Diesel generator set radiator maintenance precautions

The whole body of the generator set is composed of many parts, and each part cooperates with each other, so that the diesel generator set can run normally. Yuchai generator radiator plays a very important role in ensuring the normal operation of the unit. Therefore, the maintenance of other parts of the unit or the radiator is very important. The maintenance cycle of the radiator of the diesel generator set is carried out every 200h of operation!

1. External cleaning of diesel generator set radiator:

Spray with hot water with an appropriate amount of detergent, and pay attention to spray steam or water from the front of the radiator to the fan. When spraying, cover the diesel engine and alternator with cloth. When there is a lot of stubborn deposits on the radiator, the radiator should be removed and immersed in hot alkaline water for about 20 minutes, and then washed with hot water.

2. Internal cleaning of diesel generator set radiator:

Drain the water in the radiator, then disassemble and seal the place where the radiator is connected to the pipe; pour 4% acid solution at 45 degrees into the radiator, drain the acid solution after about 15 minutes, and check the radiator; if If there is still scale, wash it again with 8% acid solution; after descaling, neutralize it twice with 3% alkali solution, and then rinse it with water more than three times;

3. After the above is completed, check whether the radiator of the diesel generator set is leaking. If there is water leakage, it should be repaired in time. If there is no water leakage, reinstall it. After the radiator is installed, it should be refilled with clean water and added with anti-rust agent.

4.the use of Yuchai generator radiator precautions

(1)Use clean soft water

Soft water usually includes rainwater, snow water and river water, etc. These waters contain few minerals and are suitable for use by the engine of the unit. However, well water, spring water and tap water have high content of minerals. These minerals are easily deposited on the radiator wall, water jacket and water channel wall to form scale and rust, which makes the heat dissipation capacity of the unit worse, and easily leads to the engine of the unit. overheat. The added water must be clean. The impurities in the water will block the water channel and increase the wear of the pump impeller and other components. If hard water is used, it must be softened. The softening methods usually include heating and adding lye (usually caustic soda).

(2)When “opening the pot”, prevent scalding

After the radiator of the diesel generator set is “boiled”, do not blindly open the water tank cover to prevent scalding. The correct way is: idling for a while before turning off the generator, and then unscrew the radiator cover after the temperature of the generator set and the pressure of the water tank drop. When unscrewing, cover the lid with a towel or car cloth to prevent hot water and steam from being sprayed on your face and body. Don’t look down at the water tank with your head. After unscrewing it, quickly withdraw your hands. When there is no hot air or steam, remove the water tank cover to prevent scalding.

(3)It is not advisable to release water immediately when the temperature is high

Before the Yuchai generator is turned off, if the engine temperature is very high, do not immediately stop and drain the water, but first unload the load to make it run at idle speed, and then drain the water when the water temperature drops to 40-50 °C to prevent the cylinder block and cylinder in contact with water. The temperature of the outer surface of the cover and the water jacket drops suddenly and shrinks sharply due to the sudden release of water, while the temperature inside the cylinder is still high and the shrinkage is small.

(4)Regularly change the water and clean the pipeline

It is not recommended to change the cooling water frequently, because after a period of use, the minerals of the cooling water have been precipitated. Unless the water is very dirty, it may block the pipeline and the radiator. Do not replace it easily, because even the newly replaced cooling water has passed through. It has been softened, but it still contains certain minerals. These minerals will be deposited in the water jacket and other places to form scale. The more frequently the water is replaced, the more minerals are precipitated, and the thicker the scale will be. Change the cooling water regularly.

Diesel generator set radiator maintenance precautions


Post time: Nov-05-2022