2067 KB32 KB199920252014Liu, LeiZhang, DeshengZhao, Jiyunštevilka:10letnik:60str. 665-674, SI 122ISSN:0039-2480COBISSID:13735451URN:URN:NBN:SI:doc-RGJZCMQIenZveza strojnih inženirjev in tehnikov Slovenije et al.Strojniški vestnikdušilna odprtinanizek tlakpilotni elektromagnetni ventilvelik pretokvoda kot medijzgradba glavnega ventilaDesign and research for the water low-pressure large-flow pilot-operated solenoid valve|The basic requirements of the valve-control coupling for control valves are quick response, high flow capacity, and anti-blocking ability. In this article, a pure water hydraulic test-bed is built, and the pressure distribution characteristics between the throttle nozzle and the pilot valve, as well as the flow characteristics in the throttle orifice are researched. Following that, the water medium low pressure large-flow pilot operated solenoid valve is designed. The influences of throttle nozzles' diameter and other parameters on the dynamic and static characteristics of the valve are analysed via AMESim simulation software. The optimized combination of parameters of the solenoid valve group is determined. The experiment results show that the normal working pressure drop of the designed solenoid valve group is approximately 0.07 MPa, the opening time is 0.3 to 0.4 s, the closing time is approximately 1 s; it possesses better low pressure characteristics and rapid response characteristic, which can satisfy the requirements of valve-control couplingSklopke s krmilnimi ventili so razširjene pri težkih premogovniških skreperjih (transporterjih), tračnih transporterjih, črpalkah, sesalnih ventilatorjih in drugi težki opremi, saj imajo pomembno vlogo pri izboljševanju obratovalnih pogojev in pri varčevanju z energijo. Sestav nizkotlačnega ventila za velike pretoke je eden ključnih delov sklopke s krmilnimi ventili za velike moči. Osnovne zahteve, ki jih mora izpolnjevati sklopka s krmilnimi ventili, so odzivnost, velika zmogljivost pretoka in varnost pred blokiranjem. Cilj raziskave je zasnova vodnega nizkotlačnega pilotnega elektromagnetnega ventila za velike pretokeTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaUniverza v Ljubljani, Fakulteta za strojništvo