Liaocheng Flextronics ventilation equipment specializing in the production and operation without power fan and non-powered natural ventilation and so on. Description No power ventilation is running Cause "buzzing" sound now without power ventilation noise reasons sum up, mainly in the following six points: A: No power roof ventilators poorly installed roof ventilator should be installed in suspension It can not be crushed by the spring foot bolts. Two: No power roof ventilators installed in contact with the window frame is too tight, so as to cause the operation sash resonance roof ventilator. Three: No power roof ventilation seat vibration absorption pads or fixed tighten the screws, lose vibration absorption effect, the resulting sound vibrations at work. Four: seat screws loose, bad impeller assembly, excessive speed, shaft mounting screws loosening Workaround: The roof ventilator fan base, shaft screws. Reassemble according to the technical requirements and adjust impeller clearance. Five: Blade wind collision housing (cover). Six: bad motor bearings, axial fan base screws loose, fan shaft is not fixed tight to the top of the hood body blade gap is too small. Liaocheng Flextronics ventilation equipment specializing in the production and operation without power fan and non-powered natural ventilation and so on. Through axial fan power required means the specific conditions, plus the mechanical losses due in terms of the safety factor. To avoid motor overload burned, the boiler house roof ventilators, axial fans during start-up and commissioning, Wuxi roof ventilators, must stop at no load conditions. As good condition, no power roof ventilators, gradually open the gate to reach the rule conditions so far during operation should strictly control the current, shall not exceed the motor rating. When the axial fan starts, streamlined roof ventilators, reaching normal operating speed, during operation, always check whether the normal bearing temperature, bearing temperature must not exceed the ambient temperature around 40 ℃, the root mean square value of vibration velocity bearing parts can not greater than 6.3mm / s. Such as found in axial fans have violent vibration, shock, rapid increase in bearing temperature anomalies, etc., required emergency stop. Liaocheng Flextronics ventilation equipment specializing in the production and operation without power fan and non-powered natural ventilation and so on. Description No power ventilation is running Cause "buzzing" sound now without power ventilation noise reasons sum up, mainly in the following six points: A: No power roof ventilators poorly installed roof ventilator should be installed in suspension It can not be crushed by the spring foot bolts. Two: No power roof ventilators installed in contact with the window frame is too tight, so as to cause the operation sash resonance roof ventilator. Three: No power roof ventilation seat vibration absorption pads or fixed tighten the screws, lose vibration absorption effect, the resulting sound vibrations at work. Four: seat screws loose, bad impeller assembly, excessive speed, shaft mounting screws loosening Workaround: The roof ventilator fan base, shaft screws. Reassemble according to the technical requirements and adjust impeller clearance. Five: Blade wind collision housing (cover). Six: bad motor bearings, axial fan base screws loose, fan shaft is not fixed tight to the top of the hood body blade gap is too small. Wuxi roof ventilators, Flextronics ventilation, roof ventilators manufacturer Flextronics by the Liaocheng ventilation equipment Limited. Wuxi roof ventilators, Flextronics ventilation, roof ventilators manufacturer Flextronics Liaocheng ventilation Limited (www.lcwctf.com) (www.lcwctf.com) this year introduced a new upgrade, the above picture is for reference only, please You call Tel picture on this page or to obtain the latest information, contact: Du Jingli.