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Title:VZDRŽEVALNI POSEGI NA HIDRAVLIČNEM BLAŽILNIKU SUNKOV
Authors:ID Šimunić, Dejvid (Author)
ID Lovrec, Darko (Mentor) More about this mentor... New window
ID Ulaga, Samo (Comentor)
Files:.pdf VS_Simunic_Dejvid_2010.pdf (2,48 MB)
MD5: 0E0C30424FD29FBA0E71BD35648B260D
PID: 20.500.12556/dkum/e1f705e3-5a9f-436b-ad37-495eb9dfc60e
 
Language:Slovenian
Work type:Undergraduate thesis
Organization:FS - Faculty of Mechanical Engineering
Abstract:POVZETEK Avtor te diplomske naloge, Dejvid Šimunić, je zaposlen v podjetju Numip.d.o.o, ki je visoko usposobljen in kakovosten partner za izvajanje projektov, zunanje vzdrževanje, specialne tehnologije in proizvodnjo v jedrski energetiki, klasičnih elektrarnah, farmaciji ter drugih zahtevnih objektih procesne industrije. Delo opravlja v nuklearni elektrarni Krško (v nadaljevanju NEK), kot kontinuirani vzdrževalec na področju stabilnih komponent, največ v skupini, ki se ukvarja z vzdrževanjem, vizualno kontrolo, obnovo ter testiranjem mehanskih in hidravličnih blažilnikov sunkov. Za varno delovanje Nuklearne elektrarne Krško morajo različni sistemi na tem objektu brezhibno delovati. Glede na to, da se večina medijev, potrebnih za obratovanje elektrarne (para, voda…), pretaka po cevovodih različnih premerov, so le-ti ustrezno pritrjeni s fiksnimi podporami in vzmetmi. To so tako imenovane aktivne komponente, ki zagotavljajo celovitost sklopov. V primeru vodnih in parnih udarov ter potresov pa za varnost cevovodov skrbijo mehanski in hidravlični blažilniki sunkov. To so pasivne komponente, ki v času obratovanja elektrarne zagotavljajo normalno termično gibanje cevovodov, svojo osnovno funkcijo pa opravijo v primeru zgoraj opisanih dogodkov. V tej nalogi so na kratko opisani sestavni deli hidravličnih komponent, njihove osnovne naloge, demontaža in montaža, ter vizualni pregled blažilnikov sunkov. Jedro in cilj diplomske naloge je odkrivanje napak z vizualno kontrolo, analizirati pojavljajoče se napake z metodami FTA - analiza drevesa napak (angl.: Fault Tree Analysis), FMEA- analizo možnih napak in analizo njihovih učinkov (angl.: Failure mode and effect analysis), ovrednotiti njihovo »težo« ter podati napotke za odpravo napake ali ukrepe za preprečevanje pojave napake.
Keywords:Ključne besede: Hidravlični blažilnik sunkov, vizualni pregled, FTA - analiza drevesa napak, FMEA- analizo možnih napak in analizo njihovih učinkov
Place of publishing:Maribor
Publisher:[D. Šimunić]
Year of publishing:2009
PID:20.500.12556/DKUM-12953 New window
UDC:621.039-567.2(043.2)
COBISS.SI-ID:13954838 New window
NUK URN:URN:SI:UM:DK:WAKFFTOH
Publication date in DKUM:21.01.2010
Views:3037
Downloads:259
Metadata:XML DC-XML DC-RDF
Categories:KTFMB - FS
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Secondary language

Language:English
Title:MAINTENANCE INTERVENTION ON THE HYDRAULIC SNUBBER
Abstract:ABSTRACT Author of this diploma thesis, Dejvid Šimunić, is employed by a company called Numip.d.o.o that is highly qualified and a high-quality partner for the implementation of projects, external maintenance, specialized technology and production of nuclear energy, conventional power plants, pharmacy and other complex parts of process industries. He works at a nuclear power plant (NPP), as continually maintainer in the field of stable components, most time in a group, which deals with maintenance, visual inspection, and renewal and control examination of mechanical and hydraulic shock-absorbers. For a safe operation of Nuclear Power Plant different systems have to work perfectly. Most of the media necessary for the operation of power plants (steam, water ...), flows through the pipelines of different diameters, which is why they are properly attached to the fixed supports and springs. These are the so-called active components, which ensure the integrity of the connection. In case of water and steam strokes and earthquakes the safety of pipelines is ensured by mechanical and hydraulic shock absorbers. These are passive components which during normal operation of power plants provide thermal movement of piping; its basic function is performed in the case of events described above. In this task are briefly described the components of hydraulic components and their basic functions, dismantling and assembling, and visual inspection of the shock-absorbers. In this task are briefly described the components of hydraulic components and their basic functions, dismantling and assembling, and visual inspection of the shock-absorbers. The main goal of the diploma thesis is based on detecting faults by visual inspection, analysis of errors occurring with the methods FTA - Fault Tree Analysis, FMEA-analysis of potential errors and to analyze their effects ( Failure mode and effect analysis ), to evaluate their "weight" and to provide guidance to correct a mistake or measures for the prevention of errors.
Keywords:Hydraulic shock-absorbers, visual testing, FTA - Fault Tree Analysis, FMEA - Failure mode and effect analysis


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