Intelligent urban overpass rainwater comprehensive recycling method

Abstract

The invention discloses an intelligent urban overpass rainwater comprehensive recycling method. When the environment temperature received by a PLC from an environment temperature sensor is lower thana set value, a submersible pump is no longer started, and deicing liquid is added to a clean water storage device; when a pavement friction coefficient received by the PLC from a pavement state sensoris lower than a set value, the PLC controls a water suction pump to start, a spraying electromagnetic valve to open and an electromagnetic directional valve to switch to a spraying pipeline; and whena signal indicating that the pavement friction coefficient of the pavement state sensor is higher than the set value is received by the PLC, the PLC stops the water suction pump, closes the sprayingelectromagnetic valve and switches the electromagnetic directional valve to a middle position. The requirement for water spraying temperature reduction of an overpass pavement in high-temperature weather in summer is met, the requirement for automatic irrigation of vegetation below an overpass is met as well, and meanwhile, when it is snowing in winter, a PLC control system can control spraying ofthe deicing liquid on the pavement to prevent the pavement from being iced according to the external temperature requirement.

Description

Technical field [0001] The invention relates to a method for comprehensive recycling and utilization of urban viaduct rainwater. Background technique [0002] With the rapid growth of urban population density in my country, the problem of urban traffic congestion has become more and more serious. In order to achieve the purpose of improving urban traffic capacity, saving space and reducing construction costs, more and more cities have begun to build viaducts in urban areas. The construction of the viaduct has improved the traffic environment, but it also faces problems such as the discharge of a large amount of rainwater during the rainy season, the high temperature of the road surface in the summer high temperature season, and the prone to ice and snow in the winter. Such problems can easily cause damage to the viaduct, cause serious traffic accidents, and then bring huge losses to people's lives and property. [0003] In order to solve the above problems, a simple and practical...

AI Technical Summary

Problems solved by technology

These methods do not recycle rainwater very well, resulting in insufficient water resources on the one hand, but on the other hand, they are causing a large amount of water loss, which is not conducive to the sustainable development of the economy and society.

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