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RTP pipe joint

A technology of pipe joints and left joints, which is applied in the direction of pipes/pipe joints/fittings, pipeline connection arrangement, mechanical equipment, etc., which can solve the problems of poor sealing performance and low pipeline connection strength, and achieve the effect of good sealing performance and high connection strength

Inactive Publication Date: 2015-09-23
RES INST OF SHAANXI YANCHANG PETROLEUM GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The electric fusion hot melt connection method has defects such as low pipeline connection strength and poor sealing

Method used

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Examples

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Embodiment Construction

[0016] see figure 1 , an RTP pipe joint, including a body composed of a cylindrical left joint and a right joint, wherein the outer end 2 of the left joint and the outer end 2' of the right joint are respectively connected with the left pipeline 1 and the right pipeline 1 ', and the left The inner end 4 of the joint and the inner end 9 of the right joint are respectively the connection ends where the left and right joints are connected to each other,

[0017] The inner end 4 diameter of the left joint is larger than the outer end 2 diameter of the left joint, and the inner end 4 of the left joint is provided with an outer tight sleeve 5, and the inner end 9 outer surface of the right joint has a male screw thread, and the outer tight sleeve 5 has a The female thread 8, the male thread and the female thread 8 interlock, the outer surface 6 of the outer tight sleeve 5 and the outer surface 10 of the right joint are square, and the outer surface 10 of the right joint is larger th...

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PUM

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Abstract

The invention provides an RTP pipe joint. The RTP pipe joint comprises a body composed of cylindrical left joints and cylindrical right joints. The outer ends of the left joints and the outer ends of the right joints are connected with left pipelines and right pipelines respectively, the inner ends of the left joints and the inner ends of the right joints are connection ends for connection of the left joints and the right joints, the diameter of the inner ends of the left joints is larger than that of the outer ends of the left joints, outward fastening sleeves are arranged at the inner ends of the left joints, male threads are arranged on the outer surfaces of the inner ends of the right joints, female threads are arranged on the inner sides of the right ends of the outward fastening sleeves, the male threads are meshed with the female threads, the outer surfaces of the outward fastening sleeves and the outer surfaces of the right joints are square, and the outer diameter of the outer surfaces of the right joints is larger than that of the outer ends of the corresponding left joints. The RTP pipe joint solves the problems existing in existing RTP pipeline connection and has the advantages of being high in connecting strength and good in sealing performance.

Description

technical field [0001] The invention relates to the field of pipeline connection, in particular to a composite material RTP pipe joint for oil and gas fields. Background technique [0002] Reinforced Thermoplastic Pipes (RTP, Reinforced Thermoplastic Pipes) are usually mainly composed of three layers, that is, inner and outer plastic layers and a reinforcing layer compounded of reinforcing materials arranged in the middle. RTP pipe has the characteristics of high pressure bearing capacity, good flexibility, and easy construction, and its application range is becoming wider and wider. At present, it has been successfully used in oil and gas fields at home and abroad. [0003] For RTP pipes, the pipes are usually connected by electric fusion-hot fusion connection and mechanical compression (withholding connection). The electrofusion hot melt connection method has defects such as low pipeline connection strength and poor sealing. Contents of the invention [0004] The t...

Claims

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Application Information

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IPC IPC(8): F16L47/16F16L47/14
CPCF16L47/16F16L47/14
Inventor 王珂尹志福吕雷魏彦林刘立司晓明朱世东马彬刘杰南蓓蓓
Owner RES INST OF SHAANXI YANCHANG PETROLEUM GRP