A pipe network runoff purification device based on the principle of cyclone sand settling

Abstract

The invention relates to a pipe network runoff purification device based on the principle of swirling sand settling, and belongs to the technical field of sewage treatment. Including tank body, water inlet pipe, outlet pipe, deflector, support body, energy dissipation grid and sand collection bucket, the water inlet pipe is connected to the cylindrical pool body at the low position along the tangential direction of the pool body, and the water outlet pipe is connected at the high position along the pool body The tangent direction is connected to the pool body, and the outer edges of the water inlet pipe and the water outlet pipe are respectively tangent to the pool body; the axes of the water inlet pipe and the water outlet pipe are located on the same vertical plane; the upper edge of the opening of the water inlet pipe inside the pool body is lower than the opening of the water outlet pipe At the lower edge, a half-moon-shaped deflector is arranged horizontally between the two; a support is provided at the bottom of the pool body, and an energy dissipation grid is supported on the support body, and the space of the pool body under the energy dissipation grid forms a sand collection bucket ; The energy dissipation grille is a split-type grille, which is composed of several fan-shaped grilles to form a complete circular grille. The invention effectively solves the deficiencies existing in the existing swirling sand settling devices for drainage pipes.

Description

technical field [0001] The invention relates to a sand settling device for removing mud and sand in drainage pipes, in particular to a pipe network runoff purification device based on the principle of swirling sand settling, and belongs to the technical field of rain / sewage treatment. Background technique [0002] Solid particles such as mud and sand in rainwater pipes are discharged into the water body with the runoff of rainwater, which will cause pollution of the receiving water body, and the deposition of particles in the pipes will seriously affect the drainage capacity of the system, which is an important factor causing urban waterlogging. Cyclone grit chamber technology has been successfully applied in the field of sewage treatment, but most of these grit chambers are used at the front end of sewage treatment plants, which are characterized by large flow rates, need for power agitation, and complex pool types. In order to avoid pipeline deposition, rainwater pipelines...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the above-mentioned defects of the prior art, the present invention designs a pipe network runoff purification device based on the principle of cyclone grit settling, which effectively solves the problems of the existing drainage pipe swirl grit settling devices.

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