Initial rainwater recycling device and initial rainwater recycling method

Abstract

The invention relates to the field of collection and application of initial rainwater, and discloses an initial rainwater recycling device and an initial rainwater recycling method.The initial rainwater recycling device comprises a rainwater collection buried culvert (2), an initial rainwater adjusting pool (3), an overflow buried culvert (4) and an initial rainwater discharging pump station (5), the rainwater collecting buried culvert is used for converging rainwater collected by a rainwater pipe (1) into the first rain regulating reservoir, and an upper port of the first rain regulating reservoir is communicated with an overflow buried culvert capable of discharging rainwater overflowing from the first rain regulating reservoir into a river channel (0); and an initial rain drainage pump (501) of the initial rain drainage pump station is arranged at the lower end of the initial rain regulating reservoir and is used for pumping rainwater in the initial rain regulating reservoir to a municipal sewage pipeline. The technical problems that rainwater cannot enter a municipal sewage pipe due to lack of a device and a method for recycling and treating first rain in municipal management, and the rainwater mixed with various impurities is directly discharged into a river, so that a river water body is polluted, and a river landscape is influenced are solved.

Description

technical field [0001] The invention relates to the field of collection and application of initial rainwater, in particular to a device for recycling early rainwater and a method for recycling early rainwater. Background technique [0002] Initial rainwater generally refers to the runoff formed by the first 10-15mm of rainfall, which enters the ground water body after leaching the atmosphere, scouring road surfaces, urban buildings, and urban waste. Continued use will exacerbate the crisis of water shortage. [0003] For the calculation method of the scale of the initial rainwater interception system, there are few researches at home and abroad. At present, many methods are only applicable to the engineering design of small rain-collecting areas such as building districts and roofs. For example, the initial rainfall amount is obtained by multiplying the local maximum rainfall depth of 10 minutes by the polluted area, and this is used as the effective volume of the regulatin...

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the lack of recovery and treatment devices and methods for initial rain in municipal management, resulting in rainwater being unable to enter the municipal sewage pipes, and being mixed with various impurities and directly discharged into the river, causing the river water body to be polluted and the river landscape to be affected technical problem

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