In order to avoid diesel generator set shutdown due to long-term use, if the unit is not used for a long time, you should pay attention to the following points: For reference only ( Response from Fujian Yanan Electric )
1. Diesel power generation The air inlet of the machine should be sealed to prevent dust pollution from damaging the air filter element;
2. The circuit breaker must be closed. ensure the safety of the electrical circuit and the generator;
3. Diesel generator Disconnect the positive and negative terminals of the starter battery and charge the battery to maintain sufficient power;
4. Add sufficient antifreeze to the radiator to prevent the engine from rusting or freezing during cold seasons;
5. The diesel generator room should be kept dry, clean, anti-theft and fireproof during storage. the generator;
6. Fuel in filtere fuel from the diesel generator and the fuel in the engine oil passage should be discharged as much as possible to prevent moisture in the fuel from causing fuel injection. parts rust and seize; for reference only (Reply from Fujian Yanan Electric)
7. When the diesel generator is not used for a long time, all parts should be discarded and used with used lubricating oil (engine). oil) to prevent used engine oil from deteriorating and thickening. If it fails to lubricate the engine, fill it with new oil to the specified mark.
If the filter element of the air filter is clogged or the resistance to air passage increases due to quality problems, the diesel engine will suffer from insufficient air intake. If the amount of air entering the cylinder is reduced, the fuel mixture will become inappropriate (usually the mixturee is too rich) and the direct result will be incomplete combustion of the fuel injected into the cylinder. At that time, the diesel engine can. suffer from insufficient power and black smoke is emitted from the exhaust. What are the effects of a clogged diesel generator air filter? The following is a simple analysis of the power in the wing.
The main components of diesel engine intake system are: air filter, intake pipe, compressor, intercooler, intake manifold, etc. These parts are mainly responsible for diesel engine breathing problems. The air intake system has a great impact on the power performance of the diesel engine. If the air intake is insufficient, it will cause indigestion of the diesel engine, and if the air intake is dirty, it will cause early abnormal wear of the diesel engine; engine.
1. Air filter factor. The foThe function of the air filter is to filter dust and impurities from the air, and to send clean air (or a combustible mixture of air and fuel) into the combustion chamber to reduce friction between the piston and the cylinder liner, between the piston. group and the valve. Wear between games. In addition, it also has the function of suppressing diesel engine intake noise.
If the filter element of the air filter is clogged or the resistance to air passage increases due to quality problems, the diesel engine will suffer from insufficient air intake. If the amount of air entering the cylinder is reduced, the fuel mixture will become inadequate (usually the mixture is too rich) and the direct result will be incomplete combustion of the fuel injected into the cylinder. At that time, the diesel engine can. suffer from insufficient power and black smoke is emitted from the exhaust.
2. Facteurs of the inlet pipe. There is usually a section of flexible rubber hose connecting the air filter to the diesel engine intake manifold (for a supercharged diesel engine this is the compressor air inlet).Connecting the pipes. If the hose is flattened or peeled internally and damaged for any reason, air flow will be affected and the result will be the same as a clogged air filter. This will also cause the diesel engine to have insufficient power due to insufficient air intake.
Diesel generator air filter inspection method
The air filter is a device that removes particulate impurities in the air. If the filter loses its function, it will affect the piston and cylinder. Friction can cause significant traction on the diesel generator cylinders.
1. Open air intake method. When the engine still emits black smoke when not overloaded, the air filter can be removed. If the black smoke disappears at this time, it indicates that the resistance of the air filter is too large and needs to be dealt with in time. smoke always emits, it means some other reason, it is necessary to identify the cause and eliminate it in time, such as poor fuel injection atomization, poor fuel supply and distribution of gas, low pressure in the cylinders, unqualified valve spring, change of shape of the combustion chamber and combustion of the cylinders, etc.
2. Water column elevation method. Prepare a basin of clean water and a transparent plastic pipe with a diameter of 10 mm and a length of about 1 meter. When the diesel generator set is operating normally, insert one end of the plastic pipe into the water basin and the other end into the water basin. the air intake pipe. Observe the height of thea surface of the water absorbed into the plastic pipe. The normal value is 100 to 150 mm. If it is greater than 150mm, it means that the air intake resistance is too large, and it should be solved in time; if it is less than 100mm, it means that the filtration effect is poor or there is an air short circuit; , and hidden dangers must be found and eliminated.
3. Cut the air method. In normal operation, if the air inlet part of the air filter is suddenly covered, the speed of the diesel engine should drop quickly until it turns off, which is normal. If the speed does not change or decreases slightly, it means that there is a short circuit in the air and should be solved in time.
The diesel generator has a long service life and the protective effect of the filter is indispensable. In daily life, you should also pay attention to the maintenance of the air filter, clean and replace it attime.