Construction and Application of Functional Equipment Group in Qinshan Nuclear Power Plant

doi:10.16183/j.cnki.jsjtu.2021.S2.001

Abstract

Abstract:

Functional equipment group (FEG) puts the equipment with the same isolation characteristics and functions into the same group. Through the FEG, all maintenance with the same isolation scope can be arranged in the same shutdown window, avoiding repeated shutdown and reducing the system or equipment unavailability caused by the shutdown maintenance. With the expansion of FEG in more and more power plants, Qinshan Nuclear Power Plant has also formally constructed FEG. This paper introduces the construction and application process of the FEG in Qinshan Nuclear Power Plant, explores the application of the FEG in the management promotion of nuclear power plant, and expounds the importance of the FEG on formulating long-term cycle plan, optimizing preventive maintenance, optimizing shutdown window, reducing operation burden, improving efficiency of planed work, reducing the influence of maintenance work on unit operation, and improving the reliability of the equipment. The utilization of the FEG can optimize the allocation and utilization of manpower and resources in nuclear power plants.

Key words: nuclear power plant, functional equipment group (FEG), preventive maintenance, planed work, optimization

CLC Number:

ZHONG Xiaobo, YU Long, LÜ Shun, MU Wentong, ZHU Yanfeng. Construction and Application of Functional Equipment Group in Qinshan Nuclear Power Plant[J]. Journal of Shanghai Jiao Tong University, 2021, 55(S2): 1-6.

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FEG分类	FEG划分原则	FEG编码规则	FEG中文名称规则
单台主体设备为主体的FEG	单台转动设备为主体,周边管线阀门共同组成	电厂+转动设备编码	转动设备名称
多台设备划为一个FEG	多台设备串联共同执行同一功能;由相同隔离要求的多台阀门共同组成	电厂+一台主要设备编码	多台设备名称合并或者所有阀门共性描述
按系列划分FEG	整个系列执行同一功能,可单独隔离且不影响其它系列功能;整个系列预维安排在同一窗口	电厂+系列中一个相对重要的转动设备编码	系列名称+Ⅰ列(Ⅱ列)
按系统划分FEG	整个系统执行同一功能,单台设备不可用会导致整个系统失去功能;整个系统预维安排在同一窗口	电厂+系统+流水码(001、002等)	系统名称

原则	备注	系统或设备编码
机	泵、阀门等	BHQS
	电源、电机等	EC38、EC6K
仪	仪表、控制、连锁等	YGYS
电加热器		HQS-05C
供暖管线		无
冷却水		BHQS
油	冷却、润滑相关等	BXDY
供暖管线		无
风机		HQS-03C
通过历史工单查询

厚频度	优化后
8 m	1 a
15 m/16 m/18 m	2 a
32 m/3 a	4 a
64 m/5 a	6 a
80 m/90 m	8 a
128 m	12 a

厚频度	优化后
1 a/15 m/18 m	16 m
2 a	32 m
3 a/4 a	48 m
5 a	64 m
6 a	80 m
8 a/90 m	96 m
10 a	128 m

监测周期	开始时间	预维数量	平均停役次数	优化后监测周期	优化后开始时间	平均停役次数
32 m	2020-01-15	6	0.83次/年	4 a	2020-01-06	0.5次/年
64 m	2019-05-06	1		6 a	2020-01-06
2 a	2019-04-10	6		2 a	2018-01-06
4 a	2018-01-06	4		4 a	2018-01-06
6 a	2022-01-06	3		6 a	2022-01-06
8 a	2022-01-06	1		8 a	2022-01-06