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Glycerin evaporation device and evaporation method thereof

An evaporation device and glycerin technology, which is applied in the direction of evaporation, multi-effect evaporation, separation methods, etc., can solve the problems of low purity of glycerin and low energy utilization rate, and achieve the effects of energy saving, cost reduction and labor intensity

Active Publication Date: 2017-02-01
常州中源工程技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: in order to solve the problem of low energy utilization rate and low purity of glycerin in the prior art glycerin purification equipment, a glycerin evaporation device and its evaporation method are now provided

Method used

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  • Glycerin evaporation device and evaporation method thereof

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Embodiment 1

[0030] Such as figure 1 As shown, a glycerin evaporation device includes a first preheater 4, a first evaporation unit, a second preheater 5, a forced circulation evaporation unit, and a second evaporation unit connected in sequence;

[0031] The first evaporation unit includes a first falling film heat exchanger 11 and a first falling film evaporation chamber 12. The upper tube box of the first falling film heat exchanger 11 communicates with the upper end of the tube pass of the first preheater 4, and the first The lower tube box of the falling film heat exchanger 11 is in communication with the first falling film evaporation chamber 12, and the lower tube box of the first falling film heat exchanger 11 is also connected to the upper tube box of the first falling film heat exchanger 11 through an external tube The upper end of the first falling film evaporation chamber 12 communicates with the upper end of the shell side of the first preheater 4, and the lower end of the first ...

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Abstract

The invention relates to the technical field of glycerin purification, in particular to a glycerin evaporation device and an evaporation method thereof. The glycerin evaporation device comprises a first preheater, a first evaporation unit, a second preheater, a forced cyclic evaporation unit and a second evaporation unit which are sequentially connected, wherein crude glycerin firstly passes through the first evaporation unit, the glycerin content of the crude glycerin is improved to above 95%, then the crude glycerin is put in the forced cyclic evaporation unit, the forced cyclic evaporation unit is utilized to produce glycerin steam, the glycerin steam enters the second evaporation unit, the second evaporation unit is utilized to collect glycerin steam heat and liquify glycerin steam, the glycerin content of the liquified glycerin steam is above 99.5%, the second evaporation unit converts the glycerin steam heat into a steam heat source of the first evaporation unit, glycerin steam heat is effectively utilized, energy sources are saved, and meanwhile a high-purity glycerin product can be obtained.

Description

Technical field [0001] The invention relates to the technical field of glycerin purification, in particular to a glycerin evaporation device and an evaporation method thereof. Background technique [0002] Glycerol is a colorless, sweet, clear and viscous liquid, commonly known as glycerin. Glycerin is one of the important chemical raw materials. It has excellent dissolving and wetting properties. It is widely used in medicine, food, cosmetics, and chemical industries. The crude glycerin is glycerin The content is generally around 70%-80%. The decolorization and purification of crude glycerin is very difficult, and the traditional glycerin purification equipment has low energy efficiency and serious energy waste. One ton of glycerin consumes about 1.5 tons, and the glycerin content does not reach At 99.5%, residual glycerin in distilled water cannot be discharged. Summary of the invention [0003] The technical problem to be solved by the present invention is: in order to solve t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D1/22B01D1/26
CPCB01D1/0094B01D1/22B01D1/26
Inventor 徐晨马志磊査辰吴秀丽
Owner 常州中源工程技术有限公司
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