Generators are used in many places in our life, such as hospitals, communications, mining, banks, oil fields, railway stations and other places related to people’s livelihood.Generators are essential equipment, both for providing electricity and as a reserve.The proper starting of the generator can ensure its power supply time and stable operation.Today, Sunrich Xiaobian to tell you about the 11 most afraid of diesel generators “life reduction” start, I hope to be helpful to you.
Incorrect Start Mode 1: Increase the throttle start
Please do not fuel the door when the generator is starting.Just put the throttle in the idle position.Some operators want a diesel generator to start quickly, filling the door hard before or during startup.The hazards are as follows:
① Fuel waste, reduce lubrication effect.Excess diesel oil will wash the cylinder wall, so that the lubrication between the piston, piston ring and cylinder liner deteriorates and aggravates wear;The remaining oil flowing into the oil pan will dilute the oil and reduce the lubrication effect;Too much diesel in the cylinder is not burned completely and carbon deposition occurs.
② The speed of diesel generator may rise rapidly after the big throttle starts, which will cause greater damage to the moving parts (aggravating wear and tear or causing cylinder pulling faults).
Error starting mode 2: oil and fuel oil are not changed according to the season
In hot season, please use high viscosity oil and fuel;In cold weather, use low viscosity oil and fuel oil.Otherwise, the generator will be difficult to start or not start at all.Even a successful forced start could cause incalculable damage to a diesel generator.
Error starting mode 3: ignition starting at the intake pipe
When starting a diesel generator, do not place it at the intake pipe.Otherwise, the ash and hard debris generated by material combustion will be sucked into the cylinder, causing the inlet and exhaust door to be closed loosely and the cylinder to be pulled.
Wrong Start Mode 4: Bake oil pan over an open flame
Heating method of oil in oil pan: use special heater (or steam).During the heating process, please slowly turn the oil shaft, so that the oil is heated evenly, so that all parts are lubricated.The wrong use of open fire baking oil pan, easy to cause local deformation of oil pan or oil deterioration in the oil pan.
Wrong start mode 5: sudden start with boiling water or start without water
(1) According to the principle of thermal expansion and cold contraction, the boiling water of about 100℃ is added to the cold body before the generator starts, which will crack the cylinder head, body and cylinder liner and other parts. Warm water of 60-70℃ should be added.(2) diesel generator without cooling water start will make cylinder assembly, cylinder head and the body and other parts of the temperature rise sharply, then add cooling water, will make hot cylinder liner, cylinder head and other important parts due to sudden cold caused by cracking or deformation.
Wrong start mode 6: directly add the oil to the cylinder
Oil can not be completely burned, easy to produce carbon deposition, so that the elasticity of the piston ring is weakened, the sealing performance of the cylinder is reduced.It will also accelerate the wear of the cylinder liner, resulting in a drop in the power of the generator, making it difficult to start the generator.
Incorrect start mode 7: add gasoline directly to the intake pipe
Gasoline has a lower ignition point and burns before diesel.Therefore, the direct injection of gasoline into the intake pipe will make the diesel generator work rough and produce a strong knock cylinder phenomenon, serious diesel engine reversal will occur.
Error starting mode 8: long term use of electric plug or flame preheater
The electric heating wire is the heating element of the electric plug or flame preheater.Its power consumption and heat are very large, long-term use will damage the battery due to rapid discharge, but also burn out the electric heating wire.Suggestions: the continuous use time of electric plug should not exceed 1min;The continuous service time of flame preheater should be controlled within 30s.
Wrong start mode 9: avoid long time continuous start
The starting motor on the diesel generator works under the condition of low voltage and high current, and long time use will damage the battery.Continuous working time shall not exceed 10s;A start is not good, should be 15s to start again.
Wrong Start Mode 10: Excessive use of ether
Diethyl ether can effectively improve the starting performance of diesel engines.However, excessive use will cause abnormal damage to the cylinder assembly and cylinder head of diesel engines.At the same time, it will greatly shorten the service life of diesel generators.
Error starting mode 11: strong cold trailer start
When the diesel generator is forced to start the trailer under the condition of cold running and high oil viscosity, the wear between the moving parts of the diesel engine will be aggravated, thus reducing the service life of the diesel engine.
After reading the above 11 diesel generator starting methods, do you think they are some details of the operation attention points, everyone more or less will be one of them.So, if you want to extend the life of a diesel generator and keep it running steadily, detail trumps everything.Yangzhou shengfeng power generation equipment plant: independent research and development of complete sets of diesel generator sets.At the same time, we can provide customers with professional services such as unit capacity selection, machine room design, technical installation guidance and commissioning.