet
water
reaction chamber
reaction
follow
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CN114380277B (en
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李昕
谭波
陈思安
王泽渊
曾辉
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Wuhan Institute of Marine Electric Propulsion China Shipbuilding Industry Corp No 712 Institute CSIC
Wuhan Hydrogen Energy and Fuel Cell Industry Technology Research Institute Co Ltd
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Wuhan Institute of Marine Electric Propulsion China Shipbuilding Industry Corp No 712 Institute CSIC
Wuhan Hydrogen Energy and Fuel Cell Industry Technology Research Institute Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B3/00Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
    • C01B3/02Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
    • C01B3/06Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of inorganic compounds containing electro-positively bound hydrogen, e.g. water, acids, bases, ammonia, with inorganic reducing agents
    • C01B3/065Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of inorganic compounds containing electro-positively bound hydrogen, e.g. water, acids, bases, ammonia, with inorganic reducing agents from a hydride
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B3/00Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
    • C01B3/02Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
    • C01B3/06Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of inorganic compounds containing electro-positively bound hydrogen, e.g. water, acids, bases, ammonia, with inorganic reducing agents
    • C01B3/08Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of inorganic compounds containing electro-positively bound hydrogen, e.g. water, acids, bases, ammonia, with inorganic reducing agents with metals
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00Fuel cells; Manufacture thereof
    • H01M8/06Combination of fuel cells with means for production of reactants or for treatment of residues
    • H01M8/0606Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/16Controlling the process
    • C01B2203/169Controlling the feed
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product

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  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Inorganic Chemistry (AREA)
  • Sustainable Energy (AREA)
  • Sustainable Development (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
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Abstract

The invention relates to a stably controlled hydrogen production device, which comprises a reaction tank and a follow-up water inlet assembly, wherein the reaction tank is provided with a water inlet and a gas outlet and is used for filling raw materials required by hydrogen production reaction; the follow-up water inlet assembly is arranged in the reaction tank and comprises a deformable communication channel, a water outlet end and a follow-up support, wherein the two ends of the deformable communication channel are communicated with the water inlet and the water outlet end, the follow-up support is connected with the water outlet end, the follow-up support is used for being arranged on the upper surface of the raw material and allowing gas emulsion generated by reaction to pass through, and the follow-up support can drive the water outlet end to descend along with the reduction of the raw material so as to keep the water amount contacted with the raw material unchanged. Compared with the prior art, the method has the advantages that the water amount actually participating in the reaction is not influenced by the factors of reduction of reaction raw materials, increase of gas emulsion and the like, so that an operator can control the reaction rate by only adjusting the water inflow of the water inlet, further stably control the hydrogen production rate, and have good application prospect.

Description

Stable control hydrogen production device
Technical Field
The invention relates to the technical field of hydrogen preparation, in particular to a stably controlled hydrogen production device.
Background
Hydrogen energy is a key secondary energy, and various industries have great hope for research, development and use of the hydrogen energy. The hydrogen energy and fuel cell assembly is particularly suitable for portable clean energy products, can replace the traditional working battery and generator equipment, and is widely applied to a plurality of industry fields. The key problem restricting the development of hydrogen fuel cells is the hydrogen production technology, and the main requirements of a hydrogen production system include high safety and stability, large hydrogen storage density, low cost and convenient application. At present, hydrogen storage technologies are generally divided into: hydrogen production by water electrolysis, hydrogen production by fossil raw materials, biological hydrogen production, solar direct photoelectric hydrogen production, solid hydrolysis hydrogen production and the like. The solid hydrolysis hydrogen production has the advantages of high purity of the produced hydrogen, no need of purification, controllable hydrogen production rate and the like, and solid raw materials such as sodium borohydride and the like have higher hydrogen storage density, so the method is considered to be a hydrogen production technology with great application prospect.
For example, chinese patent application CN102167285A discloses a portable safe and controllable hydrolysis hydrogen production device, which comprises a reactor for storing solid reaction materials, a water storage tank and a pipeline, wherein a micro pump for pumping water in the water storage tank into the reactor is arranged between the reactor and the water storage tank; the reactor is provided with an air outlet for outputting hydrogen and a water inlet for inputting reaction water; the air outlet is communicated with the pressure sensor and the condensation dryer; the pressure sensor and the micro pump are respectively electrically connected with the control circuit; the condensation dryer is provided with a hydrogen output pipe. The invention has the following beneficial effects: 1. has the advantages of controllable hydrogen production rate, short response time, high utilization rate of solid reaction materials and the like. Provides hydrogen source for hydrogen fuel cell and portable power source in various industries. 2. The hydrogen production system has the advantages of simple structure, easiness in operation, controllable hydrogen production, no pollution, low cost, safety and reliability, and is suitable for providing hydrogen sources for hydrogen fuel cells and portable power supplies in various industries.
However, the existing hydrogen production devices adopting the solid hydrolysis hydrogen production mode have some disadvantages to be solved, and the disadvantages are as follows: the hydrolysis of raw materials generally adopts the regulation of water inlet speed to control the hydrogen production rate, and substances such as gas, products and the like generated in the reaction process of the raw materials can form gas emulsions above the raw materials with water or raw material powder, and the gas emulsions can gradually increase along with the reaction, and in addition, the raw materials gradually decrease along with the reaction, so that the distance between a water inlet of the hydrogen production device and the raw materials can gradually increase, the normal contact of the water and the raw materials is obstructed by the increased interval between the water inlet and the raw materials and more gas emulsions, and further, the water quantity which actually contacts the solid raw materials and participates in the reaction is difficult to control, thereby causing the problem of unstable hydrogen production rate.
Disclosure of Invention
In view of the above, there is a need for a hydrogen production apparatus with stable control, which can solve the problem of controlling the amount of water actually contacting with the solid reaction material.
The invention provides a stable controlled hydrogen production device, comprising:
the reaction tank is provided with a water inlet and a gas outlet and is used for filling raw materials required by the hydrogen production reaction;
the follow-up water inlet assembly is arranged in the reaction tank and comprises a deformable communication channel, a water outlet end and a follow-up support; the two ends of the deformable communication channel are communicated with the water inlet and the water outlet end head and used for guiding water to the surface of the raw material, and the follow-up support is connected with the water outlet end head;
the follow-up support is arranged on the upper surface of the raw material in a lapping mode and is used for gas emulsion generated by reaction to pass through, and when the raw material is reduced, the follow-up support drives the water outlet end to be lowered so that the raw material and water are kept in a preset contact area.
Preferably, the deformable communication channel is telescopic, and the telescopic direction of the deformable communication channel is vertically arranged.
Preferably, the deformable communicating channel comprises an inner pipe and an outer pipe which are vertically arranged, one end of the inner pipe is communicated with the water inlet, one end of the outer pipe is slidably sleeved at the other end of the inner pipe, and the other end of the outer pipe is communicated with the water outlet end.
Preferably, the retort includes outer jar of body and interior reaction chamber, the top of outer jar of body is seted up the water inlet with the gas outlet, arrange in the interior reaction chamber the outer jar of body, interior reaction chamber open-top, the top of interior reaction chamber with the inner wall interval at outer jar of body top sets up, the lateral wall of interior reaction chamber with the inside wall interval of the outer jar of body sets up for discharge the gas emulsion that raw materials reaction produced to the outer jar internal, interior reaction chamber is used for filling the raw materials, the follow-up support with the water outlet end all movably set up in the interior reaction chamber.
Preferably, the follow-up support comprises a connecting beam and a supporting frame, two ends of the connecting beam are respectively connected with the water outlet end and the supporting frame, the supporting frame is a circular frame, a plane where the circular outline of the supporting frame is located is parallel to a horizontal plane, and the supporting frame is abutted to the surface of the raw material.
Preferably, the inner reaction chamber has a cylindrical shape with an open top, and the circumferential surface of the support frame abuts against the inner wall of the inner reaction chamber.
Preferably, the retort still includes a plurality of connecting rods, the one end of connecting rod is connected the lateral wall of interior reaction chamber, and is a plurality of the connecting rod encircles the lateral wall interval setting of interior reaction chamber, the other end of connecting rod is connected the inside wall of the outer jar of body, the bottom of interior reaction chamber with the bottom interval setting of the outer jar of body.
Preferably, the reaction tank further comprises a waste liquid discharge port, a waste liquid water pump and a safety valve, the waste liquid discharge port is formed in the bottom of the side wall of the outer tank body, the waste liquid water pump is arranged on the outer side of the outer tank body and communicated with the waste liquid discharge port, and the safety valve is arranged at the top of the outer tank body.
Preferably, still include cooling module, cooling module includes cooling casing, cooling water pump, control box and temperature element, the cooling casing wraps up the lateral wall of interior reacting chamber, cooling water inlet and cooling water outlet have been seted up at the top of the outer jar of body, the cooling water inlet with the cooling water outlet all communicates the cooling casing with the space between the interior reacting chamber lateral wall, cooling water pump's play water end intercommunication the cooling water inlet, the control box electricity is connected cooling water pump is used for controlling its flow, temperature element inserts and locates the outer jar of body and electricity are connected the control box.
Preferably, the water outlet end is in a circular tubular shape, one end of the water outlet end is communicated with the water inlet, and the other end of the water outlet end extends towards the bottom of the reaction tank and is abutted against the surface of the raw material.
According to the stably controlled hydrogen production device provided by the invention, water is sequentially introduced into the reaction tank from the water inlet, the deformable communicating channel and the water outlet end, so that the water is contacted with raw materials such as solid reactants and catalysts in the reaction tank, and then hydrolysis reaction is carried out to generate hydrogen, and the hydrogen is discharged from the gas outlet. Along with the reaction, the raw materials can be reduced, the follow-up support in the follow-up water inlet assembly can be lowered along with the reduction of the raw materials, and then the water outlet end is driven to be lowered, so that the water outlet position of the water outlet end and the surface of the raw materials are always kept at relatively fixed positions, the water quantity in contact with the raw materials is kept not to be changed along with the reduction of the raw materials, and the water quantity actually participating in the reaction becomes controllable. Compared with the prior art, the method has the advantages that the water amount actually participating in the reaction is not influenced by the factors of reduction of reaction raw materials, increase of gas emulsion and the like, so that an operator can control the reaction rate by only adjusting the water inflow of the water inlet, further stably control the hydrogen production rate, and have good application prospect.
Drawings
FIG. 1 is a schematic diagram of one embodiment of a stable controlled hydrogen plant provided by the present invention;
FIG. 2 is a front view of a follow-up water intake assembly in an embodiment of a stable controlled hydrogen plant provided by the present invention;
FIG. 3 is a bottom view of a follow-up water intake assembly in an embodiment of a stable controlled hydrogen plant provided by the present invention.
Detailed Description
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate preferred embodiments of the invention and together with the description, serve to explain the principles of the invention and not to limit the scope of the invention.
With reference to fig. 1 to 3, the invention provides a stable control hydrogen production device, which comprises a reaction tank 1 and a follow-up water inlet assembly 2, wherein the reaction tank 1 is provided with a water inlet 11 and a gas outlet 12 for filling raw materials required by hydrogen production reaction. The follow-up water inlet assembly 2 is arranged in the reaction tank 1 and comprises a deformable communication channel 21, a water outlet end 22 and a follow-up support 23, two ends of the deformable communication channel 21 are communicated with a water inlet 11 and the water outlet end 22 and used for guiding water to the surface of a raw material, the deformable communication channel 21 can deform along with the position change of the water outlet end 22, the follow-up support 23 is connected with the water outlet end 22, the follow-up support 23 is used for being placed on the upper surface of the raw material and allowing gas emulsion generated by reaction to pass through, and the follow-up support 23 can drive the water outlet end 22 to descend along with the reduction of the raw material so as to ensure that the water quantity contacted with the raw material is maintained in a preset contact area. The preset contact area refers to a range of water amount which is expected to be capable of contacting with the raw material and actually participating in the reaction, and includes a plurality of factors of the contact area with the raw material and the flow rate of the water, and the range in the embodiment is not substantially interfered by other factors except artificial regulation.
In this embodiment, water is introduced into the reaction tank 1 from the water inlet 11, the deformable communication channel 21 and the water outlet 22 in sequence, so that the water contacts with the solid reactant, the catalyst and other raw materials in the reaction tank 1, and the hydrolysis reaction occurs to generate hydrogen, and the hydrogen is discharged from the gas outlet 12. Along with the reaction, the raw materials are reduced, the follow-up bracket 23 in the follow-up water inlet component 2 is lowered along with the reduction of the raw materials, and then the water outlet end 22 is driven to be lowered, so that the water outlet position of the water outlet end 22 and the surface of the raw materials are always kept at relatively fixed positions, the water quantity contacted with the raw materials is kept not to be changed along with the reduction of the raw materials, and the water quantity actually participating in the reaction becomes controllable.
In this embodiment, the raw material is a mixture of a solid reactant and a substance required for hydrogen production, such as a catalyst, and the solid reactant may be sodium borohydride, aluminum, magnesium hydride, magnesium, or the like, and most of them are solid powder, and may settle at the bottom of water and allow the follower holder 23 to be placed thereon. Of course, the material may be a liquid if the conditions permit, and the follower holder 23 may float on the surface of the material and move with the material.
As a preferred embodiment, the reaction tank 1 in this embodiment includes an outer tank 13 and an inner reaction chamber 14, a water inlet 11 and a gas outlet 12 are formed at the top of the outer tank 13, the inner reaction chamber 14 is disposed in the outer tank 13, the top of the inner reaction chamber 14 is open, the top of the inner reaction chamber 14 and the inner wall of the top of the outer tank 13 are disposed at intervals, the outer sidewall of the inner reaction chamber 14 and the inner sidewall of the outer tank 13 are disposed at intervals, and are used for discharging a gas emulsion generated by a reaction of raw materials into the outer tank 13, the inner reaction chamber 14 is used for filling the raw materials, and a follower support 23 and a water outlet 22 are movably disposed in the inner reaction chamber 14.
The gas emulsion produced in the reaction process, namely the milky mixture of gas and liquid or powder and other substances, continuously expands under the action of the gas and continuously rises under the action of the bubbles. Along with the reaction, the gas emulsion can be continuously accumulated on the surface of the raw material, the liquid level in the inner reaction chamber 14 can be continuously increased, and the increased gas emulsion can overflow to cross the top opening of the inner reaction chamber 14, fall or flow down along the outer wall of the inner reaction chamber 14 and be converged to the bottom of the outer tank body 13, so that the risk that the gas outlet 12 is blocked by the excessive gas emulsion to cause the overhigh pressure in the reaction tank 1 is avoided.
The inner reaction chamber 14 in this embodiment is a circular cylinder with an open top, but the inner reaction chamber 14 may be designed in other shapes as needed.
As a preferred embodiment, the reaction tank 1 in this embodiment further includes a plurality of connecting rods 15, one end of each connecting rod 15 is connected to the outer sidewall of the inner reaction chamber 14, the plurality of connecting rods 15 are spaced around the outer sidewall of the inner reaction chamber 14, the other end of each connecting rod 15 is connected to the inner sidewall of the outer tank 13, and the bottom of the inner reaction chamber 14 and the bottom of the outer tank 13 are spaced.
The connecting rods 15 can realize the overhead arrangement of the inner reaction chamber 14 in the outer tank body 13, and the plurality of connecting rods 15 are arranged at intervals to enable the gas emulsion to normally pass through, so that spaces for temporarily storing the gas emulsion are arranged in the outer tank body 13 and below the inner reaction chamber 14, and the disposable reaction amount of the whole device is improved. It will be readily appreciated that other means of connecting the inner reaction chamber 14 to the outer vessel 13 may be used, such as welding the inner reaction chamber 14 directly to the bottom surface of the outer vessel 13.
Further, the reaction tank 1 in this embodiment further includes a waste liquid discharge port 16, a waste liquid water pump 17, and a safety valve 18, the waste liquid discharge port 16 is opened at the bottom of the side wall of the outer tank 13, the waste liquid water pump 17 is disposed at the outer side of the outer tank 13 and is communicated with the waste liquid discharge port 16, and the safety valve 18 is disposed at the top of the outer tank 13.
The waste liquid outlet 16 is used for removing the gas emulsion in the outer tank 13, and the gas emulsion can be sucked and pressed and conveyed by a waste liquid water pump 17, and the waste liquid water pump 17 can also be matched with parts such as a computer control system, a sensor and the like, so that the simulation calculation can be realized according to the yield of reaction products, the waste liquid is periodically started to be discharged, and the continuous automatic control can be realized.
The safety valve 18 is used for pressure relief in emergency to ensure safety of reaction, and may be any valve used for safety, such as an overflow valve.
In a preferred embodiment, the two ends of the deformable communication channel 21 in this embodiment are respectively connected to the water inlet 11 and the water outlet 22 to communicate the two. When the water inlet 11 and the water outlet 22 are communicated, the deformable communication channel 21 also has deformation functions such as bending and stretching, and can keep a communication state, so that the follow-up of the water outlet 22 is effectively realized. The deformable communication channel 21 can be realized by using an existing telescopic pipe such as a corrugated pipe, and can also be realized by using a hose or designed according to needs, and only the position of the water outlet end head 22 can be changed by ensuring that the deformable communication channel can be deformed during communication.
It should be noted that, in practice, when the water outlet 22 is connected to the water inlet 11 by a hose, the hose may be bent when the water outlet 22 moves. Although this also enables the connection between the outlet 22 and the inlet 11, the hose may be bent to affect the normal flow of water, and the hose filled with water may exert some resistance to the normal movement of the outlet 22, affecting the control effect, so that it is actually recommended to use the flexible communication channel 21. For example, the deformable communication passage 21 in the present embodiment is stretchable and contractible, and the stretching direction thereof is vertically arranged.
Specifically, the deformable communication channel 21 in this embodiment includes an inner tube 211 and an outer tube 212 that are vertically disposed, one end of the inner tube 211 communicates with the water inlet 11, one end of the outer tube 212 is slidably sleeved on the other end of the inner tube 211, and the other end of the outer tube 212 communicates with the water outlet 22. The inner tube 211 and the outer tube 212 enable the deformable communication channel 21 to have a rigid structure, and compared with flexible bellows and other telescopic tubes, the rigid structure can enable the moving tracks of the follow-up support 23 and the water outlet end 22 to be more fixed, so that the water quantity control is more stable.
In a preferred embodiment, the water outlet end 22 in this embodiment is a circular tube, one end of the water outlet end 22 is connected to the water inlet 11, and the other end extends toward the bottom of the reaction tank 1 and abuts against the surface of the raw material. In practice, the water outlet end 22 may be implemented by any workpiece that can be used for spraying water, such as a nozzle, and the water spraying port of the workpiece may directly contact the surface of the raw material to avoid the influence of the gas emulsion on the water outlet flow rate, and when the conditions allow, for example, when some errors exist, the water outlet end 22 may also leave a part of space with the surface of the raw material to prevent the raw material from sticking or sucking back into the water outlet end 22.
In addition, the water outlet end 22 in the embodiment can be integrally formed with the outer pipe 212, so that the manufacturing is convenient, the water outlet end 22 does not need to be purchased additionally, and the cost of the hydrogen production device with stable control is reduced.
As a preferred embodiment, the follower support 23 in this embodiment includes a connection beam 231 and a support frame 232, two ends of the connection beam 231 are respectively connected to the water outlet head 22 and the support frame 232, the support frame 232 is a circular frame, a plane where a circular contour of the support frame 232 is located is parallel to a horizontal plane, and the support frame 232 abuts against a surface of the raw material.
The connecting beam 231 is a rod-shaped workpiece, a plurality of connecting beams 231 can be arranged to connect the supporting frame 232 with the water outlet end 22, and a certain gap is reserved to ensure that the follow-up support 23 cannot completely cover the surface of the raw material, so that the generated gas emulsion can normally pass through and cannot jack up the whole follow-up support 23.
Similarly, the supporting frame 232 is a frame structure, preferably a circular frame which is convenient for manufacturing and processing, and can reduce pressure to avoid sinking into the raw material, so that the supporting frame can be placed on the surface of the raw material without covering the raw material, and the generated gas emulsion is ensured to overflow. In addition, the circumferential surface of the supporting frame 232 in this embodiment abuts against the inner side wall of the inner reaction chamber 14, so that the inner reaction chamber 14 can play a guiding role, the follow-up support 23 is ensured to move along a fixed track, and the stability of water quantity during water supply is improved.
It can be understood that, in practice, the following support 23 may be implemented by using other structures according to specific needs, and only needs to ensure that it can be settled along with the surface of the raw material without being affected by the gas emulsion, such as a sieve plate, a filter screen, etc., and if the liquid raw material is selected to produce hydrogen, the following support 23 may be a floating ball having a density smaller than that of the raw material and larger than that of the water and gas emulsion.
As a preferred embodiment, the hydrogen production apparatus with stable control in this embodiment further includes a cooling assembly 3, the cooling assembly 3 includes a cooling housing 31, a cooling water pump 32, a control box 33 and a temperature measuring element 34, the cooling housing 31 covers the outer side wall of the inner reaction chamber 14, the top of the outer tank 13 is provided with a cooling water inlet and a cooling water outlet, the cooling water inlet and the cooling water outlet are both communicated with the space between the cooling housing 31 and the outer side wall of the inner reaction chamber 14, the water outlet of the cooling water pump 32 is communicated with the cooling water inlet, the cooling water outlet is communicated with the water discharge tank, the control box 33 is electrically connected with the cooling water pump 32 for controlling the flow rate thereof, and the temperature measuring element 34 is inserted in the outer tank 13 and electrically connected with the control box 33.
The temperature measuring element 34 is a sheathed thermocouple, inserted into the reaction tank 1, and electrically connected to the control box 33. The control box 33 can be any existing controller which is matched with the temperature measuring element 34 and the cooling water pump 32, or an on-site upper computer. The temperature measuring element 34 can detect the temperature in the reaction tank 1 and feed back to the control box 33, and the control box 33 controls the cooling water pump 32 to control the water flow in the cooling shell 31, thereby controlling the temperature. According to the invention, a large amount of heat is generated in the reaction process to cause the temperature of the reaction zone to rise, the speed of the cooling water pump is adjusted by combining experience numerical values according to the temperature rise condition measured by the temperature measuring element 34, if the temperature is too high, the flow speed of the cooling water is increased, and if the temperature is reduced, the flow speed of the cooling water is reduced, so that the reaction temperature is controlled, the hydrogen production rate is controlled to be stable, and the stability of the device during reaction is further ensured.
According to the hydrogen production device with stable control, water is sequentially led into the reaction tank 1 from the water inlet 11, the deformable communication channel 21 and the water outlet end 22, so that the water is contacted with raw materials such as solid reactants and catalysts in the reaction tank 1, hydrolysis reaction is further carried out to generate hydrogen, and the hydrogen is discharged from the gas outlet 12. Along with the reaction, the raw materials are reduced, the follow-up bracket 23 in the follow-up water inlet component 2 is lowered along with the reduction of the raw materials, and then the water outlet end 22 is driven to be lowered, so that the water outlet position of the water outlet end 22 and the surface of the raw materials are always kept at relatively fixed positions, the water quantity contacted with the raw materials is kept not to be changed along with the reduction of the raw materials, and the water quantity actually participating in the reaction becomes controllable. Compared with the prior art, the method has the advantages that the water amount actually participating in the reaction is not influenced by the factors of reduction of reaction raw materials, increase of gas emulsion and the like, so that an operator can control the reaction rate by only adjusting the water inflow of the water inlet 11, further stably control the hydrogen production rate, and have good application prospect.
The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts among the embodiments are referred to each other.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.

Claims (10)

1. A stable controlled hydrogen plant, comprising:
the reaction tank is provided with a water inlet and a gas outlet and is used for filling raw materials required by the hydrogen production reaction;
the follow-up water inlet assembly is arranged in the reaction tank and comprises a deformable communication channel, a water outlet end and a follow-up support; the two ends of the deformable communication channel are communicated with the water inlet and the water outlet end head and used for guiding water to the surface of the raw material, and the follow-up support is connected with the water outlet end head;
the follow-up support is arranged on the upper surface of the raw material in a lapping mode and is used for gas emulsion generated by reaction to pass through, and when the raw material is reduced, the follow-up support drives the water outlet end to be lowered so that the raw material and water are kept in a preset contact area.
2. The apparatus for stably controlled production of hydrogen as claimed in claim 1, wherein the deformable communication passage is retractable, and the direction of the retraction of the deformable communication passage is vertically arranged.
3. The hydrogen production plant with stable control according to claim 2, wherein the deformable communication channel comprises an inner tube and an outer tube which are vertically arranged, one end of the inner tube is communicated with the water inlet, one end of the outer tube is slidably sleeved on the other end of the inner tube, and the other end of the outer tube is communicated with the water outlet end.
4. The stable control hydrogen production plant according to claim 1, characterized in that the reaction tank comprises an outer tank body and an inner reaction chamber, the water inlet and the gas outlet are arranged at the top of the outer tank body, the inner reaction chamber is arranged in the outer tank body, the top of the inner reaction chamber is opened, the top of the inner reaction chamber and the inner wall of the top of the outer tank body are arranged at intervals, the outer side wall of the inner reaction chamber and the inner side wall of the outer tank body are arranged at intervals and used for discharging gas emulsion generated by reaction of raw materials into the outer tank body, the inner reaction chamber is used for filling raw materials, and the follow-up support and the water outlet end are movably arranged in the inner reaction chamber.
5. The hydrogen production plant with stable control according to claim 4, characterized in that the follow-up support comprises a connecting beam and a supporting frame, two ends of the connecting beam are respectively connected with the water outlet end and the supporting frame, the supporting frame is a circular frame, the plane where the circular outline of the supporting frame is located is parallel to the horizontal plane, and the supporting frame is abutted against the surface of the raw material.
6. The apparatus for stably controlled production of hydrogen as claimed in claim 5, wherein the inner reaction chamber is in the shape of a circular cylinder with an open top, and the circumferential surface of the support frame abuts against the inner side wall of the inner reaction chamber.
7. The stable controlled hydrogen production device according to any one of claims 4 to 6, characterized in that the reaction tank further comprises a plurality of connecting rods, one end of each connecting rod is connected with the outer side wall of the inner reaction chamber, the plurality of connecting rods are arranged around the outer side wall of the inner reaction chamber at intervals, the other end of each connecting rod is connected with the inner side wall of the outer tank body, and the bottom of the inner reaction chamber and the bottom of the outer tank body are arranged at intervals.
8. The apparatus for stably controlled production of hydrogen as claimed in any one of claims 4 to 6, wherein the reaction tank further comprises a waste liquid discharge port, a waste liquid water pump and a safety valve, the waste liquid discharge port is opened at the bottom of the side wall of the outer tank, the waste liquid water pump is arranged outside the outer tank and communicated with the waste liquid discharge port, and the safety valve is arranged at the top of the outer tank.
9. The stably controlled hydrogen production plant according to any one of claims 4 to 6, further comprising a cooling assembly, wherein the cooling assembly comprises a cooling shell, a cooling water pump, a control box and a temperature measuring element, the cooling shell covers the outer side wall of the inner reaction chamber, the top of the outer tank body is provided with a cooling water inlet and a cooling water outlet, the cooling water inlet and the cooling water outlet are both communicated with the space between the cooling shell and the outer side wall of the inner reaction chamber, the water outlet end of the cooling water pump is communicated with the cooling water inlet, the control box is electrically connected with the cooling water pump for controlling the flow rate thereof, and the temperature measuring element is inserted in the outer tank body and electrically connected with the control box.
10. The hydrogen production plant with stable control according to any one of claims 1 to 6, wherein the water outlet end is in a circular tubular shape, one end of the water outlet end is communicated with the water inlet, and the other end of the water outlet end extends towards the bottom of the reaction tank and is abutted against the surface of the raw material.
CN202210293319.2A 2022-03-24 2022-03-24 Stable control hydrogen production device Active CN114380277B (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006327871A (en) * 2005-05-26 2006-12-07 Nitto Denko Corp Apparatus and method for generating hydrogen
CN101125638A (en) * 2007-09-07 2008-02-20 汉能科技有限公司 Hydrogen generator
CN110556555A (en) * 2018-05-31 2019-12-10 吉林大学 Fuel cell system applying on-line hydrogen supply based on water self-circulation

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006327871A (en) * 2005-05-26 2006-12-07 Nitto Denko Corp Apparatus and method for generating hydrogen
CN101125638A (en) * 2007-09-07 2008-02-20 汉能科技有限公司 Hydrogen generator
CN110556555A (en) * 2018-05-31 2019-12-10 吉林大学 Fuel cell system applying on-line hydrogen supply based on water self-circulation

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