Pressure relief device

Details Pressure relief device Pressure relief device

1989-03-03

1990-03-20

Favors, Edward G.

Power plants

Combustion products used as motive fluid

Different fluids

60 3925, 60 39464, 122 4D, 122504, F02G 300, F16P 700

Patent

active

049090283

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).

REFERENCES:
patent: 4306411 (1981-12-01), Zoll
patent: 4498285 (1985-02-01), Kreij
patent: 4838209 (1989-06-01), Hjalmarsson

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