Light turbine blower model

Turbine blower is a type of centrifugal blower. The structure consists of an impeller, diffuser, and volute. Once the turbine blower malfunctions and shuts down, it will cause gas to be released, directly affecting ironmaking and steel rolling. In order to ensure the normal operation of the fan, an imported vibration monitoring instrument 2120 data collector is used to monitor and diagnose the pre-set parts of the fan according to the prescribed cycle. Analyze the problems that arise and develop preventive measures.Light turbine blower model​

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preventive measures

1. Feedback the above situation to the supplier and request improvement of the welding parts.

2. Strengthen the anti-corrosion of the fan rotor. After one cycle of operation, the fan must be inspected by removing the cover to check the corrosion of the high and low pressure blades. The blades should be inspected piece by piece and anti-corrosion treatment should be carried out.

During the standby period of the fan, fill the upper and lower cylinder spaces of the fan with nitrogen and maintain the fan rotor.

4. Adhere to the low-speed turning system to reduce the deflection of the rotor in the vertical direction.

Regularly conduct dynamic balance tests on the fan rotor.

Strengthen monitoring and diagnosis, immediately stop the machine for inspection if there is any abnormality, and eliminate the fault in its infancy.

​Vibration malfunction:

The fan and motor are connected by a coupling to transmit motion and torque. Misalignment is a common fault in fans, with 60% of fan failures related to misalignment. The misalignment fault of the fan refers to the alignment between the axis lines of the fan and the motor rotorsbearingThe degree of inclination or offset of the centerline. The misalignment of the fan rotor can be divided into coupling misalignment and bearing misalignment. After a misalignment fault occurs in the fan rotor system, a series of dynamic effects that are detrimental to the operation of the equipment will occur during the rotation process, causing coupling deflection, bearing wear, oil film stability, and shaft deflection deformation. This not only changes the mutual position of the rotor journal and bearing and the working state of the bearing, but also reduces the natural frequency of the shaft system, causing abnormal vibration of the fan and early damage of the bearing due to the force on the rotor and the additional force on the bearing, which is extremely harmful. For the misalignment fault of the fan, a laser alignment instrument can be used to solve it conveniently and quickly

Light turbine blower model​