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CN-224215137-U - Solid-gas coupling hydrogen storage tank structure based on metal hydride hydrogen storage

CN224215137UCN 224215137 UCN224215137 UCN 224215137UCN-224215137-U

Abstract

The utility model relates to the technical field of hydrogen storage, and discloses a solid-gas coupling hydrogen storage tank structure based on metal hydride hydrogen storage, which comprises a tank body, wherein the tank body comprises an inner tank layer, an intermediate layer and an outer ring layer, the inner tank layer is of a psittacosis shell layered corrugated structure, the intermediate layer is of a honeycomb structure, the outer ring layer is of a smooth steel ring structure, hydrogen storage components are uniformly distributed along the circumferential direction of the inner wall of the inner tank layer and at least comprise a plurality of hydrogen storage components with different sizes so as to be matched with the inner tank space, the hydrogen storage components comprise a plurality of storage chambers and a thermal management system, the storage chambers are used for storing metal hydrides, vent holes are formed at two ends of the storage chambers, and the thermal management system comprises a liquid cooling component used for cooling during hydrogen absorption and a heating component used for heating during hydrogen release. Can strengthen the stability of jar body through setting up inner bag layer, intermediate level and outer lane layer, through setting up heating system in the hydrogen storage subassembly, can be to the temperature when controlling hydrogen absorption and release hydrogen.

Inventors

  • CAO ZHIJIE
  • ZHANG QIANG
  • REN KAI
  • ZHANG HAIHUA
  • ZHANG MENG

Assignees

  • 宁夏大学

Dates

Publication Date
20260508
Application Date
20250522

Claims (9)

  1. 1. A solid-gas coupled hydrogen storage tank structure based on metal hydride hydrogen storage, comprising: The novel hydrogen storage tank comprises a tank body (1), wherein the tank body (1) comprises an inner liner layer (11), an intermediate layer (12) and an outer ring layer (13), the intermediate layer (12) and the inner liner layer (11) are sequentially attached, and at least one hydrogen storage component (2) is attached to the inner wall of the inner liner layer (11); The inner container layer (11) is of a psittacosis shell layered corrugated structure, the middle layer (12) is of a honeycomb structure, the outer ring layer (13) is of a smooth steel ring (15) structure, the hydrogen storage components (2) are uniformly distributed along the circumferential direction of the inner wall of the inner container layer (11), and at least comprise a plurality of hydrogen storage components (2) with different sizes so as to be matched with the inner container space; The hydrogen storage assembly (2) comprises a plurality of storage chambers (21) and a thermal management system, wherein the storage chambers (21) are used for storing metal hydrides, vent holes (221) are formed in two ends of each storage chamber (21), and the thermal management system comprises a liquid cooling assembly used for cooling during hydrogen absorption and a heating assembly used for heating during hydrogen release.
  2. 2. The structure of claim 1, wherein two sides of the storage chamber (21) are detachably connected with a cover body (22), and the cover body (22) is provided with the vent hole (221).
  3. 3. The solid-gas coupling hydrogen storage tank structure based on metal hydride hydrogen storage according to claim 1, wherein the liquid cooling assembly comprises a liquid cooling pipeline (23), the liquid cooling pipeline (23) is located in the storage chamber (21), radiating fins (24) are arranged on the periphery of the liquid cooling pipeline (23), and the liquid cooling pipeline (23) and the radiating fins (24) are in direct contact with metal hydride for taking away reaction heat through liquid cooling circulation during hydrogen absorption.
  4. 4. The solid-gas coupled hydrogen storage tank structure based on metal hydride hydrogen storage according to claim 1, wherein the heating component comprises a PTC thermistor (25), the PTC thermistor (25) is used for rapidly heating metal hydride during hydrogen release, the PTC thermistor (25) is located at the central position of the hydrogen storage component (2), and a plurality of storage chambers (21) are uniformly distributed on the periphery of the PTC thermistor (25).
  5. 5. The solid-gas coupling hydrogen storage tank structure based on metal hydride hydrogen storage according to claim 3, wherein the hydrogen storage component (2) further comprises a liquid inlet end converging box (26) and a liquid outlet end converging box (27), one end of the liquid cooling pipeline (23) is connected into the liquid inlet end converging box (26), the other end of the liquid cooling pipeline is connected into the liquid outlet end converging box (27), the liquid cooling pipeline (23) is communicated with an external liquid cooling system through the liquid inlet end converging box (26) and the liquid outlet end converging box (27), a liquid inlet (261) is formed in the liquid inlet end converging box (26), and a liquid outlet (271) is formed in the liquid outlet end converging box (27).
  6. 6. The solid-gas coupling hydrogen storage tank structure based on metal hydride hydrogen storage according to claim 1, wherein the outer ring layer (13) comprises two hemispheroidal structures which are symmetrically arranged and a column structure which is positioned in the middle of the two hemispheroidal structures, a steel ring (15) is arranged at the joint of the column structure and the hemispheroidal structures, and the steel ring (15) is used for dispersing stress at the joint.
  7. 7. The solid-gas coupled hydrogen storage tank structure based on metal hydride hydrogen storage according to claim 1, wherein the outer ring layer (13) is provided with an air inlet and outlet (18) communicated with the vent hole (221), and a solenoid valve and a safety solenoid valve (17) for controlling gas on-off.
  8. 8. The structure of claim 5, wherein a liquid cooling pipe inlet (191) and a liquid cooling pipe outlet (192) are further arranged on one side of the outer ring layer (13), the liquid cooling pipe inlet (191) is communicated with the liquid inlet (261), and the liquid cooling pipe outlet (192) is communicated with the liquid outlet (271).
  9. 9. The solid-gas coupling hydrogen storage tank structure based on metal hydride hydrogen storage according to claim 1, wherein an air inlet and outlet (18) pressure detection meter and a tank body internal pressure detection meter (171) are further arranged on one side of the outer ring layer (13), and a base (14) is arranged below the outer ring layer (13).

Description

Solid-gas coupling hydrogen storage tank structure based on metal hydride hydrogen storage Technical Field The utility model relates to the technical field of hydrogen storage, in particular to a solid-gas coupling hydrogen storage tank structure based on metal hydride hydrogen storage. Background Hydrogen is used as a secondary energy source with high efficiency and cleanness, and the storage technology is one of the key links of hydrogen energy utilization. Currently, the mainstream hydrogen storage technology includes solid hydrogen storage and gaseous hydrogen storage, the solid hydrogen storage stores hydrogen through metal hydride, chemical hydride or other solid materials, the volume hydrogen storage density is higher than that of conventional gas hydrogen storage and liquid hydrogen storage, and the solid hydrogen storage has higher safety, and compared with high-pressure or low-temperature hydrogen storage, the solid hydrogen storage reduces the pressure and temperature requirements on a hydrogen storage system, so that the safety is improved. However, the weight hydrogen storage density of the solid-state hydrogen storage technology is low, and the requirement of vehicle-mounted application is difficult to meet. In contrast, the gaseous hydrogen storage technology has high maturity, high hydrogen charging and discharging speed and high hydrogen purity, can be directly used for fuel cells, but has low volume hydrogen storage density, the hydrogen density is only about 40kg/m 3 under the pressure of 70MPa, so that the vehicle-mounted hydrogen storage system has huge volume, the safety problem exists, the high-pressure environment is easy to cause hydrogen embrittlement and leakage risk, expensive carbon fiber composite materials are needed to be adopted for reinforcement, the energy consumption cost is high, and the compression to 70MPa consumes about 12% of hydrogen energy equivalent. In order to break through the technical bottleneck of a single hydrogen storage mode, a solid-gas coupling hydrogen storage technology is generated, and the comprehensive performance of a hydrogen storage system is remarkably improved by combining the high volume density characteristic of solid hydrogen storage with the high-quality hydrogen storage density and the rapid response advantage of gaseous hydrogen storage. In the existing solid-gas coupling hydrogen storage scheme, the structural design of the hydrogen storage tank adopts a traditional cylindrical single-layer or double-layer shell, and the problems that the traditional cylindrical structure is easy to generate stress concentration during collision or pressure fluctuation to cause deformation or leakage of the tank body, the hydrogen storage material is insufficient to contact with a heat exchange part, the temperature control is lagged in the hydrogen absorption and release process to influence the hydrogen storage circulation stability, the hydrogen storage structure is single in layout and is not optimized for the curved surface space inside the tank body, and the filling amount of the hydrogen storage material is limited are solved. Therefore, the utility model provides a solid-gas coupling hydrogen storage tank structure based on metal hydride hydrogen storage, and aims to realize unification of high hydrogen storage density, rapid hydrogen absorption and desorption and excellent cycle stability by optimizing the cooperative configuration of metal hydride materials and high-pressure gaseous hydrogen storage, thereby providing a new idea for the development of next-generation energy storage systems. Disclosure of utility model The utility model aims to provide a solid-gas coupling hydrogen storage tank structure based on metal hydride hydrogen storage, which solves the problems in the prior art, can enhance the stability of a tank body by arranging an inner container layer of a psittacosis shell layered corrugated structure, a middle layer of a honeycomb structure and an outer ring layer of a smooth steel ring structure, and can control the temperature during hydrogen absorption and hydrogen release by arranging a heating system in a hydrogen storage component. The solid-gas coupling hydrogen storage tank structure based on the metal hydride hydrogen storage comprises a tank body, wherein the tank body comprises an inner tank layer, an intermediate layer and an outer tank layer, the intermediate layer and the inner tank layer are sequentially attached, at least one hydrogen storage component is attached to the inner wall of the inner tank layer, the inner tank layer is of a psittacosis shell layered corrugated structure, the intermediate layer is of a honeycomb structure, the outer tank layer is of a smooth steel ring structure, the hydrogen storage components are uniformly distributed along the circumferential direction of the inner wall of the inner tank layer and at least comprise a plurality of hydrogen storage components with different sizes to be