소개글
[기계공학] 기계문제의 종류-공동현상(Cavitation), 스케일(scale), 수격현상(Water Hammering)(영문)에 대한 자료입니다.
목차
1.CAVITATION
2.SCALE
3.WATER HAMMERING
본문내용
Cause of Occurrence
- Large suction head of pump.
- Large friction loss of pump.
- High velocity of impeller of pump.
- Position of pump is higher than fountainhead.
Solution
- Make suction head and friction loss small.
- Make the velocity of impeller small.
- Install the pump lower than fountainhead.
- Use double suction pump.
- Control the water pressure inside tube higher than vapor
pressure.
- Make suction caliber big.
- Install pump more than two.