A pyrolysis furnace tube limiting mechanism

CN224280149UActive Publication Date: 2026-05-26WISON (YANGZHOU) CHEM MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WISON (YANGZHOU) CHEM MASCH CO LTD
Filing Date
2025-06-11
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

The existing ethylene cracking furnace tube limiting mechanism requires fixing each tube individually, resulting in low limiting and fixing efficiency, cumbersome operation, and easy damage. In particular, maintenance and repair time is long when there are multiple furnace tubes.

Method used

The system employs relatively movable pipe clamps and drive components. The drive components drive the slide plate and connecting block to move synchronously, thereby achieving one-time limiting and fixing of multiple furnace tubes. Combined with glass fiber cotton buffer pads to buffer thermal expansion and vibration, the system simplifies the installation and disassembly process.

Benefits of technology

It improves the efficiency of limit fixing, simplifies the operation process, protects the furnace tube from damage, and enhances the high temperature resistance and reliability of the limit mechanism.

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Abstract

This utility model relates to the technical field of pyrolysis furnace equipment, specifically a furnace tube limiting mechanism for a pyrolysis furnace. It includes: a relatively movable tube clamp with a buffer pad fixed to its top and a connecting block fixed to its bottom; the connecting block is slidably connected to a support plate; a connecting plate is fixed to one side of the connecting block, with a through hole on its surface that slidably connects to a sliding pin; the bottom of the sliding pin is fixed to a sliding plate, which is slidably mounted on the support plate, with one end connected to a drive assembly; and an mounting plate is fixed to one side of the support plate. This mechanism uses a linear array of multiple tube clamps, utilizing a drive assembly to synchronously move the sliding plate and connecting block, achieving synchronous limiting and fixing of multiple furnace tubes, improving efficiency and simplifying installation and disassembly. The buffer pad is made of glass fiber cotton, combined with the arc-shaped design of the tube clamp, effectively buffering displacement caused by thermal expansion or vibration of the furnace tubes, reducing stress concentration, protecting the furnace tubes, and improving high-temperature resistance and reliability.
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