Patent · US Expired

System for detecting faults in the wall of a high-temperature pressure vessel

US4159447A · kind A · utility

9Cited by

9References

5Claims

0Family size

Assignees

Inventors

Paul Gernhardt · Chesapeake, US
Wolfgang Grams · Herne, DE
Wilhelm Danguillier
Siegfried Pohl · Oberschleißheim, DE

Key dates

Filing date	Sep 22, 1977
Grant date	Jun 26, 1979
Priority date	—
Expiry date	Sep 22, 1997

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC10J2300/1823
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

A system for detecting faults in the wall of a high-temperature pressure vessel, such as a fuel gasifier. The wall comprises an outer metallic shell having an inner refractory lining, together with cooling tubes extending along the refractory lining. In order to detect a fault, such as a rupture in a cooling tube and resultant melting of the refractory in the vicinity of the fault, one or more electrical conductors are embedded in the refractory and connected at their opposite ends to an external energizing circuit such that when the refractory melts, so also will the conductor, thereby breaking the circuit to indicate the existence of the fault.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.