发明名称 |
A METHOD FOR MONITORING AND CONTROLLING THE STABILITY OF A BURNER OF A FIRED HEATER |
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. Further included is means for comparing the draft function to a defined burner stability value representative of a stable burner operation to determine a differential value and means for adjusting the operation of the fired heater in response to the differential value. |
申请公布号 |
EP1800058(B1) |
申请公布日期 |
2016.06.22 |
申请号 |
EP20050803970 |
申请日期 |
2005.10.12 |
申请人 |
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. |
发明人 |
HAMILTON, WILLIAM LARRY;JOHNSON, GREGORY LYNN |
分类号 |
F23D14/72;F23L11/00;F23N1/04;F23N5/18;F23N5/24 |
主分类号 |
F23D14/72 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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