1, sandwich pot is also known as steam pot, cooking pot, sandwich steam pot. Usually consists of pot body and legs. The pot body is composed of internal and external spherical pot body of the double-layer structure in the form of intermediate interlayer electric heating, steam heating, gas heating, electromagnetic heating and other forms.
2, central circulation tube evaporator is also known as standard evaporator. Its heating chamber consists of vertical tube bundle, there is a large diameter central circulation tube in the middle, the rest of the smaller diameter heating tube is called boiling tube.
3, freezing concentration equipment is in recent years the rapid development of a concentration equipment. This equipment is based on the development of freezing concentration technology for the realization of a low-temperature liquid concentration equipment.