Intelligent dispersion oxygenating device for local low-oxygen area of mine

By deploying intelligent diffusion oxygen supplementation devices in localized low-oxygen areas underground in coal mines, real-time oxygen monitoring and automatic response have been achieved. By utilizing Venturi tube premixing and vortex fan turbulence technology, the problems of lagging and low efficiency in the treatment of localized low-oxygen environments have been solved, improving safety and efficiency.

CN224532789UActive Publication Date: 2026-07-21SHANXI LUAN GRP LUNING MENGJIAYAO COAL IND CO LTD
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Patent Information

Application Number
CN202521961015.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-12
Publication Date
2026-07-21
Estimated Expiration
2035-09-12

AI Technical Summary

Technical Problem

Existing technologies for treating localized low-oxygen environments in coal mines suffer from slow response, low efficiency, and safety hazards, making it difficult to meet dynamic safety requirements.

Method used

The system employs a collaborative design of an oxygen concentration monitoring unit, an intelligent control unit, an oxygen source unit, and a gas diffusion unit to achieve real-time monitoring, automatic response, and uniform diffusion of oxygen. It also utilizes Venturi tube premixing and vortex fan turbulence technology to ensure safe and uniform oxygen distribution.

Benefits of technology

It improves the safety of the downhole working environment, reduces the health and life risks caused by low oxygen, reduces labor intensity, improves the accuracy and efficiency of treatment, and avoids the hidden dangers of oxygen overload.

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Abstract

The utility model belongs to the technical field of coal mine safety protection, and particularly relates to a mining local low-oxygen area intelligent dispersion oxygenating device which comprises an oxygen concentration monitoring unit, an intelligent control unit, an oxygen source unit, a gas dispersion unit and an intrinsic safety type shell. The oxygen sensor is used for monitoring the oxygen concentration of a target area in real time and transmitting a detection signal to the intelligent control unit, the control unit sets a starting and alarming threshold value, when the detection value is lower than the set threshold value, the control unit drives the electromagnetic valve to be opened and starts the vortex fan, oxygen enters the Venturi tube after being depressurized through the pressure reducing valve, and the Venturi tube is started. And the air is premixed with outside air and then is disturbed and dispersed to the surrounding space through the fan, so that quick, uniform and safe oxygen supplementation is realized. An audible and visual alarm is integrated in the shell and used for reminding operators to pay attention. The device is compact in structure and convenient to move, oxygen supplementation can be automatically started in the local low-oxygen environment, the operation risk caused by insufficient oxygen is avoided, the underground ventilation and oxygen supplementation efficiency is improved, and personnel safety is guaranteed.
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