二○○三年十月十四日目录一、矩形风管、管部件制作.............................................................1（一）矩形风管构造形式..........................................................................................1（二）施工准备..........................................................................................................2（三）施工操作步骤................................................................................................3（四）质量标准........................................................................................................6二、安装操作工艺.............................................................................8（一）安装形式..........................................................................................................8（二）施工准备..........................................................................................................8（三）安装操作..........................................................................................................8（四）风管安装施工后检测....................................................................................11（五）质量标准......................................................................................................12三、油漆及防腐施工工艺...............................................................13（一）施工准备........................................................................................................13（二）施工操作内容................................................................................................14（三）质量标准........................................................................................................15四、绝热工程施工工艺......................................................................15（一）施工准备........................................................................................................15（二）施工操作内容................................................................................................16（三）质量标准........................................................................................................16一、矩形风管、管部件制作（一）矩形风管构造形式1规定：①矩形风管以外边长为准。②风道以内径或内边长为准。2矩形风管常见的规格尺寸见表1表1边长mm边长mm边长mm边长mm边长mm120320800200040001604001000250045002005001350300025063016003500注：矩形风管长边与短边之比一般应不大于4：1。3风管连接采用咬口连接。4矩形通风管道的统一规格见表2。表2风管规格a×b(mm)法兰用料规格风管壁厚δ(mm)螺栓规格螺栓数量螺孔直径(mm)铆钉规格铆钉孔径(mm)铆钉数量120×120160×120160×160200×120200×160200×200250×120250×160250×200250×250320×160320×200L25×4L25×4L25×4L25×4L25×4L25×4L25×4L25×4L25×4L25×4L25×4L25×40.50.50.50.50.50.50.750.750.750.750.750.75M6×20M6×20M6×20M6×20M6×20M6×20M6×20M6×20M6×20M6×20M6×20M6×2066888888881010φ7.5φ7.5φ7.5φ7.5φ7.5φ7.5φ7.5φ7.5φ7.5φ7.5φ7.5φ7.5φ5×14φ5×14φ5×14φ5×14φ5×14φ5×14φ5×14φ5×14φ5×14φ5×14φ5×14φ5×14φ5.3φ5.3φ5.3φ5.3φ5.3φ5.3φ5.3φ5.3φ5.3φ5.3φ5.3φ5.3888888888810101中国人民解放军第五七零五工厂中国·沈阳320×250320×320400×200400×250400×320400×400500×200500×250500×320500×400500×500630×250630×320630×400630×500630×630800×320800×400800×500800×630800×8001000×3201000×4001000×500100...
