| 摘要 |
PROBLEM TO BE SOLVED: To provide an air proportional control boiler using a wind pressure sensor. SOLUTION: When the air quantity is decreased in controlling the gas supply quantity in proportion to the quantity of air sucked by the wind pressure sensor for proportionally detecting the air quantity using differential pressure, in order to solve the problem that the gas supply quantity is decreased to reduce the output of the boiler, the rotational frequency of a blower is controlled to keep the air quantity constant when the gas quantity is fixed to enable fixed rated output, whereby the air quantity proportional to the gas quantity can be always supplied to always supply the gas quantity and the air quantity required by the rated output so as to provide the advantage of heightening the combustion efficiency and restraining the discharge of harmful gas to the utmost, thereby preventing environmental contamination. COPYRIGHT: (C)2005,JPO&NCIPI
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