SUSPENDED COMBUSTION TYPE POWER STEAM GENERATOR CAPABLE OF RAPID AND HIGH-TEMPERATURE PYROLYSIS USING FRDF FOR EXTENDING RESIDENCE TIME OF HIGH-TEMPERATURE GAS

摘要

The present invention relates to a suspended combustion type power steam generator capable of rapid and high-temperature pyrolysis using FRDF for extending the residence time of high-temperature gas and, particularly, the present invention improves heating conditions of fluid in an arc water pipe, a hot water pipe and a downcomer by extending the residence time of high-temperature gas in a combustion chamber. The present invention is an improvement of a power steam generator using fine refuse derived fuel (FRDF), which is an alternative energy source, wherein a flameless combustion device using fossil fuel capable of structuring a new additional facility can be improved so as to address the possibility of irregular raw material supply in the ethyl alcohol fuel operations for new renewable energy, that is, FRDF. Therefore, fuel conversion operations can be carried out and a circulation path is partially restructured so as to prevent the interruption of the natural convection function of boiler water regardless of FRDF operations or fossil fuel operations. The existing power steam generator is commonly used in the class of 0.5 tons and has the problem of having a short residence time of high-temperature gas according to the heating conditions of fluid in a large capacity power steam generator of 5 tons or higher. However, the present invention extends the residence time of high-temperature gas in the combustion chamber by having a baffle plate part, such that the heating conditions of fluid can be sufficiently satisfied as a result thereof.