What are the connection methods of spiral duct fan?
The common hoop type connection is to tie the end of the pipe into a drum bar, and the opening left at one end should be smaller. When connecting, insert the smaller opening into the larger opening according to the direction of air flow, clamp the outside with special spiral duct fan steel drag hoop, and then fix and tighten with bolts.
The two ends of each pipe are rolled into a drum, and one end and are reduced into a small mouth. The small mouth is the air flow direction inserted during installation. The steel wire traction belt is used to connect the two drums. After the steel pipe is tightly held, the fixing bolt is worn with earrings.
It is mainly used for the connection of steel plate round air duct and spiral air duct. Firstly, roll out the bulge reinforcement at both ends of each pipe section and shrink one end into a small mouth. During installation, insert the small opening into the large opening according to the air flow direction, and tightly connect the drum hoops at the two ends with steel hoops outside, and then thread bolts in the middle of the earrings for fixation and tightening.

It is mainly used for the connection between air duct and components (such as radiator, plenum side air supply outlet, etc.). During installation, both ends of the hose shall be sleeved outside the connected pipe, and then the hose shall be clamped tightly with a special soft clamp. The filter element is automatically cleaned without stopping the host and other operations. When the saturation resistance on the surface of the filter cartridge reaches a certain allowable value, the automatic cleaning function is turned on, and each filter cartridge is back blown and cleaned in turn during the operation of the host machine to ensure that the dust remover is always in good working condition.
Generally speaking, the connection modes of ventilation pipes mainly include hoop connection, plug-in connection, plug-in connection and hose connection. The plug-in connection is used for the connection of rectangular or circular air duct, the plug-in connection is used for the connection of rectangular air duct, and the hose connection is used for the connection between air duct and components. Therefore, its points are different and should be selected according to the specific actual situation.