2 results about "Back-fire" patented technology

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.

The invention relates to the technical field of fire-fighting equipment, and provides a suspension type dry powder fire extinguishing device and a fire extinguishing method.The suspension type dry powder fire extinguishing device comprises a pressure-resistant container, an ignition mechanism, a first valve, a controller and a detector, and a containing cavity used for storing fire extinguishing dry powder is formed in the pressure-resistant container; a storage device for supplementing fire extinguishing dry powder is arranged on the pressure-resistant container; the plurality of ignition mechanisms are arranged at the top of the pressure-resistant container and are used for spraying the fire extinguishing dry powder in the accommodating cavity out of the pressure-resistant container after the ignition mechanisms are ignited; the first valve is arranged on the output pipe of the pressure container; the controller is electrically connected with the ignition mechanism and the first valve; the detector is used for feeding back fire extinguishing information to the controller and starting the ignition mechanism. The ignition mechanisms can be started at equal time intervals through the controller, and the effect of sequential ignition is achieved; or, the ignition mechanism can be started in order through continuous detection of the detector, so that continuous spraying of the fire extinguishing dry powder and high fire source restraining capacity are kept.