What Should Pay Attention to When Using Diesel Engines Coolant
by Starlight Generator dieselgeneratortechThe use of the coolant in the
cooling system is to prevent corrosion and formation of scale in the cooling
circuit and within the engine. We should never use water alone, as a coolant in
diesel engines since water itself can be corrosive at high operating
temperatures.
The use of coolant in diesel
generator solves the problems of poor cooling and high temperature of the
diesel generating set. Usually, we should replace the cooling liquid every one
and a half years to two years. The standard replacement cycle of the cooling
liquid will be very helpful for the genset protection. It can form a protective
film on the surface of cylinder sleeve of the generator set so as to prevent
the occurrence of cavitation and reducing wear and corrosion, which can prolong
the maintenance intervals of the genset and reduce the maintenance cost. On the
contrary, non-replacement for a long time, it will definitely reduce the using
effects. So what problems should be paid attention to in the process of using
diesel generator coolant?
Coolant selection: Select clean
fresh water such as rainwater, tap water and river water. The well water and
underground water (Hard water) shouldn’t be used directly, because they contain
more minerals, which is easy to form limescale in the water tank of diesel
engine, influence the cooling effect and even result in malfunction. If there
is only hard water, it must be light softened before using. The softening
method usually refers to the boiling method. Boil the water, add 0.67g caustic
soda to per liter of water, and use the upper water after precipitation.
Cool the diesel engine with
seawater is not allowed
When the diesel engine is used
below 0°C, it should prevent the coolant freezing since it may cause the
cracking of relevant parts. Therefore, when the diesel engine finishes running,
the cooling liquid of each parts should be discharged.For adopting the models
of closed cycle cooling system, it can be equipped with appropriate antifreeze
coolant according to the local minimum ambient temperature.
The formula of commonly used
antifreeze coolant is as follows:
When equipped with the flammable
antifreeze coolant, you should pay attention to fire safety since both ethylene
glycol and alcohol are inflammable materials. Before using antifreeze coolant,
the dirt in the cooling system should be cleaned to prevent the production of
new chemical precipitates, which will affect the cooling effect. For the diesel
generator that used the antifreeze coolant, it is not necessary to let out the
coolant every time after stopping, but it should be regularly added and check
the composition.
Do not use 100% antifreeze as
coolant
If there is much limescale and
dirt in the cooling system of diesel engine, clean it with cleaning solution.
The cleaning solution can be made from water, soda water(Na2CO3) and water
glass (Na2SiO3). Namely, add 40g soda water and 10g water glass to each liter
of water. When cleaning, pour the cleaning solution into the cooling water
chamber of the diesel engine. Drive the diesel engine to operate, when the
outlet water temperature is greater than 60°C, continue to run for about two
hours and then parking, and release the cleaning solution. After the diesel
engine is cooled, wash it with clean fresh water for two times, drain and pour into
the cooling water and drive the machine to operate again. When the outlet water
temperature reached 75°C, parking and release the sewage, after that, inject
new cooling water.
We supply multiple brand of diesel generator sets such as Cummins, Perkins, Volvo, Deutz, Ricardo, Doosan Daewoo, Yuchai, Shanchai, Weichai, Wuxi, etc.
The genset style is varied, such as silent type, trailer type, portable type and so on.
Contact us at: sales@dieselgeneratortech.com
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Created on Nov 21st 2017 21:44. Viewed 358 times.