Central pipe for radial moving bed reactor

Abstract

The invention discloses a central pipe for a radial moving bed reactor, and aims to solve the problem that a perforated inner cylinder and a screen of an existing central pipe may be cracked. The central pipe is provided with a perforated inner cylinder, a screen, a bottom plate, a blind cylinder and a blind plate. An inner boss and an outer boss are arranged on the bottom plate from inside to outside around the central hole of the bottom plate. The top of the perforated inner cylinder is welded to the blind plate, and the bottom is welded to the top of the inner boss. The top of the blind cylinder is welded to the blind plate, the tops of screen bars in the screen are welded to the bottom of the blind cylinder, and the bottoms of the screen bars are welded to the top of the outer boss. The length of the height of the bottom edge of the isosceles triangle on the cross section of each screen bar and the thicknesses of the outer boss, the perforated inner cylinder, the inner boss, the blind cylinder and the blind plate are given. The bottom plate, the inner boss and the outer boss are integrally machined parts. The central pipe is mainly applied to a radial moving bed reactor in thepetrochemical industry.

Description

technical field [0001] The invention relates to a central tube for a radially moving bed reactor. Background technique [0002] In the petrochemical industry, the moving bed reaction process (such as continuous reforming) is an important means to ensure the continuous production of high-quality oil and chemical products, and the core equipment used is the radial moving bed reactor. The core components of the radial moving bed reactor (abbreviated as the reactor) are the central tube and the fan-shaped tube (or outer net). The catalyst passes through the annular space formed by the central tube and the fan-shaped cylinder (or outer net) from top to bottom inside the reactor, and the reaction medium passes through the catalyst bed radially from the fan-shaped cylinder (or outer net) to react, and the reaction generated after the reaction The product enters the lumen of the central tube. In an existing radial moving bed reactor, the reaction medium inlet is located on the sid...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a center pipe for radially moving bed reactors, to solve the problem that the opening inner cylinder and the screen of the existing center pipe will crack

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