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US 4,400,097 AGranted
System for measuring temperatures in pressurized reactors
AssigneeRuhrchemie Aktiengesellschaft
InventorsWalter Koschnitzke, Paul Beuth
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AssigneeRuhrchemie Aktiengesellschaft
InventorsWalter Koschnitzke, Paul Beuth
Estimating the term…
A system for the measurement of temperatures in a reactor such as those operated under high pressure and/or temperature is disclosed. The temperature is measured by the use of a pyrometer which is in optical communication with a measuring duct which can be disposed in the wall of the reactor and is in optical communication with the reactor interior. The measuring duct comprises two concentric tubes the outer one of which extends beyond the inner tube in the direction of the reactor interior and has a conical construction immediately following the termination of the inner tube. The concentric tubes are provided with a common end section such as in the form of a cone in the direction of the reactor exterior. A hermetic housing defining a safety chamber is disposed exterior thereof, the hermetic housing having two opposed pressure type and heat resistant windows in alignment with the inner tube and the pyrometer. The hermetic housing is not normally permanently attached to the measuring duct. Means are provided to mount the measuring duct against an exterior wall of a reactor. Means are also disclosed to maintain the windows free of condensation, carbon deposits, etc. and to insure the continuous measurement of the temperature within such reactor.
An apparatus for the measurement of temperatures in reactors operated at high temperatures which comprises a pyrometer in optical communication with a measuring duct disposable through a wall of a reactor and in optical communication with the reactor interior, said measuring duct comprising two concentric tubes (8,9), the outer tube (8) extending beyond the inner tube (9) in the direction of the reactor interior and having a conical construction immediately following the end of said inner tube (9), said concentric tubes being provided with a common end section in the direction of the reactor exterior, said apparatus having a housing means formed in a plurality of sections including a valved housing section, a second section having a hermetic housing defining a safety chamber (2) and interiorly joined to one of said housing sections defined between two opposed pressure-tight and heat-resistant windows (3,4), said windows in optical communication with said pyrometer, said hermetic housing joined directly to said common end section of said housing means, said common end section comprising means to join the same to a reactor wall.
Dependencies are inferred from the claim text.