A nozzle for atomizing and dispersing a discharge flow of a fluid, and a spacing plate for use in the nozzle is disclosed. The nozzle includes a bonnet, including an inlet port for receiving the fluid in the nozzle, and a first surface extending outward from the inlet port. The nozzle includes at least one deflector base, including a second surface arranged opposite to the first surface. At least one spacing plate is arranged between the first surface of the bonnet and the second surface of the deflector base. The spacing plate includes at least one gap extending through the spacing plate in its perpendicular direction (P) and extending from the outer periphery of the spacing plate to a distance (D) towards the inner section of the spacing plate. A discharge port is fluidly connected to the inlet port allowing the fluid to flow from the inlet port to surroundings of the nozzle. The discharge port is created between the first and the second surface and defined by the at least one gap of the spacing plate.

The present disclosure provides a fire extinguishing system for an energy storage container which includes a fire control main engine, a cluster-level and cabin-level perfluorohexanone fire subsystem for implementing the cabin-level perfluorohexanone fire prevention, and a PACK-level water fire subsystem for implementing the water fire prevention in a battery box. According to the fire extinguishing system for an energy storage container, the present disclosure also provides a fire pre-warning control method for an energy storage container. The fire extinguishing system and the fire pre-warning control method provided by the present disclosure adopt a combined use of multi-component fire extinguishing agents and can implement a full flood irrigated PACK-level water fire prevention and a full submerged space-level perfluorohexanone fire prevention.

Water mist fire protection systems and methods for the protection of data centers having a raised floor defining an interstitial space beneath the floor. The systems and methods include the location of a plurality of automatic water mist nozzles above and/or beneath the floor to generate a water mist for effectively addressing a fire in the presence of a flow of forced air ventilation through the interstitial space. The systems and methods of water mist fire protection include the interconnection of the automatic water mist nozzles to a water supply to provide for dry pipe or preaction systems and methods. Water mist fire protection of data cen-ters using fire propagating cable is also provided.

The invention includes an air mover device used for fire mitigation and protection. The core component is an air mover unit whose discharge airstream can be positioned using air rudders and/or a directional control assembly to provide air flows in optimum directions and capacity to counter unwanted fire progression or to promote fires in cases of back-burns. Additional support components include a power supply, its fuel source, a speed control mechanism for the air mover, an air mover inlet protective screen, a sparger unit to impart suppressant or retardant into the airstream, balancing feet, a removable nozzle, and instrumentation and controls to ensure function and safety of equipment and personnel. This device can be on a static or mobile platform, towed or self-propelled and can be locally or remotely controlled.

There is described a fire-fighting apparatus comprising a housing comprising an upstream air inlet and a downstream fire-extinguishing stream outlet and a hollow body therebetween, wherein the housing houses an air stream traveling at high velocity; and a spray assembly concentrically mounted to the housing. The spray assembly comprises a fluid inlet connected to a source of fluid outside the housing; and a plurality of injecting assemblies fluidly connected to the fluid inlet and designed for breaking down an inflow of the fluid into droplets and projecting the droplets of the fluid within the air stream in a multiphase fire-extinguishing stream. The injecting assemblies each comprises a fluid outlet; a base plate through which extends the fluid outlet; a holding structure mounted to the base plate and extending downstream therefrom, and a unibody jet-fragmenting device mounted to the holding structure facing the stream of fluid exiting the fluid outlet.

A device, composition, and a process for a hybrid blend of inert gas and mist produced for fire protection by local or total flooding. The method mixes ultrafine water mist, preferably less than 20 microns diameter produced by atomization and an inert gas such as nitrogen. A homogeneous hybrid composition discharges from a swirling flow mixer-injector device. The hybrid composition extinguishes a fire source in reduced time by simultaneous and synergistic cooling with the mist and inerting with the inert gas. After extinction oxygen remains at a safe level of 12.5-15% (V). The high-velocity inert gas flow of 35-75 mph velocity in the mixing-injector column formed by an exit in the mixer-injector device entrains the low-velocity mist flowing out of atomizer. The device creates a swirling, high-speed, and expanding flow of the hybrid composition inside the fire protection volume at ambient pressure.

A technology is described for performing precision fire retardant or fire suppressant delivery from air-tankers or helicopters. A request can be received to release liquid fire retardant or fire suppressant. Drop door scheduling for the liquid can be calculated using fluid dynamics, air conditions data, airborne vehicle and target locations, digital terrain elevation data, and a ballistic model. A time point can be determined to open a drop door for an airborne vehicle based on the calculated release start point. The drop door can then be dynamically scheduled/controlled throughout the drop phase to continuously adjust for changing air vehicle, air conditions, and terrain variations.

A method of and apparatus for automatically suppressing a detected fire in a building, vessel or vehicle, using a cloud of microscopic droplets generated from a supply of environmentally-clean water-based free-radical chemical-reaction interrupting liquid, whereby the droplets are vaporized by heat energy from the fire, instantly cooling the fire and displacing oxygen, while the water-based chemical vapor interrupts the free-radical chemical-reactions in the combustion phase of the fire, while minimizing smoke development, water damage, and risk of fire re-ignition.

A method for detecting an event in or around a building. The method includes recording a baseline signal characteristic that characterizes a wireless signal transmitted between devices in or around the building during a baseline time period and recording a second signal characteristic that characterizes the wireless signal during a second time period after the baseline time period. An event in or around the building is detected in response to a determination that the second signal characteristic is abnormal relative to the baseline signal characteristic, the event degrading the wireless signal during the second time period. An alarm is triggered in response to detecting the event.

A robot for detecting and saving a life, includes: a body part including a plurality of unit joints; a head part which is provided at the front of the body part in the direction in which the body part moves forward, and which has a gripper capable of picking up an object by a plurality of tongs parts that are folded and unfolded; and an extension part capable of extending forward from the head part so as to enter a small space that is difficult for the body part to enter.