Some boilers may affect normal operation after installation of dust removal equipment and waste heat utilization equipment. In order to overcome the insufficient pumping force caused by dust removal equipment and waste heat utilization equipment of small boilers below 4T / H, a positive pressure in the furnace appears to affect the combustion of the boiler And the phenomenon of normal operation, so the design and trial production of high-pressure, high-efficiency Y6-30-12 boiler induced draft fan.
Its performance and the electric motor are as follows:
1. The blade of this type of induced draft fan adopts backward straight blades. The contact point between the impeller and the air inlet is a streamlined transition, so the induced draft fan is not sticky, the gaseous efficiency is high (82%), and the noise is low. About 85 decibels, when connected to the flue system, the thermal state can be reduced by 2 to 5 decibels.
2. The fan can also be used under the condition that the flue gas temperature does not exceed 250 ¡ã C, so the impeller and the casing are made of thicker steel plates to increase the strength and wear resistance at high temperatures. Impeller wall plates and blades are riveted for balance and repair. The main shaft is made of 45 # high quality carbon steel. The bearings are rolling bearings. There is sufficient volume in the bearing box to place cooling oil. The bearing box is equipped with an oil level indicator. In order to ensure normal operation, the transmission mode adopts V-belt drive.
The detailed performance parameters of this product are as follows:
(rpm) Speed (rpm)
Pa Full pressure Pa
m 3 /h Air volume m 3 / h
kw Motor power kw