| 摘要 |
<p>An improvement in a condensing furnace where gaseous products of combustion are ducted through fin tube condensers that act to heat incoming air. The improvement involves spraying water into the products of combustion upstream of the fin tube consider, so that the sprayed water droplets mix intimately with the products of combustion and are thus vapourized. In this manner, the combined water vapour and gaseous combustion products can condense in the fin tube condenser to create a liquid condensate of which the pH is closer to neutral than would have been the case in the absence of the sprayed water.</p> |
