Rainwater inlet device

Abstract

The invention relates to the field of rainwater treatment, and discloses a rainwater inlet device, which comprises a box body, a flow guide groove, a rainwater strainer, an overflow baffle plate, a filter medium layer and a rainwater pipeline, wherein the rainwater strainer is arranged at the top of the box body; the flow guide groove is arranged in the box body and is located below the rainwaterstrainer; the overflow baffle plate is perpendicularly arranged below the flow guide groove; the overflow baffle plate divides the box body into a rainwater storage and filter area and a water drain area; the filter medium layer is paved at the bottom of the rainwater storage and filter area; the tail end of the flow guide groove is located above the rainwater storage and filter area; the lower part of the overflow baffle plate is provided with a water penetration hole which is used for communicating the rainwater storage and filter area with the water drain area; the water drain area is provided with the rainwater pipeline. The rainwater inlet device provided by the invention can be used for effectively controlling the pollution by moderate and light rainfall and primary radial flow, andis provided with a primary rainwater storage space; a filter filling material for primary rainwater is convenient to replace; the later running and maintenance requirements of a rainwater inlet are low, and overflowing rainwater can be drained from an overflow passage arranged between the flow guide groove and the overflow baffle plate.

Description

technical field [0001] The invention relates to the field of rainwater treatment, in particular to a gully device. Background technique [0002] In recent years, the problem of primary rainwater pollution has received widespread attention at home and abroad. Because rainwater runoff contains a large amount of pollutants such as heavy metals, organic matter, nutrient salts, and suspended particles, if it is not treated effectively, it will be directly discharged into rivers through stormwater pipes, which will definitely cause serious pollution to the urban water environment. Therefore, it is very necessary to control the initial rainwater in the city. [0003] my country does not pay enough attention to the control of initial rainwater runoff in cities. At present, it is limited to the use of initial rainwater abandonment devices for part of the roof runoff, and the separated initial rainwater is discarded to the municipal sewage pipeline system and enters the sewage plant ...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a rainwater outlet device to solve the problem of poor initial treatment and filtering effect of rainwater in the prior art; no initial rainwater storage space; The actual flow capacity of the port cannot reach its design drainage capacity

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