US 12,221,756 B1Granted

Dredging and drainage structure for irrigation area

AssigneeZhejiang Institute of Hydraulics & Estuary (Zhejiang Institute of Marine Planning and Design)

InventorsLongqiang Su, Jinhua Wen, Shuiping Yao, Shang Gao, Chenbin Jiang, Helong Wang, Yi Shi, Caiming Chen, Qifeng Li, Ming Wen

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Abstract

A self-acting dredging and drainage structure for a plain river network irrigation area is provided. The structure includes a first tube body, a water inlet end side of the first tube body is provided with a trash rack, a partition body is provided in the first tube body, and a water outlet end side of the first tube body is provided with a contraction and diversion device. The contraction and diversion device divides a water outlet end of the first tube body into an upper water outlet side and a lower water outlet side, and the contraction and diversion device includes no less than one arranged contraction and diversion pipe; and the upper water outlet side has first water outlets and second water outlets.

Claims8

Dependent claims

A self-acting dredging and drainage structure for a plain river network irrigation area, comprising:

a first tube body, wherein a water inlet end side of the first tube body is provided with a trash rack, a partition body is provided in the first tube body, and a water outlet end side of the first tube body is provided with a contraction and diversion device;
wherein the contraction and diversion device divides a water outlet end of the first tube body into an upper water outlet side and a lower water outlet side, and the contraction and diversion device comprises contraction and diversion pipes arranged no less than one;
the upper water outlet side has first water outlets and second water outlets, ends of the contraction and diversion pipes are arranged in one-to-one correspondence with the first water outlets, and other ends of the contraction and diversion pipes are all connected with a connecting pipe.

Dependencies are inferred from the claim text.