Solid hydrogen storage pressure vessel

Abstract

The utility model provides a solid state hydrogen storage pressure vessel, the solid state hydrogen storage pressure vessel comprises a tank body, a material inlet and outlet assembly and a heat management assembly, the tank body comprises a first end wall, a second end wall and a side wall, the two ends of the side wall are respectively connected with the first end wall and the second end wall which are oppositely arranged, the tank body is arranged on the first end wall and surrounds the first end wall and the second end wall, a cavity is formed in the tank body, and a hydrogen storage material is contained in the cavity; the material inlet and outlet assembly is fixedly connected with the tank body in a sealed mode and communicates with the cavity. The heat management assembly penetrates through the first end wall and / or the second end wall and is connected with the first end wall and / or the second end wall in a sealed mode, at least part of the heat management assembly is contained in the cavity, and a heat exchange working medium is injected into the heat management assembly to adjust the temperature of the hydrogen storage material in the cavity. The technical problem of low hydrogen charging and discharging efficiency caused by rapid change of heat can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure vessels, in particular to a solid hydrogen storage pressure vessel. Background Art

[0002] Solid-state hydrogen storage uses metal hydrides, chemical hydrides or nanomaterials as hydrogen storage carriers to achieve hydrogen storage through chemical adsorption and physical adsorption. Compared with traditional hydrogen storage technology, solid-state hydrogen storage technology has attracted more and more attention due to its advantages such as higher volume hydrogen storage density than liquid hydrogen, ability to achieve room temperature and low pressure hydrogen storage, good operating safety, long-term stability, and high purity of hydrogen release. Therefore, solid-state hydrogen storage technology is expected to become one of the mainstream directions of hydrogen storage technology in the future.

[0003] Although solid-state hydrogen storage technology has attracted much attention due to the above advantages, the chemical reaction between the solid-state hydrogen storage alloy and hydrogen will produce heat changes during the storage and release of hydrogen, that is, the hydrogen charging process will quickly release heat, and the hydrogen release process will quickly absorb heat. This rapid change in heat will inhibit the hydrogen charging and release processes, seriously affecting the efficiency of the hydrogen charging and release processes, and will also affect the storage and release of hydrogen. Utility Model Content

[0004] In view of the above shortcomings of the prior art, the utility model provides a solid hydrogen storage pressure vessel to improve the technical problem of low efficiency of hydrogen filling and dehydration caused by rapid changes in heat.

[0005] To achieve the above-mentioned purpose and other related purposes, the utility model provides a solid-state hydrogen storage pressure vessel, which includes a tank body, a material inlet and outlet assembly and a thermal management assembly, the tank body includes a first end wall, a second end wall and a side wall, the two ends of the side wall are respectively connected to the first end wall and the second end wall which are arranged opposite to each other, and surround the first end wall and the second end wall, a cavity is formed in the tank body, and the cavity contains hydrogen storage material; the material inlet and outlet assembly is sealed and fixedly connected to the tank body and communicates with the cavity; the thermal management assembly passes through the first end wall and / or the second end wall, and is sealed and connected to the first end wall and / or the second end wall, the thermal management assembly is at least partially accommodated in the cavity, and the temperature of the hydrogen storage material in the cavity is adjusted by injecting a heat exchange medium into the thermal management assembly.

[0006] In an example of a solid-state hydrogen storage pressure vessel of the utility model, the thermal management component includes a heat exchange medium inlet pipe, a heat exchange medium outlet pipe and a heat exchange tube. The first end wall and / or the second end wall are provided with a heat exchange medium inlet port and a heat exchange medium outlet port. The heat exchange medium inlet pipe passes through the heat exchange medium inlet port and is sealed and fixed. The heat exchange medium outlet pipe passes through the heat exchange medium outlet port and is sealed and fixed. Both ends of the heat exchange tube are respectively connected to one end of the heat exchange medium inlet pipe located in the cavity and one end of the heat exchange medium outlet pipe located in the cavity. The heat exchange tube includes a combination of one or more of a straight tube, a bent tube, a spiral tube, a finned tube, a threaded tube and a wave tube.

[0007] In an example of a solid-state hydrogen storage pressure vessel of the present invention, the heat exchange medium inlet and the heat exchange medium outlet are arranged on one of the first end wall and the second end wall, and the heat exchange tube includes a first inlet tube and a first loop tube, the first inlet tube is connected to one end of the heat exchange medium inlet tube located in the cavity, and extends toward the second end wall and the other of the first end wall, the first loop tube is connected to one end of the heat exchange medium outlet tube located in the cavity, and extends toward the second end wall and the other of the first end wall, the first inlet tube and the first loop tube both extend to a position close to the second end wall and the other of the first end wall, and are connected and arranged.

[0008] In an example of a solid-state hydrogen storage pressure vessel of the utility model, the heat exchange medium inlet and the heat exchange medium outlet are arranged on one of the first end wall and the second end wall, and the heat exchange tube includes a second inlet tube, a third inlet tube, a second loop tube and a third loop tube, the second inlet tube and the third inlet tube are both connected to one end of the heat exchange medium inlet tube located in the cavity, and extend toward the second end wall and the other of the first end wall, the second loop tube and the third loop tube are both connected to one end of the heat exchange medium outlet tube located in the cavity, and extend toward the second end wall and the other of the first end wall, the second inlet tube, the third inlet tube, the second loop tube and the third loop tube are all extended to a position close to the other of the second end wall and the first end wall, at which position the second inlet tube is connected to the second loop tube, and the third inlet tube is connected to the third loop tube.

[0009] In an example of a solid-state hydrogen storage pressure vessel of the utility model, the solid-state hydrogen storage pressure vessel also includes a heat exchange tube support device, which includes a plurality of fixed frames, a plurality of connecting rods and a plurality of fasteners. The plurality of fixed frames are sleeved on the outside of the heat exchange tubes and are arranged at intervals along the direction in which the heat exchange tubes extend. The plurality of connecting rods are distributed side by side and in parallel along the circumference of the fixed frames and are fixedly connected to the inner side walls of the plurality of fixed frames. The heat exchange tubes are detachably connected to the connecting rods via a plurality of fasteners.

[0010] In an example of a solid-state hydrogen storage pressure vessel of the utility model, the solid-state hydrogen storage pressure vessel further comprises a plurality of temperature measuring components, the temperature measuring components comprising a temperature measuring probe, a display element, a conductive wire and a protective device, the protective device comprising a protective sleeve, a fixed sleeve and a connecting component, a plurality of temperature measuring ports are arranged on the tank body, the protective sleeve passes through the temperature measuring ports, the protective sleeve comprises a plugging end and an open end, the plugging end is located in the cavity, the fixed sleeve is sleeved on the outer periphery of the protective sleeve, and is sealed and fixedly connected to the temperature measuring port, the connecting component is connected to an end of the fixed sleeve located outside the solid-state hydrogen storage pressure vessel, the connecting component comprises a through hole coaxial with the protective sleeve, wherein the protective sleeve extends into or passes through the through hole, and is detachably sealed and connected to the connecting component, the temperature measuring probe is located in the protective sleeve, the display element is located outside the protective sleeve, the conductive wire connects the temperature measuring probe and the display element, and the conductive wire and the open end of the protective sleeve are sealed and fixed.

[0011] In an example of a solid-state hydrogen storage pressure vessel of the utility model, the solid-state hydrogen storage pressure vessel also includes a safety relief device, which includes a first filter, a first switch valve, a bursting disc, a first safety valve, a buffer tube, a reducer, a discharge pipe and a flame arrester. A safety relief port is provided on the tank body, the input end of the first filter is configured to be connected to the safety relief port, the input end of the first switch valve is connected to the output end of the first filter, the bursting disc is arranged on the output end side of the first switch valve, the first safety valve is arranged on the output end side of the bursting disc, the buffer tube is arranged between the first safety valve and the bursting disc, the reducer is arranged on the output end side of the first safety valve, the discharge pipe is arranged on the output end side of the reducer, and the flame arrester is connected to the output end of the discharge pipe.

[0012] In an example of a solid-state hydrogen storage pressure vessel of the utility model, the material inlet and outlet assembly includes a first flange, a second flange and a third flange arranged in sequence, the first end wall or the second end wall is provided with a material inlet and outlet, the first flange is sealed and fixedly connected to the material inlet and outlet, the first flange includes a first through hole connected to the cavity, the second flange includes a second through hole connected to the cavity, a filter is provided at one end of the second flange close to the first flange, the filter surrounds the second through hole, and extends into or passes through the first through hole, and the third flange includes a third through hole connected to the cavity.

[0013] In an example of the solid-state hydrogen storage pressure vessel of the utility model, the material inlet and outlet assembly also includes a gas inlet and outlet pipe, a second filter, a third switch valve, a second safety valve and a fourth switch valve, the gas inlet and outlet pipe is connected to the cavity, the second filter is arranged on the gas inlet and outlet pipe, the input end of the third switch valve is connected to the gas inlet and outlet pipe, the output end of the third switch valve is connected to the discharge pipe, the second safety valve is arranged behind the output end of the third switch valve, the output end of the second safety valve is connected to the discharge pipe, the fourth switch valve is arranged on the gas inlet and outlet pipe, and the fourth switch valve is arranged at an end of the second filter away from the solid-state hydrogen storage pressure vessel.

[0014] In an example of a solid-state hydrogen storage pressure vessel of the utility model, the solid-state hydrogen storage pressure vessel also includes at least one vessel support, the vessel support includes a base, a clamping ring and a connecting piece, the base and the clamping ring are arranged relative to each other, and form a space adapted to the outer wall of the solid-state hydrogen storage pressure vessel, the solid-state hydrogen storage pressure vessel is located in the space, and the base and the clamping ring are detachably connected via the connecting piece.

[0015] The solid-state hydrogen storage pressure vessel of the utility model is provided with a thermal management component to adjust the temperature of the hydrogen storage material in the cavity, so as to achieve temperature regulation of the hydrogen charging exothermic process and the hydrogen desorption heat absorption process, so that the hydrogen charging and desorption processes can be stably operated at a suitable temperature, so as to improve the efficiency of the hydrogen charging and desorption processes and increase the storage and release amount of hydrogen. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other embodiments can be obtained based on these drawings without paying creative work.

[0017] Figure 1This is a schematic structural diagram of an example of a solid-state hydrogen storage pressure vessel of the utility model;

[0018] Figure 2 It is a structural schematic diagram of a thermal management component and a heat exchange tube support device in an example of a solid-state hydrogen storage pressure vessel of the utility model;

[0019] Figure 3 This is a perspective view of a heat exchange tube support device in an example of a solid hydrogen storage pressure vessel of the utility model;

[0020] Figure 4 This is a schematic structural diagram of another example of the solid-state hydrogen storage pressure vessel of the utility model;

[0021] Figure 5 for Figure 4 A top view of

[0022] Figure 6 It is a structural schematic diagram of a thermal management component and a heat exchange tube support device in another example of the solid-state hydrogen storage pressure vessel of the utility model;

[0023] Figure 7 for Figure 6 A top view of

[0024] Figure 8 This is a perspective view of a heat exchange tube support device in another example of a solid hydrogen storage pressure vessel of the utility model;

[0025] Fig. 9 This is a structural schematic diagram of a fixed plate in another example of the solid-state hydrogen storage pressure vessel of the utility model;

[0026] Fig.10 This is a structural schematic diagram of a temperature measuring assembly in an example of a solid-state hydrogen storage pressure vessel of the utility model;

[0027] Fig.11 for Fig.10 A partial enlarged view of the middle A;

[0028] Fig.12 for Fig.10 A partial enlarged view of point B in the middle;

[0029] Fig.13 for Fig.11 A partial enlarged view of point C in the middle;

[0030] Fig.14 It is a structural schematic diagram of a safety release device in an example of a solid-state hydrogen storage pressure vessel of the utility model;

[0031] Fig.15 This is a structural schematic diagram of the material inlet and outlet components in an example of the solid-state hydrogen storage pressure vessel of the utility model.

[0032] Component number description

[0033] 100, tank body; 110, first end wall; 120, second end wall; 130, side wall; 140, cavity; 150, heat exchange medium inlet; 160, heat exchange medium outlet; 170, temperature measuring port; 180, safety discharge port; 181, discharge port connector; 190, material inlet and outlet; 200, material inlet and outlet assembly; 210, first flange; 211, first through hole; 220, second flange; 221, second through hole; 222, filter; 230, third flange; 231, third through hole; 240, gas inlet and outlet pipe; 250, second filter; 260, third switch valve; 270, second safety valve; 280, fourth switch valve; 300, thermal management component; 310, heat exchange medium inlet pipe; 320, heat exchange medium outlet pipe; 330, heat exchange tube; 331, first inlet pipe; 3311, first spiral tube body; 332, first loop pipe; 3321, second spiral tube body; 333, second inlet pipe; 3331, first wave tube body; 334, second loop pipe; 3341, third spiral tube body; 335, third inlet pipe; 3351, second wave tube body; 336, third loop pipe; 3361, fourth spiral tube body; 337, first elbow; 338, second elbow; 339, third elbow; 400, heat exchange tube support device; 410, first fixed frame; 420, first a connecting rod; 430, a first fastener; 440, a second fixed frame; 450, a second connecting rod; 460, a second fastener; 470, a fixing plate; 471, a first stepped surface; 472, a second stepped surface; 480, a slide rail; 500, a temperature measuring assembly; 510, a temperature measuring probe; 520, a display element; 530, a conducting wire; 540, a protective device; 541, a protective sleeve; 5411, an open end; 5412, a blocking end; 5413, a blocking plate; 542, a fixing sleeve; 5421, a first pipe section; 5422, a second pipe section; 543, a connecting assembly; 5431, a fixing member; 54311, a first conical surface; 5432, a sealing structure ; 54321, first cone sleeve; 543211, second cone surface; 54322, second cone sleeve; 5433, locking piece; 54331, threaded hole section; 54332, stop hole section; 54333, straight hole section; 54334, stop surface; 600, safety relief device; 601, first filter; 602, first switch valve; 603, bursting disc; 604, first safety valve; 605, buffer tube; 606, reducer; 607, discharge pipe; 608, flame arrester; 609, sterilizer; 610, first pressure gauge; 611, second switch valve; 700, container support; 710, base; 720, retaining ring; 730, connector. DETAILED DESCRIPTION

[0034] The following describes the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and the features in the embodiments can be combined with each other without conflict. It should also be understood that the terms used in the embodiments of the present invention are intended to describe specific implementation schemes, rather than to limit the scope of protection of the present invention. The test methods for which specific conditions are not specified in the following examples are usually carried out under conventional conditions or under the conditions recommended by the manufacturers.

[0035] When numerical ranges are given in the embodiments, it should be understood that unless otherwise specified in the present invention, both endpoints of each numerical range and any value between the two endpoints can be selected. Unless otherwise defined, all technical and scientific terms used in the present invention are in accordance with the prior art mastery of those skilled in the art and the description of the present invention, and any prior art methods, equipment and materials similar or equivalent to the methods, equipment and materials in the embodiments of the present invention can also be used to implement the present invention.

[0036] It should be noted that the terms such as "upper", "lower", "left", "right", "middle" and "one" cited in this specification are only for the convenience of description and are not used to limit the scope of implementation of the present utility model. Changes or adjustments to their relative relationships should be regarded as the scope of implementation of the present utility model without substantially changing the technical content.

[0037] See also Figures 1 to 15 The utility model provides a solid-state hydrogen storage pressure vessel, which includes a tank body 100, a material inlet and outlet assembly 200 and a thermal management assembly 300. By setting the thermal management assembly 300, the temperature of the hydrogen storage material in the cavity 140 can be adjusted to achieve temperature regulation of the hydrogen charging exothermic process and the hydrogen decompression endothermic process, so that the hydrogen charging and decompression processes can be stably operated at a suitable temperature, thereby improving the efficiency of the hydrogen charging and decompression processes and increasing the storage and release amount of hydrogen.

[0038] See also Figure 1 and Figures 4 to 5The tank body 100 includes a first end wall 110, a second end wall 120 and a side wall 130. The two ends of the side wall 130 are respectively connected to the first end wall 110 and the second end wall 120 which are arranged opposite to each other, and the tank body 100 is formed around the first end wall 110 and the second end wall 120. A cavity 140 is formed in the tank body 100. As long as a stable sealing relationship can be formed, the connection between the first end wall 110, the second end wall 120 and the side wall 130 can be achieved in a variety of ways. For example, the first end wall 110 and the side wall 130 can be stamped and then fixedly connected to the second end wall 120. Alternatively, the first end wall 110, the second end wall 120 and the side wall 130 can be firstly cut and processed separately, and then welded and fixed. The shape of the tank body 100 is not limited. The first end wall 110 and the second end wall 120 can be circular, hemispherical, elliptical, butterfly-shaped, rectangular or other irregular shapes. As long as the side wall 130 can surround the outer wall of the first end wall 110 and the second end wall 120 to form a sealed container, the size of the tank body 100 is not limited, and the size can be adaptively designed according to the demand for hydrogen storage capacity. In this embodiment, the first end wall 110 and the second end wall 120 are both concave partial spherical surfaces with a circular outer periphery, and the side wall 130 is a cylindrical shape formed around the first end wall 110 and the second end wall 120. The tank body 100 of this structure has good pressure bearing capacity, less stress concentration, low processing difficulty and economical cost.

[0039] It should be noted that the cylinder formed by the side wall 130 can adopt a seamless steel pipe structure with low processing cost, or a steel plate rolled structure with low material cost. There is no limitation on this. In this embodiment, a steel plate rolled structure is adopted, and further, a horizontal cutting and rolling process is adopted. This process can reduce the number of circumferential welds, reduce welding difficulty, improve welding efficiency, and save welding costs.

[0040] Furthermore, the cavity 140 contains a hydrogen storage material (not shown). Solid-state hydrogen storage is a method of storing hydrogen by physically adsorbing or chemically reacting hydrogen with solid materials. Common solid-state hydrogen storage materials include metal hydrides, carbon nanotubes, carbonaceous materials, coordinated hydrides, metal-organic framework materials (MOFs) and hydrogen hydrates.

[0041] See also Figure 1 and Figures 4 to 5, the material inlet and outlet assembly 200 is sealed and fixedly connected to the tank body 100, and is connected to the cavity 140; the material inlet and outlet assembly 200 is a channel for adding solid hydrogen storage materials into the solid hydrogen storage pressure vessel, and a channel for hydrogen to enter and exit. The material inlet and outlet assembly 200 can be divided into multiple inlets and outlets to realize the injection and discharge of solid hydrogen storage materials and hydrogen respectively, or a channel can be set to complete the injection and discharge of all materials, which is not limited. The structure and form of the material inlet and outlet assembly 200 are not limited, as long as it can achieve a sealed connection with the tank body 100 and no leakage occurs. The material inlet and outlet assembly 200 can be installed on the side wall 130 of the tank body 100 or on the first end wall 110 or the second end wall 120, as long as it can ensure that hydrogen can smoothly enter or leave the hydrogen storage material. In this embodiment, the material inlet and outlet assembly 200 is an inlet and outlet, and is set on the first end wall 110 or the second end wall 120. The material inlet and outlet assembly 200 has a simple and compact structure, and only one inlet and outlet is set, which reduces the difficulty of sealing and the risk of leakage.

[0042] See also Figure 1 to Figure 2 and Figures 4 to 7 The thermal management component 300 passes through the first end wall 110 and / or the second end wall 120 and is sealed with the first end wall 110 and / or the second end wall 120. The thermal management component 300 is at least partially accommodated in the cavity 140. The temperature of the hydrogen storage material in the cavity 140 is adjusted by injecting a heat exchange medium into the thermal management component 300. The heat exchange medium may be water, heat transfer oil, coolant or other heat exchange mediums with excellent performance. Specifically, the thermal management component 300 may have one end passing through the first end wall 110 and the other end passing through the second end wall 120, and the heat exchange medium flows in the direction from the first end wall 110 to the second end wall 120, or in the opposite direction; or the thermal management component 300 may only pass through one of the first end wall 110 and the second end wall 120, and the heat exchange medium enters from the first end wall 110 or the second end wall 120, flows in the cavity 140 for a circle, and then flows out from the first end wall 110 or the second end wall 120. Both of the above methods can achieve temperature regulation in the cavity 140 through heat exchange between the part of the thermal management component 300 located in the cavity 140 and the gas in the cavity 140, so as to adjust the temperature in the cavity 140, adjust the temperature of the hydrogen charging exothermic process and the hydrogen decompression endothermic process, so that the hydrogen charging and decompression processes can operate stably at a suitable temperature, improve the efficiency of the hydrogen charging and decompression processes, and increase the storage and release amount of hydrogen.

[0043] See also Figure 1 , Figures 4 to 5In one example of the solid-state hydrogen storage pressure vessel of the present utility model, the thermal management component 300 includes a heat exchange medium inlet pipe 310, a heat exchange medium outlet pipe 320 and a heat exchange tube 330, and the first end wall 110 and / or the second end wall 120 are provided with a heat exchange medium inlet pipe port 150 and a heat exchange medium outlet pipe port 160, that is, the heat exchange medium inlet pipe port 150 and the heat exchange medium outlet pipe port 160 are arranged on the same side, which can be on the first end wall 110 or on the second end wall 120, and there is no limitation on this, as long as the heat exchange medium inlet pipe 310 can pass through the heat exchange medium inlet pipe port 150 and be sealed and fixed, and the heat exchange medium outlet pipe 320 can pass through the heat exchange medium outlet pipe port 160 and be sealed and fixed, the two ends of the heat exchange tube 330 are respectively connected to the heat exchange medium. The inlet pipe is located at one end in the cavity 140 and the heat exchange medium outlet pipe 320 is located at one end in the cavity 140. The heat exchange medium enters from the heat exchange medium inlet pipe 310, completes heat exchange through the heat exchange pipe 330, and is discharged from the heat exchange medium outlet pipe 320. The heat exchange pipe 330 is located inside the cavity 140. The heat exchange medium completes the heat exchange with the inside of the cavity 140 during the flow in the heat exchange pipe 330. The shape and structure of the heat exchange pipe 330 are not limited. For example, the heat exchange pipe 330 includes a combination of one or more of a straight pipe, a curved pipe, a spiral pipe, a finned pipe, a threaded pipe and a wave pipe. The longer the path of the heat exchange pipe 330 in the cavity 140, the better the heat exchange effect. The shape and size of the heat exchange pipe 330 can be adaptively designed according to the size of the inside of the cavity 140.

[0044] See also Figure 1 to Figure 2 In one example of the solid hydrogen storage pressure vessel of the utility model, the heat exchange medium inlet pipe port 150 and the heat exchange medium outlet pipe port 160 are arranged on one of the first end wall 110 and the second end wall 120. Specifically, the heat exchange pipe 330 includes a first inlet pipe 331 and a first loop pipe 332. This arrangement can form a round trip path in the cavity 140, which is conducive to increasing the path length of the heat exchange pipe 330 extending in the cavity 140. The first inlet pipe 331 is connected to the heat exchange medium inlet pipe 310 located in the cavity 140. One end of the heat exchange medium outlet pipe 320 is connected to the second end wall 120 and extends toward the other of the first end wall 110. The first loop pipe 332 is connected to one end of the heat exchange medium outlet pipe 320 located in the cavity 140 and extends toward the other of the second end wall 120 and the first end wall 110. The first inlet pipe 331 and the first loop pipe 332 are both extended to a position close to the other of the second end wall 120 and the first end wall 110 and are connected. The above arrangement can further increase the length of the heat exchange pipe 330.

[0045] See also Figure 2Furthermore, the first inlet pipe 331 and the first loop pipe 332 can be a combination of one or more of a straight pipe, a bent pipe, a spiral pipe, a finned pipe, a threaded pipe and a wave pipe. In this embodiment, the portion where the first inlet pipe 331 is connected to the heat exchange medium inlet pipe 310 is a straight pipe, and the portion where the first loop pipe 332 is connected to the heat exchange medium outlet pipe 320 is a straight pipe. The first inlet pipe 331 and the first loop pipe 332 are connected via a bent pipe, and the rest of the first inlet pipe 331 and the first loop pipe 332 are spiral tube bodies. For the purpose of distinction, the spiral tube body on the first inlet pipe 331 is named the first spiral tube body 3311, and the spiral tube body on the second inlet pipe 333 is named the second spiral tube body 3321. This arrangement further increases the length of the heat exchange tube 330 and improves the heat exchange effect. The first spiral tube body 3311 and the second spiral tube body 3321 can be staggered and arranged at intervals, and can be concentric or unequal. The diameters of the first spiral tube body 3311 and the second spiral tube body 3321 can be equal or unequal, and can be adaptively designed according to the volume of the cavity 140. There is no limitation on this, as long as the first spiral tube body 3311 and the second spiral tube body 3321 do not interfere with each other. Preferably, the positional relationship between the first spiral tube body 3311 and the second spiral tube body 3321 is a combination of one or more of a parallel and co-directional double helix structure, a parallel but reverse double helix structure or a coaxial double helix structure. The first inlet pipe 331 and the first loop pipe 332 are connected by a first elbow 337. In this embodiment, the first spiral tube body 3311 and the second spiral tube body 3321 are parallel but reverse double helix structures, have equal outer diameters and are coaxial. This arrangement can achieve uniform heat exchange of the heat exchange tube 330 to obtain a more efficient heat exchange effect, and is also more beautiful and easy to process.

[0046] Considering that the thermal management component 300 generates a large bending moment under the action of its own weight, it is easy to cause fatigue damage to the connection port of the thermal management component 300, shortening the service life. In an example of the solid-state hydrogen storage pressure vessel of the utility model, please refer to Figure 2 and Figure 3The solid-state hydrogen storage pressure vessel also includes a heat exchange tube support device 400, which includes a plurality of fixed frames, a plurality of connecting rods and a plurality of fasteners. The plurality of fixed frames are sleeved on the outside of the heat exchange tube 330 and are arranged at intervals along the direction in which the heat exchange tube 330 extends. The plurality of connecting rods are distributed side by side and in parallel along the circumference of the fixed frames and are fixedly connected to the inner side walls 130 of the plurality of fixed frames. The heat exchange tube 330 is detachably connected to the connecting rods through a plurality of fasteners. The heat exchange tube support device 400 can support the heat exchange tube 330 to alleviate the technical problem that fatigue damage is prone to occur at the connection port of the thermal management component 300 and the solid hydrogen storage pressure vessel when the thermal management component 300 has a large weight. In addition, the heat exchange tube 330 and the heat exchange tube support device 400 are arranged to be detachably connected, so that when the heat exchange tube 330 expands and contracts, the heat exchange tube support device 400 will adaptively move with the axial movement of the heat exchange tube 330. On the one hand, it will not limit the deformation of the heat exchange tube 330. On the other hand, even if the heat exchange tube 330 is deformed, it can still achieve stable support for the heat exchange tube 330.

[0047] See also Figure 3In an example of the thermal management component 300 of the utility model, the heat exchange tube support device 400 includes a plurality of first fixed frames 410, a plurality of first connecting rods 420 and a plurality of first fasteners 430. The plurality of first fixed frames 410 are sleeved on the outside of the heat exchange tube 330 and are arranged at intervals along the direction in which the heat exchange tube 330 extends. The shape of the first fixed frames 410 is not limited and may be a circular ring, a square ring or other irregular shapes. There is no limitation on this. The number of first fixed frames 410 is not limited and may be 2, 4, 6, 8, 10, 12, 14 or more. Considering that the first spiral tube body 3311 and the second spiral tube body 3321 are spiral, in this embodiment, the first fixed frames 410 are circular ring-shaped and are provided with 12. This arrangement can provide stable support while leaving enough gaps to facilitate heat dissipation. Further, a plurality of first connecting rods 420 are arranged in parallel along the circumference of the first fixed frame 410, and are fixedly connected to the inner side walls of the plurality of first fixed frames 410. The shape and quantity of the first connecting rods 420 are not limited. For example, they can be profiles such as channel steel and angle steel, or they can be long strip-shaped structural members formed by bending steel plates, as long as they can connect the plurality of first fixed frames 410 and facilitate the installation and locking of the first fasteners 430. Preferably, in this embodiment, three first connecting rods 420 are provided and evenly distributed along the circumference of the first fixed frame 410. One of the first connecting rods 420 is provided at the outer side of the bottom of the heat exchange tube 330 to play a better supporting role for the heat exchange tube 330. The heat exchange tube 330 and the first connecting rod 420 are detachably connected through the first fasteners 430. The structure of the first fasteners 430 is not limited and can be any detachably connected structure. In this embodiment, U-bolts are used.

[0048] See also Figures 4 to 7In another example of the solid-state hydrogen storage pressure vessel of the utility model, the heat exchange medium inlet pipe port 150 and the heat exchange medium outlet pipe port 160 are arranged on one of the first end wall 110 and the second end wall 120, and the heat exchange pipe 330 includes a second inlet pipe 333, a third inlet pipe 335, a second loop pipe 334 and a third loop pipe 336. The heat exchange pipe 330 includes two sets of inlet pipes and loop pipes. This arrangement further increases the total length of the heat exchange pipe 330 and improves the heat exchange effect. Specifically, the second inlet pipe 333 and the third inlet pipe 335 are both connected to one end of the heat exchange medium inlet pipe 310 located in the cavity 140, and extend toward the direction of the other of the second end wall 120 and the first end wall 110. Specifically, the second inlet pipe 333 and the third inlet pipe 335 are connected to the second end wall 120 and the third end wall 110. The second loop pipe 334 and the third loop pipe 336 are both connected to one end of the heat exchange medium outlet pipe 320 located in the cavity 140, and extend toward the other of the second end wall 120 and the first end wall 110. Specifically, the second loop pipe 334 and the third loop pipe 336 are connected to the heat exchange medium outlet pipe 320 through the tee pipe, and the second inlet pipe 333, the third inlet pipe 335, the second loop pipe 334 and the third loop pipe 336 are all extended to a position close to the other of the second end wall 120 and the first end wall 110, at which position the second inlet pipe 333 is connected to the second loop pipe 334, and the third inlet pipe 335 is connected to the third loop pipe 336.

[0049] It should be noted that the shapes of the second inlet pipe 333, the third inlet pipe 335, the second loop pipe 334 and the third loop pipe 336 are not limited, and can include, for example, a combination of one or more of straight pipes, curved pipes, spiral pipes, corrugated pipes, finned pipes, and threaded pipes. The arrangement form is also not limited, and can be staggered or spaced, as long as there is no interference between the second inlet pipe 333, the third inlet pipe 335, the second loop pipe 334 and the third loop pipe 336. The materials of the second inlet pipe 333, the third inlet pipe 335, the second loop pipe 334 and the third loop pipe 336 are not limited, and can be, for example, a combination of one or more of carbon steel, stainless steel, non-ferrous metals or non-metals.

[0050] See also Figure 6 to Figure 7Further, the second inlet pipe 333 includes a first wave tube body 3331, and the third inlet pipe 335 includes a second wave tube body 3351. The arrangement of the first wave tube body 3331 and the second wave tube body 3351 can increase the length of the second inlet pipe 333 and the third inlet pipe 335, and further improve the heat exchange effect. The second loop pipe 334 includes a third spiral tube body 3341, and the third loop pipe 336 includes a fourth spiral tube body 3361. The arrangement of the third spiral tube body 3341 and the fourth spiral tube body 3361 further increases the path length and surface area of ​​the second loop pipe 334 and the third loop pipe 336. The first wave tube body 3331 and the second wave tube body 3351 are The tube bodies 3351 are arranged in parallel and side by side. The positional relationship between the third spiral tube body 3341 and the fourth spiral tube body 3361 is a combination of one or more of a parallel and co-directional double helix structure, a parallel but reverse double helix structure or a coaxial double helix structure. The third spiral tube body 3341 and the fourth spiral tube body 3361 can be concentric or unequal. The outer diameters of the third spiral tube body 3341 and the fourth spiral tube body 3361 can be equal or unequal. Adaptive design can be performed according to actual conditions. There is no limitation on this. The third spiral tube body 3341 and the fourth spiral tube body 3361 in this embodiment are parallel but reverse, non-coaxial and have the same outer diameter double helix. This arrangement can achieve uniformity of heat exchange of the heat exchange tube 330 to obtain a more efficient heat exchange effect, and is also more beautiful and easy to process. The third spiral tube body 3341 and the fourth spiral tube body 3361 surround the outside of the first wave tube body 3331 and the second wave tube body 3351, and the second inlet pipe 333 and the third inlet pipe 335 are arranged in the central part, so that the heat exchange medium can flow through the central area of ​​the heat exchange tube 330 where the hydrogen storage material temperature is the highest when the performance is optimal, so as to achieve the balance of the heat exchange efficiency of the entire heat exchange tube 330. The second inlet pipe 333 and the second loop pipe 334 are connected through the second bend pipe 338, and the third inlet pipe 335 and the third loop pipe 336 are connected through the third bend pipe 339.

[0051] See also Figures 6 to 8In an example of the thermal management component 300 of the utility model, the heat exchange tube support device 400 includes a plurality of second fixed frames 440, a plurality of second connecting rods 450 and a plurality of second fasteners 460. The plurality of second fixed frames 440 are sleeved on the outside of the heat exchange tube 330 and are arranged at intervals along the extension direction of the heat exchange tube 330. The shape of the second fixed frames 440 is not limited, and can be a circular ring, a square ring or other irregular shapes, and there is no limitation on this. The number of second fixed frames 440 is not limited, and can be 2, 4, 6, 8, 10, 12, 14 or more. Considering that the third spiral tube body 3341 and the fourth spiral tube body 3361 are spiral, in this embodiment, the second fixed frames 440 are circular rings and are provided with 12. This arrangement can provide stable support while leaving enough gaps to facilitate heat dissipation. Furthermore, a plurality of second connecting rods 450 are distributed in parallel along the circumference of the second fixing frame 440 , and are fixedly connected to the inner side walls 130 of the plurality of second fixing frames 440 . The shape and quantity of the second connecting rods 450 are not limited.

[0052] Preferably, in this embodiment, four second connecting rods 450 are provided and distributed along the circumference of the second fixed frame 440. The structure of the second connecting rod 450 is not limited, and it can be a profile such as a channel steel, an angle steel, or a long strip-shaped structural member formed by bending a steel plate. There is no limitation on this, as long as it can realize connecting multiple second fixed frames 440 and facilitate the installation and locking of the second fasteners 460. Further, two second connecting rods 450 are arranged on both sides of the bottom of the heat exchange tube 330, and the other two second connecting rods 450 are symmetrically arranged on both sides of the top of the heat exchange tube 330. Preferably, the center angle of the two second connecting rods 450 arranged on both sides of the bottom of the heat exchange tube 330 is less than or equal to the center angle of the two second connecting rods 450 arranged on both sides of the top of the heat exchange tube 330. This arrangement is conducive to the stability of the heat exchange tube support device 400. The heat exchange tube 330 is connected to the second connecting rod 450 through multiple second fasteners 460. The rod 450 is detachably connected, and the structure of the second fastener 460 is not limited and can be any detachably connected structure. In this embodiment, U-bolts are used, and the heat exchange tube 330 and the heat exchange tube support device 400 are set to be detachably connected. When the heat exchange tube 330 expands or contracts due to heat or cold, the heat exchange tube support device 400 will adaptively move with the axial movement of the heat exchange tube 330. On the one hand, it will not limit the deformation of the heat exchange tube 330. On the other hand, even if the heat exchange tube 330 is deformed, stable support for the heat exchange tube 330 can still be achieved.

[0053] Considering that the second inlet pipe 333 and the third inlet pipe 335 are located near the center of the heat exchange pipe 330 and have different radial heights, in an example of the thermal management assembly 300 of the present invention, please refer to 6 to Figure 8 The heat exchange tube supporting device 400 also includes a plurality of fixing plates 470, and the plurality of fixing plates 470 are spaced apart along the length direction of the connecting rod. One end of the fixing plate 470 is fixedly connected to the second connecting rod 450, and the end of the fixing plate 470 away from the second connecting rod 450 includes a first step surface 471 and a second step surface 472 of different heights. The second inlet pipe 333 is supported on the first step surface 471 and is detachably connected to the fixing plate 470. The third inlet pipe 335 is supported on the second step surface 472 and is detachably connected to the fixing plate 470. By setting a fixing plate 470, the second inlet pipe 333 and the third inlet pipe 335 are fixed separately, the fixing is stable and reliable, and the assembly process is simple and easy to operate. The second loop pipe 334 and the third loop pipe 336 are both detachably connected to the second connecting rod 450 via a plurality of second fasteners 460. The heat exchange tube 330 and the heat exchange tube support device 400 are detachably connected, so that when the heat exchange tube 330 expands or contracts due to heat, the heat exchange tube support device 400 will adaptively move along with the axial movement of the heat exchange tube 330. On the one hand, it will not limit the deformation of the heat exchange tube 330. On the other hand, even if the heat exchange tube 330 is deformed, it can still achieve stable support for the heat exchange tube 330.

[0054] See also Figure 3 , Figure 6 and Figure 8In an example of a container of the utility model, at least one slide rail 480 parallel to the axis of the tank body 100 is provided on the inner side of the side wall 130. The shape and number of the slide rail 480 are not limited and may be a plate, round steel or other profiles. The number of the slide rails 480 may be 1, 2, 3 or more, as long as the sliding connection between the slide rail 480 and the heat exchange tube support device 400 can be achieved. Considering the cost and heat exchange efficiency issues, in this embodiment, the slide rail 480 is made of round steel, and the axis of the round steel is parallel to the axis of the tank body 100. There are 2 slide rails 480, and the 2 slide rails 480 are respectively Located on both sides of the lowermost part of the side wall 130, preferably, the central angle between the two slide rails 480 is less than or equal to 40°. The setting of the slide rail 480 can, on the one hand, provide a better supporting effect on the heat exchange tube support device 400. On the other hand, since the slide rail 480 and the heat exchange tube support device 400 are in line contact, the friction force of the heat exchange tube support device 400 on the container wall during the installation of the thermal management component 300 is reduced, as well as the friction force of the heat exchange tube support device 400 on the container wall when the heat exchange tube 330 expands and contracts and drives the heat exchange tube support device 400 to move, which saves manpower and reduces the probability of wear between the container wall and the heat exchange tube support device 400.

[0055] See also Fig.10 In an example of a solid-state hydrogen storage pressure vessel of the utility model, the solid-state hydrogen storage pressure vessel also includes a plurality of temperature measuring components 500 for detecting the temperature at different depths of the hydrogen storage material, the temperature measuring components 500 include a temperature measuring probe 510, a display element 520, a conductive wire 530 and a protective device 540, the protective device 540 includes a protective sleeve 541, a fixed sleeve 542 and a connecting component 543, the temperature measuring probe 510 is located in the protective sleeve 541, the display element 520 is located outside the protective sleeve 541, the conductive wire 530 connects the temperature measuring probe 510 and the display element 520, the conductive wire 530 and the open end 5411 of the protective sleeve 541 are sealed and fixed, and the protective device 540 is used to protect the two temperature measuring elements, the temperature measuring probe 510 and the conductive wire 530. In this embodiment, by providing a connecting component 543 and arranging the protective sleeve 541 and the connecting component 543 as a detachable sealed connection, on the one hand, it replaces the original process of sealing between the protective sleeve 541 and the fixed sleeve 542 by welding, thereby reducing the process difficulty and the processing cost. On the other hand, the detachable connection method is adopted, which facilitates the maintenance and replacement of wearing parts such as the protective sleeve 541, thereby reducing the maintenance difficulty and maintenance cost.

[0056] Specifically, see Figure 1 , Figure 4 and Figures 10 to 13The tank body 100 is provided with a plurality of temperature measuring ports 170, which can be provided on the first end wall 110, the second end wall 120 or the side wall 130, and there is no limitation on this. In this embodiment, there are 8 temperature measuring ports 170, which are all provided on the side wall 130 and are evenly arranged, and the temperature is measured at a plurality of temperature measuring points to obtain a more accurate temperature measurement result. The protective sleeve 541 passes through the temperature measuring port 170, and the protective sleeve 541 includes a blocking end 5412 and an open end 5411. The blocking end 5412 is located in the cavity 140, and the temperature measuring probe 510 is located in the protective sleeve 541, so as to realize the sealing of the temperature measuring element located inside the cavity 140, and isolate the temperature measuring element from the material to be measured, so as to realize the protection of the temperature measuring element, avoid the direct sealing between the temperature measuring element and the tank body 100, and improve the reliability of the sealing.

[0057] See also Figure 1 and Figure 4 The fixed sleeve 542 is sleeved on the outer periphery of the protective sleeve 541 and is sealed and fixedly connected to the temperature measuring port 170. In order to improve the temperature measuring accuracy of the temperature measuring element, the wall thickness of the protective sleeve 541 is as thin as possible, but too thin will affect the strength of the protective sleeve 541. In the present technical solution, the protective sleeve 541 is indirectly installed on the temperature measuring port 170 through the fixed sleeve 542, which can reduce the requirements on the strength of the protective sleeve 541 itself, so that it can obtain a thinner wall thickness while also having a stronger fixing strength and sealing performance. The shape, material and sealed fixed connection form of the fixed sleeve 542 with the temperature measuring port 170 are not limited, for example, it can be threaded connection, riveting, bonding or welding. In this embodiment, welding connection is used for fixing, which is firm and reliable and has a good sealing function.

[0058] For further information, see Fig.10In order to prevent the material in the solid hydrogen storage pressure vessel from leaking from the gap between the protective sleeve 541 and the fixed sleeve 542, it is necessary to seal the protective sleeve 541 and the fixed sleeve 542, and connect the connecting component 543 to one end of the fixed sleeve 542 located outside the solid hydrogen storage pressure vessel, and the connecting component 543 includes a through hole coaxial with the protective sleeve 541, wherein the protective sleeve 541 extends into or passes through the through hole and is detachably sealed and connected to the connecting component 543, and the protective sleeve 541 is sealed at the connecting component 543 to reduce the leakage of the material from the protective sleeve 541. In order to reduce the risk of leakage in the gap between the protective sleeve 541 and the fixed sleeve 542, the original method of welding and sealing the protective sleeve 541 and the fixed sleeve 542 is changed. Since the wall thickness difference between the protective sleeve 541 and the fixed sleeve 542 is large, the welding difficulty is high and welding quality problems are prone to occur. This setting can reduce the process difficulty, reduce the processing cost, and improve the product yield. On the other hand, a detachable connection method is adopted, which is convenient for the maintenance and replacement of wearing parts such as the protective sleeve 541, reducing the maintenance difficulty and maintenance cost. At the same time, since the protective sleeve 541 does not need to be welded, a thinner wall thickness can be used, further improving the accuracy of temperature measurement.

[0059] It should be noted that the connection method of the connection component 543 and the fixed sleeve 542 is not limited, and can be threaded connection, clamping connection or welding connection, etc., as long as the connection component 543 and the fixed sleeve 542 can be reliably and stably sealed. In this embodiment, the connection component 543 and the fixed sleeve 542 are welded, which is stable and reliable and has a good sealing effect. The form and structure of the connection component 543 are not limited here, for example, it can be any pipe joint with sealing performance, as long as it can achieve sealing and detachable installation with the protective sleeve 541.

[0060] See also Fig.10 and Fig.11Further, the connecting assembly 543 includes a fixing member 5431, a sealing structure 5432 and a locking member 5433. The fixing member 5431 is fixedly connected to one end of the fixing sleeve 542 located outside the solid hydrogen storage pressure vessel. The sealing structure 5432 is sleeved on the outer periphery of the protective sleeve 541. The locking member 5433 is detachably connected to the fixing member 5431. The detachable connection method is not limited and can be a threaded connection or a clamping connection. The sealing structure 5432 is arranged between the fixing member 5431 and the locking member 5433. The sealing structure 5432 is configured to be able to achieve a sealed and fixed connection with the protective sleeve 541 when the locking member 5433 and the fixing member 5431 are locked. The form of the sealing mechanism is not limited. , which can be a conical surface fit, a sealing ring seal, or a clamping protective sleeve 541 and partially embedded in the outer wall of the protective sleeve 541 to achieve sealing, etc. The sealing structure 5432 is used to replace the original method of welding and sealing the protective sleeve 541 and the fixed sleeve 542. Since the wall thickness difference between the protective sleeve 541 and the fixed sleeve 542 is large, the welding difficulty is high, and welding quality problems are prone to occur. This setting can reduce the process difficulty, reduce the processing cost, and improve the product yield. On the other hand, a detachable connection method is adopted, which is convenient for the maintenance and replacement of wearing parts such as the protective sleeve 541, reducing the maintenance difficulty and maintenance cost. At the same time, this technical solution simplifies the overall structure of the protection device 540 of the temperature measuring element, achieves a simple and compact structure, and reduces the number of accessories.

[0061] See also Fig.10 and Fig.13 In an example of the protection device 540, the sealing structure 5432 includes a first cone sleeve 54321 and a second cone sleeve 54322 which are sequentially sleeved on the outside of the protection sleeve 541, the first cone sleeve 54321 is located between the second cone sleeve 54322 and the fixing member 5431, and the end of the first cone sleeve 54321 with a smaller diameter faces the fixing member 5431, the fixing member 5431 includes a first cone surface 54311 which matches with the outer cone surface of the first cone sleeve 54321, the smaller end of the second cone sleeve 54322 faces the end of the first cone sleeve 54321 with a larger diameter, and the inner hole of the first cone sleeve 54321 close to one end of the second cone sleeve 54322 includes a second cone surface 543211 which matches with the outer cone surface of the second cone sleeve 54322.

[0062] See also Fig.11 and Fig.13In an example of the protection device 540, the locking member 5433 includes a stepped hole coaxial with the protection sleeve 541. Along the direction away from the solid hydrogen storage pressure vessel, the stepped hole includes a threaded hole section 54331, a stop hole section 54332 and a straight hole section 54333 arranged in sequence. The threaded hole cooperates with the external thread arranged on the fixing member 5431. The protection sleeve 541 passes through the straight hole section 54333. The diameter of the stop hole section 54332 is smaller than the minor diameter of the threaded hole section 54331 and larger than the diameter of the straight hole section 54333, so as to form a stop surface 54334 for stopping the end face of the larger diameter of the second cone sleeve 54322.

[0063] Specifically, see Fig.11 and Fig.13 , the first cone surface 54311 of the fixing member 5431 cooperates with the outer cone surface of the first cone sleeve 54321, and the second cone surface 543211 of the first cone sleeve 54321 cooperates with the outer cone surface of the second cone sleeve 54322. During the locking process of the fixing member 5431 and the locking member 5433, the locking member 5433 pushes the second cone sleeve 54322 to move, thereby pushing the first cone sleeve 54321 to move. During the movement of the first cone sleeve 54321, the first cone surface 54311 and the outer cone surface of the first cone sleeve 54321 move relatively. During the movement, the first cone sleeve 54321 is subjected to radial pressure, which causes the small end of the first cone sleeve 54321 to be pressed against the outer periphery of the protective sleeve 541. Due to the protective sleeve 541 The wall thickness is relatively thin, and plastic deformation occurs under the action of the first cone sleeve 54321, and a seal is achieved with the matching surface of the first cone sleeve 54321. At the same time, based on the same principle, the large end face of the second cone sleeve 54322 is subjected to radial pressure from the first cone sleeve 54321 under the stopping action of the stop surface 54334, so that the small end of the second cone sleeve 54322 is also sealed with the protective sleeve 541. The double sealing mechanism improves the sealing performance between the protective sleeve 541 and the connecting component 543. It should be noted that when the protective sleeve 541 is damaged and needs to be replaced, the locking piece 5433 and the fixing piece 5431 can be removed and then locked in the same way, which simplifies the maintenance and replacement process and is simple and easy to operate.

[0064] See also Fig.10 and Fig.11Considering that the connection between the fixed sleeve 542 and the side wall 130 of the solid hydrogen storage pressure vessel requires strong rigidity, and the portion where the fixed sleeve 542 is welded to the fixing member 5431 is preferably selected to be equal to the outer diameter of the fixing member 5431, in an example of the protection device 540, the fixed sleeve 542 includes a first pipe section 5421 and a second pipe section 5422 connected, the first pipe section 5421 is welded and fixed to the side wall 130, and the second pipe section 5422 is welded and fixed to the fixing member 5431 at one end away from the first pipe section 5421, and the outer diameter of the second pipe section 5422 is equal to the outer diameter of the fixing member 5431, thereby improving the welding stability between the fixed sleeve 542 and the fixing member 5431. It should be noted that the first pipe section 5421 and the second pipe section 5422 can be separately set and fixedly connected; the first pipe section 5421 and the second pipe section 5422 can also be integrally processed and formed. There is no limitation on the inner diameters of the first pipe segment 5421 and the second pipe segment 5422 , and they may be equal or different; there is no limitation on the outer diameters of the first pipe segment 5421 and the second pipe segment 5422 , and they may be equal or different.

[0065] See also Fig.10 and Fig.11 In an example of the protective device 540, the outer diameter of the first pipe segment 5421 is greater than the outer diameter of the second pipe segment 5422. Furthermore, in this embodiment, the first pipe segment 5421 and the second pipe segment 5422 are integrally formed and have the same inner diameters. This arrangement can not only improve the strength of the connection portion with the side wall 130, but also take into account the welding stability between the fixed sleeve 542 and the fixing member 5431.

[0066] Since the protective sleeve 541 does not need to be welded, a thinner wall thickness can be used to further improve the temperature measurement accuracy. In an example of the protective device 540 of the temperature measuring element of the present invention, please refer to Fig.12 The wall thickness of the protective sleeve 541 is 0.72 mm to 2 mm. The protective sleeve 541 within this range has better strength and enables the temperature measuring element to have higher temperature measuring accuracy.

[0067] See also Fig.10 and Fig.12 In an example of the protection device 540, the sealing end 5412 of the protection sleeve 541 is sealed by sealing welding or welding the plugging plate 5413. The above two sealing methods mainly depend on the diameter of the protection sleeve 541. When the diameter is large, the method of welding the plugging plate 5413 will be more reliable and stable. When the diameter is small, the sealing welding method is simpler and more reliable.

[0068] See also Figure 4 and Fig.14In an example of the solid-state hydrogen storage pressure vessel of the utility model, the solid-state hydrogen storage pressure vessel also includes a safety discharge device 600, and the safety discharge device 600 includes a first filter 601, a first switch valve 602, a bursting disc 603, a first safety valve 604, a buffer tube 605, a reducer 606, a discharge pipe 607 and a flame arrester 608. The tank body 100 is provided with a safety discharge port 180, and the safety discharge port 180 can be set at any position of the tank body 100, without limitation. In this embodiment, the safety discharge port 180 is arranged above the side wall 130, and the input end of the first filter 601 is configured to communicate with the safety discharge port 180. Preferably, the safety discharge port 180 is fixedly connected with a discharge port connector 181, and the first filter 60 The input end of the first filter 601 is connected to the discharge port connector 181. The discharge port connector 181 can be in various forms, which are not limited to this. In this embodiment, the discharge port connector 181 includes a reinforcing pipe, an elbow, a connecting pipe and a connecting flange connected in sequence. The reinforcing pipe is fixedly connected to the safety discharge port 180. The input end of the first filter 601 is connected to the connecting flange. The first filter 601 filters and isolates solid materials such as dust and particles that come out of the safety discharge port 180 to prevent solid materials from entering the safety discharge device 600, reduce the adverse effects of dust and particles on the opening and closing of the first switch valve 602, the first safety valve 604, etc., reduce the problem of poor sealing of the first switch valve 602, the first safety valve 604, etc., and improve the safety and durability of the safety discharge device 600. Further, the first filter 601 is a precision filter that can filter solid materials such as dust and particles. The first filter 601 is disposed at the input end of the safety discharge device 600 , which can not only ensure the safety of discharge, but also improve the durability of the safety discharge device 600 .

[0069] See also Fig.14 , the input end of the first switch valve 602 is connected to the output end of the first filter 601. By arranging the first switch valve 602 at the rear end of the first filter 601, the opening and closing of the safety relief device 600 can be controlled, and at the same time, the powder, particles, etc. in the pressure vessel can be prevented from reaching the first switch valve 602 and affecting the use of the first switch valve 602. The first switch valve 602 can be a ball valve, a stop valve, a solenoid valve, etc., preferably a ball valve, which is convenient, stable and durable. In other embodiments of the present application, the first switch valve 602 can be other switch valves.

[0070] See also Fig.14The bursting disc 603 is arranged at the output end side of the first switch valve 602. The bursting disc 603 can meet the need for safe discharge in the scenario of rapid pressure growth, thereby ensuring the need for safe discharge in the scenario of rapid pressure growth. Further, the bursting disc 603 uses an inverted arched bursting disc 603. The convex surface of the inverted arched bursting disc 603 is on the high-pressure side of the pressure system. When it is in motion, it turns over, ruptures or falls off due to compression instability, meeting the need for discharge in the case of rapid pressure growth.

[0071] See also Fig.14 , the first safety valve 604 is arranged at the output end side of the bursting disc 603, and the first safety valve 604 is used in conjunction with the bursting disc 603 to meet the needs of safe discharge of toxic and explosive media in situations where pressure increases rapidly. For example, the discharge needs of pressure vessels storing flammable and explosive gases such as hydrogen. Exemplarily, the specifications of the first safety valve 604 are selected and calculated based on the working conditions of the pressure vessel and the safe discharge volume of the pressure vessel, and the discharge capacity of the first safety valve 604 is checked. Furthermore, the first safety valve 604 is installed vertically.

[0072] See also Fig.14 The buffer tube 605 is disposed between the first safety valve 604 and the bursting disc 603. The buffer tube 605 can buffer the gas released by the bursting disc 603, thereby reducing the impact on the first safety valve 604. In an embodiment of a safety relief device 600, the buffer tube 605 is a straight tube, directly connecting the first safety valve 604 and the bursting disc 603.

[0073] See also Fig.14 The reducer 606 is arranged on the output end side of the first safety valve 604. The reducer 606 is arranged on the output end side of the first safety valve 604. The pipe diameters of the input end and the output end are adjusted by the reducer 606. By using the reducer 606 to adjust the flow rate and pressure, stable and safe discharge is guaranteed.

[0074] See also Fig.14 , the discharge pipe 607 is arranged on the output end side of the reducer 606, and the gas is discharged to a place far away from the pressure vessel or a designated place through the discharge pipe 607. The flame arrester 608 is connected to the output end of the discharge pipe 607, so as to prevent the problem of flashback of the flammable and explosive gas during deflagration and prevent the flame from entering the safety discharge device 600. Furthermore, the flame arrester 608 is mainly composed of a shell and a filter element. The shell has sufficient strength to withstand the impact pressure generated by the explosion. The filter element is the main component to prevent the spread of flames. Exemplarily, the filter element can be a metal mesh filter element or a corrugated filter element.

[0075] See also Fig.14In an example of the safety discharge device 600 of the present application, the safety discharge device 600 includes a sterilizer 609, which is disposed between the discharge pipe 607 and the flame arrester 608. Exemplarily, the required medium is placed in the sterilizer 609 according to actual needs, and the toxic substances in the gas are harmlessly treated before being discharged into the atmosphere.

[0076] See also Fig.14 In an example of the safety relief device 600 of the present application, the safety relief device 600 also includes a first pressure gauge 610, and the first pressure gauge 610 is arranged at the buffer tube 605. By setting the first pressure gauge 610, the pressure at the buffer tube 605 can be monitored, thereby facilitating the monitoring of the pressure inside the safety relief device 600.

[0077] See also Fig.14 In an example of the safety relief device 600 of the present application, the safety relief device 600 further includes a second switch valve 611, the input end of the second switch valve 611 is connected to the buffer tube 605, and the output end of the second switch valve 611 is connected to the discharge pipe 607. By setting the second switch valve 611, when the pressure in the buffer tube 605 is too high instantly, that is, the pressure at the input end of the first safety valve 604 is too high, it can be discharged through the branch where the second switch valve 611 is located, and the branch where the second switch valve 611 is located is connected in parallel with the first safety valve 604, thereby alleviating the instantaneous high pressure generated by the explosion of the bursting disc 603 faced by the first safety valve 604. Exemplarily, the second switch valve 611 can be a ball valve, a stop valve, or a solenoid valve. Preferably, the second switch valve 611 is a solenoid valve, and the second switch valve 611 is opened and closed according to the monitoring pressure of the first pressure gauge 610.

[0078] See also Fig.14 , the safety relief device 600 of the present application relies on the first filter 601 to first isolate the powder material below the first switch valve 602, and the filtered clean gas is not easy to cause pollution to the sealing surface of the first switch valve 602. After being discharged through the bursting disc 603, the clean gas enters the buffer tube 605, and when it is discharged through the first safety valve 604, the filtered clean gas will not cause powder pollution to the sealing surface of the first safety valve 604. When the pressure in the container is reduced to the return pressure of the first safety valve 604, the first safety valve 604 can be smoothly returned to the seat, and the effective sealing of the first safety valve 604 is realized again, so as to keep the pressure in the container stable and operate safely. It solves the problem that a single safety relief device 600 cannot adapt to mixed materials; avoids the problem of loose sealing caused by the particles or powder contained contaminating the valve sealing surface; solves the problem of safe discharge of flammable and explosive media or toxic and hazardous media; and realizes the safe and stable operation of the pressure vessel and its safety relief device 600.

[0079] See also Fig.14 In this embodiment, by setting the first filter 601, the solid matter such as dust and particles in the mixed material is filtered, so as to ensure that the sealing surfaces of the first switch valve 602, the first safety valve 604 and other valves are clean, and the sealing performance of the safety relief device 600 is ensured. The safe release of the mixed material is achieved; the loose sealing caused by the particles or powder contained in the valve sealing surface is avoided; by setting the bursting disc 603, the need for release under the condition of rapid pressure growth can be met. The buffer tube 605 is set between the bursting disc 603 and the first safety valve 604, which can play a certain role in pressure relief when the bursting disc 603 ruptures, relieve the impact on the first safety valve 604; ensure the safe discharge of flammable and explosive media; and achieve safe and stable operation of the pressure vessel and its safety relief device 600.

[0080] See also Figures 4 to 5 and Fig.15 In an example of the solid-state hydrogen storage pressure vessel of the utility model, the material inlet and outlet assembly 200 includes a first flange 210, a second flange 220 and a third flange 230 arranged in sequence, the first end wall 110 or the second end wall 120 is provided with a material inlet and outlet 190, which is arranged on the first end wall 110 or the second end wall 120 to facilitate the smooth entry or exit of hydrogen, the first flange 210 is sealed and fixedly connected to the material inlet and outlet 190, the first flange 210 includes a first through hole 211 communicating with the cavity 140, the first through hole 211 is used for adding a passage for hydrogen storage material, after the hydrogen storage material is added, the second flange 220 is installed, and the second flange 220 includes a second through hole 211 communicating with the cavity 140 Hole 221, a filter 222 is provided at one end of the second flange 220 close to the first flange 210, the filter 222 surrounds the second through hole 221, and extends into or passes through the first through hole 211, the hydrogen enters through the second through hole 221, the filter 222, and the first through hole 211, and the hydrogen is discharged through the first through hole 211, the filter 222 and the second through hole 221. This setting can achieve filtering of hydrogen in two directions, the third flange 230 includes a third through hole 231 connected to the cavity 140, and the third flange 230 is used for an external gas inlet and outlet pipe 240. The material inlet and outlet assembly 200 of this setting has a simple and compact structure, and only one inlet and outlet is set, which reduces the difficulty of sealing and the risk of leakage.

[0081] See also Figure 4 and Fig.14In an example of the solid-state hydrogen storage pressure vessel of the utility model, the material inlet and outlet assembly 200 also includes a gas inlet and outlet pipe 240, a second filter 250, a third switch valve 260, a second safety valve 270 and a fourth switch valve 280. The gas inlet and outlet pipe 240 is connected to the cavity 140. Specifically, the gas inlet and outlet pipe 240 is connected to the third flange 230 and to the third through hole 231 to realize the injection of gas into the chamber or the output of gas from the chamber.

[0082] See also Fig.14 The second filter 250 is arranged on the gas inlet and outlet pipe 240. When the pressure vessel outputs gas to the outside through the gas inlet and outlet, the second filter 250 filters the powder, particles, etc. in the pressure vessel to reduce the contamination of the pipeline by solid particles such as powder mixed in the gas.

[0083] See also Fig.14 The input end of the third switch valve 260 is connected to the gas inlet and outlet pipe 240, and the output end of the third switch valve 260 is connected to the discharge pipe 607. Further, the output end of the third switch valve 260 is connected to the second safety valve 270, and the output end of the second safety valve 270 is connected to the discharge pipe 607. The second safety valve 270 is connected in parallel with the first safety valve 604, which further improves the safety discharge requirements of the pressure vessel in special circumstances and improves the safety of discharge. Exemplarily, the third switch valve 260 is arranged on the side of the second filter 250 away from the main body, so that the second filter 250 can filter the gas entering the third switch valve 260.

[0084] See also Fig.14 The fourth switch valve 280 is arranged on the gas inlet and outlet pipe 240, and the fourth switch valve 280 is arranged at the end of the second filter 250 away from the solid hydrogen storage pressure vessel. The opening and closing of the gas inlet and outlet are controlled by the fourth switch valve 280. The fourth switch valve 280 is arranged at the end of the filter 222 away from the main body, which can reduce the powder, particles, etc. in the chamber from entering the sealing surface of the fourth switch valve 280, and ensure the sealing performance of the fourth switch valve 280.

[0085] See also Figures 4 to 5In an example of the solid-state hydrogen storage pressure vessel of the utility model, the solid-state hydrogen storage pressure vessel also includes at least one vessel support 700. Preferably, two vessel supports 700 are provided in this embodiment, which are respectively located near the two ends of the solid-state hydrogen storage pressure vessel, and are used to install the solid-state hydrogen storage pressure vessel to meet the special working requirements of the fatigue load of the vessel, and provide the possibility for modular integration and assembly. Specifically, the vessel support 700 includes a base 710, a clamping ring 720 and a connecting piece 730. The base 710 and the clamping ring 720 are arranged relative to each other, and form a space adapted to the outer wall of the solid-state hydrogen storage pressure vessel. The solid-state hydrogen storage pressure vessel is located in the space, and the base 710 and the clamping ring 720 are detachably connected through the connecting piece 730. The vessel support 700 of this structure has the advantage of being easy to disassemble and install, and has good adaptability, and can be matched with solid-state hydrogen storage pressure vessels of various sizes.

[0086] The solid-state hydrogen storage pressure vessel of the utility model is provided with a thermal management component to adjust the temperature of the hydrogen storage material in the cavity, so as to achieve temperature regulation of the hydrogen charging exothermic process and the hydrogen desorption endothermic process, so that the hydrogen charging and desorption process can be stably operated at a suitable temperature, which has the beneficial effects of improving the efficiency of the hydrogen charging and desorption processes, and increasing the storage and release amount of hydrogen. Therefore, the utility model effectively overcomes some practical problems in the prior art and has a high utilization value and use significance. The above embodiments are only illustrative of the principles and effects of the utility model, and are not used to limit the utility model. Anyone familiar with this technology can modify or change the above embodiments without violating the spirit and scope of the utility model. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the relevant technical field without departing from the spirit and technical ideas disclosed by the utility model should still be covered by the claims of the utility model.

Claims

1. A solid hydrogen storage pressure vessel, characterized in that: include: The tank body comprises a first end wall, a second end wall and a side wall, wherein two ends of the side wall are respectively connected to the first end wall and the second end wall which are arranged opposite to each other and surround the first end wall and the second end wall, and a cavity is formed in the tank body, and the cavity contains a hydrogen storage material; A material inlet and outlet assembly is sealed and fixedly connected to the tank body and communicated with the cavity; A thermal management component penetrates the first end wall and / or the second end wall and is sealed to the first end wall and / or the second end wall. The thermal management component is at least partially accommodated in the cavity. The temperature of the hydrogen storage material in the cavity is regulated by injecting a heat exchange medium into the thermal management component.

2. The solid-state hydrogen storage pressure vessel according to claim 1, characterized in that: The thermal management component includes a heat exchange medium inlet pipe, a heat exchange medium outlet pipe and a heat exchange tube. The first end wall and / or the second end wall are provided with a heat exchange medium inlet pipe port and a heat exchange medium outlet pipe port. The heat exchange medium inlet pipe passes through the heat exchange medium inlet pipe port and is sealed and fixed. The heat exchange medium outlet pipe passes through the heat exchange medium outlet pipe port and is sealed and fixed. The two ends of the heat exchange tube are respectively connected to one end of the heat exchange medium inlet pipe located in the cavity and one end of the heat exchange medium outlet pipe located in the cavity. The heat exchange tube includes a combination of one or more of a straight tube, a bent tube, a spiral tube, a finned tube, a threaded tube and a wave tube.

3. The solid-state hydrogen storage pressure vessel according to claim 2, characterized in that: The heat exchange medium inlet and the heat exchange medium outlet are arranged on one of the first end wall and the second end wall, and the heat exchange pipe includes a first inlet pipe and a first loop pipe. The first inlet pipe is connected to one end of the heat exchange medium inlet pipe located in the cavity and extends toward the second end wall and the other of the first end wall. The first loop pipe is connected to one end of the heat exchange medium outlet pipe located in the cavity and extends toward the second end wall and the other of the first end wall. The first inlet pipe and the first loop pipe both extend to a position close to the second end wall and the other of the first end wall and are connected.

4. The solid-state hydrogen storage pressure vessel according to claim 2, characterized in that: The heat exchange medium inlet and the heat exchange medium outlet are arranged on one of the first end wall and the second end wall, and the heat exchange pipe includes a second inlet pipe, a third inlet pipe, a second loop pipe and a third loop pipe. The second inlet pipe and the third inlet pipe are both connected to one end of the heat exchange medium inlet pipe located in the cavity and extend toward the second end wall and the other of the first end wall. The second loop pipe and the third loop pipe are both connected to one end of the heat exchange medium outlet pipe located in the cavity and extend toward the second end wall and the other of the first end wall. The second inlet pipe, the third inlet pipe, the second loop pipe and the third loop pipe are all extended to a position close to the other of the second end wall and the first end wall, at which position the second inlet pipe is connected to the second loop pipe, and the third inlet pipe is connected to the third loop pipe.

5. The solid-state hydrogen storage pressure vessel according to claim 2, characterized in that: It also includes a heat exchange tube support device, which includes a plurality of fixed frames, a plurality of connecting rods and a plurality of fasteners. The plurality of fixed frames are sleeved on the outside of the heat exchange tubes and are arranged at intervals along the direction in which the heat exchange tubes extend. The plurality of connecting rods are distributed side by side and in parallel along the circumference of the fixed frames and are fixedly connected to the inner side walls of the plurality of fixed frames. The heat exchange tubes are detachably connected to the connecting rods via a plurality of fasteners.

6. The solid-state hydrogen storage pressure container according to claim 1, characterized in that: It also includes multiple temperature measuring components, which include a temperature measuring probe, a display element, a conductive wire and a protective device. The protective device includes a protective sleeve, a fixed sleeve and a connecting component. The tank body is provided with multiple temperature measuring ports. The protective sleeve passes through the temperature measuring ports. The protective sleeve includes a blocked end and an open end. The blocked end is located in the cavity. The fixed sleeve is sleeved on the outer periphery of the protective sleeve and is sealed and fixedly connected to the temperature measuring port. The connecting component is connected to one end of the fixed sleeve located outside the solid hydrogen storage pressure vessel. The connecting component includes a through hole coaxial with the protective sleeve, wherein the protective sleeve extends into or passes through the through hole and is detachably sealed and connected to the connecting component. The temperature measuring probe is located in the protective sleeve, and the display element is located outside the protective sleeve. The conductive wire connects the temperature measuring probe and the display element, and the conductive wire and the open end of the protective sleeve are sealed and fixed.

7. The solid-state hydrogen storage pressure vessel according to claim 1, characterized in that: It also includes a safety relief device, which includes a first filter, a first switch valve, a bursting disc, a first safety valve, a buffer tube, a reducer, a discharge pipe and a flame arrester. A safety relief port is provided on the tank body, and the input end of the first filter is configured to be connected to the safety relief port. The input end of the first switch valve is connected to the output end of the first filter. The bursting disc is arranged on the output end side of the first switch valve, the first safety valve is arranged on the output end side of the bursting disc, the buffer tube is arranged between the first safety valve and the bursting disc, the reducer is arranged on the output end side of the first safety valve, the discharge pipe is arranged on the output end side of the reducer, and the flame arrester is connected to the output end of the discharge pipe.

8. The solid-state hydrogen storage pressure vessel according to claim 1, characterized in that: The material inlet and outlet assembly includes a first flange, a second flange and a third flange which are arranged in sequence; the first end wall or the second end wall is provided with a material inlet and outlet; the first flange is sealed and fixedly connected to the material inlet and outlet; the first flange includes a first through hole communicating with the cavity; the second flange includes a second through hole communicating with the cavity; a filter is provided at one end of the second flange close to the first flange; the filter surrounds the second through hole and extends into or passes through the first through hole; the third flange includes a third through hole communicating with the cavity.

9. The solid-state hydrogen storage pressure container according to claim 8, characterized in that: The material import and export assembly also includes a gas inlet and outlet pipe, a second filter, a third switch valve, a second safety valve and a fourth switch valve. The gas inlet and outlet pipe is connected to the cavity. The second filter is arranged on the gas inlet and outlet pipe. The input end of the third switch valve is connected to the gas inlet and outlet pipe, and the output end of the third switch valve is connected to the exhaust pipe. The second safety valve is arranged behind the output end of the third switch valve, and the output end of the second safety valve is connected to the exhaust pipe. The fourth switch valve is arranged on the gas inlet and outlet pipe, and the fourth switch valve is arranged at an end of the second filter away from the solid-state hydrogen storage pressure vessel.

10. The solid-state hydrogen storage pressure vessel according to claim 1, characterized in that: It also includes at least one container support, which includes a base, a clamping ring and a connecting piece. The base and the clamping ring are arranged opposite to each other and form a space that is adapted to the outer wall of the solid-state hydrogen storage pressure vessel. The solid-state hydrogen storage pressure vessel is located in the space, and the base and the clamping ring are detachably connected via the connecting piece.

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