Rainwater collection and automatic irrigation system for greenbelts of viaduct bridges

Abstract

The invention provides a rainwater collection and automatic irrigation system for greenbelts of viaduct bridges, and belongs to the technical field of automatic irrigation. The rainwater collection and automatic irrigation system is characterized in that a water distributer is connected with a multi-stage sedimentation tank type rainwater purification device and an urban sewage pipe network, the multi-stage sedimentation tank type rainwater purification device is connected with a reservoir with overflow holes, and the reservoir with the overflow holes is connected with an above-bridge automatic irrigation unit and an under-bridge automatic irrigation unit. Compared with existing irrigation techniques for the greenbelts of the viaduct bridges, the rainwater collection and automatic irrigation system has the advantages that the water distributer can control the amount of water entering the multi-stage sedimentation tank type rainwater purification device, the open-type structure of the multi-stage sedimentation tank type rainwater purification device is less prone to pipeline clogging in case of continuous rainfall and poor rainwater quality, and water in the reservoir can be continuously renewed to guarantee the quality of the water in the reservoir; the greenbelts above and under the bridges can be irrigated separately or simultaneously.

Description

technical field [0001] The invention belongs to the technical field of automatic irrigation and relates to an automatic irrigation system, in particular to a rainwater collection and automatic irrigation system for viaduct green belts. Background technique [0002] With the steady advancement of China's urban process, the length of urban viaducts has also increased significantly, and the length of green belts on and under the viaducts has also increased. The daily maintenance and irrigation of these green belts is also increasingly important. [0003] At present, the rainwater collection and automatic irrigation system for the viaduct green belt is either for the irrigation of the elevated green belt on the bridge, or for the irrigation of the green belt under the bridge, and during the storage of the purified rainwater, if it rains for a long time , cannot update the stored rainwater in time, leading to problems such as water quality decline. [0004] Chinese patent disclo...

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Problems solved by technology

[0003] At present, the rainwater collection and automatic irrigation system for the viaduct green belt is either for the irrigation of the elevated green belt on the bridge, or for the irrigation of the green belt under the bridge, and during the storage of the purified rainwater, if it rains for a long time , cannot update the stored rainwater in time, leading to problems such as water quality decline

[0004] Chinese patent discloses a viaduct rainwater collection and automatic irrigation system, application number CN201520348951.8, including rainwater collection and treatment system and irrigation system, adopts double-layer filter structure to filter the collected rainwater, when the water level of the water storage tank reaches the highest level, the water level sensor The signal is transmitted to the water replenishment inlet valve, and the water storage tank stops water intake. The automatic control system is realized by the controller, data acquisition device and sprinkler head, but the scheme has a double-layer filter structure that is prone to blockage. When it rains for a long time, the water storage tank The water quality will decrease due to the longer water storage time, and it is impossible to irrigate the green belts on the bridge and the green belts under the bridge at the same time

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