A kind of bolt fastening type marine high-voltage RTP joint and its assembly method

Abstract

The invention relates to a bolt fastened type ocean high-pressure reinforced thermoplastic pipe (RTP) connector. The bolt fastened type ocean high-pressure RTP connector is mainly composed of an inner dabber, an outer fastening sleeve and a taper locking sleeve arranged between the inner dabber and the outer fastening sleeve, wherein the inner dabber comprises a sealing flange, a connection shaft neck, a first fastening flange and an inner pipe sleeve; the outer fastening sleeve comprises a second fastening flange and an outer casing pipe with taper; the taper locking sleeve is composed of multiple clamping shaft pieces evenly distributed in the circumferential direction of a pipe body; the multiple clamping shaft pieces are arranged at intervals to form a ring; the clamping shaft pieces are wedge blocks with the thickness continuously decreasing in the axial direction; the inner surfaces of the wedge blocks are inward arc faces, the outer surfaces of the wedge blocks are conical faces, and the conical faces of the clamping shaft pieces are in contact fit with the inner conical face of the outer casing pipe and provided with multiple positioning grooves. The bolt fastened type ocean high-pressure RTP connector is convenient to disassemble and assemble, low in requirement for equipment and working conditions and capable of being reused, and saves the cost.

Description

technical field [0001] The invention relates to a joint device, in particular to a bolt fastening type marine high-pressure RTP joint and an assembly method thereof. Background technique [0002] Reinforced Thermoplastic Pipes (RTP, Reinforced Thermoplastic Pipes) are usually composed of three layers, namely inner and outer plastic layers and a reinforcing layer compounded of reinforcing materials arranged between the inner and outer plastic layers. RTP pipe has the characteristics of high pressure bearing capacity, good flexibility, and easy construction, and its application range is becoming wider and wider. It has been successfully used in marine engineering. [0003] For RTP pipes, pipes are usually connected by electrofusion-hot-melt connection and mechanical compression. The electro-fusion-hot-melt connection has defects such as low pipeline connection strength and poor sealing performance. The mechanical compression method is mainly used for connection. In the high-v...

AI Technical Summary

Problems solved by technology

The main disadvantage of this joint is: the joint is a one-time joint, which cannot be recycled after use. At the same time, due to the serious damage to the outermost layer of the RTP pipe during the crimping process, it will bring unnecessary boundary damage to the entire RTP pipe joint system.

[0004] In addition, in the process of marine construction, due to the complex and harsh conditions at sea, traditional joints have high requirements for equipment and pipelines in the process of sleeve and crimping, and are inconvenient to use; prone to failure

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