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

Experimental device and experimental method for simulating secondary hydrogen embrittlement of zirconium alloy cladding

An experimental device, technology of zirconium alloys, applied in the direction of reducing greenhouse gases, climate sustainability, reactors, etc.

Active Publication Date: 2022-04-15
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no invention and design of corrosion experimental device for secondary hydrogen embrittlement of zirconium alloy cladding in China, which is the first in China

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
  • Experimental device and experimental method for simulating secondary hydrogen embrittlement of zirconium alloy cladding
  • Experimental device and experimental method for simulating secondary hydrogen embrittlement of zirconium alloy cladding
  • Experimental device and experimental method for simulating secondary hydrogen embrittlement of zirconium alloy cladding

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] The following description serves to disclose the present invention to enable those skilled in the art to carry out the present invention. The preferred embodiments described below are only examples, and those skilled in the art can devise other obvious variations.

[0015] An experimental device for simulating secondary hydrogen embrittlement of zirconium alloy cladding, including a main test section system and a control and protection system, characterized in that: the main test section system includes heating rods and their control cabinets, zirconium alloy cladding, reaction Container, external heat source, thermocouple indicator, the heating rod is connected with the control cabinet through the lead wire drawn from the top, the heating rod and the zirconium alloy cladding are connected through a ferrule joint, and the ferrule joint is connected to the top of the reaction vessel Flange welding; the top flange and the reaction vessel are connected by screws and sealed...

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

Experimental device and experimental method for simulating the secondary hydrogen embrittlement of zirconium alloys, including the main experimental section system and control and protection system. The main experimental section system includes electric heating rods, control cabinets, zirconium alloy cladding, reaction vessels, external heat sources and The thermocouple temperature measurement system, the control and protection system includes a pressure gauge for measuring the internal pressure of the reaction vessel, a safety valve and a pressure relief valve. The invention can withstand high temperature and high pressure reaction vessel, and realize the actual high temperature and high pressure operation condition of the reactor simulated outside the reactor; the control cabinet can adjust the heating power of the heating rod by adjusting the electric power, so as to adjust the temperature of each part of the core test section, and simulate Thermal parameters under reactor operating conditions; when the heating power changes, the radial heat flux of the device changes, and the thermal conductivity of the zirconium alloy cladding basically does not change, which can ensure that the temperature difference between the inner and outer walls of the cladding changes with the power; By presetting tiny openings in the zirconium cladding tube, simulated water can be used to penetrate into the cladding tube to meet the occurrence conditions of secondary hydrogen embrittlement.

Description

technical field [0001] The invention relates to an experimental device and an experimental method for simulating the secondary hydrogen embrittlement phenomenon of zirconium alloy cladding, belonging to the field of engineering thermophysics and energy utilization. Background technique [0002] Zirconium alloy is a metal alloy with low neutron absorption cross-section and good corrosion resistance. Due to its superior performance, zirconium alloy is often used as cladding material for nuclear reactor fuel. At present, most water reactors in the world use zirconium alloy as Cladding material, its service condition is 320°C, 15.5MPa. The secondary hydrogenation phenomenon is the phenomenon that after the zirconium alloy cladding has a gap, the water in the primary circuit enters the cladding, is heated to generate water vapor, reacts with the inner wall of the cladding to generate hydrogen, and is absorbed to form a hydride. The generated hydride is a brittle hydride, and its...

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): G21C17/00G21C17/06
CPCG21C17/001G21C17/06Y02E30/30
Inventor 马雁黄柏锟陈嘉威朱卉平张智鑫李鑫鑫
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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