Xi'an automatic fire alarm control system consists of fire detectors, fire alarm control and alarm device. Fire detectors will spot fire information (smoke, temperature, light) into electrical signals transmitted to the automatic alarm controller, fire alarm controller will receive the fire signal after processing, judge finds after the operation and fire command signal output. On the one hand to start the fire alarm devices, such as sound, light alarm, etc., on the other hand to start the fire linkage and linkage mitigation system to drive a variety of fire-fighting equipment and mitigation devices. Xi'an has a high density of carbon dioxide fire extinguisher, about 1.5 times that of air. At atmospheric pressure, the carbon dioxide will be immediately vaporized liquid, generally produce 1kg of liquid carbon dioxide of about 0.5 cubic meters of gas. Thus hydrants, fire fighting, carbon dioxide gas can be ruled out on the surface of the combustion air and surrounded by objects or distributed in relatively confined space Shaanxi fire hydrant, fire hydrant reduce the oxygen concentration around the fuel tank or protective space, resulting in suffocation action fire. Also hydrant introduced carbon dioxide discharged from the storage container, the liquid will quickly vaporize into a gas, and attract some of the heat from the surrounding, it acts cool. Yulin fire hydrant fire hydrant _ _] [JW fire first quality provided by the Fire Equipment Co., Ltd. Shaanxi Jiwei. Shaanxi Jiwei Fire Equipment Co. (www.jiweixiaofang.com) (www.jiweixiaofang.com) strong, credible, in other industries, Xi'an has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Shaanxi JW firefighting equipment into the brilliant and you work for a better future!