일정 공간에 갇혀있는 액체를 왕복 또는 회전운동으로 압축하여 압력을 높임으로서 액체를 토출 측으로 밀어내는 회전기계
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| Reciprocating Pump | Rotary Pump |
| Piston, Diaphragm, Plunger 등의 왕복운동으로 유체를 Pumping 하기 때문에 유체가 불연속적으로 Pumping 되는 특성이 있음 거의 대부분의 Reciprocating Pump는 후단에 Pulsation Dampener를 설치해야 함 | Reciprocating Pump와는 달리 연속적이고, 균일하게 유체를 Pumping 함 후단에 Pulsation Dampener를 설치하지 않음 |
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– Power pump의 구동기 : motor, engine, turbine 등으로 crank 또는 camshaft에 의해 구동기의 회전운동이 pumping을 하기 위한 왕복운동으로 바뀜
– Direct acting pump : 동력 기체에 의해 구동되며, Steam으로 구동 되는 경우가 대부분이므로 Steam pump라고 함
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(1) Reciprocating pumps are typically classified as follows.
| Type of Drive | Direct Acting, Gas Driven-Steam Pump Power Pumps, Crank Driven-전동기,터빈 |
| Cylinder Orientation | Horizontal Vertical V Type and Others |
| Liquid End Arrangement | Plunger(Outside Packing) Piston(Inside Piston Rings and Packings on Piston Rod) |
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(2) Reciprocating pumps are typically classified as follows.
| Number of Pistons or Plungers | Simplex Duplex Triplex Quintuplex, etc. |
| Type of Action | Single Acting(Delivers on either forward or backward stroke, not both.) Double Acting(Delivers on both forward and backward strokes.) |
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Rotary Pump의 분류
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