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Composite structure liquid conveying pipe

A composite structure, conveying pipe technology, applied in the direction of pipes, rigid pipes, pipes/pipe joints/fittings, etc.

Inactive Publication Date: 2016-02-24
TIANJIN PAUWAY POWER EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to address the technical defects of the prior art, and to provide a liquid transport pipe with a composite structure, so as to solve the technical problem that it is difficult for the pipes of the prior art to have good thermal expansion performance on the basis of ensuring strength

Method used

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  • Composite structure liquid conveying pipe

Examples

Experimental program
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Effect test

Embodiment 1

[0015] A composite liquid delivery pipe is characterized in that it comprises a polymethyl methacrylate pipe 1, a felt layer 2, a metal mesh 3, and a nylon layer 4, wherein the felt layer 2 is coated on the outside of the polymethyl methacrylate pipe 1, Wrapped on the outside of the felt layer 2, the nylon layer 4 is wrapped on the outside of the metal mesh 3, and the methyl methacrylate tube 1, the felt layer 2, the metal mesh 3, and the nylon layer 4 are closely attached to each other.

[0016] On the basis of the above technical solutions, the following conditions are met:

[0017] The material of the metal mesh is steel.

[0018] The thickness of the felt layer is 2 mm.

[0019] The outer diameter of the pipe is twice the inner diameter.

Embodiment 2

[0021] A composite liquid delivery pipe is characterized in that it comprises a polymethyl methacrylate pipe 1, a felt layer 2, a metal mesh 3, and a nylon layer 4, wherein the felt layer 2 is coated on the outside of the polymethyl methacrylate pipe 1, Wrapped on the outside of the felt layer 2, the nylon layer 4 is wrapped on the outside of the metal mesh 3, and the methyl methacrylate tube 1, the felt layer 2, the metal mesh 3, and the nylon layer 4 are closely attached to each other.

[0022] On the basis of the above technical solutions, the following conditions are met:

[0023] The thickness of the felt layer is 3 mm.

[0024] The outer diameter of the tubing is 2.5 times the inner diameter.

Embodiment 3

[0026] A composite liquid delivery pipe is characterized in that it comprises a polymethyl methacrylate pipe 1, a felt layer 2, a metal mesh 3, and a nylon layer 4, wherein the felt layer 2 is coated on the outside of the polymethyl methacrylate pipe 1, Wrapped on the outside of the felt layer 2, the nylon layer 4 is wrapped on the outside of the metal mesh 3, and the methyl methacrylate tube 1, the felt layer 2, the metal mesh 3, and the nylon layer 4 are closely attached to each other.

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Abstract

The invention provides a composite structure liquid conveying pipe. The composite structure liquid conveying pipe comprises a polymethyl methacrylate pipe, a felt layer, a metal net, a nylon layer and the like, wherein the polymethyl methacrylate pipe located on the inner layer makes direct contact with conveyed liquid, and as the properties of the polymethyl methacrylate pipe are stable, the polymethyl methacrylate pipe can be used for conveying various kinds of liquid. As polymethyl methacrylate has a high coefficient of thermal expansion, the polymethyl methacrylate pipe can handle the size changes of most kinds of liquid along with the temperature. In order to overcome the defect of low strength of the polymethyl methacrylate pipe, the metal net is arranged to play a role in binding the polymethyl methacrylate pipe, so that the mechanical strength is improved. In order to prevent the metal net from scratching the outer surface of the polymethyl methacrylate pipe, the stretchable felt is arranged between the metal net and the polymethyl methacrylate pipe. Finally, the outermost portion of the composite structure liquid conveying pipe is wrapped with nylon materials with stable performance, so that the whole composite structure liquid conveying pipe has both mechanical strength and thermal expansion properties.

Description

technical field [0001] The invention relates to the technical field of non-metallic pipes, in particular to a liquid conveying pipe with a composite structure. Background technique [0002] Pipe engineering is an important tool for transporting gases and liquids. When performing long-distance transportation tasks, not only the environmental tolerance of the pipe itself must be considered, but also changes in the properties of the liquid due to environmental changes may also impose a burden on the pipe. For example, the cracking of pipes caused by the high coefficient of thermal expansion of the liquid to be transported has occurred from time to time in the prior art. So how to ensure the strength and environmental tolerance on the basis of improving the thermal expansion performance of the pipe has become an urgent technical problem to be solved. Although researchers have made many attempts, a new material that meets the conditions has not been found. Contents of the inve...

Claims

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Application Information

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IPC IPC(8): F16L9/14
CPCF16L9/14
Inventor 刘浩
Owner TIANJIN PAUWAY POWER EQUIP CO LTD
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