汽轮机阀门流量特性曲线分析及优化

摘要

If the flow characteristic of valve is not corresponding to the practical situation, it will influence The ability of response of the Automatic Generation Control (AGC) and the primary frequency, then seriously affect the safety and economy in power plant. This paper is based on valve characteristic experiments of one thermal power unit in Ningxia province, mainly introduces the experiment process, valve characteristic curve adjustment and the result comparison after the scheme carried out. As result of this optimization, unit has been greatly improved on load control, AGC response and throttling.%汽轮机阀门流量特性与实际流量不符合,会影响机组自动发电量控制(简称AGC)响应能力与一次调频的能力,严重影响电厂安全、经济性.本文针对宁夏某火电机组进行阀门特性实验,主要介绍了实验过程、阀门特性曲线整定以及方案实施前后对比.优化后机组在负荷控制、AGC响应和节流方面得到很大提高.