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A building drainage plastic riser with a spiral single blade

A building drainage and single-blade technology, which is applied in buildings, water supply installations, indoor sanitary pipeline installations, etc., can solve problems such as increased noise, floor drain back odor, pressure fluctuations, etc., to prevent back odor, reduce drainage noise, and avoid The effect of alternating shocks

Inactive Publication Date: 2017-03-01
上海深海宏添建材有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the deficiencies and defects of the existing internal spiral plastic drainage pipes, which are prone to pressure fluctuations, water seal damage, floor drain back odor, and noise increase when the displacement increases, by changing the existing internal spiral plastic drainage pipes The shape of the spiral rib structure provides a way to change the shape of the falling water flow in the drainage standpipe, reduce the pressure fluctuation in the pipe during drainage, reduce the speed of the falling water flow, avoid water seal damage and toilet odor, reduce drainage noise, and improve drainage capacity. Construction drainage plastic riser with spiral single blade

Method used

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  • A building drainage plastic riser with a spiral single blade
  • A building drainage plastic riser with a spiral single blade
  • A building drainage plastic riser with a spiral single blade

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Embodiment Construction

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention will be further elaborated below.

[0025] see Figure 5 to Figure 7 The shown building drainage plastic riser with spiral single blade includes a plastic riser body 100, and a spiral single blade 120 is coaxially arranged on the inner wall 110 of the plastic riser body 100 along the axial direction of the riser. The connection between the root 121 of the helical single blade 120 and the inner wall 110 of the plastic riser body is a circular arc transition structure 130, so that the curvature of the connection between the root 121 of the helical single blade 120 and the inner wall 110 of the plastic riser body is greatly reduced, that is, the radius of curvature Increase, when the water flow in the pipe falls along the pipe wall, the water flow is absorbed on the pipe wall and will not leave, forming a good flow stat...

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Abstract

The invention discloses a building drainage plastic vertical pipe with a spiral single blade. The building drainage plastic vertical pipe comprises a plastic vertical pipe body, wherein the inner wall of the plastic vertical pipe body is coaxially provided with the spiral single blade along the axis direction of the vertical pipe; the connection part of the root part of the spiral single blade and the inner wall of the plastic vertical pipe body is of a circular arc transition structure. According to the pipe, the connection part of the root part of the spiral single blade and the inner wall of the plastic vertical pipe body is of the circular arc transition structure; the curvature is reduced greatly (the curvature radius is increased); according to the fluid wall attachment effect theory, when water in the pipe falls off along the pipe wall, the water flow is adsorbed to the pipe wall and cannot be removed so as to form a good wall attachment water film fluidic state, so that the situation that the water flow moves toward the center of the vertical pipe to generate water cork flow is prevented; the fluctuation of pressure in the pipe is reduced; the water drainage flow rate within a certain pressure fluctuation range is improved; the alternative impact by the water flow to the pipe wall is also prevented, so that the pipeline vibration and drained water noise are buffered greatly.

Description

technical field [0001] The invention relates to the field of building drainage pipes, in particular to a building drainage plastic standpipe with a spiral single blade having special drainage performance (the advantages of large drainage capacity, small fluctuation of drainage pressure, low drainage noise, etc.). Background technique [0002] Plastic pipe is a commonly used pipe for building drainage. However, because the inner wall of plastic pipe is smooth and the frictional resistance is small, when it is used for building drainage standpipe, the water flow velocity is relatively high. When the flow rate is slightly larger, it is easy to form water plug flow (water plug flow) : It means that when the building drainage riser is used for gravity drainage, when the flow rate is too large, the thickness of the water film attached to the pipe wall is too large, or the water flow is affected by the structure, the water flow forms a central water mass and falls in the pipe, formi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E03C1/122
CPCE03C1/122
Inventor 颜建萍林辉
Owner 上海深海宏添建材有限公司
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