Product overview

SDF series axial-flow fan (fan) is a kind of high-efficiency, low-noise, long-range axial-flow fan (fan), including impeller, motor, motor leg, air duct, inlet collector, outlet collector.

This series of fans is compact in structure. It adopts high-efficiency impeller and inlet collector to realize the efficient operation of impeller. On the air duct of rotating impeller, there is a window to scatter the rotating noise (wind noise) of airflow, so as to avoid the accumulation and accumulation of noise in the air duct. Moreover, due to the high wind speed and negative pressure in the air duct, the air near the through-hole is sucked into the air duct, which further increases the wind Machine efficiency. At the same time, the outlet collector is introduced, aiming at the characteristics of high wind speed in the outer ring of axial-flow fan or fan impeller, the high-speed rotating air flow in the outer ring of the axial-flow fan is concentrated to the inner ring, thus improving the rotating airflow diffused to the outer ring after the outlet of the axial-flow fan, which makes the airflow difficult to scatter, and the static pressure efficiency is significantly improved, and the air volume is concentrated and the scattering is small The range of airflow increases obviously, and the central wind speed can be increased more than 3 times when the distance is more than 1.5m from the outlet. It is especially suitable for various applications requiring high wind speed cooling.

Installation, adjustment and commissioning

Before installation, carefully check whether all parts of the fan are complete and in good condition; whether the impeller, air duct or casing are damaged or deformed due to transportation; whether the parts are connected tightly; if any problem is found, timely repair and adjustment can be carried out before installation and use.

The direction of the fan should be the same as the direction of the fan and the direction of the fan impeller.

The foundation or hanger for installing the fan shall have sufficient strength, stability and durability.

After the fan is installed, check whether the impeller rotation is flexible; whether there are abnormal sounds such as collision and friction; whether there are impurities in the fan to avoid damaging the impeller when entering the fan during commissioning; check the lubrication of the motor to ensure that the fan can start up and operate normally at any time.

The installation personnel are responsible for the safe and reliable installation of the fan and ensure that the operation of the fan will not cause personal injury. In the process of installation, special attention should be paid to the installation reliability of fasteners, safety protection accessories, etc.

When installing the fan, the user should reserve enough space to facilitate the daily inspection and maintenance of the fan, the disassembly of the fan and the replacement of the parts.

Safety rules: the selection, connection and grounding of power line of wind power must be consistent with the technical specifications of design requirements. And connect according to the wiring diagram on the junction box or attached with the machine.

Product parameters

Product outline drawing and dimension

 Typical installation diagram of product

Operation, maintenance and inspection

Regularly check whether the current, voltage and power of the motor in normal operation exceed its rated value.

Regularly check whether the electrical circuit and instrument are correct, whether there is aging or other damage;

When the fan (fan) is in normal operation, regularly check whether the bearing temperature is normal, the bearing temperature rise shall not be more than 40 ℃, and the surface temperature shall not be more than 85 ℃. If it is found that the fan has severe vibration, impact, bearing temperature rising rapidly and other abnormal phenomena, emergency shutdown must be carried out to eliminate it.

Regularly check whether the installation foundation and other fasteners of the fan (fan) are firm and reliable;

Clean the dust, dirt and debris on the fan regularly.

Comparison of product characteristics between SDF axial fan and ordinary axial fan