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The structure and operation process of the fan

Views: 6     Author: jason     Publish Time: 2023-04-03      Origin: www.belmont-tech.com

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The structure and operation process of the fan

Fans are a common type of fluid machinery used to transport, ventilate, pressurize or discharge gases or vapors. The following is a detailed description of the structure and operating process of fans:


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First, the structure of the fan

The fan is mainly composed of the following parts:

Impeller: It is the main part of the fan, consisting of blades, wheel disc and hub, etc.. It can rotate and transport the gas or steam to the blades by inhaling it, and then push it to the fan's outlet.

Housing: The part that surrounds the impeller and serves to contain the gas and steam and reduce air leakage.

Inlet and Outlet: The inlet is usually located at the front of the fan and is where the gas or steam is drawn in. The outlet is usually located at the side or rear of the fan and is where the gas or steam is discharged.

Driving device: Equipment used to drive the impeller, including electric motors, internal combustion engines, or steam engines.

Other auxiliary equipment: such as brackets, bases, bearings, seals, etc.

 

Second, the operation process of the fan

When the fan starts, the driving device will turn the impeller. When the impeller rotates, the gas or steam will be sucked into the center of the impeller and pushed to the outlet of the fan through the blades. In this way, the fan transports the gas or steam to where it is needed.

 

The operating speed of the fan depends on the speed of the drive unit. Increasing the speed increases the conveying capacity of the fan, but it also increases energy consumption and noise. Therefore, when selecting a fan, the flow and pressure of the gas or steam to be conveyed, as well as the required energy consumption and noise level, need to be considered.

Fans also have a number of common applications, including

Ventilation: Used to move air out of a room or building and keep the air inside fresh.

Smoke exhaust: Used to exhaust exhaust gases or fumes out of a building or factory to maintain air quality.

Air conditioning: Used to regulate indoor temperature and humidity to improve people's comfort.

Industrial use: Used to transport gas or steam to industrial processes such as power plants, refineries and chemical plants.




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