1、螺旋通风管道卷箍式连接各管道两端冷轧成鼓筋，并使其一端缩成开口.设备时，按气旋方位将口子插入小口内，在外边缘用钢质拖箍将2个管端鼓紧抱在一起，然后将2个管端鼓紧固在耳片上，紧固在固定不动的情况下，用钢质拖箍将2个管端鼓紧固在耳片上。
1. Spiral ventilation pipes are connected by hoops. Both ends of each pipe are cold rolled into drum bars, and one end is shrunk into an opening When installing the equipment, insert the opening into the small opening according to the cyclone direction, tightly hold the two pipe end drums together with steel drag hoops at the outer edge, and then fasten the two pipe end drums on the ear piece. When they are fixed, fasten the two pipe end drums on the ear piece with steel drag hoops.
2、螺旋通风管道的插接式连接关键用在矩形框或环形风管的连接上，先制好连接管再插入两侧的风管，再用自攻螺钉或拉柳钉将与密不可分。
2. The plug-in connection of spiral ventilation duct is mainly used for the connection of rectangular frame or annular air duct. First make the connecting pipe, then insert the air duct on both sides, and then use self tapping screw or pull willow nail to connect it with the air duct.
螺旋通风管道插入式连接插条式连接在矩形框风管的两侧分别插入不同方式的插条，然后压实。
Spiral ventilation duct plug-in connection plug-in connection plug-in connection inserts in different ways are inserted on both sides of the rectangular frame air duct, and then compacted.
螺旋通风管道塑料软管式连接塑料软管式连接关键用于螺旋通风管道和部件(如散流器静压箱侧正压送风口等)相接设备时，软臂两侧套在连接管外，然后用特制软卡将塑料软管夹紧
Plastic hose connection of spiral ventilation pipe plastic hose connection is the key. When the spiral ventilation pipe and components (such as positive pressure air supply outlet on the side of diffuser static pressure box, etc.) are connected, both sides of the soft arm are sleeved outside the connecting pipe, and then the plastic hose is clamped with a special soft clamp
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