The position of the axial flow fan should be close to the ridge line near the ridge line. When positioning, the waterproof substrate should be placed on the roof, and the edge of the inclined plate will be embedded in the gap below the metal cover plate of the ridge 10cm.. Then use the roof cutting machine to complete the cutting of the hole and trim the edge. Cut the insulation cotton in a rice shape with a sharp blade, remove some of the insulation cotton, and then heat insulation cotton and aluminum foil into the steel plate and insulation cotton.
Axial flow fans, which are widely used, are airflow in the same direction as the blades, such as fans, air conditioners, fans, and axial fans.
It is called "axial flow" because the gas is parallel to the axis of the fan. Axial flow fans are usually used in situations where the flow rate is high and the pressure requirements are low. The axial fan fixed position and moved the air. Axial fan is mainly composed of fan impeller and shell, and its structure is simple, but the data requirements are very high.
The reasons for the severe vibration of axial-flow fan are as follows:
1. The friction between the casing or the inlet and the impeller.
2. The fan shaft is not parallel to the motor shaft, and the pulley is misplaced.
3. Impeller rivet loosening or impeller deformation.
4. Foundation rivet loosening or impeller deformation.
5, leaves are accumulated ash, dirt, abrasion or shaft bending to make the rotor unbalanced.
6, impeller shaft disc hole and shaft loose.
7, the connection between the shell and bracket, bearing seat and bracket, bearing seat and bearing cap is loosened.
8. Poor installation and resonance of the inlet and outlet pipes of fans.
Place waterproof adhesive tape on the joint between the waterproof plate and the roof plate. Place waterproof adhesive tape on the top of both sides of the crest, and use waterproof silica gel between the plug and color steel plate to tear off the upper layer of paper. Use at least 10 self tapping screws or rivets to fix the waterproof base on the roof.
The neck of the variable angle pipe is placed on the base plate, and the rotatable part of the variable angle pipe neck is rotated. The horizontal 90 degree angle is adjusted by the horizontal instrument to make the top of the variable neck pipe level.
At least four self tapping screws are used to fix the neck of the variable angle pipe. The metal pin and the aluminum rivet are used to fix the upper and lower two rotation parts of the changing pipe neck. Meanwhile, attention should be paid to aligning the original marking mark. The four supporting arms of the turbine head should be stuck in the trench, and then the turbine head should be fixed on the neck of the horn with four screws.
Tags: Axial fan Smoke exhausting fan Exhaust fan