MVR heat concentration circulation evaporation system

Abstract

The invention provides an MVR heat concentration circulation evaporation system. An evaporator, a separation tank and a centrifugal steam compressor are connected by pipes to form a circulation evaporation loop. A separated liquid produced by in the separation tank is connected to a separated liquid discharge port through a drain valve. The bottom of the evaporator is provided with a heater for providing a supplying heat source for the evaporator. The discharge port at the bottom of the evaporator is connected to a concentrated liquid discharge port through a buffer tank and a centrifugal pumpand discharges the concentrated liquid in a buffer tank. According to the single-stage mechanical vapor re-evaporation principle, through the MVR evaporation technology, the system utilizes internalwaste heat as a heat source to preheat the raw material liquid. Through the spiral and wire mesh separation technology, the quality of secondary steam is ensured. Through the centrifugal steam compressor, the enthalpy of the secondary steam is improved. The system realizes system energy recycling.

Description

technical field [0001] The invention belongs to the technical field of MVR distillation and concentration, and relates to an MVR thermal concentration cycle evaporation system, which is especially suitable for the evaporation and concentration fields of medicine, food, biochemical industry and the like. Background technique [0002] At present, as energy prices continue to rise, enterprises generally face the problem of increasing operating costs. It has become a common goal for enterprises to promote the upgrading and transformation of traditional manufacturing processes, improve energy utilization, and reduce operating costs. [0003] At present, energy-saving evaporation systems on the market mainly use multi-stage evaporation, TVR, MVR and other processes. Multi-stage evaporation, that is, the secondary steam generated by the upper stage is used as the heat source of the next stage. Its disadvantages are mainly high evaporation temperature, the secondary steam of the las...

AI Technical Summary

Problems solved by technology

Multi-stage evaporation, that is, the secondary steam generated by the upper stage is used as the heat source of the next stage. Its disadvantages are mainly high evaporation temperature, the secondary steam of the last effect is not used, the utilization rate of heat energy is low, and a large amount of cooling water is required; TVR, that is, heat pump technology, boosts part of the secondary steam as a heat source for the evaporator; MVR, mechanical vapor recompression technology, recompresses all the secondary steam generated by the evaporator to increase the enthalpy of the secondary steam, so that It continues to enter the evaporator for heat exchange, reducing energy consumption

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