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Technical background

    Evaporation, distillation, evaporation and crystallization, evaporation and drying equipment are all high in energy consumption.

    Energy consumption accounts for a large proportion of the operating cost of these equipment, so the reduction and optimization of unit energy consumption is important to reduce the overall operation cost.

    There are three main technologies that minimize energy consumption, which can be adopted separately or in combination:

•         Multipleeffect evaporator(MEE)

•         Thermal vaporrecompressor(TVR)

•         Mechanical vaporrecompressor(MVR)

    Among the above three evaporation technologies, MVR evaporator is the lowest energy consumption.

    MVR is an energy-saving technology, reusing the energy of the secondary steam produced by itself to reduce the demand for external energy.

    In the MVR evaporator, the low-temperature secondary steam from the evaporator was compressed through the compressor, the temperature, pressure and enthalpy were increased, and then was sent to the heating chamber of the evaporator as a heating stream, so that the material liquid maintained a boiling state, while the heating stream itself was being condensed into condensate. In this way, the secondary steam to be abandoned is fully utilized, the latent heat was recovered, and the thermal efficiency was improved. The economy of the fresh steam was equivalent to a 30-effect evaporator.

    MVR evaporator equipment is compact in structure, small in occupied area, and no need of a cooling system. For factories that need to expand the evaporation equipment, but have insufficient steam supply capacity, insufficient site, especially in case of low-temperature evaporation which needs freeze water for condensation, MVR evaporator can not only save investment and achieve good energy saving effect.

•        Lower unit energy consumption, and less operation cost;

•        Evaporation is moderate because of smaller temperature difference;

•        The product staying time is short, because of single-effect;

•        Simple processand strong practicability;

•        Stable operation, and high degree of automation;

•        Just a few fresh steam required for startup.

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