| 摘要 |
PURPOSE:To prevent the attachment of tar and to elongate the continuous operating period, by using double pipes, whose inner pipe wall surface is treated by a synthetic resin, at a piping part, where a sample gas is introduced from a process line. CONSTITUTION:A sampling device has a process line 1 and a probe 2, which has a double pipe structure, in which the tip part is inserted into the process line 1. The probe 2 comprises the double pipes, i.e., an inner pipe 2a and an outer pipe 2b. The surface of the inner wall of the inner pipe 2a is treated by a synthetic resin. A rising part 2c, which is extended vertically, is provided in the pipes. The upper parts are fixed to a flange 2d. The horizontal part of the probe 2 is inserted into the process line 1. In this constitution, attachment of tar is prevented, and the continous operating period can be elongated. |
