A solar-energy-based device improving water quality through mixing and oxygenating

Abstract

A solar-energy-based device improving water quality through mixing and oxygenating is disclosed. The device includes a water pump system, a water flow rising system, a Venturi air feeding system, a floating body and anchoring piers. The floating body floats on the water. The anchoring piers are disposed at the bottom of a water body and are connected to the floating body. The water pump system includes solar power generators disposed on the floating body and a water pump disposed in the water. The solar power generators are used for supply the water pump with electricity. The Venturi air feeding system includes a Venturi pipe two ends of which are opened and which is longitudinally disposed, and a plurality of air feeding pipes communicated with a throat part of the Venturi pipe. Air inlets of the air feeding pipes are above the water surface. The water flow rising system penetrates the floating body at the longitudinal direction, and the bottom of the water flow rising system is connected to the upper straight tube of the Venturi pipe. The bottom of the lower straight tube of the Venturi pipe is communicated with a water inlet of the water pump. The device can be operated in a green and low-carbon manner, can economically and efficiently improve water quality of shallow water, rivers, lakes and reservoirs in situ without electricity consumption, and can control water body eutrophication.

Description

technical field [0001] The invention relates to a solar energy-based mixed oxygenation water quality improvement device, which is suitable for various lakes, reservoirs, landscape water and other water bodies, and uses solar energy as power to control water eutrophication by mixing water bodies and negative pressure oxygenation. Background technique [0002] With the rapid development of social economy, water bodies such as lakes and reservoirs are shrinking and the situation of eutrophication is very severe. According to surveys and studies, since the 1950s, the country has more than 10km 2 In the lake, the dry area is 4326km 2 , the shrinking area is 9570km 2 , the water storage volume decreased by 51.6 billion cubic meters. In the 1970s, the eutrophication area of ​​lakes in my country was about 135 km 2 , the current area has surged 60 times. Water temperature stratification is a major cause of water pollution in large deep lakes and reservoirs. Since the intermedi...

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Problems solved by technology

But despite this, the current aeration mixed oxygenation technology is to perform aeration and oxygenation at the bottom of lakes and reservoirs, and at the same time use gas to lift the water body for mixing. Since the air supply pressure must be greater than the water depth, the energy demand for the hybrid oxygenation system is very large. , need a large air compressor, and high energy consumption, low energy efficiency (generally below 10%), in addition to difficult installation and maintenance underwater

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