Two, SWF series mixed flow fan characteristics??? Centrifugal fan can be made of the right-handed and left-handed two types. Elevation from the motor side, clockwise rotation of the impeller fan coil, called the right rotary blower, counter-clockwise rotation, called L Working Principle? centrifugal fan is based on the principle of potential energy is converted to kinetic energy, the use of high-speed rotation of the impeller the gas to accelerate and then decelerate, change the flow of the kinetic energy into potential energy (pressure). In the single-stage centrifugal fan, the gas enters the impeller in the axial direction, changing the gas flow through a radial impeller, and then into the diffuser. In the diffuser, the gas flow direction changes cause deceleration that the deceleration effect the kinetic energy is converted into pressure energy. Pressure increased mainly in impeller, diffuser happens next in the process. In the multi-stage centrifugal fan, the reflux stream allows the impeller to the next, resulting in a higher pressure. Features Strong technical force, advanced production equipment, detection means perfect, it has its own fan, HVAC accessories professional production workshop and damper, smoke damper actuators professional production lines and a professional equipment 120 (sets) xgf exhaust fan, professional and technical staff of 36 people, the annual output value of over ten million yuan. The company for 10 years Bei industry and commerce administration departments as 'contract and keeping promises units', 'a member of fire protection products', 'AAA credit enterprises' and so on, and passed the ISO9001: 2000 quality system certification. Company products are: fire damper, smoke damper actuators, temperature sensors, high-temperature exhaust axial fan, Francis fan, ramps flow fan, tunnel fans, induced fan, a variety of national standard centrifugal fan, axial fans , HVAC central air conditioners, fan coil air conditioners, air-conditioned terminal aluminum outlet, valves, large factories, power plants and high-strength aluminum alloy rare manual, electric rain blinds and other products sold throughout the country, enjoy a high reputation. Wherein the actuator, damper, smoke fire damper, high-temperature exhaust axial fans has adopted a national fixed fire extinguishing systems and fire-resistant component of Quality Supervision and Inspection Center, and online access to test results the company has always been implementing the 'quality first, the user oriented, customer-centric, continues to improve, 'the purpose, pay close attention to internal management, improve product quality. Company chairman and managing Fangchun Tang sincerely welcome friends and experts to visit and seek common development. Under normal circumstances, we fire temperature exhaust fan, be sure to set the high-rise building fire elevator according to specification, which should be before we know the fire elevator room supply exhaust fan, also known as the elevator hall, if it is and stairs between the combination of words, then called shared room, you know this is the front room when the fire evacuation experience provides a temporary buffer space, by the fire partially into the stairs to evacuate between excessive exhaust fan, so row Smoke fan, such a space requires a certain degree of air flow. In addition we should be most aware of is that so-called positive pressure air jgf exhaust fan, it is to use machines to the outside in the fresh air is piped into the ventilation requirements of this site, this is called positive pressure air. Only after more than learn the basics before we can complete the entire specification leafy pressure delivery outlet installation. Kaifeng exhaust fan, exhaust fan manufacturers, kitchen exhaust fan by fan air-conditioning Equipment Co., Ltd. Shandong GREAT. Kaifeng exhaust fan, exhaust fan manufacturers, kitchen exhaust fan is a fan of Shandong GREAT Air Conditioning Equipment Co. (www.greatfengji.com) this year introduced a new upgrade, the above picture is for reference only, please call this page or Tel picture on to obtain the latest information, contact: Li.