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CN-224201510-U - Vehicle-mounted hydrogen storage tank

CN224201510UCN 224201510 UCN224201510 UCN 224201510UCN-224201510-U

Abstract

A vehicle-mounted hydrogen storage tank belongs to the field of hydrogen storage and transportation. The vehicle-mounted hydrogen storage tank comprises a sealed shell, a plurality of air ducts, a plurality of air outlet holes, a hydrogen input/output interface and a plurality of solid hydrogen storage materials, wherein a cavity is formed in the sealed shell, the air ducts are arranged in the cavity, a hydrogen conveying channel is formed in the air ducts, the surface of each air duct is provided with the corresponding air outlet hole, the hydrogen input/output interface is communicated with the corresponding hydrogen conveying channel, and the air ducts can be penetrated by the solid hydrogen storage materials to limit radial and axial displacement of the solid hydrogen storage materials. According to the vehicle-mounted hydrogen storage tank, the air duct is used as the limiting element and the air transmission element, so that abrasion between hydrogen storage media and between the air duct and the buffer element can be reduced in the transportation process, loss of the hydrogen storage media is avoided, meanwhile, the hydrogen charging and releasing speed can be improved, and the vehicle-mounted hydrogen storage tank is convenient and safe to transport.

Inventors

  • LI LU
  • WAN DAIHONG
  • LANG FUSHUANG

Assignees

  • 安徽吉镁氢能科技有限公司

Dates

Publication Date
20260505
Application Date
20250623

Claims (10)

  1. 1. A vehicle-mounted hydrogen storage tank, comprising: a sealed housing having a cavity formed therein; The hydrogen storage device comprises a cavity, a plurality of air ducts, a plurality of air holes, a plurality of air flow channels and a plurality of air flow channels, wherein a plurality of solid hydrogen storage materials can be penetrated through the air ducts to limit radial and axial displacement of the air ducts; The hydrogen input and output interface is arranged on the sealing shell and is communicated with the hydrogen conveying channel inside the air duct.
  2. 2. The vehicle-mounted hydrogen storage tank of claim 1, wherein the thickness of the sealed housing is 0.5-2mm, and/or The sealing shell is made of engineering plastics or simple substances or alloys of aluminum and iron.
  3. 3. The vehicle-mounted hydrogen storage tank of claim 1, wherein the sealed housing is provided with an operation port capable of replacing an internal solid hydrogen storage material.
  4. 4. The vehicle-mounted hydrogen tank of claim 1 wherein there is only one of said air ducts located at a central location in said cavity.
  5. 5. The vehicle-mounted hydrogen tank of claim 1 wherein, The cross section diameter of the vehicle-mounted hydrogen storage tank is within the range of 6.2-30 cm, and/or The internal volume of the vehicle-mounted hydrogen storage tank is smaller than or equal to 0.1m 3 .
  6. 6. The on-vehicle hydrogen tank of claim 5 wherein, The cross section shape of the vehicle-mounted hydrogen storage tank accords with the axisymmetry, the rotational symmetry or the central symmetry, and/or The cross section diameter of the vehicle-mounted hydrogen storage tank is within the range of 6.2-22 cm, and/or The internal volume of the vehicle-mounted hydrogen storage tank is smaller than or equal to 0.05m 3 .
  7. 7. The vehicle-mounted hydrogen tank of claim 6 wherein, The cross-sectional shape of the vehicle-mounted hydrogen storage tank is selected from regular polygon, runway shape, round or elliptic shape, and/or The cross section diameter of the vehicle-mounted hydrogen storage tank is within the range of 8.2-16 cm, and/or The internal volume of the vehicle-mounted hydrogen storage tank is smaller than or equal to 0.03m 3 .
  8. 8. The vehicle-mounted hydrogen storage tank of claim 1, wherein the plurality of air outlet holes on the air duct are round holes with diameters ranging from 0.1 cm to 1cm or strip-shaped or oval holes with short shaft widths ranging from 0.1 cm to 1cm, and/or No heating element is provided inside the sealed enclosure.
  9. 9. The vehicle-mounted hydrogen storage tank of claim 8, wherein the ratio of the number of gas outlet holes to the width/length is 1:3 or less.
  10. 10. The vehicle-mounted hydrogen storage tank of claim 1, wherein at least one of the two ends of the gas-guide tube is provided with a buffer element for abutting and buffering expansion of the solid hydrogen storage material.

Description

Vehicle-mounted hydrogen storage tank Technical Field The utility model relates to the field of hydrogen storage and transportation, in particular to a vehicle-mounted hydrogen storage tank. Background In recent years, hydrogen is greatly valued as a novel clean energy source in China, and is vigorously developed, but the difficult problems of storage and transportation are important factors for restricting the development of hydrogen energy. The solid-state hydrogen storage technology is an important research direction in the field of hydrogen energy for two years, has remarkable advantages in the aspects of safety, economy, hydrogen storage density and the like compared with the traditional high-pressure gaseous hydrogen storage and low-temperature liquid hydrogen storage, and particularly has wide application potential in the fields of vehicle hydrogen energy, long-distance transportation, large-scale energy storage and the like. Compared with the traditional high-pressure gaseous hydrogen storage mode and low-temperature liquid hydrogen storage mode, the solid hydrogen storage technology stores hydrogen in a solid material through physical adsorption or chemical reaction, has the remarkable advantages that (1) the hydrogen storage density is high, the hydrogen storage density of the magnesium-based solid hydrogen storage material can reach more than 6.4 weight percent, and the capacity of a single hydrogen storage tank is as high as 1 ton and is far higher than that of the traditional hydrogen storage mode. (2) The solid hydrogen storage material has high safety, and the stability ensures that the solid hydrogen storage material safely stores hydrogen at normal temperature and normal pressure, thereby reducing risks in the transportation and use processes. (3) The method has good economy, omits a complex compression or deep cooling process, and reduces equipment cost and energy consumption. (4) The environment adaptability is strong, the requirements on the environment temperature and the environment pressure are low, and the method is suitable for various application scenes. Because of these advantages, solid state hydrogen storage technology has become a hotspot in current research, and in particular, magnesium-based solid state hydrogen storage technology has entered the stage of commercial application, and has made breakthroughs in a number of fields. However, as a hydrogen storage and transportation scheme with great potential, the magnesium-based solid hydrogen storage technology has remarkable advantages in the aspects of safety, hydrogen storage density, normal temperature and normal pressure operation and the like, but has not become a main means for transporting hydrogen in a vehicle, and the main reasons include that (1) the vehicle-mounted gas storage equipment needs to fully consider the crashworthiness and equipment safety of hydrogen storage materials, compared with the fixedly placed hydrogen storage equipment, the hydrogen storage materials such as powder, small particles and the like cannot be used, because the hydrogen storage materials are easy to collide and crush, the gas pipe is blocked to induce accidents, or the hydrogen storage materials are lost because the gas flow is taken away, and (2) the vehicle-mounted hydrogen storage equipment also needs to consider the convenience of hydrogen charging and hydrogen releasing, the temperature of the magnesium-based solid hydrogen storage material (such as MgH 2) reaches 300 ℃ when the magnesium-based solid hydrogen storage material is charged, the pressure reaches 1-5 MPa, the high temperature above 300 ℃ when the hydrogen is released, the hydrogen release temperature is high and the dynamics is slow, and the storage and transportation equipment can tolerate the high temperature and the high pressure. (3) The need for an on-board hydrogen storage device to sufficiently increase the capacity, if a magnesium-based solid state hydrogen storage technology is used, requires that it store as much hydrogen gas as possible per unit volume, which is in contradiction with the aforementioned point (1), because it is well known in the art that the smaller the particle size of the magnesium-based solid state hydrogen storage material, the larger the surface area, and the greater the hydrogen storage density and hydrogen release rate. In view of the foregoing, there is a strong need to develop an on-board hydrogen storage tank containing a solid hydrogen storage material to at least partially address the current drawbacks and deficiencies in order to better enhance the efficiency and safety of on-board hydrogen transportation. Disclosure of utility model In view of the above, the present utility model is directed to a vehicle-mounted hydrogen storage tank, so as to at least partially solve the above-mentioned problems. In order to achieve the above object, the present utility model proposes a vehicle-mounted hydrogen storage tank comprising: a sealed