4Coalbed gas generator
Coal bed gas power generation
Applicable industry: high and low concentration coal bed gas power generation in coal mine.
Coal bed gas is a kind of burnable gas without any color, taste and smell. It will explode if the concentration ranges at 5%~16%, and if oxygen larger than 12%, it will also explode when meeting the naked light or temperature between 650 ℃ to 750 ℃ . Explosive power will be the biggest if concentration is 9.5%. It will not explode if concentration larger than 16%. It was generated by coal or rotten plants and exist in two states: absorbing and dissociate. China is the third biggest coal bed gas reserves country. Generation with coal bed gas not only keep the mine safe but also remit the situation of lacking power.
机组对瓦斯的要求:
■在距离燃气机组燃气进气阀 1m 内
◎瓦斯温度≤ 40℃;
◎瓦斯压力 3 ~ 20kpa,压力变化率≤ 1kpa/min;
◎ H2S ≤ 200mg/Nm3;
◎对于 CH4 体积含量≤ 30% 的瓦斯,CH4 与 O2 体积含量
之和≥ 28%, O2 体积含量≥ 16%;
◎瓦斯中水分含量≤ 40g/Nm3;
◎杂质粒度≤ 5μm, 杂质含量≤ 30mg/Nm3;
如果可燃气体中含硫及氨成分较高,不仅会严重腐蚀
火花塞电极,而且会使机油中的酸值增加,腐蚀机组内部
零件,同时易于生成沉淀物,增加对发动机的磨损和腐蚀。
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