Supply Henan (Pingdingshan) Xingrui HTF-II fire smoke exhaust fan manufacturer

Supplying Henan (Pingdingshan) Xingrui - Fire Smoke Exhaust Fan Manufacturer - Fire Smoke Exhaust Fan Implementation Standard/-, here is a brief introduction to the main technical requirements stipulated in the standard. The standard is applicable when the medium temperature is not greater than ℃ and the dust content is not greater than / 3. Fire smoke exhaust axial flow fan. . Under the rated speed and flow rate, the total pressure efficiency of the ventilator should not be less than, and the total pressure deviation of the ventilator should not exceed ± of the rated value. The specific sound pressure level of the ventilator under rated operating conditions is not greater than . (For the relationship between sound level and specific sound level, please refer to relevant standards). The dynamic balance accuracy of the fan impeller shall not be greater than . , The vibration accuracy (root mean square speed) of the ventilator should not be greater than .3㎜/. When the ventilator is used at a temperature of ℃, the normal and safe operation should be not less than 3. It must be run every month for 3 and check the anti-rust quality. -Materials of the main components of the fire smoke exhaust fan: The fan is mainly composed of a motor, a casing, an impeller, etc. The motor uses high-temperature resistant electromagnetic wire and a motor with grade insulation. The casing: is made of 3 cold-rolled steel plates and is formed by mechanical processing. , the outer surface is treated with rust removal and anti-corrosion, and sprayed with fire-fighting paint. Impeller: Made of 3-material cold-rolled steel plate, stamped and formed by die. Each impeller is subjected to dynamic and static balance tests and overspeed tests after being formed. -Installation and maintenance of fire smoke exhaust fans: Before installation, the fan must be checked in detail to see if it is damaged or deformed, or the connections are loose. The ventilator should use an air-cooling device in the design. The temperature of the motor shell should not exceed ℃. The motor should use high-temperature resistant electromagnetic Wires and related high-temperature-resistant materials must reach the highest level of insulation. In the type inspection, in addition to measuring the aerodynamic performance of the ventilator according to the standard, a high-temperature resistance test should also be conducted. , The ventilator is stored for a long time or is not used frequently after installation. Problems such as collision between the impeller and the air duct. If the above problems are found, they must be repaired before installation. When installing, pay attention to the rotation direction of the impeller and the air flow direction mark. The fan is not allowed to run in the opposite direction (reverse rotation). The fan base must be naturally integrated with the foundation surface, and it is not allowed to knock the base to force the connection. When the fan needs to be hoisted forward and horizontally (the fan base is at the bottom), the load-bearing surface must be the bottom plane of the fan. The fan is connected to three-phase 3 voltage and power supply. Contact information. The pipes connected to the air inlet and outlet of the fan should not be supported by the fan duct and should be additionally supported. After installation, be sure to check inside the fan and pipes. There should be no debris or tools that have fallen in or been left behind. The fan needs to be put into trial operation for ~3 minutes, and it can only be used officially after it is confirmed that the fan is operating normally.