DEVICE FOR HUMIDIFYING AND HEATING A COMBUSTIBLE GAS TO BE REFORMED FOR A FUEL CELL UNIT

摘要

The invention relates to a device for humidifying and heating a combustible gas to be reformed for a fuel cell unit, comprising a housing (1), said housing having an inlet (2) located in an upper region and an outlet (3) located in a lower region for the combustible gas, and comprising a heat exchanger (4), which is arranged within the housing (1) and through which counter to the current of the combustible gas to the humidified and heated a heat transfer medium delivering the required heat can flow from the bottom to the top, and comprising a device for feeding water for humidifying the combustible gas. The device for feeding the water for humidifying comprises a chamber (5) that is disposed in the lower region of the housing, in which the water is in thermal contact with a lower region of the heat exchanger (4) for heating, and a steam flow path (6) leading from the chamber (5) upward for transporting water that has vaporized in the chamber (5) to the upper region of the housing.