WET TREATMENT OF FLUE GAS

摘要

PURPOSE:To always recover a necessary amt. of recovered water by controlling the flow rate of the cooling medium supplied to an exhaust gas cooler by detecting the temp. of the outlet exhaust gas of the cooler and controlling the setting of the cooling temp. of the outlet exhaust gas of the cooler corresponding to the consumption speed of the recovered water obtained by codling exhaust gas. CONSTITUTION:Cooled moisture saturated combustion exhaust gas increased in humidity is indirectly cooled and water is recovered from the exhaust gas to be effectively utilized. In this case, the temp. of the outlet exhaust gas of an exhaust gas cooler 10 is detected by a temp. detector 20 to control the flow rate of the cooling medium supplied from cooling medium supply piping D to the cooler 10 and the setting of the cooling temp. of the outlet exhaust gas of the cooler is controlled corresponding to the consumption rate of the recovered water of a recovered water tank 12 obtained by the cooling of the exhaust gas by a temp. regulator 21. As a result, a necessary amt. of recovered water can be always recovered.