This article comprehensively analyses some malfunction,happened during commission and operation,on the feedwater system of the 700 MW unit of Zhuhai Power Station,and introduce some effective measures,such as the pump warming,the minimum flow control valve adjustment,extreme operation condition and the reliability of the feedwater system.
分析珠海电厂700 MW发电机组锅炉给水系统调试和运行过程中出现的故障;针对给水泵的暖泵效果、最小流量调整、极端工况安全运行、提高工作汽源可靠性等方面提出可行的改造方案,并在实践中取得了良好的效果,提高了锅炉给水系统的可靠性。
A method of controlling the recirculatary valve for minimum flow rate of feed-water by using the hysteresis function method has been put forward for preventing occurrence of cavitation in feed-water pumps.
提出了采用回滞函数法控制给水泵最小流量再循环阀的方法。
Low-flows under threshold (LUT) series have been used as an alternative to annual minima series in low flow frequency analysis.
实测枯水流量系列和统计试验的计算结果表明,Po-Ex模型的拟合和预测效果较好,要优于采用年最小流量取样和P3模型的枯水频率分析。
Low-flows under threshold(LUT) series have been used as an alternative to annual minima series in low flow frequency analysis.
实测枯水流量系列的计算结果表明:混合分布的拟合和预测效果较好,要优于采用年最小流量取样和P-Ⅲ分布的枯水频率分析;基于低定量取样的分布可利用更多枯水流量信息,具有更强的物理相关性。
ANALYSIS OF THE MIN. FLOW RECIRCULATION VALVE OF BFP
给水泵最小流量再循环阀的技术分析
Study on Flow Characteristics for Minimum Flow Regulating Valve with Labyrinth Channel
迷宫式最小流量调节阀的流动特性研究
Improvement of Minimum-flow Control for Feed Pumps of Supercritical Power Units
超临界机组给水泵最小流量控制方法的改进
Simulation Research on Flow Field Characteristics at Small Opening of Throttle Valve and Relation to Minimal Steady Flow Rate
节流阀小开度下流场仿真和最小稳定流量研究
UPQC Energy Flow Analysis and Capacity Calculation based on Minimum Energy Method
基于最小能量法UPQC能量流动分析及容量计算
A New Least Interference Path Algorithm for MPLS Traffic Engineering
一种新的MPLS流量工程最小干涉算法
An Algorithm for the Minimum Cost Max-flow with Limited Flow Between Two Notes in the Traffic and Transportation Network
交通运输网络中两个结点间有流量约束的最小费用最大流算法
Research on Minimum Stator Current Control of Asynchronous Motor Based on Power-fed AC Drive System;
交流传动能量互馈平台的异步电机最小定子电流矢量控制研究
Dynamic Minimum Interference Routing Algorithm Based on Profile in Traffic Engineering
基于流量特征的动态最小干扰流量工程选路算法
1. The maximum current speed and SSC occour during spring ebb, and the minimum one occours during neap flood.
1．最大流速和含沙量都发生在大潮落潮，最小流速和含沙量都发生在小潮涨潮。
Study on the Minimum Water Requirement of Eco-environment of the Yellow River Artery in Henan;
黄河干流河南段最小生态环境需水量研究
Application of the HydroGeoSphere to Determine the Minimum Discharge of the Baishi Reservoir;
HydroGeoSphere在白石水库最小下泄流量研究中的应用
Study on Capacitated Minimum Cost Flow Problem with Genetic Algorithm;
遗传算法求解带容量限制的最小费用流问题
NC programming of cam profile curves of constant flow pump by least squares
等流量柱塞泵凸轮轮廓的最小二乘法数控编程
The Calculation of AOF of Gas Well Based on Non-linear Least Squares Method
基于非线性最小二乘法的气井无阻流量计算
Application of Weighted Type Least Squares on Multiphase Flow Meter
最小二乘加权法在多相流计量中的应用
Improved research on wetted perimeter method to calculate minimum stream ecological discharge
对计算河道最小生态流量湿周法的改进研究
Minimum Instreaming Ecological Discharge by Using Improved Wetted Perimeter Method
用改进湿周法计算河道内最小生态流量