CRUD FEEDING METHOD AND DEVICE FOR ATOMIC POWER PLANT

摘要

PURPOSE: A CRUD(Chalk River Unidentified Deposit) feeding method and device for an atomic power plant is provided to feed a CRUD by using an AC moving magnetic field exciter. CONSTITUTION: A safe-end nozzle(2) is mounted to a wall of a pressure container(1) of an atomic furnace. A sleeve(3) is mounted inside the safe-end nozzle(2). An AC moving magnetic field exciter body(4) is inserted into the sleeve(3). The exciter body(4) is connected to a power supply(5) by a cord(6). A moving magnetic field is formed in the sleeve(3) by a three-phase AC. A magnetic effective range(7) of the exciter body(4) is fit to a distribution area of a CRUD between the sleeve(3) and the safe-end nozzle(2). A predetermined AC is supplied to the exciter body(4) by operating a voltage regulator. The moving direction of the magnetic field should be fit to the feeding direction of the CRUD.