A system for pumping and discharging gas and tail water from rubber dams

Abstract

The invention discloses a water-filled rubber dam pumping and discharging gas and tail water system, which mainly includes a suction pipe, a vacuum pump, a control system and the like. It is characterized in that a "feng"-shaped porous suction pipe is respectively set on the inner wall of the dam bag along the dam axis and the slump line, an external vacuum pump is connected, and the vacuum pump is connected to the control system. When the raised blocking dam blocks the discharge of river water, the pumping and exhausting gas and tail water system will be activated according to the requirements and set procedures to forcefully pump and discharge the accumulated gas or tail water. When the accumulated air in the dam bag is drained, the rise of the water level in the siphon will trigger the liquid level circuit breaker and control the vacuum pump to stop pumping; when the tail water in the dam is drained, the drop of the water level in the siphon will trigger the liquid level circuit breaker and control the vacuum pump Stop the pumping and discharge, so as to realize the automatic control and forced removal of the gas and tail water in the water-filled rubber dam bag.

Description

technical field [0001] The invention relates to the technical field of water conservancy engineering construction, in particular to a system for pumping and discharging gas and tail water from a rubber dam. Background technique [0002] The rubber dam project is a new type of environment-friendly water retaining structure, which has been widely used in flood control, irrigation, water supply, power generation, shipping, tide blocking, groundwater recharge and urban garden landscape and other fields. It is widely used in rubber dam construction. Among them, the water-filled rubber dam occupies a dominant position. When the water-filled rubber dam is raised and filled with water, air is often mixed into the dam-filled water body, and a bulging phenomenon occurs in the upper part of the dam body. In the case of gas accumulation in the dam bag, it is not only impossible to measure the actual dam height accurately, but also causes uneven discharge flow under the dam, unstable fl...

AI Technical Summary

Problems solved by technology

Although power drainage belongs to active drainage, the water outlet is often set in the middle of the bottom plate. When the dam body collapses to the lowest point, under the action of upstream water flow pressure, the upstream part of the dam bag axis fits on the bottom gasket of the bottom plate, covering the bottom of the bottom plate. When the water outlet is closed, the remaining tail water is wrapped by the dam bag downstream of the axis, and cannot flow to the outlet, which makes it difficult to discharge the tail water, thus forming a dam to block the discharge of the river. Under the action of the water flow, the dam will also vibrate , wear the dam bag, and have adverse effects on the safety of the dam body

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