Parameters and Characteristics of 100kw Silent Diesel Generator Set

The 100kw silent diesel generator set is widely used in places with strict environmental noise requirements such as post and telecommunications, hotel buildings, entertainment venues, farms, industrial minerals, etc., as a common or backup power source.

Noise reduction scheme for 100kw silent diesel generator set.

1. Exhaust noise: Exhaust is a kind of high-temperature, high-speed pulsating airflow noise, which is the part of engine noise with large energy and many components. It is much higher than the intake noise and the mechanical noise radiated by the body, and it is the main component of the total engine noise. Its fundamental frequency is the firing frequency of the engine.The main components of exhaust noise are as follows: low-frequency pulsating noise caused by periodic exhaust smoke, air column resonance noise in the exhaust pipe, Helmholtz resonance noise of the cylinder, high-speed airflow through the valve gap and tortuous pipes Noise, eddy current noise and regeneration noise generated by the exhaust system under the excitation of the pressure wave in the pipe, etc., as the airflow speed increases, the noise frequency increases significantly.

2. Mechanical noise: Mechanical noise is mainly caused by the vibration or mutual impact caused by the periodic changes of gas pressure and motion inertia force of the moving parts of the engine during operation. The serious ones are as follows: piston crank connecting rod The noise of the mechanism, the noise of the valve mechanism, the noise of the transmission gear, the mechanical vibration and noise caused by the unbalanced inertial force. The strong mechanical vibration of the 100kw silent diesel generator set can be transmitted to various places outdoors through the foundation long-distance, and then form noise through the radiation of the ground. This kind of structural noise spreads far and attenuates, and once it is formed, it is difficult to isolate it.

3. Combustion noise: Combustion noise is the structural vibration and noise produced by diesel fuel during the combustion process. The sound pressure level of combustion noise in the cylinder is very high. However, most parts of the engine structure have high rigidity, and their natural frequencies are mostly in the middle and high frequency region. Due to the mismatch of the frequency response to the sound wave propagation, it is very high in the low frequency range. The high peak cylinder pressure level cannot be transmitted smoothly, while the cylinder pressure level in the mid-to-high frequency range is relatively easy to transmit.

4. Cooling fan and exhaust noise: The fan noise of a 100kw silent diesel generator set is composed of eddy current noise and rotating noise. The rotating noise is caused by the periodic disturbance of the cutting air flow of the fan blades; the eddy current noise is the airflow rotating blades The vortex flow generated when the section is separated due to the viscosity of the gas radiates an unstable flow noise. Exhaust air noise, airflow noise, fan noise, and mechanical noise are all radiated through the exhaust air channel.

5. Air intake noise: 100kw silent diesel generator set needs to have enough fresh air supply when it is working normally, on the one hand to ensure the normal operation of the engine, on the other hand, it is necessary to create good heat dissipation conditions for the unit, otherwise the unit cannot guarantee its performance . The air intake system of the 100kw silent diesel generator set basically includes the air inlet channel and the air intake system of the engine itself. The air inlet channel of the unit can make the fresh air enter the engine room smoothly, and the mechanical noise and airflow noise of the unit can also pass through this air inlet channel. Radiation to the outside of the computer room.

6. Generator noise: Generator noise includes electromagnetic noise caused by magnetic field pulsation between stator and rotor, and mechanical noise caused by rolling bearing rotation.

According to the above noise analysis of the 100kw silent diesel generator set. Generally, the following two treatment methods are used for the noise of the generator set:

Noise reduction treatment in the oil engine room or use of sound-proof units when purchasing (its noise is 80db---90db).

Features of 100kw silent diesel generator set.

1. The noise standard complies with ISO374.

2. The interior adopts special silencing materials, and the built-in silencer makes the structure compact. Good ventilation and radiation protection structure.

3 .The specially treated cabinet is fully adapted to all-weather use.

4. Observation windows are set in a reasonable position of the cabinet to facilitate observation and operation.

5. The specially set shock absorber makes the unit run quietly and peacefully.

6 .The large-capacity base fuel tank eliminates installation and connection procedures.

The 100kw silent diesel generator set is carefully designed by introducing foreign low-noise generator and engine technology; the design concept is advanced and the variety is complete. In addition to the series of diesel generator sets and various functions of diesel generator sets, the 100kw silent diesel generator set products also have the following features:

The 100kw silent diesel generator set has low noise, compact overall structure and small space occupation; all the cabinets are detachable structure, the cabinets are spliced by steel plates, the surface is coated with high-performance anti-rust paint, and it has the functions of noise reduction and rain protection.

The 100kw silent diesel generator set adopts a multi-layer barrier impedance mismatch muffler structure and a built-in large impedance muffler inside the box.

The cabinet structure design is reasonable, with a large-capacity fuel tank inside the cabinet, and two inspection doors on the left and right sides at the same time to facilitate the troubleshooting of the unit;At the same time, an observation window and a unit emergency shutdown button are opened on the box to observe the operation of the 100kw silent diesel generator set and to stop the unit at a fast speed when an emergency occurs to avoid damage to the unit.

If you want to know more, welcome to contact by email dingbo@dieselgeneratortech.com.