Centrifugal fans transmission parts wear are equipment problems often arise suction fan, including the blower bearings bit worn bearing chamber, blower shaft bearings bit wear. Centrifugal fans for the failure factories suction fan, traditional repair methods welding, thermal spraying, brush crossing, etc., but have certain drawbacks: high temperature welding thermal stress generated can not be completely eliminated, could easily lead to material damage, resulting in part appears bent or broken; and electric brush by coating thickness restrictions, easy to peel off, and the above two methods are used to repair metal metal, can not change the "hard on hard" with the relationship, under the combined effect of the various forces, still cause Wear rubber roller bag again. An emergency stop: suction fan series during the unit test run, when any of the following circumstances, emergency stop immediately. Pressing the emergency stop operation is the main motor stop button, and then the rehabilitation work after shutdown. a, centrifugal fan sudden strong vibration, and has more than a trip value. b, the body's internal friction touch scratch or unusual sounds. c, either bearings or seals phenomenon occurs smoke suction fan maintenance, or a sharp increase in bearing temperature alarm value. d, oil pressure falls below the alarm value and can not be restored normal. e, tank level is low, there are cavitation phenomenon. f, shaft displacement values ??significant continued growth, reaching alarm value. Square suction fan | Lianyungang suction fan | Minhua Qingzhou Qingzhou temperature control equipment supplied by Chinese citizens thermostat plant. Temperature Control Equipment Factory Qingzhou public Hua (www.minhuawenkong.com) (http://www.minhuawenkong.com) (http: //www.minhuawenkong.com123) strong, credible, fans in Shandong Weifang, ventilation equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead China and China Qingzhou temperature control equipment and you hand into the brilliant, for a better future!