Fixed pipe plate type reboiler and applications thereof, and distillation method

Abstract

The invention relates to the field of chemical industry equipment, and discloses a fixed pipe plate type reboiler, applications of the fixed pipe plate type reboiler in a distillation process, and a distillation method. The fixed pipe plate type reboiler comprises an upper sealing head (10), a shell (20) and a lower sealing head (30), wherein an upper pipe plate (21), a lower pipe plate (22) and aheating pipe array (23) positioned between the upper pipe plate (21) and the lower pipe plate (22) are arranged inside the shell, the lower sealing head comprises a lower sealing head straight cylinder section (31) and a cone section (32), the lower sealing head straight cylinder section is provided with the inlet of a material inlet pipe (33), and the material inlet pipe is arranged along the tangential direction of the lower sealing head straight cylinder section. According to the present invention, with the fixed pipe plate type reboiler, the solid impurity and the liquid in the material can be effectively separated, and the problem of the low heat exchange efficiency of the reboiler due to the adhesion of the coked solid impurity in the material to the pipe array of the reboiler at the high temperature can be avoided.

Description

technical field [0001] The invention relates to the field of chemical equipment, in particular to a fixed tube plate reboiler, the application of the fixed tube plate reboiler in a distillation process, and a distillation method. Background technique [0002] Reboiler (evaporator) is an important basic chemical equipment, widely used in distillation, evaporation and other processes. Classified from the form: vertical thermosiphon reboiler; horizontal reboiler; falling film, rising film reboiler; forced circulation reboiler; scraper reboiler, etc. [0003] Reboilers are generally used in the distillation and purification process of liquid materials in petrochemical and chemical synthesis, and are often used in conjunction with rectification columns. , the heating tubes are welded in the holes, and the heating tubes open to the upper and lower ends of the reboiler. The space formed between the upper and lower tube plates is the heating space, and the heating medium is passed ...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the defect that the reboiler in the prior art cannot effectively process the material containing solid impurities, and provides a fixed tube plate reboiler

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