Complement fan: especially in multilayer basement (eg: -2, -3 layer), the more the more less by the lower air passage communicating with the outside, alone smoke machine, resulting in greater negative pressure, reduce smoke efficiency, smoke exhaust fan slower adoption fill and send them to the outside air, reducing the negative pressure, so that the flue gas discharge pressure fan easier: general use in the stairwell and elevator room, not so toxic fumes enter. stairwell and down because it is China Unicom, so the pressure can also open the exhaust outlet of the chassis, as long as the air evenly wind chassis, it is generally done every 2 or 3 layers vertical blinds since air while the front room is Unicom's not so conducive to fire in order to escape, is considering opening fire floor and the adjacent layer of air wind chassis, so to make an electric outlet. dampers generally used instead of 280 degrees, 280 degrees, turn off the fuse. and fire protection systems linkage was found open fire signal pressure fan --- ---- before opening fire floor and the adjacent layers of the air chamber. pressure delivery outlet (multi-leaf smoke vents) in the construction of how to arrange? Pressure delivery outlet, also known as multi-leaf smoke vents, pressure delivery outlet (multi-leaf smoke vents) in the construction of how to arrange it? Pressure delivery outlet (leafy exhaust port) installation, note the following two points: the first point: positive outlet (multi-leaf smoke vents) in the basement ventilation, the pressure delivery outlet (leafy exhaust port) reasonable arrangement of exhaust pipes and exhaust vents wind-proof enclosure, leafy exhaust port with the usual exhaust, doubles exhaust duct and exhaust port when the fire; basement lanes naturally considered by the wind, the other layer by the usual blast system doubles as a fire up air system. Each exhaust, exhaust and air supply system should be set shafts, inlet should be located in the ground clean place, if there is a certain distance from the main building with ground floor better, it will be less affected by the gas fire; if there is some ground in the main building distance better, its impact will be small by fire smoke, air vents should be located above the towers level to reduce the impact on the ground environment exhaust. The second point: positive outlet set and control in the design should also be noted: When an exhaust system and the burden of two smoke two or more partitions, according to the maximum amount of exhaust smoke partition area multiplied by 120 m / ( h · m.) calculation, therefore, in the pipeline system to the appropriate set smoke valves, exhaust valves or electric valves to achieve this requirement. _ _ Wind wind chassis chassis chassis provides air conditioning Watson by Texas plant. Texas Watson air-conditioning plant (www.wchuaxin.com) (www.wchuaxin.com) in heat, refrigeration and air conditioning equipment in the field devoted boundless enthusiasm and passion, Watson air conditioning has been customer-centric, for customers to create philosophy value, quality, service to win market, and sincerely hope to cooperate with the community to create success, create brilliant. Related businesses are welcome inquiries, contact: Su Jingli.