Diseño de un Horno para Tratamiento Térmico del Rodete de la Turbina Francis (CELEC Unidad de Negocio Hidroagoyán).

Abstract

It has done the Design of a Heat Treatment Furnace for the Francis turbine runner for the company CELEC Hidroagoyán business unit. The company´s goal is to implement a workshop that can repair rims that are subject to continuous wear due mainly to erosion and cavitation, preventing the completing of these works abroad, optimizing time and costs involved in this process. In the repair is provided welding material required to be heat treatment being necessary to relieve internal stresses. Using software we have simulated the behavior of the impeller against the temperature and time of the treatment. The best alternative is an electric oven intermittently that for heating uses electric heaters placed on the still of the same, automatically controlled through a PID (Proportional, Integral, Derivative). The Furnace chamber has a coating of insulating material, which allows considerable energy savings in this process and ensures a safe outdoor temperature for operators in the workshop, while the sill is firebrick, its structure is made of metal profiles that are mostly connected by bolts and for the cladding sheet metal is used.