Siphon type rubber dam noise reduction and flow discharge device

Abstract

The invention relates to a siphon type rubber dam noise reduction and flow discharge device. The siphon type rubber dam noise reduction and flow discharge device comprises a river channel, wherein a rubber dam is arranged in the river channel in a crossing and sealing mode; the rubber dam divides the river channel into an upstream area and a downstream area; a siphon is arranged above the rubber dam; one end of the siphon extends into the upstream area, and the other end of the siphon extends into the downstream area; the end part, positioned in the upstream area, of the siphon is arranged asa water inlet end; the end part, positioned in the downstream area, of the siphon is arranged as a water outlet end; the height of the water inlet end is higher than that of the water outlet end; an air pump and a valve are sequentially arranged at the position close to the water outlet end of the siphon; and the air pump is used for pumping the siphon into a vacuum state, so that the pressure intensity of the water inlet end is larger than that of the water outlet end, then water in the upstream area automatically flows towards the downstream area through the siphon, the water in the upstreamarea is prevented from falling into the downstream area through the rubber dam to cause too large noise, the vertical distance between the water flow and the bottom wall of the river channel is reduced, and then the noise of the water flow is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of water conservancy engineering, in particular to a siphon type rubber dam noise reduction and discharge device. Background technique [0002] In urban rivers, dams are often built to raise the water level in the upper reaches of the river and improve the landscape effect on both sides of the river. Among them, rubber dams are an economical and simple water retaining type, which are widely used in urban rivers. The rubber dam, also known as the rubber sluice gate, is made of high-strength synthetic fiber fabric as the force-bearing skeleton, coated with rubber inside and outside as the protective layer, processed into adhesive tape, and then anchored on the bottom plate to form a closed dam bag, through the filling and discharging pipe A bag-type retaining dam formed by inflating it with road water (air). The dam crest can overflow, and the height of the dam can be adjusted according to needs to control th...

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Problems solved by technology

[0003] Because the rubber dam adopts the crest overflow method, the water level difference between the upstream and downstream is relatively large. When the water flows through the rubber dam, due to the large height difference between the dam crest and the dam bottom, the noise at the bottom of the dam is relatively large. Due to the shortage of land, the residential area is adjacent to the rubber dam, which is greatly affected by the water sound of the rubber dam, especially in the quiet late night, such as the thunderous sound of water, which greatly affects the sleep and quality of life of the residents in the community

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