As far as we designed several projects in recent years, in terms of, as Tianmu Road Shanghai Railway Bureau cf type electronic scheduling floor kitchen exhaust duct fans, the building a total of 16 floors, basement (about 2000m2) for the parking garage. We consider the mechanical design and mechanical exhaust smoke, which set the stairwell at each outlet, front room and other parts of the pressurized air through the fan, to form a positive pressure to prevent smoke intrusion, to ensure the safe evacuation . Set exhaust valves, the roof or the wall near the ceiling set in the pipe exhaust port, the high temperature flue gas exhaust smoke machine outdoors. And has a large area where smoke partitions, just behind where the smoke detector smoke alarm smoke partition. This is done to prevent any expansion of the scope of smoke, causing fireworks spread. Otherwise, not only affect the smoke effects, but also may be due to the high temperature flue gas sites attracted non-automatic fire sprinkler spray nozzle rupture and chaos, it will affect the effect of exhaust fan the fire, and causing unnecessary damage. Two-speed fan at the top health nuisance exhaust system made use of together we all know, when you type a lot of smoke and fire into the hot exhaust fan fire xgf and consume large amounts of air. On its harmful effects, particularly at night to smoke, cigarette in his mouth many types of toxic factors, both non-toxic and it also may be due to burning to make hypoxia suffocating to death. Every thing back to produce fire, burned by the exhaust fan in the roof, most are also the first to be smoked fainted before being burned to death, when the rate of fire spread fast smoke degree can reach 0.5-0.8m / s, straight up to 6-8m / s. In the fire, one that is fire, then a nuisance, smoke. Is off the fire extinguishing, broken smoke source, harm, exhaust system, compared with the supply of safe escape route and a favorable start the fire. Kitchen exhaust fan, exhaust fan Xiqing District, Chen Yu-conditioned factory outlets provided by Wu Cheng Chen-yu air-conditioning Limited. Wu Cheng Chen Yu Air Conditioning Equipment Co., Ltd. (www.wccykt.com) strong, credible, in Dezhou fan, ventilation equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Chenyu air conditioning and you hand into the brilliant, for a better future!