Design method of anti-blockage runner structures of douches of labyrinth runner structure

Abstract

The invention discloses a design method of anti-blockage channel structures of douches of a labyrinth channel structure, which includes five parts of: the drawing of the shape of an original runner structure, drawing of a contour map of sediment concentration with two-phase numerical simulation, redesigning of a boundary line of the runner, sizing of the shape of the runner structure, standardizeddesigning of the boundary line of the runner, etc. The method optimizes parameters of the runner structure of the douche. Compared with the douche in the shape of the original runner structure, in the designed douche, the sediment concentration distribution in the runner is more uniform, thus basically eliminating the phenomenon that a great number of solid particles accumulate at the runner wall. Therefore, the anti-blockage capability of the douche is doubled and the service life reaches twice that of the original service life. The hydraulic performance and prototype of the designed doucheremain unchanged and the manufacture technique and material usage of the products are the very same with that of present products.

Description

Technical field [0001] The invention relates to a design method of a drip irrigation irrigator frequently used in agricultural irrigation, in particular to a design method of an anti-clogging channel structure of a labyrinth channel structure irrigator. Background technique [0002] Drip irrigation sprinkler is the core component of drip irrigation system. The hydraulic performance and anti-blocking ability of the sprinkler directly determine the irrigation quality and system life of the drip irrigation project. Therefore, a reasonable design of the drip irrigation sprinkler and improving its anti-blocking ability and hydraulic performance are important for improving the drip irrigation system. Performance, improving the service life of the system, and reducing the cost of the system are all of great significance. At present, the flow channel structure of drip irrigation emitters often adopts a labyrinth structure. The hydraulic performance and anti-clogging ability of the drip i...

AI Technical Summary

Problems solved by technology

For this reason, relevant scholars in my country have proposed a flow channel design method to eliminate the vortex area in the flow channel and an emitter with an arc-shaped flow channel structure. These methods not only improve the anti-clogging ability of the emitter, but also reduce the hydraulic power of the emitter to a certain extent. Performance, not the most scientific anti-clogging design method for emitters

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