Method of monitoring furnace installations
US4508501A · kind A · utility
10Cited by
3References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 8, 1983 |
| Grant date | Apr 2, 1985 |
| Priority date | — |
| Expiry date | Mar 8, 2003 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23N5/006
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A process for the surveillance of jacketed radiant heating tubes and recuperative burners using a detector responding to the oxygen partial pressure in the exhaust gas. At low exhaust gas temperatures down to 200.degree. to 300.degree. C., an abrupt change in the detector output signal occurring due to the transition from over-stoichiometric to under-stoichiometric combustion and vice-versa is detected and is reproduced as an actuating and/or alarm signal. The process can also be used for flame surveillance, for the determination of leaks and cracks in jackets, and for surveillance of the tightness of closed magnetic gas valves.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.