Diesel generator sets obtain electric energy from the generator through diesel combustion, thereby generating electric energy to meet the normal demand for power. Therefore, the performance of diesel generator sets is closely related to diesel combustion. If the diesel combustion consumption rate of diesel generator sets is maximized to help units or enterprises using diesel generator sets to reduce power generation costs, it has become the biggest and most concerned issue of GF customers.

According to my country's standard GB/T 2820.7-2009 "Reciprocating Internal Combustion Engine Driven Alternator Units", the unit can normally operate continuously for 12 hours under rated conditions (including 10% overload operation for 1 hour), and the unit should be free of leaks, water leakage and air leakage phenomenon.

The fuel consumption rate means that the rated power of the unit is within the range of 120Kw≤600Kw, and the fuel consumption rate is≤260g/Kw·h.

The oil consumption rate is the unit rated power P>40Kw, and the total loss system oil (oil) consumption rate is ≤3.0g/Kw·h.

Therefore, diesel generator technicians concluded that the best way to improve fuel consumption is to adjust the unit's fuel supply system. That is, after the diesel generator set has been working for 400 hours normally, or the fuel injection pump-governor assembly. The fuel supply advance angle is corrected when it is reassembled after correction. The adjustment method of the fuel supply advance angle is as follows:

  First, remove the high-pressure oil pipe of the first cylinder of the fuel injection pump and governor assembly, and lock the handle on the governor at the position of the maximum fuel supply of the diesel generator set.

  Secondly, move the flywheel in the direction of the diesel generator, observe the fuel supply of the first cylinder of the fuel injection pump during the rotation, and stop rotating the crankshaft when the oil level of the first cylinder is found to fluctuate.

Finally, if the degree of fuel supply on the flywheel corresponding to the pointer on the flywheel housing does not match the fuel supply angle specified by the diesel engine of this model, loosen the two locking screws on the fuel injection pump coupling plate, and then turn the crankshaft to make the pointer match. Just tighten the two fixing screws to the angle within the specified range.

  After adjusting the fuel supply system of the diesel generator set, it can ensure the maximum diesel fuel consumption rate, which not only improves the performance of the diesel generator set but also saves costs for customers.

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