This paper proposes a new method for directly removing the liquid in wet gas from pipeline, especially for high velocity flow condition. The separation apparatus to be used is simply formed by enclosing a short section of the pipe with a compact cylinder and installing a swirler at the entrance. As gas–liquid mixture flows through the swirler downwardly, a strong swirl flow is created. Due to the centrifugal force, the two phases are isolated, forming a so-called swirling core-annular flow. Then a large portion of the gas core directly flows out of the separator, only the liquid film and a small portion of gas core (the conveying gas) enter the annular separation space through the upper portion of the ring-like window (RLW) in the pipe, where the conveying gas is separated from the liquid by centrifugal and gravitational forces and returns to the pipe through the lower part of the RLW. Numerical and experimental investigations were carried out in this study to determine the behavior of separation. The simulation and experimental results showed that the height of RLW has a strong effect on the behaviors of the separation, the conveying gas flowrate and the separation efficiency increase with the increase of RLW height, but the pressure drop also increases simultaneously. The separation efficiency even could approach 100% when the height of RLW is more than 1.5 pipe diameters with a 60% of conveying gas.

本文提出了一种新的直接去除管道中湿气中液体的方法，特别是在高速流动条件下。通过使用紧凑的圆筒将管的一小部分封闭并在入口处安装旋流器，可以简单地形成要使用的分离装置。当气液混合物向下流过旋流器时，会产生强烈的旋流。由于离心力，两相被隔离，形成了所谓的涡旋核-环流。然后，大部分气芯直接从分离器中流出，只有液膜和一小部分气芯（输送气体）通过环形窗口（RLW）的上部进入环形分离空间。管道 在这里，输送气体通过离心力和重力与液体分离，并通过RLW的下部返回管道。在这项研究中进行了数值和实验研究，以确定分离的行为。仿真和实验结果表明，RLW的高度对分离行为有很强的影响，随着RLW高度的增加，输送气体的流量和分离效率都会增加，但压降也会同时增加。当RLW的高度大于1.5管道直径且输送气体为60％时，分离效率甚至可能达到100％。仿真和实验结果表明，RLW的高度对分离行为有很强的影响，随着RLW高度的增加，输送气体的流量和分离效率都会增加，但压降也会同时增加。当RLW的高度大于1.5管道直径且输送气体为60％时，分离效率甚至可能达到100％。仿真和实验结果表明，RLW的高度对分离行为有很强的影响，随着RLW高度的增加，输送气体的流量和分离效率都会增加，但压降也会同时增加。当RLW的高度大于1.5管道直径且输送气体为60％时，分离效率甚至可能达到100％。