Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A manufacturing process for preparing ultra-thin-walled vanadium tubes for high-purity hydrogen

A manufacturing process and ultra-thin-walled technology, applied in the manufacturing process of ultra-thin-walled vanadium tubes for high-purity hydrogen, in the field of high-purity hydrogen preparation, can solve the problems of low production efficiency and large investment in production equipment, and achieve the cost of hydrogen production Effect of low, high hydrogen permeability, high application prospects

Active Publication Date: 2019-04-23
BAOJI BOXIN METAL MATERIALS
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, although the preparation technology of high-purity hydrogen has made great progress, the investment in its production equipment is large and the production efficiency is low

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A manufacturing process for preparing ultra-thin-walled vanadium tubes for high-purity hydrogen
  • A manufacturing process for preparing ultra-thin-walled vanadium tubes for high-purity hydrogen

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] In this embodiment, a manufacturing process for preparing ultra-thin-walled vanadium tubes for high-purity hydrogen of the present invention will be further described. The steps of cleaning, cutting and inspecting storage are as follows:

[0020] 1. Purification of vanadium ingots: using vanadium-aluminum alloys as raw materials, they are processed into vanadium-aluminum alloy plates by rolling. The vanadium-aluminum alloy plates are smelted in a secondary electron beam vacuum furnace to obtain vanadium-aluminum ingots with higher vanadium purity, and then rolled into long 800mm x 100mm wide x thick (8-10mm) vanadium-aluminum alloy plates are sent to the electron beam vacuum furnace for the third time for smelting.

[0021] Vacuum the electron beam vacuum furnace to 5×10 before melting -3 Pa, and water-cooled the water-cooled crucible in the electron beam vacuum furnace. The water temperature was maintained at 30°C, and the electric high voltage was set to 9kv. The van...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
diameteraaaaaaaaaa
thicknessaaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

The invention belongs to the field of nonferrous metal machining, and particularly relates to a manufacturing process of an ultra-thin-wall vanadium pipe for preparing high purity hydrogen. The manufacturing process mainly comprises the steps of vanadium ingot purification, vanadium ingot forging, heat treatment and pipe blank making, pipe rolling and intermediate annealing, vanadium pipe cleaning, specific cutting and inspection storage. An electron beam furnace is used for refining a high-purity metal vanadium ingot casing multiple times, wherein the ingot casing can be directly rolled and machined, then, the ingot casing can be further rolled into the thin-wall vanadium pipe with the diameter being 6 mm, the vanadium pipe wall thickness is 0.15+ / -0.01 mm, and the purity is larger than or equal to 99.95%; the manner that an existing expensive palladium and alloy ultra-thin-wall pipe is used for hydrogen production is replaced, the hydrogen production cost is lower, the hydrogen penetration is higher, the infinite selectivity for hydrogen is achieved, and the higher application prospect is achieved.

Description

technical field [0001] The invention belongs to the technical field of nonferrous metal processing and relates to the preparation of high-purity hydrogen, in particular to a manufacturing process for preparing ultra-thin-walled vanadium tubes for high-purity hydrogen. Background technique [0002] When most hydrogen is used, hydrogen is required to have a high purity (above 99.99%), and many important occasions require high-purity hydrogen (≥99.999%), such as fuel hydrogen for rocket launch, proton exchange membrane fuel cell (proton exchange membrane fuel cell), semiconductor industry, etc. The hydrogen used in fuel cells is of high purity, and impurities in hydrogen will seriously affect its performance, even a small amount of CO, CO 2 , N 2 Other impurities will also poison the battery and fail. However, the vast majority of hydrogen (>90%) is generated from the water vapor of hydrocarbons, and the gas obtained by this method contains CH in addition to hydrogen. 4 ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/00
CPCB23P15/00
Inventor 韩伟东王玉华
Owner BAOJI BOXIN METAL MATERIALS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com