INA turbocharger bearing temperature rise of preventive measures

The cause of the bearing temperature rise: 1, the supercharger bearing cooling water breakthrough. 2, oil degradation, oil, or run their own dirty oil degradation, such as in oil-in-water, will cause the oil, with the increasing acidity, can reduce oil lubrication, import bearings, bearing temperature. When the INA bearing temperature, first determine whether the fault, if they really rise, should be dealt with as follows: 1, check the cooling water pressure, flow and pipeline system is normal. To filter may be blocked and can't handle, it can stop the process validation, and then put into use. 2, check the governor oil pressure, oil pressure may cause if the cooling water, hydraulic valve closed. 3, if there is a difference, to check whether there is abnormal sound supercharger bearing and bearing test. 4, take sample to observe the change of oil color, and test, to see if worse. If confirmed that the deterioration, should change new oil to turn it off. 5, check the oil standard oil level is normal, if not normal, check the water tank drain valve is closed. If closed, should add oil, if it is gasket permeability, should stop treatment. When we use imported bearings, if one is found at high temperature, and then quickly stop the operation of the equipment, and then find out the reasons and provide a solution, in accordance with the above treatment, but may be due to different reasons, the supercharger bearing heating, made in a different way to solve, so we should have the certain conditions, and technical personnel, with the help of complete. Reasonable selection and filling lubricating oil. In use process want to choose the lubricating oil, the oil film surface tension small, make the formation of air bubbles studied. the impact of oil flow when the corresponding decreases, and can effectively prevent cavitation INA bearing; Lubricating oil viscosity grade, not increased at lest increase bearing coking tendency; Engine oil level of lubricating oil must be within the scope of the standard, lubricating oil and gas with tools must be clean and prevent the entry of any dirt and water, at the same time ensure that the sealing effect of the various parts of the engine. Pay attention to the regular inspection and replacement lubricating oil; Place for filling lubricating oil should be no pollution, no dust, prevent the intrusion of all pollutants; Different quality, different levels and different types of viscosity lubricating oil mixture, lubricating oil filling the settling time before the general should not be less than 48 h. Correct use and maintenance of the engine. Installing a bearing, should be in the shaft and the movement of the turbocharger bearing surface coated with grades clean engine oil. Turbocharger bearing after refitted, before starting the first should be shut off fuel switch, use the starter machine engine idling several times, when the engine oil pressure gauge, open the fuel to switch, after I have a show and put gas in low speed, start the engine in motion. Idle running time is not more than 5 min. Be new and overhaul engine break-in period, after the ban surge vastly decrease in load for a long time period and high speeds; End of the engine full load for a long time after work, can't stop immediately, must let the engine to idle after 15 min in a low speed to stop, or internal heat is not to go out. Strictly control the locomotive starting temperature, increase the machine delivery time. In winter, in addition to the strict control of locomotive starting temperature, fuel supply time should add up the machine, to ensure the oil to the various parts of the diesel engine friction pair, can reduce diesel engine machine the friction pair of mixed friction. Oil filter replacement. When the pressure difference before and after the oil filter to 0. Replace 8 mpa, namely, at the same time, in order to ensure the oil filtration effect, regular replacement oil filter, reduce the impurity content in the oil. Strengthen the oil filter, crankcase ventilation equipment cleaning and maintenance, according to the specifications timely replacement filter; Guarantee the normal work of the engine cooling system, control the engine to normal temperature, prevent radiator 'boiled', it is strictly prohibited without cooling water drive; Correct use fuel, accurately adjust with gas phase and the ignition timing and so on, to prevent abnormal combustion engines: to have the condition of crankshaft and INA bearings technology inspection and adjustment work. Oil iron spectrum analysis on a regular basis, reduce the accident, combined with the oil iron spectrum analysis, early detection abnormal wear, according to the oil pattern of iron spectral analysis, accurate determination of abrasive components and parts may occur, nip in the bud, to avoid grinding burn axis accident.