Research On Atoming Characterics Of Water Mist Nozzle And It's Network And Fire Suppression Experiment

According to the World Center of fire statistics, fires accounted for the loss of economic value of an athlete. Halon fire extinguishing system severely damaged atmospheric ozone layer will be a total ban on the use. In selecting extinguishing agent, should consider a clean, green, the fire rapidly, and the maturity of the technology on human security, investment and other appropriate factors. Market needs instead of the traditional fire-extinguishing agent of products. High Pressure Mist Fire clean technology, the efficiency of firefighting, has become internationally recognized Halon fire extinguishing system in the mainstream one of the alternative technologies.Nozzles are various types of high pressure water mist extinguishing system is a key component. On the subject of nozzle mechanism of atomization, the characteristics and performance of firefighting, choice of centrifugal nozzle and its theoretical analysis of the design of the nozzle guide certain conclusions.Using testing technologies and the use of laser particle size analyzer for a wide nozzle of a large droplet diameter measurement; System flow and pressure changes; Nozzles corrosion resistance, resistance effect. Of high pressure water mist extinguishing system work, components of the system, movement and release processes, main technical parameters have been discussed.FLUENT6.0 use software to simulate single nozzle and 2×2 nozzle in the combustion chamber temperature, velocity and pressure changes in the law.According to various protection targets, the various types of fire extinguishing system, Design of a fixed single phase high pressure water mist extinguishing system prototype. The prototype used a fire performance test results show : high-pressure water mist fire extinguishing system in good condition and water consumption, rapid fire of personnel, equipment will not cause harm.