| 摘要 |
PURPOSE:To improve the reliability of a sampling measured value and to reduce the burden on an operator and exposure by flushing automatically sampling piping and equipment connecting with it. CONSTITUTION:An automatic pressure reducing device 4 is connected to process piping 1 through sampling piping 3 equipped with a sample intake valve 2. Sample fluid exiting from this automatic pressure reducing device 4 is cooled through a cooler 5; part of it is discharged from drain piping 8 through a valve 7 after its radioactivity level is detected by a detector 6, and the remainder is discharged directly from drain piping 9. Flushing piping 11 equipped with a flushing valve 10 is connected to the downstream side of the sample intake valve 2 of the sampling piping 3. when the flushing valve 10 is opened, flushing water 12 is admitted into the sampling piping 3 through the flushing piping 11 to flush the piping 3 and attached equipment, and then discharged from the drain piping 8 and drain piping 9 respectively. |
