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Diesel Generator sets
Diesel engine and parts
The role of the generator set intercooler and cleaning methods
July 27, 2022
After the installation of turbocharger and intercooler, the diesel generator lubricating oil and cooling waterways are also changed accordingly according to the specific situation, in order to adapt to the needs of boosting and intercooling.
Intercooler internal piping often with sludge, gum and other dirty things, not only cause air flow channel narrowing, and cooling heat exchange capacity is weakened, must be maintained and slip cleaning. Generally every year or engine overhaul, welding repair water tank at the same time, the internal intercooler should be cleaned and inspected.
The intercooler of diesel generator is used to cool the pressurized air and reduce the temperature of the pressurized intake air. The temperature drop of the booster air in the intercooler of the diesel generator is generally 25~60℃. On the one hand, it can improve the inflation density, on the other hand, it can also reduce the cylinder temperature at the end of the intake and the average temperature of the whole cycle. Generally, "water-cooled intercooler" is used for supercharged diesel engines for power generation. Intercooler consists of a shell and a core, intercooler 売 as part of the intake manifold of the generator set, the core is made of tube, in which the engine coolant circulation. The air flows through the core and is cooled before entering the combustion chamber of the Chongqing generator set. In this way, the inlet air temperature (cooling) of the diesel generator is better controlled due to the application of the intercooler, thus improving the combustion condition of the diesel generator. The intercooler is made as an important part of the supercharged engine. The role of the intercooler is to make the air through the supercharger first into the cooling process, to maintain the combustion of the cylinder into the charge air to maintain normal temperature and pressure. Most of them are installed in front of the water tank radiator, appearance and structure also have a lot in common with the water tank.
When the diesel generator set to high-speed acceleration, the exhaust pipe has part of the black smoke discharge, idle speed when there is a slight sound of air leakage should be noted, check the source of air leakage, the original intercooler intake hose (supercharger - intercooler) cracked, causing air leakage, especially in high-speed operation, from the supercharger out of a large amount of high-pressure gas from the hose crack leakage, room into the cylinder air volume reduced, affecting the power of diesel engines output. Cause bad acceleration in high speed.
Cleaning method: the water solution containing 2% soda ash (temperature should be 70-80 ℃) into the intercooler, filled, wait 15 minutes, see if the intercooler has water leakage. If there should be disassembled, welding repair (the same as repairing the water tank); if there is water leakage, shaking back and forth, repeated several times, pour out the wash, and then filled with clean water solution containing 2% soda ash for rinsing until cleaner, and then filled with clean hot water (80-90 ℃) cleaning, until the release of clean water.
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