| 摘要 |
<p>A sampling valve for a coal gasification plant with fly ash or fluidization pressure reactor enables to take a fluid or gas sample of raw gas coming out at high temperature. In order to achieve an optimal regulation of operating conditions, the raw gas composition should be determined at the nearest possible point from the ractor outlet and this in spite of the high temperature and of a high content of solids capable of condensation at such zone. To this effect, the sampling valve should be provided with a heating device and/or a cleaning device, the heating counteracting a condensation and the cleaning being intended to remove the elements which nevertheless undergo a condensation process.</p> |
