Vertical water body mixing device for improving water quality of eutrophication water temperature stratification reservoir

Abstract

A vertical water body mixing device for improving water quality of a eutrophication water temperature stratification reservoir comprises a main body pipe and two balance water tanks connected to the two ends of the outer side of the main body pipe respectively, wherein a balance weight steel ball capable of moving left and right is arranged in the middle space in the main body pipe; a left electromagnet and a right electromagnet which are used for attracting the counterweight steel ball to move left and right are symmetrically arranged at the two ends in the main body pipe respectively; and the left electromagnet and the right electromagnet are connected through a cable to a control circuit which can enable the left electromagnet and the right electromagnet to generate attraction to the counterweight steel ball at different time. The device has the advantages of being simple in structure, small in size, easy to transport, small in energy loss, large in action range, high in maneuverability, high in mixing efficiency, economical, efficient, capable of solving the problem of reservoir eutrophication and the like, and through hydrodynamic disturbance, mechanical mixing is carried out near a thermocline of a layered water body to increase vertical hydrodynamic turbulent fluctuation, water body internal waves can be induced to be generated by repeatedly penetrating through the thermocline, and water body layering is further relieved.

Description

technical field [0001] The invention relates to a water mixing device. In particular, it relates to a vertical water mixing device for improving the water quality of eutrophic water temperature stratified reservoirs. Background technique [0002] With the acceleration of the modernization process, surface water such as reservoirs and lakes has become the main source of drinking water in most cities. Endogenous pollution is one of the water quality problems that most reservoirs need to solve urgently; and eutrophication will affect the health of water bodies. Water quality will reduce the transparency of water, making it difficult for sunlight to penetrate the water layer, thereby affecting the photosynthesis of plants in the water, and may cause a supersaturated state of dissolved oxygen. Supersaturation of dissolved oxygen or too little dissolved oxygen in water are harmful to aquatic animals; at the same time, eutrophication of water body will cause a large number of alga...

AI Technical Summary

Problems solved by technology

However, traditional pumping and aeration devices only form a certain circulating water flow in lakes and reservoirs through single hydraulic stirring, mechanical mixing, aeration, etc., destroying the stratification of water bodies, so as to promote the mixing of oxygen-enriched water on the surface and anoxic water on the bottom.

The energy efficiency of single aeration and oxygenation and mechanical mixing technology to destroy stratification is relatively low, generally below 10%, and has limitations such as large device volume, difficult transportation, and high cost.

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