For nitrogen compressor bearing failure phenomena, causes and treatment

The bearing network ( Hereinafter referred to as:) Common to share, nitrogen compressor bearings and bearing fault imagination and reasons of the failure of treatment. Nitrogen compressor bearing failure phenomenon: here refers to the inside of the nitrogen pressure machine spindle radial bearing and thrust bearing combination tile serious wear and tear, spindle radial wear area of 50%, thrust tile at high temperatures has burned into black, thrust bearing clearance with a feeler gauge test, found that deviation, the west no clearance, clearance on the east side of 0. 35 mm, as shown in figure below 1, 2, 3. Figure 1 nitrogen compressor motioned tutu 2 thrust bearing wear trace figure 3 main shaft tile wear trace nitrogen compressor bearing failure reason: main reason has the following several aspects: 1) Bad lubrication. (1) the main oil pump damage, cause for oil pressure drop. (2) the entrance to the filter clogging. (3) lube oil road congestion. 2) Oil system is not clean. (1) set of oil washing is unqualified. (2) there are particles into. (3) lube oil contaminated, loss of lubrication and cooling effect. 3) Between main shaft and shaft neck is not qualified. 4) Motor rotor magnetic center right, with the compressor on the bad. 5) Compressor crankshaft and connecting rod installation is unqualified, horizontal or vertical degree of error is too large. 6) Motor thermal expansion result in axial force increases, more than thrust bearing capacity, damage. And the nitrogen pressure machine Lord bearing and thrust bearing wear failure reason: the gap between the flywheel and coupling half adjustment is undeserved, cause the connection when driving the crankshaft after unilateral smaller thrust clearance in load operation after a period of time, due to the motor temperature, the motor shaft axial thermal deformation, cause the compressor crankshaft thrust gap narrowed, until compressive thrust bearing, thrust bearing damage and temperature rise sharply. Thrust bearing wear of the heat leads to the deterioration of the corresponding spindle tile lubrication conditions, further cause loss of spindle. Nitrogen compressor bearing fault handling: 1) Dismantle all the rotating parts, check the spindle tile, the big tile, crosshead pin friction parts such as whether there is a burning phenomenon; 2) Check whether the line flow; 3) The damage of the surface of the journal manual grinding processing, smooth sleek; 4) Replace the damaged bearing and spindle, pay attention to adjusting the spindle tile gap; 5) Check bearing clearance; 6) Motor readjust for the rotor of motor is located in the center of magnetic force state, the crankshaft in the thrust clearance center position.