Agricultural land concealed pipe water level water quality co-controlling drainage

Abstract

The invention discloses a water level and quality jointly controlled drain device of a farmland underground drain pipe, relates to a water level and quality jointly controlled drain device of a gate of a farmland underground drain pipe, and belongs to the technical field of agricultural soil and water engineering. The upper end of a floating ball device is provided with a spring piece control device which is connected with a water quality detection device, and the lower end of the floating ball device is connected with the gate which is provided with an underground pipe transversely, and the height of the gate is greater than that of the underground pipe. The water level and quality jointly controlled drain device can control the underground water level according the growth needs of crops,and control the automatic opening of the gate and drainage volume according to the water level and quality of underground water of a farmland, thereby ensuring that a soil reservoir can give a full play to a water storage and discharge function, implementing underground water management and preventing widespread pollution due to nitrogen and phosphorus loss in the farmland. The drain device has the advantages of realizing the multi-target control of farmland drainage, reducing agricultural non-point source pollution, along with simple structure and easy popularization.

Description

technical field [0001] The invention relates to a drainage device for controlling the water level of a farmland hidden pipe drainage gate and a combined water quality control drainage device, and belongs to the technical field of agricultural water and soil engineering. Background technique [0002] At present, most of the drainage outlets of farmland underground pipes are open or equipped with simple manual gates. The depth of underground pipes determines the buried depth of farmland groundwater. It is impossible to control drainage according to the groundwater level and water quality of farmland, which affects the efficient use of water resources and easily causes non-point source pollution. . Contents of the invention [0003] The purpose of the present invention is to provide a drainage device for combined control of water level and quality of farmland hidden pipes, which can implement farmland controlled drainage according to the requirements of crop growth on the gro...

AI Technical Summary

Problems solved by technology

[0002] At present, most of the drainage outlets of farmland underground pipes are open or equipped with simple manual gates. The depth of underground pipes determines the buried depth of farmland groundwater. It is impossible to control drainage according to the groundwater level and water quality of farmland, which affects the efficient use of water resources and easily causes non-point source pollution.

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