Efficient concentrator

Abstract

The invention discloses an efficient concentrator. A discharging hole of a balance tank is connected with a discharging pipe; a separation device comprises a plate type evaporator and a separation tank; two or more than two groups of separation devices are arranged; the discharging pipe is connected with a raw material inlet of the first-grade plate type evaporator; a liquid-phase outlet of the former grade of separation tank is communicated with the raw material inlet of the plate type evaporator of the next grade of separation device; the liquid-phase outlet of the final grade of separation tank is connected with a liquid outlet pipe; a gas-phase outlet of the former grade of separation tank is communicated with a steam inlet of the next grade of plate type evaporator; the gas-phase outlet formed in the top of the separation tank of the final grade of separation device is communicated with a solvent inlet of a plate type condenser; a steam inlet pipe of the first-grade plate type evaporator is connected with an outlet of a spraying pump; an inlet of the spraying pump is connected with a fresh steam general pipe; an air suction hole of the spraying pump is communicated with a steam channel of each plate type evaporator; a steam condensed water outlet of the first-grade plate type evaporator is connected with a water discharging pipe and the water discharging pipe is communicated with the steam inlet pipe of the first-grade plate type evaporator through a pipeline.

Description

technical field [0001] The invention relates to a high-efficiency concentrator. Background technique [0002] In large-scale industrial production, it is often necessary to evaporate a large amount of water, which requires a large amount of energy to heat the raw material to heat the water in it to form steam. In order to reduce the consumption of heating steam, multi-effect evaporation can be used. The heating steam is passed into the first evaporator, the raw material is heated and boils, and the secondary steam generated by the evaporation of the raw material is used as heating steam and introduced into the next evaporator, as long as the pressure of the latter evaporation chamber and the boiling point of the solution are higher than those in the original evaporator. If it is low, the introduced secondary steam can act as a heating source. Similarly, the new secondary steam generated by the second evaporator can be used as the heating steam of the third evaporator. In ...

AI Technical Summary

Problems solved by technology

The current plate evaporator generally sets steam inlet and outlet and raw material inlet and outlet respectively at the four corners of the rectangular plate. It flows upwards along the fluid channel and diffuses to the entire plate during the flow process. The fluid in this distribution method is unevenly distributed in the lower part. When it rises to the upper part for evaporation, the contact between hot and cold fluids will reduce the evaporation effect, which will eventually lead to poor concentration and waste. energy, increasing production costs

Moreover, after the raw material absorbs heat, it needs a large space to evaporate. This kind of fluid channel is consistent from top to bottom, which affects the effect of evaporation.

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