Disclosed is a mixed jet flow fire extinguishing system, including a water spray nozzle and a powder spray nozzle. A water spray port of the water spray nozzle and a powder spray port of the powder spray nozzle do not overlap; super absorbent resin powder sprayed from the powder spray nozzle is externally mixed in the air with a water flow sprayed from the water spray nozzle. A powder spray direction A of the powder spray nozzle is inclined relative to a water flow spray direction B of the water spray nozzle. The technical bottleneck of using sodium polyacrylate resin powder as a fire extinguishing agent in the prior art is solved, so that the sodium polyacrylate resin powder can be smoothly and continuously sprayed into a fire, without blocking the powder spray port.

The application discloses a mixed-spray firefighting device, which includes a water nozzle and a powder nozzle. The water nozzle is disposed around an outside of the powder nozzle, and a powder spray port of the powder nozzle is provided behind a water spray port of the water nozzle. A fire-extinguishing agent powder sprayed from the powder nozzle and a water flow sprayed from the water nozzle are mixed in air outside the firefighting device. The fire-extinguishing agent powder is preferably sodium polyacrylate resin powder. The application solves the technical bottleneck of using the sodium polyacrylate resin powder as a fire-extinguishing agent in the prior art, so that the sodium polyacrylate resin powder can be sprayed into a fire field smoothly and continuously without blocking the powder spray port.

A simulated roof firefighting training apparatus includes a rectangular frame having first and second side members and bottom and top members attached to the first and second side members to form a roof area, each of the bottom and top members including spaced apart rafter supports on inner faces thereof, first and second lifting arms having first ends pivotally mounted to first ends of the first and second side members at an intermediate positions along their lengths, first and second vertical supports attached, respectively, to the first and second side members at positions proximate to the bottom member of the frame, raising mechanisms pivotally mounted between the side members and the first lifting arms, respectively, and fixed vertical supports attached to side members or the top member at positions proximate to a second end of the side members.

Described are inerting systems that may be used on board an aircraft or other passenger transportation vehicle to reduce a risk of fire due to electronic components or to other elements in a compartment and to assist in preventing or extinguishing any fire or hazardous condition that may occur. The systems include a source of inert gas such as oxygen depleted air generated from a fuel cell on board the aircraft. The oxygen depleted air or other inert gas is conveyed through ducts to compartments that house the electronics, thus changing the conditions in the compartment to be less conducive to fire.

The technology relates to a submersible water lifting assembly and automatic fire fighting system for unmanned platforms having said system (1) that is efficient yet simple to install, energy saving, noise free and economical. The submersible water lifting assembly can comprise a High flow Ratio ejector Pump (30/30A) that utilizes under water arrangements of unmanned platform and enables the fire-fighting system to efficiently lift water from the sea water; using the force of existing water injection system; eliminating the requirement of diesel engine driven pump, for lifting the water. It avoids fire risk of the safety system itself, even in conditions of a large fire, unlike that of the prior art.

An appliance hub for use in an upper portion of an enclosure can include a substrate configured to be positioned in an upper portion of an enclosure. The appliance hub can include a climate control apparatus mounted on the substrate and the climate control apparatus can be configured to regulate a temperature within the enclosure. The appliance hub can include one or more lighting elements configured to provide light within the enclosure, a plurality of fluid lines connected to the substrate and configured to provide fluid service and return to the climate control apparatus, and/or a plurality of electrical connections connected to the substrate and configured to provide electrical power and/or data to at least one of the climate control apparatus and the one or more lighting elements.

The present invention is a shipping container adapted to isolate and extinguish a fire within the container, the container comprising a container body having a bottom, an interior wall defining an internal region, an opening into the internal region, a cover positionable over the opening, an insert or liner provided within the container and at a fixed distance from its interior wall, the insert having apertures extending therethrough, the region between the container's interior wall and bottom and the insert containing a free-flowing expanded glass granulate having fire insulating, fire suppressing and smoke absorbing properties.

A protective barrier that will typically be installed beneath ceilings during construction work being performed on ceilings or roofs of buildings. The protective barrier can be comprised entirely of one material or of different materials connected by seams. Some or all of these materials can be designed to fail when contacted by water via dissolution, melting or through some other destructive process initiated by contact with water. Some or all of the materials comprising the protective barrier can be designed to fail at a certain temperature. This failure can create access points from the ceiling through the protective barrier to the area being protected by the barrier, which can allow water from a fire suppression system to reach a fire located below the protective barrier.

This relates to apparatus that can form dilute aqueous firefighting compositions from an aqueous concentrate.

A manual activation system includes a pulley movable between an inactive position and an active position, a tension member wrapped about the pulley, the tension member having a tensile force acting on the pulley, and at least one arm rotatably mounted adjacent to the pulley. The at least one arm has a groove configured to cooperate with a portion of the pulley to selectively oppose the tensile force.