只要进入输气管道的天然气没有液态水析出,就不会在站间管段形成水合物。()
只要进入输气管道的天然气没有液态水析出,就不会在站间管段形成水合物。()
只要进入输气管道的天然气没有液态水析出,就不会在站间管段形成水合物。()
A、(1)析出的液态水与天然气中的某些组分形成固态水合物,从而堵塞管道或设备The resulting liquid water forms a solid hydrate with some components of natural gas, clogging pipes or equipment;
B、(2)析出的液态水会加剧管内壁的腐蚀,尤其是当天然气中含有硫化氢和二氧化碳时更为严重The resulting liquid water can exacerbate corrosion on the inside of the pipe, especially when natural gas contains hydrogen sulfide and carbon dioxide;
C、(3)水积聚后减小流通面积增加输气阻力。如果析出的液态水太多,管道中可能会出现气液两相段塞流,在干线输气管道上不允许出现After the accumulation of water, the flow area decreases and the resistance of gas transmission increases. If too much liquid water is precipitated, gas-liquid two-phase slug flow may occur in the pipeline, which is not allowed in the main pipeline;
D、(4)水蒸气降低湿天然气的热值Water vapor reduces the calorific value of wet natural gas。
A.比输送条件下最低环境温度低10℃
B.低于或等于最低环境温度
C.比输送条件下最低环境温度低5℃
A.比输送条件下最低环境温度低10℃
B. 低于或等于最低环境温度
C. 比输送条件下最低环境温度低5℃
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