Pipeline dosing or pipeline aeration device

Abstract

The invention provides a pipeline chemical-dosing or aerating device which is arranged in a pipeline. The pipeline chemical-dosing or aerating device comprises a chemical spray or gas spray cone and a chemical-dosing or gas-dosing pipe, wherein the outer surface of the chemical spray or gas spray cone is provided with a plurality of fixed wings, and the chemical spray or gas spray cone is provided with a plurality of spray holes; one end of the chemical-dosing or gas-dosing pipe is connected with the bottom of the chemical spray or gas spray cone, and the chemical-dosing or gas-dosing pipe is communicated with the plurality of spray holes. The pipeline chemical-dosing or aerating device provided by the invention can be used for reducing the water flow resistance by changing the water flow angle inside the pipeline, thereby being favorable to the spray of chemicals or gas.

Description

technical field [0001] The invention relates to a dosing or aeration device, in particular to a pipeline dosing or aeration device in the field of water treatment. Background technique [0002] In the water treatment process, the pipeline dosing device and the pipeline aeration device play a very important role. At present, the widely used pipeline dosing device is a combined structure of a pipeline helical variable-diameter medicine mixer and a medicine injection nozzle. In use, it was found that this kind of pipeline dosing device is easy to increase the water resistance in the pipeline due to the design of the spiral guide vane in the pipeline; and because the drug injection nozzle is not designed to reduce water resistance, it is easy to cause uneven spraying, and the pipeline The water flow inside will easily cause the injection nozzle to spray medicine at low pressure on the downstream side, and not spray medicine at high pressure on the upstream side, resulting in dr...

AI Technical Summary

Problems solved by technology

In use, it was found that this kind of pipeline dosing device is easy to increase the water resistance in the pipeline due to the design of the spiral guide vane in the pipeline; and because the drug injection nozzle is not designed to reduce water resistance, it is easy to cause uneven spraying, and the pipeline The water flow inside will easily cause the injection nozzle to spray medicine at the downstream side with low pressure, and not spray medicine at the countercurrent side with high pressure, resulting in drug retention and pipe blockage

[0003] The combined structure of the pipeline spiral variable-diameter drug mixer and injection nozzle, because there is no turbulence device, the increase of water resistance in the pipeline changes the water flow velocity, and the medicine and water enter the next-level treatment system without sufficient fusion, causing water Treatment of resin failure and filter clogging, affecting water treatment water quality

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