High-pressure flushing system for trailing suction hopper dredger and with self-exciting oscillation pulsed jet flow nozzles

Abstract

The invention belongs to the technical field of dredging engineering, and relates to a high-pressure flushing system for a trailing suction hopper dredger and with self-exciting oscillation pulsed jetflow nozzles. The high-pressure flushing system is divided into a rake tooth high-pressure flushing system and a wear-resistant block high-pressure flushing system; nozzles at gratings and rake teethof the rake tooth high-pressure flushing system and in wear-resistant blocks in the wear-resistant block high-pressure flushing system adopt the self-exciting oscillation pulsed jet flow nozzles which are simple in structure, small in size and high in reliability, under the conditions that the structure, the material strength and the like of a pipeline of the high-pressure flushing system of thetrailing suction hopper dredger and a high-pressure water tank are satisfied, the jet flow pressure and the effective shooting distance of the high-pressure flushing system of the trailing suction hopper dredger are obviously improved from the aspect of improving and playing the water jet flow potential, the dredging efficiency of the trailing suction hopper dredger is improved, and the dredging energy consumption is reduced.

Description

technical field [0001] This application belongs to the technical field of dredging engineering. Background technique [0002] As the main dredging equipment of trailing suction dredgers, the development of the drag head has gone through multiple evolutionary stages. Based on the formation process of mud and the control of mud concentration, the current trend of drag head design relies more on high-pressure flushing systems and Combination and optimal matching of rake tooth cutting system. With the development of trailing suction dredgers in the direction of large-scale, high-efficiency and energy-saving, the high-pressure flushing system has become an indispensable and important dredging equipment in the efficient dredging process of trailing suction dredgers. one. [0003] Regarding the influence of the high-pressure flushing system on the dredging efficiency of the trailing suction dredger, relevant research work has been carried out at home and abroad. The research resul...

AI Technical Summary

Problems solved by technology

In order to increase the jet pressure of the high-pressure flushing system of a trailing suction dredger, it is usually achieved by increasing the displacement of the high-pressure water pump. However, due to the resistance loss along the pipeline and the pipeline and high-pressure water tank of the high-pressure flushing system The structure, material and process of the trailing suction dredger have limited the jet pressure of the high pressure flushing system.

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