一次风测量的流场优化改造及不同风门开度下的验证  

Flow Field Optimization and Verification of Primary Air Measurement at Different Damper Openings

作　　者：崔体磊 刘海峰 黄敏智 CUI Ti-lei;LIU Hai-feng;HUANG Min-zhi(Guoneng Chenjiagang Shentou Power Generation Co.,Ltd.)

机构地区：[1]国能陈家港发电有限公司,江苏盐城224000

出　　处：《电站系统工程》2025年第2期36-38,共3页Power System Engineering

摘　　要：采用CFD数值模拟和试验验证的方法,对一次风道的流场特性进行了分析和优化,提出了一种基于导流板、均流板和混合器的流场优化方案。研究发现,冷热一次风门开度对流场分布有显著影响,较小开度下风门对一次风起到扰动作用,一定程度上可以改善测量准确性,通过流场优化改造,实现了不同风门开度下一次风的准确测量。CFD numerical simulation and experimental validation is employed to analyze and optimize the flow field characteristics of the primary air duct.A flow field optimization scheme based on deflectors,flow equalization plates,and mixers is proposed.The study finds that the opening degree of the hot and cold primary air dampers significantly affects the flow field distribution.At smaller openings,the dampers disturb the primary air flow,which can improve measurement accuracy to a certain extent.Through flow field optimization and modification,accurate measurement of primary air at different damper openings is achieved.

关 键 词：一次风 流场优化 CFD数值模拟 风门开度 

分 类 号：TK268[动力工程及工程热物理—动力机械及工程]