The device mainly includes concentration tank, condenser, gas-liquid separator, cooler and liquid receiving barrel. The concentration can is of clip-sleeve structure, the condenser is of row-pipe type, the cooler is of coiled type. The device is suitable for the concentration of the material liquid in such industries as pharmacy, food and chemistry, etc. and as well serves for the recyle of alcohol and simple reversed flow distillation. The contact part of the concentrator and the material is made with the stainless steel, resistant to corrosion and meeting the standard of the GMP standard.