High pressure connector lug for fiber enhanced thermoplastic composite plastic tube

A thermoplastic and fiber-reinforced technology, which is applied in the direction of pipeline connection arrangement, pipe/pipe joint/pipe fitting, mechanical equipment, etc., can solve the problems of difficult composite reinforcement and affecting the use pressure of composite pipes, and achieve compact and reasonable structure and ideal heat preservation effect , easy-to-implement effects

Active Publication Date: 2005-03-30
AEROSUN CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This characteristic of polyethylene material makes it difficult to compound and strengthen, which directly affects the increase of the service pressure of composite pipes.

Method used

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  • High pressure connector lug for fiber enhanced thermoplastic composite plastic tube
  • High pressure connector lug for fiber enhanced thermoplastic composite plastic tube
  • High pressure connector lug for fiber enhanced thermoplastic composite plastic tube

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] This embodiment is a fiber-reinforced thermoplastic composite pipe straight pipe high-pressure connection joint, and its structure is as follows figure 1 As shown, it is divided into three layers, the inner layer is polyolefin electrofusion sleeve 1, the middle layer is metal Huff 2 (or metal sleeve), and the outer layer is glass fiber reinforced plastic 3. The polyolefin electrofusion sleeve 1 of the inner layer realizes the connection of two fiber-reinforced thermoplastic high-pressure composite pipes 4 and 7 by electrofusion welding (see figure 2 ).

[0020] The welding melting zone of electrofusion welding bears the tensile shear stress generated by the thrust of internal pressure, but the axial strength of the inner polyolefin electrofusion sleeve 1 is limited. Under the action of internal pressure, the bearing capacity of the axial stress inside the joint The components are mainly metal Huff 2. In order to realize the transfer of axial stress from the polyolefi...

Embodiment 2

[0026] The fiber-reinforced thermoplastic composite pipe flange high-pressure connection joint of this embodiment is as follows: image 3 As shown, its basic mechanism is similar to that of the first embodiment, and it is also divided into three layers, that is, the polyolefin electrofusion sleeve 1 in the inner layer, the metal Huff or metal sleeve 2 in the middle layer, and the glass fiber reinforced plastic 3 in the outer layer. The difference is that the metal sleeve (or Huff) component is designed in the shape of a stepped shaft, and a protruding ring that can be connected to the flange is formed after winding the glass fiber reinforced plastic. Combined flanges 21 and 24 are set on the outermost layer, and the tail end is stuck at the protruding ring formed by the metal stepped shaft wound around the glass fiber reinforced plastics, and positioned axially, so that the connection with the relevant flanges 25 of other pipes or equipment 28 can be realized. connection (see ...

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Abstract

This invention relates to a kind of fiber enhancement type thermoplastic plastic complex pipe high pressure connecting joint. It includes polyolefin capacity sleeve accompany the metal electric fuse; the sleeve has axial sagging structure. The metal sleeve tabling that correspond the axial sagging structure surrounds the capacity sleeve on inside surface. The metal sleeve is surrounded by glass reinforced plastic, the basis material fiber of the glass reinforced plastic enwind along the circle direction of metal sleeve. This invention uses compact structure in order to elevate the working pressure of the fiber enhancement type thermoplastic plastic complex pipe that using this connecting joint and the making is convenient, and easy to carry out.

Description

technical field [0001] The invention relates to a connecting piece for pipeline connection, in particular to a high-pressure connecting joint of a fiber-reinforced thermoplastic composite pipe. Background technique [0002] As we all know, there are two types of plastics, thermoplastic and thermosetting. At present, except for glass steel pipes, the vast majority of plastic pipes are thermoplastic pipes. [0003] Thermoplastic composite pipes use thermoplastics as the matrix material and are combined with other structural layers composed of one or more materials to form a multilayer pipe structure. Composite pipes use the advantages of the constituent materials to complement each other to achieve better technical and economic effects. [0004] Reinforced thermoplastic composite pipes use polyolefin materials as the matrix, and use non-metallic fiber wires, belts or metal wires, belts and other materials as reinforcement materials to improve the pressure resistance of the p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L47/03
Inventor 季明慧路勇郭景星毛杰
Owner AEROSUN CORP
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