RESEARCH OF THE STRESS-STRAIGHTENING STATE OF A FLANGE CONNECTION

Pipe fittings are integral component of any pipeline systems, starting from housing and communal services farms and ending with systems with increased technical requirements security systems. The latter include oil and gas production and oil and gas refining enterprises systems water supply thermal power plants, main contours atomic power plants etc. In these industries industry is being put forward elevated requirements for strength and reliability all elements fittings, especially flanged and threaded connections. The flange is the main element connection pipeline structures, providing strong and dense detachable connection. Flanged connection simple in design, their can be easily disassembled and assembled. There are a large number various structures flanged connections. Previously attempts designing flanges were based on crude and simple assumptions. However today for research works flanged connections apply modern methods such as the finite element method elements. For this used specialized software provision, which in addition to calculation of the stress- strain state allows to predict durability joints, wear from effects of abrasive media etc. This much accelerates design and research flanged connections, but also provides high precision received results.