Biogas generator sets are essential machines, among which Cat? The (Carter) CG170 series units have a high cost-effectiveness advantage:

高盈利能力：CG170系列機組發(fā)電效率高達44.2%。

High profitability: CG170 series units have a power generation efficiency of up to 44.2%.

高穩(wěn)定性:基于無氣流燃燒和擴大機油箱延長了維護保養(yǎng)間隔; 每年運行時間高達8000小時或以上。

High stability: extended maintenance intervals based on no airflow combustion and expansion of the oil tank; Up to 8000 hours or more of operation time per year.

低潤滑油消耗量：潤滑油消耗率約為同等機組的三分之一。

Low lubricating oil consumption: The lubricating oil consumption rate is about one-third of that of units of the same brand.

排放控制：高效清潔的燃燒滿足所有通用排放要求。

Emission control: Efficient and clean combustion meets all universal emission requirements.

氣體預處理及脫硫系統(tǒng)

Gas pretreatment and desulfurization system

氣體預處理系統(tǒng)主要包含除濕、過濾和穩(wěn)壓裝置，提供滿足發(fā)動機啟動和運行的氣體。氣體預處理系統(tǒng)是沼氣發(fā)電機組必須配置的設備。

The gas pre-treatment system mainly includes dehumidification, filtration, and pressure stabilization devices, providing gas that meets the requirements of engine start-up and operation. The gas pre-treatment system is a necessary equipment for the biogas generator set.

由于沼氣中通常含有H?S氣體，H?S氣體具有高度腐蝕性，任何發(fā)動機對H?S均有一定的要求。當沼氣中的H?S氣體含量高于發(fā)動機要求時，一定要進行脫硫處理。

Due to the presence of H? S gas, H? S gas is highly corrosive, and any engine has a significant impact on H? S has certain requirements. When H in biogas? When the S gas content exceeds the engine requirements, desulfurization treatment must be carried out.

脫硫方法有兩種：干法脫硫和濕法脫硫。對于高H?S含量氣體（H?S含量在10000ppm以上）時，通常采用濕法脫硫。濕法脫硫可以采用不同催化劑：絡合鐵、PDS等。

There are two desulfurization methods: dry desulfurization and wet desulfurization. For high H? When the S content of gas (H? S content is above 10000ppm), wet desulfurization is usually used. Wet desulfurization can use different catalysts such as complex iron and PDS.

脫硝裝置

Denitration device

沼氣發(fā)電機組是長期運行的，且現(xiàn)有的環(huán)保法規(guī)越來越嚴格（對NOx的排放要求通常為100mg、80mg，甚至低至35mg。），脫硝裝置成為必備的要素。目前卡特彼勒燃氣發(fā)電機組有兩種排放類型：250mg 和 500mg NOx。其工作原理是利用尿素溶液或氨水作為還原劑，在催化劑的作用下將煙氣中的NOx 還原成N2排放在空氣中，減少污染。

Biogas power generation units operate for a long time, and existing environmental regulations are becoming increasingly strict (NOx emission requirements are usually 100mg, 80mg, or even as low as 35mg.), making denitrification devices an essential element. At present, Caterpillar gas generator units have two types of emissions: 250mg and 500mg of NOx. Its working principle is to use urea solution or ammonia water as a reducing agent, under the action of a catalyst, to reduce NOx in the flue gas into N2 and discharge it into the air, reducing pollution.

配電設備

Power distribution equipment

無論是高壓還是低壓的沼氣發(fā)電機組，配電設備必不可少，其電氣系統(tǒng)通常包含：并網(wǎng)控制柜、并網(wǎng)開關柜、PT柜（發(fā)電機組額定電壓為高壓時需配置）、配電柜、動力電纜及電纜槽或溝、控制電纜及電纜槽或溝。

Whether it is a high-voltage or low-voltage biogas generator set, distribution equipment is essential. Its electrical system usually includes: grid connected control cabinet, grid connected switch cabinet, PT cabinet (required when the rated voltage of the generator set is high voltage), distribution cabinet, power cables and cable trays or trenches, control cables and cable trays or trenches.

提升經(jīng)濟效益的可選配置

Optional configurations for improving economic efficiency

溴化鋰制冷機組：溴化鋰制冷機組利用發(fā)動機排煙廢熱進行制冷，當項目需求有足夠的冷量，且冷量的經(jīng)濟價值高時，可配置。

Lithium bromide refrigeration unit: The lithium bromide refrigeration unit utilizes engine exhaust heat for refrigeration. When the project requires sufficient cooling capacity and the economic value of the cooling capacity is high, it can be configured.

蒸汽、熱水鍋爐：蒸汽、熱水鍋爐利用發(fā)動機排煙廢熱產(chǎn)生蒸汽和熱水，是項目的可選配置之一。

Steam and hot water boilers: Steam and hot water boilers utilize engine exhaust heat to generate steam and hot water, which is one of the optional configurations for the project.

熱交換器：

Heat exchanger:

為沼氣發(fā)動機水套水和后冷卻水散熱。

Heat dissipation for the jacket water and aftercooling water of the biogas engine.

將水套水或后冷卻水的熱量余熱利用，變成高溫熱水。當項目工藝中有熱水需求時，利用熱交換器進行余熱回收，大大增強了沼氣發(fā)電機組的經(jīng)濟效益。

Utilize the residual heat of jacket water or post cooling water to turn it into high-temperature hot water. When there is a demand for hot water in the project process, the use of heat exchangers for waste heat recovery greatly enhances the economic benefits of biogas power generation units.

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