The main reasons for the high water temperature of diesel generator sets are as follows: 1. Inappropriate choice of coolant or insufficient water Improper use of the coolant or insufficient water will result in a decrease in cooling performance and an increase in the temperature of the coolant. 2, the water radiator is blocked The heat sink of the water radiator has a large area of ​​lodging, and there are oil and mud debris between the heat sinks, which will prevent heat from being emitted. Especially when the surface of the water radiator is contaminated with organic oil, the thermal conductivity of the sludge mixture formed by the dust and the oil is smaller than that of the scale, which seriously hinders the heat dissipation effect. 3. The water temperature gauge or warning light is incorrectly indicated Including the water temperature sensor is damaged; the line is ironed or the indicator is out of order, resulting in false alarm. At this time, the surface thermometer can be used to measure the temperature at the water temperature sensor, and observe whether the water temperature meter indicates whether it matches the actual temperature. 4, the fan speed is too low, the blade is deformed or reversed If the fan tape is too loose, it will slip, causing the fan speed to be too low and the air supply effect to be weakened. If the tape is found to be too loose, it should be adjusted. If the rubber layer is aged, damaged or the fiber layer is broken, it should be replaced. 5, cooling water pump failure The pump itself is damaged, the rotation speed is too low, the scale in the pump body is excessively deposited, and the narrowing of the passage will make the flow rate of the coolant smaller, the heat dissipation performance is lowered, and the oil temperature of the diesel generator set is increased. 6, the thermostat failure The method of checking the thermostat is to remove the thermostat, suspend it in a container filled with warm water, and place a thermometer in the water, then heat it from the bottom of the container to observe that the thermostat valve starts to open and If the water temperature is completely turned on, if the above requirements are not met or there is obvious damage, the thermostat should be replaced immediately. 7, cylinder head gasket damage The method of judging whether the cylinder head is burned is: turning off the diesel engine, waiting for a while, then restarting the diesel engine and increasing the speed. If the water radiator cap is visible at this time, a large amount of air bubbles can be seen, and at the same time, small water droplets in the exhaust pipe are discharged with the exhaust gas, and it can be concluded that the cylinder head gasket is damaged. 8, improper injection time The injector is not working properly. If the fuel supply advance angle is too early or delayed, the contact area between the high temperature gas and the cylinder wall during combustion may increase, and the time is prolonged, and the heat transferred to the coolant increases, and the temperature of the coolant rises. At this time, there is a phenomenon that the power of the diesel engine is lowered and the fuel consumption is increased. If the fuel injection pressure of the injector drops, the fog will be poor, and the fuel will not be completely burned. The increase of the exhaust temperature will indirectly lead to an increase in the water temperature. 9, diesel engine overload operation When the diesel engine is overloaded, it will cause too much oil supply. When the generated heat exceeds the heat dissipation capacity of the diesel engine, the temperature of the coolant of the diesel engine will also rise. At this time, most of the diesel engines have black smoke, increased fuel consumption, and abnormal sound. Concerned about surprises Label: What are the reasons for the high water temperature of diesel generator sets? Previous: The scope and application of semiconductor materials Next: Three major reasons for the imbalance of output voltage of diesel generators Phlizon Foldable Series 1000W 8-bar configuration Folding LED Grow Light is a high-output and full-term lighting solution for indoor vertical farming and grow room, with brand Samsung LEDs and high quality drivers to scale from vegetative growth to higher light intensities in bloom.
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