| 摘要 |
A sampling valve for a coal gasification plant with a fixed bed pressure reactor enables to take a fluid or gas sample from the raw gas coming out at high temperature. In order to achieve an optimum regulation of the operating conditions, the raw gas composition should be determined at the nearest possible point from the reactor outlet, and this in spite of high temperatures and a high content of solids capable of condensation at this zone. To warrant such possibility, the sampling valve should be provided with a heating device and/or a cleaning device, the heating counter-acting the condensation and the cleaning by rinsing being used to remove the elements which nevertheless undergo a condensation process. |
