发电机组主要噪声有排气噪声、机械噪声、燃烧噪声、冷却风扇和排风噪声、进风噪声、发电机噪声，地基振动噪音。那么瓦斯发电机组噪音的产生与处理方式是怎样的呢？

The main noise of the generator unit includes exhaust noise, mechanical noise, combustion noise, cooling fan and exhaust noise, inlet air noise, generator noise and foundation vibration noise. So what is the noise generation and treatment method of the gas generator set?

1、机械噪音：机械噪声主要是发电机组各运动部件在运转过程中受气体压力和运动惯性力的周期变化所引起的震惊或者是相互冲击摩擦而产生的（活塞曲柄连杆机构产生的噪声、配气机构的噪声、传动齿轮的噪声、不平衡惯性力而引起的机械震惊及噪声）。

1. Mechanical noise: mechanical noise is mainly caused by shock or mutual impact and friction caused by periodic changes of gas pressure and motion inertia force of all moving parts of the generator set during operation (noise generated by piston crank connecting rod mechanism, noise of valve train, noise of transmission gear and mechanical shock and noise caused by unbalanced inertia force).

2、燃烧噪音：瓦斯在燃烧过程中产生的结构震惊和噪声，在汽缸内燃烧噪声声压级长短常高的。但是，发念头结构中大多数零件的钢性较高，其自振频率多处于中高频区域，因为对声波传播频率响应不匹配，由于在低频段很高的汽缸压力级峰值不能顺利地传出，而中高频段的汽缸压力级则相对易于传出。

2. Combustion noise: the structural shock and noise generated during the combustion of gas. The sound pressure level of combustion noise in the cylinder is often high. However, most of the parts in the engine structure have high rigidity, and their natural frequencies are mostly in the middle and high frequency range. Because the response to the acoustic wave propagation frequency is not matched, the high cylinder pressure level peak in the low frequency range cannot be transmitted smoothly, while the cylinder pressure level in the middle and high frequency range is relatively easy to be transmitted.

3、机组风扇噪声是由涡流噪声、旋转噪声与机械噪声组成。排风噪声、气流噪声、风扇噪声、机械噪声会通过排风通道传播出去，进风通道的作用是：保证瓦斯发电机的正常工作以及给发电机组本身创造良好的散热条件，选择的方案应能作到既要有效地降低环境噪声，又要组织好机房内的空气活动，满足发电机组运行需要的空气流量，以保障瓦斯发电机组的正常工作。

3. The fan noise of the unit is composed of eddy current noise, rotating noise and mechanical noise. The exhaust noise, air flow noise, fan noise and mechanical noise will be transmitted through the exhaust channel. The function of the air inlet channel is to ensure the normal operation of the gas generator and create good heat dissipation conditions for the generator unit. The selected scheme should not only effectively reduce the environmental noise, but also organize the air activities in the machine room to meet the air flow required for the operation of the generator unit, To ensure the normal operation of the gas generator unit.

建议今后油机房建设建议采用以下方案：尽量减少油机房门和窗户的数目，避免油机噪声的泄漏；尽可能加大油机房进风口距油机基础的间隔，延长消音间隔，搭建进风小室；在油机排风口外增加扩张室并尽可能延长油机房扩张室的排风口间隔，房内除地面外的五个壁面可作为吸声处理，根据发电机组的频谱特性采用穿孔板共振吸声结构。

It is suggested to adopt the following scheme for the construction of oil engine room in the future: reduce the number of doors and windows of oil engine room as much as possible to avoid the leakage of oil engine noise; Increase the interval between the air inlet of the oil machine room and the oil machine foundation as much as possible, extend the silencing interval, and build the air inlet chamber; An expansion chamber shall be added outside the exhaust port of the oil engine room and the interval between the exhaust ports of the expansion chamber of the oil engine room shall be extended as much as possible. The five wall surfaces in the room except the ground can be used as sound absorption treatment. According to the frequency spectrum characteristics of the generator unit, the perforated plate resonance sound absorption structure is adopted.

发电机噪声包括定子和转子之间的磁场脉动引起的电磁噪声，以及动弹轴承旋转所产生的机械噪声。总之，您想处理这一类问题，就要对其进行充足的了解，关注我们//www.gz-yanye.com了解更多！

The generator noise includes the electromagnetic noise caused by the magnetic field pulsation between the stator and the rotor, and the mechanical noise caused by the rotation of the movable bearing. In short, if you want to deal with this kind of problem, you should fully understand it and pay attention to us //www.gz-yanye.com Learn more!