Solid hydrogen storage container

Abstract

The utility model relates to a solid hydrogen storage container, which comprises a cylinder body and end sockets fixedly welded with an opening of the cylinder body, baffle plates fixed with the end sockets are arranged in the cylinder body, and a water inlet pipe, a water outlet pipe and a charging pipe which are communicated with the inside of the cylinder body are fixedly connected on the outer side wall of one end socket. A coil pipe communicated with the water inlet pipe and the water outlet pipe is arranged on the baffle plate in a penetrating mode, and solid hydrogen storage assemblies are arranged on the inner side wall of the barrel and the inner side wall of the end socket. The hydrogen storage device has the beneficial effect that a worker can conveniently store hydrogen.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydrogen storage equipment technical field, specifically point to a kind of solid hydrogen storage container. BACKGROUND

[0002] With the transformation of global energy structure to low carbonization, hydrogen energy is regarded as one of the core carriers of future energy system due to its clean, high energy density and renewable characteristics. However, the large-scale application of hydrogen energy is highly dependent on safe and efficient hydrogen storage technology. Current mainstream hydrogen storage methods include high-pressure gaseous hydrogen storage, cryogenic liquid hydrogen storage and solid hydrogen storage, but all face significant challenges: high-pressure gaseous hydrogen storage (35-70 MPa) has safety risks and volume energy density bottlenecks; cryogenic liquid hydrogen storage (-253℃) has very high energy consumption and complex adiabatic technology; although solid hydrogen storage is highly concerned due to its high safety and theoretical hydrogen storage density advantages, its commercialization process is limited by material kinetics performance and thermal management efficiency.

[0003] The hydrogen storage capacity and reaction rate of solid hydrogen storage materials (such as metal hydride, chemical hydride and carbon-based adsorption material) are highly dependent on temperature control. During hydrogen absorption, hydrogen molecules need to diffuse to the inside of the material and combine with active sites, which is accompanied by significant heat release effect (such as MgH2 heat generation of 76 kJ / mol H2), if the heat cannot be removed in time, it will cause local overheating, material performance degradation and even hydrogen absorption interruption. Traditional solid hydrogen storage containers mostly use external jacket cooling or phase change material passive heat dissipation, but have low heat exchange efficiency and uneven temperature distribution, especially under continuous hydrogen charging and discharging conditions, the temperature difference between the edge and center of the container can exceed 50℃, which seriously restricts the hydrogen storage capacity and cycle life.

[0004] In addition, the flow characteristics of hydrogen in the container directly affect the hydrogen storage efficiency. The existing design generally lacks active regulation of the gas flow field, which causes hydrogen to easily penetrate the material bed along the shortest path, forming a "short circuit" phenomenon, causing some hydrogen storage materials not to be fully utilized. Studies have shown that the actual hydrogen storage capacity of a solid hydrogen storage system without optimized flow field may be less than 60% of the theoretical value, and the hydrogen absorption time is prolonged by more than 30%. UTILITY MODEL CONTENTS

[0005] The utility model provides a solid hydrogen storage container that can store hydrogen gas conveniently for workers in view of the deficiencies of the prior art.

[0006] The utility model is realized through the following technical schemes, provide a kind of solid hydrogen storage container, including cylinder and the head welded fixedly with the opening of cylinder, the cylinder is provided with with the head fixed baffle, one of the outer side wall of the head is fixed with the water inlet pipe, water outlet pipe and charging pipe that are communicated with the inside of cylinder, the baffle is provided with the coil pipe that is communicated with the water inlet pipe and water outlet pipe, the inside wall of the cylinder and the head is all provided with solid hydrogen storage assembly.

[0007] The utility model discloses in the using process, through setting up the cylinder and with the cylinder opening welding fixed head, be provided with with the fixed baffle in the cylinder, one of the head's outside wall is fixed with the water inlet pipe, the water outlet pipe and the loading pipe that communicate with the cylinder, the baffle is provided with the coil pipe that leads to the water inlet pipe and the water outlet pipe, the inside wall of cylinder and head all is provided with solid hydrogen storage component, the device when using, need first through loading pipe to send into the compressed hydrogen gas to the cylinder and head inside, and make hydrogen gas and solid hydrogen storage component reversible chemical reaction, realize the high density safe storage of hydrogen gas through the generation metal hydride, in this chemical reaction process, will outward heat, again through the water inlet pipe and the water outlet pipe with the circulating water cooling device of outside connection, make the circulating water cooling device of outside through the water inlet pipe to send water to the coil pipe, and make the water in the coil pipe return to the circulating water cooling device and cool after completing the water heat exchange in the coil pipe, to this inside the cylinder and head is cooled, utilize the spoiler can change the flow path of hydrogen gas, guide gas to be evenly distributed in the container, make hydrogen gas can efficiently, evenly contact with solid hydrogen storage component in the filling and discharging process, improve the filling efficiency of hydrogen storage container, this can work staff store hydrogen gas.

[0008] As preferred, one of the head's outside wall is provided with support pipe, the inside wall of another head is fixed with sleeve pipe, the baffle and head are fixed through the support pipe that passes through one of the head and baffle and extends to the sleeve pipe in another head, the inside wall of support pipe is provided with the plug that is located on one side of the head away from the cylinder. Through one of the head's outside wall is provided with support pipe, the inside wall of another head is fixed with sleeve pipe, the baffle and head are fixed through the support pipe that passes through one of the head and baffle and extends to the sleeve pipe in another head, the inside wall of support pipe is provided with the plug that is located on one side of the head away from the cylinder, utilize support pipe, sleeve pipe and plug can improve the stability of baffle and coil pipe when the device is used.

[0009] As preferred, the baffle is provided with several in the cylinder, and the several baffles are equidistantly distributed along the length direction of the cylinder. By providing several baffles in the cylinder, and equidistantly distributing the several baffles along the length direction of the cylinder, the stability of the coil pipe during use of the device can be improved.

[0010] As preferred, one of the head's outside wall is provided with thermometer port, and a thermometer is installed in the thermometer port. By providing a thermometer port on the outside wall of one of the heads, and installing a thermometer in the thermometer port, the temperature inside the device can be conveniently monitored by the staff through the thermometer port and the thermometer.

[0011] Preferably, a pressure gauge port is provided on the outer wall of one of the end caps, and a pressure gauge is installed inside the pressure gauge port. By providing a pressure gauge port on the outer wall of one of the end caps and installing a pressure gauge inside the pressure gauge port, it is convenient for personnel to monitor the pressure inside the device.

[0012] Preferably, the coil includes a plurality of first connecting pipes and a plurality of second connecting pipes passing through a plurality of baffles. The plurality of first connecting pipes and the plurality of second connecting pipes are equidistantly distributed along the circumference of the support pipe. The plurality of first connecting pipes are located inside the plurality of second connecting pipes. The first connecting pipes and the second connecting pipes are distributed at intervals. The end of one of the second connecting pipes is connected to the inlet pipe. The end of one of the first connecting pipes adjacent to one of the second connecting pipes is connected to the outlet pipe. The ends of adjacent first connecting pipes and second connecting pipes are connected by a connecting elbow. The coil includes several first connecting pipes and several second connecting pipes passing through several baffles. The first connecting pipes and several second connecting pipes are equidistantly distributed along the circumference of the support pipe. The first connecting pipes are located inside the second connecting pipes. The first connecting pipes and second connecting pipes are distributed at intervals. The end of one of the second connecting pipes is connected to the inlet pipe, and the end of one of the first connecting pipes adjacent to one of the second connecting pipes is connected to the outlet pipe. The ends of adjacent first connecting pipes and second connecting pipes are connected by a connecting elbow. When the device is in use, the external circulating water cooling device supplies water to one of the second connecting pipes through the inlet pipe, and the water continuously enters the first connecting pipes and second connecting pipes through the connecting elbow. Finally, the water is transported back to the circulating water cooling device from one of the first connecting pipes adjacent to one of the second connecting pipes through the outlet pipe for cooling. This allows the water in the circulating water cooling device to circulate within the device, thus facilitating the cooling of the device's interior by the staff.

[0013] The beneficial effects of this utility model are as follows: By setting a cylindrical body and a cap welded and fixed to the opening of the cylindrical body, a baffle plate fixed to the cap is set inside the cylindrical body. An inlet pipe, an outlet pipe, and a loading pipe communicating with the inside of the cylindrical body are fixedly connected to the outer wall of one of the caps. A coil communicating with the inlet pipe and the outlet pipe is installed on the baffle plate. Solid hydrogen storage components are set on the inner walls of both the cylindrical body and the cap. When the device is in use, compressed hydrogen needs to be fed into the inside of the cylindrical body and the cap through the loading pipe, and the hydrogen needs to undergo a reversible chemical reaction with the solid hydrogen storage components to generate metal hydrides, thereby achieving high-density safe storage of hydrogen. During this chemical reaction, heat is released outwards. By connecting the inlet and outlet pipes to an external circulating water cooling device, the external circulating water cooling device supplies water to the coil through the inlet pipe. After completing the heat exchange with the water in the coil, the water in the coil returns to the circulating water cooling device through the outlet pipe for cooling. This cools the inside of the cylinder and end caps. The baffle plate can change the flow path of hydrogen, guiding the gas to be evenly distributed in the container. This allows the hydrogen to contact the solid hydrogen storage components efficiently and evenly during the filling and discharging process, improving the filling efficiency of the hydrogen storage container. This makes it easier for staff to store hydrogen. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a side view of the structure of this utility model;

[0016] Figure 3 for Figure 2 Structural perspective view;

[0017] Figure 4 for Figure 1 Perspective view of section A in the middle;

[0018] Figure 5 This is a detailed drawing of the baffle structure in this utility model;

[0019] As shown in the figure:

[0020] 1. Shell, 2. Feeding pipe, 3. Support pipe, 4. Water inlet pipe, 5. Thermometer port, 6. Water outlet pipe, 7. Thermometer, 8. Pressure gauge, 9. Plug, 10. Pressure gauge port, 11. First connecting pipe, 12. Second connecting pipe, 13. Connecting elbow, 14. Baffle plate, 15. Sleeve, 16. End cap, 17. Solid hydrogen storage assembly. Detailed Implementation

[0021] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to explain the solution.

[0022] like Figures 1-5The solid hydrogen storage container of this utility model includes a cylindrical body 1 and a head 16 welded and fixed to the opening of the cylindrical body 1. A baffle plate 14 fixed to the head 16 is provided inside the cylindrical body 1. An inlet pipe 4, an outlet pipe 6 and a loading pipe 2 communicating with the inside of the cylindrical body 1 are fixedly connected to the outer wall of the head 16. A coil communicating with the inlet pipe 4 and the outlet pipe 6 is provided on the baffle plate 14. Solid hydrogen storage components 17 are provided on the inner side walls of both the cylindrical body 1 and the head 16.

[0023] A support pipe 3 is installed on the outer wall of one end cap 16, and a sleeve 15 is fixed to the inner wall of the other end cap 16. The baffle plate 14 and the end cap 16 are fixed by the support pipe 3, which passes through one end cap 16 and the baffle plate 14 and extends into the sleeve 15 on the other end cap 16. A plug 9 is provided on the inner wall of the support pipe 3, located on the side of one end cap 16 away from the cylinder 1. The support pipe 3, the sleeve 15, and the plug 9 can improve the stability of the baffle plate 14 and the coil during use. By providing several baffle plates 14 inside the cylinder 1, and distributing the baffle plates 14 at equal intervals along the length of the cylinder 1, the stability of the coil during use can be improved. A thermometer port 5 is provided on the outer wall of one end cap 16, and a thermometer 7 is installed in the thermometer port 5. The thermometer port 5 and the thermometer 7 can be used to facilitate the monitoring of the internal temperature of the device by the operator. A pressure gauge port 10 is provided on the outer wall of one of the end caps 16, and a pressure gauge 8 is installed inside the pressure gauge port 10. The pressure gauge port 10 and the pressure gauge 8 allow for convenient monitoring of the internal pressure of the device by the operator. The coil includes several first connecting pipes 11 and several second connecting pipes 12 passing through several baffles 14. The first connecting pipes 11 and second connecting pipes 12 are equidistantly distributed along the circumference of the support pipe 3. The first connecting pipes 11 are located inside the second connecting pipes 12, and the first connecting pipes 11 and second connecting pipes 12 are spaced apart. The end of one of the second connecting pipes 12 is connected to the inlet pipe 4, and the end of one of the first connecting pipes 11 adjacent to one of the second connecting pipes 12 is connected to the outlet pipe 6. The adjacent first connecting pipes 11 and... The end of the second connecting pipe 12 is connected via a connecting elbow 13. During use, an external circulating water cooling device supplies water to one of the second connecting pipes 12 via the inlet pipe 4, and the water continuously flows through the connecting elbow 13 into the first connecting pipe 11 and the second connecting pipe 12. Finally, the water is transported back to the circulating water cooling device from the first connecting pipe 11 adjacent to one of the second connecting pipes 12 via the outlet pipe 6 for cooling. This allows the water in the circulating water cooling device to circulate within the device, facilitating cooling of the internal components. The solid-state hydrogen storage component 17 can be a plate made of metal (such as magnesium, titanium, lanthanum, etc.) or alloy (such as LaNi5, Mg2Ni, FeTi, etc.).

[0024] Combined with appendix Figures 1-5The method of using this utility model is as follows: First, compressed hydrogen is introduced into the cylinder 1 and the end cap 16 through the loading pipe 2, and the hydrogen reacts reversibly with the solid hydrogen storage component 17 to generate metal hydrides, thereby achieving high-density safe storage of hydrogen. Heat is released during this chemical reaction. Then, the inlet pipe 4 and outlet pipe 6 are connected to an external circulating water cooling device, which supplies water to one of the second connecting pipes 12 through the inlet pipe 4, and the water continuously flows through the connecting elbow 13. The hydrogen enters into the first connecting pipe 11 and the second connecting pipe 12, and is finally transported back to the circulating water cooling device through the outlet pipe 6 from one of the first connecting pipes 11 adjacent to one of the second connecting pipes 12. This allows the water in the circulating water cooling device to circulate within the device, making it easier for staff to cool the inside of the device. The baffle plate can change the flow path of the hydrogen, guiding the gas to be evenly distributed in the container, so that the hydrogen can contact the solid hydrogen storage component 17 efficiently and evenly during the filling and discharging process, thereby improving the filling efficiency of the hydrogen storage container.

[0025] Of course, the above description is not limited to the examples above. Technical features of this utility model not described can be implemented by or using existing technology, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solution of this utility model and are not intended to limit this utility model. This utility model has been described in detail with reference to preferred embodiments. Those skilled in the art should understand that any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model do not depart from the spirit of this utility model and should also fall within the protection scope of the claims of this utility model.

Claims

1. A solid hydrogen storage container, characterized in that: The device includes a cylinder (1) and a head (16) welded and fixed to the opening of the cylinder. A baffle plate (14) fixed to the head is provided inside the cylinder. An inlet pipe (4), an outlet pipe (6) and a loading pipe (2) communicating with the cylinder are fixedly connected to the outer wall of one of the heads. A coil communicating with the inlet pipe and the outlet pipe is provided on the baffle plate. Solid hydrogen storage components (17) are provided on the inner walls of both the cylinder and the head.

2. The solid hydrogen storage container according to claim 1, characterized in that: A support tube (3) is provided on the outer side wall of one of the end caps, and a sleeve (15) is fixedly connected to the inner side wall of the other end cap. The baffle plate and the end cap are fixed by a support tube that passes through one of the end caps and the baffle plate and extends into the sleeve of the other end cap. A plug (9) is provided on the inner side wall of the support tube on the side of one of the end caps away from the cylinder.

3. The solid hydrogen storage container according to claim 1, characterized in that: Several baffles are provided inside the cylinder, and the baffles are equidistantly distributed along the length of the cylinder.

4. The solid hydrogen storage container according to claim 1, characterized in that: A thermometer port (5) is provided on the outer wall of one of the end caps, and a thermometer (7) is installed in the thermometer port.

5. The solid hydrogen storage container according to claim 4, characterized in that: A pressure gauge port (10) is provided on the outer wall of one of the end caps, and a pressure gauge (8) is provided inside the pressure gauge port.

6. The solid hydrogen storage container according to claim 4, characterized in that: The coil includes several first connecting pipes (11) and several second connecting pipes (12) passing through several baffles. The several first connecting pipes and several second connecting pipes are equidistantly distributed along the circumference of the support pipe. The several first connecting pipes are located inside the several second connecting pipes. The first connecting pipes and second connecting pipes are distributed at intervals. The end of one of the second connecting pipes is connected to the inlet pipe. The end of one of the first connecting pipes adjacent to one of the second connecting pipes is connected to the outlet pipe. The ends of adjacent first connecting pipes and second connecting pipes are connected by a connecting elbow (13).

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