KR101907344B1 - Hydrogen storage apparatus using a metal hydride of pillar - Google Patents

Abstract

A hydrogen storage device is disclosed. The hydrogen storage device comprises: a cylinder-shaped storage container; A porous receiving member accommodated in an inner space of the storage container and made of a porous metal including an open pore; A plurality of pillar-shaped uranium, depleted uranium, and Zr-based alloys, wherein the columnar axial direction is parallel to the axial direction of the storage container and is surrounded by the porous storage member, Hydrogen storage metal; A hydrogen supply pipe fluidly connected to the storage vessel to supply hydrogen to the inner space of the storage vessel; A hydrogen outlet pipe fluidly connected to the storage vessel for discharging hydrogen in the storage vessel to a source; And a heat supply source positioned inside or outside the storage container to supply heat to the internal space of the storage container, wherein the pores are formed of a hydrogen storage metal material dispersed from the plurality of hydrogen storage metal And has a size capable of accommodating the particles and dispersing them in the porous receiving member. When such a hydrogen storage device is used, there is no risk of ignition of the hydrogen storage metal, and the metal hydride can be uniformly distributed in the inner space of the container, whereby the hydrogen can be stored and discharged quickly.

Description

TECHNICAL FIELD [0001] The present invention relates to a hydrogen storage device using a columnar hydrogen storage metal,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hydrogen storage device, and more particularly, to a hydrogen storage device with enhanced hydrogen storage and discharge efficiency and fabrication safety.

In order to replace the fossil fuels that are becoming depleted in the world as the industry develops rapidly, and to conserve the earth's environment and make efficient use of energy resources, among the energy-related technologies that have excellent characteristics as a future energy medium, Development is very urgent. As a result, interest in the development of hydrogen energy technology is increasing, and securing the use of hydrogen energy including hydrogen production, storage and transport will be an important factor in determining energy security and national competitiveness in the 21st century.

When hydrogen is used as an energy source, it can be produced with unlimited amount of water as a raw material. In addition to recycling to water after use, no pollutants are generated except for a very small amount of NOx generated during combustion. In addition, hydrogen can be easily transported as a gas or a liquid, and is easily stored in various forms such as high-pressure gas, liquid hydrogen, and metal hydride. In addition, it has an advantage of being easy to use as a fuel such as a fuel or a fuel cell by direct combustion. Therefore, hydrogen is considered to be most suitable for future energy systems because it can be used in almost all fields used in current energy systems such as general fuel cars, hydrogen planes, and fuel cells from industrial basic materials.

On the other hand, fusion energy can be produced by the fusion reaction of hydrogen isotopes tritium and deuterium.

Tritium, a raw material of nuclear fusion reaction, is a radioactive hydrogen isotope and requires a high level of safety in its handling. In addition, since tritium is a sensitive radioactive material subject to cross-border import and export control, it is important to store it safely for efficient use and to measure and supply accurate inventory.

In addition, since tritium-related technology is a sensitive technology that controls import and export between countries, there are many restrictions on technology transfer from developed countries. Even if technology is introduced from abroad, This is a sensitive technology that must be approved by.

The fusion reaction products such as helium and unreacted hydrogen isotopes in the fusion reaction of tokamak are separated into helium and pure hydrogen isotopes in the palladium - silver alloy metal membrane device of the tokamak exhaust treatment process.

The separated pure hydrogen isotope is separated into acetic acid, deuterium and tritium in a cryogenic distillation column, wherein the tritium is circulated back to the tokamak through the storage process and the fuel injection system. At this time, a hydrogen storage device is installed in the tritium storage process.

As such, hydrogen has been increasingly used to utilize hydrogen energy as a future alternative energy source, and attention has been paid to the development of hydrogen storage devices.

Most conventional hydrogen storage devices are constructed by placing a hydrogen storage metal in powder form in a closed container and installing a heating wire in the container. Such a conventional hydrogen storage device repeatedly expands and contracts while repeating the process of occluding and storing hydrogen and releasing and releasing hydrogen, whereby the hydrogen storage metal is easily pulverized, There has been a problem that the metal is concentrated and accommodated in a part in the container. For example, there has been a problem that the hydrogen-storing metal in a powder form is concentrated under the inner space of the container. As a result, it is difficult for the hydrogen-storing metal to be uniformly distributed in the container, resulting in a decrease in the heat transfer of the metal-hydride storing the hydrogen, resulting in a problem of lowering the storage and emission efficiency of hydrogen.

In addition, a conventional hydrogen storage material is deteriorated in hydrogen storage performance due to oxidation in the atmosphere during the manufacturing process of the hydrogen storage device, and there is also a fear of fire due to rapid oxidation. This poses a threat to the safety of the production of the hydrogen storage device or leads to an increase in production cost.

US Patent 6,015,041

It is an object of the present invention to provide a hydrogen storage device free from ignition of hydrogen storage metal.

It is another object of the present invention to provide a hydrogen storage device capable of uniformly distributing metal hydrides in a container, thereby allowing rapid storage and release of hydrogen.

A hydrogen storage device free from ignition of hydrogen storage metal according to the present invention includes: a cylinder-shaped storage container; A porous receiving member accommodated in an inner space of the storage container and made of a porous metal including an open pore; A plurality of pillar-shaped uranium, depleted uranium, and Zr-based alloys, wherein the columnar axial direction is parallel to the axial direction of the storage container and is surrounded by the porous storage member, Hydrogen storage metal; A hydrogen supply pipe fluidly connected to the storage vessel to supply hydrogen to the inner space of the storage vessel; A hydrogen outlet pipe fluidly connected to the storage vessel for discharging hydrogen in the storage vessel to a source; And a heat supply source positioned inside or outside the storage container to supply heat to the internal space of the storage container.

The cylindrical shape of the storage container means a hollow cylindrical container shape which is meant to have an internal space.

The hydrogen storage metal stores and releases hydrogen through occlusion and herniation. Here, the occlusion refers to a reaction in which hydrogen reacts with a hydrogen-storing metal to form a metal hydride, and the hernia refers to an endothermic reaction in which heat is absorbed so that hydrogen is released from the hydrogen-storing metal formed of metal hydride. Therefore, when the hydrogen is occluded, the inner space of the storage container is cooled, and when the hydrogen is herniated, the inner space of the storage container is heated.

The porous housing member may be a metal form, and the metal foam may be formed of any one selected from the group consisting of copper, nickel, and an aluminum alloy.

In one embodiment, the porous receiving member can be cylindrical in shape and can include a plurality of insertion holes penetrating the porous receiving member along the axial direction of the storage container. In this case, the columnar hydrogen storage metal can be inserted into all or a part of the plurality of insertion holes.

In another embodiment, the porous receiving member may be comprised of two or more metal foams stacked and arranged along the axial direction of the storage vessel, and each metal foam may include an insertion hole. In this case, the storage container includes a diaphragm whose one end is fixed to the inner surface of the storage container and whose longitudinal direction is parallel to the axial direction of the storage container, and the two or more metal foams include slits that engage with the diaphragm can do.

The heat supply source may include a cartridge heater having a predetermined length, and a part or all of the length of the cartridge heater may be inserted into at least one of the plurality of insertion holes.

The heat supply source may further include an external heater installed on the outer surface of the storage container so as to surround the outer surface of the storage container.

The hydrogen storage device may further include a sealed enclosure enclosing the storage container.

The hydrogen storage device may further include at least one heat shielding member installed between the storage container and the shielding container.

The hydrogen storage device may further include a first outflow preventing filter installed on the hydrogen supply pipe to prevent the hydrogen storage metal particles decomposed from the columnar shape of the hydrogen storage metal into particles, from flowing out from the interior of the storage container; And a second outflow preventing filter installed on the hydrogen discharge pipe to prevent the hydrogen storage metal particles from flowing out from the inside of the storage container.

The first outflow preventing filter and the second outflow preventing filter may be formed of a tubular sintered metal filter or a plate-shaped sintered metal filter.

According to the hydrogen storage device of the present invention, the risk of ignition of the hydrogen storage metal composed of uranium or depleted uranium is greatly reduced, thereby providing a hydrogen storage device free from ignition of the hydrogen storage metal.

Further, the metal hydride can be uniformly distributed in the inner space of the vessel, whereby the hydrogen can be stored and discharged quickly.

In addition, it is possible to prevent the hydrogen storage metal particles, which have been decomposed from the column shape of the hydrogen storage metal and dispersed into the metal foam, from flowing out through the hydrogen supply pipe and the hydrogen discharge pipe to pollute the inside of the hydrogen supply pipe and hydrogen discharge pipe, Can be prevented.

Also, since the storage container containing the hydrogen storage metal is sealed and shielded by the shielding container and the heat shielding material, it is possible to prevent the leakage of hydrogen from the storage container, to prevent oxidation of the hydrogen storage metal and the storage container, and to prevent heat loss.

1 is a cross-sectional view illustrating a configuration of a hydrogen storage device according to an embodiment of the present invention.
Fig. 2 is a perspective view showing the porous housing member and the hydrogen storage metal shown in Fig. 1. Fig.
3 is a cross-sectional view illustrating a configuration of a hydrogen storage device according to another embodiment of the present invention.
Fig. 4 is an exploded perspective view showing the storage container, the porous housing member, the hydrogen storage metal, and the heat supply source shown in Fig. 3;
5 is a sectional view taken along the line A-A 'in Fig.

Hereinafter, a hydrogen storage device according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. The present invention is capable of various modifications and various forms, and specific embodiments are illustrated in the drawings and described in detail in the text. It should be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. Like reference numerals are used for like elements in describing each drawing. In the accompanying drawings, the dimensions of the structures are enlarged to illustrate the present invention in order to clarify the present invention.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, the terms "comprises", "having", and the like are used to specify that a feature, a number, a step, an operation, an element, a part or a combination thereof is described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

1 is a perspective view illustrating a configuration of a hydrogen storage device according to an embodiment of the present invention.

Referring to FIG. 1, a hydrogen storage device 100 according to an embodiment of the present invention includes a storage container 110, a porous housing member 120, a hydrogen storage metal 130, a hydrogen supply pipe 140, (160).

The storage container 110 receives the porous accommodating member 120 and protects the accommodated porous accommodating member 120 from the outside. The storage container 110 is in the form of a cylinder. For example, it may be a hollow cylindrical shape having an internal space.

The porous housing member 120 is made of a porous material and can be configured to receive or enclose the hydrogen storage metal 130. For this purpose, the porous housing member 120 may be a porous metal in the form of an open pore, that is, a metal foam, and may have a plurality of insertion holes 121 formed in the metal foam. have. For example, the porous housing member 120 may have a cylindrical shape having a length corresponding to the length of the inner space of the storage container 110 as shown in FIG. In this case, the insertion holes 121 may penetrate the porous housing member 120 along the axial direction of the cylindrical shape. At this time, the insertion holes 121 are arranged radially. Here, the type of the metal constituting the metal foam is not limited. For example, the metal foam may be copper (Cu), nickel (Ni), and aluminum alloy. The pores of the porous housing member 120, that is, the pores of the metal foam, may have a size capable of accommodating the hydrogen-storing metal particles dispersed from the plurality of hydrogen-storing metals in the process of storing and discharging hydrogen, .

The hydrogen storage metal 130 stores and releases hydrogen by regulating the temperature and pressure of the internal space of the storage container 110 while the hydrogen storage metal 130 is accommodated in the storage container 110. The hydrogen storage metal 130 is preferably columnar. This is because the hydrogen storage metal 130 expands in volume during the process of storing hydrogen and thus generates internal stress. The internal stress generated in this process causes the hydrogen storage metal 130 to be crushed, In the case of a columnar shape, the ability to withstand the internal stress generated in the process of storing hydrogen can be improved.

Further, the hydrogen storage metal 130 is any one of columnar uranium, depleted uranium, and Zr-based alloys. The Zr-based alloy includes, for example, ZrNi, ZrNi, ZrNi _x Co _y Fe _z (x = 0.01 to 0.99, y = 0.01 to 0.99, z = 0.01 to 0.99, x + y + z = 1) . The columnar hydrogen storage metal 130 is easy to handle. That is, the hydrogen storage metal may be oxidized rapidly by contact with the atmosphere. Particularly in the case of powdered hydrogen storage metals, uranium, depleted uranium and Zr-based alloys, especially in powder form, can spontaneously ignite at room temperature. However, if the hydrogen storage metal 130 is used as one of columnar uranium, depleted uranium, and Zr-based alloys, the risk of ignition due to oxidation and rapid oxidation in the atmosphere can be greatly reduced and handling is facilitated.

Preferably, the hydrogen storage metal 130 may be depleted uranium (DU). In the case of depleted uranium, the heroic pressure is high enough to enable the deuterium-tritium supply for DT (deuterium-tritium, deuterium-tritium) There is no problem of anger.

The hydrogen storage metal 130 is inserted into the insertion holes 121 formed in the porous housing member 120 and accommodated in the porous housing member 120. At this time, the hydrogen storage metal 130 is radially disposed in the porous housing member 120 because the insertion holes 121 are disposed radially.

Meanwhile, the hydrogen storage metal 130 is formed in a columnar shape to withstand the internal stress during the hydrogen storage, but a part of the columnar hydrogen storage metal 130 in the process of repeated hydrogen storage / And can be dispersed. At this time, the hydrogen storing metal particles can be dispersed into the metal foam through the open pores of the metal foam, which is the porous housing member 120.

The hydrogen supply pipe 140 supplies hydrogen to the inside of the storage container 110. For this purpose, the hydrogen supply pipe 140 is fluidly connected to the interior space of the storage vessel 110 to supply hydrogen, for example, tritium, to the interior space of the storage vessel 110.

The hydrogen discharge pipe 150 discharges hydrogen from the internal space of the storage container 110 to the supply source. To this end, the hydrogen discharge pipe 150 is fluidly connected to the inner space of the storage vessel 110 and is capable of discharging hydrogen from the inner space of the storage vessel 110 to the supply source. For example, the hydrogen discharge pipe 150 can supply tritium from the internal space of the storage container 110 to the tokamak of the nuclear fusion facility.

The heat supply source 160 supplies heat to the inner space of the storage container 110. The heat supply source 160 may be located inside or outside the storage container 110. For example, the heat supply source 160 may be a cartridge heater. The cartridge heater can be partially inserted into a part of the entire insertion hole 121 of the porous housing member 120 to supply heat to the internal space of the storage container 110. The cartridge heater may be connected directly to a power source outside the storage container 110 or through an electrical feed-through to supply power.

The hydrogen storage device according to an embodiment of the present invention is configured to supply hydrogen (for example, tritium) to the inner space of the storage container 110 through the hydrogen supply pipe 140, The supplied hydrogen is stored by being occluded and reacted with the hydrogen storage metal 130 contained in the insertion hole 121 of the porous storage member 120 and is stored in the hydrogen storage metal 130 storing the hydrogen, The heat is supplied to the internal space of the storage container 110 through the heat supply source 160 to heat the hydrogen storage metal 130 storing the hydrogen to thereby heat the hydrogen storage metal 130 in a reverse direction The hydrogen stored in the hydrogen storage metal 130 may be discharged and discharged, and the hydrogen may be supplied to the supply source, for example, the tokamak of the fusion facility through the hydrogen discharge pipe 150.

When the hydrogen storage and discharge processes are repeated, a part of the hydrogen storage metal 130 may be decomposed and dispersed into hydrogen storage metal particles, and the hydrogen storage metal particles may be dispersed into the metal foam through the open pores of the metal foam And the hydrogen storage metal particles 130 are distributed around the radially arranged columnar hydrogen storage metal 130 so that the hydrogen storage metal 130 is uniformly distributed in the inner space of the storage container 110 Which allows the metal hydride to be uniformly distributed. As the hydrogen storage metal 130 is uniformly distributed, the storage and release of hydrogen can be performed rapidly.

FIG. 3 is a cross-sectional view illustrating a configuration of a hydrogen storage device according to another embodiment of the present invention, and FIG. 4 is an exploded perspective view illustrating the storage container, the porous storage member, the hydrogen storage metal, and the heat supply source shown in FIG.

3 and 4, a hydrogen storage device 200 according to another embodiment of the present invention includes a storage container 210, a porous housing member 220, a hydrogen storage metal 230, a hydrogen supply pipe 240, A hydrogen discharge pipe 250, a heat supply source 260, a shielding container 270, a heat shield member 280, a first outflow preventing filter 291 and a second outflow preventing filter 292.

The storage container 210 receives the porous accommodating member 220 and protects the accommodated porous accommodating member 220 from the outside. The storage container 210 is in the form of a cylinder. For example, it may be a hollow cylindrical shape having an internal space.

The porous housing member 220 is made of a porous material and can be configured to receive or enclose the hydrogen storage metal 230. The porous storage member 220 may be formed of two or more metal foams stacked in the axial direction of the storage container 210 and each porous storage member 220 includes an insertion hole 221, 210). ≪ / RTI > The porous storage member 220 may be formed with a cut portion 223 cut in a circular shape and the cutout portion 223 may be formed in the storage container 210 when the porous storage member 220 is received in the storage container 210 And may be spaced apart from the inner surface of the container 210 to form an inlet space 210a in the storage container 210. [

When the porous housing member 220 is made of two or more metal foams which are superimposed on each other, the storage vessel 210 is fixed at one end to the inner surface of the vessel, and the diverging plate 211 And each of the porous receiving members 220 may include a slit 222 that engages with the partition 211.

The diaphragm 211 is disposed inside the storage container 210 so as to be perpendicular to the circular shape of the cross section of the storage container 210 and parallel to the longitudinal direction of the storage container 210, The length of the partition 211 may be a length corresponding to the length of the inner space of the storage vessel 210 and the length of the short axis of the partition 211 may be less than the circular diameter of the cross section of the storage vessel 210. The diaphragm 211 is configured such that two or more superposed porous storage members 220 accommodated in the inner space of the storage container 210 are rotated in one direction in the storage container 210 so that each of the porous storage members 220 is rotated in one direction It may be a configuration for preventing rotation.

The slits 222 may be formed in each porous housing member 220 so as to be parallel to the partition plate 211 and may be a depth into which the partition plate 211 can be inserted.

The plurality of insertion holes 221 of the porous housing member 220 can be disposed around the slit 222. [ At this time, the arrangement of the plurality of insertion holes 221 is not particularly limited, and may be arranged in a plurality of rows on both sides of the slit 222, for example.

The porous storage member 220 is the same as the porous storage member 220 of the hydrogen storage device according to an embodiment of the present invention except that the porous storage member 220 is composed of two or more metal foams superimposed on each other and includes a slit 222 A more detailed description will be omitted.

The hydrogen storage metal 230 is the same as the hydrogen storage metal 130 according to an embodiment of the present invention, and thus a detailed description thereof will be omitted.

The hydrogen supply pipe 240 supplies hydrogen to the inside of the storage container 210. For this purpose, the hydrogen supply pipe 240 may be in fluid communication with the interior space of the storage vessel 210 to supply hydrogen, for example, tritium, to the interior space of the storage vessel 210. At this time, the hydrogen supply pipe 240 may be positioned at one side of the partition 211 in the storage container 210 by being inserted into the inlet space 210 a, which is a part of the storage container 210.

The hydrogen discharge pipe 250 discharges hydrogen from the internal space of the storage container 210 to the supply source. To this end, the hydrogen discharge pipe 250 is fluidly connected to the interior space of the storage vessel 210. At this time, the hydrogen discharge pipe 250 may be positioned at the other side of the diaphragm 211 where the hydrogen supply pipe 240 is not inserted, and a part of the hydrogen discharge pipe 250 is inserted into the mouth space 210a, which is a tube in the storage container 210. The hydrogen discharge pipe 250 can discharge hydrogen from the internal space of the storage container 210 to the supply source. For example, the hydrogen discharge pipe 250 can supply tritium from the internal space of the storage container 210 to the tokamak of the fusion facility.

The heat supply source 260 supplies heat to the inner space of the storage container 210. The heat supply source 260 may be located inside and outside the storage container 210. As an example, the heat supply source 260 may include a cartridge heater 261 and an external heater 262.

The cartridge heater 261 may be partially inserted into a part of the entire insertion hole 221 of the porous housing member 220 to supply heat to the internal space of the storage container 210. The cartridge heater 261 may be directly connected to a power source external to the storage container 110 or may be connected through an electrical feed-through to supply power.

The external heater 262 may be installed on the outer surface of the storage container 210 so as to surround the outer surface of the storage container 210. As an example, the external heater 262 may be a coil type heater. In this case, the coil-type external heater 262 may be spirally wound around the outer surface of the storage container 210 to surround the storage container 210. The external heater 262 may be installed in the storage vessel 210 and the shielding vessel 270 through feed-through processing.

The shielding container 270 receives the storage container 210. To this end, the shielding container 270 may be in the form of a tube having an inner diameter larger than the outer diameter of the storage container 210. For example, it may be in the form of a cylindrical tube. The shielding vessel 270 is adapted to receive and seal the storage vessel 210 to thereby prevent the loss of heat applied to the storage vessel 210 and to prevent leakage of hydrogen from the storage vessel 210, 230 and the storage container 210 are protected from the outside to prevent oxidation.

The heat shield member 280 blocks heat transfer from the storage container 210 to the outside. To this end, the heat shielding member 280 is installed between the storage container 210 and the shielding container 270. In one example, the heat shield member 280 may be in the form of a cylindrical tubular metal or metal foil. This heat shielding member 280 may be installed between the storage container 210 and the shielding container 270 as one or more layers.

The first outflow preventing filter 291 is provided on the hydrogen supply pipe 240 to prevent hydrogen storage metal particles decomposed from the columnar shape of the hydrogen storage metal into particles, from flowing out from the interior of the storage container 210. That is, the first outflow preventing filter 291 prevents the hydrogen storage metal particles from flowing out through the hydrogen supply pipe 240.

For example, the first outflow preventing filter 291 may be a tubular sintered metal filter or a plate-shaped sintered metal filter. In the case of the tubular shape, the first outflow preventing filter 291 may be installed to surround the opening of the end of the portion of the hydrogen supply pipe 240 inserted into the storage container 210, Lt; RTI ID = 0.0 > 210a. ≪ / RTI > In the case of the plate shape, the first outflow preventing filter 291 may be provided so as to be disposed on the passage inside the hydrogen supply pipe 240. At this time, the first outflow preventing filter 291 may be located outside the inlet space 210a or the storage container 210, which is a tube in the storage container 210. [

The second outflow preventing filter 292 is installed on the hydrogen discharge pipe 250 to prevent the hydrogen storage metal particles from flowing out from the inside of the storage container 210. The structure in which the second outflow preventing filter 292 is provided on the hydrogen exhausting pipe 250 is similar to the first outflow preventing filter 291 and therefore is not described in the description of the first outflow preventing filter 291, .

The process of storing and discharging hydrogen, for example, tritium, in the hydrogen storage metal 230 in the hydrogen storage device according to another embodiment of the present invention is the same as that of the hydrogen storage device according to the embodiment of the present invention, A description thereof will be omitted.

Since the hydrogen storage device according to another embodiment of the present invention is made of two or more metal foams in which the porous storage members 220 are superposed on each other, It is possible to provide a plurality of regions for storing the hydrogen-storing metal particles, which are decomposed and dispersed from the columnar shape of the metal 230, into a plurality of fractions so that the hydrogen-storing metal particles are concentrated in a part of the entire length of the porous housing member 220 And can be prevented from being accommodated.

The hydrogen storage metal 230 is heated by the external heater 262 of the coil type surrounding the cartridge heater 261 and the storage container 210 in which the hydrogen storage metal 230 is stored in the storage container 210 So that the hydrogen storage metal 230 can be heated more easily, whereby the hydrogen storage metal 230 and hydrogen can be reacted quickly.

Further, hydrogen storage metal particles, which are decomposed from the columnar shape of the hydrogen storage metal 230 by the repeated hydrogen storage and release processes and dispersed into the metal foam, are introduced into the hydrogen supply pipe 240 and the hydrogen discharge pipe 250, The hydrogen is prevented from flowing out of the storage container 210 and the shielding container 270 by the outflow preventing filter 291 and the second outflow preventing filter 292, And the hydrogen storage amount can be prevented from decreasing.

Since the storage container 210 is accommodated and sealed in the shield container 270 and the heat shield member 280 is installed between the storage container 210 and the shield container 270, The hydrogen storage metal 230 and the storage vessel 210 can be protected from the outside to prevent the oxidation and the loss of heat applied to the storage vessel 210 can be prevented.

The description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features presented herein.

Claims (11)

A cylinder-shaped storage container;
A porous receiving member accommodated in an inner space of the storage container and made of a porous metal including an open pore;
A plurality of pillar-shaped uranium, depleted uranium, and Zr-based alloys, wherein the columnar axial direction is parallel to the axial direction of the storage container and is surrounded by the porous storage member, Hydrogen storage metal;
A hydrogen supply pipe fluidly connected to the storage vessel to supply hydrogen to the inner space of the storage vessel;
A hydrogen outlet pipe fluidly connected to the storage vessel for discharging hydrogen in the storage vessel to a source; And
And a heat supply source located inside or outside the storage container to supply heat to the inner space of the storage container,
Wherein the pore size of the open pores is such that the hydrogen-storing metal particles decomposed during hydrogen occlusion and herniation from the hydrogen storage metal can be dispersed into the porous storage member through the open pores.
Hydrogen storage A hydrogen storage device without the risk of ignition of metals. The method according to claim 1,
Wherein said porous receiving member includes a plurality of insertion holes penetrating said porous receiving member so as to be parallel to the axial direction of said storage container,
Characterized in that the columnar hydrogen storage metal is inserted into all or part of the plurality of insertion holes.
Hydrogen storage A hydrogen storage device without the risk of ignition of metals. 3. The method of claim 2,
Characterized in that the porous receiving member is a metal form.
Hydrogen storage A hydrogen storage device without the risk of ignition of metals. The method of claim 3,
Characterized in that the porous housing member is made of two or more metal foams stacked and arranged along the axial direction of the storage vessel.
Hydrogen storage A hydrogen storage device without the risk of ignition of metals. 5. The method of claim 4,
Wherein the storage container includes a diaphragm having one end fixed to the inner surface of the storage container and arranged so that its longitudinal direction is parallel to the axial direction of the storage container,
Characterized in that the two or more metal foams comprise slits that engage the diaphragm.
Hydrogen storage A hydrogen storage device without the risk of ignition of metals. 3. The method of claim 2,
Wherein the heat supply source includes a cartridge heater having a predetermined length,
Characterized in that part or all of the length of the cartridge heater is inserted into at least one of the plurality of insertion holes.
Hydrogen storage A hydrogen storage device without the risk of ignition of metals. 3. The method of claim 2,
Wherein the heat supply source further comprises an external heater installed on the outer surface of the storage container so as to surround the outer surface of the storage container.
Hydrogen storage A hydrogen storage device without the risk of ignition of metals. The method according to claim 1,
Characterized in that the hydrogen storage device further comprises a sealed enclosure enclosing the storage container.
Hydrogen storage A hydrogen storage device without the risk of ignition of metals. 9. The method of claim 8,
Wherein the hydrogen storage device further comprises at least one heat shielding member disposed between the storage container and the shielding container.
Hydrogen storage A hydrogen storage device without the risk of ignition of metals. The method according to claim 1,
The hydrogen storage device includes:
A first outflow preventing filter installed on the hydrogen supply pipe to prevent the hydrogen storage metal particles, which have been decomposed from the columnar shape of the hydrogen storage metal, into particles, from flowing out from the interior of the storage container; And
And a second outflow preventing filter provided on the hydrogen discharge pipe to prevent the hydrogen storage metal particles from flowing out from the inside of the storage container.
Hydrogen storage A hydrogen storage device without the risk of ignition of metals. 11. The method of claim 10,
Wherein the first outflow preventing filter and the second outflow preventing filter are formed of a tubular sintered metal filter or a plate-shaped sintered metal filter.
Hydrogen storage A hydrogen storage device without the risk of ignition of metals.

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