specializationThesis
Melhoria do desempenho operacional de válvulas de controle através de posicionadores HART
Fecha
2015-09-24Registro en:
RESENDE, Luiz Santos. Melhoria do desempenho operacional de válvulas de controle através de posicionadores HART. 2015. 61 f. Trabalho de Conclusão de Curso (Especialização em Automação Industrial) - Universidade Tecnológica Federal do Paraná, Curitiba, 2015.
Autor
Resende, Luiz Santos
Resumen
The high purity hydrogen production is one of the stages of the production of hydrogen peroxide process, being held in the PSA unit (Pressure Swing Adsorption, Adsorption System for Pressure Difference). Control valves are the most responsible for the total time of the PSA unit stopped due to flaws in their mechanical, pneumatic and electronic systems. To decrease the high rate PSA unit stops due to problems in the control valves, electro-pneumatic positioners these valves were replaced by smart positioners with HART communication protocol and installed a data acquisition system for the implementation of operational diagnostics and monitoring the operation of these valves. The system of data acquisition features high accuracy in the diagnosis of faults in the control valves. Due to reduction in the number of interventions with the removal of the control valves for the workshop, we obtained improved operating performance of the PSA unit.