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.
SAKATA KENICHI
YAMAGUCHI TOKIFUMI
MIURA MICHIAKI
TAKAMI HIROSHI
KUROKAWA KUNIHIKO
MITSUBISHI PETROCHEMICAL CO
| JPS57114853A | 1982-07-16 | |||
| JP56109052B | ||||
| JPS5786739A | 1982-05-29 |
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