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What is the cause of the increased vibration of Sichuan rotary blower?

Category： Company News

time：2023-03-01

What is the cause of the increased vibration of Sichuan rotary blower?


(1) Design scheme: Sichuan rotary blower design is generally customized according to the fan usage scene, ambient temperature, exhaust air volume, air pressure and substance, while some enterprises have not completely selected the rotary blower model according to various factors, resulting in the following factors: unreasonable fan design, poor dynamic performance and vibration during operation; Unscientific structure, stress; the design speed ratio is close to or falls into the critical speed area; the calculation of thermal deformation is prohibited, resulting in poor temperature state.

四川回转鼓风机

(2) Production and manufacturing reasons: the manufacturer's quality standards for fans will also affect the operation of fans, such as: poor processing and manufacturing of parts and components, and insufficient precision; Poor parts and materials, insufficient compressive strength, production and manufacturing shortcomings; Dynamic balance equipment does not meet technical standards.


(3) Assembly and maintenance: The installation accuracy level of rotary blower plays a very important role in the operation of centrifugal fan. If the assembly precision does not meet the installation specifications, it will damage the operation of Sichuan rotary blower. In the fan installation process, there will be the following related factors, such as unreasonable mechanical installation, displacement of parts and large preload; Poor alignment of shafting system; The assembly clearance, excess profit and positional relationship of the equipment are not adjusted reasonably. The long-term placement of the motor rotor is unreasonable, which affects the dynamic balance accuracy. Failure to repair according to the technical specifications damages the original matching nature and precision of the equipment.


(4) the actual operation of the reason: in the use of rotary blower in Sichuan, the centrifugal fan maintenance, maintenance is good or bad, the rotary blower operation quality plays a key role. For example, the deviation of the allowable value of the process index and the abnormal operation of the equipment; The equipment operates under over-speed ratio and overload, which affects the working characteristics of the equipment. Runnerization or poor refrigeration; Partial damage and fouling of the motor rotor; Operation error in the whole process of startup and shutdown or speed adjustment, uneven thermal deformation or long stay in the critical area.


(5) Equipment deterioration: General machinery and equipment have a certain period of time in the process of use, and the equipment will change abruptly when reaching a certain period of time. The same is true for Sichuan rotary blower. Long-term operation leads to expansion of deflection value of motor rotor or deterioration of dynamic balance. Partial destruction, falling or cracking of motor rotor; Damage of parts, crevice corrosion or corrosion, etc. The bearing force of mutual matching surfaces deteriorates, resulting in insufficient clearance fit or falling off, destruction of fit properties and precision; uneven settlement of equipment foundation and deformation of equipment shell.


I hope the above explanation will be helpful to you. Our company has various fans. Welcome to consult.


Keywords： What is the cause of the increased vibration of Sichuan rotary blower?

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