Search

CN-116510640-B - Portable chemical hydrogen production equipment and application thereof

CN116510640BCN 116510640 BCN116510640 BCN 116510640BCN-116510640-B

Abstract

The invention relates to the technical field of hydrogen production equipment, in particular to portable chemical hydrogen production equipment and application thereof, the hydrogen production equipment comprises a box body, a hydrogen production box and a top cover, the box body is hollow, the top of the box body is open, the hydrogen production box and the top cover are both detachably connected with the box body, the inside mounting panel that is equipped with of box body, mounting panel divide into installation cavity and water storage chamber with the box body, are equipped with the water route in the box body, and the water route is including the collection pipeline that is located the box body bottom and the heat transfer runner that is located the mounting panel. The hydrogen production equipment provided by the invention can conveniently use an external water source, realizes the integral cyclic and repeated use of the equipment through the detachable and replaceable hydrogen production box, and simultaneously realizes the transfer of heat in the hydrogen production box to water flow through the heat exchange piece and the heat exchange flow channel arranged in the mounting plate arranged in the equipment, thereby not only reducing the temperature in the hydrogen production box, but also heating the water flow flowing into the hydrogen production box, and realizing passive heat dissipation without external energy.

Inventors

  • WANG JIANGTAO
  • WANG JIANGFENG
  • LI JIANGNAN
  • LI FAJIA

Assignees

  • 北京京豚科技有限公司

Dates

Publication Date
20260512
Application Date
20230417

Claims (8)

  1. 1. The portable chemical hydrogen production equipment is characterized by comprising a box body (8), a hydrogen production box (5) and a top cover (1), wherein the box body (8) is hollow and the top is open, the hydrogen production box (5) is arranged in the box body (8), the top cover (1) is detachably arranged at the top of the box body (8), The hydrogen production device is characterized in that a mounting plate (3) used for fixing the position of the hydrogen production box (5) is arranged inside the box body (8), the mounting plate (3) divides the inside of the box body (8) into a mounting cavity at the inner side of the mounting plate (3) and a water storage cavity (2) at the outer side of the mounting plate (3), a waterway is arranged at the bottom of the box body (8), two ends of the waterway are respectively communicated with the hydrogen production box (5) and the water storage cavity (2), a spring system (7) is further arranged in the box body (8), and the spring system (7) is used for providing elasticity to convey water in the water storage cavity (2) into the hydrogen production box (5) along the waterway; The water storage cavity (2) is a rubber water storage bag sleeved outside the mounting plate (3), the spring system (7) is arranged inside the rubber water storage bag, and two ends of the spring system (7) are respectively connected with the rubber water storage bag and the mounting plate (3); A hydrogen production material (9) for preparing hydrogen by reacting with water is stored in the hydrogen production box (5); The utility model discloses a hydrogen production box, including mounting panel (3), mounting panel (3) are inside to be filled with, the water route includes heat transfer runner and collection pipeline (12), inside mounting panel (3) are located to the heat transfer runner, collection pipeline (12) are located box body (8) bottom, the entry and the export of heat transfer runner are first entry and first export respectively, the entry and the export of collection pipeline (12) are second entry and second export (11) respectively, first entry is located mounting panel (3) outside, first export is located mounting panel (3) bottom surface, first export with second entry intercommunication, second export (11) with hydrogen production box (5) bottom intercommunication.
  2. 2. A portable chemical hydrogen plant according to claim 1, characterized in that the heat exchange member (13) is a heat conducting fin.
  3. 3. A portable chemical hydrogen plant according to claim 2, characterized in that the gaps between adjacent heat exchanging elements (13) constitute the heat exchanging flow channels.
  4. 4. The portable chemical hydrogen production device according to claim 1, wherein a hydrogen passage is arranged in the top cover (1), a hydrogen inlet (4) communicated with the hydrogen production box (5) is formed in the bottom surface of the top cover (1), a hydrogen outlet (6) is formed in the top surface of the top cover (1), a pressure stabilizing valve (15) is arranged at the hydrogen outlet (6), a waterway valve (16) and a one-way valve (17) are arranged on the waterway, the waterway valve (16) is used for opening and closing the waterway, and the one-way valve (17) is used for realizing one-way communication of the waterway from the water storage cavity (2) to the hydrogen production box (5).
  5. 5. A portable chemical hydrogen production apparatus as claimed in claim 1, wherein the hydrogen production cartridge (5) is detachably arranged in a cartridge body (8), the top cover (1) is in threaded connection with the cartridge body (8), a compression spring groove is formed in the bottom of the installation cavity, and a compression spring is fixed in the compression spring groove.
  6. 6. Use of a portable chemical hydrogen plant as claimed in any one of claims 1-5 in ice and snow environments.
  7. 7. Use according to claim 6, characterized in that the water storage chamber (2) is filled with a low-freezing point aqueous solution and ice and/or snow.
  8. 8. The use as claimed in claim 7, wherein the solvent of the low-freezing point aqueous solution is selected from one or more of calcium chloride, sodium chloride or aluminum chloride, the low-freezing point aqueous solution has a freezing point lower than the ambient temperature of use of the portable chemical hydrogen production plant, and the low-freezing point aqueous solution occupies 1/3 to 1/2 of the volume of the water storage chamber (2).

Description

Portable chemical hydrogen production equipment and application thereof Technical Field The invention relates to the technical field of hydrogen production equipment, in particular to portable chemical hydrogen production equipment and application thereof. Background As fuel cell technology has matured, it has been increasingly used in the fields of transportation, power generation, portable power sources, and the like. Although eight components such as proton exchange membranes, carbon papers, membrane electrodes, stacks, air compressors, etc. are critical to the performance of fuel cells, in practical applications, particularly for portable fuel cells, effective hydrogen storage is more important. Because hydrogen is flammable and the ignition energy is small, in a large oxygen or air range, the chemical activity and permeability of hydrogen can react with various metals under certain conditions to cause embrittlement of metal tissues (namely hydrogen embrittlement), and leakage of a hydrogen storage system and rupture of a pipeline container are often caused. Therefore, the hydrogen storage technology is extremely critical for fuel cells, particularly small and medium power portable fuel cells. Especially, the method is suitable for the difficulty of using a large amount of hydrogen in remote areas or in the wild, and the current main hydrogen supply modes comprise high-pressure gas cylinders, liquid hydrogen storage, hydrogen production by reforming methanol, solid hydrogen storage, carbon nano tube hydrogen storage, chemical hydrogen production and the like. The method has the advantages of low cost, low power consumption, simple process, strong controllability, convenient supply and high safety, and is the most suitable scheme for portable hydrogen production. The contact of the catalyst and the aqueous solution can be controlled by chemical hydrogen production, the generation and termination of the reaction can be controlled, and the reaction rate of hydrogen production, namely the production amount of hydrogen, can be controlled. At present, the chemical hydrogen production is more in variety and mainly comprises common types such as metal water hydrogen production, ferrosilicon powder hydrogen production, borohydride hydrogen production and the like, wherein the theoretical hydrogen storage amount of the borohydride is highest, such as common Mg (the theoretical hydrogen storage amount of BH 4)2 is 14.9%, and the theoretical hydrogen storage amount of BH 4)3 is 16.9%, but no simple and reliable chemical hydrogen production equipment is available at present, so that the application and popularization of the chemical hydrogen production are influenced, and therefore, the portable and reliable chemical hydrogen production equipment can promote a small-power supply to be used in the wild or in remote areas. The prior art, such as the Chinese patent document CN 108264019A (application number 201810062048.3), discloses a portable hydrogen production and supply device and a hydrogen fuel cell system, which comprises an elastic water storage container, a compression cover body and a reaction container, when in use, the elastic water storage container is filled with water and then sealed, the pressure applied on the elastic water storage container by an elastic compression piece is utilized to supply water to the reaction container, after the water supply switch is turned on, the elastic water storage container is elastically deformed under the pressure action of the elastic pressing piece, water enters the reaction container under the pressure action and undergoes hydrolysis reaction with hydrolysis hydrogen production materials arranged in the reaction container to generate hydrogen, and the hydrogen generated in the reaction container is output and utilized through the hydrogen output port. The device provides a portable hydrogen production and supply device, but the water supply assembly of the device can only provide a disposable water source by the elastic water storage container, and when the water source in the elastic water storage container is exhausted, the device cannot be continuously used by utilizing an external water source. Meanwhile, the prior art, such as CN 115650158A (application number 202211655352.1) and CN 114284536a (application number 202111669217.8), respectively disclose a portable chemical hydrogen production device and a portable power source based on solid-state hydrogen storage and fuel cells, both of which are provided with fans for heat dissipation in the device, but the arrangement of active circulation heat dissipation by using the fans not only needs to consume a large amount of electric energy, but also needs to occupy a certain space, and the heat dissipation effect cannot be effectively guaranteed, so that the device for active heat dissipation by using the fans cannot effectively control the whole volume of the device, influence the portability degree of the device,