ENERGY CONTROL DEVICES FOR TWO-WAY CENTRIFUGE FANS

On the basis of analysis of the known means of regulating mine bilateral centrifugal fans offered a fundamentally new way of active aerodynamic control processes at the entrance to their impeller. Mine fans are the main link in the process chain to ensure safe hygienic conditions in mines. Airing deep mines especially for parallel operation of fans, most effectively provides two-way centrifugal fans have a higher wind loading, in combination with high performance lower sound power level of ease of maintenance and reliability in operation.
A large variety of modes of ventilation of mines, as well as their changes over time related to organizational and process a mining show to hard fan of high adaptability requirements, that is, the ability to cost-effectively provide the required ventilation mode. However this indicator centrifugal fans, provided with axial guide vanes or swirl are less economical depth control (Gψ = 0.55) compared to the axial fan provided with rotary vanes of impellers (Gψ = 0.7).
The paper describes the authors developed and patented an invention schematic structural diagram of a centrifugal fan with double-sided energy regulator (ER). The proposed solution allows to increase the cost of the fan control the depth by a separate regulation the flow cross section of the impeller flow and control flow, as well as improving the efficiency of interaction between the manager and the main flow.
Using the law of conservation of angular momentum, in relation to ER double centrifugal fan, an equation of aerodynamic characteristics of double centrifugal fan.
Application of ER to improve the adaptability of the centrifugal fan of the main airing helps to reduce their energy intensity by 8% and an increase in the depth control pressure at 15%, which is equivalent to the annual economic effect, commensurate with the value of the fan.

Keywords

Fan, power regulator, double-sided centrifugal fan, aerodynamics, control flow, control of engine operation mode, adaptive turbomachinery, turbomachinery efficiency.

Issue number: 5
Year: 2017
ISBN:
UDK: 622.44
DOI:
Authors: Makarov N. V., Patrakeeva I. Yu., Sveridov K. K.

About authors: Makarov N.V., Candidate of Technical Sciences, Assistant Professor, Head of Chair, e-mail: mnikolay84@mail.ru, Patrakeeva I.Yu., Graduate Student, e-mail: Patrakeeva2208@yandex.ru, Sveridov K.K.1 – Student, Ural State Mining University, 620144, Ekaterinburg, Russia.

REFERENCES:
1. Makarov N. V. Obosnovanie parametrov i razrabotka energeticheskikh regulyatorov shakhtnykh tsentrobezhnykh ventilyatorov (Justification of parameters and development of energy
regulators mine centrifugal fans), Candidate’s thesis, Ekaterinburg, UGGU, 2008, 155 p.
2. Abramovich N. G. Prikladnaya gazovaya dinamika (Applied gas dynamics), Moscow, Nauka, 1976, 888 p.
3. Loytsanskiy L. G. Mekhanika zhidkosti i gaza (Fluid and gas mechanics), Moscow, Nauka, 2003, 846 p.
4. Makarov V. N., Agushev V. A., Kovyrov E. I. Gornye mashiny (Mining machines), Sverdlovsk, NIPIgormash, 1982, pp. 121–127.
5. Lyaptsev S. A., Potapov V. Ya. Sovremennye problemy nauki i obrazovaniya. 2012, no 1, pp. 178.
6. Makarov V. N., Fomin V. I., Volkov S. A. Izvestiya Ural’skogo gosudarstvennogo gornogo universiteta. 2008, no 23, pp. 85–87.
7. Makarov N. V., Belov S. V., Fomin V. I., Makarov V. N., Volkov S. A. Patent RU 2390657, 02.04.2008.
8. Makarov N. V., Soldatenko A. A., Lavrenov N. E, Makarov V. N. Izvestiya Ural’skogo gosudarstvennogo gornogo universiteta. 2015, no 4 (40), pp. 79–83.
9. Makarov V. N., Fomin V. I., Volkov S. A. Izvestiya Ural’skogo gosudarstvennogo gornogo universiteta. 2008, no 23, pp. 99–102.
10. Venikov V. A. Teoriya podobiya i modelirovanie primenitel’no k zadacham elektroenergetiki (Theory of similarity and modeling in problems of electrical energy industry), Moscow, Vysshaya shkola, 1966, 487 p.
11. Ventilyatory radial’nye (tsentrobezhnye) i osevye. Metody aerodinamicheskikh ispytaniy. GOST 10921-74 (Radial (centrifuge) and axial fans. Methods of aerodynamic testing. State Standart 10921-74), 1974, 15 p.
12. Time V. A. Optimizatsiya tekhniko-ekonomicheskikh parametrov gidroturbin (Optimization of performance characteristics of hydraulic turbines), Leningrad, Mashinostroenie, 1976, 271 p.

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