Upflow/downflow heated tube circulating system

摘要: A fluid flow circuit for a boiler having combustion chamber and an exhaust passage. In one embodiment there is provided at least upflow evaporative generating bank module in the passage downflow passage, positioned downstream of module. One or more upper downcomers are connected to steam drum supply water lower header If needed, convection pass wall enclosures can also be fed by their inlet headers. may each (and outlet headers enclosures) supplying plurality furnace circuits which extend along boiler. The opposite end risers which, turn, drum. through completing circuit.