<p>有以下的作用<br></p> <p>(1)风机可以吹扫燃气,燃气有危险,把它吹走</p> <p>(2)有些燃烧机是助燃风燃烧机,需要空气和燃气达到一定比例燃烧</p> <p><a href="https://iknow-pic.cdn.bcebos.com/4afbfbedab64034fc3fcdd7bbfc379310a551d9d" target="_blank" title="点击查看大图" class="ikqb_img_alink" rel="nofollow noopener"><img class="ikqb_img" src="https://iknow-pic.cdn.bcebos.com/4afbfbedab64034fc3fcdd7bbfc379310a551d9d?x-bce-process%3Dimage%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_jpg" esrc="https://iknow-pic.cdn.bcebos.com/4afbfbedab64034fc3fcdd7bbfc379310a551d9d"></a></p>