A kind of self-cleaning mesh filter for micro-irrigation and its structure optimization design method

Abstract

The invention relates to a self-cleaning mesh filter for micro-irrigation and its structural optimization design method. The filter includes: a cylinder body, which is divided into a filter cavity and a sewage discharge cavity by a lower sealing plate and an upper sealing plate; a water inlet, Connected to the lower end of the cylinder; the water outlet is set in the middle of the cylinder and communicated with the filter chamber, and the distribution pattern of the water outlet and the water inlet is vertical distribution; the sewage outlet is arranged on the upper part of the cylinder and communicated with the sewage chamber; The filter element is coaxially arranged in the cylinder body and 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 connected with the water inlet, and the surrounding wall of the filter element forms a filter screen; the sewage element, along the shaft It is arranged inside the filter element, and the sewage element is configured to have two degrees of freedom of circular motion and axial linear motion; the transmission device is fixed on the top of the cylinder and connected with the sewage element. The invention can realize easy processing and installation, simple and reliable positioning, and reduce manufacturing cost.

Description

technical field [0001] The invention relates to the technical field of high-efficiency water-saving irrigation, in particular to a self-cleaning mesh filter for micro-irrigation and a structure 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 technologies, and vigorously promotes agricultural water-saving, the overall limited amount of water resources and the phenomenon of water pollution have made the country's investment in agricultural irrigation infrastructure. increase. The popularity of modern agricultural irrigation systems is getting faster and faster. The increase in labor costs and the development of agricultural science and technology make irrigation systems tend to be large-scale and intelligent, and at the same time put forward higher requirements for irrigation water quality. M...

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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