Burning condition diagnosing method

Abstract

Abstract PURPOSE:To monitor and diagnose continuously the burning condition by a method wherein at least two wave length emission quantities or luminance distributions are detected from a flame under a boiler operation condition, then the correlation between said two factors is obtained. CONSTITUTION:An emission of a flame 3 detected by an optical fiber 5 which is protected by a cooling device 4 is distributed to plural passages by utilizing a half miller 6. Each specific wave length light is extracted from the distributed light by utilizing band-pass-filter 7, 7' having respectively different permeable wave length. The specific wave length lights are converted to electric signals with light receiving elements 8, 8', then inputted to integrator 9, 9'. Thus, different wave length light volumes Wlambda1, Wlambda2 are obtained. A correlation value P1 obtained from Wlambda1, Wlambda2 with a calculating device 11 is outputted to a comparator 12, then compared and verified with the burning condition previously stored in a memory device. Thereby, the burning condition is diagnosed precisely, accordingly, the accomodate process can be indicated.

Inventors

• 👤 Mitsuyo Nishikawa
• 👤 西川　光世
• 👤 Nobuo Kurihara
• 👤 伸夫 栗原
• 👤 Kenichi Soma
• 👤 憲一 相馬

Bibliographic Details