diplomsko delo
Dejvid Šimunić (Author), Darko Lovrec (Mentor), Samo Ulaga (Co-mentor)

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

hidravlični blažilnik sunkov;vizualni pregledi;FTA;analiza drevesa;FMEA;analiza možnih napak;

Data

Language: Slovenian
Year of publishing:
Source: Maribor
Typology: 2.11 - Undergraduate Thesis
Organization: UM FS - Faculty of Mechanical Engineering
Publisher: [D. Šimunić]
UDC: 621.039-567.2(043.2)
COBISS: 13954838 Link will open in a new window
Views: 2328
Downloads: 215
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Other data

Secondary language: English
Secondary title: Maintenance intervention on the hydraulic snubber
Secondary 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.
Secondary keywords: hydraulic shock-absorbes;visual testing;fault tree analysis;failure mode and effect analysis;
URN: URN:SI:UM:
Type (COBISS): Undergraduate thesis
Thesis comment: Univ. v Mariboru, Fak. za strojništvo
Pages: VI, 49 f.
Keywords (UDC): applied sciences;medicine;technology;uporabne znanosti;medicina;tehnika;engineering;technology in general;inženirstvo;tehnologija na splošno;mechanical engineering in general;nuclear technology;electrical engineering;machinery;strojništvo;
ID: 988689