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蒸发系统

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MVR蒸发系统

添加时间:2018/12/18

MVR evaporation system

1、工作原理Working principle

MVR蒸发器,是英文mechanical vapor recompression的简称。mvr是重新利用它自身产生的二次蒸汽的能量,从而减少对外界能源的需求的一项技术。
MVR evaporator is the abbreviation of mechanical vapor recompression. By reusing energy from second steam to reduce energy requirement from outside.
二次蒸汽,经过压缩机的压缩,压力和温度得以升高,热焓随之增加,被送到蒸发器的加热室当作加热蒸汽即生蒸汽使用,使料液维持蒸发状态,而加热蒸汽本 身将热量传递给物料本身冷凝成水。这样,原来要废弃的蒸汽就得到了充分的利用,回收了潜热,又提高了热效率。
After compression, pressure and temperature of second steam will be increased as well as the enthalpy. After that, second steam will enter into the heating chamber and used as fresh steam to keep evaporation of the liquid. Therefore, steam will be recycled and heating efficiency will be increased. 

2、主要特点 Main characteristics

1)MVR蒸发系统主要驱动力为电能,电能转化为机械能将二次蒸汽热能品位提升,运行成本较生产或购买新鲜蒸汽方式大幅降低。
Main driven power of MVR evaporation system is electric energy. Electric energy transfer to mechanical energy and improve the quality of second steam which is more economic than produce or purchase fresh steam.
2)在大多数的蒸发工艺情况下,系统运行过程中不需要供入生蒸汽,仅当出料成品液或母液热量因工艺要求不能回收的情况下才需要补充部分热量以供来料预热之用。
Under most of the evaporation process, system no need fresh steam during operation. Only need some steam compensation for pre-heating the raw material when heat energy from product discharged or mother liquid cannot be recycled due to process requirement. 
3)系统不需要专门的冷凝器冷凝二次蒸汽,所以也不需要大量的循环冷却水,节约大量水资源及电能。
No need independent condenser for second steam condensation, so no need circulating cooling water. Water resource and electric energy will be saved.
4)换热温差低,蒸发强度较温和,可降低某些物料的结垢几率。
Low heat exchange temperature difference and mild evaporation strength, scaling possibility of some product will be reduced.
5)系统蒸发温度可控,非常适用于热敏物料的蒸发浓缩。
Evaporation temperature of system can be controlled and very suitable for evaporation an concentration of thermal sensitive product.
6)系统设备数量少,设备布置简单紧凑,总占地面积小。
Less equipment and compact layout with less occupation.

3、应用范围Application

1)蒸发浓缩evaporation and concentration
2)蒸发结晶evaporation and crystallization
3)低温蒸发low temperature evaporation
4)盐溶液沸点升不超过15度salt solution with boiling point rise no more than 15℃
 
 
 

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