About a screw machine. Two single screw compressor. Twin-screw compressor Compressor Co., Ltd., Xianyang Qin Wei brand Cottle's twin-screw compressors are widely used in mining, chemical, power, metallurgy, construction, machinery, refrigeration and other industrial sectors, in a wide range of capacities and mining, and gradually Alternatively other types of compressors. Statistics show that sales of screw compressors has occupied more than 80% volumetric compressor sales in all running displacement compressors, 50% of screw compressors. Market share in the future people will continue to expand the screw compressor air compressor prices, especially oil-free screw air compressor and a variety of screw compressor technology will be developed faster. Now the twin-screw advantage: a high reliability of the screw compressor fewer parts, no wearing parts, so it Cottle compressor reliable operation, long life, overhaul interval of up to 4 to 80 000 h. 2, easy operation and maintenance of the screw compressor high degree of automation, the operator does not have to go through a long period of professional training, enabling unattended operation. 3, good power balance screw compressors no unbalanced inertia force, the machine can be smoothly at high speed, can be realized without foundation Qin Wei compressor operation, especially suitable for use as portable compressors, small size, light weight, small footprint. 4, adaptable screw compressor has forced gas transmission characteristics, volume flow is almost unaffected by the exhaust pressure in a wide range can maintain high efficiency, air compressor in the case does not make any structural changes machine, suitable for a variety of refrigerants. 5, between multiphase screw compressor rotor tooth surface is actually a gap, and thus impact the ability of liquid can contain fluid pressure feed gas containing dust, easy polymerization gases. Four action of the screw compressor injected screw compressors injection four main problems to solve cooling, lubrication, sealing, noise reduction. (1) Cooling effect: was micro-injected into the oil droplets and mixing with the compressed gas, extremely rapid heat transfer surface to absorb the heat of compression gas, cooling the pressurized medium, greatly reduce the exhaust gas temperature; (2) lubrication: In a dry type screw compressor, the two rotors are not in contact with each other, relying on precision synchronization gears maintain a gap. In the injection compressor, since there are a lot of oil exists and the female rotor absorbs only the total consumption of the compression work of a small part, which can dispense with the synchronization gear, the male rotor directly drives the female rotor. Further, since the oil injected into the bearing with lubricating oil used in exactly the same, so there is no need to use a complex set of sealing means to separate the gas with the lubricating oil, which makes the distance between the bearings supporting the rotor may be smaller, significantly increased a rotor stiffness, reduced distortion; (3) sealing action: internal screw compressor multiple leak paths, some of these leak paths are narrow gaps, the presence of oil greatly strengthen the sealing effect, so that through them To reduce the amount of leakage; (4) the noise reduction: The oil is injected into the viscous fluid, and the sound waves of the acoustic energy absorption and damping effect, noise can be reduced after the fuel injection is generally 10 to 20 decibels. Cottle air compressor, air compressor, air compressor Qin Wei, Cottle class technology provided by Compressor Co., Ltd., Xianyang Qin Wei. Xianyang Qin Wei Compressor Co. (www.xykyj.cn/) strong, credible, Xianyang in Shaanxi compression, separation equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Qin Wei Air and you hand into the brilliant, for a better future!