Pressure dissolved gas water supply mechanism and pressurized dissolved gas floatation device

By using an industrial-grade air compressor unit and a large-capacity air storage tank, combined with a buffer dehydration tank and a pressure reducing valve, the problem of discontinuous air supply from mobile air compressors was solved, achieving stable pressure and bubble quantity within the dissolved air flotation tank, thus improving the flotation effect and system stability.

CN224350425UActive Publication Date: 2026-06-12DAYE SPECIAL STEEL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DAYE SPECIAL STEEL CO LTD
Filing Date
2025-07-09
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

The inability of mobile air compressors to operate continuously results in inconsistent air intake into the dissolved air tank, causing fluctuations in the amount of air dissolved in the dissolved air water. This leads to instability in the formation of tiny air bubbles, affecting the flotation effect.

Method used

An industrial-grade air compressor unit and a large-capacity air storage tank are used, combined with a buffer dehydration tank, pressure reducing valve and intake regulating valve to ensure a continuous and stable supply of compressed air, controlled within the range of 0.4-0.5MPa. The flow rate is adjusted to stabilize the pressure in the dissolved air flotation tank, and the buffer dehydration tank is used to remove water vapor, thereby achieving pressure balance in the dissolved air flotation tank.

Benefits of technology

This achieved stable pressure within the dissolved air flotation tank, improved the stability of tiny air bubbles, enhanced the treatment effect of suspended solids and oils, and ensured the continuous operation and stability of the system.

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Abstract

The utility model relates to wastewater treatment technical field, concretely relates to a pressure dissolved gas water supply mechanism and pressurized dissolved air flotation device. The utility model provides a kind of pressure dissolved gas water supply mechanism, including air flotation dissolved gas tank, air compressor unit, buffer water removal tank, pressure reducing valve and air inlet regulating valve;The air compressor unit is connected with the air inlet of buffer water removal tank by air inlet pipeline, and the air outlet of buffer water removal tank is connected with the air inlet connecting port of air flotation dissolved gas tank by dissolved gas tank air inlet pipeline, and the buffer water removal tank is used to remove water vapor in compressed air, and at least one air inlet regulating valve is installed on the dissolved gas tank air inlet pipeline. The compressed air pressure is controlled in the best 0.4-0.5MPa dissolved gas pressure range by pressure reducing valve, and the opening of air inlet regulating valve is adjusted simultaneously, so that the compressed air into air flotation dissolved gas tank and the dissolved gas water discharged from air flotation dissolved gas tank reach a balanced state, and finally the effect of dissolved gas is improved.
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