Intermittent mechanical mixing-surface layer oxygenation integrated pilot plant test device

Abstract

The invention discloses an intermittent mechanical mixing-surface layer oxygenation integrated pilot plant test device. The device comprises a conical ascending cylinder device, an outflowing cylinder device, a Venturi air inlet device, a motor driving device and an intelligent power source switch system. An intelligent power source switch controls a motor to intermittently drive blades to rotate to generate upward lifting power, bottom water sequentially flows through an ascending cylinder, a shrinkage pipe, an aeration chamber and the outflowing cylinder device, and water on the upper layer of a lake and reservoir and water on the lower layer of the lake and reservoir are mixed; negative pressure is generated at the shrinkage pipe due to the fact that the flow rate is high; due to the Venturi principle, air is sucked into the shrinkage pipe sequentially through an air inlet pipe and a flexible hose and enters the aeration chamber with water from the bottom of the ascending cylinder, the aeration blades aerate the water with the air in the periodic running process, and the aerated water enters external water through the outflowing cylinder device. The mixed aerated core units are arranged on the surface layer of the water, no complex air supply device or underwater pipeline system is needed, use and maintenance are convenient, and the investment and running cost for improving the water quality of the lake and reservoir is lowered.

Description

Technical field: [0001] The invention belongs to the field of water quality pollution control of lakes and reservoirs, and in particular relates to an intermittent mechanical mixing-surface oxygenation integrated pilot device, which is suitable for stratified lakes and reservoirs with a large mixing water depth, and oxygenates the water body to control the water body. source pollution and eutrophication. Background technique: [0002] Lakes and reservoirs are the most precious fresh water resources that can be directly used in the world. Among them, reservoirs are gradually becoming the main water supply source for most cities, and the importance of water source reservoirs is becoming increasingly prominent. At present, the eutrophication problem of lakes and reservoirs is very prominent. The deterioration of water quality in lakes and reservoirs directly affects the sustainable use of urban water resources, and even more seriously threatens the safety of urban water supply....

AI Technical Summary

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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