About replacing antifreeze of diesel generator sets

Diesel generator sets change antifreeze. Why do we need to change antifreeze? What kind of antifreeze should we choose? What are the precautions? What is the function of antifreeze?
Antifreeze is an indispensable heat dissipation medium for diesel generator sets: one is to prevent freezing of the generator set water tank, so that it will not freeze and expand and burst in winter; the other is to cool the engine. When the engine is running, the use of antifreeze as a circulating cooling liquid is very obvious. Therefore, in winter, it is recommended to add antifreeze to maintain the generator set to avoid unnecessary accidents to your equipment.
As for what kind of antifreeze to choose? Choose an antifreeze with a suitable freezing point. Generally speaking, the freezing point of the selected antifreeze is recommended to be 10℃ lower than the local minimum temperature, leaving more surplus to avoid sudden cooling in some places. For example, in Suzhou and Shanghai, the minimum temperature in winter is around -1℃, so it is enough to use antifreeze with a freezing point of -16℃.
In winter, use appropriate antifreeze to avoid corrosion of the heat dissipation pipe and leakage of sand holes; open the lid in a hot state, loosen the lid slowly first, and wait until all the steam is discharged before opening the lid to avoid burns; replace the antifreeze regularly and avoid leakage when adding.
Currently, there are many colors of antifreeze for diesel generator sets, mainly red, green and blue. The main component of red antifreeze is propylene glycol, the main component of green antifreeze is ethylene glycol, and the main component of blue is diethylene glycol. Different colors represent different main components and cannot be mixed. Before starting the diesel generator, it is necessary to check whether the cooling water or antifreeze in the diesel engine water tank is sufficient. If it is insufficient, fill it up.
Function of antifreeze:
1. Antifreeze function. Ensure that the diesel engine cooling system is not frozen when the temperature is too low. Under normal circumstances, the most common antifreeze temperature of coolant, that is, the freezing point, is between minus 20 degrees and 45 degrees. Scientifically select according to the actual needs of different regions.
2. Anti-boiling function. Ensure that premature boiling is not easy to occur under high temperature conditions. Under normal circumstances, the most common coolant boiling point is 104 to 108 degrees. When the coolant is added to the cooling system and pressure is generated, its boiling point will be higher.
3rd, anti-corrosion function. Professional coolant can reduce the corrosion of the cooling system, thereby avoiding the leakage caused by the rust corrosion of the cooling system.
4th, anti-rust function. High-quality coolant can avoid the rust of the cooling system. If the cooling system rusts, it will cause accelerated wear and reduce the heat transfer efficiency.
5th, anti-scaling function. Since the coolant uses deionized water, it can avoid the formation of scaling and precipitation, so as to achieve the purpose of protecting the engine.
In summary, the application of diesel generator coolant solves the problem of suboptimal cooling of diesel generators and excessive temperature of parts, avoids the occurrence of diesel generator operation failures, and its anti-corrosion, anti-rust and anti-listening functions create the most suitable operating conditions for diesel generators. Generator manufacturer Guangxi Zhengchai Generator Group would like to remind you that if the coolant is not replaced for a long time, its function will be reduced, so we usually replace the coolant every one and a half to two years.