Gas inlet device of chloromethane reaction tower

Abstract

The invention discloses a gas inlet device of a chloromethane reaction tower. The device comprises a tower body, and further comprises: a sealed reaction barrel fixedly connected into the tower body;a gas inlet pipe A, one end of which is fixedly communicated with the upper part of the reaction barrel, and the other end of which stretches out of the tower body; a gas inlet pipe B, one end of which is fixedly communicated with the lower part of the reaction barrel, and the other end of which stretches out of the tower body; a plurality of communicating pipes C, one ends of which are fixedly communicated with the reaction barrel, and the other ends of which are fixedly communicated with the middles of corresponding arc-shaped gas outlet pipes D, wherein the communicating pipes C are locatedbetween the gas inlet pipe A and the gas inlet pipe B and are distributed along the circumference of the reaction barrel, gas outlets are formed in the two ends of each gas outlet pipe D, and the gasoutlets of every two adjacent gas outlet pipes D are oppositely arranged.

Description

technical field [0001] The invention relates to an inlet device for a methyl chloride reaction tower. Background technique [0002] The air inlet device is an important part in the reaction tower. The air inlet device can divide the whole gas from the outside, so that the gas is evenly and finely distributed in the reaction tower, and it can also prevent the generation of large bubbles and avoid bubble rupture. It causes vibration and plays a certain role in the stability of the reactor. [0003] The structure of an inlet device affects the gas distribution, which determines the degree of contact between the two substances, which in turn affects the reaction efficiency. Therefore, the performance of an intake device determines whether the chemical reaction can be fully carried out, and determines the reaction efficiency. [0004] There are two air inlets of the methyl chloride reaction tower, one inlet for methanol gas, and one inlet for hydrogen chloride gas. The air inle...

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Problems solved by technology

[0004] There are two air inlets of the methyl chloride reaction tower, one inlet for methanol gas, and one inlet for hydrogen chloride gas. The air inlet device of the traditional methyl chloride reaction tower is made separately, each inlet There is one air intake device, one tower needs to make two air intake devices separately, the workload of making two air intake devices alone is heavy, and each air intake device needs to be fixed separately in the tower, increasing the support in the tower The number of welds increases accordingly

Moreover, the appearance of each air intake device is a circular tube type, and the gas divergence can only be diverged from the surface of one circular tube, and the divergent area is too small. Although several concentric circular tubes are made in the tower to increase the divergent area, this is undoubtedly Increased processing volume

[0005] The reaction area between the two inlet devices is too open, and it cannot ensure that the gas coming out of the upper and lower inlet devices can fully contact and react. Sometimes there may even be a problem that the gas flowing upward at the bottom cannot flow downward with the upper inlet hole. The gas meets to form convection, which causes the raw material gas to directly enter the product gas, and the product has a high impurity content, which increases the workload for the subsequent process of impurity removal

[0006] Moreover, hundreds of thousands of air outlets will be processed on the round pipe, and the outer surface of the round pipe is arc-shaped, and drilling holes on the arc-shaped surface is inconvenient to operate, and the manufacturing process is poor.

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