發(fā)電機組主要噪聲有排氣噪聲、機械噪聲、燃燒噪聲、冷卻風(fēng)扇和排風(fēng)噪聲、進(jìn)風(fēng)噪聲、發(fā)電機噪聲，地基振動(dòng)噪音。那么瓦斯發(fā)電機組噪音的產(chǎn)生與處理方式是怎樣的呢？

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、機械噪音：機械噪聲主要是發(fā)電機組各運動(dòng)部件在運轉過(guò)程中受氣體壓力和運動(dòng)慣性力的周期變化所引起的震驚或者是相互沖擊摩擦而產(chǎn)生的（活塞曲柄連桿機構產(chǎn)生的噪聲、配氣機構的噪聲、傳動(dòng)齒輪的噪聲、不平衡慣性力而引起的機械震驚及噪聲）。

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、燃燒噪音：瓦斯在燃燒過(guò)程中產(chǎn)生的結構震驚和噪聲，在汽缸內燃燒噪聲聲壓級長(cháng)短常高的。但是，發(fā)念頭結構中大多數零件的鋼性較高，其自振頻率多處于中高頻區域，因為對聲波傳播頻率響應不匹配，由于在低頻段很高的汽缸壓力級峰值不能順利地傳出，而中高頻段的汽缸壓力級則相對易于傳出。

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、機組風(fēng)扇噪聲是由渦流噪聲、旋轉噪聲與機械噪聲組成。排風(fēng)噪聲、氣流噪聲、風(fēng)扇噪聲、機械噪聲會(huì )通過(guò)排風(fēng)通道傳播出去，進(jìn)風(fēng)通道的作用是：保證瓦斯發(fā)電機的正常工作以及給發(fā)電機組本身創(chuàng )造良好的散熱條件，選擇的方案應能作到既要有效地降低環(huán)境噪聲，又要組織好機房?jì)鹊目諝饣顒?dòng)，滿(mǎn)足發(fā)電機組運行需要的空氣流量，以保障瓦斯發(fā)電機組的正常工作。

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.

建議今后油機房建設建議采用以下方案：盡量減少油機房門(mén)和窗戶(hù)的數目，避免油機噪聲的泄漏；盡可能加大油機房進(jìn)風(fēng)口距油機基礎的間隔，延長(cháng)消音間隔，搭建進(jìn)風(fēng)小室；在油機排風(fēng)口外增加擴張室并盡可能延長(cháng)油機房擴張室的排風(fēng)口間隔，房?jì)瘸孛嫱獾奈鍌€(gè)壁面可作為吸聲處理，根據發(fā)電機組的頻譜特性采用穿孔板共振吸聲結構。

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.

發(fā)電機噪聲包括定子和轉子之間的磁場(chǎng)脈動(dòng)引起的電磁噪聲，以及動(dòng)彈軸承旋轉所產(chǎn)生的機械噪聲?？傊?，您想處理這一類(lèi)問(wèn)題，就要對其進(jìn)行充足的了解，關(guān)注我們http://m.elmasticar.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 http://m.elmasticar.com Learn more!