For the purpose of studying characteristics of coarse water in steam turbine,moving water droplets images have been acquired by using the image measurement system in the water spraying experiment platform and the measurement methods of droplets size,velocity and flow angle have been studied in this article.

The coarse water formed in the stator blade wake is the immediate cause to the rotor blade erosion.

There are two types of water droplets, fine droplet and coarse water in wet steam flow in LP steam turbine.

With slot hot gas blowing,the secondary water droplet diameters and its distributions downstream of the hollow stationary blade were measured by Malvern droplet and particle size analysers.

With and without suction slot, the secondary water droplet diameters as well as its distributions downstream of the hollow stationary blade were measured by Malvern Droplet and Particle Size Analysers.

The effect of the heat steam blowing through the steam turbine hollow stator blades\' slot on the size of secondary water droplets was studied on the air-water two-phase flow test rig.

Analysis on the production technology of primary brine for chlor-alkali production;

Application of pall membrane filter in primary brine of ionic membrane;

Comparison on filtering technology of primary brine between HVM membrane and ceramic membrane;