Sand setting and circulating device for wave flow water tank test tailings

Abstract

The invention relates to the technical field of hydraulic model tests, and provides a sand setting circulating device for wave flow water tank test tailings, a sand collecting device is arranged at the front end of a tail gate of a water tank main body, bed load sand bodies with large particle sizes are collected at a time, and a sand-water separating device is arranged at the tail end of the water tank main body, so the sand-water separation on the tail water subjected to energy dissipation; the sand-water separating device comprises a collection barrel and a sand suction device mounted in the collection barrel, suspended load sand bodies with small particle sizes are secondarily collected, a water outlet is formed in the upper part of the collection barrel, and separated clear water flows into a clear water reservoir through a water return pipe for cyclic utilization; acomputer is arranged for intelligent control, so the problems of a traditional sand setting system are thoroughly solved, and the test cost is effectively reduced.

Description

technical field [0001] The invention relates to the technical field of hydraulic model tests, in particular to a sand settling circulation device for tailing sand in a wave flow tank test. Background technique [0002] The sediment movement test is one of the important components of the hydraulic model test. In marine and coastal engineering, such as the turbulent structure of the sand-carrying water flow and the law of sand delivery, the relationship between turbulent flow burst and sediment movement, etc. must be determined by the sediment movement test. Complete, therefore, in the flume model test, using wave flow dynamics to do the above-mentioned mud-sand movement test requires water-sand separation treatment of the test tailings, and continuous long-term cycle conversion. [0003] At present, the method of installing a herringbone tailgate at the end of the tank and installing a sand collection cup at the front end of the tailgate is often used in the wave flow tank to...

AI Technical Summary

Problems solved by technology

But in fact, due to factors such as hydrodynamic forces, the sand collection cup can only collect 50%-65% of the test tailings, and the collected sand is basically the bottom sand with large self-weight and coarse particles; while the bottom sand with small self-weight and fine particles The suspended sand cannot be collected by the sand collection cup, causing the tailing sand to enter the return channel with the water flow downstream of the wave flow tank, and then enter the test clean water reservoir. Over time, the clean water reservoir will accumulate a large amount of test tailing sand, resulting in turbid water in the clean water reservoir , the water body cannot be used for other clear water tests, that is, it cannot be recycled, resulting in a large amount of water waste

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