Improved polymerization reactor

Abstract

The invention belongs to the technical field of chemical equipment and relates to a polymerization reactor, particularly to a reactor composed of a shell-side cylindrical shell and a tube-side heat exchange tube, especially to a reactor for polymerization in PAVC production. The reactor provided by the invention comprises a structure composed of the shell-side cylindrical shell and the tube-side heat exchange tube and is characterized in that ring runners are arranged along the circumference of the shell-side cylindrical shell at conduction oil inlet and outlet of the shell-side cylindrical shell; the shell-side cylindrical shell inside the ring runners is provided with several small holes for flowing of conduction oil; three baffling shoe plates are arranged along the direction of the heat exchange tube inside the shell-side cylindrical shell; a big hole is disposed in the center of the middle baffling shoe plate; and the upper and lower baffling shoe plates are provided with several small holes. According to the invention, conduction oil uniformly enters the shell side so as to make the shell-side temperature to be controlled and make the temperature rise and decrease uniformly. Production efficiency is raised while a catalyst is used to the maximum. Through improvement of the equipment structure, temperature difference of the conduction oil inlet and outlet is well controlled, temperature variation is controlled within 1%, activity of the catalyst is raised by 10%, and production capacity is enhanced by more than 30%.

Description

technical field [0001] The invention belongs to the technical field of chemical equipment, and relates to a polymerization reactor, in particular to a reactor composed of a shell-side cylinder body and a tube-side heat exchange tube, especially for polymerization reaction in PAVC production. Background technique [0002] In the traditional polymerization reactor, the heat transfer effect of the reactor is poor, and the content of impurity acetaldehyde in the reaction product increases, so that the reaction polymer increases, the heat transfer effect is worse, and the impurity is further increased, thus forming a vicious circle . [0003] In addition, the polymerization reaction is an exothermic reaction, and the heat released by the reaction is only used to preheat the circulating air, and most of the remaining heat is taken away by the heat transfer oil cooler and the mixed cooling system, which consumes a lot of cooling water and causes precious natural waste . Contents...

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Problems solved by technology

[0002] In the traditional polymerization reactor, the heat transfer effect of the reactor is poor, and the content of impurity acetaldehyde in the reaction product increases, so that the reaction polymer increases, the heat transfer effect is worse, and the impurity is further increased, thus forming a vicious circle

[0003] In addition, the polymerization reaction is an exothermic reaction, and the heat released by the reaction is only used to preheat the circulating air, and most of the remaining heat is taken away by the heat transfer oil cooler and the mixed cooling system, which consumes a lot of cooling water and causes precious natural waste

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