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内容:水泵的允许吸水高度,对于热水温度必须考虑它的变仆,因随着水温的上升,水泵吸水高度而减少,气蚀要发生。对于流体的温度当在饱和蒸气压力以下,流体就会气化,在水泵内产生气泡。由于这种气泡在管内很快向高压部分移动、消失,而使水泵性能不稳定,产生振动和噪音,以致会冲击水泵叶片产生气蚀。建议:气蚀的发生决定于吸入绝对压力,为了防止气蚀,要考虑水泵的有效吸水高度
Content: The pump allows water absorption height, for the hot water temperature must consider its change servant, because as the water temperature rises, the water pump reduces the height, the cavitation will happen. When the temperature of the fluid is below the saturated vapor pressure, the fluid will vaporize and bubbles will form inside the pump. Because of this bubble in the tube quickly to the high pressure part of the move, disappear, leaving the instability of the pump performance, resulting in vibration and noise, which will impact on the pump blade cavitation. Recommendation: The occurrence of cavitation depends on the absolute pressure inhalation, in order to prevent cavitation, to consider the pump effective water absorption height