The application discloses an
irrigation canal assembling module with double-
helix flow guide rib structures, which comprises a prefabricated canal body module and two flow guide ribs, the flow guide ribs are arranged on the side walls of the prefabricated canal body module, the thickness of the flow guide ribs decreases along the
water flow direction, the cross-sectional shape of the flow guide ribs is a
sine wave shape, and the two flow guide ribs have a
phase difference, the flow guide ribs are provided with a plurality of tapered hole arrays which are repeated along the
water flow direction, the hole
diameter of the tapered hole arrays decreases along the
water flow direction, and the hole spacing increases along the water flow direction. According to the technical scheme of the application, the main flow is divided into a plurality of sub-flows by the two flow guide ribs, the local flow rate is improved, the two flow guide ribs are arranged to have a
phase difference, a colliding turbulent flow field is formed, the tapered hole arrays are arranged to induce local vortex flow, and the purposes of preventing
siltation and self-cleaning are achieved, the
irrigation demand is met, and the
suspended matter settlement rate is reduced.