Which means the pressure to adopt better methods outlet Tags: Before pressurizing the chamber outlet and the stairwell is also used as a normally open Grille (usually can be double louvers), this approach is has the following characteristics: among the stairs and the front room (for front room) the case of fire doors fully closed, the front compartment air volume is relatively evenly distributed across all layers, each of the front chamber is not pressurized air supply (usually 600-1000m3 / h ), as long as the design is generally appropriate fire pressure delivery outlet, does not appear before the chamber (for front room) and corridors (or room) in the case of the pressure difference exceeds the maximum differential pressure values ??promise. In the case of the stairwell and the front door, the pressure to open the door before chamber layer will decline rapidly, air volume stairwell would be to open the door before chamber basic flow layer, and the first air supply chamber itself, the flowing open floor The proportion also become large. Moreover, the door layer, the more dispersed wind that open layers of air volume redistribution greatly affected. Furthermore, the front door floor room also has a non-air, which reduce or even avoid the stairwell open air supply to non-leakage layer of the front room, it is undoubtedly very beneficial. Moreover, non-layer for a front door to prevent smoke chamber air flows to non-fire layer is also advantageous through the elevator shaft. Above practices have their own characteristics. Which method is better pressurization air use has not been determined, it needs further examination practice. Leafy pressure delivery outlet control device decouple its small force provided by electromagnetic force, and can they successfully reach the valve opening of the hanger bar assembly and tension spring connection has been improved multi-leaf pressure delivery outlet, so hang rod assembly constituted by two levers, and electromagnetic absorption of iron provided as long as the lever is disengaged so that the two forces, and shut down the tension spring is not directly connected to the coupling plate, so leafy pressure delivery outlet is greatly reduced so that the hanger bar assembly decoupling the force required. Leafy pressure delivery outlet and electrical interlock control means, coupled with the building air shaft, forming a complete building smoke control system. Can effectively remove smoke. Multi-leaf rear pressure delivery outlet can be formulated aluminum air flow control valve, double Grille having two mutually perpendicular slices adjust the horizontal and vertical page page sheet point of view, adjust air diffuser face normally closed pressure delivery outlet, to change the range, outlet of the frame width of two wide and narrow frame border can be used for the special requirements of the ventilation system. Sheng clean air conditioning (Figure), normally closed pressure delivery outlet, pressure delivery outlet provided by the Texas Air Conditioning Equipment Co., Ltd. Sheng-purification. Texas Air Conditioning Equipment Co., Ltd. Sheng-purification (www.dzhffj.com) located in Dezhou City, Shandong Province, Wuhan City acres of industrial park. Scraps and development in the wave of market economy, the current clean air conditioning Sheng Tong has a high profile in fan, ventilation equipment, and enjoys a good reputation. Sheng purification of air conditioning made the whole network business alliance certification, marking our service and management level has reached a new height. Sheng clean air-conditioning staff willing to work with all people of insight and common development, for a better future.