Propostas de aprimoramento do projeto e operação do balão de vapor da caldeira aquatubular de uma cooperativa agroindustrial

Abstract

The utilities sector fills a representative and vital part of the industrial segment, regardless of the main product offered, which adds to a continuous focus on improving energy efficiency and the quality of its inputs. This work, therefore, seeks to act specifically on industrial boilers by proposing solutions for a real case of liquid dragging in the steam above the usual level. At first, by the data collected from the process and experimentally measured, with the aid of statistical tools of regression and variance available in Excel, it was possible to correlate process parameters of the upper drum of the boiler with this problem. The analyzes showed, in a preliminary way, a great influence of the steam flow in this aspect, and to a lesser extent the water level followed by the pressure. Another front dealt with the physical configuration of the elements separating the phases that make up the internals of the equipment. In this one, certain proposals were suggested according to a bibliographic review and compared with the budget of a supplier in the field, with an economic evaluation of all. Due to the savings given the increase in the quality of the steam produced, it resulted in a return on investment of less than 3 years for the scenario of replacing the chevron arrangement, the one with greater technical credibility. It was also considered, qualitatively, the positive effect of the case study in reducing damage to pipes and equipment.