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Water pipe structure capable of preventing water pipe from freezing crack

A water pipe, freezing and cracking technology, applied in the direction of pipes/pipe joints/fittings, pipes, rigid pipes, etc., can solve the problems of hard water pipes, metal hard water pipes, etc.

Inactive Publication Date: 2006-08-23
梁嘉麟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] During the use of existing water pipes at low temperatures, once the water freezes in the water pipes and continues to cool down, the ice will expand in the water pipes. Although the expansion volume is limited (very small), however, it will cause the hard water pipes to burst, and even Cause high-strength metal hard water pipes to burst

Method used

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  • Water pipe structure capable of preventing water pipe from freezing crack

Examples

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Embodiment Construction

[0012] As we all know: if the volume of ice in the water pipe at 0°C is "0.92", then the volume of ice will expand to "1.00" when the temperature continues to cool down to -4°C. It can be deduced that the thickness of the non-metallic foam flexible liner 2 is approximately equal to When the internal diameter of the water pipe 1 is "0.03" times, the compressibility formed by the non-metallic foam flexible liner 2 is enough to ensure that: when the 0°C ice in the water pipe 1 continues to cool down to -4°C, although the volume of the ice expands, However, the expansion and bursting of the water pipe 1 will not be caused.

[0013] To sum up, taking a metal water pipe 1 with an inner diameter of 20 mm as an example, as long as a layer of non-metal foam flexible liner 2 with a thickness of 0.6 mm is attached to the inner wall of the pipe, when the temperature is lowered to -4°C, the metal Water pipe 1 can not be expanded and cracked by ice.

[0014] When implementing the present i...

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Abstract

The water pipe structure capable of preventing frost crack features that onto the inner wall, one anticorrosive lining of foamed rubber and / or foamed plastic in the thickness not smaller than 0.06 times the water pipe inner diameter is attached. The lining has smooth surface to avoid water infiltration and seal inner air bubbles. The non-metal foamed material possesses certain compression performance, and in the condition of water freezing, it provides the expansion space for the ice to expand in further temperature lowering so as to avoid frost crack of the water pipe.

Description

Technical field: [0001] The invention relates to water pipe structure technology. Background technique: [0002] During the use of existing water pipes at low temperatures, once the water freezes in the water pipes and continues to cool down, the ice will expand in the water pipes. Although the expansion volume is limited (very small), however, it will cause the hard water pipes to burst, and even Cause high-strength metal hard water pipes to burst. [0003] Many types of existing iron metal water pipes, in order to prevent its inner wall from rusting during use, a layer of hard non-metallic anti-corrosion liner (1-3 mm thick non-toxic plastic layer) is attached to the inner wall of the structure. . Invention content: [0004] Purpose of the present invention: [0005] An improvement in the material selection of the water pipe of the above structure makes the non-metallic anti-corrosion liner increase the function of preventing the water pipe from freezing and cracking....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L9/147
Inventor 梁嘉麟
Owner 梁嘉麟
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