Intelligent temperature and pressure gauge assemblies (52) for use with vessels (24) having pressurized hazard suppression materials therein include temperature and pressure sensors (136, 138) coupled with a digital processor (72) with associated memory for storing empirical temperature and pressure data. The data includes normalized linear temperature-pressure curves consistent with static or slowly changing temperature conditions experienced by the vessels (24), as well as nonlinear temperature-pressure curves consistent with rapidly changing temperature conditions. In use, the assemblies (52) repeatedly sense the temperature and pressure conditions of the hazard suppression material and compare these sensed values with the stored values, and generate an output in conformance with the comparison. In this fashion, the assemblies (52) compensate for rapidly changing temperatures without generating false failure signals.

A rupture disc valve device as provided herein is configured to selectively release a pressurized material. In some embodiments, the rupture disc has a burst pressure rating less than a pressure of the pressurized material. The valve device selectively braces the rupture disc until release of the pressurized material is desired. To release the pressurized material, the valve device is configured to remove or adjust the bracing support to the rupture disc, allowing the pressurized material to burst the rupture disc.

A fire suppression system includes at least one high pressure gas source containing an inert gas, at least one low pressure gas source containing an organic halide gas, a distribution network connected with the high pressure gas source and the low pressure gas source to distribute the inert gas and the organic halide gas, and a controller in communication with the distribution network. The distribution network includes flow control devices configured to control flow of the inert gas and the organic halide gas. The controller is configured to initially release the inert gas in response to a fire threat to reduce an oxygen concentration at the fire threat below a preset oxygen concentration threshold, and release the organic halide gas to increase an organic halide gas concentration at the fire threat above a preset organic halide gas concentration threshold while the oxygen concentration is below the preset oxygen concentration threshold.

A fire suppression system includes at least one first gas source containing an inert gas, at least one second gas source containing an organic halide gas, a distribution network connected with the first gas source and the second gas source to distribute the inert gas and the organic halide gas, and a controller. The distribution network includes a common manifold, input lines connecting the first gas source and the second gas source with the common manifold, output lines leading from the common manifold, and flow control devices. The controller is in communication with the distribution network and configured to distribute the inert gas responsive to a fire threat signal and determine whether to distribute the organic halide gas based upon a location of a fire threat.

A safety assembly provided with an automatic fire extinguisher system includes an engagement member, a blocking member, and an extension member. The engagement member is slidably received within an outlet port of a valve housing. A blocking member having a first blocking member portion and a second blocking member portion is at least partially received within a cavity defined by the valve housing. The extension member extends between the engagement member and the blocking member.

Systems and methods for fire protection of a fixed space using a fire protection unit having a fixed volume of firefighting agent; a manifold coupled to the fixed volume and an actuator axially aligned with the manifold to pressurize the firefighting agent within the manifold for discharge and dispersion to protect the fixed space.

Fire fighting system with a first feed platform arranged for feeding a pipe system having extinguishing nozzles with extinguishing fluid comprising a first sub-system with a first extinguishing fluid reservoir, at least two first propellant gas reservoirs, and a first control circuit, wherein the first propellant gas reservoirs each have a valve for pneumatically coupling the respective first propellant gas reservoir to the extinguishing fluid reservoir and the respective valves can be pneumatically activated in each case via an outlet of the respective other valve, a second sub-system having a second extinguishing fluid reservoir, at least two second propellant gas reservoirs and a second control circuit, the second propellant gas reservoirs each having a valve for pneumatically coupling the respective second propellant gas reservoir to the extinguishing fluid reservoir, and the respective valves being activatable pneumatically in each case via an outlet of the respective other valve, characterized in that the first control circuit is operatively connected to a first one of the valves of the first subsystem and to a second one of the valves of the second subsystem, and in that the second control circuit is operatively connected to a second one of the valves of the first subsystem and to a first one of the valves of the second subsystem.

A method for efficiently treating spontaneous ignition of the remaining coal in a large area goaf of a shallow-buried coal bed, which method integrates leaking stoppage, airflow control and fast inerting and cooling so as to efficiently prevent and treat the spontaneous ignition of the remaining coal in the large area goaf of the shallow-buried coal bed.

Extinguishing a fire by pressurizing a tank containing an extinguishing liquid. According to the invention, the tank containing the liquid is provided with an expulsion outlet at a front end, a gas generator (17) is installed at a rear end, and a diaphragm forming an inflatable bag (19) is installed inside the tank, being folded prior to triggering in a confinement space at the front of the gas generator, the outlet from the generator being associated with a deflector (47) including a rearwardly-directed ejection passage (49).

A fire-fighting system including: a pressurized gas supply; a vessel for storing a solution of water and a foaming agent, the vessel being connected to the pressurized gas supply for pressurizing the vessel in use; and a mixer for mixing gas from the pressurized gas supply with the solution to generate foam, wherein the mixer includes: a solution inlet for receiving the solution from the vessel; a foam outlet; one or more injection ports connected to the pressurized gas supply for injecting gas bubbles into the solution to form a mixture of the solution and the gas bubbles; and a foaming chamber extending between the solution inlet and the foam outlet, the mixture flowing through the foaming chamber to generate foam at the foam outlet, at least one internal surface of the foaming chamber including a shearing structure for shearing the gas bubbles as the mixture flows through the foaming chamber.