Monitoring fails in tubes using signals digital processing / Sistema de monitoramento de falhas em tubulações por meio de processamento digital de sinais

AUTOR(ES)

Carlos Antonio Berto Junior

DATA DE PUBLICAÇÃO

2008

RESUMO

Natural gas has hazardous contaminants that, besides being corrosive, compromise the quality for the consumption. For in such a way the present residual water condensation in the gas can start a local corrosive process, which could cause damage to the structure of the gas ducts. Due to the great length of a gas duct, corrosive components decrease its quality and cause great operational problems. To evaluate the reduction of the metallic wall thickness for duct, proceeding from corrosive effect, and to identify to fictions and other notconformity, it is basic that the continuous monitoring is made and that techniques and methods of predictive maintenance are used. Currently the techniques adopted for such evaluation consist the inclusion of a body test, known as pipeline inspection gauge (PIG), with sweepings by means of ultrasound, thermograph, optical sensor, hall-effect and analysis of electric resistance, beyond carried through special surveys of field on the surface of the ground. Thus, the present work had as optimization of the detention process, with sights to the reduction of costs and precision in the identification of imperfections. For such, a PIG independent for the continuous monitoring for internal region in ducts was implemented endowed with cameras infra-red, what it the same differentiates this equipment of the current ones for end. The cameras supply recorded images that are processed digitally and in a present not-volatile memory in the equipment. A software is used to verify the images and, at the same time, to identify to notconformity gifts. These information will be used as orienting in the taking of decision concerning the maintenance process that will have to be used for the solution of the joined problems

ASSUNTO(S)

fails detection localização de falhas (engenharia) processamento de sinais - tecnicas digitais comunicação de sinais communication fails fault location (engineering) detecção de sinais signal processing

Documentos Relacionados

• Restauração de gravações fonograficas por meio de processamento digital de sinais
• Monitoramento de sinais biomédicos baseado em computação móvel
• Monitoramento em tempo real da qualidade de sinais de vibrações, utilizando inteligência artificial
• Caracterização de sinais elétricos cerebrais de bovinos usando técnicas avançadas de processamento  digital de sinais
• Real time monitoring of vibration signals quality using artificial intelligence