The petroleum and chemical industries use vacuum distillation to help separate individual components and compounds from bulk process streams. This process plays an essential role in separating hydrocarbon fractions without high temperatures that could damage the fractions and cause coking. Vacuum is employed to lower the sprayed liquid’s boiling point, reducing the temperatures at which the more volatile elements will flash and reducing the energy/heat input required.
188金宝搏正网喷嘴经常用于将过程流体分配到真空蒸馏单元中。喷嘴产生的雾化良好的喷雾增加了过程流体的裸露表面积,从而提高了蒸发速率和分离效率。当填充的圆柱在真空塔中使用时,气侧压力降低必须低,喷出喷嘴也均匀地弄湿了包装,气体流动并接触液体。188金宝搏正网
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石化加工手册PDF
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Important factors to consider:
流动rate, spacing, uniformity, clog-resistance
Process vessel pressure, temperature, and fluid composition
Required material of construction for abrasive or corrosive environments
所需的覆盖范围
在喷嘴孔口之前喷雾介质闪烁的潜力
可用/所需的流速
Available pressure drop (∆P) across the nozzle
- ∆P = supply pressure at nozzle inlet – process pressure outside nozzle
- 重要的是要注意该过程侧在真空下的位置