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Drain outlet drop treatment method

A treatment method and technology of drainage outlets, which can be used in drainage structures, waterway systems, water supply devices, etc., and can solve problems such as environmental pollution.

Inactive Publication Date: 2010-08-25
GUIYANG AL-MG DESIGN & RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the lifting of the pump, the rain (sewage) water has a certain pressure at the outlet, so it is more serious for the receiving water body or the foundation and ditch bottom of the receiving ditch. In addition, the splashing of rain (sewage) water will also pollute the environment.

Method used

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Embodiment Construction

[0011] Embodiment of the present invention: when the drainage pipe (1) enters the drainage ditch (2), turn processing is performed, the turning angle is 90 degrees, and the connection radius is 5 times the pipe diameter. Carry out chamfering treatment on the section at the outlet of the drain pipe (1), the angle of chamfering is 30 degrees. The drainage ditch (2) is treated with falling water in the turning section of the drainage pipe (1), the height h from the bottom to the water surface of the drainage ditch (2) is 4 times d, and the length L of the bottom of the drainage ditch (2) is 14 times the drainage pipe ( 1) The diameter d. The slope design of the ditch bottom drainage in the water drop section shall not be less than 0.30%. The ditch bottom and ditch wall masonry materials and requirements of the drop section are consistent with those of the receiving ditch.

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Abstract

The invention discloses a method for processing the water outlet, which arranges an angle at the section where the drainage pipe (1) enters the drain, and processes inclined cutting at the outlet of drainage pipe. Wherein, the bottom length L of drain is 14 times of the diameter d of drainage pipe and the distance h from its bottom to the water surface of drain is 4 times of d. the invention via the section process of drainage pipe and the process of drain bottom can reduce the splash of rain (waste water) and reduce the erosion on the drain bottom.

Description

Technical field: [0001] The invention relates to a treatment method for drain water drop, which is mainly used for water drop treatment at a drain outlet after rainwater or sewage is raised. Background technique: [0002] Normally, the drainage of rainwater in plain areas and the discharge of treated sewage need to be lifted and then discharged to the wastewater receiving water body or ditch through drainage pipes. Due to the lifting of the pump, the rain (sewage) water has a certain pressure at the outlet, so it is more serious for the scour of the receiving water body or the foundation and ditch bottom of the receiving ditch. In addition, the splashing of rain (sewage) water will also pollute the environment. . Invention content: [0003] The purpose of the present invention is to provide a method for treating water drop at the drain, which involves obliquely cutting the rain (sewage) water pipe near the water outlet to increase the cross-sectional area of ​​the water o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E03F3/04E03F5/00
Inventor 王时芬
Owner GUIYANG AL-MG DESIGN & RES INST