Intelligent bridge floor snow melting and deicing system utilizing shallow geothermal energy

Abstract

The invention discloses an intelligent bridge floor snow melting and deicing system utilizing shallow geothermal energy. The intelligent bridge floor snow melting and deicing system includes an underground heat collecting system, a bridge floor cooling system, a ground source heat pump, a pavement condition detector and a PLC control system, the underground heat collecting system is a circulation loop formed by horizontal and vertical buried tubes, the bridge floor cooling system is a circulation loop formed by a heat conveying tube, a cooling tube and a refluxing tube, and the pavement condition detector is embedded in the surface layer of a bridge floor and is connected with the PLC control system. The underground heat collecting system is connected with the bridge floor cooling system through the ground source heat pump. The pavement condition detector can acquire the weather information of the bridge floor in real time and deliver a result to the PLC control system, and the system judges whether snow or ice exists on the bridge floor or not. If the snow and ice exist, the ground source heat pump is started to run, and the bridge floor is heated through heat exchange to automatically remove the ice and snow on the bridge floor; and if no snow or ice exists, the ground source heat pump is automatically turned off. The intelligent bridge floor snow melting and deicing system has the advantages of high efficiency intelligence, energy saving, environmental protection, high geothermal utilization rate and wide application prospect.

Description

technical field [0001] The invention belongs to the field of utilization technology and application of shallow geothermal energy, and in particular relates to an intelligent snow-melting and deicing system for bridge decks using shallow geothermal energy, which is suitable for bridge decks in cold and humid environments prone to snow accumulation or freezing. Background technique [0002] The freezing of snow on roads and bridges will not only make it difficult for vehicles to drive, affect driving safety, and cause traffic accidents, but also cause serious traffic congestion and large-scale traffic paralysis, resulting in huge economic losses. In recent years, major traffic accidents and large-scale traffic interruptions caused by snow and ice on roads and bridges in my country have occurred from time to time. Considering the significant impact of road and bridge ice and snow on traffic safety, transportation and economic development, road snow melting It plays a vital role ...

AI Technical Summary

Problems solved by technology

[0003] At present, the commonly used deicing and snow melting methods are mainly divided into two categories: passive snow melting and deicing technology and active snow melting technology. Among them, passive snow melting and deicing technology mainly includes manual removal method, mechanical removal method and chemical snow melting method. These methods have been widely used. In my country's road snow melting and deicing projects, there are problems such as destroying the road (bridge) surface and polluting the environment, high cost, and limited use conditions.

Active snow melting technology mainly uses functional materials such as conductive concrete and electric heating cables to heat the road or bridge deck to achieve the purpose of melting snow and ice. Among them, the electric heating cable snow melting method has compatibility problems with the road surface structure, and the surface of the electric heating cable Wrapping a thicker insulating layer has lower thermal efficiency and higher manufacturing costs; although the conductive concrete method is better combined with the pavement layer, it generates heat slowly, and it is difficult to achieve uniform mixing of materials

Moreover, these two methods all convert electrical energy into heat energy during operation, which inevitably consumes a large amount of electrical energy and has high operating costs.

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