A bogey without cooling water or adding boiling water to start the diesel engine and then add cooling water, will cause hot cylinder liner, cylinder cover and other important components due to sudden cold caused by burst or deformation; to the cold body 100 °C water It will also crack the cylinder head and body, and should be added when the water temperature drops to 60-70°C. Second, avoid the oil supply according to the provisions of the diesel engine should not be put on the decompression handle at the "work" position after the oil, but should be before the start of the throttle handle to the oil supply position. The harm that does not operate in accordance with this regulation is: wasting fuel; excess diesel will scour the wall of the cylinder, which will worsen the lubrication between the piston, piston ring and cylinder liner and exacerbate the wear; the flow of residual oil into the oil pan will dilute the oil and reduce the lubrication effect; Excessive combustion of diesel in the cylinder does not completely form carbon deposits. Three pull-car pull-start diesel engines start when the cold car oil is thick, which will aggravate the wear between the moving parts, thereby reducing the service life of the locomotive. 4. Avoid use of lubricant oil and fuel oil on schedule. In the cold weather, if you do not change the low viscosity lubricant and fuel in time, the diesel engine will be difficult to start. 5. Avoid use of open flame to bake the oil pan and start the fire at the inlet pipe. To prevent fire, apply slow fire and coal fire to bake the oil pan of the diesel engine at a certain distance, and slowly shake the oil shaft to make the oil evenly heated. So that all parts are lubricated. If the pilot fire starts at the inlet pipe of the diesel engine, the ash and hard debris generated by the combustion of the material will be sucked into the cylinder, which causes the intake and exhaust valves to close loosely and accelerate the wear of the cylinder. Sixth, the use of glow plugs, flame preheater glow plugs, and flame preheater heaters for long periods of time are all electric wires, and their power consumption and heat generation are very large. Long-term use can damage the battery due to rapid discharge. Can also burn out the heating wire. Therefore, the time for continuous use of the glow plug can not exceed 1 minute, and the time for each continuous use of the flame heater should be controlled within 20 seconds. Seven bogey directly add oil to the cylinder to add oil to the cylinder, although it can play the role of sealed pressurized warming, easy to start diesel engine cold, but the oil can not be completely burned, easy to produce carbon, so that the elasticity of the piston ring weakened, cylinder The sealing performance is degraded; in addition, the wear of the cylinder liner is accelerated, resulting in a decrease in the power of the diesel engine and making the starting more difficult, so that the engine oil cannot be directly added to the cylinder. Eight bogey directly inject gasoline into the intake pipe, the ignition point of gasoline is lower than that of diesel, and it is burned before diesel. Therefore, directly filling gasoline into the intake pipe will make the engine work rough and produce a strong knocking phenomenon. In severe cases, engine reversal may occur. Nine bogey avoids starting the engine on the diesel engine for a long time to work under the condition of low voltage, high current, it will damage the accumulator battery for a long time use. Its continuous working time shall not exceed 5 seconds; once it is not started, it shall be restarted every 15 seconds. Ten bogey just started on the high-speed operation When the diesel engine was just started, the temperature of the lubricant was low, and the fluidity was poor. The high-speed operation immediately resulted in rapid wear of the moving parts due to lack of lubrication. In severe cases, the burning bushes could hold the shaft.
Black And White Ultrasonic Diagnostic Equipment
It can be configured with a variety of variable-frequency probes to meet various clinical needs; dual probe interface, the probe can be freely switched; it adopts a number of international advanced digital image processing technology and software technology, such as dynamic broadband low-noise preamplification and dual-echo processing technology, multi-point dynamic focusing, dynamic variable aperture, dynamic filtering, gain compensation (TGC), frame correlation, DSC transform interpolation, etc., with a clear and delicate image. It is suitable for diagnosis and examination of abdomen, gynaecology, obstetrics, urology, blood vessels, heart, small organs and superficial parts.
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Mianyang KARAYSON Trading Co., Ltd , https://www.sckrayson.com