Razvoj vodno hidravličnega krmiljenega protipovratnega ventila

Velkavrh, Vesna (author), Majdič, Franc (mentor)

Vodna hidravlika je iz vidika okoljske nevtralnosti perspektivno področje, ki je danes, v primerjavi z oljno hidravliko, še v začetnih fazah razvoja. Izbor komponent vodne hidravlike na tržišču je omejen zgolj na osnovne komponente. Rezultat zaključne naloge je zasnova vodno hidravličnega krmiljenega protipovratnega ventila, ki je namenjen delovanju pri tlakih do 350 bar in imenskem pretoku 60 l/min. Zasnove ventila se lotimo na podlagi konceptualnih rešitev, katerim sledi izdelava 3D modela izdelka ter prikaz ustreznih preračunov. Na podlagi modela je izdelana tehnična dokumentacija posameznih komponent, ki je v celoti pripravljena za izdelavo prototipa. Teoretično so prikazane karakteristike tlačnega padca v odvisnosti od pretoka skozi ventil, tok notranjega puščanja in tokovne razmere pri dvostopenjskem odpiranju ventila.

• Language: Slovenian
• Keywords: vodna hidravlika, voda, pogonsko krmilna hidravlika, krmiljen protipovratni ventil, razvoj, tesnjenje, nerjavni materiali
• Work type: Final paper
• Typology: 2.11 - Undergraduate Thesis
• Organization: FS - Faculty of Mechanical Engineering
• Place of publishing: Ljubljana
• Publisher: [V. Velkavrh]
• Year: 2020
• Number of pages: XV, 42 f.
• PID: 20.500.12556/RUL-119108
• UDC: 621.22:621.646.2(043.2)
• COBISS.SI-ID: 28065795
• Publication date in RUL: 03.09.2020

Secondary language

• Language: English
• Title: Development of water-hydraulic pilot check valve

Abstract

Water hydraulics is an alternative solution for hydraulic applications that are showing promising prospects in line with the general trend of increasing environmental awareness. The market assessment shows a scarce supply of water hydraulic components, which is limited to basic elements of operation control hydraulics. The aim of this thesis is therefore the development, evaluation and production of a pilot operated water hydraulic check valve with a maximum operating pressure of 350 bar and a nominal flow rate of 60 l/min. The development is based on one of the prepared conceptual designs, followed by the construction of a detailed 3D model and the presentation of the relevant calculations. Technical drawings for the assembly and the individual components are prepared, in order to produce a fully functional prototype of the product. The work also includes a theoretical analysis of the pressure-flow characteristics of the valve, the evaluation of the leakage flow and the demonstration of the flow during the two-stage opening process of the valve.

• Keywords: water hydraulics, water, operation control hydraulics, pilot check valve, development, sealing, stainless materials