4-68-10CStainless steel fan

Use
W4-68-11No.6.3D high temperature blower used in high temperature gas conveying non corrosive, the highest temperature does not exceed 400 degrees, if the gas containing dust amount is larger, should be in the air inlet of the air machine equipment, dust removal efficiency is not less than 85% of the dust removal device, in order to improve the service life of the fan.
Form
This series fan is single suction cantilever, C or D transmission mode. From one end of the motor face, clockwise rotation of the impeller, known as the right whirlwind machine; counterclockwise rotation, known as the left cyclone.
Structural characteristics
1, the impeller with heat-resistant stainless steel welding, the impeller by static and dynamic balance correction, and overspeed test.
2, the shell is welded by the steel plate into the cochlea body, fixed on the bracket.
3, driven by the spindle, water-cooled bearing box and other components.

4, the use of integral support, strong vibration absorption, smooth operation.

Maintain
1, regular removal of the fan and gas pipeline dust, dirt and water and other impurities, and prevent rust.
2, the fan must be repaired when the power off, absolutely not allowed in the operation, the switch should be
Custody, in case of power transmission.
3, the thermometer and the sensitivity of the oil should be regularly checked.
4, in addition to the demolition and repair should be replaced after the lubricating oil, but also regular replacement of lubricating oil.
5, before and after each maintenance should be carefully recorded, inventory, check the number of tools and raw materials, in order to prevent forgetting
Inside the fan and piping.
6, fan test import and export direction within ten meters to the station.
7, installation, maintenance and commissioning personnel are strictly prohibited presence of onlookers.
Faults and causes
The main fault of fan:
First, the bearing box vibration.
1, the wind shaft and the motor shaft is not concentric, coupling skew.
2, the shell or air inlet and impeller friction.
3, the stiffness of the foundation is not strong enough.
4, impeller rivets loose or wheel deformation.
5, impeller shaft and shaft loose, coupling bolt loosening.
6, shell and bracket, bearing box and bracket, bearing box and seat and other connection bolts loose.
7, fan inlet and outlet pipe installation is bad, produce vibration.
8, rotor imbalance.
In 9, too small, the wind speed is too fast.
Two, bearing temperature rise too high.
1, bearing box vibration.
2, poor quality of lubricating grease, modification or filling too much, containing dust, sand, dirt and other impurities.
3, bearing box cover, seat bolts tight or too small.
4, the shaft and rolling bearing installation skew, before and after the two bearings are not concentric.
5, rolling bearing damage.
Three, motor current is too large and too high temperature rise.
1, when the intake valve or throttle valve is not closed strict.
2, the flow exceeds the specified value or pipe leakage.
3, the fan transport of gas containing viscous substances or temperature is too low, the gas density is too large.
4, the motor input voltage is too low or power single-phase power off.
5, coupling is not correct, too tight or uneven gap.
6, affected by the vibration of the bearing box.
7, by the parallel fan working condition deterioration or failure.
Ordering instructions
When ordering, please specify the type, the machine number, the transmission mode, the speed, the air volume, the pressure, the working temperature, the maximum temperature, the direction of rotation, the outlet angle, the type and the power of the motor.
If the machine is not in conformity with the given conditions, it can contact with the design department of our company to redesign.