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Evaporation system for pressure reduction and film formation through vacuum rotation

An evaporation system and film-forming technology, applied in the field of evaporation systems, can solve the problems of low evaporation efficiency and achieve high evaporation efficiency, high heat utilization rate, and good heat transfer effect

Inactive Publication Date: 2014-04-30
傅利江 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The invention provides a vacuum rotary film-forming depressurization evaporation system that actively controls the formation conditions of the evaporation of the material liquid so that the material liquid can be evaporated instantaneously, and overcomes the low evaporation efficiency in the process of passively evaporating the material liquid low problem

Method used

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  • Evaporation system for pressure reduction and film formation through vacuum rotation
  • Evaporation system for pressure reduction and film formation through vacuum rotation
  • Evaporation system for pressure reduction and film formation through vacuum rotation

Examples

Experimental program
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Embodiment 1

[0028] see figure 1 , a vacuum rotary film forming depressurization evaporation system, comprising a vacuum vessel 1. The vacuum vessel 1 is made of stainless steel. The top wall of the vacuum container 1 is provided with an air extraction valve 11 . The upper part of the vacuum vessel 1 reserves a space for installing a steam condensation system.

[0029]A concentrated liquid storage tank 12 is provided at the middle part of the side wall of the vacuum container 1 . The concentrate storage tank 12 extends along the circumferential direction of the vacuum container 1 . The concentrated liquid storage tank 12 is provided with a concentrated liquid discharge valve 121 .

[0030] The bottom wall of the vacuum container 1 is provided with a cylindrical material-liquid barrel 2 inside the vacuum container 1 .

[0031] The bottom of the feed liquid barrel 2 is provided with a feed liquid inlet valve 21 . A motor 6 is arranged in the feed liquid barrel 2 . A liquid dispensing ...

Embodiment 2

[0040] Embodiment two, see Figure 4 , the difference with the first embodiment is: there are two evaporation tanks 3, and correspondingly there are two heating devices 8. The two evaporation tanks 3 are coaxial. Correspondingly, a vacuum liquid film forming structure 4 is provided in the two evaporation tanks 3 in the manner described in the first embodiment. The heat source medium inlet branch pipes 821 on all the nozzles 82 in the two heating chambers 81 are led out through the heat source medium dry pipe 83 . The material liquid barrel 2 is arranged on the outer surface of the bottom wall of the vacuum container 1 . The motor 6 is fixed above the vacuum container 1 . The heater 7 is located on the inner side wall of the evaporation tank 3 .

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Abstract

A vacuum rotation film-forming and depressurizing evaporation system, comprising a vacuum container (1); the vacuum container (1) is provided with a circular evaporation groove (3) therein with an open upper end; the side surface of the evaporation groove (3) forms an evaporation surface (31); the vacuum container (1) is provided with a heating device (8) for heating the evaporation surface (31); the evaporation groove (3) is provided with a vacuum liquid film forming structure (4) therein capable of rotating along the axis of the evaporation groove (3); the vacuum liquid film forming structure (4) comprises a blade (41), a concentrated liquid adsorption tube (43) and an assembled film former (42) sequentially disposed from front to back in the rotating direction of the vacuum liquid film forming structure (4); and the assembled film former (42) comprises a plurality of film forming rods (422) distributed vertically and extending horizontally, and a liquid distribution tube (421) conveying feed liquid to the film forming rods (422).

Description

technical field [0001] The invention relates to equipment for converting liquid-phase substances into gas-phase substances, in particular to an evaporation system that reduces pressure and forms a liquid film through rotation to achieve active control of evaporation conditions so as to realize instantaneous concentration of material liquid in place. Background technique [0002] There are two methods of desalinating seawater or concentrating solutions: one is osmosis and the other is distillation. Evaporation equipment is required for distillation. [0003] The working principle of the existing evaporation equipment is to heat the liquid mixture of the material to be processed (hereinafter collectively referred to as the material liquid), and to increase the evaporation rate of the liquid material by changing the temperature, surface area and other methods. [0004] A single-stage evaporation system is disclosed in the patent document with the Chinese Patent Authorizati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D1/22B01D1/16C02F1/04
CPCB01D3/12B01D3/06
Inventor 傅利江傅心怡
Owner 傅利江