Considering the low separating efficiency of conventional gas-liquid separator for small liquid drops

a new type of gas-liquid separator was proposed

which is available in a Mechanical Vapor Recompression (MVR) evaporation system

and its separation characterization was analyzed based on the research approach of a numerical simulation combined experiment verification in this study. Firstly

the numerical simulation method was employed to locate the most effective separation position through analyzing flow field and pressure distribution of the conventional gas-liquid separator

and the 3/4 circular baffle was installed there to construct a new type of gas-liquid separator. Secondly

separation characteristics of the proposed separator and influence rule of the number of 3/4 circular baffles were analyzed. Finally

the new separator structure was built and experimented to verify the simulation results and separation effect. The study results showed the separator with 3/4 circular baffle could improve the separation efficiency of small liquid drops significantly

with a little pressure loss. The circular body affected the separator characteristics significantly. With 3/4 circular baffle installed

the effective length of tangible movement could be increased and the radial velocity could be decreased

which plays a good role for increased separation efficiency with little pressure loss. Also

the separation efficiency and pressure loss are all increased with the number of 3/4 circular baffles. In this study

the separation efficiency of liquid drops with diameters less than 3 μm of the new separator structure could be increased by 15%

and pressure loss is only increased 200Pa .Combining the separation efficiency and pressure loss comprehensively

gas-liquid separators with two 3/4 circular baffles could achieve the most separation characteristics.