Hard sealing plane elastic gate plate pair

Abstract

The invention discloses a pair of hard-sealed planar elastic gates. Its components include two symmetrical gates. The outer sides of the two gates are hard sealing surfaces, and the inner sides of the two gates are respectively symmetrical. The position is provided with a hollow positioning shaft, and the outer diameter of the two hollow positioning shafts is jointly installed with the positioning seat sleeve through the rectangular key of the upper gate and the rectangular key of the lower gate, and the inside of the two hollow positioning shafts is jointly arranged Spring, the two gates are connected as a whole by correspondingly provided two upper spring pins, two middle spring pins and two lower spring pins. As for the tension seat of the gate, the lower part of the two gates 5 is concentrically provided with a medium channel. Its advantages are: it can be used in the process environment of high temperature and high pressure, effectively solve the conventional problems that have been prone to occur in the pipeline transportation process in the past, avoid possible valve internal leakage and stuck accidents, and at the same time ensure that the dynamic and static sealing surfaces are not strained, thereby Extend the service life of the gate valve.

Description

technical field [0001] The invention relates to the technical field of planar gate valves, more specifically, the invention relates to a hard-sealed planar gate pair capable of high temperature resistance and without vulnerable non-metallic parts. Background technique [0002] At present, there are still some defects in the technology of pipeline plane gate valves used in the production, storage and transportation of hazardous chemicals. Statistical analysis found that: the rubber seals used in the floating sealing seats of pipeline plane gate valves determine that they are not resistant to high temperature and Due to the complex and changeable medium environment in the pipeline process of the petrochemical industry, the sealing and wearing parts of some valves often fail to form internal leakage, and even the gate plate is broken due to the change of the installation and coordination of the floating seal seat. The jamming causes more accidents, which leads to frequent repai...

AI Technical Summary

Problems solved by technology

[0002] At present, there are still some defects in the pipeline plane gate valve technology used in the production, storage and transportation of hazardous chemicals. Statistical analysis found that: the rubber seal used in the left and right floating sealing seats of pipeline plane gate valves determines that it is not resistant to high temperature and Due to the complex and changeable medium environment in the pipeline process of the petrochemical industry, the sealing and wearing parts of some valves often fail to form internal leakage, and even the gate plate is broken due to the installation and coordination of the floating seal seat. The jamming causes more accidents, which leads to frequent maintenance, delays in work, time-consuming, affects production, and at the same time brings certain risks and hidden dangers to the storage, transportation and production of hazardous chemical media

From the analysis and general review of the hidden dangers of hazardous chemicals pipelines and storage tanks in today's petrochemical production sites, it is found that for the existing planar gate valves, the main reason for their frequent damage and accidents is the structural design of the product There are technical defects that highlight the imperfection of the product's performance

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