METHOD FOR OPERATING DEVICE FOR REMOVING FLOWED IN FOREIGN MATERIAL IN HEAT EXCHANGER

摘要

PURPOSE: To prevent breeding of marine living things inside a filter element and further protect an operation of a plant against its disturbance by a method wherein a plurality of inflow foreign material removing device are mounted for one heat exchanger against influence of marine living things or other troubles. ;CONSTITUTION: In the case where two inflow foreign matter removing devices are installed, operation is carried out normally with inflow foreign matter removing devices 1 and 2. In the case where either of the inflow matter removing devices is troubled, cooling water inlet valves 5 and 6 and cooling water outlet valves 7 and 8 at the device showing a certain trouble can be closed and then their maintenance work can be carried out. During this period, the other inflow foreign matter removing device can be operated, so that the heat exchanging performance of a condensor 3 is not reduced. Before the marine living things adhere to the device or during a period from adhesion to their death, the cooling water inlet valve 5 and the cooling water outlet valve 7 are closed to shut off supply of sea water, causing the environment in the inflow foreign matter removing device to be the one in which marine living things cannot live. Thus adhesion of the marine living things can be prevented.;COPYRIGHT: (C)1995,JPO