Coastal saline region rainwater collection device and use method thereof

Abstract

The invention relates to a coastal saline region rainwater collection device and a use method thereof, belonging to the technical field of water resource utilization. The device comprises a rainwater collection pipeline and a rainwater collection pool communicated with the rainwater collection pipeline, wherein the rainwater collection pipeline is internally provided with a conductometer and a flow meter; the rainwater collection pool comprises a sewage collection pool and a clean water collection pool, and the sewage collection pool and the clean water collection pool are connected with the tail end of the rainwater collection pipeline by a sewage valve and a clean water valve respectively; the rainwater collection device is also additionally provided with a control unit; signal output ends of the conductometer and the flow meter are respectively connected with a signal input end of the control unit; the sewage valve and the clean water valve are electromagnetic valves and are respectively connected with a signal output end of the control unit; the control unit is used for controlling the opening and closing of the sewage valve and the clean water valve according to the real-time conductivity collected by the conductometer so as to realize the separate collection of sewage and clean water. The coastal saline region rainwater collection device is capable of collecting clean rainwater to the utmost extent, thus having a positive significance for alleviating the pressure of water resource.

Description

technical field [0001] The invention belongs to the technical field of water resource utilization, and relates to rainwater recovery and utilization technology, in particular to a rainwater collection device in coastal saline areas and a use method thereof. Background technique [0002] With the development of our country's social economy, the problem of water shortage is becoming more and more serious, and the effect and benefit of rainwater collection and utilization are becoming more and more obvious. In coastal saline areas, after rainwater falls on different underlying surfaces such as roofs, roads, and farmland, it will wash away pollutants and salt on the underlying surfaces, resulting in poor initial rainwater runoff quality, which is difficult to use directly, and due to random rainfall Due to erosion, infiltration, and filling of depressions on the underlying surface, the pollutants and salt content in the runoff are uncertain and fluctuating. However, the current ...

AI Technical Summary

Problems solved by technology

In coastal saline areas, after rainwater falls on different underlying surfaces such as roofs, roads, and farmland, it will wash away pollutants and salt on the underlying surfaces, resulting in poor initial rainwater runoff quality, which is difficult to use directly, and due to random rainfall Due to erosion, infiltration, and filling of depressions on the underlying surface, the pollutants and salt content in the runoff are uncertain and fluctuating. However, the current method of collecting rainwater in coastal saline areas is often to discard the initial rainfall runoff. , and collect all the latter, due to the inaccurate estimation of the pollutants and salt content in the initial rainwater, and the inaccurate grasp of the initial discarded flow, it is easy to cause waste of clean water or sewage collection

For the roof, discarding the initial rainwater runoff can basically ensure that the later rainwater is clean and fresh water; but for hardened roads or bare soil surfaces such as farmland and wasteland, due to the complexity of the rainfall process and surface runoff, the rainwater will Even if the rainwater with high pollutant content in the early stage is discarded, it is still possible to collect rainwater with high pollutant content in the later stage

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