Adjustable exhaust fan fire, is to let the wind pressure or wind turbines reach a standard artificially control the fan. Through effective regulation, allowing high pressure air blower in ensuring the stable operation of the conditions necessary to meet the production requirements of the flow or pressure can maximize energy savings. Although the user will use a different adjustment method, but to achieve the goal is the same, but the effect is there is some difference. Select the adjustment method is not only related to the use of exhaust fan fire effects, and more fan energy savings will have a huge impact vertical exhaust fan, so I chose an appropriate way to keep fans in regulating the premise of achieving the same effect energy-saving effect. The only way to improve the efficiency of the fan, to energy efficient, but also to better protect the fans, to extend efficiency. Prominent feature fire exhaust fan performance is such that its effect is that these energy-efficient, we must be based on the above instructions for proper operation, to obtain better results. Fire exhaust fan set Location: Distance tunnel fire exhaust fan should not be too close to the side wall of the high-temperature exhaust fan fire, so as not to affect the ventilation exhaust fan fire arranged a minimum distance from the tunnel wall is 20 cm, rescue "sentinel" of. Set the tunnel is divided into different regions Disaster exhaust fan, make full use of deviated and both ends of the tunnel exhaust fan fire rescue station designated as the wind and smoke into the new channel, cross ventilation openings must maintain positive pressure state exhaust fan theory, prevent the flue gas flow channel. ventilation air from the direction of the incident tunnel through a secure tunnel to cross the channel, inhibiting the flue gas into a cross-channel and tunnel accident did not occur to meet the evacuees facing the new air into the transverse channel and within a secure tunnel, waiting area while ensuring the required fresh air tunnel according to different regions use different incidents of disaster prevention and Ventilation. "sentinel" Disaster ventilation scheme implemented sentinel relief when the train, in the "fixed" range all cross-channel contact settings can be reversed to obtain fresh wind from the fan inside the secure tunnel. GYF type exhaust fan, Chen Yu-conditioned factory outlets (certified), Heze City exhaust fan by Wu Chen Yu Air Conditioning Equipment Co., Ltd. available. Wu Cheng Chen Yu Air Conditioning Equipment Co., Ltd. (www.wccykt.com) is a leader in Dezhou, fans, ventilation equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs . Chen Yu-conditioning in leadership with the staff warmly welcome all inquiries negotiations to create Chenyu conditioning a better future.