Double-runner sludge suction head

Abstract

The invention belongs to the technical field of underwater engineering and discloses a double-runner sludge suction head. The double-runner sludge suction head comprises a first runner and a second runner, wherein the upper part ports of the first and second runners converge to the same round pipe, the lower part suction ports of the first and second runners face to different directions, the first runner and the second runner are combined to form an inverted Y-shaped structure, and the opening end surfaces of the lower part suction ports of the two runners are perpendicular to a dredging substrate; the middle parts of the first runner and the second runner are separated by a baffle, the baffle is perpendicular to the cross sections of the upper part ports of the two runners, a rotary shaft perpendicular to the flow directions of the runners is respectively arranged on the middle parts of the first and second runners, the baffle can be rotationally mounted on the rotary shaft, and the baffle rotates around the rotary shaft to block the first runner or the second runner. According to the double-runner sludge suction head, two relatively-independent runners are arranged, a rotary baffle is arranged at the intersection position of the two runners, so that unidirectional dredging or bidirectional dredging can be realized, and the turbulence phenomenon in dredging is effectively avoided.

Description

technical field [0001] The invention relates to the technical field of underwater engineering, in particular to a dual-channel silting suction head. Background technique [0002] At present, dredging projects at home and abroad are mostly low-precision construction in shallow waters, and the research on deep water dredging is still immature. There are relatively few deep water dredging equipment, and dredging equipment cannot meet the diverse and high requirements of the growing underwater engineering. Construction accuracy requirements. [0003] For dredging, simple suction silt heads are mostly used, or ordinary dredgers are used directly for dredging. The dredging efficiency of these two methods is low, the power loss is large, and the range of applicable dredging conditions is small. The dredging methods include vertical dredging and horizontal dredging. The vertical dredging method has high efficiency and small power loss, but it is easy to cause damage to the dredged...

AI Technical Summary

Problems solved by technology

The dredging efficiency of these two methods is low, the power loss is large, and the range of applicable dredging conditions is small

The dredging methods include vertical dredging and horizontal dredging. The vertical dredging method has high efficiency and small power loss, but it is easy to cause damage to the dredged base. It is suitable for dredging projects with solid bases or no protection requirements for the base; horizontal dredging The silting method avoids damage to the base, but due to the use of external force to change the direction of the fluid, the power loss is large, thereby reducing the dredging efficiency, and the multi-directional fluid is easy to generate turbulent flow inside the suction head, which shortens the service life of the equipment

In addition, in some dredging applications, only one direction of dredging is required, while the existing suction heads cannot choose one-way dredging, and its multi-directional dredging not only wastes energy consumption but also easily affects dredging efficiency

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