为解决高层住宅楼厨房排油烟系统的油烟污染问题，目前多采用变压式厨房排油烟共用管道系统。安装排气管道时先在其侧壁上预埋铁件，在楼板上焊接长度为“#的$”#6“角钢，再将角钢与预埋铁件点焊。通过某高层住宅楼的施工，我们发现此方法效果不好，原因是：.+/排气管道为钢丝 In order to solve the problem of soot pollution in the kitchen exhaust fume system of high-rise residential buildings, the common use of transformer-type exhaust fume sharing system of the kitchen is adopted at present. When installing the exhaust pipe, the iron pipe should be pre-embedded on the side wall of the exhaust pipe and the steel plate should be welded with the angle of $ ”# 6" Building construction, we found that this method is not effective, because:. + / Exhaust pipe for the wire