Sealing systems for tubular reactors

The sealing system for tubular reactors addresses gas leakage issues by using a weight-pressured sealing ring that accommodates diameter changes and material creep, ensuring a tight seal across varying conditions.

JP7763965B2Active Publication Date: 2025-11-04TECHNIP ENERGIES FRANCE SAS
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Patent Information

Application Number
JP2024550566
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Priority Date
2022-03-02
Filing Date
2023-03-01
Publication Date
2025-11-04
Estimated Expiration
2043-03-01

AI Technical Summary

Technical Problem

Tubular reactors face issues with gas leakage due to manufacturing tolerances, weld shrinkage, weld protrusions, and creep growth, which traditional seals cannot effectively address, especially at high temperatures and varying diameters.

Method used

A sealing system comprising a body with a peripheral wall and a sealing ring, where the body's weight and annular pusher compress the ring against the tubular reactor's inner wall, accommodating diameter changes and ensuring a tight seal through a combination of weight and pressure.

Benefits of technology

The sealing system effectively seals tubular reactors across varying diameters and temperatures, reducing leakage and maintaining a tight fit despite material creep and manufacturing imperfections, with adjustable installation and removal features.

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Abstract

1. A sealing system for a tubular reactor (10), the sealing system comprising a body (60) having an inner wall (11) and a circular cross section (61), at least an upper portion of which comprises a peripheral wall (62) configured to fit against the inner wall (11) of the tubular reactor, the peripheral wall (62) comprising at least an annular lodging portion (22) comprising a sealing portion (ring 50) seated on an annular pusher (40), the pusher (40) being configured to push the sealing ring (50) into the peripheral wall (62) of the body, the body (60) having a sufficient weight to press the sealing ring (50) against the inner wall (11) of the tubular reactor (10).
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