Cover type shallow water upflow circulating contact reoxygenation device

Abstract

The invention discloses a cover type shallow water upflow circulating contact reoxygenation device which comprises a base (1) fixed in water bottom, a central rising cylinder (2) arranged on the base (1), a release head (3) which is arranged at the opening of the central rising cylinder (2) and contacted with water surface, and a petticoat (4) which is fixed outside the central rising cylinder (2) and provided with a closed top end, wherein the area between the central rising cylinder (2) and the petticoat (4) is sequentially separated into a gas collection chamber (5) and a reoxygenation area (6) from the top to the bottom; an aeration tube and cut filler (8) are arranged in the reoxygenation area (6); and at least one air outlet (9) is formed on the central rising cylinder (2) positioned at the gas collection chamber (5), and at least one water outlet port (10) is formed on the central rising cylinder (2) positioned at the reoxygenation area (6). The device has the advantages of strong reoxygenation capability, high oxygen dispersion speed, low energy consumption, large area of oxygenation service area, no bottom sludge stirring, simple equipment, convenience for assembly and the like.

Description

Technical field [0001] The invention relates to a rapid oxygenation device, in particular to a hood-type shallow-water type upflow circulating contact reoxygenation device, which is suitable for oxygenation of shallow-water lakes, reservoirs, ponds, and rivers (water depth≤3m). Background technique [0002] The black and smelly water bodies such as lakes, reservoirs and rivers caused by cyanobacteria exposure or excessive discharge of pollutants not only seriously deteriorate the ecological environment of natural water bodies, but also seriously threaten the drinking safety of water source water. The best emergency treatment technology is black and smelly water bodies. However, traditional water aeration technology has various technical limitations for the oxygenation of large-area shallow lakes, reservoirs, and rivers. For example, microporous tube aeration is difficult to install in large-area water bodies due to inconvenient installation; surface aerators consume large amounts ...

AI Technical Summary

Problems solved by technology

[0002] Black and smelly water bodies such as lakes and rivers caused by blue-green algae exposure or excessive discharge of pollutants not only seriously deteriorate the ecological environment of natural water bodies, but also seriously threaten the drinking safety of source water. At present, the best emergency treatment technology is black and smelly water bodies However, the traditional water oxygenation technology has various technical limitations for the oxygenation of large-area shallow lakes and rivers. For example, microporous tube aeration is difficult to deploy in large-scale water bodies due to inconvenient installation; surface aerators consume a lot of energy, and Difficult to fix and high maintenance costs; the patented multi-functional pumping aerator has the problems of disturbing sediment and low oxygenation efficiency, and is only suitable for local oxygenation and bottom water promotion of deep (depth > 10m) lakes , not suitable for oxygenation of shallow lake reservoirs

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