The higher the speed of most mechanical equipment, the more efficient it will be, but this does not apply to all mechanical equipment. For example, roots vacuum pump once the speed is too high, not only will not have the effect of improving work efficiency, but will lead to roots pump some problems. Then why on earth roots vacuum pump equipment speed can not be too high?
1, roots vacuum pump operation of the suction and exhaust is through the action of the air valve to achieve, if the speed is too high, will lead to the action of the air valve can not keep up, easy to produce lag phenomenon, resulting in increased volume loss, but not conducive to the vacuum of roots vacuum pump to improve. At the same time will also lead to serious pump valve impact, aggravating roots pump equipment wear
2, roots vacuum pump equipment itself will shake, with the increase of speed, its vibration will increase, will have adverse effects
3, another situation is due to the high speed, in a certain pumping rate, the shorter the trip, and the filling valve, the cylinder diameter can not be too small, otherwise it will cause clearance volume increase, compression line and expansion line become shorter, is not conducive to improve the vacuum roots vacuum pump. To ensure the vacuum, roots pump equipment should use low speed, long travel
4, after the increase of speed, the balance of the roots vacuum pump of the balance channel will become not obvious, can not balance the gas in time, can not reduce the impact of clearance volume, thus affecting the vacuum
Therefore, roots vacuum pump only to keep its speed in a reasonable range, can keep its efficiency in a good state. Pay more attention to the speed problem when operating, once abnormal should be adjusted in time, to avoid the occurrence of bad conditions
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