Air compressor working principle:
Screw air compressor is a pair of parallel male and female rotors (or screws) rotating in the cylinder, so that the air between the rotor slots continuously generates periodic The volume changes, and the air is transported from the suction side to the output side along the rotor axis to realize the whole process of suction, compression and exhaust of the screw air compressor. The air inlet and the air outlet of the air compressor are respectively located at two ends of the housing, and the slots of the female rotor and the teeth of the male rotor are driven to rotate by the main motor. The compressor is directly driven by the electric motor to cause the crankshaft to rotate, and the connecting rod is caused to reciprocate the piston, causing the cylinder volume to change. Due to the change of the pressure in the cylinder, the air is passed through the air cleaner (muffler) into the cylinder through the intake valve. During the compression stroke, the compressed air passes through the exhaust valve due to the reduction of the cylinder volume, and the exhaust pipe is single. The valve (check valve) enters the gas storage tank, and when the exhaust pressure reaches the rated pressure of 0.7 MPa, it is automatically stopped by the pressure switch control. When the pressure of the gas storage tank drops to 0.5--0.6MPa, the pressure switch automatically starts to start.
Introduction of screw air compressor: Screw air compressor is the purpose of compressing gas through the mutual engagement of the two rotors. At the suction end of the rotor, as the meshing helical teeth are gradually disengaged, a cavity with a gradually enlarged volume (referred to as an inter-tooth cavity) is formed between the two teeth, and the outside air is continuously sucked until the pair of spirals The teeth are again engaged, thereby completing the inhalation process. When the inter-tooth cavity moves to the exhaust end along the axis of rotation of the rotor, since the exhaust port is disposed in a small space, the continuous meshing of the two helical teeth is gradually reduced before the communication with the exhaust port The volume of the cavity between the segments, so as to achieve the purpose of compressing the gas, completes the process of gas compression. Finally, the interdental cavity communicates with the exhaust port, and the compressed gas is discharged from the body to complete a working cycle.
Piston air compressor introduction: Piston air compressor has a variety of structural forms. According to the configuration of the cylinder, there are several types of vertical, horizontal, angle, symmetrical balance and opposite. According to the compression series, it can be divided into three types: single-stage, two-stage and multi-stage. According to the setting method, it can be divided into two types: mobile and fixed. According to the control mode, it can be divided into two types: unloading type and pressure switch type. Among them, the unloading control mode means that when the pressure in the air tank reaches the set value, the air compressor does not stop running and opens the safety valve to perform the non-compression operation. This idling state is called unloading operation. The pressure switch type control mode means that when the pressure in the gas tank reaches the set value, the air compressor automatically stops running. Introduction of sliding vane air compressor: There is only one main moving part in Fusheng air compressor. It is the rotor (A), which is placed in the cylinder (B) in an eccentric manner. There are many precise mechanisms in the rotor. The chute and the vane (C) move in and out of these chutes by lubrication of the oil. The air enters from (D), and as the rotation causes the section (E) formed by the slider to gradually decrease, the air is compressed, and the oil is ejected from (F) to cool the compressed air, and is sealed. Clearance, lubrication of the machine and control of the unloading effect. The oil in the compressed air is separated by 99% in the first swirl hood (H), and is continuously separated completely into the high-efficiency oil separator (G) after passing through the labyrinth structure. The clean compressed air is then output from the compressor outlet. Centrifugal air compressor introduction: Centrifugal air compressor is a power type air compressor. It converts energy through a rotating turbine. The rotor realizes the above conversion by changing the kinetic energy and pressure of the air. The kinetic energy to pressure is converted by reducing the flow rate of air by a stationary diffuser. The centrifugal air compressor is an oil-free air compressor, and the lubricating oil of the moving gear is sealed by the shaft seal and the air. The centrifugal type is a continuous working type compressor with few moving parts, which is especially suitable for the requirement of no oil in the atmosphere. Centrifugal air compressors are water-cooled, and typical units include aftercoolers and all controls.
Oil-free air compressor introduction: oil-free air compressor, with other components with strong versatility, no foundation, low noise, small vibration, compact structure, balanced operation and high reliability. Does the series have basic lubrication? Compressor, no basic water cooling, no basic wind. There are three major categories of cold compressors. The maximum displacement is up to 18m3 and the exhaust pressure is up to 1.2 Mpa. There is no foundation, no lubrication, low noise. Mobile air compressor introduction:
slide type mobile screw machine, can be directly used in coal mines with gas and coal explosion hazard areas. Compressed air is provided for wind motives such as tunneling and anchoring, air compressors and complete equipment (motors, switches, air reservoirs, coolers, safety devices), etc., all mounted on a frame (the gauge is 600) It is a flexible and flexible underground air compressor unit. It can be towed or pushed to the gas place. The pipeline can be put into use, no special caverns are needed, and no foundation is needed.
This article is edited by China DSNEAIR Compressor Manufactory (https://air-compressor.net).
What is the working principle of the air compressor, what classifications are there, and what is the role?
Air compressor working principle: