| 摘要 |
PURPOSE:To catch effectively impurities, by setting an attaching direction of a filter so that the exit and entrance sides of the filter face to each positive current at the entrance and exit sides of an orifice with respet to the positive curret direction of sodium. CONSTITUTION:An entrance-side filter 2 is constituted by a cylindrical filter 8, a bottom filter 9, a filter pressing plate 10, a precipitation part 11 and an expansion pipe 12, and the filter 9 is provided so as to face to a piping 6. Then, sodium passed through an orifice 1 is passed a flowmeter B16, an economizer 13, an exit side filter 3 and entrance side piping 19 and is returned to the piping 6. On this occasion, impurities are caught effectively by attaching the filters so that the exit sides of the filters 2, 3 face to each positive current side of the sodium at the entrance and exit sides of the orifice 1. |
