Tianhong F9-19-4A direct coupled high-pressure centrifugal fan

The Tianhong F9-19-4A direct coupled high-pressure centrifugal fan adopts a direct connection method, which reduces energy loss during the transmission process. Therefore, the direct coupled high-pressure centrifugal fan has high working efficiency. Due to its simple structure, it reduces the possibility of faults and adjustments, and once a fault occurs, it is usually easier to diagnose and solve. Meanwhile, due to the absence of vulnerable parts such as belts, the workload of regular inspections and replacements has been reduced.

　　Tianhong F9-19-4A direct coupled high-pressure centrifugal fanIt is a special type of high-pressure centrifugal fan that uses a direct connection between the electric motor and the centrifugal fan rotor, without a transmission device in between.

　　Tianhong F9-19-4A direct coupled high-pressure centrifugal fanThrough multiple research and development designs, the goal of corrosion resistance, energy conservation, and noise reduction has been further achieved. It has the advantages of high efficiency, low A-level, wide high-efficiency zone, compact structure, and reliable operation. Widely used in forging furnaces and high-pressure forced ventilation, it can also be used for conveying corrosive gases, conveying air, and other functions.

Working Principle:

The working principle of a direct coupled high-pressure centrifugal fan is based on the action of centrifugal force. When the motor drives the impeller to rotate at high speed, the airflow is drawn into the central area of the impeller and accelerated and thrown towards the edge of the impeller under the action of centrifugal force. As the airflow velocity increases, its kinetic energy also increases accordingly, thereby increasing the pressure of the gas. The high-speed flowing gas gradually decelerates inside the volute shaped casing, and its kinetic energy is further converted into pressure energy, ultimately being discharged from the outlet at a higher pressure.

Mainly composed of impeller, casing, air inlet, bracket, etc.:

Impeller: There are 12 blades for the 9-19 type fan and 16 blades for the 9-26 type fan. All belong to the forward curved blade type. The peripheral speed of the impeller diffuser does not exceed 140m/s. After the impeller is formed, it undergoes static and dynamic balance correction, so it runs in balance.

Shell: Made of FRP fiberglass snail shell as a whole.

Air inlet: Made into a convergent streamlined overall structure, fixed to the front cover plate group with bolts.

Transmission group: composed of main shaft, bearing box, coupling, etc. The spindle is made of high-quality steel, and the bearing box has an overall structure using rolling bearings.