CHOICE AND GROUND OF AERODYNAMIC PARAMETERS OF THE IMPELLER PORTABLE MINE ANEMOMETER APR-2

Details

Parent Category: Geo-Technical Mechanics, 2013

Category: Collection of scientific papers «Geotekhnicheskaya Mekhanika» Issue 109

UDC 622.414.2.001.2     

Authors:

M.N. Dudnik, M.S.(Tech.),

V.N. Veretennik, M.S. (Tech.),

A.I. Vishnitskiy, M.S. (Tech.)

(IGTM NAS of Ukraine)

Abstract.

The analysis of features, dignities and lacks of the devices of measuring of speed of current of air used in world practice in the rock making is given in the article. It is marked that the world tendencies of perfection of tachometrical transformers of expense of air are taken, mainly, to the improvement of construction of rotation knots, for what it is necessary to use modern wear-resistant materials or subminiaturizational ball bearings. It is shown, that optimum for the modern anemometers of high class, having the lower limit of range of measurings 0,2 – 0,25 м/s, there is the use by kryl'chatky diameters 70 – 100 mm.; diminishment of geometrical parameters of kryl'chatky, that multiplies exactness of measurings, is grounded. The method of choice of optimum aerodynamic parameters of impeller is resulted: amounts and forms of blades, corner of their setting. It is drawn on got result at perfection of the existent model APR-2, and also at creation of pre-production model of device of control of expense of air and depression of the mountain making.

Keywords:

 tachometrycal transformer, current of air, anemometer, impeller, speed, range of measurings, reliability

References:

1. State committee of Ukraine on industrial safety, labour protection and mining supervision (2010), NPAOP 10.0-1.01-10: Pravila bezpeki u vugilnirh shakhtakh [NPAOP 10.0-1.01-10 Rules of safety in coal mines], Kiev, Ukraine

2. Gorlin, S.M. (1970), Eksperimentalnaya aeromekhanika [Experimental air-mechanic], High school, Moscjw, USSR

3. Prikladnaya aerodinamika [Applied air-dynamic] (1974), Edited N.F. Krasnov, High school, Moscjw, USSR.

About the authors:

Dudnik Michail Nikolayevich, ingeneer in the Department of Rock Thermoatrodynamics and Automated Systems N.S. Polyakov  Institutute of Geotechnical Mechanics under the National Academy of Sciences of Ukraine (IGTM NASU), Dnepropetrovsk, Ukraine,

Veretennik Victor Nikolayevich, ingeneer in the Department of Rock Thermoatrodynamics and Automated Systems N.S. Polyakov  Institutute of Geotechnical Mechanics under the National Academy of Sciences of Ukraine (IGTM NASU), Dnepropetrovsk, Ukraine,

Vishnitskiy Aleksandr Ivanovich, ingeneer in the Department of Rock Thermoatrodynamics and Automated Systems N.S. Polyakov  Institutute of Geotechnical Mechanics under the National Academy of Sciences of Ukraine (IGTM NASU), Dnepropetrovsk, Ukraine,

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