Abstract:
In this paper, we make a brief overview of the maintenance procedures and condition monitoring methods. The WKL32 model high pressure pump made in Iran Pump Co, be evaluated by the vibration analysis and sound tests, based on the proactive maintenance procedure. We study the effect of electric current leakage which is made of using the pump chassis as the welding connection cable (NULL) and check the effect of the ambience temperature on the grease lubricant viscosity and on the corrosion of the pump’s bearings. Finally, we make appropriate cures according to the proactive maintenance procedure.
Machine summary:
Effect of Ambience Temperature and Electric Current Leakage on Vibration of High-Pressure Pump Behrang Sharafi1, Valiollah Panahizadeh Rahimloo2 1 , Amir Refahi Oskouie3 1,2,3- Department of Mechanical Engineering, University of Shahid Rajaee Teacher Training University, Tehran, Iran.
We study the effect of electric current leakage which is made of using the pump chassis as the welding connection cable (NULL) and check the effect of the ambience temperature on the grease lubricant viscosity and on the corrosion of the pump’s bearings.
Keywords: High Pressure Pump, Corrosion, Electric current leakage, Air temperature, Proactive Maintenance.
But, due to operational conditions of the engine-pump system, the temperature of the bearing's external shell shouldn't be more than 90°C.
Figure 8- Destructive effects of the electric current leakage on the bearings The cure of the second cause: When a bearing damage from the electrical corrosion has begun, increased the noise levels, reduced the lubricant effect and excessive the vibration will decrease the bearings life drastically.
This layer protects the ball bearings against surroundings damages such as the electric current leakage and the ambience high temperature According to the table 1, the Probability of galvanic corrosion, alloy defeat and intergranular corrosion can be considered as options for corrosion in the ball bearings.
), and due to the materials of external and internal rings, balls and shelves which are the same and made of alloy steel, Probability of the galvanic corrosion in the pump's bearings is canceled.
A small mistake from the welding and machinery installation teams led to the electric current leakage and applying the high ambient temperature on the wkl32 pump.