【摘要】 通过对水力旋流器压力损失的分段测定,发现旋流腔和锥体段压力损失最大,占总损失的50%以上,其次是入口段,接近40%,而圆柱尾管段所占比例最小,不到10%;而且各段所占比例基本不随流量变化而改变。由于旋流分离的有效压力损失段在旋流器内腔,并非在入口处,因此减小入口段压力损失是降低水力旋流器无效能量损耗的突破口。利用非金属材料水力旋流器进行试验,找出了有效降低水力旋流器压力损失的方法,试验结果证明,加大水力旋流器入口截面尺寸可有效降低总压力损失,而其分离效率基本不受影响。更多还原

【Abstract】 Determination of pressure drop in a hydrocyclone shows that, the pressure drop in the revolving cavity and cone section is the largest, holding over 50% of the total pressure drop, and that in the inlet section is the second largest, holding nearly 40%; while that in the tail tube section is the smallest, holding less than 10%. The percentages of these pressure drops hardly change with the change of flow rate. The ineffective pressure drop section is the inlet section, therefore, decreasing inlet’s pressure drop is the key to decreasing the total pressure drop in the hydrocyclone. The method for reducing effectively the pressure drop in the hydrocyclone is found by means of lab test. The test proves that the total pressure drop can be reduced by enlarging the section size of the hydrocyclone inlet with little influence on the separation efficiency.更多还原