多效蒸发器的类型有以下五种：

(1)单效蒸发器：一般是指单一的蒸发器，它在进行溶液蒸发时所产生的二次蒸气就不利用。

(2)双效蒸发器：也称之为双效降膜蒸发器是一种新型节能真空蒸发浓缩设备，是利用蒸发原理的过程而设计，主要是利用加热作用使溶液中一部分溶剂汽化而获得，适用于牛奶、葡萄糖、淀粉、木糖、化工、生物工程、废液回收等行业进行低温连续式蒸发浓缩。

(3)三效蒸发器：采用列管式重复外加热工作原理，物料受热时间短、蒸发速度快，浓缩比重大，保持物料原效。适用于化工、食品、轻工等行业的液体物料的蒸发浓缩工艺过程。

(4)四效蒸发器：具有传热效率高，物料受热时间短等主要特点，所以适用于热敏性、粘滞性、发泡性等物料，适用于牛奶、葡萄糖、淀粉、木糖、化工、生物工程、废液回收等行业进行低温连续式蒸发浓缩。

(5)五效蒸发器：适用于牛奶、葡萄糖、VC、木糖、化工、生物工程等行业进行蒸发浓缩。设备整个加热系统由于蒸汽加热均匀、料液为液膜式流动蒸发，所以具有传热效率高加热时间短等主要特点。

There are five types of multi-effect evaporator:

(1) single-effect evaporator: generally refers to a single evaporator, which does not use the secondary steam generated when evaporating the solution.

(2) the double-effect evaporator: also called double-effect falling film evaporator is a new type energy saving vacuum evaporation and concentration equipment are designed by using the principle of evaporation process, main is to use the heating function make part of the solvent evaporation in the solution and obtain, applicable to the milk, glucose, starch, xylose, chemical industry, biological engineering, waste recycling, etc to continuous evaporation concentration at low temperature.

(3) Three-effect evaporator: the tube type repeated external heating principle is adopted. The material is heated for a short time, the evaporation speed is fast, the concentration ratio is significant, and the original effect of the material is maintained. It is suitable for evaporation and concentration of liquid materials in chemical, food, light industry and other industries.

(4) four-effect evaporator: it has the main characteristics of high heat transfer efficiency and short heating time of materials, so it is suitable for heat-sensitive, viscous, foaming and other materials. It is suitable for low-temperature continuous evaporation concentration in milk, glucose, starch, xylose, chemical, biological engineering, waste liquid recovery and other industries.

(5) Five effect evaporator: suitable for evaporation and concentration of milk, glucose, VC, xylose, chemical industry, biological engineering and other industries. The whole heating system of the equipment has the main characteristics of high heat transfer efficiency and short heating time due to the uniform heating of steam and liquid flow evaporation of liquid film.