Built-in spring tubular reactor

Abstract

The invention discloses a built-in spring tubular reactor. A gland of a shell is provided with heat exchange carrier inlet and outlet; the gland is connected with the shell through a flange; the shell is provided with reaction material inlet and outlet; an S-shaped reaction tube, a spring and a baffle plate are arranged inside the shell; the S-shaped reaction tube comprises a horizontal straight pipe and a U-shaped connecting pipe; the horizontal straight pipe is connected with the U-shaped connecting pipe through a pipe flange; the spring is fixed in the horizontal straight pipe; a metal slender rod is embedded into the pipe flange; one end of the S-shaped reaction tube is connected with the reaction material outlet, and the other end of the S-shaped reaction tube is connected with the reaction material inlet. The built-in spring tubular reactor has the advantages that: the built-in spring tubular reactor has temperature conductivity higher than that of the normal tubular reactor, can effectively prevent coalescence of bubbles and formation of plug flow of gas-liquid two-phase section, and can operate reliably for a long term under the condition that fluid gas content is high. Even through under the condition of low mean velocity, the built-in spring tubular reactor also has a good reaction effect. The built-in spring tubular reactor is suitable to be used for generating gas in the reaction process and forming the reaction process of gas-liquid two-phase flow.

Description

technical field [0001] The invention relates to the technical field of reactors, in particular to a tubular reactor with a built-in spring. Background technique [0002] The reactor is the core equipment in the chemical reaction process. According to its structure, it can be roughly divided into tubular type, kettle type, tower type, fixed bed, etc., and is widely used in chemical mixed reactions of gas, liquid, and solid phases. Tubular reactors are suitable for rapid reaction, strong exothermic, flammable and explosive reaction processes, especially under high temperature and high pressure conditions. [0003] The common strong exothermic reactions in industrial production include nitration, sulfonation, oxidation, diazotization and other reactions, all of which are chemical reactions with large heat release and some are accompanied by a large amount of gas generation. In these reactions, as the reaction progresses, more and more gas is generated in the reaction mixture, ...

AI Technical Summary

Problems solved by technology

If an ordinary tubular reactor is used for this type of chemical reaction, the reaction mixture is more likely to form an air lock phenomenon in the reaction tube, resulting in slug flow, resulting in difficulty in the flow of the reaction liquid, and the time required for the outflow and destruction of the air resistance increases with the reaction time. increase, and even eventually block the reaction tube, resulting in the reactor not being able to run continuously and stably for a long time

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