Hydrogen storage and release control system and mobile hydrogen storage equipment

Abstract

The hydrogen storage and release control system comprises a hydrogen storage and release reactor, a first driving assembly and a control assembly, the hydrogen storage and release reactor comprises a heat exchange shell pass and a heat exchange tube pass, one of the heat exchange shell pass and the heat exchange tube pass is used for storing a solid hydrogen storage medium, and the other of the heat exchange shell pass and the heat exchange tube pass is used for storing a solid hydrogen storage medium; one of the heat exchange shell side and the heat exchange tube side is arranged to be a heat storage medium capable of producing heat, the other one is arranged to be a heat storage medium capable of producing heat, at least one of the heat exchange shell side and the heat exchange tube side is arranged to be rotatable, the first driving assembly is used for driving at least one of the heat exchange shell side and the heat exchange tube side, and the control assembly comprises a controller and a first temperature sensor used for detecting the temperature of the heat storage medium. The controller is configured to control the first driving assembly to be started under the condition that the heat storage medium generates heat and is heated to the preset rotation temperature, so that when the heat storage medium triggers heat generation, the solid hydrogen storage medium can be uniformly heated by controlling rotation of at least one of the heat exchange shell pass and the heat exchange tube pass, and the hydrogen storage efficiency is improved. And the purpose of increasing the hydrogen desorption rate is achieved.

Description

Technical Field

[0001] This invention belongs to the field of hydrogen storage technology, and particularly relates to a hydrogen storage and release control system and a mobile hydrogen storage device. Background Technology

[0002] Hydrogen energy, as a clean and efficient energy source, holds significant strategic importance in addressing the global energy crisis and environmental pollution. Developing efficient and safe hydrogen storage technologies is crucial for cost reduction and large-scale application. Hydrogen storage is generally categorized into gaseous, liquid, and solid-state storage, with solid-state storage being the most actively researched technology due to its safety and efficiency advantages.

[0003] To facilitate hydrogen release, existing hydrogen storage devices contain not only solid hydrogen storage materials but also heating media for releasing heat sources, such as heating plates or heating films. However, due to the limited availability of heating media, solid hydrogen storage materials are prone to uneven heating, which affects the hydrogen release reaction rate. Summary of the Invention

[0004] In view of the above-mentioned defects or deficiencies, the present invention provides a hydrogen storage and release control system and a mobile hydrogen storage device, which aims to solve the technical problem that solid hydrogen storage materials in existing hydrogen storage devices are prone to uneven heating.

[0005] To achieve the above objectives, a first aspect of the present invention provides a hydrogen storage and release control system, wherein the hydrogen storage and release control system includes a hydrogen storage and release reactor, a first drive assembly, and a control assembly; the hydrogen storage and release reactor includes a heat exchange shell side and a heat exchange tube side disposed within the heat exchange shell side, one of the heat exchange shell side and the heat exchange tube side is configured to store a solid hydrogen storage medium, and the other is configured to have a heat-generating heat storage medium, and at least one of the heat exchange shell side and the heat exchange tube side is rotatably configured; the first drive assembly is used to drive at least one of the heat exchange shell side and the heat exchange tube side; the control assembly includes a controller and a first temperature sensor for detecting the temperature of the heat storage medium, the controller being signal-connected to the first temperature sensor and the first drive assembly respectively, and configured to: When the heat storage medium generates heat and rises to the preset rotation temperature, the first drive component is controlled to start.

[0006] In one embodiment of the present invention, the heat storage medium is a chemical heat storage medium. One of the heat exchange shell side and the heat exchange tube side storing the chemical heat storage medium is provided with a water vapor inlet for water vapor to enter and exit, and the other side storing the solid hydrogen storage medium is provided with a hydrogen inlet for hydrogen to enter and exit.

[0007] In one embodiment of the present invention, the heat exchange shell side is configured to store a chemical heat storage medium, the heat exchange tube side is configured to store a solid hydrogen storage medium, and the heat exchange tube side includes at least two heat exchange tubes, which are arranged in parallel and spaced apart in the heat exchange shell side and each has a hydrogen inlet at one end.

[0008] In one embodiment of the present invention, at least two heat exchange tubes are single straight tubes, and at least two heat exchange tubes are closed at one end and the other end is a hydrogen inlet.

[0009] In one embodiment of the present invention, at least two heat exchange tubes each include a first straight tube and a second straight tube arranged in parallel, and a bent tube connecting the first straight tube and the second straight tube at the same end, wherein the ends of the first straight tube and the second straight tube away from the bent tube are both provided as hydrogen inlets.

[0010] In one embodiment of the present invention, all hydrogen inlets are equipped with filters.

[0011] In one embodiment of the present invention, a steam pipe is provided on the heat exchange shell side, and a steam inlet is provided at one end of the steam pipe extending out of the heat exchange shell side. The portion of the steam pipe extending into the heat exchange shell side is provided with a plurality of inlet and outlet holes spaced apart.

[0012] In one embodiment of the present invention, the heat exchange tube side further includes a tube bundle support plate placed in the heat exchange shell side. The tube bundle support plate can be used for at least two heat exchange tubes. The number of tube bundle support plates is at least two, and the at least two tube bundle support plates are arranged at intervals along the length direction of the heat exchange shell side.

[0013] In one embodiment of the present invention, the heat exchange shell is rotatably disposed and an inclined agitator is provided on the inner wall. Multiple agitator plates are arranged sequentially at intervals along the circumference of the heat exchange shell to form a ring of agitator plates. The number of rings of the agitator plates is multiple, and the multiple rings of agitator plates are arranged sequentially at intervals along the length of the heat exchange shell.

[0014] In one embodiment of the present invention, the heat exchange tube side further includes a hydrogen storage chamber shell located outside the heat exchange shell side. The hydrogen storage chamber shell forms a hydrogen chamber. At least two heat exchange tubes have hydrogen inlets at one end that are connected to the hydrogen chamber. The side of the hydrogen storage chamber shell opposite to the heat exchange tubes has a hydrogen inlet and outlet, and a flow control valve is provided on the hydrogen inlet and outlet.

[0015] In one embodiment of the present invention, the solid hydrogen storage medium is a metal hydride that can reversibly absorb and release hydrogen, and the chemical thermal storage medium is a metal hydroxide that can reversibly dehydrate and hydrate.

[0016] In one embodiment of the present invention, the solid hydrogen storage medium is a magnesium-based hydrogen storage material, and the chemical thermal storage medium is magnesium hydroxide that can be reversibly dehydrated and hydrated.

[0017] In one embodiment of the present invention, the control component further includes a first pressure sensor for detecting the pressure within the hydrogen chamber and a second temperature sensor for detecting the solid hydrogen storage medium. The controller is connected to the first pressure sensor, the second temperature sensor, and the flow control valve, and is further configured to: When the hydrogen chamber is filled with hydrogen to a preset rotation pressure, the first drive component is started. When the solid hydrogen storage medium is heated to the preset adjustment temperature, the flow control valve is adjusted to reduce the pressure in the hydrogen chamber to the preset adjustment pressure.

[0018] In one embodiment of the present invention, the hydrogen storage chamber shell has a second connecting seat body fitted onto the heat exchange shell side, and a dynamic sealing element is provided between the second connecting seat body and the heat exchange shell side.

[0019] In one embodiment of the present invention, at least two heat exchange tubes are single straight tubes, and the hydrogen inlet and outlet are located in the middle of the hydrogen storage chamber shell.

[0020] In one embodiment of the present invention, at least two heat exchange tubes each include a first straight tube and a second straight tube arranged in parallel, and a bent tube connecting the first straight tube and the second straight tube at the same end. A partition plate is provided in the hydrogen chamber to divide the hydrogen chamber into a first gas storage chamber and a second gas storage chamber. All the first straight tubes are connected to the first gas storage chamber, and all the second straight tubes are connected to the second gas storage chamber. There are two hydrogen inlets and outlets, which are respectively set as a hydrogen inlet and a hydrogen outlet. The hydrogen inlet is set to correspond to the first gas storage chamber, and the hydrogen outlet is set to correspond to the second gas storage chamber.

[0021] In one embodiment of the present invention, the heat exchange shell side includes a shell side body, a first connecting seat, and a sealing cover plate. The shell side body has openings at both ends. The heat exchange tube side is covered by the second connecting seat at the first end of the shell side body. The heat exchange tube side, which is used to store the corresponding medium, can extend into the shell side body from the opening at the first end of the shell side body. A dynamic seal is provided between the shell side body and the second connecting seat. The first connecting seat is fitted on the outer peripheral side of the second end of the shell side body. A dynamic seal is provided between the shell side body and the first connecting seat. The sealing cover plate is covered at the second end of the shell side body and connected to the first connecting seat. A water vapor inlet is provided on the sealing cover plate.

[0022] In one embodiment of the present invention, the first end of the heat exchange shell is open, and the heat exchange tube is covered by the second connecting seat at the first end of the heat exchange shell. The heat exchange tube for storing the corresponding medium can extend into the heat exchange shell from the first end opening of the heat exchange shell. A dynamic sealing element is provided between the heat exchange shell and the second connecting seat. The second end of the heat exchange shell is closed and provided with a first rotary joint. The rotating end of the first rotary joint is connected to the heat exchange shell, and the fixed end is arranged outward and has a water vapor inlet.

[0023] In one embodiment of the present invention, the heat exchange tube side is fixedly arranged, and the first driving component drives the heat exchange shell side to rotate.

[0024] In one embodiment of the present invention, both the heat exchange shell side and the heat exchange tube side are rotatably configured. A second rotary joint is provided on the hydrogen storage chamber shell located outside the heat exchange shell side in the heat exchange tube side. The rotating end of the second rotary joint is connected to the hydrogen storage chamber shell, and the fixed end is arranged outward and has a hydrogen inlet and outlet. The hydrogen storage and release control system also includes a second driving component. The first driving component and the second driving component drive the rotating end of the heat exchange shell side and the second rotary joint to rotate in a one-to-one correspondence.

[0025] To achieve the above objectives, a second aspect of the present invention provides a mobile hydrogen storage device, wherein the mobile hydrogen storage device includes a mobile walking device and a hydrogen storage and release control system according to the above description, the hydrogen storage and release control system being disposed on the mobile walking device.

[0026] Through the above technical solution, the hydrogen storage and release control system provided by the present invention has the following beneficial effects: When the above-mentioned hydrogen storage and release control system is used, since it includes a hydrogen storage and release reactor, a first drive component, and a control component, the heat exchange tube side of the hydrogen storage and release reactor is placed inside the heat exchange shell side. One of the heat exchange shell side and the heat exchange tube side is configured to store a solid hydrogen storage medium, and the other side is configured to have a heat-generating heat storage medium. At least one of the heat exchange shell side and the heat exchange tube side is configured to be rotatable. The controller in the control component can control the first drive component to drive at least one of the heat exchange shell side and the heat exchange tube side. Thus, when the heat storage medium triggers heat generation, by controlling the rotation of at least one of the heat exchange shell side and the heat exchange tube side, the solid hydrogen storage medium can be uniformly heated, thereby increasing the hydrogen release rate.

[0027] Other features and advantages of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0028] The accompanying drawings are provided to further illustrate embodiments of the present invention and form part of the specification. They are used together with the following detailed description to explain the embodiments of the present invention, but do not constitute a limitation thereof. Those skilled in the art can obtain other drawings based on the structures shown in these drawings without any inventive effort. In the drawings: Figure 1 This is a schematic diagram of the hydrogen storage and release reactor according to the first embodiment of the present invention; Figure 2 This is a partial structural schematic diagram of the hydrogen storage and release reactor according to the first embodiment of the present invention; Figure 3 This is a schematic diagram of the hydrogen storage and release reactor according to the second embodiment of the present invention; Figure 4 This is a partial structural schematic diagram of the hydrogen storage and release reactor according to the second embodiment of the present invention; Figure 5 This is a schematic diagram of the hydrogen storage and release reactor according to the third embodiment of the present invention; Figure 6 This is a partial structural schematic diagram of the hydrogen storage reactor according to the third embodiment of the present invention.

[0029] Explanation of reference numerals in the attached figures: 100. Heat exchange shell side; 101. Steam inlet; 102. Steam inlet tube; 103. First rotary joint; 110. Shell side body; 120. Sealing cover plate; 130. Stirring plate; 140. First connecting seat; 200. Heat exchange tube side; 201. Hydrogen inlet; 210. Heat exchange tube body; 211. First straight tube body; 212. Second straight tube body; 213. Bent tube body; 214. Plug; 220. Tube bundle support plate; 230. Hydrogen storage chamber shell; 231. Hydrogen chamber; 232. Hydrogen inlet and outlet; 233. Hydrogen inlet; 234. Hydrogen outlet; 235. Second connecting seat; 236. Divider plate; 237. First gas storage chamber; 238. Second gas storage chamber; 239. Second rotary joint; 300. First drive assembly. Detailed Implementation

[0030] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0031] The hydrogen storage and release control system and mobile hydrogen storage device of the present invention are described below with reference to the accompanying drawings.

[0032] like Figures 1 to 6 As shown, the present invention provides a hydrogen storage and release control system, wherein the hydrogen storage and release control system includes: A hydrogen storage reactor includes a heat exchange shell side 100 and a heat exchange tube side 200 disposed within the heat exchange shell side 100. One of the heat exchange shell side 100 and the heat exchange tube side 200 is configured to store a solid hydrogen storage medium, and the other is configured to have a heat-generating storage medium. At least one of the heat exchange shell side 100 and the heat exchange tube side 200 is configured to be rotatable. A first drive assembly is used to drive at least one of the heat exchanger shell side 100 and the heat exchanger tube side 200; The control component includes a controller and a first temperature sensor for detecting the temperature of the heat storage medium. The controller is signal-connected to both the first temperature sensor and the first drive component 300, and is configured to: When the heat storage medium generates heat and rises to the preset rotation temperature, the first drive component 300 is started.

[0033] When using the aforementioned hydrogen storage and release control system, which includes a hydrogen storage and release reactor, a first drive assembly 300, and a control assembly, the hydrogen storage and release reactor includes a heat exchange shell side 100 and a heat exchange tube side 200 placed within the heat exchange shell side 100. One of the heat exchange shell side 100 and the heat exchange tube side 200 is configured to store a solid hydrogen storage medium, and the other is configured to have a heat-generating heat storage medium. At least one of the heat exchange shell side 100 and the heat exchange tube side 200 is rotatable. The controller in the control assembly can control the first drive assembly 300 to drive at least one of the heat exchange shell side 100 and the heat exchange tube side 200. This allows the solid hydrogen storage medium to be uniformly heated by controlling the rotation of at least one of the heat exchange shell side 100 and the heat exchange tube side 200 when the heat storage medium triggers heat generation, thereby increasing the hydrogen release rate. Simultaneously, the first drive assembly 300 is activated only when the heat storage medium reaches a preset rotation temperature to achieve efficient heat transfer.

[0034] Specifically, the solid hydrogen storage medium can be a magnesium-based hydrogen storage material. The hydrogen release reaction expression for the magnesium-based hydrogen storage material can be: MgH2 → Mg + H2 (endothermic reaction); the hydrogen storage reaction expression can be: Mg + H2 → MgH2 (exothermic reaction). During the hydrogen release reaction, the heat storage medium triggers heat generation, and when the temperature rises to the preset rotation temperature, the first drive component 300 is activated. Specifically, when only the heat exchange shell side 100 rotates, the first drive component 300 can drive the heat exchange shell side 100 to rotate at a speed controlled between 5 r / min and 10 r / min to heat and release hydrogen from the solid hydrogen storage medium. Furthermore, the preset rotation temperature is preferably between 300℃ and 350℃. The first temperature sensor includes, but is not limited to, a thermocouple temperature sensor. The solid hydrogen storage medium can also be other reversible hydrogen absorption and release metal hydrides, such as titanium-based hydrogen storage alloys, vanadium-based alloys, etc.

[0035] In one embodiment of the present invention, the heat storage medium is a chemical heat storage medium. One of the heat exchange shell side 100 and the heat exchange tube side 200 storing the chemical heat storage medium is provided with a steam inlet 101 for water vapor to enter and exit, and the other side storing the solid hydrogen storage medium is provided with a hydrogen inlet 201 for hydrogen to enter and exit. By using a chemical heat storage medium, the large amount of heat released by the solid hydrogen storage medium during the hydrogen storage reaction is not wasted; it can be stored using chemical heat storage technology and released during the hydrogen release reaction. Compared to using an electrically heated heat storage medium, this significantly reduces energy consumption. Specifically, the chemical heat storage medium can be metal hydroxides, salt hydrates, carbonates, and ammonia, etc. Metal hydroxides can utilize reversible dehydration / hydration reactions, such as magnesium hydroxide and calcium hydroxide. Salt hydrates can utilize reversible dehydration / hydration reactions, such as sulfate hydrates and chloride hydrates. Carbonates can utilize reversible decomposition / synthesis reactions, such as calcium carbonate. Ammonia can utilize reversible decomposition / synthesis reactions. Among the above chemical heat storage media, metal hydroxides are preferred, especially magnesium hydroxide. On the one hand, this makes the reaction easier to achieve and has less impact on the environment. On the other hand, it makes the reaction temperature of the chemical heat storage medium more compatible with the reaction temperature of the solid hydrogen storage medium. The exothermic reaction expression for magnesium hydroxide as the chemical heat storage medium is: MgO + H2O(g) → Mg(OH)2, and the endothermic reaction expression is: Mg(OH)2 → MgO + H2O(g). That is, when a hydrogen release reaction is required, water vapor, specifically water vapor at 250°C, can be added to the chemical heat storage medium to trigger the chemical heat storage medium to release heat, thereby triggering the hydrogen storage medium to release hydrogen. Of course, the present invention is not limited to this; in addition to chemical heat storage media, the heat storage medium can also be electrically heated heating elements, heating films, or heating liquids, etc.

[0036] Furthermore, the solid hydrogen storage medium can be a powder, tablet, or a columnar structure that matches the heat exchange tube 210, while the chemical thermal storage medium can be a spherical or other aggregated structure. Both the solid hydrogen storage medium and the chemical thermal storage medium are single-fill and recycled, and neither the solid hydrogen storage medium nor the chemical thermal storage medium requires unloading or reloading during the entire hydrogen storage and release process. When a hydrogen release reaction is required, superheated steam can be introduced into the chemical heat storage medium through the steam inlet 101. The steam reacts with the chemical heat storage medium to release heat. At least one of the heat exchange shell side 100 and the heat exchange tube side 200 is rotatably configured to ensure that the solid hydrogen storage medium is uniformly heated and releases hydrogen through the hydrogen inlet 201. When a hydrogen storage reaction is required, hydrogen can be introduced into the solid hydrogen storage medium through the hydrogen inlet 201 to carry out a hydrogen storage reaction. During the hydrogen storage reaction, heat is released. At least one of the heat exchange shell side 100 and the heat exchange tube side 200 is rotatably configured to ensure that the chemical heat storage medium is uniformly heated and decomposes to release water vapor. The water vapor is discharged through the steam inlet 101. In this process, the solid hydrogen storage medium achieves hydrogen storage, and the chemical heat storage medium achieves heat storage.

[0037] Furthermore, during the hydrogen release reaction, superheated steam at 250°C and 1.0 MPa can be introduced through steam inlet 101. When the chemical thermal storage medium undergoes an exothermic reaction and its temperature rises to the preset rotation temperature, the first drive component 300 is activated to ensure that the solid hydrogen storage medium is uniformly heated and undergoes the hydrogen release reaction. Additionally, if the temperature of the chemical thermal storage medium exceeds the preset rotation temperature, the introduction of superheated steam can be interrupted.

[0038] In one embodiment of the present invention, the heat exchange shell side 100 is configured to store a chemical thermal storage medium, and the heat exchange tube side 200 is configured to store a solid hydrogen storage medium. That is, the chemical thermal storage medium is located outside the solid hydrogen storage medium, allowing for the loading of a larger volume of chemical thermal storage medium. Specifically, to ensure the hydrogen release rate, the volume of the chemical thermal storage medium loaded in the heat exchange shell side 100 can be set to be 1.5 times larger than the volume of the solid hydrogen storage medium loaded in the heat exchange tube side 200, preferably 1.5 to 2 times the volume of the solid hydrogen storage medium loaded in the heat exchange tube side 200. Furthermore, the chemical thermal storage medium in the heat exchange shell side 100 can be in an unpacked state, allowing for agitation of the chemical thermal storage medium within the heat exchange shell side 100 when it is rotatable, thus preventing sintering due to localized overheating during the exothermic reaction of the chemical thermal storage medium. Furthermore, the heat exchange tube side 200 includes at least two heat exchange tube bodies 210, which are arranged in parallel and spaced apart within the heat exchange shell side 100, and each has a hydrogen inlet 201 at one end. By configuring the heat exchange tube side 200 storing the solid hydrogen storage medium to include at least two heat exchange tube bodies 210, the heat exchange area between the solid hydrogen storage medium and the chemical heat storage medium can be increased, thereby further improving the hydrogen release rate and heat storage rate.

[0039] Of course, the present invention is not limited thereto. The heat exchange shell side 100 can also be configured to store a solid hydrogen storage medium, and correspondingly, the heat exchange tube side 200 can also be configured to store a chemical heat storage medium. However, in order to increase the heat exchange area, the heat exchange tube side 200 is preferably configured to include at least two heat exchange tubes 210, and the volume of the chemical heat storage medium is preferably larger than the volume of the solid hydrogen storage medium filled in the heat exchange tube side 200. In order to reduce the filling of the heat exchange tubes 210, it is preferable that the heat exchange shell side 100 is configured to store a chemical heat storage medium and the heat exchange tube side 200 is configured to store a solid hydrogen storage medium.

[0040] In the first and third embodiments of the present invention, at least two heat exchange tubes 210 are single straight tubes, and one end of each heat exchange tube 210 is closed, while the other end is a hydrogen inlet 201. Designating the heat exchange tubes 210 as single straight tubes facilitates medium filling. Specifically, the first end of each of the at least two heat exchange tubes 210 can be closed by a plug 214. When the plug 214 is removed, medium can be filled from both ends of the heat exchange tube 210. The second end of each of the at least two heat exchange tubes 210 is a hydrogen inlet 201, meaning that the hydrogen inlets 201 of all heat exchange tubes 210 are located at the same end, facilitating hydrogen collection and supply.

[0041] In the second embodiment of the present invention, at least two heat exchange tubes 210 each include a first straight tube 211 and a second straight tube 212 arranged in parallel, and a bent tube 213 connecting the first straight tube 211 and the second straight tube 212 at the same end. The end of the first straight tube 211 and the second straight tube 212 away from the bent tube 213 is designated as a hydrogen inlet 201. By arranging the heat exchange tubes 210 as described above, each heat exchange tube 210 has two hydrogen inlets 201, facilitating the subsequent separate arrangement of the hydrogen inlet 233 and the hydrogen outlet 234. It should be noted that in the third embodiment of the present invention, it is also possible to use the heat exchange tubes 210 as in the second embodiment, except that the hydrogen inlet and outlet 232 are separated from the component used to drive the rotation.

[0042] In one embodiment of the present invention, all hydrogen inlets 201 are equipped with filters. The addition of filters prevents the escape of the solid hydrogen storage medium. Specifically, the filters can be filter screens or filter membranes, and the number of layers is not limited to one. Furthermore, the hydrogen inlet and outlet 232 mentioned later can also be equipped with filters to achieve secondary filtration.

[0043] In the second embodiment of the present invention, a steam pipe 102 is provided on the heat exchange shell 100. One end of the steam pipe 102 extending out of the heat exchange shell 100 is provided with a steam outlet 101. The portion of the steam pipe 102 extending into the heat exchange shell 100 is provided with multiple inlet and outlet holes spaced apart. By extending the steam pipe 102 within the heat exchange shell 100 and adding multiple inlet and outlet holes, the steam inlet and outlet rates can be increased, and uniform contact and reaction between the steam and the chemical heat storage medium can be ensured. Specifically, since the heat exchange tube 210 in the second embodiment is designed with a bent tube body 213, in order to reduce the overall size of the reactor, the steam pipe 102 can be offset from the heat exchange tube 210. Specifically, it can be located at the edge of the inner cavity of the heat exchange shell 100. The multiple inlet and outlet holes can be provided only circumferentially with the ends closed, or they can be provided simultaneously in both the circumferential and endoscopic directions of the steam pipe 102. Of course, the present invention is not limited to this. It is also possible to add a water vapor passage pipe 102 to the first and third embodiments of the present invention, and make corresponding adjustments.

[0044] In one embodiment of the present invention, the heat exchange tube side 200 further includes a tube bundle support plate 220 disposed within the heat exchange shell side 100. The tube bundle support plate 220 allows at least two heat exchange tubes 210 to pass through it. That is, by adding the tube bundle support plate 220, at least two heat exchange tubes 210 can be connected into an integrated structure to ensure the rigidity of the entire heat exchange tube side 200. Of course, the present invention is not limited to this; it is also possible to connect at least two heat exchange tubes 210 by means of structural components, either at one end within the heat exchange shell side 100 or at one end extending out of the heat exchange shell side 100. Specifically, the number of tube bundle support plates 220 is at least two, and the at least two tube bundle support plates 220 are sequentially spaced along the length direction of the heat exchange shell side 100, thereby further enhancing the rigidity. It should be noted that there is a gap between the tube bundle support plate 220 and the inner wall of the heat exchange shell 100, and the tube bundle support plate 220 can also be hollowed out or perforated in a position that avoids the heat exchange tube body 210 to facilitate the flow of heat or water vapor. Furthermore, when filling the chemical heat storage medium, the volume of the chemical heat storage medium filled between any two adjacent tube bundle support plates 220 can be close to or the same.

[0045] In one embodiment of the present invention, the heat exchange shell 100 is rotatably configured and has inclined agitator plates 130 on its inner wall. This rotatability increases the flow of the chemical heat storage medium at the bottom of the heat exchange shell 100, agitating and carrying it to the upper middle part to ensure full contact with the heat exchange tube body 210. Simultaneously, multiple agitator plates 130 are arranged at intervals along the circumference of the heat exchange shell 100 to form a ring of agitator plates, thereby improving the agitation effect. Furthermore, the multiple agitator plates 130 in the ring of agitator plates are arranged in the same inclination direction. The number of rings of agitator plates is multiple, and these rings are arranged at intervals along the length of the heat exchange shell 100, thus adapting to the arrangement of at least two tube bundle support plates 220. A ring of agitator plates can be correspondingly arranged between any two adjacent tube bundle support plates 220.

[0046] In one embodiment of the present invention, the heat exchange tube side 200 further includes a hydrogen storage chamber shell 230 located outside the heat exchange shell side 100. The hydrogen storage chamber shell 230 forms a hydrogen chamber 231. At least two heat exchange tubes 210 have hydrogen inlets 201 at one end that are connected to the hydrogen chamber 231. The side of the hydrogen storage chamber shell 230 away from the heat exchange tubes 210 is provided with a hydrogen inlet / outlet 232, and a flow control valve is provided on the hydrogen inlet / outlet 232. The addition of the hydrogen storage chamber shell 230 serves two purposes: firstly, it supports at least two heat exchange tubes 210; secondly, it facilitates the introduction and collection of hydrogen into the at least two heat exchange tubes 210. Simultaneously, the addition of the flow control valve makes it easier to control the rate of hydrogen release and introduction.

[0047] In one embodiment of the present invention, the control component further includes a first pressure sensor for detecting the pressure within the hydrogen chamber 231 and a second temperature sensor for detecting the temperature of the solid hydrogen storage medium. The controller is connected to the first pressure sensor, the second temperature sensor, and the flow control valve, and is further configured to: When the hydrogen chamber 231 is filled with hydrogen to a preset rotation pressure, the first drive component 300 is started. When the solid hydrogen storage medium is heated to the preset adjustment temperature, the flow control valve is adjusted to reduce the pressure in the hydrogen chamber 231 to the preset adjustment pressure.

[0048] Specifically, when the hydrogen storage reaction needs to be triggered, the hydrogen supply device can first be controlled to fill the hydrogen chamber 231 with hydrogen. When the first pressure sensor detects that the pressure inside the hydrogen chamber 231 reaches the preset rotational pressure, the first drive assembly 300 is started. Specifically, when only the heat exchange shell 100 rotates, the first drive assembly 300 can be controlled to drive the heat exchange shell 100 to rotate at a speed of 5 r / min to 10 r / min. When the second temperature sensor detects that the solid hydrogen storage medium has heated to the preset adjustment temperature, the flow control valve is controlled to adjust its opening, thereby reducing the pressure inside the hydrogen chamber 231 to the preset adjustment pressure. This pressure reduction lowers the temperature of the solid hydrogen storage medium. More specifically, the preset rotational pressure can be 1 to 3 MPa, the preset adjustment temperature can be above 380°C, preferably above 400°C, and the preset adjustment pressure can be 0.2 to 0.5 MPa. The second temperature sensor includes, but is not limited to, a thermocouple temperature sensor.

[0049] In one embodiment of the present invention, the hydrogen storage chamber shell 230 has a second connecting seat 235 fitted onto the heat exchange shell 100. A dynamic sealing element is provided between the second connecting seat 235 and the heat exchange shell 100, thereby ensuring relative movement between the heat exchange shell 100 and the heat exchange tube 200 while achieving a seal on the heat exchange shell 100.

[0050] In the second and third embodiments of the present invention, at least two heat exchange tubes 210 are single straight tubes, and there is only one hydrogen inlet / outlet 232, which is located in the middle of the hydrogen storage chamber shell 230. Since at least two heat exchange tubes 210 are single straight tubes, each heat exchange tube 210 can only connect to the hydrogen chamber 231 at one end and has a unique hydrogen outlet 201. By locating the hydrogen inlet / outlet 232 in the middle of the hydrogen storage chamber shell 230, and by arranging the hydrogen storage chamber shell 230 to bulge outward from the edge towards the center, it can be ensured that the distance from the hydrogen inlet / outlet 232 to the hydrogen outlet 201 of each heat exchange tube 210 is close.

[0051] In the first embodiment of the present invention, at least two heat exchange tube bodies 210 each include a first straight tube body 211 and a second straight tube body 212 arranged in parallel, and a bent tube body 213 connecting the first straight tube body 211 and the second straight tube body 212 at the same end. A partition plate 236 is provided in the hydrogen chamber 231 to divide the hydrogen chamber 231 into a first gas storage chamber 237 and a second gas storage chamber 238. All the first straight tube bodies 211 are connected to the first gas storage chamber 237, and all the second straight tube bodies 212 are connected to the second gas storage chamber 238, allowing hydrogen to enter and exit. There are two outlets 232, designated as a hydrogen inlet 233 and a hydrogen outlet 234. The hydrogen inlet 233 corresponds to the first gas storage chamber 237, and the hydrogen outlet 234 corresponds to the second gas storage chamber 238. This allows the hydrogen to flow in via the following path: hydrogen inlet 233 - first gas storage chamber 237 - first straight pipe 211 - second straight pipe 212, and the hydrogen to release via the following path: first straight pipe 211 - second straight pipe 212 - second gas storage chamber 238 - hydrogen outlet 234, both in one direction to increase the flow rate. Specifically, the partition plate 236 is centrally located within the hydrogen chamber 231, with the hydrogen inlet 233 and hydrogen outlet 234 located on opposite sides of the partition plate 236.

[0052] In the first embodiment of the present invention, the heat exchange shell side 100 includes a shell side body 110, a first connecting seat 140, and a sealing cover plate 120. The shell side body 110 has openings at both ends. The heat exchange tube side 200 is covered by the first end of the shell side body 110 through the second connecting seat 235. The heat exchange tube body 210 of the heat exchange tube side 200, which is used to store the corresponding medium, can extend into the shell side body 110 from the opening at the first end of the shell side body 110. A dynamic seal is provided between the shell side body 110 and the second connecting seat 235. A sealing cover plate is fitted on the outer peripheral side of the second end of the shell side body 110. The device includes a first connecting seat 140, and a dynamic seal is provided between the shell-side body 110 and the first connecting seat 140. A sealing cover 120 is placed over the second end of the shell-side body 110 and connected to the first connecting seat 140. Specifically, the sealing cover 120 and the first connecting seat 140 are detachably connected, and a static seal is provided between them. However, the invention is not limited to this; the sealing cover 120 can also be welded to the first connecting seat 140. Furthermore, the sealing cover 120 has a steam inlet 101. This allows the shell-side body 110 to be selectively driven to rotate, and when the shell-side body 110 rotates, the sealing end plate 120 with the steam inlet 101 remains stationary, facilitating docking of external equipment with the steam inlet 101. Additionally, both ends of the heat exchange shell 100 are detachable, which also facilitates the filling of the medium stored within the heat exchange shell 100. Of course, the present invention is not limited to this. It is also possible for the heat exchange shell side 100 to only have a shell side body 110 with an opening at one end, that is, the medium filling and the heat exchange tube side 200 need to be installed with the same opening at the same end.

[0053] In the second and third embodiments of the present invention, the first end of the heat exchange shell 100 is open, the heat exchange tube 100 is covered by the second connecting seat 235 at the first end of the heat exchange shell 100, the heat exchange tube 210 for storing the corresponding medium in the heat exchange tube 100 can extend into the heat exchange shell 100 from the first end opening of the heat exchange shell 100, and a dynamic sealing element is provided between the heat exchange shell 100 and the second connecting seat 235. The second end of the heat exchange shell 100 is closed and is provided with a first rotary joint 103. The rotating end of the first rotary joint 103 is connected to the heat exchange shell 100, and the fixed end is provided outward and has a water vapor inlet 101. The first rotary joint 103 is existing technology. Specifically, it can transfer fluid media between a stationary pipe and a rotating device. The fixed end of the first rotary joint 103 can be connected to a steam generator or a steam collector, and the rotating end of the first rotary joint 103 is connected to the heat exchange shell 100. This allows the rotating end of the first rotary joint 103 to rotate together with the heat exchange shell 100 while enabling steam flow, thus allowing the heat exchange shell 100 to be rotatably installed at its end. Furthermore, the end of the heat exchange shell 100 with the first rotary joint 103 is enclosed, which can be integrally formed or welded, thereby ensuring the overall strength of the entire heat exchange shell 100.

[0054] In the first and second embodiments of the present invention, the heat exchange tube side 200 is fixedly arranged, and the first driving component 300 drives the heat exchange shell side 100 to rotate. That is, only the heat exchange shell side 100 is selected to rotate, which reduces manufacturing costs, and compared with only the heat exchange tube side 200 rotating, the rotation of the heat exchange shell side 100 located on the outside can better ensure stability. Specifically, the number of first driving components 300 can be at least two, and at least two first driving components 300 are arranged at intervals along the length direction of the heat exchange shell side 100. The first driving component 300 can specifically be configured to include a motor, a reducer, and a gear pair. The gear pair includes a large gear ring disposed on the heat exchange shell side 100 and a small gear meshing with the large gear ring. The motor drives the small gear to rotate through the reducer. In addition, it can also be configured to use a chain drive, friction wheel drive, belt drive, or other drive components.

[0055] In the third embodiment of the present invention, both the heat exchange shell side 100 and the heat exchange tube side 200 are rotatable. A second rotary joint 239 is provided on the hydrogen storage chamber shell 230 located outside the heat exchange shell side 100 in the heat exchange tube side 200. The rotating end of the second rotary joint 239 is connected to the hydrogen storage chamber shell 230, and the fixed end is arranged outwards with hydrogen inlet and outlet 232. The second rotary joint 239 has the same structure as the first rotary joint 103. The fixed end of the second rotary joint 239 can be connected to a hydrogen supply device or a hydrogen demand device to obtain hydrogen from the hydrogen supply device and discharge hydrogen to the hydrogen demand device, respectively. The hydrogen storage and release control system also includes a second drive assembly. The first drive assembly 300 and the second drive assembly drive the rotating ends of the heat exchange shell side 100 and the second rotary joint 239 to rotate in a one-to-one correspondence. By making both the heat exchange shell side 100 and the heat exchange tube side 200 rotatable, the hydrogen release rate can be further improved. Furthermore, the first drive assembly 300 and the second drive assembly may, but are not limited to, be identical.

[0056] Furthermore, the heat exchange shell side 100 and the heat exchange tube side 200 can be configured to rotate in the same direction or in opposite directions, as long as they can achieve uniform heat transfer and agitation of the medium. Preferably, the heat exchange shell side 100 and the heat exchange tube side 200 have a relative velocity, and the heat exchange shell side 100 and the heat exchange tube side 200 are configured to rotate in opposite directions.

[0057] Furthermore, the present invention also provides a mobile hydrogen storage device, wherein the mobile hydrogen storage device includes a mobile walking device and a hydrogen storage and release control system according to the above-described method, the hydrogen storage and release control system being mounted on the mobile walking device. Since the mobile hydrogen storage device adopts all the technical solutions of the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated further here.

[0058] Specifically, the mobile walking device of the mobile hydrogen storage device can be a walking wheel to enable it to move; or it can be a vehicle body, that is, the entire mobile hydrogen storage device is a mobile hydrogen storage vehicle, so as to facilitate long-distance travel.

[0059] In the description of this invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0060] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0061] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0062] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A hydrogen storage and release control system, characterized in that, The hydrogen storage and release control system includes: A hydrogen storage reactor includes a heat exchange shell side (100) and a heat exchange tube side (200) disposed within the heat exchange shell side (100), wherein one of the heat exchange shell side (100) and the heat exchange tube side (200) is configured to store a solid hydrogen storage medium, and the other is configured to have a heat-generating storage medium, and at least one of the heat exchange shell side (100) and the heat exchange tube side (200) is configured to be rotatable; A first drive assembly (300) is used to drive at least one of the heat exchange shell side (100) and the heat exchange tube side (200); The control component includes a controller and a first temperature sensor for detecting the temperature of the heat storage medium. The controller is signal-connected to both the first temperature sensor and the first drive component (300) and is configured to: When the heat storage medium generates heat and rises to the preset rotation temperature, the first drive component (300) is controlled to start.

2. The hydrogen storage and release control system according to claim 1, characterized in that, The heat storage medium is a chemical heat storage medium. One of the heat exchange shell side (100) and the heat exchange tube side (200) storing the chemical heat storage medium is provided with a water vapor inlet (101) for water vapor to enter and exit, and the other of the heat exchange tube side storing the solid hydrogen storage medium is provided with a hydrogen inlet (201) for hydrogen to enter and exit.

3. The hydrogen storage and release control system according to claim 2, characterized in that, The heat exchange shell side (100) is configured to store the chemical heat storage medium, and the heat exchange tube side (200) is configured to store the solid hydrogen storage medium. The heat exchange tube side (200) includes at least two heat exchange tubes (210), which are arranged in parallel and spaced apart within the heat exchange shell side (100), and each of them has a hydrogen inlet (201) at one end.

4. The hydrogen storage and release control system according to claim 3, characterized in that, At least two of the heat exchange tubes (210) are single straight tubes, and at least two of the heat exchange tubes (210) are closed at one end and the other end is set as the hydrogen inlet (201). Alternatively, at least two of the heat exchange tube bodies (210) each include a first straight tube body (211) and a second straight tube body (212) arranged in parallel, and a bent tube body (213) connecting the first straight tube body (211) and the second straight tube body (212) at the same end, wherein the end of the first straight tube body (211) and the second straight tube body (212) away from the bent tube body (213) is respectively set as the hydrogen inlet (201).

5. The hydrogen storage and release control system according to claim 3, characterized in that, Each hydrogen inlet (201) is equipped with a filter; And / or, the heat exchange shell (100) is provided with a steam pipe (102), the steam pipe (102) is provided with a steam inlet (101) at one end extending out of the heat exchange shell (100), and the portion of the steam pipe (102) extending into the heat exchange shell (100) is provided with a plurality of inlet and outlet holes spaced apart; And / or, the heat exchange tube side (200) further includes a tube bundle support plate (220) placed in the heat exchange shell side (100), the tube bundle support plate (220) is for at least two heat exchange tubes (210) to pass through, the number of tube bundle support plates (220) is at least two, and the at least two tube bundle support plates (220) are arranged sequentially at intervals along the length direction of the heat exchange shell side (100); And / or, the heat exchange shell (100) is rotatably disposed and has an inclined agitator (130) on its inner wall. Multiple agitator (130) are arranged sequentially at intervals along the circumference of the heat exchange shell (100) to form a ring of agitator. The number of rings of the agitator is multiple, and the multiple rings of the agitator are arranged sequentially at intervals along the length of the heat exchange shell (100). And / or, the solid hydrogen storage medium is a metal hydride that can reversibly absorb and release hydrogen, and the chemical thermal storage medium is a metal hydroxide that can reversibly dehydrate and hydrate. And / or, the solid hydrogen storage medium is a magnesium-based hydrogen storage material, and the chemical thermal storage medium is magnesium hydroxide that can be reversibly dehydrated and hydrated.

6. The hydrogen storage and release control system according to claim 3, characterized in that, The heat exchange tube side (200) also includes a hydrogen storage chamber shell (230) located outside the heat exchange shell side (100). The hydrogen storage chamber shell (230) forms a hydrogen chamber (231). At least two of the heat exchange tube bodies (210) have hydrogen inlets (201) at one end that are connected to the hydrogen chamber (231). The hydrogen storage chamber shell (230) has a hydrogen inlet and outlet (232) on the side away from the heat exchange tube body (210). The hydrogen inlet and outlet (232) are equipped with flow control valves.

7. The hydrogen storage and release control system according to claim 6, characterized in that, The control assembly further includes a first pressure sensor for detecting the pressure within the hydrogen chamber (231) and a second temperature sensor for detecting the temperature of the solid hydrogen storage medium. The controller is connected to the first pressure sensor, the second temperature sensor, and the flow control valve, respectively, and is further configured to: When the hydrogen chamber (231) is filled with hydrogen to a preset rotation pressure, the first drive assembly (300) is started. When the solid hydrogen storage medium is heated to the preset adjustment temperature, the flow control valve is adjusted to reduce the pressure in the hydrogen chamber (231) to the preset adjustment pressure.

8. The hydrogen storage and release control system according to claim 6, characterized in that, The hydrogen storage chamber shell (230) has a second connecting seat (235) fitted onto the heat exchange shell (100), and a dynamic sealing element is provided between the second connecting seat (235) and the heat exchange shell (100); Alternatively, at least two of the heat exchange tubes (210) are single straight tubes, and the hydrogen inlet and outlet (232) are located in the middle of the hydrogen storage chamber shell (230); Alternatively, at least two of the heat exchange tubes (210) include a first straight tube (211) and a second straight tube (212) arranged in parallel, and a bent tube (213) connecting the first straight tube (211) and the second straight tube (212) at the same end. The hydrogen chamber (231) is provided with a partition plate (236) to divide the hydrogen chamber (231) into a first gas storage chamber (237) and a second gas storage chamber (238). All the first straight tubes (211) are connected to the first gas storage chamber (237), and all the second straight tubes (212) are connected to the second gas storage chamber (238). The number of hydrogen inlet and outlet (232) is two and is respectively set as a hydrogen inlet (233) and a hydrogen outlet (234). The hydrogen inlet (233) is set to correspond to the first gas storage chamber (237), and the hydrogen outlet (234) is set to correspond to the second gas storage chamber (238).

9. The hydrogen storage and release control system according to claim 2, characterized in that, The heat exchange shell side (100) includes a shell side body (110), a first connecting seat (140), and a sealing cover plate (120). The shell side body (110) has openings at both ends. The heat exchange tube side (200) is covered by a second connecting seat (235) at the first end of the shell side body (110). The heat exchange tubes (210) in the heat exchange tube side (200) for storing the corresponding medium can extend into the shell side body (110) from the opening at the first end of the shell side body (110). A dynamic seal is provided between the body (110) and the second connecting seat (235). The first connecting seat (140) is fitted on the outer periphery of the second end of the shell body (110). A dynamic seal is provided between the shell body (110) and the first connecting seat (140). The sealing cover (120) is placed on the second end of the shell body (110) and connected to the first connecting seat (140). The sealing cover (120) is provided with the water vapor inlet (101). Alternatively, the first end of the heat exchange shell (100) is open, and the heat exchange tube (200) is covered by the first end of the heat exchange shell (100) through the second connecting seat (235). The heat exchange tube (210) of the heat exchange tube (200) for storing the corresponding medium can extend into the heat exchange shell (100) from the first end opening of the heat exchange shell (100). A dynamic sealing element is provided between the heat exchange shell (100) and the second connecting seat (235). The second end of the heat exchange shell (100) is closed and provided with a first rotary joint (103). The rotating end of the first rotary joint (103) is connected to the heat exchange shell (100), and the fixed end is arranged outward and has the water vapor inlet (101).

10. The hydrogen storage and release control system according to any one of claims 1 to 9, characterized in that, The heat exchange tube side (200) is fixedly arranged, and the first driving component (300) drives the heat exchange shell side (100) to rotate; Alternatively, both the heat exchange shell side (100) and the heat exchange tube side (200) are rotatable. The hydrogen storage chamber shell (230) located outside the heat exchange shell side (100) in the heat exchange tube side (200) is provided with a second rotary joint (239). The rotating end of the second rotary joint (239) is connected to the hydrogen storage chamber shell (230), and the fixed end is arranged outward and has a hydrogen inlet and outlet (232). The hydrogen storage and release control system also includes a second drive assembly. The first drive assembly (300) and the second drive assembly drive the rotating ends of the heat exchange shell side (100) and the second rotary joint (239) to rotate in a one-to-one correspondence.

11. A mobile hydrogen storage device, characterized in that, The mobile hydrogen storage device includes a mobile walking device and a hydrogen storage and release control system according to any one of claims 1 to 10, wherein the hydrogen storage and release control system is mounted on the mobile walking device.

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