Integrated evaporator

Abstract

The invention discloses an integrated evaporator and belongs to the evaporator technical field. The integrated evaporator comprises a first evaporation box and a second evaporation box which are arranged in parallel; an air inlet is formed in the upper portion of the side wall of the first evaporation box; a water inflow pipe is arranged at the bottom of the first evaporation box in a penetratingmode; a first evaporation pipe communicated with the water inflow pipe at the bottom end is vertically arranged in an inner cavity of the first evaporation box; and a first separation box is arrangedat the top of the inner cavity of the first evaporation box. According to the integrated evaporator, the first evaporation box and the second evaporation box are arranged in parallel; rising film evaporation is carried out on a solution in the first evaporation box, so that primary purification can be carried out; falling film evaporation is carried out on the relatively concentrated solution subjected to primary evaporation in the second evaporation box, so that high-concentration purification can be carried out on the solution; since the advantages of the two modes are reasonably combined and utilized, the solution is subjected to two-step evaporation, the defects of the two evaporators are avoided, an evaporation effect is improved, the low-concentration solution can be subjected to high-concentration purification, and an expected evaporation effect can be achieved.

Description

technical field [0001] The invention relates to the technical field of evaporators, in particular to an integrated evaporator. Background technique [0002] Evaporation is a unit operation that uses heating to heat a solution containing a non-volatile solute to a boiling state, so that part of the solvent is vaporized and removed, thereby increasing the concentration of the solute in the solvent. In the chemical industry, food industry, pharmaceutical and other industries , the evaporation operation is widely used. [0003] Existing evaporators include circulating evaporators and single-pass evaporators, and the solution in the circulating evaporator is circulated in the evaporator. Due to the different causes of circulation, it can be divided into two types: natural circulation and forced circulation; in the one-way evaporator, the solution only passes through the heating chamber once in the evaporator, and it becomes concentrated liquid and is discharged without circulati...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the present invention provides an integrated evaporator, which solves some deficiencies in the existing rising film evaporators and falling film evaporators. When the solution needs to be purified at a high concentration, a single It is difficult to achieve the desired effect with a certain evaporator

Images