MVR蒸发器MVR EVAPORATOR

机械蒸汽压缩MVR或MVC（Mechanical Vapor Compression）蒸发器，其原理是利用蒸汽压缩机压缩蒸发产生的二次蒸汽，提高二次蒸汽热量和温度，压缩后的蒸汽打入蒸发器作为热源，再次使其原液产生蒸发，从而达到不需要外部鲜蒸汽，依靠蒸发器系统自循环来达到蒸发浓缩的目的。通过PLC控制系统、组态软件等工程软件来控制系统温度、压力、马达转速，保持蒸发器稳定、高效智能运行。

性能特点及适用范围:

1、没有废热蒸汽排放，节能效果十分显著，相当于10效蒸发器；

2、运用该技术可实现对二次蒸汽的逆流洗涤，因此冷凝水干物含量远低于多效蒸发器；

3、采用低温负压蒸发（50-90℃），有利于防止被蒸发物料的高温变性；

4、MVR蒸发器是传统多效降膜蒸发器的换代产品，是在单效蒸发器的基础上通过对二次蒸汽逆流洗涤及再压缩重新利用。

凡单效及多效蒸发器适用的物料，均适合采用MVR蒸发器，在技术上具有完全可替代性，并具有更优良的环保与节能特性。

MVR蒸发器技术由于其节能效果显著，70年代开始在国外迅速发展，现已广泛使用，应用于工业废水处理及乳品、制糖、淀粉、氧化铝、造纸、已内酰胺、海水淡化、炼焦厂）回收二氧化硫生产硫氨）、盐化工等很多生产领域。

Summary:

Mechanical vapor compression MVR or MVC(Mechanical Vapor Compression) evaporator, the principle is to use the secondary steam which is produced through compressing the steam by the steam compressor, secondary steam heat and temperature is increased by the compressor, steam compressed into the evaporator as the heat source, again makes the raw material liquid start evaporation, so there is no need to rely on external fresh steam, just need to rely on the evaporator system itself circulating to achieve the purpose of evaporation. Through the PLC control system, configuration software and engineering software to control the temperature, pressure, speed motor system, maintain stable, intelligent and efficient operation of the evaporator.

Performance Characteristics and Scope Of Application:

1. No waste heat steam emissions, energy-saving effect is very sigmificant, which is ecquivalent of 10 effect evaporator.

2. Using this technology can achieve to countercurrent washing of secondary steam, therefore the dry matter content in condensed water is far lower than the number of evaporator.

3. Using low temperature negative pressure evaporation(50-90℃), help to prevent the degeneration resulted from high temperature evaporation.

4. MVR evaporator is a substitute of traditional multi-effect falling-

film evaporator, is based on single effect evaporator through the reuse of the secondary steam countercurrent washing and recompression. All material that applicable for single effect and multi-effect evaporator, are suitable for use in the MVR evaporator, technically have the substitutability. It has perfect characteristics of environmental protection and energy saving. Because of its significant energy-saving effect, MVR evaporator technology started rapid development in foreign countries at the beginning of 70's, now is widely used, which is used in industrial wastewater treatment and dairy, sugar, starch, alumina, papermaking, caprolactam, seawater desalination, coking plant(recovery of sulfur dioxide production sulfur ammonia), salt chemical industry, and other many production areas.