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Poor Performance of Cooling System of Diesel Generator Set

Aug. 09, 2023

The performance of the cooling system of the diesel generator set directly affects the exertion of the power of the unit and the hidden trouble of the fault, so it is one of the necessary conditions for users to maintain the performance of the cooling system of the diesel generator set to ensure the normal operation of the unit. Here, Dingbo Power Generation Equipment shares with you the reasons for the poor performance of the unit's heat dissipation system. The specific content is as follows:


diesel generator set


If the performance of the cooling system is poor, it will cause many other failures, such as the power of the unit decreases, the diesel generator unit stops suddenly, the unit emits odor, smoke is not smooth, black smoke, etc. At this point, users must check the reasons for poor heat dissipation and high temperature of the participating units, and promptly troubleshoot them.


1. Blocking or damage of radiator fins: the Computer fan does not work or the radiator fins are blocked, which makes the coolant temperature unable to drop, and the radiator fins are rusted, causing leakage, which can also cause poor circulation of the cooling system.


2. Diesel generator set engine thermostat failure: a thermostat is installed in the diesel generator set engine combustion chamber to control the temperature of the engine combustion chamber. The thermostat must be fully opened at the specified temperature (82 degrees) to facilitate small circulation. If there is no thermostat, the coolant cannot maintain the circulating temperature, which may generate a low temperature alarm.


3. Low or non compliant coolant level: A low coolant level in the radiator can directly cause an increase in coolant temperature, causing the coolant to not circulate. According to regulations, the coolant is 50% antifreeze and 50% softened water. If not compliant, it will cause pipeline blockage, rust on the pipe wall, and prevent normal circulation of the coolant.


4. Water pump failure: check whether the water pump of the diesel generator set works well. If it is found that the water pump drive gear shaft is worn beyond the limit, it means that the water pump has failed to work and needs to be replaced before it can circulate normally.


5. Exhaust system fault: there is air mixed in the cooling system of the diesel generator set, which causes the pipeline to be blocked, and the damage of the suction valve and exhaust valve on the expansion water tank also directly affects the circulation. At this time, it is necessary to frequently check whether their pressure values meet the requirements. The suction pressure is 10kpa, and the exhaust pressure is 40kpa. In addition, the smoothness of the exhaust pipeline is also an important reason for affecting the circulation.


The above is the reason for the poor performance of the radiator system of the diesel generator set analyzed by Dingbo Power Generation Equipment. Users are expected to carefully observe the operating condition of the diesel generator set when using it. Once the unit is found to have poor heat dissipation, refer to the above content to eliminate the hidden trouble and ensure the safe operation of the diesel generator set.


As a professional diesel generator manufacturer, we always insist on using first-class talents to build a first-class enterprise, create first-class products, create first-class services, and strive to build a first-class domestic enterprise. If you would like to get more information welcome to contact us via sales@dieselgeneratortech.com.

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