Self-cleaning screen filter for micro-irrigation and structural optimization design method thereof

Abstract

The invention relates to a self-cleaning screen filter for micro-irrigation and a structure optimization design method thereof, the filter comprises: a cylinder, a water inlet , a water outlet, a, sewage draining exit, a filter element, a pollution discharge element and a transmission device; the interior of the cylinder is divided into a filter chamber and a sewage discharge chamber by a lower sealing plate and an upper sealing plate; the water inlet is connected to the lower end of the barrel; the water outlet is formed in the middle of the cylinder body and is communicated with the filtering cavity, and the water outlet and the water inlet are vertically distributed; the sewage draining exit is formed in the upper part of the cylinder body and is communicated with the sewage draining cavity; the filter element is coaxially arranged in the barrel, the two ends of the filter element are fixedly connected with the lower sealing plate and the upper sealing plate respectively, the lower end of the filter element is communicated with the water inlet, and a filter screen is formed on the peripheral wall of the filter element; the pollution discharge element is arranged in the filter element along the axial direction, and the pollution discharge element is configured to have two degrees of freedom of circular motion and axial linear motion; and the transmission device is fixed at the top of the cylinder body and is connected with the pollution discharge element. According to the invention, processing and installation are easy, positioning is simple and reliable, and manufacturing cost is reduced.

Description

technical field [0001] The invention relates to the technical field of high-efficiency water-saving irrigation, in particular to a self-cleaning net filter for micro-irrigation and a structural optimization design method thereof. Background technique [0002] In recent years, as the country emphasizes the ecological protection and high-quality development of the Yellow River Basin, vigorously develops water-saving industrial technology, and vigorously promotes agricultural water-saving, the overall limited amount of water resources and equal emphasis on water pollution make the country's investment in agricultural irrigation infrastructure less increase. The popularity of modern agricultural irrigation systems is getting faster and faster. The increase in labor costs and the development of agricultural technology have made irrigation systems tend to be large-scale and intelligent, and at the same time put forward higher requirements for irrigation water quality. Micro-irrig...

AI Technical Summary

Problems solved by technology

Although there are various types of self-cleaning mesh filters on the market, their filtration principles are the same, relying on the internal core component screen to physically intercept impurities in water. It is easy to know from hydraulic theory that when the boundary conditions of water flow change, the shape of water flow will also change. Changes will change the movement state of impurities on the surface of the screen, thus affecting the filtration time and backwashing effect

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