| 摘要 |
PURPOSE:To reduce heat loss by processing at low temperature, unprocessed water in which heavy metal elements are condensed, through an ion exchanger resin. CONSTITUTION:A circulation system is composed such that cooling water from a steam/liquid separator 3 is firstly compressed by a pump 5 and flows through a filter 21 from its inlet 22, and heavy metal elements are adsorbed and/or filtrated with a filter medium 28, the water flows out from the cooling water outlet 23, and is sent into the cooling tube 2 in the reactor 1 through an open- close valve 24, cools the inside of a reactor 1 and then goes back to the separator 3. A part of the cooling water that flows into the filter 21 goes out without adsorption/filtration of heavy metal elements from the unprocessed water outlet 25, and is cooled down in a heat exchanger 9 and then processed at low temperature through an ion exchanger resin tower 10. In this case, unprocessed water flows along the surface of the filter medium 28 of the filter 21, washes away a part of copper and iron adsorbed on and near the surface of the filter medium, and flows out. Thereby copper and iron are condensed from the water before entering the filter 21. |
