Precautions When Replacing Turbocharger Of Diesel Generator Set

Diesel generator set turbocharging can increase the power of the unit and improve the performance of the unit. The biggest advantage of turbocharging is that it can greatly increase the power and torque of the engine without increasing the engine displacement. After an engine is equipped with a turbocharger, the maximum power output can be increased by about 40% or more compared with that without a supercharger. Compared with naturally aspirated engines, turbocharged engines have stricter working environment and maintenance requirements. In this article, Jiangsu Starlight Electricity Equipments Co.,Ltd. will give you a detailed explanation of several matters that need to be paid attention to when replacing the turbocharger of the diesel generator set.

1. Clean the engine and replace the filter element. Drain the dirty oil, add 70% diesel oil and 30% engine oil to the engine, start the engine and run it for 3 to 5 minutes to clean the engine and oil passages, and then drain it. Add an appropriate amount of oil, and drain it after running for 5-10 minutes. Replace the oil filter element and air filter element, and then filter and add clean lubricating oil to the full scale of the oil dipstick to ensure that the engine lubricating oil and oil passages are clean.

2. Check the turbocharger. Check whether the new turbocharger model is compatible with the engine. Turn the turbocharger rotor by hand and it should run smoothly. If the impeller is stagnant or has a feeling of rubbing the casing, it is necessary to find out the reason before installing it.

3. Check whether there are debris in the compressor intake line and the exhaust line of the engine in front of the turbine to prevent debris from damaging the impeller.

4. Check the oil inlet and return pipes of the supercharger. The inlet and return oil pipes of the supercharger should be clean, and the inlet and return oil pipes should not be twisted and blocked. If the supercharger inlet and return oil ports use sealing gaskets, check whether the gaskets are corroded or deformed, and the gaskets cannot block the oil inlet and return ports.

5. Pre-lubricate the booster. The supercharger is installed on the engine and is not connected to the oil pipe for the time being. First add clean oil into the supercharger from the oil inlet of the supercharger, and turn the rotor by hand to make the supercharger bearing full of lubricating oil, and then connect the oil inlet pipe.

6. Trial operation. Start the diesel engine, and the oil inlet of the supercharger must show the oil pressure within 3 to 4s to prevent the supercharger bearing system from being damaged due to lack of lubricating oil. Run for 2 minutes, check whether the rotor rotates smoothly without noise, and then stop to observe whether the rotor can run smoothly by inertia. Normally, it stops after about half a minute.

7. When the engine is running under load, the oil pressure must be between 196 and 392kPa to be safe. When running at idle speed, the oil pressure should not be lower than 70kPa.

8. The exhaust back pressure after the turbine and the pressure drop of the air filter should not exceed 4.9kPa, and the air filter should avoid moisture, because the wet filter will significantly increase the pressure drop

The above content is organized by Jiangsu Starlight Electricity Equipments Co.,Ltd., a professional generator manufacturer. Jiangsu Starlight Electricity Equipments Co.,Ltd. is one of the earliest manufacturers of generating sets in China. It has first-class testing equipment, advanced production technology, professional manufacturing technology, perfect quality management system, and strong R&D technical strength. It can provide 3KW-2500KW various specifications of universal, automatic, four protection, automatic switching, low noise and mobile, etc., high-quality, low-energy generating sets to meet all customers' power needs, and can also meet users' different voltages and different frequency requirements, as well as the parallel-connected power supply system of multiple units, use excellent talents to build excellent enterprises, create excellent products, create excellent services, and strive to build excellent domestic enterprises. For more product details, please contact us with sales@dieselgeneratortech.com.