Axial seal hoop quick-opening horizontal type deep sea simulation cabin

Abstract

The invention discloses an axial seal hoop quick-opening horizontal type deep sea simulation cabin which comprises a front end cover, a barrel body, a rear end cover, a saddle, a circular hoop and a hoop locking mechanism. The front end cover is placed on the saddle and supported by a movable frame. One end of the front end cover stretches out in the axial direction to form an annular step, the annular step is provided with at least two rectangular grooves, and O-shaped rubber rings I are mounted in the rectangular grooves. The annular step stretches into the end of the barrel body, the annular step and the inner wall of the barrel body are sealed through the O-shaped rubber rings I, and the front end cover and the end of the barrel body are connected and locked through the annular hoop and the hoop locking mechanism. A cylindrical boss is arranged at one end of the rear end cover in the axial direction. The cylindrical boss is provided with a rectangular groove in the circumferential direction, the cylindrical boss stretches into the tail end of the barrel body, and the cylindrical boss and the inner wall of the barrel body are sealed through an O-shaped rubber ring II in the rectangular groove. The rear end cover is connected with the tail end of the barrel body through a flange. The barrel body and the front end cover are in an axial seal structural mode, and therefore the sealing reliability of the horizontal type deep sea simulation cabin can be improved obviously.

Description

technical field [0001] The invention belongs to the technical field of marine engineering (especially deep-sea) testing, and relates to a test container capable of simulating a deep-sea 4500m high-pressure environment, in particular to an axially sealed clamp quick-opening horizontal deep-sea simulation cabin. Background technique [0002] Equipment and instruments used for deep diving, resource exploration, and underwater operations in marine engineering often work in an environment of hundreds of meters or even thousands of meters under the sea. As the depth of the ocean increases, the seawater that such equipment and instruments need to withstand The back pressure is also getting higher and higher, and once a failure occurs, it will bring high construction and maintenance costs. In order to verify whether this type of equipment and instruments can work normally and reliably in the deep-sea high-pressure environment, a large number of tests such as pressure bearing and sea...

AI Technical Summary

Problems solved by technology

When applied to a deep-sea simulation cabin with a water depth of more than 4000m (that is, the interior must withstand a pressure of more than 40MPa), the disadvantages of this end-face-sealed clamp quick-open cover structure are mainly manifested in: because the clamp bears the medium pressure transmitted by the top cover And the axial force caused by the specific pressure of the seal is too large to cause the clamp to bend and deform, and the upper and lower flanges will open on the contact surface to produce a flare that is large on the outside and small on the inside. The greater the pressure in the cabin, the more serious the bending deformation of the clamp. The flaring on the contact surface of the upper and lower flanges will also be larger, which will significantly reduce the sealing ability of the O-ring rubber ring between the end faces of the two flanges, and even cause the seal to fail. Even if the stiffness and strength of the clamp are increased, it is difficult It meets the requirements, so the patents or documents that apply the clamp quick-opening cover structure to the horizontal simulated hyperbaric chamber with a water depth exceeding 4000m are very rare at home and abroad

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