In the diesel generator industry, temperature is a common indicator of faults and is widely used for fault detection. To ensure that the operating temperature quality and performance of the generator set meet standard requirements, relevant testing and evaluation are required. Contact temperature is an effective method for evaluating thermomechanical properties. Strength, toughness, and ductility can be analyzed by measuring temperature under different loads. This article investigates how to detect
diesel generator set faults using temperature measurement. By measuring temperature and pulses using touch, the fault characteristics are analyzed in detail, providing a basis for temperature control and performance evaluation of diesel generator sets.
1. Temperature Measurement
During the initial stages of a diesel engine startup (after a period of time, the exhaust manifold temperature will be very high and can burn if touched), the operating status of each cylinder can be determined by touching the exhaust manifold temperature. If the exhaust manifold temperature of one cylinder is higher than that of the others, it indicates that the fuel supply to that cylinder is too high; if the temperature is lower, the fuel supply to the cylinder is insufficient, or the injected fuel is not fully burned or burns.
2. Pulsation Measurement
This method is suitable for checking the operation of a diesel generator's fuel pump and injectors. If you suspect a fault with the plunger or injector inside the diesel generator's fuel pump, hold the generator's high-pressure fuel pipe and observe the oil pressure and temperature changes inside the pipe to determine if there's a problem with the plunger or injector.
