The high-pressure axial flow fan is a fan with a wind pressure of 30kPa~200KPa or a compression ratio e=1.3~3 under design conditions.
Different from general centrifugal high-pressure blowers. According to the direction of gas flow, fans can be divided into centrifugal, axial, oblique and cross-flow types.
When the centrifugal fan is working, the power machine (mainly an electric motor) drives the impeller to rotate in the volute casing, and air is sucked in from the center of the impeller through the suction port. Due to the dynamic effect of the blades on the gas, the pressure and speed of the gas are increased, and it is thrown towards the casing along the blade path under the action of centrifugal force, and is discharged from the exhaust port. Because the flow of gas in the impeller is mainly in the radial plane, it is also called a radial fan.
Extended information
Generally, high-pressure fans have the following characteristics:
1. It has dual functions of blowing and suction, and can be used as a suction blower. , you can also use a blower;
2. It operates with little or no oil, and the output air is clean;
3. Compared with centrifugal fans and medium-pressure fans, its The pressure is much higher, often more than ten times that of a centrifugal fan;
4. If the pump body is integrally die-cast and uses a shock-proof installation foot, then its requirements for the installation foundation are also very low. It can even operate normally without a fixed foot, which is very convenient and saves installation costs and installation cycles;
5. Compared with similar fans, its operating noise is lower, and an ultra-quiet high-pressure fan is launched Fan:
6. Maintenance-free use; its loss parts are only two bearings, which basically require no maintenance during the warranty period;
7. Mechanical of the high-pressure fan The wear is very small, because there are no other mechanical contact parts except the bearings, so the service life is of course very long. As long as it is under normal use conditions, 3 to 5 years is no problem at all.