Intelligent detecting and controlling system for chemical dangerous articles in highway bridge runoff

Abstract

The invention discloses an intelligent detecting and controlling system for chemical dangerous articles in highway bridge runoff. The intelligent detecting and controlling system comprises an intelligent detecting and controlling unit communicated with a bridge body water draining pipe outlet, wherein the intelligent detecting and controlling unit comprises a closed detecting water pond; a water inlet of the a detecting water pond is communicated with the bridge body water draining pipe outlet, a liquid trigger controlling switch is arranged at the water inlet of the detecting water pond, and a signal output interface of the liquid trigger controlling switch is connected with an industrial control computer signal input interface; a liquid dielectric constant detecting sensor and a liquid electrical conductivity detecting sensor are arranged in the detecting water pond, and a rain and snow detecting sensor are arranged on the outer side of the detecting water pond; a water outlet of the detecting water pond is communicated with a rainwater precipitating and discharging water pond and an accident leakage liquid collecting pond through pipelines and a drainage electronic control valve of which the opening and the closing are controlled by the industrial control computer separately. The intelligent detecting and controlling system has the advantages that the leakage of the chemical dangerous articles on a highway bridge is detected and controlled in an intelligent manner, so that damage to human safety and ecological environment safety caused by the leakage of the chemical dangerous articles on the highway bridge is effectively avoided.

Description

technical field [0001] The invention relates to a bridge deck runoff water collection system, in particular to an intelligent detection and control system for dangerous chemicals in highway bridge deck runoff. Background technique [0002] With the increasing number of vehicles carrying dangerous goods and chemicals in road traffic, the types of dangerous goods and chemicals are becoming more and more complex. Once a leakage accident occurs, it will cause pollution to local human safety and the surrounding environment, and some even cause ecological pollution. Disasters are especially true for road bridges across rivers, rivers, and seas and road bridges near drinking water sources. Therefore, the environmental protection department requires that the runoff from highway bridge decks cannot be directly discharged to sensitive water bodies; and for highway bridge deck runoff, the key precautions are liquid dangerous goods, liquid chemicals, solid dangerous goods soluble in wat...

AI Technical Summary

Problems solved by technology

The main problem in the bridge deck runoff collection system is: to prevent the pollution caused by bridge deck runoff to the environment, it should be integrated with "management, early warning, detection, control, collection, and treatment" to form a complete set of effective prevention systems. The two intermediate technical links of "detection and control" are missing

The shortcomings of the existing bridge deck runoff collection device are: 1. It is impossible to detect the leakage of chemicals and dangerous goods, and whether the water quality of the bridge deck runoff is polluted by dangerous goods and chemicals, and there are potential safety hazards

If the collection pool is not emptied in time, the collection pool loses its collection meaning

3. For "extra large bridges" (sea-crossing bridges, river-crossing bridges, river-crossing bridges, etc.), bridge deck runoff collection devices cannot be installed due to reasons such as bridge load bearing, driving safety, capacity of collection pools, and construction locations of collection pools. Make the bridge deck runoff of the super-large bridge adopt the "straight row" method

4. The installation of bridge deck runoff collection devices requires a certain construction site. This problem is easy to solve in plain areas, but for mountainous roads, due to the high terrain and difficult construction, it is impossible to construct collection pools at all.

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