A Differential Trigger Type Precision Irrigation Water Quantity Metering Device

Abstract

The invention discloses a differential trigger type precise irrigation water metering device, the upper end of the lifting control device is fixedly arranged on the outer box, the lower end of the lifting control device extends into the outer box and is fixedly connected to the top of the inner box; the upper end or the middle end of the water inlet side of the inner box 1. The water inlet side of the outer box is provided with water inlet 1 and water inlet 2 that cooperate with each other, and the lower end of the water outlet side of the inner box and the lower end of the water outlet side of the outer box are provided with water outlet 1 and water outlet 2 that cooperate with each other; the lifting control device pulls upwards In the inner box, the water inlet 1 and the water inlet 2 are at least partially overlapped, and the water in the ditch slope protection enters the inner box. When the water volume in the inner box gradually increases and the gravity of the inner box exceeds the downward resistance, the inner box goes down and enters the water outlet state, and the water outlet The first part coincides with the second water outlet at least partially, and the water in the inner box flows into the farmland. The invention calculates the total water flow by accumulating the single water flow of the water tank and the lifting times, accurately measures the irrigation water consumption in the field, and realizes the improvement of the utilization efficiency of water resources and the intelligent control of the irrigation water quantity.

Description

technical field [0001] The invention relates to a differential trigger type precision irrigation water metering device, which belongs to the technical field of irrigation water metering devices. Background technique [0002] In today's society, agricultural water consumption is a major consumer of water resources. In recent years, the construction of agricultural water-saving projects has achieved certain results. However, the extensive and inefficient use of agricultural irrigation is still widely used at present, which exacerbates the shortage of water resources to a certain extent. Practice has proved that the construction of agricultural water metering facilities and the metering, charging and control of agricultural water use are effective measures for sustainable agricultural development and an important part of the construction of a water-saving society. However, due to the traditional concept of agricultural water use in my country for a long time, there are few met...

AI Technical Summary

Problems solved by technology

[0003] The measurement of irrigation water is a basic and key technology. Traditional Parshall water measuring tanks, U-shaped water measuring tanks and other water measuring devices are only suitable for measuring large water volumes such as main canals and ditches, and are used to realize open channel water delivery in surface water irrigation areas. measurement, but the measurement accuracy of such devices is generally not high

However, some large-scale precision flow devices, such as ultrasonic flowmeters and infrared flowmeters, have high measurement accuracy, but they have high investment costs, complicated installation and high maintenance costs, which will increase the burden on farmers.

Images