Diesel Generator Tech

In a diesel generator, the piston ring groove is surrounded by a certain elastic metal open ring. This metal ring is called the piston ring. Piston ring is one of the key components of the diesel generator, its performance directly affects the quality and reliability of the diesel generator. According to the different uses of piston rings, piston rings are categorized into gas rings and oil rings. The main role of the gas rings is to form a sealed combustion chamber space with the piston, cylinder head and cylinder liner to prevent the high temperature and high pressure gases in the combustion chamber from flowing into the crankcase from the piston gap, as well as the cylinder wall. The main role of the oil ring is to ensure that the oil is evenly distributed on the inner wall of the cylinder liner, preventing the oil from entering the combustion chamber. If the oil enters the combustion chamber, the diesel generator will burn the oil, and blue smoke will come out of the exhaust pipe, ...

The parts where cracks occur on Volvo diesel generator sets are often related to their structures. The parts where cracks occur on different types of Volvo diesel generator sets have certain regularity. Generally speaking, there are only three reasons for cracks in Volvo diesel generator sets. The cylinder block of Volvo diesel generator set has complex structure and uneven wall thickness. The rigidity of some weak parts of Volvo diesel generator set is low, and Volvo Diesel generator set is easy to crack. The stress concentration of Volvo diesel generator set occurs at the transition of machined parts, unprocessed parts and wall thickness. When these stresses are superimposed with the residual stress when the construction stops, Volvo diesel generator set is easy to crack. In cold winter, the cooling water in the water jacket of the  Volvo diesel generator set  freezes and cracks, or the hot water bursts in cold winter, because the Volvo diesel generator set does not have ant...

Epoxy resin bonding method and screw filling method for cylinder block and cylinder head of Perkins diesel generator set, and sealing method for cylinder block and cylinder head of Perkins diesel generator set. If the crack is long or there are holes in the parts of the cylinder block and cylinder head of the Perkins diesel generator set where the stress is small, use reinforcing plates around the damaged parts of the   Perkins diesel generator set . Drill holes at the end of each crack of Perkins diesel generator set to limit the extension of the crack. Cut 3-5mm thick copper plate or 1.5-2mm thick iron plate into patches similar to the fracture contour, and the area around the fracture is greater than 15-20mm. If there is a bulge on the disconnected surface of Perkins diesel generator set, the bulge of the same shape shall be knocked out on the terminal block, so that the whole terminal block of Perkins diesel generator set can match the surface of the wiring part. Press the fill...

  Due to the wetting effect of high permeability penetrant, it penetrates into the defects of Yuchai diesel generator set, and then removes the excess penetrant on the surface of Yuchai diesel generator set, and evenly applies a thin layer of developer. Under the capillary effect of developer, the residual penetrant in the defects is absorbed to the surface of   Yuchai diesel generator set   to show the defects. The penetration method is divided into coloring method and fluorescence method, and the coloring method involves adding a red dye with strong display performance to the penetration solution. Use chalk powder to prepare developing solution, so that the penetrant of Yuchai diesel generator set can be absorbed in the white developing solution and displayed clearly. The fluorescence principle is to add chartreuse fluorescent substances in the penetrant, which should be specially prepared as developer. When the penetrant is absorbed by Yuchai diesel generator set, it c...

Cooling methods of standby diesel generator There are two common ways of cooling diesel generators, air cooling and water cooling. It is the same principle as the engine. Both use the fast-heating and highly fluid substance to take away the temperature in the environment to control the working environment temperature. Water cooling is mainly performed by a water circulation system. The water pump draws cold water into the cold water pipeline and takes away the heat through the water flow wound in the water cooling pipeline on the equipment.   Air cooling is generally installed in the generator room ventilation system, through the exchange of hot and cold air to control the indoor temperature, there are four common ventilation systems:   1). Normal ventilation system: For the ventilation of generator room, it is generally the ventilation volume of 10 to 15 times of ventilation, and only exhaust fans can be set; if there is gas for water supply and drainage, this syste...

During the use of diesel generator set , because operators are negligent in maintenance or diesel generators long-term overloaded work, there will be some unexpected situations, as follows: 1.During the operation, the diesel engine suddenly changes its sound, the oil pressure drops or there is no oil pressure directly. It is possible that the high pressure oil pump is damaged and emergency stop is required; 2.Observe the meter speed, if the speed automatically rises or stays high, it is very likely that there will be a flying phenomenon; 3.After working for a period of time, the genset temperature rises sharply, or it is failure to start up. The reasons are mainly poor cooling, we need to check the water tank first; 4.The sound of normal diesel generating set should be clear and melodious. If there is any abnormal sound or sound of knocking on the cylinder block, emergency shutdown and checking is required; 5.If there are oil leakage, water leakage and othe...