During the operation of Roots blower, please check the following items and leave a record sheet, which will be very helpful for early detection or investigation of the causes of problems: power supply, voltage, current value, pressure, atmospheric temperature, exhaust temperature, vibration, noise, oil level, dirt level and belt tension.
Adjustment method of air volume: the outlet gate valve cannot be used to adjust the air volume, but the method of changing the rotation number and exhausting the atmosphere should be used. How to ensure the normal operation of roots blower during the maintenance of roots blower? Before starting the roots blower, carefully check whether there is any abnormality in all conditions of the roots blower, whether the oil tank is sufficient, whether there is unnecessary load in the piping, pay attention to the abnormal sound when starting, whether the belt tightness is appropriate, whether the rotation direction is normal, and whether there is any abnormal sound and abnormal heating of the roots blower during operation.
During operation, the bearing, lubricating oil temperature and current indication values must be checked frequently. When cooling water is used for fans, check whether the cooling water volume meets the specified requirements. When sealing the fan packing, check the sealing leakage. When the leakage is serious, replace the seal immediately to avoid safety accidents caused by dangerous gas leakage, and corrosion gas leakage will also damage the bearing.
When Roots blower is shut down, it must be depressurized first and then shut down. In case of shutdown with load or sudden power failure, the high-pressure gas in the system at the outlet side of the fan will quickly flow to the inlet side of the low fan (that is, generally speaking, backflow), thus causing the high pressure gas to drive the fan impeller to accelerate and reflect the rotation speed of the fan impeller to become higher and higher. When the speed of the impeller reaches its limit speed, it will cause a vicious accident of collision and smashing between the impeller and the casing. Especially for users transporting flammable and explosive gases such as fertilizer plants, they should operate strictly.
Daily routine inspection:
(1) Check the operation and development of the centrifugal fan according to the social contact condition of the Roots blower housing, such as the vibration technology level;
(2) Check whether the belt driven centrifugal fan can work normally and whether satay is cracked and loose;
(3) Thoroughly inspect the muffler and flexible conductive connection;
(4) Identify the damage and abnormal problems that can be identified by the enterprise.
Weekly routine inspection:
(1) Identification of noise and motor temperature;
(2) Check whether centrifugal blower impeller is a design standard;
(3) Check the noise and temperature of rolling bearing;
(4) Check the monitoring system, the temperature and vibration device are abnormal.
I believe that after reading the above contents, you should also understand the contents of the daily inspection of Roots Blower. I hope it will be helpful to you.
Text term label: Roots blower
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