A new devolatiligation,inner circulating falling-film molecular distillation equipment;

Uses falling-film urea solution pre-concentration technology to troubleshoot the bottleneck of evaporation section and recover the waste heat from HP scrubber water.

Reinforcing existing building to build five-effect cannular falling film evaporation line;

The scabbing cause and preventable measures of plate model dropping film evaporator;

Energy saving effect analysing of plate model dropping film evaporator;

Investigation on reasons of the condensed water alkalinity exceeding standard in the tube type falling-film evaporator;

With the example of the application of three stages film evaporation equipment to concentrate the solution of glucose, some key points in the design and the operation of this kind of equipment were stated in this article.

In this article, the theoretical calculation and the design notices for the heat pumps used in the film evaporation equipment were introduced in detail.