Screw rotor and air compressor using same
A technology for air compressors and rotors, which is applied to rotary piston machinery, parts of pumping devices for elastic fluids, and rotary piston/oscillating piston pump components, etc. It can solve the problem of reducing the compression force of screw rotors and reducing Problems such as the extrusion efficiency of the screw rotor to the air, to achieve the effect of improving the extrusion efficiency and reducing the probability of back movement
Pending Publication Date: 2022-05-13
DESRAN COMPRESSOR SHANGHAI
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Problems solved by technology
[0003] The conventional twin-screw compressor rotor adopts an equal-pitch rotor structure, so the gas has no volume change during transportation. When the gas enters the exhaust end face, it is compressed, and the distance between the two screw rotors remains unchanged, so the air enters the exhaust. During the compression process of the gas end surface, the extrusion force has been maintained at a certain value, thereby reducing the compression force of the screw rotor on the gas, thus reducing the extrusion efficiency of the screw rotor on the air
Method used
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Embodiment Construction
[0058] 1-7 will be described in further detail below in conjunction with the accompanying drawings.
[0059] The time controller 85 model is KG316T in the present embodiment.
[0060] The embodiment of the present application discloses a screw rotor.
[0061] refer to figure 1 , the screw rotor includes a main rotor 11 and an auxiliary rotor 12, the auxiliary rotor 12 is provided with a spiral groove 13, and a plurality of spiral grooves 13 are arranged in a circular array around the axis of the auxiliary rotor 12; The helical ribs 14 forming the air inlet cavity are provided in a plurality of helical ribs 14 in a circular array around the axis of the main rotor 11 , and the number of helical ribs 14 and the helical grooves 13 are the same and are arranged in one-to-one correspondence.
[0062] refer to figure 1 Each spiral rib 14 is uniformly provided with a closed rib 16, the two ends of the closed rib 16 are flush with the two ends of the spiral rib 14, and the spiral gr...
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The invention relates to a screw rotor and an air compressor using the screw rotor, and relates to the technical field of air compressors, the screw rotor comprises a main rotor and an auxiliary rotor, the auxiliary rotor is provided with a spiral groove, the main rotor is provided with a spiral rib forming an air inlet cavity with the spiral groove, and the spiral rib is provided with a plurality of closed ribs capable of making contact with the spiral groove at intervals; and an extrusion cavity is formed among every two adjacent closed convex edges, the spiral convex edge and the spiral groove. The main rotor and the auxiliary rotor rotate at the same time to drive air to enter the air inlet cavity to be extruded and compressed, meanwhile, when the closed protruding edges rotate into the spiral grooves, the closed protruding edges continue to extrude and compress the air, so that the air is stored in the extrusion cavity after being extruded and compressed, and therefore the air is extruded twice and stored in the extrusion cavity at the same time; and therefore, the air return probability is reduced, and the extrusion efficiency of the screw rotor on the air is improved.
Description
technical field [0001] The present application relates to the technical field of air compressors, in particular to a screw rotor and an air compressor using the screw rotor. Background technique [0002] Twin-screw compressor is a volumetric rotary compressor used to obtain low-to-medium pressure gas, and has a wide range of applications in modern industry. It inherits many advantages such as long service life, reliable operation, small vibration, low noise, stable operation and no surge phenomenon of rotary machinery. At the same time, it has the characteristics of no wearing parts such as air valves, forced suction and exhaust, and simple processing. Central components in systems such as supply, cooling and waste heat recovery. [0003] The conventional twin-screw compressor rotor adopts an equal-pitch rotor structure, so the gas has no volume change during transportation. When the gas enters the exhaust end face, it is compressed, and the distance between the two screw r...
Claims
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IPC IPC(8): F04C29/00F04C18/16F04C29/04F04C23/02
CPCF04C18/082F04C18/16F04C29/04F04C23/02F04C2250/20F04C2240/20
Inventor 余智
Owner DESRAN COMPRESSOR SHANGHAI