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A METHOD AND APPARATUS FOR MONITORING AND CONTROLLING THE STABILITY OF A BURNER OF A FIRED HEATER
A METHOD AND APPARATUS FOR MONITORING AND CONTROLLING THE STABILITY OF A BURNER OF A FIRED HEATER
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机译:一种监测和控制火炉燃烧器稳定性的方法和装置
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摘要
The invention includes method and apparatus for controlling the stability of a burner, preferably a low NOx burner, of a natural draft heater. The method includes measuring the draft over a time period and generating a measured output from which a draft function is determined that defines the relationship between the draft and time during the time period. A value for the burner stability is defined that is representative of a stable burner operation. The draft function is compared to the stable burner value to determine a differential value, and the operation of the fired heater is adjusted in response to the differential value. The apparatus includes means for measuring the draft over a time period and means for generating a measured output from which a draft function is determined that is proportional to the cyclic variation of the draft during the time period.
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