MVR evaporator

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MVR is an energy-saving technology that reuses the energy of the secondary steam it generates, thereby reducing the demand for external energy. As early as the 1960s, Germany and France had successfully used this technology in chemical industry, food, papermaking, medicine, seawater desalination and sewage treatment and other fields. The working process of the evaporator is to compress the low-temperature steam through the compressor, increase the temperature and pressure, and increase the heat enthalpy, and then enter the heat exchanger for condensation to fully utilize the latent heat of the steam. Except for starting up, there is no need to generate steam during the entire evaporation process. The secondary steam coming out of the evaporator is compressed by the compressor, the pressure and temperature increase, and the heat enthalpy increases. It is then sent to the heating chamber of the evaporator for use as heating steam to keep the material liquid in a boiling state, while the heating steam itself condenses into water. In this way, the steam that was originally going to be discarded is fully utilized, the latent heat is recovered, and the thermal efficiency is improved. The economical efficiency of raw steam is equivalent to the 30 effects of multi-effect evaporation. In order to make the evaporation device as simple as possible to manufacture and operate, a single-effect centrifugal recompressor is often used, which can also be a high-pressure blower or turbine compressor. These machines are in 1: 1.2 to 1: Its volume flow rate is higher within the compression ratio range of 2. For low evaporation rates, piston compressors, sliding vane compressors or screw compressors can also be used. Evaporation equipment is compact, occupies a small area, and requires little space. The cooling system can also be omitted. For existing factories that need to expand evaporation equipment for steam supply, insufficient water supply capacity, and insufficient space, especially where low-temperature evaporation requires chilled water condensation, it can save investment and achieve better energy-saving effects.