1. The difference between air compressor, compressor and air pump
Air compressor is an air compressor. Mainly used to compress air mechanical products, in many places will be used. For example, one of the most common functions of an air compressor is to be able to compress air to be used as power, which is widely used in the power industry. In addition, it can also be used for refrigeration and separation of gas, gas transportation and so on. In life and work play a very important role. Compressor is the general term. And there are many types of compressors, such as refrigerant compressors, hydrogen compressors and air compressors and so on. Air compressor is only one kind of compressor, its compression medium is air, and the compressor can be used to compress many things, not only air. Therefore, the distinction between an air compressor and a compressor is like the distinction between Chinese people and human beings. The Chinese are included in the category of human beings, and the air compressor is included in the general concept of compressor, a type of compressor.
Air pumps are generally thought to be air compressors. But the air pump in a long time ago is said to be a piston air compressor, and now there are more types of air compressors, screw machines, oil-free machines, energy-saving inverter air compressors and so on. The principle of the air pump and air compressor is still different.
2. The working principle of the air compressor
The air inlet and outlet of the air compressor are located at the two ends of the shell, the groove of the negative rotor and the teeth of the positive rotor are driven by the main motor and rotate. The compressor is driven directly by the motor, which causes the crankshaft to rotate and the connecting rod to reciprocate the piston, causing the cylinder volume to change. Due to changes in cylinder pressure, through the inlet valve so that the air through the air filter (muffler) into the cylinder, in the compression stroke, due to the reduction of cylinder volume, the compressed air through the role of the exhaust valve, through the exhaust pipe, the check valve (check valve) into the tank, when the exhaust pressure reaches the rated pressure of 0.7MPa by the pressure switch to control and automatic shutdown. When the pressure of the gas storage tank drops to 0.5-0.6MPa, the pressure switch is automatically connected to start.
3. The working principle of the air pump
The engine of the air pump drives the crankshaft of the air pump through two delta belts to drive the piston for pumping, and the pumped gas is guided to the gas storage cylinder through the pipeline. On the other hand, the storage cylinder and through a gas line to the storage cylinder of gas into the fixed in the air pump regulator, so as to control the air pressure in the storage cylinder. When the gas pressure in the storage cylinder does not reach the regulator set pressure, the gas from the storage cylinder into the regulator can not open the regulator valve; when the gas pressure in the storage cylinder to reach the regulator set pressure, the gas from the storage cylinder into the regulator valve top open the regulator valve, into the air pump and the regulator connected to the airway, and through the airway to control the air pump air inlet is always open, so that the pump is empty load operation to achieve The purpose of reducing power loss and protecting the air pump. When the air pressure in the storage cylinder is lower than the pressure set by the regulator due to loss, the valve in the regulator is returned by the return spring, disconnecting the control airway of the air pump, and the air pump starts pumping again.