KR102430095B1 - Apparatus for storing solid-state hydrogen - Google Patents

Abstract

The present invention relates to a solid hydrogen storage device for storing hydrogen in a solid hydrogen storage method, comprising: a container body in which one end and the other end of a body for storing hydrogen are formed in a hemispherical shape; Hydrogen in/out unit coupled to one end of the container body; a heating medium in/out which is coupled to the other end of the container body and through which a heat medium for heat exchange for use in hydrogen absorption and release is entered; A double tube connected to the heating medium inlet, a plurality of branch tubes extending in the longitudinal direction of the container body after branching in the radial direction from the outer tube of the double tube, and the container from the inside of the outer tube of the double tube a manifold having a center tube extending along the longitudinal direction of the body, and a closing tube to which the branch tube and the center tube are connected, the manifold disposed inside the container body; a fin plate fitted to the branch tube or the center tube of the manifold portion and stacked in a plurality along the longitudinal direction inside the container body; and a storage disk disposed in plurality on the pin plate and fitted in the branch tube or the center tube, and made of solid powder for storing hydrogen.

Description

Solid hydrogen storage device {APPARATUS FOR STORING SOLID-STATE HYDROGEN}

The present invention relates to a solid hydrogen storage device, and more particularly, a solid hydrogen storage device that is lightweight and secures an efficient heat exchange amount and thermal uniformity to enable efficient heat exchange in a solid hydrogen storage method for supplying hydrogen gas fuel for a fuel cell vehicle. is about

Recently, as the climate and environment agreement is practically operated, and the oil price is renewing the highest every day, the development of new energy that can replace oil is urgently needed.

Fossil energy, which cannot be recycled as an energy source, is in danger of being depleted due to the rapid increase in industrialization, and harmful substances produced in the combustion process are threatening the environment and natural ecosystems.

New and renewable energy sources, which are emerging to solve this situation, are being opened in a direction that allows continuous supply without emitting harmful substances.

For example, hydrogen can be continuously produced from water abundantly present anywhere on the earth, so there is no fear of depletion of its raw materials.

On the other hand, as one of the essential prerequisites for driving a fuel cell vehicle, a stable supply of hydrogen gas fuel is essential. For the construction of such a hydrogen storage device, three major methods are being studied: a high-pressure gas storage method, a liquid hydrogen storage method, and a solid hydrogen storage method. All studies are being conducted in a way that increases the storage amount of hydrogen accompanied by safety.

The high-pressure gas storage method is the most common method and stores the high-pressure gas at 700 bar, but has a limit in the storage of additional hydrogen gas.

The liquid hydrogen storage method has the advantage of storing a large amount of hydrogen in terms of liquefying hydrogen, but has a problem in that the cryogenic temperature must be maintained due to the nature of liquefaction at cryogenic temperatures.

In the case of solid hydrogen storage method, hydrogen gas is reacted with solid powder for storage of hydrogen and stored. Compared to high-pressure gas, relatively low pressure (e.g., less than 150 bar) and unlike liquid storage method, high temperature (e.g., not cryogenic) 200℃) operation, it has the advantage of being relatively easy to develop and the storage amount of hydrogen gas is large.

However, the solid hydrogen storage method according to the prior art also has many development tasks, and development to solve this problem is currently being studied by leading national institutions and companies.

The first task is required to develop a metal hydride powder that can solidify a large amount of gaseous hydrogen.

The second task is to develop a technology to secure the structural heat exchange performance of the storage container. That is, when hydrogen is absorbed and released, heat is generated. At the same time, it is necessary to minimize the volume and weight through an efficient configuration so that it can be mounted in a fuel cell vehicle having a limited space while securing the performance of cooling and temperature increase of the heat. .

However, the solid hydrogen storage device according to the prior art is equipped with a relatively complicated and heavy conventional heat exchanger so as to store hydrogen in the solid powder by adsorbing or to release the stored hydrogen from the solid powder.

That is, the heat exchanger of the prior art includes a refrigerant distribution structure having a complex structure provided between the refrigerant inlet and the refrigerant outlet, and a plurality of U-tube cooling channels connected to the refrigerant distribution structure, wherein the structure having a pocket for filling solid powder is each It is connected to the cooling channel.

However, the heat exchanger of the prior art solid hydrogen storage device has a complicated shape and is difficult to manufacture. Although it is required, the weight storage density and volume storage density of the solid hydrogen storage device are also faced with a difficulty in making them relatively large.

That is, the solid hydrogen storage device of the prior art has a very complicated connection structure of the heat exchanger, and thus there is a problem in that the number of additional parts and the man-hours of the manufacturing process increase.

In addition, since some solid hydrogen storage devices are manufactured as a heat radiation type without a heat exchanger, there is a disadvantage in that heat generated during absorption and release of hydrogen cannot be effectively treated.

An object of the present invention is to provide a manifold having a branch tube and a center tube branched in a radial direction from a light-weighted double tube and a central tube, which has been proposed in view of the above circumstances, thereby smoothly supplying fuel using a solid hydrogen storage method. It can be carried out, structurally lightweight and efficient heat exchange is possible, and it is possible to increase the amount of hydrogen storage by securing the amount of heat exchange and heat uniformity required for a fuel cell vehicle, relatively reducing the number of tubes for manifolding, and leakage of heat medium. It is to provide a solid hydrogen storage device configured to minimize the points.

Solid hydrogen storage device according to the present invention for achieving the above object, a container body having one end and the other end of the body for storing hydrogen formed in a hemispherical shape; Hydrogen in/out unit coupled to one end of the container body; a heating medium in/out which is coupled to the other end of the container body and through which a heat medium for heat exchange for use in hydrogen absorption and release is entered; A double tube connected to the heating medium inlet, a plurality of branch tubes extending in the longitudinal direction of the container body after branching in the radial direction from the outer tube of the double tube, and the container from the inside of the outer tube of the double tube a manifold having a center tube extending along the longitudinal direction of the body, and a closing tube to which the branch tube and the center tube are connected, the manifold disposed inside the container body; a fin plate fitted to the branch tube or the center tube of the manifold portion and stacked in a plurality along the longitudinal direction inside the container body; and a storage disk disposed in plurality on the pin plate and fitted in the branch tube or the center tube, and made of solid powder for storing hydrogen.

The container body includes a press plate disposed inside the container body with respect to the outside of the one pin plate and the other pin plate stacked on the final end of the pin plate.

The hydrogen inlet includes a sintered stainless filter disposed in the passage of the hydrogen absorption and release.

The heat medium inlet and out, an inlet of a hollow ring cross-section coupled to the end of the double tube to introduce a heat medium between the outer tube and the inner tube of the double tube, and the double tube to discharge the introduced heat medium and a discharge part connected to the other end of the center tube which is an inner tube.

The manifold portion, the center hole formed in the end surface of the double tube so that the other end of the central tube airtightly penetrates; a first branch hole formed on a circumferential surface of the outer tube of the double tube so as to be connected through the other end of the branch tube; and a second branch hole formed on the circumferential surface of the closing tube so as to be connected through one end of the branch tube.

The finishing tube is integrally formed with a connection part welded to one end of the center tube and connected to each other, and the connection part on the opposite side of the place where the center tube is located, and has a larger diameter than the connection part, and the end of the closing tube and a cap-shaped closing part disposed to be spaced apart from the hydrogen inlet and out in the interior of the container body.

The pin plate includes: a circular first base plate on which a plurality of the storage disks are disposed; A first center tube through hole formed in the center of the first base plate, a first branch tube through hole formed in the first base plate to correspond to the position of the branch tube, and the first center tube through hole formed in the periphery of the first center tube through hole A first hydrogen flow hole formed in the first base plate and through which the released hydrogen flows, and a first hydrogen flow hole formed in the first base plate so as not to overlap the position of the storage disk while being close to the circular wall, compared to the first hydrogen flow hole and a second hydrogen flow hole having a relatively large diameter.

The press plate may include a second base plate that is in close contact with the surface of the storage disk or the surface of the pin plate, a second center tube through hole formed in the center of the second base plate, and a position of the branch tube. A second branch tube through hole formed in the second base plate, a third hydrogen flow hole formed in the second base plate around the second center tube through hole and through which the emitted hydrogen flows, and the second base plate and a fourth hydrogen flow hole formed on the second base plate so as not to overlap the position of the storage disk while being close to the outer periphery of the , and having a relatively larger diameter than that of the third hydrogen flow hole.

The solid hydrogen storage device according to the present invention is manufactured by providing a lightweight manifold reducing the number of tubes for a plurality of manifolds for supply and recovery of a thermal medium that heats and heats generated when hydrogen is absorbed or released. It can simplify the process and has the advantage of maximizing safety by minimizing the leakage point of the heating medium.

The solid hydrogen storage device according to the present invention includes a pin plate and a press plate, wherein a storage disk made of a plurality of hydrogen absorption or adsorption solid powders is disposed on the pin plate, and a plurality of pin plates are stacked in the longitudinal direction of the container. Then, after pressing with the press plate, by fixing the press plate to the container body, the stacked pin plates can be fixed so that the pin plates do not move inside the container body, through which the heat exchange performance is improved and the storage disk It has the advantage of securing the structural safety of

The solid hydrogen storage device according to the present invention has the advantage of improving the pressure resistance performance by implementing a hemispherical shape at one end and the other end in the longitudinal direction of the container body.

1 is a perspective view of a solid hydrogen storage device according to an embodiment of the present invention.
Figure 2 is an exploded perspective view in which the container body and the heating medium inlet in Figure 1 are removed.
Figure 3 is a perspective view of the manifold shown in Figure 2;
4 is an enlarged cross-sectional view of a state in which a hydrogen inlet/outlet is coupled to the circle A of FIG. 3;
Fig. 5 is an enlarged cross-sectional view of circle B of Fig. 3;
6 is a perspective view for explaining a coupling relationship between the manifold shown in FIG. 2 and the pin plate;
7 is a perspective view for explaining a coupling relationship between the manifold shown in FIG. 2, the pin plate, and the storage disk.
FIG. 8 is an enlarged cross-sectional view illustrating the hydrogen inlet/outlet shown in FIG. 1 ;
9 is a simulation analysis capture showing the cooling performance of the solid hydrogen storage device shown in FIG. 1 when hydrogen is inhaled.
FIG. 10 is a simulation analysis capture diagram showing the distribution of the heat medium flow rate of the manifold of the solid hydrogen storage device shown in FIG. 1 when hydrogen is inhaled.

Advantages and features of the present invention and methods of achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in a variety of different forms, only these embodiments allow the disclosure of the present invention to be complete, and common knowledge in the technical field to which the present invention belongs It is provided to fully inform the possessor of the scope of the invention, and the present invention is defined by the description of the claims.

Meanwhile, the terminology used herein is for the purpose of describing the embodiments and is not intended to limit the present invention. In this specification, the singular also includes the plural, unless specifically stated otherwise in the phrase. As used herein, "comprises" and/or "comprising" refers to the presence of one or more other components, steps, operations and/or elements in a referenced element, step, operation and/or element. or addition is not excluded. Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view of a solid hydrogen storage device according to an embodiment of the present invention, and FIG. 2 is an exploded perspective view in which the container body and the heating medium inlet and out are removed in FIG. 1 .

1 or 2, the present embodiment is a container body 100, a hydrogen inlet 200, a heat medium inlet 300, a manifold 400, pin plates 500, 501, a storage disk 600 , and press plates 700 and 701 .

The container body 100 forms one end 111 and the other end 112 of the body 110 for storing hydrogen in a hemispherical shape.

For assembly or mounting of components to be placed inside the container body 100 , one end 111 or the other end 112 may be individually manufactured from the body 110 and then combined through welding.

The container body 100 is made of a metal material and is manufactured in the form of a pressure container.

The hydrogen inlet 200 is a passage for absorption and release of hydrogen. The hydrogen inlet 200 is coupled to one end 111 of the container body 100 .

The heating medium inlet 300 is coupled to the other end 112 of the container body 100, and the heat medium for heat exchange according to hydrogen absorption and release is in and out.

The manifold 400 serves to distribute the heat medium flowing into the heat medium inlet 300 to the branch tube corresponding to the heat exchanger, and collects the heat medium of the branch tube and collects it back toward the heat medium inlet 300 and discharges it. And, it plays a role of exchanging the heat of the heating medium and the heat of the storage disk 600 through the branch tube.

The pin plate 500 may be stacked on the inside of the container body 100 or made of a plurality to form a plurality of stages.

The fin plate 500 is inserted into the branch tube or the center tube of the manifold 400 , and is stacked in plurality in the longitudinal direction inside the container body 100 .

The fin plate 500 supports the storage disk 600 and may also serve as heat dissipation and heat dissipation to improve heat exchange performance.

The storage disk 600 may be a kind of solid hydrogen powder disk (Compacted Metal Hydride) made of solid powder for hydrogen storage.

The storage disk 600 is arranged in plurality for each pin plate 500 , and is stacked in plurality along the longitudinal direction in the container body 100 together with the pin plate 500 .

Each storage disk 600 is formed in a ring shape with an insertion hole formed in the center.

In this way, the plurality of storage disks 600 are disposed on each pin plate 500 in a state of being inserted into the branch tube or the center tube of the manifold 400 .

The branch tube or the center tube may pass through the insertion hole of the stacked storage disk 600 and extend in the tube length direction.

The press plate is disposed inside the container body 100 based on the outside of the pin plate 500 and the other pin plate 501 stacked on the final end of the pin plate (500).

That is, the press plates 700 and 701 support the top or bottom of the stacked pin plates 500 and 501, or the press plates 700 and 701 are pressed in a direction closer to each other. It can be fixed to the inner surface.

3 is a perspective view of the manifold shown in FIG. 2 , FIG. 4 is an enlarged cross-sectional view of a state in which the hydrogen inlet/outlet is coupled to the circle A of FIG. 3 , and FIG. 5 is an enlarged cross-sectional view of the circle B of FIG. 3 .

3 to 5 , the manifold 200 is a component disposed inside the container body.

The manifold 400 is a double tube 410 connected to the heating medium inlet 300, and is branched from the outer tube 411 of the double tube 410 in the radial direction and then extends along the longitudinal direction of the container body. A plurality of branch tubes 420, the center tube 430 extending along the longitudinal direction of the container body from the inside of the outer tube 411 of the double tube 410, the branch tube 420 and the center tube 430 is connected and provided with a closing tube 440 .

The branch tube 420 may be manufactured in a form having an inclined elbow at one end and the other end of the straight pipe, respectively.

The double tube 410 includes an outer tube 411 for a heat medium before heat exchange (eg, an arrow indicating a flow flow in the branch tube 420 of the manifold 400), and the other end of the center tube 430. It may be composed of a female inner tube (431). Here, an arrow indicating a flow flow in the center tube 430 of the manifold 400 means a heat medium in a state after heat exchange.

The other end of the center tube 430 and the inner tube 431 may be integrally manufactured as a pipe member of the same diameter, or may be separately manufactured and then connected to each other by welding to be combined.

The outer tube 411 serves to evenly distribute the heating medium toward the plurality of branch tubes 420 because it is connected to the plurality of branch tubes 420 for the inflow of the heating medium.

As indicated by a dotted line in FIG. 4 , the heat medium inlet 300 includes an inlet 310 and an outlet 320 .

The inlet 310 is coupled to the end of the double tube 410 to introduce a heating medium between the outer tube 411 and the inner tube 431 of the double tube 410, and has a hollow ring cross section.

An inlet hose 311 for introducing a heating medium may be further coupled to the outer wall of the inlet 310 .

The discharge unit 320 is connected to the inner tube 431 of the double tube 410 corresponding to the other end of the center tube 430 so that the introduced heat medium can be discharged after completing the heat exchange. A supply hose for supplying a heating medium (not shown) may be further coupled to the discharge unit 320 . The supply hose or the inlet hose 311 is connected to a heating medium supply and recovery device (not shown).

The manifold 400 includes a center hole 412 formed in the end surface of the double tube 410 so that the other end of the center tube 430, which is the inner tube 431, passes through the airtightly. A weld is formed on the outer surface of the center tube 430 in contact with the edge of the center hole 412 and the edge.

The manifolding part 400 includes a first branch hole 413 formed in the circumferential surface of the outer tube 411 of the double tube 410 so as to be connected through the other end of the branch tube 420 . The first branch hole 413 may be formed in plurality based on the number and arrangement position of the branch tube 420 .

Referring to FIG. 5 , the manifold 400 includes a second branch hole 443 formed on the circumferential surface of the closing tube 440 so as to be connected through one end of the branch tube 420 . The second branch hole 443 may also be formed in plurality based on the number and arrangement position of the branch tube 420 .

The second branch hole 443 or the portion where the first branch hole 413 of FIG. 4 is connected to the branch tube 420 is also formed with a weld, so that an airtight connection relationship can be maintained.

The plurality of branch tubes 420 are a kind of sub-heat exchange tube.

The center tube 430 disposed in the center of the manifold 400 is a kind of main heat exchange tube.

One end of the branch tube 420 is combined into a closing tube 440 .

The finishing tube 440 includes a connection portion 441 that is welded to one end of the center tube 430 and connected to each other.

In addition, the finishing tube 440 is integrally formed with the connection part 441 on the opposite side of the place where the center tube 430 is located, has a larger diameter than the connection part 441, and the end of the finishing tube 440 is formed. and a closing portion 442 in the shape of a closing cap. Here, the closing portion 442 is spaced apart from the hydrogen inlet 200 or the sintered stainless filter 210 (sintered stainless filter) of the hydrogen inlet 200 as shown in FIG. 8 in the interior of the container body 100 . placed so

Referring to FIG. 4 , the heating medium of the heating medium supply and recovery device (not shown) is supplied into the inlet 310 of the heating medium inlet 300 of the manifold 400 .

Thereafter, the heating medium flows into the space between the outer tube 411 and the inner tube 431 . Thereafter, the heat medium flows toward the branch tube 420 through the plurality of first branch holes 413 and is dispersed.

In addition, the heating medium of each branch tube 420 performs heat exchange with heat generated when hydrogen is absorbed or released.

Referring to FIG. 5 , the heat medium after heat exchange is combined from the branch tube 420 through the second branch hole 443 inside the closing tube 440 . Thereafter, the combined heating medium flows toward the heating medium inlet 300 again via the center tube 430 . That is, the heating medium of the center tube 430 finally reaches the inner tube 431 of the heating medium inlet 300 and the discharge unit 320 of the heating medium inlet 300, and then the heating medium supply and recovery device (not shown). is recovered, and the supply and recovery is repeated to circulate the heating medium.

Compared to the conventional structure consisting of a plurality of heat exchange pipes of a bundle structure, a manifold pipe disposed on one side of the heat exchange pipe, and a manifold pipe disposed on the other side of the heat exchange pipe, the internal component of the tank body is It is possible to efficiently arrange and at the same time, the inflow and outflow of the heating medium are integrated into one location, so that the management point of the leakage of the heating medium can be minimized.

6 is a perspective view for explaining the coupling relationship between the manifold and the pin plate shown in FIG. 2 , and FIG. 7 is a perspective view for explaining the coupling relationship between the manifold shown in FIG. 2 and the pin plate and the storage disk. .

6 and 7, the pin plate 500 is formed along the periphery of the circular first base plate 510 on which a plurality of storage disks 600 are disposed, and the first base plate 510, and the It includes a circular wall 520 having a protruding height that is relatively smaller than the thickness of the storage disk 600 . The outer diameter of the circular wall 520 or the first base plate 510 may have a dimension that can be inserted into the inner diameter of the container body described above.

The pin plate 500 includes a first center tube through hole 530 formed in the center of the first base plate 510 and a first formed in the first base plate 510 to correspond to the position of the branch tube 420 . A first branch tube through-hole 540 and a first hydrogen flow hole 550 formed in the first base plate 510 around the first center tube through-hole 530 and through which the emitted hydrogen flows; The second is formed on the first base plate 510 so as not to overlap the position of the storage disk 600 while being close to the circular wall 520 and having a relatively larger diameter than that of the first hydrogen flow hole 550 . It includes a hydrogen flow hole 560 .

The centers of the first hydrogen flow hole 550 and the second hydrogen flow hole 560 for each pin plate 500 coincide with each other.

The pin plates 500 and 501 have three roles. The first is by adding an additional contact area in addition to the contact area between the branch tube 420 and the center tube 430 and the storage disk 600, thereby increasing the heat exchange efficiency during cooling and temperature increase of the storage disk 600 and at the same time increasing the thermal uniformity. can be achieved Second, the movement of the storage disk 600 can be minimized by wrapping the lower portion and the outside of the storage disk 600 . Third, the second hydrogen flow hole 560 of the pin plates 500 and 501 has a regular structure together with the fourth hydrogen flow hole 760 of the press plates 700 and 701, which will be described with reference to FIG. 8 below. As the centers are formed in a conforming structure to each other, it is possible to facilitate absorption and release of hydrogen or to serve as a passage through which hydrogen flows smoothly.

FIG. 8 is an enlarged cross-sectional view for explaining the hydrogen inlet/outlet shown in FIG. 1 .

Referring to FIG. 8 , the hydrogen inlet 200 includes a sintered stainless filter 210 disposed in a passage for hydrogen absorption and release.

The flow of hydrogen is essential, and in this embodiment, the flow of hydrogen, that is, hydrogen gas, is made through the sintered stainless filter 210 . The sintered stainless filter 210 is made of a porous material, and due to the nature of the material, liquid and solid cannot flow in and out, and only gaseous materials can move.

In addition, the closing tube 440 is disposed to be spaced apart from the hydrogen inlet 440 to correspond to the separation distance (G) in the interior of the container body (100). Since the pressure of hydrogen within and around the separation distance G can be converted into an output pressure by receiving heat from the heating medium of the closing tube 440, hydrogen can be discharged more efficiently.

One side of the press plate 700 includes a second base plate 710 in close contact with the surface of the storage disk (600). Meanwhile, the second base plate of the other side press plate 701 supporting the lowermost pin plate 501 may be in close contact with the surface of the lowermost pin plate 501 .

These press plates 700 and 701 are formed in the second base plate 710 to correspond to the positions of the second center tube through-hole 730 formed in the center of the second base plate 710 and the branch tube 420 . A second branch tube through hole 740 and a third hydrogen flow hole 750 formed in the second base plate 710 around the second center tube through hole 740 and through which the emitted hydrogen flows; , is formed on the second base plate 710 so as not to overlap the position of the storage disk 600 while being close to the outer periphery of the second base plate 710 and relatively larger than the third hydrogen flow hole 750 . and a fourth hydrogen flow hole 760 having a diameter.

The center of the fourth hydrogen flow hole 760 of the press plates 700 and 701 coincides with the center of the second hydrogen flow hole of the pin plates 500 and 501, so that a smooth flow of hydrogen in the container body 100 is achieved. can

In addition, the inflow and outflow of the heating medium and the inflow and outflow of hydrogen gas are made in opposite directions to each other in the storage container 100 .

The press plates 700 and 701 are used for pressing both ends of the assembly consisting of the stacked pin plates 500 and 501 and the storage disk 600, and after assembly, through the fixing of several stages of the storage disk 600 It can play a role in preventing movement.

9 is a simulation analysis capture showing the cooling performance of the solid hydrogen storage device shown in FIG. 1 when hydrogen is inhaled, and FIG. 10 is a heat medium flow rate distribution of the manifold of the solid hydrogen storage device shown in FIG. 1 when hydrogen is inhaled. This is a simulation analysis capture diagram.

9 and 10 show the results obtained by analyzing the flow flow of the heating medium and its cooling performance when hydrogen is sucked based on the components described above.

As can be seen from FIG. 9 , it can be confirmed that the temperature distribution of the surrounding six storage disks except for the center is very similar. At this time, it can be seen that the part where the temperature of the center of the surrounding storage disk is very low is due to the temperature of the heating medium, and it can be confirmed that it is cooled evenly from the center.

In the case of the central storage disk, it can be seen that the temperature is relatively low compared to the temperature of the six surrounding storage disks. This is due to two causes. The first may be caused by a large contact area with the storage disk due to the large diameter of the center tube.

Referring to FIG. 10 , another reason seems to be due to the flow velocity of the center tube of the manifold is faster than that of the branch tube.

Accordingly, in this embodiment, two methods can be used to minimize the temperature difference between the storage disk through which the center tube passes and the storage disk through which the branch tube around it passes.

That is, the first may be a method of adjusting the ratio of the diameter of the storage disk through which the center tube passes to the diameter of the storage disk through which the branch tube passes, and the second is to control the flow rate of the heating medium by adjusting the diameter of the center tube. There is a way. In this way, if the temperature difference between the storage disks is adjusted or controlled and optimized, uniform heat distribution can be achieved.

The above description is merely illustrative of the technical idea of the present invention, and various modifications and variations are possible by those of ordinary skill in the art to which the present invention pertains without departing from the essential characteristics of the present invention. Accordingly, the embodiments expressed in the present invention are not intended to limit the technical spirit of the present invention, but to illustrate, and the scope of the present invention is not limited by these embodiments. The protection scope of the present invention should be construed by the following claims, and all technical ideas that are equivalent to or within the equivalent range should be construed as being included in the scope of the present invention.

100: container body 200: hydrogen inlet
210: sintered stainless filter 300: heat medium inlet
400: manifold 500, 501: pin plate
600: storage disk 700, 701: press plate

Claims (8)

A container body in which one end and the other end of the body for storing hydrogen are formed in a hemispherical shape;
Hydrogen in/out unit coupled to one end of the container body;
a heating medium in/out which is coupled to the other end of the container body and through which a heat medium for heat exchange for use in hydrogen absorption and release is entered and exited;
A double tube connected to the heating medium inlet, a plurality of branch tubes extending in the longitudinal direction of the container body after branching in the radial direction from the outer tube of the double tube, and the container from the inside of the outer tube of the double tube a manifold having a center tube extending along the longitudinal direction of the body, and a closing tube to which the branch tube and the center tube are connected, the manifold disposed inside the container body;
a fin plate fitted to the branch tube or the center tube of the manifold portion and stacked in a plurality along the longitudinal direction inside the container body; and
A storage disk disposed in plurality on the pin plate and fitted to the branch tube or center tube, and made of a solid powder for hydrogen storage; includes,
The pin plate is
a circular first base plate on which the storage disks are arranged in plurality;
a circular wall formed along the periphery of the first base plate and protruding relatively smaller than the thickness of the storage disk;
a first center tube through hole formed in the center of the first base plate;
a first branch tube through hole formed in the first base plate to correspond to the position of the branch tube;
a first hydrogen flow hole formed in the first base plate around the first center tube through hole and through which the emitted hydrogen flows; and
To include a second hydrogen flow hole formed in the first base plate so as not to overlap the position of the storage disk while being close to the circular wall and having a relatively larger diameter than the first hydrogen flow hole
Phosphorus solid hydrogen storage device.
The method of claim 1,
The container body includes a press plate disposed inside the container body with respect to the outside of the one pin plate and the other pin plate stacked on the final end of the pin plate.
Phosphorus solid hydrogen storage device.
The method of claim 1,
The hydrogen inlet portion comprising a sintered stainless filter (sintered stainless filter) disposed in the passage of the hydrogen absorption and release
Phosphorus solid hydrogen storage device.
The method of claim 1,
The heat medium inlet part,
An inlet of a hollow ring cross-section coupled to the end of the double tube to introduce a heating medium between the outer tube and the inner tube of the double tube, and
What includes a discharge part connected to the other end of the center tube, which is an inner tube of the double tube to discharge the introduced heating medium
Phosphorus solid hydrogen storage device.
5. The method of claim 4,
The manifold part,
a center hole formed in the end surface of the double tube so that the other end of the center tube passes through it airtightly;
a first branch hole formed in a circumferential surface of the outer tube of the double tube so as to be connected through the other end of the branch tube;
What includes a second branch hole formed on the circumferential surface of the closing tube so as to be connected through one end of the branch tube
Phosphorus solid hydrogen storage device.
6. The method of claim 5,
The end tube is
a connection part welded to one end of the center tube and connected to each other;
A cap that is integrally formed on the connection part on the opposite side of where the center tube is located, has a larger diameter than the connection part, closes the end of the closing tube, and is spaced apart from the hydrogen inlet part inside the container body including a shape finish,
Phosphorus solid hydrogen storage device.
delete 3. The method of claim 2,
The press plate is
a second base plate that is in close contact with the surface of the storage disk or the surface of the pin plate;
a second center tube through hole formed in the center of the second base plate;
a second branch tube through hole formed in the second base plate to correspond to the position of the branch tube;
a third hydrogen flow hole formed in the second base plate around the second center tube through hole and through which the released hydrogen flows; and
To include a fourth hydrogen flow hole formed in the second base plate so as not to overlap the position of the storage disk while being close to the outer periphery of the second base plate and having a relatively larger diameter than that of the third hydrogen flow hole
Phosphorus solid hydrogen storage device.

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