About replacing the antifreeze of diesel generator sets!

Replace the antifreeze of the diesel generator set. So why do you need to change antifreeze? What kind of antifreeze should I choose? What are the precautions? What is the function of antifreeze?

Antifreeze is an indispensable cooling medium for the diesel generator set: first, it protects the water tank of the generator set from freezing, so that it will not freeze, expand and burst in winter; second, it cools the engine. When the engine is running, antifreeze is used as a circulating cooling liquid. It is clear. Therefore, in winter, it is recommended to add antifreeze for generator set maintenance to avoid unnecessary accidents in your equipment.

As for what kind of antifreeze to choose? Choose an antifreeze with a suitable freezing point. Generally speaking, it is recommended that the freezing point of the selected antifreeze is 10°C lower than the local minimum temperature, leaving more margin to avoid sudden cooling in certain places. For example, in Suzhou and Shanghai, the lowest temperature in winter is around -1°C, so you can use antifreeze with a freezing point of -16°C.

In winter, use appropriate antifreeze to avoid corroding the heat pipe and causing blisters and leaks; open the cover when it is hot, slowly loosen the cover first, and wait until all the steam is discharged before opening the cover to avoid burns; replace the antifreeze regularly. Avoid leaks when adding.

At present, antifreeze for diesel generator sets comes in many colors, 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 antifreeze is diethylene glycol. Different colors represent different main components and cannot be mixed. Before starting the diesel generator, you must check whether the cooling water or antifreeze in the diesel engine water tank is sufficient. If it is missing, fill it up.

Antifreeze function:

  1. Antifreeze function. To ensure that the cooling system of the diesel engine is not frozen when the temperature is too low, the most common anti-freeze temperature of the coolant is between minus 20 degrees and 45 degrees, which should be selected scientifically according to the actual needs of different regions.
  2. Anti-boiling function. Under high temperature conditions, it is ensured that premature boiling is not easily caused. Normally, the most common boiling point of coolant is 104 degrees to 108 degrees. When the coolant is added to the cooling system and creates pressure, its boiling point will be higher.
  3. Anti-corrosion function. Professional coolant can reduce corrosion to the cooling system, thereby avoiding water leakage caused by rust and corrosion in the cooling system.

Fourth, anti-rust function. High-quality coolant can avoid rust in the cooling system, which will cause accelerated wear and reduce heat transfer efficiency.

  1. Anti-scaling function. Since the coolant is deionized water, it can avoid scaling and precipitation and achieve the purpose of protecting the engine.

In summary, the application of diesel generator coolant solves the problems of suboptimal cooling of diesel generators and excessive temperature of parts, and avoids the causes of operational failures of diesel generator sets. In addition, its anti-corrosion, anti-rust and anti-hearing functions Create the most suitable operating conditions for diesel generator sets. Generator manufacturer Guangxi Zhengchai Generator Unit would like to remind you that if the coolant is not replaced for a long time, its effectiveness will be reduced, so usually we can replace the coolant every one and a half to two years.

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