Titanium spirit is special compressor is small write the introduction about centrifugal the contrast with screw pneumatics machine, basically include the actor defect of both, dot of similarities and differences, reach use situation.
1, centrifugal pneumatics machine: Pointing to the aeriform motion in pneumatics machine is an edge perpendicular undertake at the radial of pneumatics crankshaft.
2, working principle: It is working annulus is in gyral process, because rotate to reach the enlarge in working annulus to control flow from the action of mental efforts, make aeriform pressure gets rising, speed also gets rising. It is subsequently in diffuser farther speed can translate into pressure can. Pass it to be able to increase aeriform pressure.
3, characteristic:
Centrifugal pneumatics machine is machine of pneumatics of type of a kind of speed, compare an advantage to have with photograph of other pneumatics machine:
⑴ capacity is large, exhaust is even, air current does not have pulse.
⑵ rotate speed is high.
Do not need to lubricate inside ⑶ machine.
⑷ sealed effect is good, divulge a phenomenon little.
⑸ has flat function curve, working range is wider.
(6) is fragile a quantity of little, maintenance little, operational cycle is long, come true easily automation and large change.
4, suitable scope:
Big midstream quantity, medium the circumstance of low-pressure force. 5 classification:
(Does 1) divide: by axial type? ? of be jealous of of ブ caving Su establishs ties on an axis a few impeller.
Double axis 4 level type, 4 impeller part the two end of cantilever ground outfit in two pinion, rotate * electric machinery passes gear drive pinion.
(Does 2) divide: by the type of air cylinder? crafty history is qualitative glue painful force quite Shi Zhijian?
(3) presses classification of form of the refrigeration between class:
The refrigeration outside class, every paragraphs of gas after compressing enters condenser outside output machine. The refrigeration inside machine, condenser and housing casting are an organic whole.
(Is 4) pressed compress medium to classify: ? Does of enough of palm clear force enough of clear of of instep of ⒀ of clear enough is taken?
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The distinction of centrifugal pneumatics machine and screw pneumatics machine
Screw pneumatics machine is one of machine of cubage type pneumatics, airy is compressed is to rely on to install the yin and yang of mutual and parallel clench the teeth inside park housing to the alveolar cubage of rotor changes and be achieved. Rotor deputy inside the housing that with it sky of essence of life cooperates roll makes rotor alveolar the gas between arises ceaselessly periodic cubage changes and along rotor axes, push by inspiratory side to eduction side, finish inspiratory, compress, exhaust works 3 times process.
The main drawback of screw pneumatics machine
1) cost is high. Because the rotor tooth flank of screw pneumatics machine is one airspace curved surface, need to use tailor-made cutting tool to undertake machining on costly special device. Additional, the treatment precision of bucket of oil gas of empty to screw type press also has very high demand.
2) cannot apply to high-pressured circumstance. Because get the limitation of rotor stiffness and bearing life, screw pneumatics machine can apply to medium, low-pressure limits only, exhaust pressure does not exceed 3Mpa commonly.
3) does not apply to small capacity circumstance. Machine of screw type pneumatics relies on clearance sky to seal gas, at present kind when only cubage discharge is more than 0.2M3/min, screw pneumatics machine just has superior performance.
Above is the main distinction of centrifugal pneumatics machine and screw pneumatics machine. Overall for, machine of screw type pneumatics is applied to in using tolerance, fall, fluctuant range is big, not tall to compressing air oiliness to ask, and machine of centrifugal type pneumatics is applied to with tolerance big, tend smooth, and air quality is high, of devoid oil.