Withholding scour prevention quantitative water intake for farmland low-pressure water delivery pipeline

Abstract

The invention provides a withholding scour prevention quantitative water intake for a farmland low-pressure water delivery pipeline, and belongs to the technical field of farmland pipeline water delivery irrigation engineering. The withholding scour prevention quantitative water intake comprises the low-pressure water delivery pipeline, and is characterized by further comprising a water inlet area, a water outlet area and a withholding control area, wherein the withholding control area is arranged in the water outlet area, the water inlet area is respectively connected with the low-pressure water delivery pipeline and the withholding control area, the water inlet area is formed by connecting vertical pipes and a reducer tee, the reducer tee is installed on branches of the low-pressure water delivery pipeline, an outer cover, locating pins, connecting pipes and water outlets arranged in side walls of the outer cover are arranged in the withholding control area, the locating pins are arranged on pipe walls of the outer cover and stretch out of inner walls of the pipes, the connecting pipes are connected to the vertical pipes in a sleeved mode, outer walls of the connecting pipes are provided with sliding chutes, the outer cover is arranged on the connecting pipes in a sleeved mode, the locating pins are placed in the sliding chutes, and the outer cover moves along the sliding chutes up and down through the locating pins. The withholding scour prevention quantitative water intake is reasonable in structure, stable in water flow, less in local head loss, simple in structure, low in manufacturing cost, flexible in operating, capable of blocking water through sealing gaskets, good in sealing performance and easy to maintain.

Description

technical field [0001] The invention relates to an accessory accessory of a farmland low-pressure pipeline water delivery irrigation system, in particular to a farmland low-pressure water delivery pipeline buckle-proof scour-proof fixed quota water intake, which belongs to the technical field of farmland pipeline water delivery irrigation engineering. Background technique [0002] The water intake of the low-pressure pipeline water delivery irrigation system is an important facility for water distribution from the pipeline to the farmland. The accuracy of water distribution at the water intake directly affects the scientific water management and water fee recovery of the irrigation area, and even affects the popularization and application of advanced irrigation technology. As the management conditions of farmland irrigation water will gradually tend to be consistent, the quantitative water distribution equipment technology of water distribution pipes will have more and more r...

AI Technical Summary

Problems solved by technology

Although the water intake currently used has the ability to adjust and control the water output of the pipeline system, it cannot accurately distribute the water volume of the pipeline to each field according to the needs without metering equipment, and the water allocation and water management of the system still remain. very troublesome

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