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废水蒸发器为机械式蒸发器，其主要特点在于蒸汽压缩机。蒸汽压缩机通过机械式压缩，提高水蒸汽的压力和温度。根据风量和压缩要求选择不同类型的蒸汽压缩机，蒸汽压缩机的转速由变频器调节，可根据实际需求调整压缩机转速压缩机设有温度监控探头和振动探头，保证其长期正常运行。
废水蒸发器针对化工有机废水高盐分高浓度等特点，基于蒸发浓缩结晶的原理，采用多效减压蒸发浓缩结晶有机废水，对浓缩液中的盐分进行分离后，通过集盐器进行回收，浓缩液进行干燥回收或焚烧处理，蒸发后的冷凝水一般通过后续的生化处理进行处理，可以实现废水排放的标准。

MVR蒸发系统（mechanical vapor recompression）的简称，蒸发器产生的二次蒸汽经过压缩后再利用的新型蒸发器。只需开车启动将物料加热到蒸发温度即可蒸发，正常运转时基本无需外界能源，蒸发浓缩领域中的能耗节约的新技术。早在60年代，徳国和法国已经开始的将该技术应用于化工、制药、造纸、污水处理、海水淡化等行业。
本MVR蒸发系统采用蒸汽或电热装置进行启动加热；PLC自动控制；随时开机、停机，自动化程度高。
It is Short for MVR evaporator (mechanical vapor recompression). It is a new kind of evaporator which may reuse secondary steam (after compression after compression) produced by the evaporator after compression. You only need to start up the equipment and heat the material to evaporation temperature. Almost no external energy source is needed for normal operation. This is a new kind of technology which requires least energy in evaporation and concentration area. Since 1960s, Germany and France have begun to apply this technology in chemical, pharmaceutical, paper-making, sewage treatment, seawater desalination and other industries.
This MVR evaporation starts and heats by steam or electric heating device; it is of automatic control by PLC; it can start and stop at any time with high automation degree.


MVR的技术特点/The technical features of MVR
1）低能耗、低运行费用；
1) Low energy consumption and low operation cost;
2）占地面积小；
2) Small floor area;
3）公用工程配套少；
3) Fewer supporting utilities;
4）运行平稳，白动化程度高；
4) Smooth operation, high automation degree;
5）无需原生蒸汽；
5) No need for primary steam;
6）采用单效蒸发，物料蒸发的停留时间短；
6) Adopts the principle of single effect evaporation with short evaporation residence time;
7）工艺简单，实用性强，负荷运转特性好；
7) Simple process, strong adaptability, excellent load operation feature;
8）基本无需冷却水供给；
8) Almost no need for cooling water supply;
9）无需真空保持运行。
9) Need no vacuum to keep running.

MVR的技术参数/Technical parameter of MVR
1）蒸发一吨水耗电45-70度电，无其它能耗；
1) Evaporation of a ton of water needs electricity up to 45-70 kilowatt-hour, no other energy consumption is needed;
2）可以实现40℃的低温蒸发；
2) It can realize low temperature evaporation (40℃)

特点
① 蒸发水量可达0.5t/h~100t/h。
② 正常运行时该系统只用电，蒸发每吨水的能耗为15KW.h至100KW.h，其运行费用为多效蒸发的1/8~1/2。
③ 是目前节能的蒸发器，多为单效蒸发，加热温差小，停留时间短，适于热敏性物料。
④ 结构紧凑，占地面积小。
⑤ 设备通过PLC控制实现自动运行，能够长期连续稳定运行。

MVR的应用推广范围/Application and promotion scope of MVR
1）蒸发浓缩 1) evaporation and concentrationn
2）蒸发结品 2) evaporation and crystallization
3）低温蒸发 3) low temperature evaporation