Heavy water reactor spent fuel basket welding center column butt joint welding 1#-2 comparison test block

Abstract

The invention belongs to the technical field of spent fuel transmission of nuclear power plants, in particular to a heavy water reactor spent fuel basket welding center column butt joint welding 1#-2comparison test block. The purpose is to research and develop a set of heavy water reactor spent fuel basket welding center column butt joint 1#-2 comparison test block so that the welding quality ofa fuel basket can be ensured to be verified, safety and reliability in the hoisting process of the fuel basket can be ensured to be achieved, and the existence of the risk of occurrence of falling inthe hoisting process due to the problem of the welding quality of a center column can be effectively avoided. The heavy water reactor spent fuel basket welding center column butt joint welding 1#-2 comparison test block is characterized by being in a cuboid shape integrally, a first detection hole is formed in the center of the front end face of the test block, a second detection hole is formed inthe left side of the center of the rear end face of the test block, and the detection holes are used for simulating the defects existing in the weld joint. According to the described center column butt joint 1#-2 comparison test block, the effects of being safe and reliable are achieved, the use is convenient, the stability is high, the economic benefit is high, the welding quality of the centercolumn of the fuel basket is ensured, and the problem of the center column of the fuel basket is avoided.

Description

technical field [0001] The invention belongs to the technical field of nuclear power plant spent fuel transmission, and in particular relates to a 1#-2 comparison test block for welding center column butt joint welding of a heavy water reactor spent fuel basket. Background technique [0002] Temporary dry storage of spent fuel is a new project of Qinshan Nuclear Power. The spent fuel basket is the main equipment of the dry storage project. It is directly used to load spent fuel. Its structure is circular and the material is stainless steel. The key is that it has several welds. Important, the butt welds of the center column of the fuel basket, etc. These welds require a high level of welding technology and are multi-layer welds. In order to verify the quality of these welds, the welded center column butt joint 1#-2 is designed for this purpose. Compare the test block, that is, record the inspection results of the center column welding test block through the ultrasonic inspec...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to develop a set of heavy water reactor spent fuel basket welding center column butt joint 1#-2 comparison test block to ensure the verification of the fuel basket welding quality, to ensure that the fuel basket is safe and reliable when lifting, and to effectively prevent the center column from being damaged. There is a risk of falling during hoisting due to welding quality problems

Images