1. The principle of negative pressure suction fan through the indoor heat, gas, dust forcibly excluded outdoor, speed up the flow of air. Air flow away body heat, air flow to accelerate the evaporation of sweat absorbs body heat, thus allowing the body to feel cool, like two pairs of natural wind; second negative pressure ventilation fan to cool: Because sunlight buildings, machinery and equipment, the human body and other heat sources resulting in the need ventilated place higher than the outdoor temperature. Suction fan can make indoor heat quickly rule out the indoor temperature and the outside temperature was flat, not workshop temperature inside ventilation suction fan design principle from the principle of speaking, is the use of air suction fan convection, Wuhu suction fan wet curtain, to design principle of negative pressure ventilation. When the suction fan is installed in places with poor ventilation, work, use of mechanical kinetic energy fan operation, the plant stagnant heat, odor, black smoke in the shortest period of time quickly exhausted to the outside, Chengdu breeding suction fan, while the fresh outdoor air and indoor cycling exchange, so as to improve the workshop environment ventilation and cooling purposes. Workshop hot, hot, smoke, dust, odor of gas all discharged outside, see also the exhaust fan suction fan! Suction fan to the application of: 1 fan with wet curtain use: suction fan wet curtain used as a workshop with cooling. Wet curtain - suction fan systems can reduce the room temperature, Shanxi Wanrong suction fan, and maintain a certain humidity; 2 suction fan for fan use: general exhaust fan efficacy is rather poor, an exhaust fan not blowing. Several people, suction fan, suction fan is not the case, whether you put that height, 1,000 square meters of workshop 4 can make the entire plant to achieve the effect of the wind suction fan Xinzhou curtain, Qingzhou China and China Thermostat equipment (certified), suction fan is provided by the public, China Qingzhou temperature control equipment factory. China Qingzhou temperature control equipment factory citizens (www.minhuawenkong.com) (www.minhuawenkong.com) (www.minhuawenkong.com123) is an industry leader in Shandong Weifang, fans, ventilation equipment, over the years, the company implementing the scientific management, innovation development, the principle of honesty and trustworthiness, and satisfy customer needs. Qingzhou temperature control equipment in China and China leading the staff warmly welcome all inquiries negotiations, China and China Qingzhou temperature control equipment to create a better future.