沼氣發(fā)電機的原理是用沼氣作為燃料進行發(fā)電，通過垂直植入垃圾堆體里若干根抽氣井，不間斷將沼氣抽出。

The principle of biogas generator is to use biogas as fuel for power generation, and continuously extract biogas by vertically implanting several extraction wells into the garbage heap.

經(jīng)過收集管網(wǎng)送至發(fā)電機機組，再經(jīng)過冷卻脫硫脫水、過濾凈化等處理后，產(chǎn)生的純沼氣在發(fā)電機組里燃燒發(fā)電。

After being collected through the pipeline network and sent to the generator unit, the pure biogas produced is then cooled, desulfurized, dehydrated, filtered and purified, and burned in the generator unit for power generation.

在我國沼氣發(fā)電機分為單燃料沼氣發(fā)電機及部分使用沼氣的雙燃料沼氣。

In China, biogas generators are divided into single fuel biogas generators and some dual fuel biogas generators that use biogas.

單燃料沼氣發(fā)電機組：不需要輔助燃料油及其供給設(shè)備，燃料為一個系統(tǒng)，在控制方面比可燒兩種燃料的發(fā)電機組簡單且價格較低。

Single fuel biogas generator set: does not require auxiliary fuel oil and its supply equipment, the fuel is a system, and in terms of control, it is simpler and cheaper than a generator set that can burn two types of fuels.

雙燃料沼氣發(fā)電機組：用液體燃料或氣體燃料都可以，對沼氣的產(chǎn)量和甲烷濃度的變化能夠適應(yīng)，用氣體燃料轉(zhuǎn)為用柴油燃料在停止工作后，機組內(nèi)不殘留未燃燒的氣體，因為耐腐蝕性好。

Dual fuel biogas generator set: It can use both liquid fuel and gas fuel, and can adapt to changes in biogas production and methane concentration. When using gas fuel to switch to diesel fuel and stop working, there is no residual unburned gas in the unit because it has good corrosion resistance.

沼氣發(fā)電機優(yōu)點是燃料比較方便而且環(huán)保又便宜，各種畜禽等糞便都可以做燃料。

The advantage of biogas generators is that the fuel is relatively convenient, environmentally friendly, and cheap, and various animal manure can be used as fuel.

有優(yōu)點也有缺點，前期投資較大還要有足夠的沼氣發(fā)酵原料，對于北方天氣，冬天寒冷就不怎么好用了，在低溫時發(fā)酵太慢就會無法帶動發(fā)動機。

There are both advantages and disadvantages. In the early stage, there is a large investment and sufficient biogas fermentation raw materials. For northern weather, it is not very useful in the cold winter. If the fermentation is too slow at low temperatures, it will not be able to drive the engine.