High-temperature-resistant, safe and explosion-proof quick-opening blind plate structure

Abstract

The invention provides a high-temperature-resistant, safe and explosion-proof quick-opening blind plate structure. The high-temperature-resistant, safe and explosion-proof quick-opening blind plate structure is characterized by comprising a quick-opening blind plate body, a gland, a rotating shaft and the like; the lower side of a hand wheel is connected with a lead screw; the lead screw is arranged at one end of a shaft arm in a sleeving mode; the other end of the shaft arm is arranged on the rotating shaft in a sleeving mode; the lower side of the rotating shaft penetrates through a mountinggroove in the side face of a cylinder body and is fixed through a nut; and the lower end of the lead screw is connected with a connecting head. According to the high-temperature-resistant, safe and explosion-proof quick-opening blind plate structure, the quick-opening blind plate body and the gland are of a coaxial double-plate structure; when the gland is rotated, the outer ring boss inclined face of the gland and the upper edge boss of a cylinder seat generate axial thrust; a quick-opening blind plate is pushed to move horizontally to press a graphite sealing ring; and due to the fact thatthe quick-opening blind plate is fixedly connected with a positioning plate, friction between the quick-opening blind plate and the graphite sealing ring is avoided under the action of a guide shaft and the rotating shaft, so that leakage caused by damage of the graphite sealing ring is prevented, and the service life of the graphite sealing ring is prolonged.

Description

technical field [0001] The invention relates to the technical field of quick-opening blind plates for pyrolysis furnaces, in particular to a high-temperature-resistant, safe and explosion-proof quick-opening blind plate structure. Background technique [0002] The quick opening blind plate is a mechanical device used on the circular opening of the pressure pipe or pressure vessel, and can realize quick opening or closing. [0003] The working temperature of the quick-opening blind plate of the pyrolysis furnace is generally around 400°C, and a large amount of combustible gas is generated in the pipeline during heating. Once the sealing ring is damaged and leaks, it will cause deflagration and other problems. [0004] The existing quick-opening blind plate is limited by the material of the sealing ring, and the operating temperature is generally between -20°C and 90°C; when the pressure pipe or pressure vessel encounters an extreme situation-the pressure suddenly rises or eve...

AI Technical Summary

Problems solved by technology

[0004] The existing quick-opening blind plate is limited by the material of the sealing ring, and the operating temperature is generally between -20°C and 90°C; when the pressure pipe or pressure vessel encounters an extreme situation-the pressure suddenly rises or even explodes, the pressure has no place to release, and the equipment will be damaged. security risks;

[0005] When the existing quick-opening blind plate is sealed, the blind plate and the sealing ring will move relative to each other, which will easily cause damage to the sealing ring and cause leakage

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