Regulacijsko rashladni ventil

undergraduate thesis

• Title (english): Steam conditioning valve
• Author: Eric Hruban
• Mentor: Ivica Galić (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2024-02-29, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering; General Mechanical Engineering (Construction)

Abstract

Regulacijsko rashladni ventili se koriste kao važni elementi upravljanja u procesnoj industriji.
Koriste se za reguliranje protoka, tlaka i temperature pare koja prolazi kroz ventil. Pomoću
svoje geometrije i pladnja regulira tlak, a nakon regulacije tlaka miješanjem s rashladnom
vodom se regulira i temperatura.
Prvo je potrebno odabrati vrstu regulacijskog ventila koji će se koristiti, nakon toga važan
korak za konstruiranje regulacijskog rashladnog ventila je računanje koeficijenta protoka jer
definira geometriju pladnja/kaveza za traženi pad tlaka i potrebni maseni protok rashladne
vode na temelju traženog pada temperature.
Također važan dio ovog rada je provjeriti čvrstoću stijenke ventila pod visokim tlakom i
viskom temperaturom. Posebna se pažnja obraća i na brtve koje se postavljaju te je proveden
proračun za te brtve. Konačno su za konstrukciju odabrane i prikladne normirane prirubnice.

Abstract (english)

Steam conditioning valves are used as important control elements in the process industry.
They are used to regulate the flow, pressure and temperature of the steam passing through the
valve. Valve geometry and trim are important because that is what regulates the pressure and
after the pressure regulation, the temperature is also regulated by mixing it with cooling
water.
It is necessary to choose the type of control valve that will be used, after that an important
step for constructing a steam conditioning valve is to calculate the flow coefficient and the
required mass flow of cooling water. The flow coefficient is used to define the geometry of
the trim/cage for the desired pressure drop and the required mass flow of cooling water is
determined with the desired temperature drop in the valve.
After that an important part of this work is to check the strength of the valve wall under high
pressure and temperature. Special attention is also paid to the gaskets that will be installed,
calculation for these gaskets has been carried out. Finally, suitable standardized flanges were
selected for the construction.

• Keywords: Regulacijsko rashladni ventil; koeficijent protoka.
• Keywords (english): steam conditioning valve; flow coefficient
• Language: croatian
• URN:NBN: urn:nbn:hr:235:220775
• Study programme: Title: Mechanical Engineering; specializations in: Design, Process and Energy Engineering, Production Engineering, Engineering Modelling and Computer Simulation, Marine Engineering, Industrial Engineering and Management, Materials Engineering; Course: Design; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka strojarstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka strojarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2024-02-27 19:19:16