Wyniki wyszukiwania - BazTech

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Nowoczesne materiały i technologie do budowy gazociągów wysokiego ciśnienia oraz rurociągów technologicznych na terenach górniczych

Szewczyk P.

Nafta-Gaz

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2017

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R. 73, nr 10

778--783

PL

Na świecie dostępne są technologie rur kompozytowych do budowy gazociągów wysokiego ciśnienia, które mogą być również wykorzystane do budowy rurociągów technologicznych na terenach zakładów górniczych ropy i gazu. Stosowanie ich w Polsce ograniczone jest przepisami oraz brakiem warunków technicznych do ich projektowania, budowy i eksploatacji. W artykule przedstawiono analizę krajowych przepisów oraz aktualny stan w zakresie normalizacji. W oparciu o istniejące specyfikacje techniczne oraz przewidywane obciążenia i oddziaływania na rurociągi opracowano wstępne założenia do budowy sieci gazowych wysokiego ciśnienia i rurociągów technologicznych na obszarach poszukiwań ropy i gazu.

EN

Composite pipe technology for the construction of high pressure gas pipelines is available worldwide, which can also be used to construct technological pipelines in oil and gas mines. In Poland the use of such pipelines is limited by regulations and lack of technical conditions for their design, construction and operation. The article presents an analysis of national legislation and the current status of standardization. Based on the existing technical specifications and anticipated loads and impacts on pipelines, preliminary guidelines for the construction of high pressure gas networks and technological pipelines for the areas of oil and gas exploration was developed.

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Investigation of Circular Woven Composite Preforms for Composite Pipes

Amid H., Jeddi A. A. A., Salehi M., Dabiryan H., Pejman R.

Autex Research Journal

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2016

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Vol. 16, no. 2

100--108

EN

The main traditional technique for commercial manufacturing of composite pipes is filament winding in which the winding angle and the discontinuity of the structure (caused by starting and ending points of the winding process) are two important matters of concern. In the present study, circular woven fabric with its orthogonal net-shaped continuous structure was produced from polyester yarns. Fabric was wet with epoxy and hand lay-up was used to manufacture the composite pipes. Composite pipes were subjected to internal hydrostatic pressure and their burst strength was recorded. In addition, tensile strength of flat laminas was assessed in the warp and weft directions. We estimated and analysed the failure strength of composite pipes using Tresca’s failure criterion and Finite Element (FE) modeling. The experimental burst strength was almost 23% more than the FE model and 77% more than the theoretical estimate.

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Simulation studies of fatigue degradation process with reference to composite pipes

Wróbel G., Rojek M., Szymiczek M.

Journal of Achievements in Materials and Manufacturing Engineering

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2012

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Vol. 55, nr 2

596--599

EN

Purpose: The work deals with the principle of utilization of simulation models of fatigue degradation processes of composite materials as well as acoustic wave propagation for diagnostics of state of exhaustion carrying capacity of composite pipes. Design/methodology/approach: The basic aim of the assignment is working out the model of the propagation of the acoustic waves in inhomogeneous resilient resort representing the composite material, in the condition of acoustic diagnostic signal stimulation. Findings: The modelled analysis of the results of the process of the acoustic wave propagation with the use of material of thin-walled coating of pipe made of epoxy-glass, confirms the possibility the parameters of physical model of fatigue degradation process to be identified. Research limitations/implications: The dynamic load by course and distribution of surface corresponds to the cycle of the diagnostic impulse of the acoustic wave. Practical implications: The application of the procedure of simulation with reference to propagation of acoustic wave with identical period to models of various degradation level, allowed to seize the impact of structural features of the model on the speed of the wave propagation. Orignality/value: Paper is representing simulation models of fatigue degradation processes of composite materials.

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Rodzaje włókien szklanych stosowanych we współczesnych rurach poliestrowych

Jasiczak J., Ślosarczyk A.

Instal

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2002

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nr 11

73--75

PL

W artykule omówiono technologię wykonywania rur warstwowych poliestrowych zbrojonych włóknem szklanym. W pierwszej części artykułu podano ogólne dane o rurach kompozytowych. Następnie zwrócono uwagę na trwałość rur w zależności od odporności chemicznej różnych rodzajów włókien szklanych. Podano także podstawową literaturę z tego zakresu.

EN

In the article the technology of the performance of the stratified, polyester pipes reinforced with glass fibre was discussed. In the first part of the article the general data concerning the composite pipes were shown. Successively the pipe durability depending on chemical resistance of different types of the glass fibres was brought to the readers' attention. The basic literature in this field was also mentioned.