24 KB455 KB24 KB199920252004Krotec, Simonštevilka:10letnik:507 stranistr. 487-493ISSN:0039-2480COBISSID:7725339URN:URN:NBN:SI:doc-0XTQWXRNenslAssociation of Mechanical Engineers and Technicians of Slovenia et al.Zveza strojnih inženirjev in tehnikov Slovenije et al.Strojniški vestnikcevne turbineoptimiranjeparameterizacijaturbine cevnevodilnikiParameterizacija momenta na krmilnem obroču in optimizacija vodilniškega mehanizma cevne turbine| The parameterization of the torque on a regulating ring and the optimization of the guide-vane mechanism of a bulb turbine|This paper deals with the guide-vane mechanism of bulb water turbines. The guide-vane mechanism pivots the guide vanes as a function of the water conditions and thus ensures the optimal use of the waterćs energy. The guide-vane mechanism of water turbines is driven by one or two hydraulic cylinders. The dimensions of the complete hydraulic system of a power plant are closely connected with the size of the hydraulic cylinders. These two parameters can have a considerable impact on the price of the guide-vane mechanism as well as the price of the hydraulic equipment and finally on the energy that is put into moving the guide-vane mechanism. In this paper the procedure for the parameterization of the hydraulic torque and the optimization of the guide-vane mechanism is described. For solving this task we used the PTC Pro/Engineer (Pro/E) Wildfire software, and the results are shown graphicallyPrispevek govori o vodilniskem mehanizmu pri cevnih vodnih turbinah. Vodilniški mehanizem skrbi za vrtenje vodilniških lopat v odvisnosti od vodnih razmer in s tem za optimalno izkoriščanje vodne energije. V prispevku je opisan postopek parameterizacije hidravličnega momenta in optimizacije vodilniškega mehanizma s ciljem zmanjšanja sile, ki jo morata zagotoviti hidravlična valja. Za rešitev te naloge je bil uporabljen programski paket PTC Pro/Engineer (Pro/E) Wildfire, rezultati pa so prikazani v grafični obliki iz katere je razviden rezultat numeričnega optimiranja vodilniškega mehanizmaTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaUniverza v Ljubljani, Fakulteta za strojništvo