含大粒径颗粒的液固两相物料输送减压装置模块化设计与数值模拟

Modular Design and Numerical Simulation of Depressure Device for Conveying Pipe of Liquid-Solid Materials with Large-size Granules

采用多个孔板式节流单元,模块化设计了含大粒径颗粒物料的液固两相物料输送管道的多级减压装置。通过数值模拟对不同孔径的减压装置的减压效果进行了对比分析,确定由10个7mm孔径的孔板式节流单元组合可有效实现设定工况下物料的减压操作。模块化设计的多级减压装置可在现场灵活组合,在防止发生堵塞的同时能满足不同的压降需求。

Multiple orifice plate-type throttling elements were adopted and the modular design of a multi-stage depressure device for conveying pipe of liquid-solid materials with large-size granules was implemented,including having the numerical simulation adopted to comparatively analyze the pressure-relief effect of the depressure device with different apertures.The results showed that,the combination of 10 orifice plates with 7mm diameter orifice is the best choice for the given working condition.The modular multi-stage depressure device can be flexibly assembled in-situ and it can prevent any blockage while satisfying various pressure drop requirements.