在线清洗（CIP），是英文Clean-In-Place的缩写，即就地清洗或称为原位清洗，其定义为：不拆卸设备或元件，在密闭的条件下，用一定温度和浓度的清洗液对清洗装置加以强力作用，使仪器设备的表面洗净和杀菌的方法。
介绍了大庆炼化公司第三循环水场在线清洗的方案制定过程及清洗结果。
The process and its result of the on-line cleaning program in the third circulating water system of Daqing Refining & Chemical Company are introduced.
介绍了沈阳石蜡化工有限公司换热器在线清洗方案的制定过程及清洗结果。
The process and its result of the on-line cleaning program in heat exchanger of Shenyang Paraffin Refinery Plant are introduced.
根据双向流技术(TWF)的原理，设计了清洗中试的装置和两种在线清洗方案。
To carry out the on-line cleaning in industry, a kind of cleaning equipment is devised according to the principle of the two Way Flow (TWF) technology, and two cleaning schemes is constituted.
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