Inlet diffuser

Abstract

The invention discloses an inlet diffuser, and belongs to the technical field of petroleum refining equipment. The inlet diffuser comprises a barrel body, wherein a partition is mounted in a through-groove inner cavity of an annular bottom plate; a cover plate is arranged at the top of the conical barrel; a lifting lug is welded at the top of the cover plate; rib plates are uniformly arranged on the outer wall of the conical barrel; a ring plate is arranged on the edge of the top of the barrel body; an annular connecting plate is arranged at the bottom of the bottom plate; a second baffle is arranged at the bottom of the annular connecting plate; a barrel body enters the barrel body radially; the cover plate and two groups of conical plates are used for buffering and dispersion, so that the flowing direction of fluid is changed; then through holes in the partition and bulges on the partition are used for flow splitting and buffering, so that the function of reducing impulsive force of the fluid is achieved, and gas-liquid mediums can be uniformly dispersed to the whole cross section of a reactor; a plurality of flow breaking holes in two groups of baffles are used for buffering and uniform distribution, so that a catalytic hydrogenation reaction on a whole bed surface is successfully performed.

Description

technical field [0001] The invention relates to the technical field of petroleum refining equipment, in particular to an inlet diffuser. Background technique [0002] At present, in the petrochemical industry, in order to improve the yield and product quality of light oil, it is often necessary to refine the products obtained from crude oil fractions by catalytic hydrogenation (such as hydrocracking and hydrofining). The basic principles are: In the catalytic hydrogenation reactor, firstly, the two-phase medium of hydrogen gas and raw oil is fed in parallel, and then the raw oil completes a series of reactions with hydrogen under the action of the catalyst in the reactor. In production practice, it is found that whether the reactor can work stably, whether the catalyst can fully play its role, and whether the reaction product can meet the quality requirements depends largely on the inlet diffuser installed at the reactor inlet. The role of the inlet diffuser is to mix the g...

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Problems solved by technology

[0003] The purpose of the present invention is to provide an inlet diffuser to solve the problems of complex structure, poor gas-liquid mixing effect and poor buffering effect of the existing inlet diffuser proposed in the above-mentioned background technology

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