GAS-LIQUID SEPARATION DEVICE AND REFRIGERATION DEVICE INCLUDING GAS-LIQUID SEPARATION DEVICE

摘要

PROBLEM TO BE SOLVED: To solve the problem in which various types of means are adopted regarding improvement in separation performance in a conventional gas-liquid separation device, however, there has been no proposal about how to prevent a gas phase from being mixed with a liquid phase and leaking from a liquid phase outlet pipe, by paying attention to a behavior of a gas phase swirl.SOLUTION: In a gas-liquid separation device, a swirling force is added to a two-phase flow introduced in a cylindrical container from a two-phase flow inlet pipe, a gas and a liquid are separated by a centrifugal force, and a gas phase is flowed out from a gas phase outlet pipe and a liquid phase is flowed out from a liquid phase outlet pipe. A downward conical inclined surface part is formed in which an apex angle is 120 degrees or less in a cross section including a central axis of a cylindrical part, and the liquid outlet pipe is provided at a position of the inclined surface part excluding a connection curved surface provided between the inclined surface part and the cylindrical part of the cylindrical container. Also, in the cross section including the central axis of the cylindrical part, when a ridge line between a cylindrical part inner wall 2b and a connection curved surface inner wall 13a is defined as X, a distance between the ridge line X and the central axis of the cylindrical part is defined as L, and a distance between the ridge line X and a central axis of the liquid phase outlet pipe is defined as L, L/L0.6 is satisfied.SELECTED DRAWING: Figure 5