MVR Variable MVR Evaporation Device and Process with Fluctuating Load

摘要

According to the present invention, a variable MVR apparatus according to a load change includes: a first evaporator which forms evaporated steam at a first temperature T ₁ through heat exchange with a heated steam; A second evaporator which forms steam at a second temperature T ₂ through heat exchange with the heated steam; And an MVR compressor for forming steam at low temperature (T ₃ , P ₃ ) at high temperature and high pressure (T ₄ , P ₄ ) and having a constant operating capacity (C ₀ ), wherein some of the steam transport passages are provided. Alternatively, all of the valves are further provided with on / off or flow rate adjustable valves and operated in two or more modes according to the on / off of the valves on the respective flow paths, so that even if the operating capacity C ₀ of the MVR compressor is fixed, It is possible to flexibly respond to the load fluctuations on the wastewater treatment capacity or the load fluctuations on the unstable power amount caused when driving by using a renewable energy source.