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Anonymous users2024-02-07Axial fans and centrifugal fans are two different products in the fan category, and their main function is also to ventilate the air in the environment.
First, the exhaust direction is different
The exhaust direction of the axial fan is straight along the axis, the air inlet and outlet of the fan are on parallel axes, and the exhaust direction of the centrifugal fan is perpendicular to the air inlet, which can achieve 360 degree exhaust in the specified direction.
Second, the difficulty of installation is different:
The installation of axial fans is relatively simple, generally directly installed on the wall or connected to the air duct. The centrifugal fan is complex to install.
3. The difference between air volume and wind pressure:
The air volume and air pressure of the axial fan are relatively small, and there is basically no air pressure, while the air volume and air pressure of the centrifugal fan are relatively large. If there are many pipe elbows, the exhaust distance and the air supply distance are relatively long, and the pipeline resistance is large, it is necessary to use a centrifugal fan.
Fourth, the appearance and shape are different:
The shape of the axial fan is basically cylindrical, and the shape of the centrifugal fan is sneety.
Fifth, the connection of the fan motor is different:
The motor connection of the axial fan is usually in the body of the fan, and the motor of the centrifugal fan is connected through the shaft, usually outside the exhaust duct of the fan.
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Anonymous users2024-02-06The difference between an axial fan and a centrifugal fan is:
1. The centrifugal fan changes the flow direction of the medium in the air duct, while the axial fan does not change the flow direction of the medium in the air duct; 2. The former has a large air volume and wind pressure, while the latter has a very low air volume and wind pressure; 3. The former is more complicated to install, and the latter is simpler to install;
4. The former motor and the fan are generally connected through the shaft, and the latter motor is generally in the fan;
5. The former is often installed at the inlet and outlet of the air conditioning unit, boiler drums, induced draft fans, etc., and the latter is often installed in the air duct or at the front end of the air duct outlet.
Introduction: Axial fan is very widely used, that is, the airflow in the same direction as the shaft of the fan blade, such as electric fan, and the fan of the air conditioner is the axial flow mode of running the fan. It is called "axial" because the gas flows parallel to the fan axis.
Axial fans are typically used where the flow requirements are high and the pressure requirements are low. Axial fans hold the position and move the air. The axial fan is mainly composed of a fan impeller and a casing, which has a simple structure but very high data requirements.
Centrifugal fan is a machine that relies on the input mechanical energy to increase the gas pressure and discharge the gas, and it is a driven fluid machine. Centrifugal fans are widely used for ventilation, dust removal and cooling in factories, mines, tunnels, cooling towers, vehicles, ships and buildings; ventilation and induced air for boilers and industrial furnaces; cooling and ventilation in air-conditioning equipment and household appliances; drying and selection of grains; Wind tunnel wind source and hovercraft inflation and propulsion, etc.
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Anonymous users2024-02-05Axial fans and centrifugal fans are two different products in the fan category, and their main function is to ventilate the air in the environment.
The difference between an axial fan and a centrifugal fan.
Clause. First, the exhaust direction is different:
The exhaust direction of the axial fan is straight along the direction of the shaft, the air inlet and the exhaust outlet of the fan are on a parallel line of the axis, and the exhaust direction of the centrifugal fan is perpendicular to the direction of the air inlet, which can achieve 360 degrees of exhaust in the specified direction.
Clause. Second, the degree of difficulty of installation is different
The installation of axial fans is relatively simple, generally directly installed on the wall or connected to the air duct. The installation of centrifugal fans is more complicated.
Clause. Third, the difference between air volume and wind pressure
The air volume and wind pressure of the axial fan are relatively small, basically there is no wind pressure, and the air volume and wind pressure of the centrifugal fan are relatively large, if there are many pipe elbows, the extraction distance and the air supply distance are relatively far, and the pipeline resistance is large, the centrifugal fan must be used.
Clause. Fourth, the appearance and shape are different:
The appearance of the axial fan is basically cylindrical, and the appearance of the centrifugal fan is snail-shaped.
Clause. Fifth, the motor connection method of the fan is different:
The motor connection of the axial fan is generally in the body of the fan, and the motor of the centrifugal fan is connected by the shaft, which is generally placed outside the exhaust cylinder of the fan.
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Anonymous users2024-02-04First, the nature is different.
1. Centrifugal fan nature: It is a machine that relies on the input mechanical energy to increase the gas pressure and discharge the gas, which is a driven fluid machinery.
2. Axial fan nature: the airflow in the same direction as the axis of the fan blade, such as electric fan, air conditioning fan is the axial flow mode of the fan.
Second, the working principle is different.
1. The working principle of the centrifugal fan: according to the principle of converting kinetic energy into potential energy, the gas is accelerated by a high-speed rotating impeller, and then decelerates and changes the flow direction to convert kinetic energy into potential energy (pressure). In a single-stage centrifugal fan, the gas enters the impeller axially, changes radially as it flows through the impeller, and then enters the diffuser.
In a diffuser, the gas changes the direction of flow, and the increase in the cross-sectional area of the pipe slows down the flow of the gas, thus converting kinetic energy into pressure energy. The increase in pressure occurs mainly within the impeller, followed by the expansion process. In a multistage centrifugal fan, the air flow passes through the return device to the next impeller, creating a higher pressure.
2. The working principle of the axial fan: when the impeller rotates, the gas enters the impeller axially from the air inlet, and is pushed through the blades on the impeller to increase the energy of the gas, and then flows into the guide vanes. The guide vanes convert the deflected gas into axial flow while directing the gas into the diffuser, which further converts the kinetic energy of the gas into pressure energy and finally introduces the gas into the working pipe.
Axial wind turbine blades work in a similar way to the wings of an aircraft. However, the latter exerts lift on the wings and supports the weight of the aircraft, while axial fans hold the position and move the air.
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Anonymous users2024-02-031. Axial fan: It is a machine that transports airflow in the same direction as the shaft of the fan blade.
2. Centrifugal fan: It is a machine that relies on the input mechanical energy to increase the gas pressure and discharge the gas.
Differences: 1. Different characteristics:
1. Axial fan:
The axial fan does not change the flow direction of the medium in the air duct, and is used for local ventilation, which is easy to install and has obvious ventilation effect.
2. Centrifugal fan:
The centrifugal fan changes the flow direction of the medium in the air duct, the gas flow rate is low, the pressure changes little, and the change of gas specific volume is generally not considered, that is, the gas is treated as an incompressible fluid.
Second, the use is different:
1. Axial fan:
In general, ventilation in factories, warehouses, offices, residences and other places can also be used for air coolers (air coolers), evaporators, condensers, and spray drops.
2. Centrifugal fan:
It is widely used in steel smelting, thermal power generation, new dry cement, petrochemical industry, sewage treatment, waste heat, gas and nuclear power.
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