Method for setting up jet fans for tunnels

The foundation of the tunnel fan is firmly horizontal, with a height of 200mm.

2. The tunnel fan and air duct are connected through a soft connection (flexible material and non combustible) of the fan, with a length of not less than 200mm, and the pipe diameter should be the same as the inlet and outlet size of the fan. To ensure that the soft connection of the fan does not twist or deform during system operation, it must be installed on appropriate fasteners. For the canvas hose set at the suction cup end of the fan, in order to prevent the fan from being sucked in during operation and to reduce the cross-sectional size of the canvas hose, it can be slightly tightened.

3. The steel support of the tunnel fan must be fixed on the concrete foundation, and a rubber dumping pad must be added between the fan and the foundation steel support. All the components of the air supply fan and motor are installed on a full steel bracket, and the steel frame is installed on the vibration pad on the upper part of the base plate. The vibration pad is preferably a porous rubber plate.

4. The diameter of the outlet of the tunnel fan can be increased, but cannot be reduced. Finally, the socket should be equipped with insect proof nets, and a rain crown should be added when tilted to the upper blowing outlet. In order to set 2 precautions for Duct support, the foundation of the fan is horizontally firm, and the foundation height is 2200mm

5. The tunnel fan is connected to the air duct through a soft connection (flexible material and non combustible) of the fan, with a length of not less than 200mm, and the pipe diameter is the same as the inlet and outlet size of the fan. To ensure that the soft connection of the fan does not twist or deform during system operation, it must be installed on appropriate fasteners. For the canvas hose set at the suction cup end of the fan, in order to prevent the fan from being sucked in during operation and to reduce the cross-sectional size of the canvas hose, it can be slightly tightened.

6. The steel support of the tunnel fan must be fixed on the concrete foundation, and a rubber dumping pad must be added between the fan and the foundation steel support. All the components of the air supply fan and motor are installed on a full steel bracket, and the steel frame is installed on the vibration pad on the upper part of the base plate. The vibration pad is preferably a porous rubber plate.

7. The diameter of the outlet of the tunnel fan can be increased, but cannot be reduced. Finally, the socket should be equipped with insect proof nets, and a rain crown should be added when tilted to the upper blowing outlet.