Technical method for synchronously improving water power of rivers and lakes in coastal cities by utilizing tidal resources

Abstract

The invention discloses a technical method for synchronously improving water power of rivers and lakes in coastal cities by utilizing tidal resources. The method comprises the following steps of setting a river and lake communication path, setting a water gate group, setting a water suction pump station and a water replenishing point, reasonably allocating the water quantity of rivers and lakes and jointly scheduling river and lake gate pumps. Tidal resources are fully utilized for synchronously supplementing water to inland rivers and lakes of coastal cities, and the problem of insufficient water quantity of the inland rivers and lakes is solved; circulating flow of a water body among inland rivers, lakes and open sea, between the inland rivers and the lakes and in the lakes is achieved through rising tide power, falling tide power and artificial power; the hydrodynamic force of inland rivers and lakes is synchronously enhanced; and a tide receiving and water supplementing channel and a tide falling drainage channel are arranged at different places, so that the problem of pollutant reversion is effectively avoided, open sea tide resources are scientifically and reasonably utilized, and inland rivers and lakes in coastal cities are synchronously supplemented with water and hydrodynamic force is synchronously improved.

Description

technical field [0001] The invention belongs to the technical field of water environment treatment of rivers and lakes, and in particular relates to a technical method for synchronously improving the water dynamics of rivers and lakes in coastal cities by using tidal resources. Background technique [0002] Inland rivers and lakes in coastal cities have a relatively limited catchment area, and their natural water flow is relatively small, especially in the dry season, when the natural water flow is seriously insufficient. In addition, due to urban construction and development, the discharge of production and domestic sewage, wading and occupation of rivers and other severe human Inland rivers and lakes in cities often face relatively serious water environment problems due to the intervention of activities. In addition, inland rivers and lakes in coastal cities undertake multiple functions such as tidal protection, light storage, flood discharge, and drainage. Tidal gates are...

AI Technical Summary

Problems solved by technology

Exogenous water replenishment often involves water transfer across river basins, the project is complicated, the investment is large, and the amount of replenishment water is limited

Tide-receiving and replenishing water uses natural tidal power to speed up water body exchange and enhance water flow. However, when a single coastal city inland river or a lake is subjected to tidal-receiving and replenishing water, that is, when the tide-receiving and replenishing channel is the same as the ebb and flow drainage channel, due to the reciprocating flow of ebb and flow Most of the water that enters the inland river or lake from the high tide of the open sea is still the water discharged from the inland river or lake to the open sea at the ebb tide. The pollutants in the inland river or lake are discharged to the open sea with the water body at the ebb tide, and have not yet effectively diffused at the high tide Pollutants from the open sea will enter inland rivers or lakes along with water bodies. Therefore, although the water bodies in inland rivers or lakes are exchanged through tidal action, the exchanged water bodies are still the original water bodies, and their water quality has not been effectively improved.

In addition, the ebb and flow of the tide also tends to cause siltation in inland rivers and lakes. Therefore, relying solely on natural tidal power cannot effectively improve the water volume and insufficient hydrodynamic force in inland rivers and lakes in coastal cities.

Images