What Are The Causes Of Water Pump Vibration?
As a result, there are many reasons for vibrating the unit and the pump building building. There are both connections and interaction between some factors. In summary, there are mainly the following four reasons.
1. Electricity
The motor is the main equipment of the unit. The internal magnetic imbalance of the motor and the disorders of other electrical systems often cause vibration and noise. If the asynchronous motor is running, the fixed rotor intervals of the rotor intervals of the fixed rotor tooth harmonic flux interaction, or the large synchronous motor is in operation, the fixed rotor magnetic center is inconsistent or the air gap is poor in all directions. More than the allowable deviation value, etc., can cause the motor to vibrate periodic vibration and emit noise.
2. Mechanical aspect
Electricity, crude production, poor installation quality, poor unit axis, orientation of the unit of installation, the inferiority of the unit, the pump of the parts are poor, the mechanical strength and stiffness of the parts are poor, the bearing and sealing components are worn, and the critical speed of the pump and the unit of the unit Resonance that has always been caused by the inherent frequency, etc., will produce strong vibration and noise.
3. Hydropower
The flow rate and pressure distribution of water pumps are unevenly distributed, and the pressure pulse of the liquid, liquid winding, partial flow, and flowing flow of the pump inlet and export work, non -fixed amount of work conditions, and water pump etching caused by various reasons are common. s reason. The dynamic transitions caused by the dynamic transition of water pumps and stops, valve opening and closing, changes in operating conditions, and emergency shutdown of accidents and the role of water hammer in the water pipeline caused by dynamic transitions, which often cause vibrations in pump rooms and units.
4. Hydropower and other aspects
The unit's water intake duct design is unreasonable or uncomfortable with the crew, the depth of the water pump is not submerged, and the order of the crew of the unit and the order of stopping the machine will worsen the water inlet conditions, generate vortex, and induce the vibration of the crew or the pump room. At the beginning of the crew that destroys the siphon vacuum, the air of the horn peak section is difficult to form a siphon time for a long time; The reasons of uneven sinking of water pumps and motors or poor rigidity of the foundation will also cause the unit to vibrate.
