Working principle of vacuum cleaners
There are many types of vacuum cleaners, which are generally classified according to shape, function and input power.
According to the shape, it can be divided into three types: vertical, horizontal and portable.
The upright vacuum cleaner is installed in the cylindrical casing, and the motor and the vacuuming part are installed in sequence from top to bottom.
Horizontal vacuum cleaners are equipped with a vacuum cleaner and a motor in sequence along the horizontal direction in the casing.
There are many styles of portable vacuum cleaners, the common ones are shoulder type, stick type, portable type, miniature type and so on.
Shoulder vacuum cleaners are the most common type of portable vacuum cleaners. They are actually miniaturized vertical and horizontal vacuum cleaners. They are equipped with straps and are carried on the shoulders when used; stick vacuum cleaners have the same shape A stick, the vacuuming part and the motor are installed in the middle, the front end is the suction nozzle, and the back end is the handle; the hand-held vacuum cleaner has a simple structure, generally does not have a hose, and is directly held in the hand when used; the miniature vacuum cleaner has different shapes and uses Dry battery is used as the power source, without any accessories, it is flexible to use, but the suction power is very small.
According to the function of use, it can be divided into four types: dry type, wet and dry type, carpet type and waxing type.
Dry vacuum cleaners can only suck in dry dust, not liquid dirt.
The wet and dry vacuum cleaner can not only suck in dry dust, but also liquid dirt, which can remove the dirt in the bathroom. The input power of this vacuum cleaner is between 700 and 950 watts. It can take in 10 liters of water when used wet and 14 liters of dry dust when used dry.
The carpet vacuum cleaner has special brushes on the bottom for cleaning the carpet. The angle of the bottom and the main column can be adjusted to suit the operation in various occasions.
The waxing vacuum cleaner is equipped with a pair of counter-rotating brushes at the bottom, and different functions can be accomplished by changing the brush discs on the brush head. brush plate; when waxing, a felt brush plate needs to be installed.
There are many types of vacuum cleaners, but they all work on the same principle. Before working, connect various accessories such as hoses, extension pipes and suction nozzles as required, and install them at the suction port of the vacuum cleaner. After the power is turned on, the series excitation motor rotates at a high speed and drives the fan to rotate. The blades in the impeller continuously work on the air, so that the air obtains energy and discharges the fan at a very high speed. The air in the impeller is continuously replenished to form an instant vacuum in the dust suction part, that is, a relatively high negative pressure difference is formed between the dust suction part and the outside atmospheric pressure. With the airflow, the dust enters the suction part through the suction nozzle, the extension pipe, the hose and the suction port. In the dust collector, after being filtered by the filter, the garbage and dust are trapped in the dust collection chamber, and after the air passes through the filter, it is discharged from the vacuum cleaner through the exhaust port. When the dust collection chamber is full to a certain extent, it can be removed once.
