Before saying these two products we say next main distinction between them first, this is both a kind be fan actually. Its are main what the difference is exhaust pressure is different, pressure meets the exhaust of pneumatics machine commonly be more than 2bar, the exhaust pressure that compares pneumatics machine air-blower is 0.15bar ~ 2bar commonly between. These two products belong to air equipment, main effect is will carry air to use gas device through be being pressed. The pressure that main difference is them is compared different, pneumatics machine is move with high pressure ratio and air-blower is move with low pressure comparing. Pressure compares = outlet pressure / entrance pressure.
Air equipment generates pressurization air stream in producing production course, with phyletic equipment different pressure is not compared. Pneumatics machine compresses air little space in, make its density bigger, pressure is higher. Air-blower is mobile air, need to increase pressure moderately only. Both use up in function, cost and the sources of energy go up to have distinction.
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Pneumatics machine basically is to pass pair of air to undertake compress and changing aeriform volume, the cleanness that provides motivation and high level to use gas end next, dry, cooling compression air. Interior basically controls system, cooling system, gas route system and composition of oil path system by circuit.
And air-blower basically is divided for cubage type and centrifugal type two kinds work principle. The air that air-blower produces basically is used at effort to carry, ventilated, carry for oxygen, aeration and special gas etc. Cubage type air-blower and screw pneumatics machine are similar turn from amiable crock and synchronous gear composition by yin and yang, centrifugal type air-blower basically flows by spiral case, impeller, collect implement wait for composition.
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Normally pneumatics machine has two kinds of means to reduce air volume, one kind is cubage type, through reducing the volume of antrum change compresses air (basically include piston and screw type) ; Another kind is speed type, be quickened through bringing to bear on to come from mental efforts and decelerate air (basically include centrifugal type) .
Principle of cubage type air-blower, mutual in air cylinder clench the teeth forms rotor of two parallel yin and yang working cubage, pass synchronous gear, rotor makes roll of retrorse high speed, gas is squeezed to give air cylinder. Blast machines and tools has Luo Ci to be defeated by gas feature compulsively, exhaust pressure and systematic back pressure are relevant, discharge criterion and rotate speed become direct ratio. Screw air-blower realized internal pressure to shrink in the process that gas carries, efficiency is taller, exhaust temperature and noise are lower.
Principle of centrifugal type air-blower, the impeller that uses high speed to rotate quickens gas, the change when gas sheds classics impeller becomes radial, enter diffuser next, in diffuser, aeriform velocity of flow is reduced, kinetic energy changeover becomes pressure can. Centrifugal type air-blower has a structure compact, run smooth, noise low characteristic.
Summary: The distinction of air-blower and empty press its pressure is compared different, rigid structure and working principle also each are not identical. The main application setting of pneumatics machine basically offers pressure and high quality to compress air for power plant. Air-blower basically applies at blowing to sweep, ventilated, effort is carried, wait for oxygen.