WO2017099543A1

WO2017099543A1 - Hydrogen storage device using column-shaped hydrogen storage metal

Info

Publication number: WO2017099543A1
Application number: PCT/KR2016/014498
Authority: WO
Inventors: 강현구; 윤세훈; 장민호; 정동유; 오윤희
Original assignee: 한국기초과학지원연구원
Priority date: 2015-12-11
Filing date: 2016-12-12
Publication date: 2017-06-15
Also published as: KR20170069618A; KR101867137B1

Abstract

A hydrogen storage device is disclosed. The hydrogen storage device comprises: a cylinder-shaped storage container; a porous accommodating member accommodated in an inner space of the storage container; a column-shaped hydrogen storage metal of which the axial direction of the column shape is disposed parallel to the axial direction of the storage container such that the hydrogen storage metal is accommodated inside the storage container while being surrounded by the porous accommodating member; a hydrogen supply pipe connected to the storage container so as to enable fluid to flow therebetween, thereby supplying hydrogen to the inner space of the storage container; a hydrogen discharge pipe connected to the storage container so as to enable the fluid to flow therebetween, thereby discharging the hydrogen inside the storage container to a supply site; and a heat supply source positioned inside or outside the storage container so as to supply heat to the inner space of the storage container. When the hydrogen storage device is used, metal hydrides can be uniformly distributed in the inner space of the container, thereby enabling hydrogen to be quickly stored and discharged.

Description

Hydrogen storage device using columnar hydrogen storage metal

TECHNICAL FIELD The present invention relates to a hydrogen storage device, and more particularly, to a hydrogen storage device having increased storage and release efficiency and production safety of hydrogen.

High efficiency, eco-friendly clean energy technology among energy-related technologies that have excellent characteristics as future energy media for the replacement of fossil fuel, which is exhausted worldwide as the industry develops rapidly, and the global conservation of environment and efficient use of energy sources. Development is very urgent. Accordingly, interest in technology development of hydrogen energy is increasing, and securing of hydrogen energy utilization technology including hydrogen production, storage, and transportation will be an important factor in determining energy security and national competitiveness in the 21st century.

When used as an energy source, hydrogen can be produced using indefinite water as a raw material. After use, hydrogen is recycled back to water, and no pollutants are generated except for the generation of very small NOx 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 the advantage of being easy to use as fuel such as fuel or fuel cell by direct combustion. Therefore, hydrogen can be used in almost all fields used in current energy systems, such as general fuel vehicles, hydrogen airplanes, and fuel cells, from industrial basic materials, and thus, it is considered to be most suitable for future energy systems.

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

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

In addition, since tritium-related technology is a sensitive technology that controls import and export between countries, there are many limitations in technology transfer from developed countries, and even if technology is introduced from abroad, it is a supplier of technology in other fields or when exporting technology to a third country. Corresponds to a sensitive technology that needs to be approved.

A fusion reaction product such as helium and an unreacted hydrogen isotope generated in a fusion reactor such as Tokamak are separated into helium and pure hydrogen isotope in the palladium-silver alloy metal membrane device of the Tokamak exhaust treatment process.

The separated pure hydrogen isotope is separated into hard hydrogen, deuterium and tritium in an ultra low temperature distillation column, of which tritium is circulated back to the toka membrane through a storage process and a fuel injection system. At this time, the hydrogen storage device is installed in the tritium storage process.

As such, efforts to use hydrogen energy as an alternative energy source in the future are gradually increasing, and accordingly, attention has been paid to the development of a hydrogen storage device.

Most conventional hydrogen storage devices contain hydrogen storage metal in powder form in an airtight container and are constructed by installing heating wires in the container. In the conventional hydrogen storage device, the expansion and contraction are repeated while the hydrogen storage metal occludes and stores hydrogen and the hydrogen is desorbed and released, thereby making the hydrogen storage metal easily powdered, thereby storing hydrogen in powder form. There has been a problem that the metal is contained and accommodated in part within the container. For example, there has been a problem that the hydrogen storage metal in powder form is concentrated under the inner space of the container. As a result, the hydrogen storage metal is difficult to be evenly distributed in the container, which results in a problem that the heat transfer of the metal hydride storing hydrogen is lowered and the storage and release efficiency of hydrogen is lowered.

In addition, a conventional hydrogen storage material is deteriorated in the hydrogen storage performance due to oxidation in the air during the manufacturing process of the hydrogen storage device, and some of the fire risk due to rapid oxidation also exists. This threatens the manufacturing safety of the hydrogen storage device, or there is a problem leading to an increase in the manufacturing cost.

[Preceding technical literature]

[Patent Documents]

(Patent Document 1) US Patent US 6,015,041

It is an object of the present invention to provide a hydrogen storage device that allows metal hydrides to be uniformly distributed in a container and thereby allows for the storage and release of hydrogen quickly.

Hydrogen storage device according to the invention, the storage container in the form of a cylinder; A porous receiving member accommodated in an inner space of the storage container; A hydrogen storage metal having a columnar shape, the axial direction of the columnar shape being disposed parallel to the axial direction of the storage container, and accommodated inside the storage container while being surrounded by the porous receiving member; A hydrogen supply pipe connected in fluid communication with the storage container to supply hydrogen to the internal space of the storage container; A hydrogen discharge pipe connected in fluid communication with the storage container to discharge hydrogen in the storage container to a supply destination; And a heat supply source located inside or outside the storage container to supply heat to the internal space of the storage container.

The cylinder shape of the storage container means, ie, an empty cylindrical container which is deceived to have an inner space.

Hydrogen storage metals store and release hydrogen through occlusion and hernia. Here, occlusion refers to a reaction in which hydrogen reacts with a hydrogen storage metal to form a metal hydride, and degassing refers to an endothermic reaction that absorbs heat to release hydrogen from a hydrogen storage metal formed of a metal hydride. Therefore, when storing hydrogen, the internal space of the storage container is cooled, and when the hydrogen is extracted, the internal space of the storage container is heated.

The hydrogen storage metal is LaNi-based metal, LaNiAl-based metal, ZrCo, depleted uranium, uranium, titanium, palladium, ZrNi, ZiNi _x Co _y (x = 0.01 ~ 0.99, y = 1-x), ZrNi _x Co _y Fe _z (x = 0.01-0.99, y = 0.01-0.99, z = 0.01-0.99, x + y + z = 1) and Zi _x Hf _y Co (x = 0.01-0.99, y = 1-x) It may be any one selected from.

The porous receiving member may be a metal form, and the metal form may be made of any one selected from the group consisting of copper, nickel, and aluminum alloys.

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

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

The heat source includes a cartridge heater having a predetermined length, and part or all of the length of the cartridge heater may be inserted into one or more insertion holes 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 to surround the outer surface of the storage container.

The hydrogen storage device may further include a shielded container containing the storage container and sealed.

The hydrogen storage device may further include one or more heat shield members installed between the storage container and the shielding container.

The hydrogen storage device may include: a first outflow prevention filter installed on the hydrogen supply pipe to prevent the hydrogen storage metal particles decomposed into a particle form from the pillar shape of the hydrogen storage metal from flowing out of the inside of the storage container; And a second outflow prevention 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 prevention filter and the second outflow prevention filter may be formed of a tubular sintered metal filter or a plate-shaped sintered metal filter.

According to the hydrogen storage device according to the present invention, the metal hydride can be uniformly distributed in the inner space of the container, whereby the storage and release of hydrogen can be made quickly.

In addition, the hydrogen storage metal particles decomposed from the pillar shape of the hydrogen storage metal and dispersed into the metal foam are prevented from leaking out through the hydrogen supply pipe and the hydrogen discharge pipe to contaminate the inside of the hydrogen supply pipe and the hydrogen discharge pipe or reduce the amount of hydrogen storage. Can be prevented.

In addition, since the shielding container and the heat shield member are protected by sealing the storage container containing the hydrogen storage metal to prevent the leakage of hydrogen from the storage container, it is possible to prevent the oxidation and thermal loss of the hydrogen storage metal and the storage container.

1 is a cross-sectional view showing the configuration of a hydrogen storage device according to an embodiment of the present invention.

FIG. 2 is a perspective view illustrating the porous receiving member and the hydrogen storage metal shown in FIG. 1.

3 is a cross-sectional view showing the configuration of a hydrogen storage device according to another embodiment of the present invention.

FIG. 4 is an exploded perspective view illustrating the storage container, the porous receiving member, the hydrogen storage metal, and the heat supply source shown in FIG. 3.

5 is a cross-sectional view taken along the line AA ′ of FIG. 3.

Hereinafter, a hydrogen storage device according to an exemplary embodiment of the present invention will be described in detail with reference to the accompanying drawings. As the inventive concept allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the text. However, this is not intended to limit the present invention to the specific disclosed form, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention. In describing the drawings, similar reference numerals are used for similar elements. In the accompanying drawings, the dimensions of the structures are shown in an enlarged scale than actual for clarity of the invention.

Terms such as first and second 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 the second component, and similarly, the second component may also be referred to as the first component.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "comprise" or "have" are intended to indicate that there is a feature, number, step, action, component, part, or combination thereof described on the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, 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. Terms such as those defined in the commonly used dictionaries should be construed as having meanings consistent with the meanings in the context of the related art and shall not be construed in ideal or excessively formal meanings unless expressly defined in this application. Do not.

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

Referring to Figure 1, the hydrogen storage device 100 according to an embodiment of the present invention, the storage container 110, porous receiving member 120, hydrogen storage metal 130, hydrogen supply pipe 140 and heat supply source 160.

The storage container 110 accommodates the porous receiving member 120, and protects the accommodated porous receiving 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 inner space.

The porous receiving member 120 is made of a porous material, and may be configured to receive or wrap the hydrogen storage metal 130. To this end, the porous receiving member 120 may be a porous metal in the form of open pores, that is, a metal foam, and may be formed in a form in which a plurality of insertion holes 121 are formed in the metal foam. have. For example, the porous receiving 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. 2. In this case, the insertion holes 121 may penetrate the porous receiving member 120 in the axial direction of the cylindrical shape. At this time, the insertion holes 121 are disposed radially. Here, the type of metal constituting the metal foam is not limited, and for example, the metal foam may be copper (Cu), nickel (Ni), and an aluminum alloy.

The hydrogen storage metal 130 stores and releases hydrogen by adjusting the temperature and pressure of the internal space of the storage container 110 in a state where the hydrogen storage metal 130 is accommodated in the storage container 110. Hydrogen storage metal 130 is preferably a columnar shape. Because, the hydrogen storage metal 130 is expanded in the process of storing hydrogen and thus the internal stress occurs, the internal stress generated at this time to fracture the hydrogen storage metal 130, the hydrogen storage metal 130 This is because when formed in a columnar shape, the ability to withstand internal stresses generated during hydrogen storage can be improved.

In addition, the columnar hydrogen storage metal 230 is easy to handle. That is, the hydrogen storage metal may be rapidly oxidized by contact with the atmosphere. In particular, in the case of a hydrogen storage metal in the form of powder can spontaneously ignite even at room temperature. However, the use of the columnar hydrogen storage metal 230 greatly reduces the risk of ignition due to oxidation and rapid oxidation in the air, thereby facilitating the handling of metal oxides.

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

The hydrogen storage metal 130 is a LaNi-based metal, LaNiAl-based metal, ZrCo, depleted uranium, uranium, titanium, palladium, ZrNi, ZiNi _x Co _y (x = 0.01 ~ 0.99, y = 1-x), ZrNi _x Co _y Fe _z (x = 0.01-0.99, y = 0.01-0.99, z = 0.01-0.99, x + y + z = 1) and Zi _x Hf _y Co (x = 0.01-0.99, y = 1-x) It may be composed of any one selected from the group consisting of. Preferably, the hydrogen storage metal 130 may be depleted uranium (DU). In the case of depleted uranium, the hernia pressure is high and uneven enough so that deuterium-tritium can be smoothly supplied for the deuterium-tritium (DT) reaction required for fusion energy production in a reactor such as a tokamak in a fusion facility. Because there is no problem of anger.

On the other hand, the hydrogen storage metal 130 is formed in a columnar shape to withstand the internal stress during hydrogen storage, but a portion of the columnar hydrogen storage metal 130 in the form of a column during repeated storage and release of hydrogen from the hydrogen storage metal It can be broken down and dispersed into particles. In this case, the hydrogen storage metal particles may be dispersed into the metal foam through open pores of the metal foam, which is the porous receiving member 120.

The hydrogen supply pipe 140 supplies hydrogen into the storage container 110. To this end, the hydrogen supply pipe 140 is connected in fluid communication with the internal space of the storage container 110 may supply hydrogen, for example tritium, to the internal space of the storage container 110.

The hydrogen discharge pipe 150 discharges hydrogen from the internal space of the storage container 110 to the supply destination. To this end, the hydrogen discharge pipe 150 is connected in fluid communication with the internal space of the storage container 110 may discharge hydrogen from the internal space of the storage container 110 to the supply destination. For example, the hydrogen discharge pipe 150 may supply tritium from the inner space of the storage container 110 to the tokamak of the fusion facility.

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

In the hydrogen storage device according to an embodiment of the present invention, hydrogen (eg, tritium) is supplied to the internal space of the storage container 110 through the hydrogen supply pipe 140, and then into the storage container 110. The supplied hydrogen is stored and stored in the hydrogen storage metal 130 accommodated in the insertion hole 121 of the porous accommodating member 120, and hydrogen is stored from the hydrogen storage metal 130, that is, the metal hydride. If it is to be discharged by supplying heat to the internal space of the storage container 110 through the heat supply source 160 to heat the hydrogen storage metal 130 storing hydrogen to react in the reverse direction of the occlusion reaction of the hydrogen storage metal 130 Thus, the hydrogen stored in the hydrogen storage metal 130 may be desorbed and released, and the released hydrogen may be supplied to a supply source, for example, a toka membrane of a fusion facility through the hydrogen discharge pipe 150.

When the storage and release process of hydrogen is repeated, the hydrogen storage metal 130 may be partially decomposed into hydrogen storage metal particles from a columnar shape and dispersed, and the hydrogen storage metal particles may be dispersed into the metal foam through open pores of the metal foam. The hydrogen storage metal particles are dispersed and distributed around the radially arranged columnar hydrogen storage metal 130, whereby the hydrogen storage metal 130 is uniformly distributed in the internal space of the storage container 110. This allows the metal hydride to be evenly distributed. As the hydrogen storage metal 130 is uniformly distributed, hydrogen may be quickly stored and released.

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

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

The storage container 210 accommodates the porous receiving member 220 and protects the accommodated porous receiving 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 inner space.

The porous receiving member 220 is made of a porous material, and may be configured to accommodate or surround the hydrogen storage metal 230. The porous receiving member 220 may be formed of two or more metal foams stacked and arranged along the axial direction of the storage container 210, and each porous receiving member 220 may include an insertion hole 221. It may be accommodated and nested in the internal space of the 210. In addition, the porous accommodating member 220 may be formed with a cutout 223 in which a portion is cut in a circular shape, and the cutout 223 is stored when the porous accommodating member 220 is accommodated in the storage container 210. It may be spaced apart from the inner surface of the container 210 to form a pipe inlet space (210a) in the storage container (210).

When the porous receiving member 220 is formed of two or more metal foams superimposed on each other, the storage container 210 has one end fixed to the inner surface of the storage container so that the longitudinal direction is parallel to the axial direction of the storage container 211. ), And each porous receiving member 220 may include a slit 222 coupled to the diaphragm 211.

The diaphragm 211 is disposed inside the storage vessel 210 so as to be perpendicular to the circular shape of the cross section of the storage vessel 210 and parallel to the longitudinal direction of the storage vessel 210, and the long axis direction of the diaphragm 211 is the storage vessel. It may be a length corresponding to the length of the inner space of the 210 and the short axis direction of the diaphragm 211 may be a length smaller than the diameter of the circular shape of the cross section of the storage container (210). The diaphragm 211 has two or more overlapping porous receiving members 220 accommodated in the inner space of the storage container 210 rotate in one direction in the storage container 210 so that each porous receiving member 220 is in one direction. It may be a configuration for preventing rotation.

The slit 222 is formed in each porous receiving member 220 to be parallel to the diaphragm 211, and may have a depth at which the diaphragm 211 may be inserted.

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

Since the porous receiving member 220 is the same as the porous receiving member 220 of the hydrogen storage device according to an embodiment of the present invention except that it consists of two or more overlapping metal foam and includes a slit 222 More detailed description will be omitted.

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

The hydrogen supply pipe 240 supplies hydrogen into the storage container 210. To this end, the hydrogen supply pipe 240 is connected in fluid communication with the internal space of the storage container 210 may supply hydrogen, for example tritium, to the internal space of the storage container 210. At this time, a portion of the hydrogen supply pipe 240 is inserted into the pipe inlet space 210a in the storage container 210 may be located on one side of the diaphragm 211 in the storage container 210.

The hydrogen discharge pipe 250 discharges hydrogen from the internal space of the storage container 210 to the supply destination. To this end, the hydrogen discharge pipe 250 is connected in fluid communication with the internal space of the storage container 210. At this time, a portion of the hydrogen discharge pipe 250 is inserted into the pipe inlet space 210a in the storage container 210 may be located on the other side of the diaphragm 211 in which the hydrogen supply pipe 240 is not located. The hydrogen discharge pipe 250 may discharge hydrogen from the internal space of the storage container 210 to the supply destination. For example, the hydrogen discharge pipe 250 may supply tritium from the inner space of the storage container 210 to the tokamak of the fusion facility.

The heat source 260 supplies heat to the inner space of the storage container 210. The heat source 260 may be located inside and outside the storage container 210. For example, the heat 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 receiving 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 connected through electric feed-through to supply power.

The external heater 262 may be installed on the outer surface of the storage container 210 to surround the outer surface of the storage container 210. For example, the external heater 262 may be a coil type heater. In this case, the coil-type external heater 262 may be wound around the outer surface of the storage container 210 in a spiral shape to surround the storage container 210. The external heater 262 may be installed by being treated with a feedthrough with respect to the storage container 210 and the shielding container 270.

The shielding container 270 accommodates 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 cylindrical tubular. The shielding container 270 is sealed by receiving the storage container 210, thereby blocking the loss of heat applied to the storage container 210, preventing the leakage of hydrogen from the storage container 210, and storing the hydrogen storage metal ( 230 and the storage container 210 can be 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 shield member 280 is installed between the storage container 210 and the shielding container 270. For example, the heat shield 280 may be in the form of a cylindrical tubular metal or metal foil. The heat shield member 280 may be installed between the storage container 210 and the shielding container 270 in one or more layers.

The first outflow prevention filter 291 is installed on the hydrogen supply pipe 240 to prevent the hydrogen storage metal particles decomposed in the form of particles from the pillar shape of the hydrogen storage metal to flow out from the inside of the storage container 210. That is, the first outflow prevention filter 291 prevents the hydrogen storage metal particles from flowing out through the hydrogen supply pipe 240.

For example, the first outflow prevention 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 prevention filter 291 may be installed to surround the opening of the end of the portion inserted into the storage container 210 of the hydrogen supply pipe 240, and at this time, the pipe inlet space in the storage container 210. May be located within 210a. In the case of a plate shape, the first outflow prevention filter 291 may be installed to be disposed on a passage inside the hydrogen supply pipe 240. In this case, the first outflow prevention filter 291 may be located outside the pipe inlet space 210a or the storage container 210 in the storage container 210.

The second outflow prevention filter 292 is installed on the hydrogen discharge pipe 250 to prevent the hydrogen storage metal particles from flowing out of the interior of the storage vessel 210. Since the structure of the second outflow prevention filter 292 is installed on the hydrogen discharge pipe 250 is similar to the first outflow prevention filter 291, the second outflow prevention filter 291 is replaced with the description of the first outflow prevention filter 291, and a detailed description thereof is omitted. Let's do it.

In the hydrogen storage device according to another embodiment of the present invention, the process of storing and releasing hydrogen, for example, tritium, by the hydrogen storage metal 230 is the same as the hydrogen storage device according to the embodiment of the present invention. The description 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 receiving member 220 is overlapped with each other, hydrogen storage is performed due to the process of repeatedly storing and releasing tritium of the hydrogen storage metal 230. A plurality of regions containing hydrogen storage metal particles decomposed and dispersed from the columnar shape of the metal 230 may be provided in a plurality, so that the hydrogen storage metal particles are concentrated to a part of the entire length of the porous accommodation member 220. Can be prevented.

In addition, in the process of storing and releasing hydrogen, the heating of the hydrogen storage metal 230 is performed by the cartridge heater 261 located in the storage container 210 and the coil type external heater 262 surrounding the storage container 210. Since the hydrogen storage metal 230 can be heated more easily, whereby the reaction between the hydrogen storage metal 230 and hydrogen can be made faster.

In addition, hydrogen storage metal particles decomposed from the pillar shape of the hydrogen storage metal 230 and dispersed into the metal foam by repeated storage and release processes of hydrogen are installed on the hydrogen supply pipe 240 and the hydrogen discharge pipe 250. The outflow prevention filter 291 and the second outflow prevention filter 292 is prevented from leaking to the outside of the storage container 210 and the shielding container 270, whereby the hydrogen supply pipe 240 and the hydrogen discharge pipe 250 Contamination of the inside of the container or reduction of the hydrogen storage amount can be prevented.

In addition, since the storage container 210 is accommodated and sealed in the shielding container 270, and a heat shielding member 280 is installed between the storage container 210 and the shielding container 270, the hydrogen from the storage container 210 is stored. The leakage may be prevented, and the hydrogen storage metal 230 and the storage container 210 may be protected from the outside to prevent oxidation, and the loss of heat applied to the storage container 210 may be prevented.

The description of the presented 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 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 should not be limited to the embodiments set forth herein but should be construed in the broadest scope consistent with the principles and novel features set forth herein.

Claims

Cylinder-type storage containers;

A porous receiving member accommodated in an inner space of the storage container;

A hydrogen storage metal having a columnar shape, the axial direction of the columnar shape being disposed parallel to the axial direction of the storage container, and accommodated inside the storage container while being surrounded by the porous receiving member;

A hydrogen supply pipe connected in fluid communication with the storage container to supply hydrogen to the internal space of the storage container;

A hydrogen discharge pipe connected in fluid communication with the storage container to discharge hydrogen in the storage container to a supply destination; And

Located inside or outside the storage container, characterized in that it comprises a heat supply source for supplying heat to the internal space of the storage container,

Hydrogen storage device.
The method of claim 1,

The porous receiving member includes a plurality of insertion holes penetrated through the porous receiving member to be parallel to the axial direction of the storage container,

The pillar-shaped hydrogen storage metal is characterized in that inserted into all or part of the plurality of insertion holes,

Hydrogen storage device.
The method of claim 2,

The porous receiving member is characterized in that the metal form (Metal form),

Hydrogen storage device.
The method of claim 3,

The porous receiving member is characterized in that consisting of two or more metal foams stacked arranged along the axial direction of the storage container,

Hydrogen storage device.
The method of claim 4, wherein

The storage container includes a diaphragm having one end fixed to an inner surface of the storage container and having a longitudinal direction parallel to an axial direction of the storage container,

The at least two metal foam is characterized in that it comprises a slit to engage with the diaphragm,

Hydrogen storage device.
The method of claim 2,

The heat supply source comprises a cartridge heater having a predetermined length,

Part or all of the length of the cartridge heater is inserted into at least one of the insertion holes of the plurality of insertion holes,

Hydrogen storage device.
The method of claim 2,

The heat supply source further comprises an external heater installed on the outer surface of the storage container to surround the outer surface of the storage container,

Hydrogen storage device.
The method of claim 1,

The columnar hydrogen storage metal is LaNi-based metal, LaNiAl-based metal, ZrCo, depleted uranium, uranium, titanium, palladium, ZrNi, ZiNi x Co y (x = 0.01 ~ 0.99, y = 1-x), ZrNi x Co with y Fe z (x = 0.01-0.99, y = 0.01-0.99, z = 0.01-0.99, x + y + z = 1) and Zi x Hf y Co (x = 0.01-0.99, y = 1-x) Characterized in that any one selected from the group consisting of,

Hydrogen storage device.
The method of claim 1,

The hydrogen storage device further comprises a shielded container for receiving the storage container,

Hydrogen storage device.
The method of claim 9,

The hydrogen storage device further comprises at least one heat shield member installed between the storage vessel and the shield vessel,

Hydrogen storage device.
The method of claim 1,

The hydrogen storage device,

A first outflow prevention filter installed on the hydrogen supply pipe to prevent the hydrogen storage metal particles decomposed in the form of particles from the pillar shape of the hydrogen storage metal from flowing out of the inside of the storage container; And

And a second outflow prevention filter installed on the hydrogen discharge pipe to prevent the hydrogen storage metal particles from flowing out from the inside of the storage container.

Hydrogen storage device.
The method of claim 11,

The first outflow prevention filter and the second outflow prevention filter, characterized in that consisting of a tubular sintered metal filter or a plate-shaped sintered metal filter,

Hydrogen storage device.