Mine arch roadway air volume detection device and method

Abstract

The invention discloses mine arch roadway air volume detection device and method, wherein the device comprises a plurality of air velocity transducers and a plurality of I / V conversion and amplification filter circuits, an A / D conversion circuit and a microprocessor module connected with the A / D conversion circuit, wherein the output terminals of the plurality of I / V conversion and amplification filter circuits are all connected with the input terminals of the A / D conversion circuit, the input terminal of the microprocessor module is connected with a key operation circuit, and the output terminal of the microprocessor module is connected with an alarm display circuit; the method comprises the following steps: 1. determination of position of a ventilation measuring point; 2. arrangement ofair velocity transducers; 3. determination of an air velocity error compensation characteristic equation; 4. storing of the air velocity error compensation characteristic equation to the microprocessor module; and 5. detection of mine arch roadway air volume. According to the invention, the design is novel and reasonable, the air velocity transducers can be mounted conveniently, data acquisition and transmission are steady and reliable, an accurate air volume detection result can be obtained, the practicability is strong, and the device is convenient for popularization and use.

Description

technical field [0001] The invention belongs to the technical field of mine ventilation testing, and in particular relates to a mine arched roadway air volume detection device and method. Background technique [0002] As an important parameter to evaluate the performance of the fan, the air volume is particularly important for its accurate measurement. "2016 Coal Mine Safety Regulations" and "AQ1011-2005 Specifications for Safety Inspection and Inspection of Main Ventilator System in Coal Mine" have different requirements on the composition and concentration of underground air in coal mines, the air velocity under different working conditions, the wind measurement system, and the anti-wind facilities. The wind speed, wind pressure, air volume of the ventilation system under mining and excavation and the measurement of the air volume of the mine ventilator have made detailed regulations. [0003] At present, the commonly used air volume measurement methods in the prior art i...

AI Technical Summary

Problems solved by technology

The common wind measurement method of the wind speed method is to build a test bracket and install a wind speed sensor at the wind measurement section to measure. Due to the disturbance of the wind flow by the test bracket, the wind speed around the test bracket increases, resulting in inaccurate air volume test results.

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