How Does the Pig Clean the Wax in the Pipe?
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There are many ways to clear wax in pipelines, such as chemical additives, that is, to prevent oil pipe waxing by using an aqueous solution of surfactant; using plastic pipes or coating on the inner wall of steel pipes; using glass pipes and plastic pipes to transport oil; or Some paints or special paints to prevent waxing. The following is a general explanation of how to use a pig to clean the wax in the pipeline.
The pig cleaning is a physical method. In the flow process of the wax (see the figure below), the self-contained steel brush and scraper form a large friction force on the inner wall of the pipe. The walls are mechanically cleaned to achieve a good pigging effect. The pig is a cortical return-type piston. It can use the wax on the wall of the running line to significantly increase the pipeline flow without increasing the power. It can also be used to remove the debris and water from the newly built pipeline. Improve the reliability of pipelines when they are put into production. Due to the many advantages of the pig, the pipe cleaner technology has been paid more and more attention in the petrochemical pipeline transportation operation.
