Apparatus for remotely positioning sensing devices in a reactor during operation thereof

摘要

An apparatus for remotely positioning sensing devices within a reactor. The apparatus comprises a pressure-tight housing located adjacent to the reactor wherein the housing has a port connected by means of a passageway to an inlet of the reactor. Valve means are provided within the passageway for isolating the housing from the reactor. A plurality of cylinders are rotatably mounted within the housing about an axis thereof such that each of the cylinders may be aligned with the port in the housing. Each of the cylinders have a piston and a ram. The ram includes a sensing device such as a thermocouple. Means are provided for moving the piston within the cylinder such that when a cylinder is registered with the housing's port, the sensing device may be positioned in the reactor.