CPR1000型核电站装料后NC-DCS在线改造研究
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摘要
随着核电工程建设的推进,各种现场问题不断暴露,装料后为提高机组运行可靠性,DCS需要处理一些关键设计变更及现场缺陷。目前国内核电站机组在装载核燃料后, DCS存在缺少停盘改造时间窗口、改造风险大、影响范围广等困难。中广核工程公司依托CPR1000项目,根据非安全级DCS平台(MACS VI)自身特性,在满足风险控制要求和改造质量要求的前提下,提出CPR1000项目装料后非安全级DCS系统的在线改造控制方案。目前该方案已成功应用于CPR1000项目多台机组装料后的改造,对缩短工期、节约投资、提高工程质量与机组安全水平有重要作用,为后续项目装料后NC-DCS改造提供了参考和借鉴。
Along with the push of nuclear power engineering construction, various problems on site are getting revealed. In order to enhance the operation reliability of the units, DCS needs to set up some design changes. However, after loading core of nuclear power plant, there are many problems, such as the lack of change time window, the high reconstruction risks and the wide range of effects. Relying on the CPR1000 project and according to the Non-safety DCS platform(MACS VI)'s unit feature, the China Nuclear Power Engineering Company has come up with the online modification program for Non-safety DCS after loading core, based on the premise of complying security control and quality construction. The new program has been successfully deployed to the units in CPR1000 project, which has a crucial affect over cutting down working hours, saving investment,and improving quality and safety level of the crew. It also provides a valuable reference and experience for the following NC-DCS reconstruction.
Along with the push of nuclear power engineering construction, various problems on site are getting revealed. In order to enhance the operation reliability of the units, DCS needs to set up some design changes. However, after loading core of nuclear power plant, there are many problems, such as the lack of change time window, the high reconstruction risks and the wide range of effects. Relying on the CPR1000 project and according to the Non-safety DCS platform(MACS VI)'s unit feature, the China Nuclear Power Engineering Company has come up with the online modification program for Non-safety DCS after loading core, based on the premise of complying security control and quality construction. The new program has been successfully deployed to the units in CPR1000 project, which has a crucial affect over cutting down working hours, saving investment,and improving quality and safety level of the crew. It also provides a valuable reference and experience for the following NC-DCS reconstruction.
引文
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