TUBING AND PIPING FOR MULTIPHASE FLOW

摘要

Tubing or piping for carrying a multiphase flow is provided with means for inducing swirl flow, such that the denser components of the flow tend to the outer wall of the tubing or piping, and less dense components tend to the centre of the tubing or piping. The flow thus exhibits a "centrifuge" effect , which prevents lighter or heavier components of the flow from accumulating i n upper or lower regions respectively of the tubing or piping, and reduces the risk of airlocks and the like. Preferably, the tubing or piping is in the fo rm of a helix, which may be a low amplitude helix.