Elastic penetration of pipeline

Abstract

The invention discloses an elastic penetration of a pipeline and belongs to the technical field of vibration noise controlling for the pipeline. The penetration comprises a threaded flange, an inner pipe, inner hexagonal screws, limiting compressing plates, an elastic piece, a sleeve, a welding base plate, a sealing gasket and limiting rings of the inner pipe. The threaded flange is fixedly connected with the inner pipe through threads. The limiting rings of the inner pipe are axially fixedly connected to the circumferential surface of the inner pipe in the sleeve. The inner pipe, the limiting rings of the inner pipe and the sleeve are vulcanized together through the elastic piece. The limiting compressing plates are fixedly connected with two end surfaces of the sleeve through the inner hexagonal screws. The welding base plate is welded to the outer circumferential surface of the sleeve. The threaded flange is connected with a system pipeline. A protrusion of the welding base plate is fitted and connected with a groove of a bulkhead. A portion between the protrusion and the groove is sealed by the sealing gasket. The elastic penetration has self-limiting, self-sealing and displacement compensating capabilities, resolves the vibration isolation problem of penetration of the pipeline and meets the requirements of strength, sealing performance and reliability of the bulkhead.

Description

technical field [0001] The invention relates to a marine pipeline accessory, in particular to a pipeline elastic penetrating part with self-limiting, self-sealing and displacement compensation capabilities applied in the field of shipbuilding, and belongs to the technical field of pipeline vibration and noise control. Background technique [0002] Pipeline penetrating parts are one of the important accessories of the ship's pipeline system. It is a pipeline accessory used to penetrate watertight compartments, decks, tanks, etc. and keep the pipelines sealed. Due to the particularity of the whole ship's layout of the ship's pipeline system, it often happens that the pipeline needs to pass through the bulkhead. The upper opening is welded to penetrate the tank to connect the pipelines at both ends of the bulkhead, so as to meet the pipeline penetration requirements. [0003] With the development of the shipbuilding industry and the improvement of ship comfort requirements, th...

AI Technical Summary

Problems solved by technology

Rigid connection penetrating the cabin, the structural vibration of the pipe wall and the pulsation excitation of the fluid medium will be transmitted to the bulkhead; the method of connecting flexible pipes at both ends can isolate the structural vibration of the pipe wall, but it cannot isolate the pulsation excitation of the fluid medium The pipe wall, and then excite the vibration of the bulkhead through the rigid connection part; although the method of filling the damping elastic part between the casing passing through the bulkhead and the pipeline can isolate the structural vibration of the pipe wall and the excitation of the fluid medium, but In the design of the elastic body, it is necessary to consider the sealing pretightening force, the poor displacement compensation ability of the penetrating parts, the insufficient self-limiting ability, the lack of treatment measures when the axial and radial deformation of the elastic body is too large, and the low reliability of use.

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