沼氣進(jìn)入沼氣發(fā)電機(jī)組之前需要預(yù)處理，由于糞便產(chǎn)生的沼氣除含有大量的甲烷和二氧化碳外，還含有其他如硫化氫、雜質(zhì)、水分、氮氧化合物、硅氧烷等組分。糞便厭氧發(fā)酵產(chǎn)生的沼氣中硫化氫含量大，會(huì)對(duì)后端的設(shè)備產(chǎn)生腐蝕作用，因此進(jìn)行了沼氣脫硫的處理。
Biogas needs to be pretreated before entering the biogas generator unit. In addition to a large amount of methane and carbon dioxide, the biogas produced by feces also contains other components such as hydrogen sulfide, impurities, water, nitrogen oxides and siloxanes. The biogas produced by fecal anaerobic fermentation has a large content of hydrogen sulfide, which will corrode the equipment at the back end. Therefore, the biogas desulfurization treatment was carried out.
未經(jīng)處理的沼氣不符合發(fā)動(dòng)機(jī)氣體品質(zhì)的要求。沼氣直接進(jìn)入發(fā)動(dòng)機(jī)，可能會(huì)引起功率波動(dòng)、機(jī)組敲缸、停機(jī)甚爆炸。若氣體只是做了簡(jiǎn)單的處理，水分、含塵量、壓力、溫度等均不符合機(jī)組要求。由于積水導(dǎo)致了凝結(jié)水在管道的大量聚集，機(jī)組的可用率和發(fā)電功率大幅度下降；含塵量過(guò)高導(dǎo)致壓力損耗過(guò)大，且機(jī)組內(nèi)部缸體損耗嚴(yán)重；壓力、溫度等不符合機(jī)組要求，機(jī)組頻繁跳機(jī)，可用率大幅下降且增加了維護(hù)檢修成本。而經(jīng)過(guò)改造后的氣體預(yù)處理，機(jī)組的發(fā)電量可以增加70%。所以，氣體品質(zhì)處理的效果如何，直接影響到終的機(jī)組工作效率，從而影響收益。所以選用好的預(yù)處理設(shè)備進(jìn)體的、除雜、穩(wěn)壓、恒溫等等工作是保證效益的前提。
Untreated biogas does not meet the requirements of engine gas quality. Biogas directly enters the engine, which may cause power fluctuation, unit cylinder knocking, shutdown or even explosion. If the gas is simply treated, the moisture, dust content, pressure and temperature do not meet the requirements of the unit. Due to water accumulation, a large amount of condensed water is accumulated in the pipeline, and the availability and power generation of the unit are greatly reduced; Excessive dust content leads to excessive pressure loss and serious loss of cylinder block inside the unit; The pressure, temperature, etc. do not meet the requirements of the unit, the unit frequently trips, the availability rate drops significantly, and the maintenance cost is increased. After the gas pretreatment, the power generation of the unit can be increased by 70%. Therefore, the effect of gas quality treatment will directly affect the working efficiency of the final unit and thus affect the income. Therefore, selecting good pretreatment equipment for gas dehumidification, impurity removal, pressure stabilization, constant temperature and other work is the premise to ensure efficiency.
沼氣發(fā)電機(jī)組對(duì)使用環(huán)境及沼氣的基本要求：
The basic requirements of biogas generator set for use environment and biogas:
1.燃?xì)膺M(jìn)氣壓力為2-10kpa,發(fā)電機(jī)組的氣體壓力過(guò)高或過(guò)低則需加調(diào)壓閥或增壓設(shè)備；
1. The gas inlet pressure is 2-10kpa. If the gas pressure of the generator set is too high or too low, the pressure regulating valve or booster device shall be added;
2.燃?xì)庵胁缓坞x水和大于5μm的游離物質(zhì)，燃?xì)庵辛蚧瘹浜啃璧陀?0ppm；
2. The fuel gas does not contain free water and more than 5 μ M U.M, and the hydrogen sulfide content in the gas shall be less than 10ppm;
3.機(jī)組一般使用環(huán)境：溫度5℃~35℃，海拔高度≤500m；
3. General operating environment of the unit: temperature 5 ℃ ~ 35 ℃, altitude ≤ 500m;
備注：燃?xì)庵辛蚧瘹浜窟^(guò)高時(shí)，對(duì)燃?xì)鈾C(jī)組零部件會(huì)造成一定的腐蝕，影響機(jī)組正常使用及機(jī)組使用壽命。。
Note: when the hydrogen sulfide content in the gas is too high, it will cause certain corrosion to the parts of the gas unit, affecting the normal use of the unit and the service life of the unit..
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2022-08-12
