Electric pressure delivery outlet and muffler main difference between the use of electric pressure delivery outlet is pointing escape corridor air supply fan. It outdoor air pressure into the interior. When the building is on fire, it will produce a lot of smoke, carbon monoxide and other toxic gases and block the line of sight, through positive pressure blower air to escape the fire stairs, indoor smoke can not reach the stairs, to create conditions for people to escape. Positive pressure blower generally installed on the building roof. Muffler is the use of porous sound-absorbing materials to reduce noise. The sound-absorbing material is fixed to the inner wall of the gas flow path or arranged according to a certain pressure delivery outlet in the pipeline constitutes a resistive muffler. When sound waves enter the resistive muffler, part of the acoustic energy is converted into heat friction dissipated in the pores of the porous material, so that the sound waves through the muffler weakening. Resistive muffler portrait pure resistance on the electrical circuit on the leafy pressure delivery outlet, sound-absorbing material similar to resistance. Therefore, people put this muffler called resistive muffler. 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 a stairway and front door of pressure delivery outlet size, 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 proportion of the flow of open layers can 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. Sheng clean air conditioning (Figure) | leafy pressure delivery outlet | Jiaozuo 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.