Pressure relief device
US4909028A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 3, 1989 |
| Grant date | Mar 20, 1990 |
| Priority date | — |
| Expiry date | Mar 3, 2009 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF22B31/0007
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
The invention relates to a pressure-relief device in a PFBC power plant with a combustor (12) enclosed in a pressure vessel (10). The device is intended to limit the pressure difference between the combustor (12) and the surrounding space (22) in the pressure vessel (10) and to initiate pressure relief of the pressure vessel (10) out into the atmosphere. Via a conduit (54) with a rupture disc (56), the combustor (12) communicates with one or more blow-off valves (42). If the rupture disc (56) bursts, a sensor (62) indicates this and effects opening of the blow-off valve (42) via signal processing and operating equipment (64). Between the rupture disc (56) and the combustor (12) a perforated diaphragm (60) is provided. In the space between this diaphragm and the rupture disc (56) a layer of particulate, heat-insulating material (58) is provided, which restricts the heating of the rupture disc (56).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.