Differential fire and explosion protection system
US5103916A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 23, 1991 |
| Grant date | Apr 14, 1992 |
| Priority date | — |
| Expiry date | Sep 23, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2219/00263
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A differential fire and explosioin protection system is for a containment enclosure which receives pneumatically conveyed process air containing a combustible media. A pair of temperature sensors located in opposed relationship in the outlet duct of containment enclosure are responsive to changes in the outflow temperature at different rates. One temperature sensor has a thin metallic sheathed probe, while the other sensor is provided with a relatively thick wall sleeve in surrounding relationship to the probe. Control means connected to the temperature sensors is adapted to activate fire and/or explosion suppression or isolation equipment in response to a predetermined differential in temperature as sensed by the sensors during a certain time interval.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.