基于数字信号处理的锅炉“四管”漏泄监测系统

Monitoring System for Leakage of "Four Pipe" in Boiler Based on Digital Sign Process

自适应数字滤波器可以很好地去噪 ,将漏泄信号从广谱噪声中准确地提取出来 ,为准确、及时、可靠地预报锅炉“四管”漏泄提供了有效的手段。介绍自适应数字滤波的结构和噪声对消算法 ,并通过实践检验了它的正确性和实用性 ,为减少漏泄事故扩大造成的损失 ,发挥了重要的作用。

Adapting filter can remove noise, and exactly draw leakage sign from broad spectrum noise. It provides effective method for accurate, timely and reliable forecast'four pipe'leakage. Structure of Adapting filter and noise cancellation algorithm is introduced in this paper. And it's correctness and practicability is checked by practice. It gives important role to reduce losses caused by enlarged leak accident.