介绍了采用反渗透技术，结合国内现有油漆线的超滤装置实现电泳后冲洗全封闭逆流冲洗的技术。
This paper introduces the entirely closed upstream cleaning technology after electro - coating, where reverse osmosis technology is employed and domestic ultrafiltration equipment is used.
本装置主要特点有：（1）汽液两相流体同时循环，逆流接触。
The main characteristic of equipment is:(1) Vapor and liquid circulate concurrent and contact count-current.
针对压冲流体在可逆流体换向装置(RFD)中的流动特性，以能量方程为基础建立数学模型。
The mathematics model was established based on flow characteristics of reverse flow diverters (RFD) by the using of energy equation.
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