Causes of High Temperatures During the Diesel Generator Sets Operation

Knowing what causes high temperatures when operating diesel generator sets, we should pay special attention to these during the operation of diesel generators. When the temperature of diesel generator sets is too high, it usually causes the coolant in the radiator to be jubilant, the power of the diesel generator set to decrease, the viscosity of the lubricating oil to decrease, the conflicts between the components of the diesel generator set to worsen, and even lead to serious problems such as cylinder pulling and cylinder gasket burning of the diesel generator set, Long term overload operation of diesel generator sets can lead to increased fuel consumption, increased heat load, and then high water temperature. To this end, long-term overload operations should be prevented. If there is a short amount of coolant in the cooling system of the diesel generator set, it will affect the heat dissipation effect of the diesel generator set and form a high temperature of the diesel generator set. In this regard, it is necessary to frequently check the coolant inventory in the radiator and expansion tank, and make up for it in a timely manner when the liquid level is low.

The lack of opening of the thermostat will reduce the heat dissipation capacity of the cooling system of the diesel generator set in the large cycle. If the diesel generator set is at high temperature, the thermostat can be placed in water for heating and inspection. Generally, the opening interval of the thermostat is 8-10mm. If the water pump is not functioning properly, a decrease in coolant flow will occur, resulting in high temperatures in the diesel generator set. If the hydraulic oil radiator and water radiator are placed in front of each other, when the hydraulic oil temperature is too high, it will inevitably cause a high cold air temperature on the inlet side of the water radiator, which will affect the heat dissipation of the water radiator. In this regard, it is necessary to inspect the heat dissipation status of the hydraulic system and reduce the impact of the hydraulic oil radiator on the poor heat dissipation of the water radiator of the diesel generator set.

The attachment of debris on the surface of the radiator can reduce the heat dissipation area and the top wind area of the radiator, resulting in a decrease in the heat dissipation ability of the radiator, causing high temperatures in the diesel engine. 6. Loose or deformed fan belts can easily lead to a decrease in fan speed, resulting in the radiator not being able to exert its proper heat dissipation ability, leading to excessively high temperatures in the diesel generator set. In addition, the deformation of the electric fan can also cause the heat dissipation ability of the radiator to not be fully utilized. In this regard, it is necessary to regularly check whether the fan belt of the diesel generator set is loose and whether the fan shape is abnormal.

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