原文传递
Remote Welding, NDE and Repair of DOE Standardized Canisters
| 题名： | Remote Welding, NDE and Repair of DOE Standardized Canisters |
| 作者： | Rodney Bitsoi;Dave Pace;Timothy R. McJunkin;Art Watkins;Eric Larsen; |
| 关键词： | canisters; NSNFP; SNF; spent nuclear fuel46 - INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; CLOSURES; CONTAINERS; CONTAMINATION; DEFECTS; EDDY CURRENTS; ENGINEERS; HOT CELLS; MONITORS; NUCLEAR FUELS; PACKAGING; RADIATIONS; REPAIR; STORAGE; TESTING; ULTRASONIC WAVES; VERIFICATION; WASTE STORAGE; WELDING; SPENT FUELS |
| 摘要： | The U.S. Department of Energy (DOE) created the National Spent Nuclear Fuel Program (NSNFP) to manage DOE鈥檚 spent nuclear fuel (SNF). One of the NSNFP鈥檚 tasks is to prepare spent nuclear fuel for storage, transportation, and disposal at the national repository. As part of this effort, the NSNFP developed a standardized canister for interim storage and transportation of SNF. These canisters will be built and sealed to American Society of Mechanical Engineers (ASME) Section III, Division 3 requirements. Packaging SNF usually is a three-step process: canister loading, closure welding, and closure weld verification. After loading SNF into the canisters, the canisters must be seal welded and the welds verified using a combination of visual, surface eddy current, and ultrasonic inspection or examination techniques. If unacceptable defects in the weld are detected, the defective sections of weld must be removed, re-welded, and re-inspected. Due to the high contamination and/or radiation fields involved with this process, all of these functions must be performed remotely in a hot cell. The prototype apparatus to perform these functions is a floor-mounted carousel that encircles the loaded canister; three stations perform the functions of welding, inspecting, and repairing the seal welds. A welding operator monitors and controls these functions remotely via a workstation located outside the hot cell. The discussion describes the hardware and software that have been developed and the results of testing that has been done to date. |
| 报告类型： | 科技报告 |
相关文献
- Eddy Current Examination of Spent Nuclear Fuel Canister Closure Welds
- Design considerations for NDE systems in a factory setting and the application to transmission manufacture at the Chrysler Transmission Plant in Kokomo, Indiana
- Repair of Process-Related Defects in Electroslag Welding; Final rept. Aug 86-Sep 92
- Development of a Remote External Repair Tool for Damaged or Defective Polyethylene Pipe
- Development of a Weldable Neutron Absorbing Structural Material
- Fracture and Fatigue Evaluation of Slot-Welded Railhead Repairs. Research Results.
检索历史
应用推荐
