Leakage cause analysis of a flange joint designed according to standards

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F17%3APU125109" target="_blank" >RIV/00216305:26210/17:PU125109 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Leakage cause analysis of a flange joint designed according to standards

Popis výsledku v původním jazyce

The design of flanges is linked to the use of relevant standards; in the chemical, petrochemical and energy industries. The modern standards EN 13445 [1], which are focused on design of unfired pressure vessels, are often used to design flanges. There is a danger of possible flange joints leakages in operation. Whether the flange connection is designed with standardized parts where the calculation is not necessary or it is designed by strength calculation according to this standard, such procedure does not ensure that the flange joint is sealed, as will be shown in the article. This situation is, for example, a leak due to insufficient contact pressure on the sealing surfaces. The flange joint undergoes several load-bearing operations. When assembling, the cold flange connection is tightened to the specified pretension. When operating media is introduced, there may be significant changes in stress distribution due to thermal expansion, presenting a transient state between assembly and nominal operatio

Název v anglickém jazyce

Leakage cause analysis of a flange joint designed according to standards

Popis výsledku anglicky

The design of flanges is linked to the use of relevant standards; in the chemical, petrochemical and energy industries. The modern standards EN 13445 [1], which are focused on design of unfired pressure vessels, are often used to design flanges. There is a danger of possible flange joints leakages in operation. Whether the flange connection is designed with standardized parts where the calculation is not necessary or it is designed by strength calculation according to this standard, such procedure does not ensure that the flange joint is sealed, as will be shown in the article. This situation is, for example, a leak due to insufficient contact pressure on the sealing surfaces. The flange joint undergoes several load-bearing operations. When assembling, the cold flange connection is tightened to the specified pretension. When operating media is introduced, there may be significant changes in stress distribution due to thermal expansion, presenting a transient state between assembly and nominal operatio

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

20704 - Energy and fuels

Projekt

<a href="/cs/project/LO1202" target="_blank" >LO1202: NETME CENTRE PLUS</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů