核安全2024，Vol.23Issue(4)：38-42,5.
蒸汽发生器排污能力不足问题原因分析和处理
Cause Analysis and Treatment for Insufficient Blowdown of Steam Generator
王思远 1田敬云 1陈吉玲1
作者信息
- 1. 中国核电工程有限公司郑州分公司,郑州 450000
- 折叠
摘要
Abstract
During the discharge of the steam generator blowdown system of Tianwan Unit 4,the capacity cannot meet the requirement of operation regulation,and the control valve opening had exceeded 90%,which leads to the loss of control capacity.Due to the modification of the original system equipment,the relevant resistance characteristics have changed.Therefore,the method of simulating and modeling to analyze the resistance characteristics of the original pipeline cannot be carried out.Herein,we chooses to use the existed operation parameters to calculate the device characteristic curve of the whole pipeline,and analyzes the reason which is the insufficient pump capacity.Based on the required flowrate by the regulation,the pump head was calculated to complete the selection of the new pump,which has been considering the factor of control valve opening.Finally,the problem of insufficient blowdown capacity is effectively solved,which provides a reference basis for solving similar problems in subsequent power plant renovations.关键词
蒸汽发生器排污系统/排污流量/装置特性曲线Key words
steam generator blowdown system/blowdown flowrate/device characteristic curve分类
能源科技引用本文复制引用
王思远,田敬云,陈吉玲..蒸汽发生器排污能力不足问题原因分析和处理[J].核安全,2024,23(4):38-42,5.
