Mine overall precise wind measurement sensor optimal arrangement method

Abstract

The invention provides a mine overall precise wind measurement sensor optimal arrangement method. The mine overall precise wind measurement sensor optimal arrangement method comprises the steps that a complete mine ventilation system network topological structure diagram is built; overall ventilation resistance is measured to obtain the initial state of a ventilation system; a sensitivity matrix is obtained; air ducts are divided according to the air duct wind resistance stability and importance; air ducts are divided according to the wind volume measurement necessity, sensitivity and measurability; and according to the air duct classification result and the sensitivity matrix, a ventilation network is simplified, and the optimal wind measurement sensor arrangement scheme is found according to the simplified network through the wind volume balancing law. The mine overall precise wind measurement sensor optimal arrangement method has the advantages that (1) the wind volumes of all the air ducts can be obtained in real time through common air speed sensors and the small mounting number of the air speed sensors, and a feasible solution is provided for ventilation system online analysis state recognition and diagnosis; and (2), as for the air ducts with the low air speeds, the invention provides a mounting method for low-air-speed long-distance air accumulation air speed sensors, the measurement span of the air speed sensors is increased, and the sensitivity of the air speed sensors is improved.

Description

technical field [0001] The invention belongs to the technical field of mine ventilation automation, and in particular relates to a sensor optimal arrangement method for accurate global wind measurement in a mine. Background technique [0002] Mine ventilation is one of the most important technical means to ensure mine safety and a good production environment. In the process of mine production, fresh ground air must be continuously transported to various underground operating sites to supply personnel to breathe, and to dilute and eliminate various toxic and harmful gases and mine dust underground to create a good working environment in the mine. Ensure the health and labor safety of underground workers. [0003] The main task of mine ventilation is to ensure the quality of air supply in real time according to the temperature, humidity, harmful gas and mine dust concentration of various locations in the underground, so as to meet the needs of air supply on time and on demand...

AI Technical Summary

Problems solved by technology

In addition, due to the different conditions and environments of each air duct, some air ducts cannot be installed with wind speed sensors, such as shaft shafts, air leakage channels, etc.

Even if the wind speed sensor is installed, the sensitivity of the existing wind speed sensor is low and the range is too narrow. The general wind speed sensor starts the wind speed not lower than 0.2m / s, and the range is 0.2m / s-5m / s. For lower wind speed cannot be accurately monitored

[0006] In fact, due to the influence of pedestrians and transportation equipment, the wind speed sensor can only be installed near the top of the roadway and the two sides. The wind speed in these positions is relatively low, so it brings great difficulties to the accurate monitoring of wind speed

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