characters: 1. Full closed process, fast and low temperature evaporation; 2. Heating fast with high efficiency and hard to produce the deposit on the machine's inside wall; 3. Large scale of the concentrate ratioas the products between the different effects can recycle separately, so the concentrate ratio can be regulated in large scale; 4. The machine attach with spraying ball and self CIP system. structure: 1) The equipment is mainly composed of evaporator, separator, condenser, etc. It is widely used for concentration and dehydration in food, biology, pharmacy, chemical industry, etc. 2) Control types include manual control and automatic control.