An integrated mvr evaporation concentration device

Abstract

The invention provides an integrated MVR evaporation and concentration device, which includes a device housing, a booster pump is installed at the lower end of the device housing, the booster pump is installed in a raw material water chamber, and the heated raw material water is pumped into the separator chamber. The cavity is connected to the raw material water cavity and the separator cavity, and the two ends of the heat exchange tube are respectively connected to the separator cavity and the raw material water cavity, which are used for evaporation heat exchange and part of the raw material liquid backflow; a compressor is installed on the upper end of the device shell, and the compressor will The generated steam is pressurized and enters the heat exchange tube cavity through the exhaust channel provided in the device shell, the condensed water after heat exchange enters the condensed water cavity through the condensed water channel, the condensed water outlet is set in the condensed water cavity, and the raw material water cavity is set to concentrate liquid outlet. The invention uses auxiliary heating to supplement the heat loss of the system, without external pipeline connection, and realizes the miniaturization of the MVR system; the power consumption of the booster pump is low, and the heat transfer efficiency is high; the heat exchange area is low, and the heat exchange efficiency in the evaporation-condenser High; the heat of condensed water is fully recovered, and the system efficiency is high.

Description

technical field [0001] The invention relates to an integrated MVR evaporation concentration device, which belongs to the technical field of wastewater treatment. Background technique [0002] Industrial saline wastewater is mainly treated by membrane method and evaporation method. Membrane method is not suitable for high-saline wastewater treatment, and multi-effect evaporation system consumes a lot of energy. Mechanical vapor recompression (MVR) system is currently the solution to this problem. main technical means. The MVR system includes evaporator-condenser, compressor, pump and other components, which can directly concentrate and purify wastewater (sewage in, clean water and concentrated liquid out). [0003] For MVR systems in the fields of industrial wastewater treatment, material concentration, etc., the processing capacity is generally greater than 0.5t / h, and centrifugal compressors or screw compressors are used, resulting in a large equipment footprint, among whi...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the above problems, the present invention provides an integrated MVR evaporation and concentration device, which provides an integrated compact structure and solves the technical problem that the MVR system cannot be miniaturized

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