KR100608087B1 - Hydrogen gas producing device - Google Patents

Abstract

The present invention relates to a hydrogen generator. It is a closed container; A bellows tank installed inside the sealed container and partitioned into first and second spaces by a partition plate; A reaction chamber having a hydrogen generation catalyst; An inflow pipe leading the chemical hydride supplied from the outside into the first space; A supply pipe connecting the first space and the reaction chamber; A recovery tube connecting the reaction chamber and the second space; A gas-liquid separator installed in the recovery pipe; A drain pipe leading the reaction product introduced into the second space to the outside of the sealed container; It has a configuration including a hydrogen supply pipe for supplying the hydrogen gas in the closed container to the outside.

The hydrogen generating apparatus according to the present invention made as described above has a configuration in which hydrogen gas is generated by a chemical reaction inside a container providing a closed space and supplies the generated hydrogen gas to a demand destination through a supply pipe. The device is light and simple because it does not require pressure resistance or thermal insulation of the container to be stored.In particular, the bellows is applied as a chemical hydride receiving tank and a reaction product receiving tank, but the size of the bellows tank is small because the volume of both sides is relatively increased and decreased. It can be manufactured to be small as a whole, so that it is portable and thus can be mounted on a hydrogen fuel car or used in a private laboratory or laboratory.

Description

Hydrogen generating device

1 is a configuration diagram illustrating the overall configuration of a hydrogen generator according to a first embodiment of the present invention.

2 and 3 are views shown for explaining the operation of the hydrogen generator shown in FIG.

4 is a diagram illustrating the overall configuration of a hydrogen generator according to a second embodiment of the present invention.

5 and 6 are views for explaining the operation of the hydrogen generator shown in FIG.

<Explanation of symbols for the main parts of the drawings>

11, 51: hydrogen generator 13: airtight container

15: hydrogen supply pipe 17, 53: bellows tank

17c: bulkhead plate 17d: first fixed plate

17e: 2nd fixed plate 17f: membrane

19: Inlet pipe 19a: First valve

21: supply pipe 21a: second valve

23: 3rd valve 25: check valve

27: reaction chamber 27a: hydrogen generating catalyst

29: collection pipe 31: drainage pipe

33: pressure sensor 55: gas-liquid separator

57: controller

A: first space B: second space C: third space

The present invention relates to a hydrogen generator.

As a method for supplying hydrogen to a fuel cell or other hydrogen that requires hydrogen as a fuel, a method of storing hydrogen in a gaseous state in a high pressure tank and then discharging the hydrogen to a predetermined pressure through a pressure reducing valve, There are known a method of storing hydrogen in a liquid state and vaporizing and supplying the stored liquid hydrogen as necessary, a method of adsorbing hydrogen to a hydrogen storage alloy and then supplying the hydrogen.

However, the apparatus for the first method requires a hydrogen storage pressure vessel capable of withstanding high pressures of 120 atm and 150 atm and also requires an auxiliary device for pressure regulation. There are problems such as the need to recharge hydrogen, the operation cost is high and the device is large and complex, the movement is inconvenient.

In addition, the device for the second method requires the cooling of gaseous hydrogen to below 250 degrees Celsius, so that special equipment and liquefied hydrogen are needed to maintain the liquefied state of liquid liquid hydrogen. There is a need for a separate vaporization device for vaporization, which makes the device complex, mobile, and always at risk of explosion.

The third device has a problem in that when the adsorption and discharge of hydrogen to the hydrogen storage alloy is repeated, local stress is applied to the hydrogen storage alloy, causing deformation or cracking, thereby causing abnormal hydrogen leakage.

Meanwhile, in addition to the above three devices, a device for obtaining hydrogen gas by contacting a chemical hydride with a hydrogen generating catalyst has also been proposed. This device is an application based on chemical theory, and has a structure in which the chemical hydride is in contact with the hydrogen generating catalyst by placing the hydrogen generating catalyst in the flow field of the chemical hydride.

However, since the fuel storage tank for storing the chemical hydride and the storage tank for storing the reaction results are separately provided, there is a limit of effective space use, and thus, a more compact hydrogen generating device does not meet the expectation.

The present invention has been created to solve the above problems, and has a configuration to generate hydrogen gas by chemical reaction inside the container providing a closed space and to supply the generated hydrogen gas to the customer through the supply pipe, the hydrogen is stored The device is light and simple because it does not require pressure resistance or thermal insulation of the container.In particular, the bellows is applied to the chemical hydride storage tank and the reaction product accommodation tank. As a whole, it is possible to manufacture small and portable, and thus can be mounted on a hydrogen fuel car, as well as to provide a hydrogen generating device that can be used in the laboratory or laboratory.

In order to achieve the above object, the present invention provides a sealed container for providing an inner space sealed from the outside; A corrugated pipe that is installed inside the hermetically sealed container, wherein the first and second fixing plates are hermetically fixed to both ends of the corrugated pipe in the longitudinal direction, and the inner space is first supported by the partition plate supported relatively close to the first fixing plate. A bellows tank divided into two spaces; A reaction chamber positioned at the side of the bellows tank and having a hydrogen generating catalyst therein; An inlet pipe which guides the chemical hydride to the first space from the outside of the sealed container so that the chemical hydride pushes the partition plate toward the second fixed plate and fills the first space; A supply pipe connecting the first space and the reaction chamber to guide the chemical hydride discharged from the first space into the reaction chamber as the partition plate and the fixed plate are relatively close by the attraction force; A recovery tube connecting the reaction chamber and the second space to guide the hydrogen gas and the reaction product generated by the reaction between the hydrogen generation catalyst and the chemical hydride in the reaction chamber to the second space side; A gas-liquid separator installed in the recovery pipe and passing the hydrogen gas flowing along the recovery pipe and the reaction product therein, separating the hydrogen gas from the reaction product and discharging the hydrogen gas into the inner space of the closed container; A drain pipe which guides and discharges the reaction product introduced into the second space while the new chemical hydride is supplied to the first space to the outside of the closed container; It characterized in that it comprises a hydrogen supply pipe connecting the inside and outside of the sealed container and the hydrogen gas filling the inner space of the sealed container to the outside of the sealed container.

In addition, the present invention in order to achieve the above object, the sealed container for providing an inner space sealed from the outside; A corrugated pipe that is installed inside the hermetically sealed container, wherein the first and second fixing plates are hermetically fixed to both ends of the corrugated pipe in the longitudinal direction, and the inner space is first supported by the partition plate supported relatively close to the first fixing plate. A bellows tank is divided into two spaces, and a main surface forming a second space between the partition plate and the second fixing plate comprises a membrane for selectively passing hydrogen gas through the membrane. A reaction chamber positioned at the side of the bellows tank and having a hydrogen generating catalyst therein; An inlet pipe which guides the chemical hydride to the first space from the outside of the sealed container so that the chemical hydride pushes the partition plate toward the second fixed plate and fills the first space; A supply pipe connecting the first space and the reaction chamber to guide the chemical hydride discharged from the first space into the reaction chamber as the partition plate and the fixed plate are relatively close by the attraction force; A recovery pipe connecting the reaction chamber and the second space to guide the hydrogen gas and the reaction product generated by the reaction between the hydrogen generation catalyst and the chemical hydride in the reaction chamber to the second space; A drain pipe for discharging the reaction product introduced into the second space while the new chemical hydride is supplied to the first space to the outside of the sealed container; It is characterized in that it comprises a hydrogen supply pipe connecting the inside and the outside in the sealed container and the hydrogen gas filling the inner space of the sealed container to the outside of the sealed container.

In addition, any one of the partition plate or the first fixing plate is characterized in that the magnet and the other is a metal plate attached to the magnet.

In addition, the partition plate and the first fixing plate is characterized in that the magnetic plate to pull each other with different poles.

In addition, a controller for generating a control signal is further provided in the inner space of the closed container, and the inlet pipe is provided with a first valve for blocking the chemical hydride that is controlled by the controller and flows into the first space. The supply pipe is characterized in that the second valve is controlled by the controller to block the chemical hydride moving from the first space to the reaction chamber is installed.

In addition, the inside of the sealed container is further provided with a sensor for sensing the pressure of the hydrogen gas filling the inside of the sealed container and sends the detected content to the controller, a signal from the sensor between the reaction chamber of the supply pipe and the second valve It is controlled by a controller that receives the characterized in that the shut-off valve is further installed to shut off the chemical hydride flowing into the reaction chamber to temporarily stop the hydrogen generation.

In addition, the chemical hydride is characterized in that any one selected from LiBH4, LiH, NaBH4, LiAlH4, MgH2, NaAlH4, CaH2, KH, KBH4, Ca (BH4) 2, Mg (BH4) 2, KAlH4.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a configuration diagram illustrating the overall configuration of a hydrogen generator according to a first embodiment of the present invention.

Basically, the present invention is based on the basic chemical theory that chemical hydride can be contacted with a hydrogen generating catalyst to generate hydrogen gas. The hydrogen generating catalyst is installed inside a sealed container and the chemical hydride flows while It is configured to pass through in contact with the hydrogen generating catalyst.

1 is a configuration diagram illustrating the overall configuration of a hydrogen generator according to a first embodiment of the present invention.

Referring to the drawings, the hydrogen generating device 51 according to the present embodiment is an airtight container 13 which provides an inner space sealed to the outside, and the inner space is installed inside the sealed container 13. Bellows tank (53) having first and second spaces (A, B) to increase and decrease in the first and second inlet pipes (19) for inducing external chemical hydrides in the first space (A) of the sealed container (13); And a reaction chamber 27 located at the side of the bellows tank 53 and having a hydrogen generating catalyst 27a therein and connected to the first space A through a supply pipe 21, and the reaction chamber 27. ) And a recovery pipe 29 connecting the second space (B), and the hydrogen gas is separated from the reaction product in the generated hydrogen gas and the reaction product passing through the reaction chamber 27 and installed in the recovery tube 29 Reaction result collected in the gas-liquid separator 55 discharged to the inner space of the sealed container and the second space (B) A is configured to include a sealed container 13, drain tube 31 is sent within the outside.

LiBH4, LiH, NaBH4, LiAlH4, MgH2, NaAlH4, CaH2, KH, KBH4, Ca (BH4) 2, Mg (BH4) 2, KAlH4 may be selectively used as the chemical hydride.

First, the bellows tank 53 is a corrugated pipe made of rubber, which is stretchable in the longitudinal direction, and the first and second fixing plates 17d and 17e are fixed to both ends thereof. The first and second fixing plates 17d and 17e are disc members, which seal the bellows tank 53 to the outside and are fixed inside the sealed container 13.

In addition, a partition plate 17c is positioned at an inner central portion of the bellows tank 53. The partition plate 17c is located at the center of the bellows tank 53 and divides the inner space of the bellows tank 53 into a first space A and a second space B. It goes without saying that the first space A and the second space B are completely blocked by the partition plate 17c.

On the other hand, the partition plate 17c and the first fixed plate 17d are mutually pulled by the magnetic force. To this end, the partition plate 17c is made of magnets, and the first fixing plate 17d is made of a metal plate attached to the magnet, or the partition plate 17c and the first fixing plate 17d are magnets having opposite poles. Can be produced with Alternatively, the first fixing plate 17d may be made of a magnet, and the partition plate 17c may be made of a metal plate attached to the magnet. At this time, the partition plate 17c and the second fixing plate 17e do not have magnetic force applied to each other. To this end, the second fixing plate 17e is made of nonmagnetic metal or synthetic resin.

In any case, the partition plate 17c has a tendency to approach the fixed first plate 17d side. This tendency to approach (hereinafter, proximity force) serves as a power source for flowing the chemical hydride supplied to the first space A as described below.

In addition, the inlet pipe 19 is provided with a first valve 19a, and the supply pipe 21 is provided with a second valve 21a, a third valve 23, and a check valve 25. The third valve 23 is located between the second valve 21a and the reaction chamber 27, and the check valve 25 is located between the third valve 23 and the reaction chamber 27.

The sealed container 13 is provided with a hydrogen supply pipe (15). The hydrogen supply pipe 15 is a connecting pipe connecting the third space C provided by the sealed container 13 to the outside and is opened when the hydrogen gas rises above the predetermined pressure in the third space C. Supply hydrogen gas to the required place.

On the other hand, the pressure sensor 33 and the controller 57 is further provided in the third space (C). The pressure sensor 33 is a sensor for checking the pressure in the third space C of the hydrogen gas separated by the gas-liquid separator 55 and transmits the sensed content to the controller 57.

The controller 57 controls the first, second, and third valves 19a, 21a, and 23 to determine on / off of each valve. The operation mechanism of the first, second and third valves 19a, 21a, 23 by the controller 57 will be described later.

Reference numeral 25 is a check valve. The check valve 25 is a general check valve to prevent the back of the chemical hydride.

2 and 3 are views shown for explaining the operation of the hydrogen generator shown in FIG.

Basically, the first space A or the second space B in the hydrogen generator 51 according to the present invention passes a predetermined time after sucking the chemical hydride or the reaction product therein as if it is a piston in a cylinder. After the discharge operation is repeated.

Referring to the drawing, when the chemical hydride is pressurized in the direction of arrow i with the first valve 19a open, the chemical hydride gradually fills the first space A and the partition plate ( 17c) is pushed and moved in the direction of arrow a. The partition plate 17c moves to the second fixing plate 17e side, but the attraction force due to the magnetic force continues to act between the partition plate 17c and the first fixing plate 17d.

As described above, the first and second fixing plates 17d and 17e are fixed inside the sealed container 13, so that the unfixed partition plate 17c moves in the direction of the arrow a. The volume of is increased and the volume of the second space B is decreased. At this time, of course, the second valve 21a is blocked by the controller 57 in advance.

In any case, after the hydride is completely filled in the first space A, the first valve 19a is shut off through the controller 57, and the second valve 21a and the third valve 23 are opened. 17c moves in the direction of arrow b toward the first fixing plate 17d and discharges the chemical hydride filled therein in the direction of arrow c. When the first valve 19a is blocked, the injection of the chemical hydride from the outside stops and the partition plate 17c moves to the first fixing plate 17d side.

The partition plate 17c may be moved by a first restoring force of the bellows tank corrugated pipe that has been extended and a magnetic force between the first fixing plate 17d and the partition plate 17c. As the strength of the magnetic force is increased, the discharge force provided by the partition plate 17c to the chemical hydride is, of course, stronger.

Through the chemical hydride second valve 21a, the third valve 23 and the check valve 25 which are discharged through the supply pipe 21 in order, the reaction chamber 27 is finally reached.

The chemical hydride reaching the reaction chamber 27 passes through the reaction chamber 27 by the continuous proximity of the partition plate 17c. As described above, since the hydrogen generating catalyst 27a is formed inside the reaction chamber 27 to chemically react with the chemical hydride to generate hydrogen gas, the chemical hydride passes through the reaction chamber 27. While entering the hydrogen gas and the reaction product is entered into the recovery pipe 29.

Of course, the reaction product is also in a liquid state.

The hydrogen gas and the reaction product entering the recovery pipe 29 pass through the gas-liquid separator 55 and the hydrogen gas is separated from the reaction product. The hydrogen gas separated by the gas-liquid separator 55 is discharged into the third space C provided by the sealed container 13 to gradually increase the pressure of the hydrogen gas in the third space C. When the pressure of the hydrogen gas rises and becomes larger than the opening pressure of the hydrogen supply pipe 15 to be described later, the hydrogen gas is supplied to the required place, and the gas pressure of the third space C is lowered again.

As described above, the reaction product in the state where the hydrogen gas is separated finally moves to the second space (B) to slowly fill the second space (B). Since the partition plate 17c continues to move toward the first fixing plate 17d, the reaction product moving in the direction of the arrow d fills the second space B without any difficulty.

On the other hand, the sealed container 13 is provided with a hydrogen supply pipe (15). The hydrogen supply pipe 15 is a pipe connecting the inside and the outside of the sealed container 13 to supply the hydrogen gas that has been waiting inside the sealed container 13 to an external need. The hydrogen supply pipe 15 is a pipe that is directed to an external need, and is a pipe that is opened when an entry force of a predetermined pressure is applied without applying a separate on / off valve. When an entry force of less than a predetermined pressure is applied, the state is kept in a blocked state and waits until the pressure in the third space C rises.

In addition, the pressure sensor 33 is further provided inside the sealed container 13. The pressure sensor 33 detects the pressure of the hydrogen gas inside the sealed container 13 and transmits the contents to the controller 57.

The controller 57 receives the pressure from the pressure sensor 33, and shuts off the third valve 23 to temporarily stop hydrogen generation when the pressure inside the sealed container 13 exceeds the allowable value. When the pressure is lowered, the third valve 23 is opened again to continue hydrogen generation.

The controller 57 also controls the operation of the first and second valves 19a and 21a as described above. That is, the first valve 19a and the second valve 21a are selectively blocked or opened.

While the hydrogen generation continues, it can be seen that the remaining amount of the chemical hydride supplied to the first space A gradually decreases, so that the first space A is contracted as shown in FIG. 3.

In this state, new chemical hydride is replenished to the first space A in order to continue supplying hydrogen gas. That is, a new chemical hydride is injected from the outside of the sealed container 13 while the first valve 19a is opened and the second valve 21a is again shut off.

In this way, when a new chemical hydride is injected, the partition plate 17c moves in the direction of arrow a of FIG. 2 due to the injection force, and the reaction products gathered in the second space B move along the direction of the arrow e. It exits and moves to the outside of the sealed container 13.

4 is a diagram illustrating the overall configuration of the hydrogen generator 11 according to the second embodiment of the present invention.

The same reference numerals as the above reference numerals denote the same members having the same function, and repeated description thereof will be omitted.

As shown, the corrugated pipe wall that forms the second space B of the bellows tank 17 in this embodiment is made of a membrane 17f, and the corrugated pipe wall that forms the first space A is the first described above. It is made of rubber as in the example.

That is, the rubber is located on the first fixing plate 17d side and the membrane is located on the second fixing plate 17e side around the partition plate 17c. The membrane 17f and the rubber are respectively sealed to the partition plate 17c to form their respective spaces. The membrane 17f is known and has a property of passing gas and not allowing liquid to pass.

5 and 6 are views for explaining the operation of the hydrogen generator shown in FIG.

Similar to the first embodiment described above, the chemical hydride supplied from the outside to the inside of the first space A through the inflow pipe 19 is moved in the direction of arrow c by the proximity force of arrow b of the partition plate 17c. It exits from the first space A and passes through the reaction chamber 27.

The chemical hydride in contact with the hydrogen generation catalyst 27a in the reaction chamber 27 is divided into hydrogen gas and the reaction product, and enters the second space B once through the recovery pipe 29. Hydrogen gas and the reaction product flowing into the second space B along the arrow d direction fill the expanded second space B as the partition plate 17c moves to the first fixed plate 17d.

Meanwhile, the hydrogen gas filling the second space B and the hydrogen gas in the reaction product move from the second space B to the third space C through the membrane 17f. The hydrogen gas moved to the third space C is raised to a predetermined pressure and then supplied to the outside through the hydrogen supply pipe 15.

The reaction product left in the second space (B) enters the drainage tube (31) along the direction of arrow e when the new chemical hydride is injected into the first space (A) and exits to the outside.

As mentioned above, although this invention was demonstrated in detail through the specific Example, this invention is not limited to the said Example, A various deformation | transformation is possible for a person with ordinary knowledge within the scope of the technical idea of this invention.

The hydrogen generating device according to the present invention made as described above, the hydrogen generating device according to the present invention made as described above, the hydrogen gas is generated by a chemical reaction in the container providing a closed space and the generated hydrogen gas supply pipe Since it has a configuration to supply to the demand source through, the device is light and simple because the pressure resistance or heat insulation of the container for storing hydrogen is not required, and in particular, the bellows is applied as a chemical hydride receiving tank and a reaction product receiving tank, The relatively small bellows tank allows the device to be manufactured as a whole, which is portable and thus can be mounted on a hydrogen fuel car or used in a private laboratory or laboratory.

Claims (9)

delete delete An airtight container that provides a sealed inner space from the outside; To be installed inside the sealed container, A bellows tank which is divided into the first and second spaces by a partition plate which is longitudinally stretchable and corrugated in the longitudinal direction, the first and second fixing plates are hermetically fixed to both ends thereof, and the inner space is supported to be relatively close to the first fixing plate. ; A reaction chamber positioned at the side of the bellows tank and having a hydrogen generating catalyst therein; An inlet pipe which guides the chemical hydride to the first space from the outside of the sealed container so that the chemical hydride pushes the partition plate toward the second fixed plate and fills the first space; A supply pipe connecting the first space and the reaction chamber to guide the chemical hydride discharged from the first space into the reaction chamber as the partition plate and the fixed plate are relatively close by the attraction force; A recovery tube connecting the reaction chamber and the second space to guide the hydrogen gas and the reaction product generated by the reaction between the hydrogen generation catalyst and the chemical hydride in the reaction chamber to the second space side; A gas-liquid separator installed in the recovery pipe and passing the hydrogen gas flowing along the recovery pipe and the reaction product therein, separating the hydrogen gas from the reaction product and discharging the hydrogen gas into the inner space of the closed container; A drain pipe for guiding and discharging the reaction product introduced into the second space to the outside of the closed container while the new chemical hydride is supplied to the first space; It includes a hydrogen supply pipe connecting the inside and the outside of the sealed container and the hydrogen gas filling the inner space of the sealed container to the outside of the sealed container, Hydrogen generating device, characterized in that any one of the partition plate or the first fixed plate is a magnet and the other is a metal plate attached to the magnet. An airtight container that provides a sealed inner space from the outside; To be installed inside the sealed container, A corrugated tube that is stretchable in the longitudinal direction, and the first and second fixing plates are hermetically fixed to both ends thereof, and the inner space is partitioned into the first and second spaces by a partition plate supported to be relatively close to the first fixing plate. And a main surface constituting a second space between the second fixing plate and a bellows tank made of a membrane for selectively passing hydrogen gas therethrough; A reaction chamber positioned at the side of the bellows tank and having a hydrogen generating catalyst therein; An inlet pipe which guides the chemical hydride to the first space from the outside of the sealed container so that the chemical hydride pushes the partition plate toward the second fixed plate and fills the first space; A supply pipe connecting the first space and the reaction chamber to guide the chemical hydride discharged from the first space into the reaction chamber as the partition plate and the fixed plate are relatively close by the attraction force; A recovery pipe connecting the reaction chamber and the second space to guide the hydrogen gas and the reaction product generated by the reaction between the hydrogen generation catalyst and the chemical hydride in the reaction chamber to the second space; A drain pipe for guiding the reaction product introduced into the second space to the outside of the closed container while the new chemical hydride is supplied to the first space; And a hydrogen supply pipe connecting the inside and the outside of the sealed container and discharging the hydrogen gas filling the inner space of the sealed container to the outside of the sealed container. Hydrogen generating device, characterized in that any one of the partition plate or the first fixed plate is a magnet and the other is a metal plate attached to the magnet. An airtight container that provides a sealed inner space from the outside; To be installed inside the sealed container, A bellows tank which is divided into the first and second spaces by a partition plate which is longitudinally stretchable and corrugated in the longitudinal direction, the first and second fixing plates are hermetically fixed to both ends thereof, and the inner space is supported to be relatively close to the first fixing plate side; ; A reaction chamber positioned at the side of the bellows tank and having a hydrogen generating catalyst therein; An inlet pipe which guides the chemical hydride to the first space from the outside of the sealed container so that the chemical hydride pushes the partition plate toward the second fixed plate and fills the first space; A supply pipe connecting the first space and the reaction chamber to guide the chemical hydride discharged from the first space into the reaction chamber as the partition plate and the fixed plate are relatively close by the attraction force; A recovery tube connecting the reaction chamber and the second space to guide the hydrogen gas and the reaction product generated by the reaction between the hydrogen generation catalyst and the chemical hydride in the reaction chamber to the second space side; A gas-liquid separator installed in the recovery pipe and passing the hydrogen gas flowing along the recovery pipe and the reaction product therein, separating the hydrogen gas from the reaction product and discharging the hydrogen gas into the inner space of the closed container; A drain pipe for guiding and discharging the reaction product introduced into the second space to the outside of the closed container while the new chemical hydride is supplied to the first space; It includes a hydrogen supply pipe connecting the inside and the outside of the sealed container and the hydrogen gas filling the inner space of the sealed container to the outside of the sealed container, The partition plate and the first fixing plate is a hydrogen generating device, characterized in that the magnetic plate to pull each other with different poles. An airtight container that provides a sealed inner space from the outside; To be installed inside the sealed container, A corrugated tube that is stretchable in the longitudinal direction, and the first and second fixing plates are hermetically fixed to both ends thereof, and the inner space is partitioned into the first and second spaces by a partition plate supported to be relatively close to the first fixing plate. And a main surface constituting a second space between the second fixing plate and a bellows tank made of a membrane for selectively passing hydrogen gas therethrough; A reaction chamber positioned at the side of the bellows tank and having a hydrogen generating catalyst therein; An inlet pipe which guides the chemical hydride to the first space from the outside of the sealed container so that the chemical hydride pushes the partition plate toward the second fixed plate and fills the first space; A supply pipe connecting the first space and the reaction chamber to guide the chemical hydride discharged from the first space into the reaction chamber as the partition plate and the fixed plate are relatively close by the attraction force; A recovery pipe connecting the reaction chamber and the second space to guide the hydrogen gas and the reaction product generated by the reaction between the hydrogen generation catalyst and the chemical hydride in the reaction chamber to the second space; A drain pipe for guiding the reaction product introduced into the second space to the outside of the closed container while the new chemical hydride is supplied to the first space; And a hydrogen supply pipe connecting the inside and the outside of the sealed container and discharging the hydrogen gas filling the inner space of the sealed container to the outside of the sealed container. The partition plate and the first fixing plate is a hydrogen generating device, characterized in that the magnetic plate to pull each other with different poles. The method according to any one of claims 3 to 6, In the inner space of the closed container is further provided with a controller for generating a control signal, The inlet pipe is provided with a first valve controlled by the controller to block the chemical hydride flowing to the first space, And a second valve installed in the supply pipe to block the chemical hydride which is controlled by the controller and moves from the first space to the reaction chamber. The method of claim 7, wherein The inside of the sealed container is further provided with a sensor for sensing the pressure of the hydrogen gas filling the inside of the sealed container and sends the detected content to the controller, Between the reaction chamber and the second valve of the supply pipe is further controlled by a controller receiving a signal from the sensor and is further provided with a shutoff valve for temporarily stopping the generation of hydrogen by blocking the chemical hydride flowing into the reaction chamber Hydrogen Generator. The method according to any one of claims 3 to 6, The chemical hydride is LiBH4, LiH, NaBH4, LiAlH4, MgH2, NaAlH4, CaH2, KH, KBH4, Ca (BH4) 2, Mg (BH4) 2, hydrogen generator characterized in that any one selected from.

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