Safety device for igniting fuel gases discharged by a flare
US4490106A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 19, 1981 |
| Grant date | Dec 25, 1984 |
| Priority date | — |
| Expiry date | Aug 19, 2001 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23Q7/10
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
Safety device for igniting fuel gas discharged by the orifice of a flare stack, incorporating a pilot light whose nozzle issues into the vicinity of the orifice of the flare, said pilot light which is equipped with an ignition device is connected by a supply pipe to an auxiliary fuel gas source, said supply pipe being provided with a valve having an opening position and a closing position which are controlled by a mechanism connected by a first servo-system to the detector detecting the admission of the gas to be burned into the flare stack such that the detection of a flow of gas into said stack controls the opening position of the valve and the detection of the stoppage of this flow controls the closing position of the valve, wherein the ignition means of the pilot light comprises a refractory body located in the extension of the nozzle of the pilot light, said solid body being provided with heating means for raising it and maintaining it at a temperature of at least 800.degree. C. and constituting a thermal energy store such that the reduction of its surface temperature due to a stoppage of the heating means is below 50.degree. C. per minute in the range 700.degree. to 1000.degr…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.