Coastal water layer exchange device for lake

Abstract

The invention discloses a coast water layer exchange device for a lake. The coast water layer exchange device comprises a water collection system and a water distribution system. The water collection system is arranged at the horizontal position close to the bottom of the lake and comprises an annular water collection main pipe arranged along the shoreline of the lake and a plurality of water collection branch pipes evenly distributed in the length direction of the water collection main pipe. Each water collection branch pipe extends into a retaining wall of the lake; the water collection main pipe is connected with a water inlet of the treatment device through a water collection main pipe; the water distribution system is arranged at the horizontal position above the lake water surface and comprises an annular water distribution main pipe arranged along the shoreline of the lake and a plurality of water distribution branch pipes evenly distributed in the length direction of the water distribution main pipe; each water distribution branch pipe extends into a retaining wall of the lake; and the water distribution main pipe is connected with a water outlet of the treatment device through a water distribution main pipe. The device can improve the lake water quality, avoid the water quality deterioration caused by algae outbreak, insufficient dissolved oxygen and the like due to dead angles of the near-shore area, and has good economical efficiency and reliability.

Description

technical field [0001] The invention relates to the technical field of water body purification, in particular to a coastal water layer exchange device for lakes. Background technique [0002] Common problems in lakes include water eutrophication, insufficient dissolved oxygen, etc., which are largely due to the lack of hydrodynamic force in the water body, especially the many "dead spots" along the coast, which are prone to form stagnant water areas. Due to the relatively slow water flow, large water depth, and complex and changeable shoreline of the lake, technical measures to improve hydrodynamics also need to be adapted to local conditions. [0003] In the existing technology, most of the methods of aeration and push flow are used to improve the hydrodynamic force, but the conventional aeration is only the surface jet or slapping the water surface, and the efficiency of oxygenation is low, and the mechanical arm of push flow is easy to affect the water in the lake. aquat...

AI Technical Summary

Problems solved by technology

[0003] In the existing technology, aeration and push flow are mostly used to improve hydrodynamic force, but conventional aeration is only a surface jet or slap on the water surface, and the efficiency of oxygenation is low, and the mechanical arm of push flow is easy to affect the water in the lake. aquatic organisms, and push flow also has certain limitations in lakes with large water depths

In addition, these two measures are not targeted enough in areas where the coastline is variable and forms dead spots. It is estimated that the algal blooms in many lakes are the most serious near the shore.

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