Fan-shaped cylinder assembly of reforming reactor

Abstract

The invention relates to a fan-shaped cylinder assembly of a reforming reactor, and belongs to the technical field of reforming reaction equipment. According to the fan-shaped cylinder assembly provided by the invention, at least two concave fan-shaped cylinders and at least two convex fan-shaped cylinders are arranged, the concave fan-shaped cylinders and the convex fan-shaped cylinders are arranged at intervals, and the contact surfaces of the adjacent concave fan-shaped cylinders and convex fan-shaped cylinders are tightly attached, so that no gap exists between the adjacent fan-shaped cylinders. The included angle between each contact surface and the radial line of the fan-shaped cylinder assembly is 8-20 degrees, so that the extension direction of the contact surfaces is inconsistent with the flowing direction of a catalyst, and the possibility that the catalyst flows into the contact surfaces is reduced, the flowing dead zone of the catalyst is eliminated, the flowability of raw materials and the catalyst is enhanced, the filling amount of the catalyst is reduced, and the operation investment cost is further reduced. Meanwhile, the internal structures of the concave fan-shaped cylinders and the convex fan-shaped cylinders are welded, so that the structural strength of the fan-shaped cylinder assembly is high, and the service life of the fan-shaped cylinder assembly is long.

Description

Technical field [0001] Technical Field The present application relates to the reforming reaction apparatus, and particularly relates to a fan assembly for a cylindrical reforming reactor. Background technique [0002] Reforming the reforming reactor is a continuous reactor important equipment, the reforming reactor core portion of the inner tube and comprises a central sector tube assembly. Common continuous reforming catalyst in the reactor under the action of gravity, the top of the catalyst hopper through the catalyst feed pipe, the top-down flow through the reactor bed. [0003] Important sector tube member is a continuous reforming apparatus inside the reactor reforming apparatus, mounted on the inner wall surface of the reforming reactor, the reforming reactor pipe with the use, for isolation of the catalyst, so that a uniform distribution of the process medium, diameter through the catalyst bed, the reaction product was out of the reactor into the central tube. Sector tube...

AI Technical Summary

Problems solved by technology

The above-mentioned fan-shaped cylinder assembly has been operated at high temperature for a long time. Factors such as high-temperature thermal expansion, sudden pressure drop, and operation fluctuation are the tests for the fan-shaped cylinder structure. During the operation of the reforming reactor, if the fan-shaped cylinder assembly is dented, cracked, or Such problems will lead to increased catalyst consumption, partial catalyst fluidization, and increased catalyst dust, which will directly affect the production efficiency of the reforming unit, affect the quality of the product and the safe and stable operation of downstream units, and are not conducive to the long-term operation of the unit

[0004] However, because the fan-shaped cylinders are arranged inside the reactor, there are certain gaps between adjacent fan-shaped cylinders, and these gaps form the flow dead zone of the catalyst. These flow dead zones not only make the flow rate of the raw material less, but also increase the Catalyst loading increases operating investment costs

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