Positive pressure blower is pointing escape corridor air blower. 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 line of sight, through positive pressure blower air to escape the fire stairs, indoor smoke can not reach the stairs, to create the conditions for people to escape. Positive pressure blower is pointing escape corridor air blower. 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 line of sight Francis fan, through positive pressure blower to supply air to escape the fire stairs, indoor smoke can not reach the stairs, to create the conditions for people to escape. Positive pressure blower usually installed on top of buildings, and the layers of the positive pressure valve linkage. Initial fire damper is open, start positive pressure blower Francis fan installation, make stairwells, elevator hall in positive pressure (air condition). General air shaft in the building layers set blinds, window air do with the different layers of the open air shaft, set the single-double, to ensure pressure; or outlet pressure Shandong Francis fan, sometimes with manual and remote control device can control the air volume. SWF Francis fan application meridional acceleration method and the "quasi-ternary" flow theory design, with straight outer cylinder, cone wheel, twisted wing blade structural forms. Pressure compared with the same machine number of high axial fans, air volume compared with the same machine number large centrifugal fan. With high efficiency, compact structure, low noise, small size, easy installation, etc., widely used in hotels, restaurants, shopping malls, office buildings, stadiums and other senior civil pass exhaust pipe pressurized air supply and ventilation change mining industry gas sites. Two-speed fan which can be adjusted required amount of wind, air pressure according to the conditions required by the use of variable speed. One, SWF series of positive pressure blower Overview SWF series of positive pressure blower machine has the same number of relatively large amount of wind centrifugal fans, axial flow relatively high pressure fans, and other characteristics can be axially mounted; low noise, low power consumption, efficient wide area, installation convenient to use than the centrifugal fan, reliable operation. Two, SWF series of positive pressure blower features: 1, compact, easy to install, reliable operation; the axial flow fan or centrifugal than small in the case of the same amount of wind, air pressure, and directly connected to the production and Francis fan duct manufacturers, horizontal or vertical installation, operation and convenient features. 2, low noise: positive pressure blower housing is specially designed to greatly reduce the outflow of noise. Under the unit amount of wind, air pressure unit working conditions, than A sound level can be reduced 2-3dB (A), while in the case of low speed, get a higher fan pressure. Francis fan installation, Francis fan, air conditioning provided by the Texas Watson Watson air-conditioning plant. Texas Watson air-conditioning plant (www.wchuaxin.com) (www.wchuaxin.com) strong, credible, Shandong Texas heat, refrigeration and air conditioning equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Watson air conditioning and you hand into the brilliant, for a better future! You can also access (www.wchuaxin.com/supply_details_46597505.html), for more information about the company.