Grid plate type water metering and control device applicable to field irrigation

Abstract

The invention discloses a grid plate type water metering and control device applicable to field irrigation. The device is characterized by comprising a water passing box (3), a water inlet gate (4), a water-permeable grid plate (8), an electromagnetic lock (5), a controller (6) and a linear displacement sensor (7). The water passing box (3) is installed in a ditch slope (1), the water inlet gate (4) is installed on the water inlet side, the water-permeable grid plate (8) is installed on the water outlet side, the linear displacement sensor (7) is installed on the top of the water outlet side of the water passing box (3), the controller (6) is fixed to the top of the water passing box (3) and is connected with the linear displacement sensor (7) and the electromagnetic lock (5), and the controller (6) receives the signals of the linear displacement sensor (7), and can also control the electromagnetic lock (5) to be opened and closed. The grid plate type water metering and control device applicable to field irrigation has the advantages of being simple in structure, accurate in metering, wide in measuring range, capable of achieving remote automatic control easily and the like, and is particularly applicable to accurate metering of and control over the water consumption of field irrigation.

Description

technical field [0001] The invention relates to a grid-type water metering and control device suitable for field irrigation, which belongs to the technical field of farmland water conservancy. Background technique [0002] Water resources are a major issue that people are increasingly concerned about. my country's agricultural water consumption accounts for nearly 70% of the country's total water consumption, of which 90% is consumed in farmland irrigation. Irrigated agriculture plays an irreplaceable role in supporting food production. However, with the rapid development of my country's social economy, the problems existing in irrigation in irrigation areas are becoming more and more prominent, such as the aging of irrigation area projects leading to the failure of water transmission and distribution functions, the lack of water resources in northern my country but the serious phenomenon of wasting water, water use efficiency and Productivity is lower and so on. At present,...

AI Technical Summary

Problems solved by technology

Although water measurement in irrigation districts is not a direct water-saving measure, it is the basic work for the rational allocation of agricultural water use and the adoption of high-tech water-saving measures. However, in addition to a few irrigation districts with research projects in my country over the years, most of them only set up some simple water measuring facilities in water delivery channels, and most of the measurement methods use traditional artificial methods. mode, less accurate

[0004] In recent years, with the gradual improvement of my country's modern agricultural construction level, mechanical automation and electronic technology have been increasingly applied to water measurement in irrigation areas, and a large number of new water measurement equipment have also been produced; however, these water measurement facilities are often There are disadvantages such as limited range of use, high cost, and difficult maintenance in the later period. For example, the existing large-scale water measuring equipment will cause head loss while ensuring the measurement accuracy. Their investment is large and the equipment is more complicated; Small and vulnerable to damage, difficult to maintain; weirs and metering tanks are easily damaged by water flow impact and have low accuracy; at the same time, existing metering devices are often only set in trunk and branch canals However, the water consumption of a single irrigation user cannot be accurately measured; therefore, at present, my country's irrigation areas urgently need a farmland irrigation water metering and water-saving control device suitable for the final channel. At the same time, it can save costs and facilitate maintenance, so as to save water in irrigation areas and improve irrigation efficiency.

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