Will the dust accumulated on the fan blades return to the air as the fan rotates?

There will be a part, very little, the fan rotates, driving the air flow, forming the wind, and the dust in the air will pass through the fan blades, plus the friction between the air and the fan blades, generating static electricity, which is easier to make the dust attached.

As the fan rotates, it returns to the air again, so if you find that the fan blades are full of dust, you must wash it clean.

It will definitely spin all the dust back into the air or a corner of the room.

Electric fans tend to have some dust on the blades after being used for a while. The reason for this phenomenon is that when objects composed of different substances rub against each other, they attract small and light objects, and this phenomenon is triboelectric induction.

The moisture and dust in the air will condense after coming into contact with the fan blades, and the dust particles will be adsorbed on the surface of the damp fan blades, and those that cannot be adsorbed on the surface of the fan blades will be blown over. The blades of the fan rub against the air during rotation, so dust adheres to the blades.

In addition, "when the electric fan is in use, the fan blades rotate at high speed and rub against the air, so that the fan blades carry static electricity due to friction electricity" has the property of "adsorbing light objects". Because when the electric fan is in use, the fan blades rotate at high speed and rub against the air, so that the fan blades are electrostatic due to the friction electricity, thereby absorbing light objects (i.e. dust) in the air.

After a long time, a lot of dust will adhere to the fan blades, and the farther the fan blades rotate on the shaft, the more dust there is, because the farther away from the rotation shaft, the greater the linear velocity of the fan blades and the greater the friction with the air. The more static electricity is generated by rubbing the air. In particular, the plastic fan blades are more noticeable.

It will absorb a lot of dust.

The main reason is that the electric fan rubs against some dust in the air when it is running at high speed, resulting in some attraction between each other, so there is often dust on it.

In fact, this is a principle in which a charged body attracts small and light objects. Since the blades of the electric fan often run at high speeds, the wind will attract some tiny objects, and over time it will fall into dust.

The friction between the blades of the electric fan and the air will produce static electricity, which will absorb particles in the air.

1) Common sense and simple logic -

Dust adds to the mass of the fan, and no matter how small, it still increases. Imagine sticking a heavy object to a fan blade. Will they spin at the same speed as before? As a result, the added weight slows down the fan.

2) The physics behind it (skip if you don't like science :p) - Actually, it's a follow-up to the previous point, why the speed returns to the forest when you put the weight on it. Of course, we see common sense, but why?

We all know this famous law of conservation of angular momentum, where the change in angular momentum per unit time is equal to the magnitude of the external torque of the system. ”

Well, as the dust increases, you isolate the dust + the fan, there is no torque on the system. So angular momentum must remain conserved. The angular momentum is given by the formula.

i**Kinetic inertia) xw (Omega, i.e. angular velocity).

The moment of inertia is directly proportional to the mass (m) of the object.

So, as dust accumulates, m increases---i --- keeps angular momentum conserved and w (angular velocity) decreases.

It may be static electricity, but it is mainly caused by the movement of air in the area before and after the fan blade.

The moisture and dust in the air will condense after coming into contact with the fan blades, and the dust particles will be adsorbed on the surface of the damp fan blades, but not all of them.

What cannot be adsorbed on the surface of the fan blade is blown through.

For example, range hood fan blades, computer power supply fan blades, have unadsorption dust is blown out after the fuse is blown out, you should first check the use of the line and electrical appliances, exclude the specific reasons, it is possible that the fuse is caused by a certain point of the line or the internal short circuit of an electrical appliance caused by excessive current, after this exclusion, the fuse with a larger diameter can be replaced, the original fuse has been unable to load the existing current, and the diameter of the wire needs to be considered, and the current is too large is the accelerated aging of the wire.

Dust on the blades of the electric fan does affect the wind, so I don't believe you can give it a try.

The electric fan has been used for a long time, why does the fan blade stick a lot of dust, and the farther the fan blade rotates on the axis

The more dust there is, the farther away from the capacitance rotation axis, the greater the linear velocity of the fan blade and the greater the friction with the air. The more static electricity is generated by rubbing the air. In particular, the plastic fan blades are more noticeable. It will absorb a lot of dust.

In summer, we often use fans to dissipate heat, but the fan is easy to accumulate dust after a long time, it is not difficult to find that after using the fan for a period of time, the fan blades are covered with dust and even black, and it is very difficult to clean. So how should we deal with this dust, and then I will give you tips and teach you how to deal with the dust on the fan blades.

Method 1:

You can use baking soda, white vinegar, dish soap, and water to clean the dust on the fan. First prepare a container, then pour in baking soda, white vinegar, dish soap, water and stir well for later use, pour the evenly stirred liquid into the watering can, and use the watering can to spray the liquid onto the surface, fan blades and back of the fan. Put the fan in an open area and turn it on, so that the dust on the fan will be cleaned automatically.

Method 2:

You can use a screwdriver to disassemble the screws on the trapped strip of the hood to remove the trapped strip, and then remove the outer half of the hood, twist the large screw that fixes the fan blades, and unscrew it out to remove the fan blades, and use the large air volume of the hair dryer to blow away the dust that can be blown off. Then wipe the dust off the windshield with a damp rag inside and out, and then wipe the dust off the fan blades with a rag. Then align the fan blades with the motor shaft, install the fan blades and tighten the big screws, pay attention to the direction and then put the wind cover up and tie it with a trap strip, screw the screws, we recommend removing the dust once every 2 months to maintain the fan.

The above is the specific solution of how to deal with the dust on the fan blade, I believe that everyone can easily learn the operation steps through the introduction of the above content and deal with this problem.

1. After the fan is started, the air flow is large, and the fan blades are in contact with much more dust than other objects per unit time, so there is more dust adsorbed.

2. After the fan is started, the air flow rate accelerates, and the fan blades decelerate sharply, which is easy to absorb dust.

There's dust in the air, and the fan is a fan that allows the air to flow quickly, and there's a lot more air passing through the fan blades. So the dust will hang a lot.

There's electrostatic friction, and friction attracts light objects, and because molecules are moving randomly all the time and on the fan blades.

Because when the fan is working, the rotating fan blades rub against the air and carry an electric charge, and the charged body has the property of attracting small and light objects, so dust will be sucked on the fan blades

There is static electricity, which is easy to absorb dust.