Axial hot stretch flexible composite plastic high-pressure delivery pipe testing device

A high-pressure conveying pipe, composite plastic technology, applied in the direction of measuring device, analysis material, strength characteristics, etc., to achieve the effect of reducing cost, simple structure and uniform heating

Active Publication Date: 2016-10-26
CHINA NAT HEAVY MACHINERY RES INSTCO
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no multifunctional composite pipe performance testing equipment that can simulate the working environment of the composite pipe in the vertical shaft, so as to obtain parameters such as its axial tension, elongation, internal water injection pressure and temperature of the environmental medium.

Method used

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  • Axial hot stretch flexible composite plastic high-pressure delivery pipe testing device
  • Axial hot stretch flexible composite plastic high-pressure delivery pipe testing device

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with the embodiments and with reference to the accompanying drawings.

[0028] See Figure 1-Figure 2 .

[0029] A test device for axially thermally stretching flexible composite plastic high-pressure delivery pipes, including a composite pipe internal pressurization device, an integrated cylinder, a heating system, a composite pipe clamping device, a mechanical transmission device, a sealing and locking device, and a sensing measurement device:

[0030] One-piece cylinder body, which integrates the force beam and water storage function, including cylindrical cylinder body 7, left cylinder head 5, right cylinder head 15 and top sealing cylinder head 12;

[0031] The composite pipe clamping device is used to clamp the composite pipe, including the pipe end clamp 3 and the shaft clamp 14. The pipe end clamp 3 is installed on the left cylinder head 5 of the integrated cylinder body, and the shaft clamp ...

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Abstract

The invention discloses an axial hot stretch flexible composite plastic high-pressure delivery pipe testing device, and belongs to the technical field of nonmetallic composite pipe hot stretch testing. A flexible composite pipe is prepared through the procedures of composite pipe blank discharging, pipe joint locking, surface processing and the like. The composite pipe is fixed to a clamp of a stretch device; a cylindrical cylinder wrapping the composite pipe is filled with water, and water in the cylinder is heated; a certain amount of water is injected into the composite pipe through a hydraulic pump station, and certain pressure is kept in the pipe. Due to the heat transfer effect of a medium in the cylinder, the surface temperature of the composite pipe reaches a certain fixed value; finally, the composite pressed inside and heated outside is mechanically stretched, and performance parameters of the composite pipe in the hot stretch process is tested with the aid of various sensors on the stretch device. The testing device has the advantages that the structure is compact; due to the cylinder and beam integrated design of the testing device, manufacturing cost can be reduced, and pressurization testing safety can be improved; meanwhile, various performance parameters of pipe blanks with different diameters can be obtained, and the testing device has certain universality.

Description

technical field [0001] The invention relates to the design of a pipe tensile test device, in particular to an axial thermal stretch flexible composite plastic high-pressure delivery pipe test device, which belongs to the technical field of non-metallic composite pipe tensile performance testing. Background technique [0002] The working environment of composite plastic high-pressure transportation industrial pipes is relatively harsh, and it is mainly used in oil and gas, oil well sites of offshore engineering or oil and gas gathering and transportation, water injection, high-pressure alcohol injection and sewage treatment in oil and gas fields. When working in the shaft of a well site or a gas field, the pipeline bears a large tensile force in the axial direction and a high water injection pressure inside, and the outer wall of the pipeline is immersed in a medium with a certain temperature and corrosiveness during operation. The working environment has high requirements on...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/08G01N3/02
CPCG01N3/02G01N3/08G01N2203/0226G01N2203/023
Inventor 程旺军左水利师波田维李强
Owner CHINA NAT HEAVY MACHINERY RES INSTCO
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