Optimized water exchange method between open sea and inner lake water system

Abstract

The invention discloses an optimized open sea and enclosed lake water system water exchange method. The optimized open sea and enclosed lake water system water exchange method comprises the followingsteps of setting a water level upper limit value and a water level lower limit value of an enclosed lake water system; arranging at least one water diversion gate or water diversion valve and at leastone emptying gate or drainage valve at the junction of an open sea water system and the enclosed lake water system; prestoring diachronic tide level data, the water level upper limit value and the water level lower limit value in a database of a gate control system, analyzing and controlling to open and close the at least one water diversion gate or water diversion valve and the at least one emptying gate or drainage valve through the control system to enable sea water of open sea to flow into the enclosed lake water system through the at least one water diversion gate or water diversion valve to form a unidirectional flow control flow state, flow to the at least one emptying gate or drainage valve and then be discharged to the open sea. Through the optimized open sea and enclosed lake water system water exchange method, the exchange efficiency of water of the enclosed lake water system communicating with the open sea and water of the open sea can be substantially improved, and the water level of an enclosed lake is controlled to change within a certain range without radical change.

Description

technical field [0001] The invention relates to the technical field of water body exchange test research, in particular to an optimized method for water body exchange between an open sea and an inner lake water system. Background technique [0002] In order to develop tourism resources, according to the concept of lagoons, the inner lake water system connected to the outer sea is designed in coastal tourist areas or artificial islands on the sea, which strengthens the landscape characteristics of tourist areas and emphasizes the concept of environmental protection. In order to meet the use functions, it is necessary to ensure the water quality of the inner lake water system excellent. The water quality of the inner lake is guaranteed by relying on the dynamic changes of rising and falling tides in the outer sea to exchange the water in the outer sea with the water in the inner lake. Water is diverted during high tide in the open sea, and the level of the open sea rises duri...

AI Technical Summary

Problems solved by technology

This will lead to the introduction of the outer sea water and the inner lake water before being fully mixed, and will soon be discharged to the outer sea again. Each time the water is diverted, the water exchange efficiency is low

The results of relevant mathematical model tests show that this scheme that only relies on natural dynamic water exchange has low water exchange efficiency. Even if multiple diversion and drainage channels are installed, the improvement of water exchange efficiency is very limited, especially for the area and water volume of the inner lake. In larger working conditions, the exchange efficiency of water away from the diversion and drainage channels is extremely low, and the required exchange period is longer

Second, the water level of the inner lake changes with the tide of the outer sea, which is basically the same as the tide level of the outer sea. The water level of the inner lake varies widely, especially in sea areas with a large tidal range. The water level of the inner lake will fluctuate greatly, which is not conducive to ships in the inner lake. sailing, and the water level changes too much and the landscape effect is not good

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