| 摘要 |
<p>A steam boiler system and method of operation which includes a steam boiler (10), a feed water inlet (12) to the boiler, a steam outlet (14) from the boiler, a blowdown outlet (16) from the boiler, and means to set the blowdown outlet to provide a blowdown rate which is a calculated proportion of the feed rate to the feed water inlet. As a special feature, an impurity sensor (40) is provided, but in the feed water conduit to the boiler.</p> |
