A FLUIDIZED BED HEAT EXCHANGER TO PRODUCE HIGH TEMPERATURE WATER BY RECOVERING WASTE HEAT FROM FLUE GAS

摘要

PURPOSE: A device to exchange heat of a fluidized bed in a type recovering combustion exhaust gas to generate hot water is provided to improve a heat transfer performance of a heat exchanger caused by a flow of water and a heat medium by forming a water fluidized bed and a heat medium fluidized bed between a heat transfer pipe arrangement installed in the heat medium fluidized bed which is positioned in a lower part and the water fluidized bed which is positioned in an upper part. CONSTITUTION: A device to exchange heat of a fluidized bed in a type recovering combustion exhaust gas to generate hot water comprises a complex fluidized bed heat exchanger (1) and a flow medium tank. The supply water gradually flowing through an upper heat transfer pipe (115) and a lower heat transfer pipe (116) is heat-exchanged in a multiple stage by the water and a heat medium flowing by high temperature exhaust gas discharged from an external combustion device and generates hot water of a high temperature. The flow medium tank supplies or recovers the water and the heat medium stored by being divided to the lower and the upper parts caused by the difference in gravity. [Reference numerals] (21) Water; (22) Heat medium