Low noise generator noise is a complex sound source composed of multiple sound sources. According to the method of noise radiation, it can be divided into aerodynamic noise, surface radiation noise and electromagnetic noise. According to the reasons, the radiated noise on the generator surface can be divided into combustion noise and mechanical noise. Aerodynamic noise is the main source of noise. Principle and advantages of low noise generator noise prevention:

Low noise generator

   1. Aerodynamic noise is due to the unstable process of the gas, that is, the disturbance of the gas and the interaction between the gas and the object. Aerodynamic noise goes directly into the atmosphere, including intake noise, exhaust noise, and cooling fan noise.

   2. Combustion noise and mechanical noise are difficult to distinguish. Generally, combustion noise and external radiation noise are caused by the combustion noise of cylinder heads, pistons, crankshafts, and crankshafts. The noise of the impact of the piston on the cylinder liner and the mechanical impact of the moving parts is called mechanical noise. The ordinary direct injection diesel engine (generator set) has higher combustion noise than mechanical noise, while the non-direct injection diesel engine has higher mechanical noise than combustion noise. But at low speeds, the combustion noise is higher than the mechanical noise.

  3. Electromagnetic noise is generated by a generator rotor that rotates at high speed in an electromagnetic field.

Principle and advantages of low noise generator anti-noise

   1. Beautiful appearance and reasonable structure;

   2. Good tightness: rainproof, snowproof, dustproof, can work in harsh environment;

   3. Safety: closed box, made of 2 mm steel plate;

   4. Ventilation and ventilation in the box, the temperature is not high enough to ensure the operating power of the unit;

   5. Good defensive performance: the protective device can also reduce the noise performance, and the box is effectively sound-isolated, so that the unit can effectively reduce the noise during operation.

   6. High-frequency, medium-frequency and low-frequency Boolean sound-absorbing cotton is used in the box, which effectively reduces the noise of different noises from various components.

   7. Adopt EPDM type keel seal on the door.

   8. The muffler uses a high-efficiency muffler, which effectively reduces the noise of the exhaust pipe.

   9. Operability: The designer’s human-oriented guiding ideology takes full account of the operators on the oil engine. Convenient and safe operation.

   10. Lifting: When necessary, the unit is equipped with 4 lifting devices in the box for the convenience of field transportation.