Monitoring device and monitoring method for internal environment of super-huge bridge box girder

Abstract

The invention relates to a monitoring device and monitoring method for internal environment of a super-huge bridge box girder. The invention discloses a monitoring device for internal environment of asuper-huge bridge steel box girder. The device comprises a plurality of sets of dehumidifying mechanisms arranged in a steel box girder; the dehumidifying mechanism comprises a plurality of environmental sensors, a plurality of pipelines, a dehumidifying fresh air unit and a controller; the dehumidifying fresh air unit is arranged in one compartment of a plurality of compartments and is in circuit connection with the controller, an inner tuyere of the dehumidifying fresh air unit communicates with a U-shaped rib of the steel box girder, and an external tuyere communicates with the outside through the bridge bottom; a plurality of environment sensors are uniformly distributed in the plurality of continuous compartments to be monitored and are in circuit connection with the controller, andthe environment sensors are used for collecting temperature, humidity and harmful gas concentration in the compartments; a pipeline is respectively arranged above and below the compartment along the stretching direction of the compartment; a plurality of tuyeres are formed in the pipeline, and the pipeline communicates with the internal tuyere of the dehumidifying fresh air unit through the U-shaped rib of the steel box girder. According to the monitoring device and the monitoring method in the invention, the defect that a single collection point is poor in collection accuracy is avoided, andthe monitoring effect is improved.

Description

technical field [0001] The invention relates to a monitoring device and a monitoring method for the internal environment of a bridge box girder, in particular to a monitoring device and a monitoring method for the internal environment of a super-large bridge box girder, and belongs to the technical field of bridge monitoring. Background technique [0002] At present, the dehumidification system used in the internal environmental monitoring device of the super-large bridge box girder with a span of more than 1Km and a single span of more than 150m adopts single-point temperature and humidity collection, and starts and stops the dehumidifier by simply triggering PLC control. The distribution of temperature and humidity collection points in this system is unreasonable, and it cannot reflect the actual temperature and humidity in the overall space of the box girder well. Therefore, the dehumidifier is started and stopped based on single-point data, resulting in untimely dehumidif...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a super-large bridge steel box girder internal environment monitoring device and monitoring method to solve the technical defects of the existing monitoring device, such as low monitoring accuracy, insufficient dehumidification effect, and large dehumidification power consumption

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