输气管中生成水合物的真实情况The real situation of hydrate formation in gas pipeline:()
A.气体在管内高速度流动,不可能在某一点生成水合物,而往往在数十米的管段上形成水合物。The gas flows in the tube at a high speed, so it is impossible to form hydrate at a certain point.#B.形成水合物会改变压降曲线形状。Hydrate formation changes the shape of the pressure drop curve.#C.生成水合物时伴随有热效应,要放出热量。熔解水合物时,要吸收热量。水合物的熔解热为335KJ/kg,对管线温降曲线有影响。The formation of hydrate is accompanied by a thermal effect, to release heat. When you melt hydrate, you absorb heat. The melting heat of hydrate is
输气管加上内壁涂层,既可减少内腐蚀也大大降低了粗糙度,在同样条件下使输气管输气量增加5~8%,有的甚至高达10%。The inner wall coating on the pipe can reduce the internal corrosion and roughness. Under the same condition, the gas volume of the pipe can be increased by 5~8%, some even as high as 10%.