A connection structure of pultruded composite pipe

A connection structure and composite pipe technology, which is applied in the direction of hose connection devices, pipes/pipe joints/pipe fittings, mechanical equipment, etc., can solve problems such as unsatisfactory use, achieve high work efficiency, good sealing performance, and low labor intensity in production Effect

Active Publication Date: 2016-04-27
WEIHAI HONGTONG PIPING MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these two pipe joint methods can only meet the requirements of low pressure, and cannot meet the use under high pressure conditions.

Method used

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  • A connection structure of pultruded composite pipe
  • A connection structure of pultruded composite pipe

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Experimental program
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Effect test

Embodiment Construction

[0014] Such as figure 1 , figure 2 As shown, before installing the connection structure of the present invention, the inner lining layer 1, the hoop layer 2, the inner drawing layer 3, the skeleton layer 4, and the outer drawing layer 7 at the same end of the pultrusion composite pipe are first polished and smoothed synchronously, and the drawn The tightening nut 9 and the locking overcoat 6 are set outside the outer tensile layer 7 of the pultruded composite pipe, and then the tightened inner core 5 is installed on the end of the polished and smooth pultruded composite pipe, and the tightened inner core 5 is connected with each layer The axial relative positions between them should be guaranteed to correspond, and interference fit should be adopted between them. Use a glue injector to inject the inner filler 11 from the inner injection hole 14, and the inner filler fills the groove 12 and the inner torsion groove 10; the locking outer layer 6 is close to the outer tensile l...

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Abstract

The invention relates to a connecting structure (shown by an attached figure of summary) of a pultrusion composite pipe, which consists of a tensioning inner core 5, a locking outer sleeve 6, an outer filler 8, a tightening nut 9, an internal supported twist slot 10, an inner filler 11, a groove 12, an external supported twist slot 13, an inner injection hole 14 and an outer injection hole 15, wherein the tensioning inner core is provided with the inner injection hole; the tightening nut is provided with the outer injection hole; the tightening nut and the locking outer sleeve are sheathed into the end part of a pipe body; the tensioning inner core is completely sheathed into the end of the pipe; a groove and the internal supported twist slot are fully filled with the filler which is injected through the inner injection hole; the locking outer sleeve and the tightening nut are close to the tensioning inner core, the tightening nut is screwed, and the locking outer sleeve is driven to move towards the tensioning inner core until the tightening nut is screwed down. The external supported twist slot is fully filled with the filler which is injected through the outer injection hole for curing. The connecting structure of the pultrusion composite pipe is reasonable in design, simple in structure, easy to install, good in sealing performance of pipeline connection, high in loading capacity, strong in environmental stress resistance, low in manufacturing cost and labor intensity as well as high in working efficiency.

Description

technical field [0001] The invention relates to the technical field of connection of pultruded composite pipes, in particular to a connection structure for pultruded composite pipes. Background technique [0002] At present, there are mainly two structural forms for the connection of flexible pipe joints. One is the loose flange type high-pressure hose joint, which is composed of colloid and two loose flanges. The colloid is made of inner and outer synthetic rubber, skeleton nylon cord, pressurized steel ring, and is made by high temperature vulcanization by air blow molding process. Its operating pressure is increased from 1.0Mpa-1.6Mpa (made by mechanical mold process) to 2.5Mpa-4.0Mpa, especially in corrosion-resistant, acid-alkali-resistant, and oil-resistant pipelines, it can show its special effects and improve its performance. service life. The other is the one-piece flange-type high-pressure hose joint, which is made of colloid and two flanges through a special pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L33/34F16L33/02
Inventor 吴新章吕召军赵建强陈鹏
Owner WEIHAI HONGTONG PIPING MATERIALS CO LTD
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