The overall structure of the axial flow fan must meet the specifications for manufacturing. The overall structure must be robust, with tight welds, and the body free from defects such as deformation, cracks, and burrs. The impeller blade angles must be uniform, the surface smooth and even, and the assembly gaps uniform. Rotation should be smooth and free from jamming or wobbling, ensuring stable operation. Metal components such as the fan casing and support frame must undergo rust removal and anti-corrosion painting treatment. The paint should be even, full, and firmly adhered, preventing peeling, flaking, and rust. Fans used in special operating conditions must strictly adhere to design requirements, using stainless steel or fiberglass anti-corrosion materials to ensure the equipment is suitable for the site environment and possesses good structural stability and weather resistance.
The electrical performance and operating parameters of the fan must comply with design and national standards. Factory parameters, rated air volume, air pressure, speed, and power must match the project's ventilation design requirements. Incompatible equipment must not be used. The motor must have good insulation performance, neat and standardized wiring, complete and reliable grounding devices, and meet insulation resistance standards, effectively preventing electrical hazards such as leakage and short circuits. During operation, noise and vibration must be controlled within standard ranges. Long-term continuous operation should be free of abnormal noises, overheating, and vibration. Output should be stable with no significant decrease in airflow or pressure, meeting the requirements for long-term ventilation operations.
Fan installation and testing must strictly adhere to construction technical specifications. Installation dimensions, levelness, and verticality must meet installation standards. Fixing bolts must be securely tightened, vibration damping and sealing components must be complete and effective, and pipe connections must be airtight. After installation, no-load and load tests must be conducted to check impeller rotation direction, operational stability, and electrical safety. The equipment can only be officially put into use after a trouble-free trial run and all parameters have passed testing. Furthermore, the equipment must possess good versatility and maintainability, with a structure that facilitates future maintenance, cleaning, and parts replacement. Parts specifications must be standardized to meet the technical requirements for daily operation and maintenance.