VC生产过程中，物料产生的污垢会降低螺旋板换热器的利用率，制约着整个生产线的产量。能过定性分析研究了合适的清洗剂，有效清除物料污垢。

Fouling produced in VC manufacturing process make the efficiency of heat exchanger reduced. A suitable cleaning agent was developed, with which the fouling could be efficiently removed.

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从中优选出“原油清管加油溶性化学清洗剂”的清洗方法，完全满足了克独老线清洗的要求。

Among the methods, the one with chemical cleaning solution which is oil soluble can satisfy the requirements for the old Ke-Du Pipeline cleaning.

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