Experimental And Visualization Study On Gas-liquid Two Phase Flow Character In Distribution Headers

In power plant boilers, nuclear reactors and chemical, refrigeration, petroleum, metallurgical industry, the process of gas-liquid two phase flow which flow through the header to all of the branches is often occurred. Therefore, how to promote the two-phase flow distribution uniformity, is imperative for improving the economy and security of power plant boiler equipment and other heat transfer equipment.An experimental investigation was conducted to study the two-phase distribution in two horizontal headers that with two inlet turrets in this article. The two headers, one of them fixed a flute fitting, in contrast with the traditional header. Experimental data show that the flow distribution character of the header with a flute fitting is much more better than the old one. Additionally, visualization research was conducted in oder to further study the distribution of two-phase flow characteristics in header. The reason of flow distribution of two headers is qualitatively analysed by the way of observation and high speed photography, as well as, PIV technology.