Automatic water intake device for ecological flow

Abstract

The invention discloses an automatic water intake device for ecological flow. The automatic water intake device for the ecological flow comprises a water conveying pipe buried in a dam and a buoyancybox floating on the water. The automatic water intake device for the ecological flow is characterized by further comprising a first bent pipe, wherein one end of the first bent pipe is connected withthe water conveying pipe, the other end of the first bent pipe is provided with a water inlet pipe through a connection component, the water inlet pipe can rotate around the horizontal axis perpendicular to the water flow direction, the lower end of the water inlet pipe is connected with the connection component, the upper end of the water inlet pipe is provided with a grating cover allowing waterinflow, a flow guide plate is arranged in the grating cover and always keeps horizontal when the water inlet pipe rotates, and the flow guide plate is connected with the buoyancy box through a connection chain. According to the automatic water intake device for the ecological flow, due to the action of the connection chain at the upper end of the flow guide plate, the flow guide plate always keeps horizontal when rotating around a shaft lever, so that the water inflow section formed between the water inlet pipe and the flow guide plate can be adjusted; when the water level rises, the flow speed for the water flow to enter the water conveying pipe is increased, when the water level falls, the flow speed for the water flow to enter the water conveying pipe is reduced, when the water level rises, the water inflow section is reduced, when the water level falls, the water inflow section is increased, and the flow guide plate controls the water intake flow under various water levels.

Description

technical field [0001] The invention relates to water conservancy and hydropower projects, in particular to an automatic water intake device for ecological flow. Background technique [0002] The purpose of ecological flow discharge is to protect the ecological function of the river environment and maintain the sustainable development and utilization of water resources during the process of hydropower station damming and power generation, so as not to cause deterioration of the ecological environment. Its main function is to ensure the self-purification and diffusion capacity required by the river, without causing water pollution due to huge changes in flow and flow patterns; to maintain the survival of aquatic organisms in the downstream river channel and the inherent balance of the aquatic ecosystem; to ensure that the downstream residents live in water, Basic needs such as water for agricultural production. [0003] The existing domestic ecological flow relief generally ...

AI Technical Summary

Problems solved by technology

It is impossible to achieve ecological discharge with a relatively consistent flow rate. If a valve is designed on the pipeline to adjust the flow rate, on the one hand, manual intervention is required to increase the cost. On the other hand, since water resources are very precious, if the valve is closed ecological damage downstream

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