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蒸發系統

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MVR蒸發系統

添加時間:2018/12/18

MVR evaporation system

1、工作原理Working principle

MVR蒸發器,是英文mechanical vapor recompression的簡稱。mvr是重新利用它自身產生的二次蒸汽的能量,從而減少對外界能源的需求的一項技術。
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,經過壓縮機的壓縮,壓力和溫度得以升高,熱焓隨之增加,被送到蒸發器的加熱室當作加熱蒸汽即生蒸汽使用,使料液維持蒸發狀態,而加熱蒸汽本 身將熱量傳遞給物料本身冷凝成水。這樣,原來要廢棄的蒸汽就得到了充分的利用,回收了潛熱,又提高了熱效率。
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、主要特點 Main characteristics

1)MVR蒸發系統主要驅動力為電能,電能轉化為機械能將二次蒸汽熱能品位提升,運行成本較生產或購買新鮮蒸汽方式大幅降低。
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)在大多數的蒸發工藝情況下,系統運行過程中不需要供入生蒸汽,僅當出料成品液或母液熱量因工藝要求不能回收的情況下才需要補充部分熱量以供來料預熱之用。
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)系統不需要專門的冷凝器冷凝二次蒸汽,所以也不需要大量的循環冷卻水,節約大量水資源及電能。
No need independent condenser for second steam condensation, so no need circulating cooling water. Water resource and electric energy will be saved.
4)換熱溫差低,蒸發強度較溫和,可降低某些物料的結垢幾率。
Low heat exchange temperature difference and mild evaporation strength, scaling possibility of some product will be reduced.
5)系統蒸發溫度可控,非常適用于熱敏物料的蒸發濃縮。
Evaporation temperature of system can be controlled and very suitable for evaporation an concentration of thermal sensitive product.
6)系統設備數量少,設備布置簡單緊湊,總占地面積小。
Less equipment and compact layout with less occupation.

3、應用范圍Application

1)蒸發濃縮evaporation and concentration
2)蒸發結晶evaporation and crystallization
3)低溫蒸發low temperature evaporation
4)鹽溶液沸點升不超過15度salt solution with boiling point rise no more than 15℃
 
 
 

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