Device and method for regulating and controlling ecological water requirement in dry seasons of riverway bankside zone under dam

Abstract

The invention discloses a device and a method for regulating and controlling ecological water requirement in dry seasons of a riverway bankside zone under a dam. The device comprises an architecture device, a height adjustment device, a charge / discharge device, a pendulous device and a central control device. The invention also provides a method for regulating and controlling the ecological water requirement in dry seasons of the riverway bankside zone under the dam by using the device. The device is capable of running independently or running according to dispatching in combination with an upstream reservoir; the device does not increase, and even reduces the discharged volume under the dam in the dry seasons while meeting the basic requirements such as normal floodwater draw-off, shipping and upstream reservoir water supply, and therefore, effective regulation and control on the ecological water requirement of the bankside zone near the device can be realized; the water level of the riverway bankside zone under the dam can be remarkably banked up, and also the water level pulse amplitude of different areas can be flexibly controlled; and therefore, the assurance rate of the ecological water requirement in the dry seasons of the riverway bankside zone under the dam is achieved, and the uneven seasonal distribution problem of the water volume and the contradiction between the water conservancy project construction and the downstream ecological water requirement are solved.

Description

technical field [0001] The invention relates to the technical field of optimization and regulation of water conservancy projects, in particular to a device and method for controlling ecological water demand in the dry season near the shore of a river channel under a dam. Background technique [0002] The seasonal distribution of precipitation in my country is uneven, and the annual runoff of most rivers varies greatly, and the wet season and the dry season are clearly distinguished. Under the environmental conditions of periodic hydrological fluctuations, after a long period of natural development, the nearshore zone of natural rivers will form a narrow and long transitional ecological area between the terrestrial ecosystem and the aquatic ecosystem, presenting the land and wetlands. , Emergent plants and submerged plants, unique fish and benthos interlaced unique landscape. The nearshore zone of the river has important ecological service functions such as bank stabilizatio...

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Problems solved by technology

[0005] The above analysis shows that only relying on a single measure to optimize the dispatch of upstream water conservancy and hydropower projects cannot completely solve the practical difficulty of insufficient ecological water demand in the near-shore zone of the river below the dam. Running alone or in cooperation with the ecological dispatch of the upstream reservoir, on the premise of meeting the basic water demand of the upstream reservoir area, it can meet the ecological water demand of the near-shore zone of the river below the dam without increasing or even reducing the discharge flow of the reservoir in the dry season

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