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Evaporation concentration system

An evaporative concentration system and evaporative concentration technology, applied in the direction of multi-effect evaporation, steam generation, evaporator accessories, etc., can solve the problem of low energy utilization rate and achieve the effect of improving energy utilization rate

Active Publication Date: 2018-11-02
GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Based on this, it is necessary to provide an evaporative concentration system for the technical problem that the energy utilization rate of the prior art is not high

Method used

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  • Evaporation concentration system
  • Evaporation concentration system
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Embodiment Construction

[0021] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0022] like figure 1 Shown is a system schematic diagram of an evaporative concentration system of the present invention, including: a mechanical vapor recompression unit 1 that drives a water vapor compressor 4 to pressurize the steam through an engine 3, and a multi-effect evaporator with at least one effect heating and evaporating part Concentration unit 2, the multi-effect evaporation concentration unit is provided with waste gas waste heat boiler 5;

[0023] The engine smoke outlet 31 of the engine 3 of the mechanical vapor recompression unit 1 communicates with the waste gas waste heat boiler 5, and the steam generated by the waste gas heat recovery boiler 5 is used for the first effect of the multi-effect evaporation concentration unit 2. The main heater 6 of the multi-effect evaporation concentration unit that heats the evapo...

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Abstract

The invention discloses an evaporation concentration system, which comprises a mechanical steam recompression unit and a multi-effect evaporation concentration unit, wherein the mechanical steam recompression unit is used for pressurizing steam through a water steam compressor driven by an engine; the multi-effect evaporation concentration unit comprises at least one effect of heating evaporationpart; the multi-effect evaporation concentration unit is provided with a waste gas afterheat boiler; an engine smoke discharge opening of an engine of the mechanical steam re-compression unit is communicated with the waste gas afterheat boiler; the steam generated by the waste gas afterheat boiler heats a main heater of the multi-effect evaporation concentration unit of the first effect heating evaporation part of the multi-effect evaporation concentration unit. The evaporation concentration system is formed by two kinds of evaporation units including MVR and MEE; the two units are coupled through a waste gas afterheat boiler 12; the waste gas exhausted from the engine enters the waste gas afterheat boiler to generate steam; the steam is introduced to a heater to heat the materials. The exhaust gas waste heat of the engine is used, so that the additional heat energy cost is not needed; the energy source utilization rate is improved.

Description

technical field [0001] The invention relates to the field of comprehensive utilization of relevant technologies, in particular to an evaporation concentration system. Background technique [0002] The evaporative concentration system evaporates the solvent by heating and leaves the solution, and the non-volatile solute is still dissolved in the remaining liquid solvent to realize the separation of the solvent and the solute. Generally, the heat source of evaporative concentration systems is steam, which is usually obtained by burning fossil fuels. The mechanical vapor recompression unit (Mechanical Vapor Recompression, MVR) is different from the traditional multi-effect evaporation concentration unit (Multi-Effect Evaporation, MEE). And temperature, return to the evaporator to heat the material, realize the reuse of steam latent heat, theoretically do not need to use fresh steam, all mechanical vapor recompression units can save energy by 50-90% compared with traditional ev...

Claims

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Application Information

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IPC IPC(8): B01D1/26B01D1/30F22B1/18F01D15/08
CPCB01D1/26B01D1/30F01D15/08F22B1/1807Y02E20/30
Inventor 黄冲冯自平何世辉李帅旗
Owner GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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