Sudden pressure rise detector

Details Sudden pressure rise detector Sudden pressure rise detector

1990-05-25

1992-06-16

Tolin, Gerald P.

Electricity: circuit makers and breakers

Fluid pressure

Diaphragm

92 5R, 73717, 200 815, 200 83W, H01H 3534

Patent

active

051226286

ABSTRACT:
Apparatus for detecting a sudden rise in pressure of a source thereof is disclosed which is especially useful for activating explosion suppression or isolation equipment by virtue of the fact that the apparatus is capable of detecting a sudden, incipient rise in pressure in a containment system which could result in a destructive overpressure in the system. The sudden pressure detection apparatus is provided with a housing having a pair of opposed passages defining fluid inlets closed with deflectable diaphragm means interconnected by a rod assembly having means thereon for operating a switch which controls activation of the suppression or isolation equipment. One of the housing inlets is adapted to be coupled to the source of system pressure. A pressure equalization conduit extends between and intercommunicates the housing passages to equalize the pressure on the diaphragm means. Restriction means within the path limits the rate at which equalization occurs so that the diaphragm means deflect and actuate the switch upon sensing of a sudden overpressure.

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