Analysis on the Working Principle of Screw Air Compressor

         The main components of the screw air compressor are the screw head and the oil-gas separation barrel.  The screw type single-stage compression air compressor is composed of a pair of male and female rotors (or called screws) that are parallel to each other and rotates in the cylinder, so that the air between the rotor tooth slots continuously produces periodic volume changes, and the air moves along the  The rotor axis is conveyed from the suction side to the output side, realizing the whole process of suction, compression and exhaust of the screw air compressor.

        The air inlet and air outlet of the air compressor are respectively located at the two ends of the casing, and the slots of the female rotor and the teeth of the male rotor are driven by the main motor to rotate.  The motor directly drives the compressor to make the crankshaft rotate, which drives the connecting rod to make the piston reciprocate, causing the volume of the cylinder to change.  Due to the change of the pressure in the cylinder, the air enters the cylinder through the air filter (muffler) through the intake valve.  The directional valve (check valve) enters the air storage tank, and when the exhaust pressure reaches the rated pressure, it is controlled by the pressure switch and automatically shuts down.

The working principle of the screw air compressor is mainly divided into the following four processes

1.Inhalation stage

        The motor drives the rotor. When the tooth groove space of the main and slave rotors turns to the opening of the intake end wall, the space is large, and the outside gas is filled in it. When the intake side end surface of the rotor turns away from the shell  At the air inlet, the air between the tooth grooves is closed between the main and slave rotors and the casing to complete the suction process.

2.Compression process

        At the end of the suction, the closed space between the tooth peaks of the main and slave rotors and the shell becomes smaller with the change of the rotor angle, and moves in a spiral shape. This is the "compression process".

3.Compressed gas and fuel injection process

        During transportation, the capacity continues to decrease, the gas is continuously compressed, the pressure rises, and the temperature rises.  In addition, the lubricating atomized due to the air pressure difference is sprayed into the compression chamber, so as to achieve the functions of compression, sealing and lubrication.

4.Exhaust process

        When the closed tooth crest of the rotor rotates to meet the exhaust port of the casing, the compressed air is gradually discharged until the matching surface of the tooth crest and the tooth groove moves to the exhaust end face, at this time the space of the tooth groove is O,  That is, the exhaust work is completed.  In addition, another pair of tooth grooves of the main and slave rotors has been transferred to the gas end, forming a large space to start the suction process.

Industrial application

1.Machinery manufacturing industry

         The traditional machinery manufacturing industry is ushering in the wave of fully automatic intelligence. Rightmech series screw air compressors can provide stable, efficient and continuous compressed air as the driving force to ensure reliable manufacturing operations and realize industrial safety, reliability and stability  Production.

2.Textile manufacturing industry

        The textile industry has very strict standards for the use of air. Fine particles such as fibers, cotton threads, and dust are floating in the use environment, and the 24-hour uninterrupted production condition has extremely high requirements on air compressors.  Rightmech series screw air compressors can ensure the supply of compressed air, and the high-reliability compressors ensure the normal operation of daily production.

3.Energy industry

        Thermal power generation, hydropower and other energy industries, in the process of energy transportation, pressurization can facilitate energy transmission, and at the same time, process manufacturers have strict requirements that they cannot stop production.  Rightmech series screw air compressors can quickly provide high-pressure stable gas as the driving force, so that the transportation is smooth and the energy is fully utilized efficiently.

4.Chemical Manufacturing

       Compressed air is vital to the chemical manufacturing industry, especially the polymerization industry.  Rightmech series screw air compressors can efficiently provide high-quality and stable pressure compressed air for the polymerization industry, so that the polymerization process can be reliably guaranteed.