Suction fan exhaust air out the room pressure drop, indoor air thinned farming fans, forming a negative pressure zone, air flows into the interior of compensation due to the pressure difference. In practical applications, industrial plants, centralized suction fan installed in the plant side air intakes in the plant room on the other side, the air intake by mouth suction fan convection hair. In this process, the suction fan near the doors remain closed aquaculture fan, forced air flow into the air inlet side by the workshop doors compensation. 1, the installation as a whole unit of centrifugal fan, should be placed directly on the basis of leveling with a pair of oblique horn. 2, centrifugal fan site assembly and machining surface on the base should be properly protected, there should be rust or farming operations fiberglass fan, when the base is placed on the basis of farming fan manufacturers, application paired oblique horn leveling. 3, the bearing should be in close contact with the base, vertical not horizontal should not exceed 0.2 / 1000, measured with a spirit level on the spindle horizontal bottom level should not exceed 0.3 / 1000, at the level of the equatorial plane bearing the standard instrument measurement. 4, bearing scrape preceded the rotor axis and the axis of the housing correction, while adjusting the gap and the gap between the rear side of the shaft hole impeller shaft and housing between the air inlet to meet the equipment and technology specified file. 5, when the shaft and bearing assembly, equipment and technology should be required documents to be checked. Should be maintained between 0.03 to 0.04 mm in the bearing cap and bearing interference (measure the outside diameter of the bearing and the bearing inner diameter). Livestock fan, Qingzhou Minhua temperature control equipment, Dongying fan culture provided by Chinese citizens Qingzhou temperature control equipment plant. Temperature Control Equipment Factory Qingzhou public Hua (www.minhuawenkong.com) is an industry leader in Shandong Weifang, 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. 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.