Device and method for replacing sealing ring of spherical crown observation window

Abstract

The invention relates to a replacement device and replacement method for a sealing ring of a spherical crown type observation window, including a flange, on which a window seat is installed through a plurality of O-rings, and a spherical crown type observation window is installed on the window seat , the circumferential surface of the connection between the spherical crown type observation window and the window seat is equipped with a pressure ring through a pressure ring rubber pad and a sealing device, and at the same time, the pressure ring is locked with the window seat through a hexagon socket bolt; the circumference of the window seat There are also a plurality of replacement tooling installed at intervals in the direction, including a support. A right-angle frame extends upward from the rear end of the support. One of the right-angle sides of the right-angle frame has a through hole, and a long bolt is installed at the through hole. It is connected with the window seat and the flange, and locked by the first nut. The bottom of the front end of the support extends downwards with an installation sleeve, and a screw rod is installed in the installation sleeve, which is fixed by the second nut. The bottom of the screw rod is fixed with a pressing plate, and the bottom surface of the pressing plate is resisted by the tooling rubber pad and the spherical crown type observation window. Reliable work, easy disassembly and assembly.

Description

technical field [0001] The invention relates to the technical field of maintenance of manned submersibles, in particular to a replacement device and method for sealing rings of spherical crown observation windows, which are suitable for large-size spherical observation windows. Background technique [0002] In order to meet the needs of the occupants to maximize the observation field, the large-size spherical crown observation window has gradually become the standard design of manned submersibles. In order to prevent external sea (fresh) water from entering the manned compartment, a sealing ring is usually installed in the sealing groove formed by the spherical crown observation window, the metal window seat and the pressure ring. Due to the aging of the sealing ring, in order to ensure the sealing performance of the structure, the sealing ring needs to be replaced regularly. Since the spherical crown observation window is fixed only by the preload of the pressure ring, the...

AI Technical Summary

Problems solved by technology

The conventional replacement method is to return the submersible to the factory for maintenance. The spherical observation window, the window seat and the pressure ring are removed as a whole, and then placed horizontally to remove the pressure ring and replace the sealing ring, and then reinstall it to the submersible. The whole process is time-consuming, laborious and long-term. ,high cost

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