Split type mechanical sealing part of elastic sealing ring with rectangular cross section

Abstract

A split type mechanical sealing part of an elastic sealing ring with a rectangular cross section comprises a static ring base flange, a static ring installed on the upper middle portion of the static ring base flange, a static ring sealing ring arranged on the outer side of the static ring, a movable ring arranged above the static ring, a movable ring sealing ring arranged in the movable ring, a movable ring base arranged on the upper portion of the movable ring and the like. The static ring and the movable ring are both members opened side by side from the center, the static ring sealing ring and the movable ring sealing ring are formed by overlapping elastic sealing strips with rectangular cross sections through two end portions. The split type mechanical sealing part changes integral mechanical sealing into split type mechanical sealing, the static sealing ring and the movable sealing ring which are formed by overlapping the elastic sealing strips with the cross sections through the end portions allow small amount of expansion and contraction, consistency in continuity and radial deformation amount cannot be influenced, and the overlapping surfaces are naturally bonded together by means of pressure of a container to be sealed, so that sealing effect is ensured, and maintenance and replacement of damageable parts in mechanical sealing can be finished under the condition that parts on a shaft do not need to be detached.

Description

technical field [0001] The present invention is a mechanical seal, and more specifically, a split mechanical seal. Background technique [0002] Mechanical seals are widely used as a means to transmit power in a closed container while rotating the axial direction while maintaining its closed state. For example, as a closed container, the reactor is an important equipment in the petrochemical industry and one of the main production devices in the entire chemical process. First, the mechanical seal device of the rotating shaft is one of the most frequent parts of the reaction kettle and even the entire process flow. Once the seal fails and needs to be repaired, the integral mechanical seal device is troublesome to disassemble and the maintenance cycle is long. Therefore, people have been working on it. Research and develop the split mechanical seal, in order to complete the replacement of the mechanical seal without dismantling the parts on the shaft. The currently existing s...

AI Technical Summary

Problems solved by technology

For the connection method of the elastic sealing ring, there are still flaws. Obviously, it is not a stable and reliable connection scheme, especially when the moving ring O-ring seal ring needs to move axially and cyclically during work, this connection is even more difficult to ensure its connection and sealing reliability. , the inventor used two ring-shaped O-ring seals to form a semicircle in the previous technical improvement plan, and then bonded together on the split surface to form an integral elastic seal ring seal. The patent number of this invention is ZL200910208462.1, although the reliability Compared with the sealing performance, it has improved relatively, but it has a negative impact on the processing cost and installation operation

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