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Drainage pipeline grating device

A technology for drainage pipes and pipes, which is applied to water supply devices, waterway systems, drainage structures, etc., can solve problems such as easy blockage of filter nets, achieve the effect of improving service life and avoiding hydraulic shock

Active Publication Date: 2015-06-24
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The invention discloses a drainage pipe grid device to solve the problems in the prior art that the filter screen is easily blocked and needs to be cleaned frequently

Method used

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  • Drainage pipeline grating device
  • Drainage pipeline grating device

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Embodiment Construction

[0028] Such as figure 1 and figure 2 As shown, the drainage pipe grid device of this embodiment includes: a water body filtering area 3 with a water inlet pipe 1 and a water outlet pipe 2, and the water inlet pipe 1 and the water outlet pipe 2 are arranged opposite to each other in the horizontal direction.

[0029] In the water body filtration area 3, there are two grid cylinders 4 arranged vertically with the same structure, each grid cylinder 4 has a tangential inlet 41 communicating with the water inlet pipe 1, and the two tangential inlets 41 are connected in parallel into the water inlet pipe. Each grid cylinder 4 is provided with a grid mesh on the surrounding wall, and the mesh holes are used to filter the liquid in the water body.

[0030] Each tangential inlet 41 communicates with the water inlet pipe 1 through a transition pipe 5 arranged in the water body filtering area. In order to reduce the lateral area of ​​this embodiment, two transition pipes 5 are arrange...

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Abstract

The invention discloses a drainage pipeline grating device. The drainage pipeline grating device comprises a water body filtering area with a water inlet pipeline and a water outlet pipeline. A grating cylinder with the vertical axis is arranged in the water body filtering area. The grating cylinder is provided with a tangent inlet communicated with the water inlet pipeline and a grating net arranged on the peripheral wall of the grating cylinder. The grating cylinder serves as a filtering structure, and therefore the defect that impurities easily adhere to an existing straight-flow type filter screen is overcome; the tangent inlet is formed, a water body forms rotational flow in the grating cylinder, and therefore the water flow direction is parallel and tangent to the cylinder wall, the impurities can not adhere to screen holes of the cylinder wall, and the problems that the water filtering area is sharply narrowed due to impurity adhesion, flowing is not smooth, and water overflows out of the water inlet of the water inlet pipeline are solved.

Description

technical field [0001] The invention relates to an urban drainage system, in particular to a drainage pipe grid device. Background technique [0002] Suspended solids are one of the important pollutants in stormwater runoff, especially impurities such as leaves, fibers (hair, fabric), paper, etc. These suspended solids not only pose a serious threat to the water quality of the receiving water body, but on the other hand, these impurities The discharge of water has also caused a great negative impact on the landscape of the water body. Therefore, the effective removal and interception of suspended matter in the drainage pipe network before the rain and sewage are discharged into the river is of great significance to reduce water quality pollution and landscape damage of the receiving water body. [0003] In developed countries, in order to solve the problem of initial rainwater pollution in separate rainwater systems, a large number of initial rainwater pollution control tec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E03F5/06
Inventor 周永潮方磊张萍张仪萍易文涛白航沈东杰王钰丹
Owner ZHEJIANG UNIV
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