CN212050519U - Continuous hydrogen production system based on pressure control - Google Patents
Continuous hydrogen production system based on pressure control Download PDFInfo
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- CN212050519U CN212050519U CN202020774598.0U CN202020774598U CN212050519U CN 212050519 U CN212050519 U CN 212050519U CN 202020774598 U CN202020774598 U CN 202020774598U CN 212050519 U CN212050519 U CN 212050519U
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
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Abstract
The utility model provides a continuous hydrogen production system based on pressure control relates to hydrogen production equipment technical field. The continuous hydrogen production system based on pressure control comprises a water tank, a reaction device, a pressurizing device and a hydrogen storage device; the reaction device is used for storing hydrogen production materials which react with water; the pressurizing device is connected with the water tank and is used for keeping the pressure in the water tank constant; the hydrogen storage device is connected with the reaction device and is used for collecting hydrogen; the bottom of the water tank is communicated with the bottom of the reaction device through a first pipeline, the reaction device is communicated with the hydrogen storage device through a second pipeline, a first control valve is arranged on the first pipeline, and a second control valve is arranged on the second pipeline. The utility model discloses a control water tank makes the continuous going on of reaction with reaction unit's pressure difference, and simple structure, convenient operation and cost are lower.
Description
Technical Field
The utility model relates to a hydrogen production equipment technical field especially relates to a continuous hydrogen production system based on pressure control.
Background
The existing hydrogen production reaction device is based on the principle that a solid hydrolysis hydrogen production material reacts with an aqueous solution to produce hydrogen. The solid hydrolysis hydrogen production material reacts with water in a violent exothermic reaction, so that the reaction speed is high, the reaction time is short, and hydrogen cannot be continuously supplied without interruption. The existing hydrogen production reaction device has the disadvantages of complex structure, inconvenient operation and higher cost, so that the hydrogen production reaction device which can control the reaction process and the reaction speed and has a simple structure and can continuously generate hydrogen is urgently needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provide a continuous hydrogen production system based on pressure control, which is used for solving the problems in the prior art.
In order to solve the above problem, the utility model provides a:
a continuous hydrogen production system based on pressure control, comprising: the device comprises a water tank, a reaction device, a pressurizing device and a hydrogen storage device;
the reaction device is used for storing hydrogen production materials which react with water;
the pressurizing device is connected with the water tank and is used for keeping the pressure in the water tank constant;
the hydrogen storage device is connected with the reaction device and is used for buffering and collecting hydrogen;
the bottom of the water tank is communicated with the bottom of the reaction device through a first pipeline, the reaction device is communicated with the hydrogen storage device through a second pipeline, a first control valve is arranged on the first pipeline, and a second control valve is arranged on the second pipeline.
As a further improvement of the continuous hydrogen production system based on pressure control, the first control valve is a flow regulating valve.
As a further improvement of the continuous hydrogen production system based on pressure control, the second control valve is a stop valve.
As a further improvement of the continuous hydrogen production system based on pressure control, when the pressure in the reaction device reaches a preset pressure value, the stop valve is controlled to open and output hydrogen.
As a further improvement of the continuous hydrogen production system based on pressure control, the preset pressure value is equal to the constant pressure of the water tank.
As a further improvement of the continuous hydrogen production system based on pressure control, a third control valve is further arranged on the second pipeline, and the third control valve is a one-way valve.
As a further improvement of the continuous hydrogen production system based on pressure control, the hydrogen storage device comprises a heat exchanger and a buffer tank, wherein the heat exchanger is used for hydrogen heat dissipation, and the buffer tank is used for storing hydrogen.
As a further improvement of the continuous hydrogen production system based on pressure control, the pressurizing device is an air pump, and the air pump enables the pressure in the water tank to be constant at 0.1MPa-1 MPa.
As a further improvement of the continuous hydrogen production system based on pressure control, a drain valve is arranged at the bottom of the reaction device.
As a further improvement of the continuous hydrogen production system based on pressure control, the hydrogen production material is a material rod or a material disk, and the material rod or the material disk is distributed from the bottom of the reaction device along the vertical direction.
The utility model has the advantages that: the utility model provides an utilize method of pressure control hydrogen preparation process, water tank bottom and reaction unit bottom are through first pipeline intercommunication, and reaction unit passes through the second pipeline intercommunication with hydrogen storage device, and in the reaction process, the pressure in the water tank keeps invariable, and liquid level in the reaction unit is along with pressure variation, and the pressure balance through control water tank and reaction unit makes the reaction continuously stable go on, and simple structure, convenient operation and cost are lower.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 shows a schematic diagram of the overall structure of a continuous hydrogen production system based on pressure control;
FIG. 2 shows a state diagram of the water tank and the reaction vessel before reaction;
FIG. 3 shows a state diagram of the water tank and the reaction vessel in the reaction;
fig. 4 shows a state diagram of the water tank and the reaction vessel at the end of the reaction.
Description of the main element symbols:
1-an air pump; 2-a water tank; 21-pressure gauge; 3-a first pipeline; 31-a first control valve; 4-a reaction device; 41-material rod; 42-a pressure sensor; 43-a temperature sensor; 44-a drain valve; 5-a second pipeline; 51-a second control valve; 52-a third control valve; 6-a radiator; 7-a buffer tank; 8-hydrogen output path; 81-a second stop valve; 82-second check valve.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Examples
As shown in fig. 1, the present embodiment provides a continuous hydrogen production system based on pressure control, which will be referred to as "continuous hydrogen production system" hereinafter for convenience of description. The continuous hydrogen production system comprises a pressurizing device, a water tank 2, a reaction device 4 and a hydrogen storage device. The pressurizing device is connected with the water tank 2, pressurizes the water tank 2 and keeps the pressure in the water tank 2 constant all the time; water for hydrogen production reaction is filled in the water tank 2 in advance, and a hydrogen production material for reacting with the water is filled in the reaction device 4 in advance, wherein the hydrogen production material is a solid hydrolysis hydrogen production material, such as metal powder of potassium, calcium, sodium, magnesium, aluminum and compounds thereof; the hydrogen storage device is connected with the reaction device 4 and is used for collecting hydrogen.
The water tank 2, the reaction device 4 and the hydrogen storage device are sequentially connected through a pipeline, so that water or hydrogen can be sequentially transmitted to a next device along the hydrogen production reaction sequence, and the hydrogen production reaction is sequentially performed from left to right. Wherein the bottom of the water tank 2 is communicated with the bottom of the reaction device 4 through a first pipeline 3, and the reaction device 4 is communicated with the hydrogen storage device through a second pipeline 5.
The bottom of water tank 2 and reaction unit 4's bottom are passed through first pipeline 3 intercommunication for water in the water tank 2 can directly flow to reaction unit 4 through the first pipeline 3 of bottom, and react with the hydrogen manufacturing material of reaction unit 4, and in the reaction process, water gets into reaction unit 4 through first pipeline 3 and carries out hydrogen manufacturing reaction.
The first pipeline 3 is provided with a first control valve 31, the first control valve 31 is used for controlling the flow of water in the water tank 2 flowing to the reaction device 4, and the hydrogen production reaction rate is further controlled by controlling the flow flowing to the reaction device 4.
Because the reaction of water and hydrogen production material is a violent exothermic reaction, water is slowly conveyed to the reaction device 4 through the first control valve 31 in the initial state, so that the hydrogen production material fully reacts, and the hydrogen production reaction process becomes more controllable due to pressure balance.
The reaction device 4 is communicated with the hydrogen storage device through a second pipeline 5, so that hydrogen generated in the reaction device 4 can enter the hydrogen storage device through the second pipeline 5 for storage.
The second pipeline 5 is provided with a second control valve 51, the second control valve 51 controls and adjusts the pressure inside the reaction device 4 by controlling whether the hydrogen is output or not or the output flow, and the pressure inside the reaction device 4 further determines the liquid level of the water tank 2 and the reaction state of the reaction materials.
The hydrogen production system of the present embodiment can be controlled by pressure according to the following principle: the pressure of the water tank 2 is always kept constant under the action of the pressurizing device, and the pressure value of the water tank 2 is P1The initial pressure in the reaction apparatus 4 is normal pressure P2. In the initial state of the reaction, P1＞P2The first control valve 31 and the second control valve 51 are both closed, and the first control valve 31 is opened first, because of P1＞P2And the water tank 2 is communicated with the bottom of the reaction device 4, so that the water in the water tank 2 flows to the reaction device 4 through the first pipeline 3 under the pressure effect, and the pressure of the first control valve 31 in the reaction device 4 reaches P2The water is controlled to slowly flow to the reaction device 4, and contacts with the lowest material of the reaction device 4 to react to generate hydrogen. Since hydrogen gas is continuously generated in the reaction device 4, the second control valve 51 is in a closed state, and the generated hydrogen gas is compressed, the pressure in the reaction device 4 is increased, i.e., P2And gradually increases. When P is present2＝P1At this time, the second control valve 51 is opened to release hydrogen gas into the hydrogen storage device, and at this time, the first control valve 31 is also opened completely, and the liquid level is kept stable by the pressure in the reaction device 4. Therefore, the reaction process can control whether the reaction is carried out or not and the reaction speed by controlling the pressure.
In this embodiment, the first control valve 31 is a flow regulating valve, which may be a self-operated balance valve, a flow control valve, a flow controller, a dynamic balance valve, or a flow balance valve, and can maintain the pressure difference between the inlet and the outlet of the flow regulating valve at a constant value when the load pressure changes. The flow regulating valve can keep the flow passing through the throttle valve constant regardless of the change of the load pressure, thereby stabilizing the moving speed of the actuator. In other embodiments of the present invention, the first control valve 31 is a throttle valve, a speed regulating valve, a flow dividing valve, or the like. A throttle valve is a valve that controls the flow of fluid by changing the throttle section or throttle length. The speed regulating valve is a combined valve formed by connecting a fixed-differential pressure reducing valve and a throttle valve in series, so that the differential pressure between the front and the back of the throttle valve is a fixed value, the influence of load change on flow is eliminated, and the flow of the speed regulating valve is constant. The function of the flow dividing valve is to equally divide or proportionally supply flow to the two actuators so as to realize that the speeds of the two actuators are kept in a synchronous or proportional relationship.
In this embodiment, the second control valve 51 is a stop valve, and has small friction between sealing surfaces in the opening and closing process, durability, small opening height, easy manufacture, and convenient maintenance, and is suitable for both medium and low pressure and high pressure. The stop valve depends on the pressure of the valve rod to make the sealing surface of the valve clack and the sealing surface of the valve seat tightly attached to prevent the medium from flowing. Can be divided into a straight-through stop valve, a straight-through stop valve and an angle stop valve according to the channel direction; according to the position of the screw thread on the folding valve rod, the valve rod can be divided into an upper screw thread valve rod stop valve and a lower screw thread valve rod stop valve. In other embodiments of the present invention, the second control valve 51 is a solenoid valve or a ball valve. Solenoid valves are industrial devices controlled by electromagnetism, are the basic elements of automation for controlling fluids, and can be used for regulating the flow of media. The ball valve is a valve with a ball body driven by a valve rod and rotating around the axis of the ball valve, and can be used for regulating and controlling fluid.
In the present embodiment, the pressurizing device is an air pump 1, and the air pump 1 compresses air by electric power to generate air pressure, that is, the air pump 1 pressurizes the inside of the water tank 2. The air pump 1 continuously inputs compressed air into the water tank 2, and the input compressed air is generally air, and other gases which are insoluble in water or slightly soluble in water, such as rare gas, can also be adopted.
The water tank 2 is filled with water for reaction in advance, and the hydrogen production reaction has no special requirements on the purity and the impurities of the water and contains H20 molecule such as tap water, pure water or seawater can be used for hydrogen production reaction. In the present embodiment, a pressure gauge 21 is provided in the water tank 2. The air pump 1 can be used in the hydrogen production reaction processThe pressure in the water tank 2 is kept stable, i.e. the reading of the pressure gauge 21 is always kept constant, and the value is P1。
Further, the air pump 1 is an electric air pump 1, the control end of the air pump 1 is connected with a pressure gauge 21 in the water tank 2, and the pressurizing process and the pressure stabilizing process are automatically completed according to the numerical value of the pressure in the water tank 2, so that the pressure P in the water tank 21Always at a constant value.
The water tank 2 includes a water inlet and a level meter, water is injected from the water inlet of the water tank 2 and stored, the level meter detects the level of water and prompts an alarm at a set value, water is added to the set value, and the set value is determined according to the chemical reaction amount of the water and the hydrogen storage material and can be properly excessive. The tank 2 further comprises a drain opening located at the bottom of the tank 2.
The reaction device 4 is connected with the water tank 2 through a first pipeline 3, and a first control valve 31 is arranged on the first pipeline 3. As described above, the first control valve 31 is a flow control valve, and in the initial state, the pressure in the water tank 2 is higher than the pressure in the reaction device 4, i.e., P1＞P2When the first control valve 31 is opened, water is injected into the reaction device 4 under the action of pressure, and the flow control valve is controlled to slowly discharge water under the regulation action of the flow control valve, so that the water is prevented from being discharged due to P1Initially much greater than P2And the entire reaction apparatus 4 is quickly filled. After water is in rapid contact reaction with the hydrogen production material below the reaction device 4, hydrogen is continuously generated, and the pressure of the reaction device 4 is increased.
When the pressure of the reaction apparatus 4 reaches the pressure in the water tank 2, i.e. P2＝P1When the pressure on the two sides reaches the equilibrium state, the water in the water tank 2 does not have power to continuously flow into the reaction device 4 on the right side, the stop valve is controlled to be opened at the moment, the hydrogen is released, the pressure of the reaction device 4 is released, and the pressure of the reaction device 4 is stabilized at P due to the continuous reaction2Over P2Is released to the hydrogen storage means through the shut-off valve, when the reaction of the underlying material is over, the hydrogen gas produced begins to decrease, the pressure in the reaction means 4 decreases, and when the pressure value is lower than P2When the stop valve is closed, the pressure of the water tank 2 and the reaction vesselThe balance is broken, the water tank 2 conveys water to the reaction device 4 through pressure difference, the liquid level in the reaction device 4 rises, the liquid contacts with unreacted materials to start a reaction to generate hydrogen, a pressure balance state is reached again, and the circulation is carried out, so that a state of pressure balance and continuous hydrogen production is reached. I.e. when the pressure in the reaction apparatus 4 is equal to the preset pressure value P1When the pressure in the reaction device 4 is lower than the preset pressure value P, the stop valve is controlled to be opened and output hydrogen to keep the pressures at two sides balanced1When the stop valve is closed, the liquid level rises to react with unreacted materials to generate hydrogen.
In a preferred embodiment, a pressure sensor 42 is installed in the reaction device 4, the pressure sensor 42 detects the pressure and feeds the pressure value back to the stop valve, and when the pressure sensor 42 detects that the pressure in the reaction device 4 is equal to the preset pressure value P1The shut-off valve is controlled to open.
The stop valve is controlled to be opened in two modes, one mode is that the pressure sensor 42 and the stop valve are electrically connected through the controller, and whether the stop valve is opened or closed is selected through a signal fed back by the pressure sensor 42, so that automatic control is realized; secondly, the pressure sensor 42 transmits pressure readings to the user, who manually opens the shut-off valve.
Further, the flow rate of water from the water tank 2 into the reaction apparatus 4 may be dependent on the pressure P in the reaction apparatus 42And (6) adjusting. The pressure sensor 42 feeds back a pressure signal to the flow regulating valve, thereby regulating the speed and flow rate of the inlet water. When the pressure of the reaction device 4 is balanced with the water tank 2, the flow rate of the inlet water is zero.
Further, a third control valve 52 is provided on the second pipeline 5, and the third control valve 52 is a check valve. The check valve is also called a check valve or a check valve, and can prevent the hydrogen from flowing back. The check valve can be a straight-through type or a right-angle type check valve.
A drain valve 44 is provided at the bottom of the reaction apparatus 4. After the hydrogen production material is completely submerged by the water level in the reaction device 4, the flow regulating valve is closed, and after complete reaction, the drain valve 44 is opened to drain water. The function of the drain valve 44 also includes opening the drain valve 44 to drain water and stop the reaction to ensure the safety when the pressure in the reaction device 4 increases suddenly and exceeds a set safety value (2 MPa).
The solid hydrolysis hydrogen production material placed in the reaction device 4 has multiple layers, and can be in the form of a material rod 41 or a material tray, such as an aluminum-based composite powder material rod 41, and the material rod 41 or the material tray is distributed along the vertical direction from the bottom of the reaction device 4. The material rod 41 is vertically inserted into the bottom of the reaction device 4 and is vertical to the bottom of the reaction device 4, and the multilayer material tray structure is arranged layer by layer along the bottom of the reaction device 4.
The reason why the hydrogen production material is provided with the layers in the vertical direction is that when water is just discharged in the initial reaction stage, water is slowly discharged under the action of the flow regulating valve, and only the material rod 41 or the material disc at the lower layer can contact with the water to react until the pressure in the reaction device 4 is equal to P1When the stop valve is opened to start the hydrogen gas output, the pressure in the reaction device 4 tends to be stable, the generated hydrogen gas is reduced along with the consumption of the material rod 41, and the pressure P in the reaction device 4 is reduced2Gradually reducing, the water enters the reaction device 4 under the action of pressure, the liquid level rises, the unreacted materials start to contact and react with the water, and the circulation is carried out, so that the material rod 41 or the material tray fully reacts step by step. In the whole reaction process, the reaction is carried out from the bottom of the material rod 41 or the material tray layer by layer to the top of the material rod 41, so that the reaction speed is controlled, the hydrogen can be continuously produced, and the hydrogen production reaction is continuously and stably carried out.
Further, the reaction device 4 is divided into an upper part and a lower part, and the upper part and the lower part can be disassembled for material changing. The upper and lower structures of the reaction apparatus 4 are connected by flanges or clips, and a plurality of material rods 41 are built therein. After the reaction of the charge bar 41 is completed, the reaction apparatus 4 may be opened to replace the charge bar 41. The material rod 41 can be replaced by a multi-layer tray. The material rod 41 or the material tray is made of a solid hydrolysis hydrogen production material, and the reaction process of the solid hydrolysis hydrogen production material with water is violent and can emit a large amount of heat. The reaction device 4 further comprises a temperature sensor 43 for detecting the temperature, avoiding that the reaction temperature exceeds the maximum temperature that the reaction device 4 can withstand.
The hydrogen storage device comprises a radiator 6 and a buffer tank 7, wherein the radiator 6 is used for radiating heat, so that the heat of the hydrogen is in a use range, and the heat can be sufficiently radiated in the air. The buffer tank is used for storing hydrogen, storing the hydrogen and stabilizing the pressure, so that the hydrogen can be stably and continuously output to the rear-end hydrogen equipment. The reaction device 4 is directly connected with a radiator 6 through a second pipeline 5, and hydrogen after heat exchange by the radiator 6 enters a buffer tank 7 for storage. The buffer tank 7 is connected with the hydrogen output passage 8, the hydrogen output passage 8 is also provided with a second one-way valve 82 and a second stop valve 81 for preventing hydrogen backflow and controlling output, and the installation positions of the second one-way valve 82 and the second stop valve 81 are out of order.
Further, the air pump 1 makes the pressure in the water tank 2 constant within a certain range. Along with the water level of the water tank 2 is reduced, the original pressure is also reduced, the air pump 1 is pressurized to a set pressure value again, the pressure is always kept at a set value, and the pressure is constant at 0.1MPa-1 MPa.
One complete hydrogen production process in this example is:
as shown in fig. 2, which is a state diagram before the reaction between the water tank 2 and the reaction vessel, before the reaction, water is injected into the water tank 2 from a water injection port to a preset water level line, a bar 41 is loaded into the reaction apparatus 4, the air pump 1, the water tank 2, the reaction apparatus 4, the radiator 6 and the buffer tank 7 are connected through pipes, and all valves are kept in a closed state.
As shown in fig. 3, which is a state diagram of the water tank 2 and the reaction vessel in the reaction, the air pump 1 is used to pressurize the water tank 2, so that the pressure in the water tank 2 is stabilized at the preset value P1Opening the flow control valve, the water slowly flows into the reaction device 4 and reacts with the bottom layer of the material rod 41 to generate hydrogen gas quickly when the pressure P in the reaction device 4 is higher2Equal to the pressure P in the tank 21When the hydrogen is discharged, the stop valve is opened to start the hydrogen discharge. Along with the consumption of the material rod 41, the pressure of the reaction device 4 is gradually reduced, water continuously enters the reaction device 4 under the action of the pressure, the material rod 41 or the material tray on the middle layer or the upper layer further reacts, the pressure in the reaction device 4 is increased, the pressure of the reaction device 4 is balanced with the water tank 2 again, and the circulation is carried out, so that the material rod 41 or the material tray reacts step by step.
As shown in FIG. 4, which is a diagram showing a state where the reaction between the water tank 2 and the reaction vessel is completed, the water line in the reaction apparatus 4 submerges the top of the material rods 41, all the material rods 41 are completely reacted, and the drain valve 44 is opened to drain water.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (10)
1. A continuous hydrogen production system based on pressure control, comprising: the device comprises a water tank, a reaction device, a pressurizing device and a hydrogen storage device;
the reaction device is used for storing hydrogen production materials which react with water;
the pressurizing device is connected with the water tank and is used for keeping the pressure in the water tank constant;
the hydrogen storage device is connected with the reaction device and is used for buffering and collecting hydrogen;
the bottom of the water tank is communicated with the bottom of the reaction device through a first pipeline, the reaction device is communicated with the hydrogen storage device through a second pipeline, a first control valve is arranged on the first pipeline, and a second control valve is arranged on the second pipeline.
2. The system for continuous hydrogen production based on pressure control of claim 1, wherein the first control valve is a flow regulating valve.
3. The system for continuous hydrogen production based on pressure control of claim 1, wherein the second control valve is a shut-off valve.
4. The system for continuous hydrogen production based on pressure control according to claim 3, wherein the stop valve is controlled to open and output hydrogen when the pressure in the reaction device reaches a preset pressure value.
5. The system for continuous hydrogen production based on pressure control according to claim 4, wherein the preset pressure value is equal to the constant pressure of the water tank.
6. The system for continuous hydrogen production based on pressure control according to claim 1, wherein a third control valve is further disposed on the second pipeline, and the third control valve is a one-way valve.
7. The system for continuous hydrogen production based on pressure control according to claim 1, wherein the hydrogen storage device comprises a heat exchanger and a buffer tank, the heat exchanger is used for hydrogen heat dissipation, and the buffer tank is used for storing hydrogen.
8. The system for continuous hydrogen production based on pressure control according to claim 1, wherein the pressurizing device is an air pump, and the air pump enables the pressure in the water tank to be constant within 0.1MPa-1 MPa.
9. The system for continuous hydrogen production based on pressure control according to claim 1, characterized in that a drain valve is arranged at the bottom of the reaction device.
10. The continuous hydrogen production system based on pressure control according to claim 1, characterized in that the hydrogen production material is a material rod or a material disk, and the material rod or the material disk is distributed from the bottom of the reaction device along the vertical direction.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112624043A (en) * | 2020-12-29 | 2021-04-09 | 中国科学院上海应用物理研究所 | Self-sustaining hydrogen production device based on drainage method |
| CN112652789A (en) * | 2020-12-29 | 2021-04-13 | 中国科学院上海应用物理研究所 | Device for controlling stable hydrogen supply of fuel cell and use method thereof |
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2020
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112624043A (en) * | 2020-12-29 | 2021-04-09 | 中国科学院上海应用物理研究所 | Self-sustaining hydrogen production device based on drainage method |
| CN112652789A (en) * | 2020-12-29 | 2021-04-13 | 中国科学院上海应用物理研究所 | Device for controlling stable hydrogen supply of fuel cell and use method thereof |
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