Mine overall precise wind measurement sensor optimal arrangement method

A layout method and sensor technology, applied in mine/tunnel ventilation, mining equipment, earthwork drilling and mining, etc., can solve the problems of difficult accurate wind speed monitoring, low wind speed, and low sensitivity

Active Publication Date: 2017-07-14
山东蓝光软件有限公司
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  • Application Information

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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 tha...

Method used

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  • Mine overall precise wind measurement sensor optimal arrangement method
  • Mine overall precise wind measurement sensor optimal arrangement method
  • Mine overall precise wind measurement sensor optimal arrangement method

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specific Embodiment approach

[0096] like figure 1 Shown is the network topology diagram of the mine ventilation system. Assumption figure 1 Among them, the air ducts 10, 11, and 12 are the air ducts where the mining face with large wind resistance changes; the air ducts 3, 4, and 5 are the natural air ducts of the air inlet area with basically constant wind resistance; 13 is the unmeasurable air duct where the wind speed sensor cannot be arranged; the air duct 16 is the air duct where the fan is located, and the working characteristic curve of the fan is:

[0097] P f =-0.09921Q2 +2.54271Q+4861.9637

[0098] Step 1, establish a complete mine ventilation system network topology diagram and number it, and obtain the numbered mine ventilation system network topology diagram G=(V, E), where V={1,2,3,4,5, 6,7,8,9,10,11} is the node set, E={1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16 } is the wind channel set. That is, in figure 1 There are 11 nodes and 16 air ducts in total.

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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...

Claims

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Application Information

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IPC IPC(8): E21F1/02
CPCE21F1/02
Inventor 卢新明尹红
Owner 山东蓝光软件有限公司
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