Veremeenko M. Increasing of the energy and ecological efficiency of the ventilation emission purification from dust in whirlers

The thesis views the problem of the purification of the dust containing flow in the whirlers - working out of the dust catchers with a lower hydraulic resistance and higher efficiency. There is offered a new scheme of the whirler flow organization which allows to distribute the radial flow along the height and to decrease its intensity in the conical part of the unit. The thesis also includes the comparison of the programme results with the data of the laboratory research of performance of the whirler with perforated exhaust pipe (relative divergence amouted 3,9%) and with experimental data of NIIOGAZ (imprecision 2,9%). There was also executed the laboratory research of the whirler with perforated exhaust pipe which confirms decreasing of the hydraulic resistance of the unit to 7 % and increasing of the purification rate up to 3-4% in comparison with ZN-11. We carried out a complex experiment with the purpose to determine the influence of different factors to the whirler efficiency. On the basis of this experiment there was found the equation of the regression used for determination of the flow purification rate. We wrote the programme for whirler optimization in accordance with three influencing parameters: relative diameter and the depth of the exhaust pipe immersion, tangential flow speed. The laborated design of the whirler with perforated exhaust pipe was applied by a regional department "Donbassmontazhspezstroy" and PE "Promventilatsiya" with a total economical effect of 33,5 thousand per year.