内构件技术在旋风分离器内的应用进展
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摘要
内构件技术的开发与应用对于提高工业设备的利用效率、降低其能量损失具有重要意义。旋风分离器是用于气-固分离的工业设备,随着化工过程的发展,工艺上要求在保证分离效率的同时,能够减小压降。首先对旋风分离器的工作原理进行了介绍,分析了其减阻增效的机理。相比于结构优化和其他措施,安装内构件能够降低生产成本和缩减工程量。概述了减阻杆、导流叶片、稳涡器等几类内构件的工作原理和能够解决的流动问题。得出结论:在不改变旋风分离器结构尺寸的情况下,安装内构件能够改善旋风分离器内的干扰涡流,提高内部流动的稳定性,从而有效地实现分离器的减阻增效。此外,对内构件的发展趋势进行了展望。内构件的组合使用以及新型高效减阻内构件的开发,会更倾向于多元化、细致化、精确化、简约化,不仅能够提高分离效率,而且可以满足各种环保及工艺要求。
The development and application of internal components are highly significant to improve the efficiency and reduce energy loss of industrial equipment. Cyclone separator is a kind of industrial equipment for gas-solid separation. With the development of chemical processes, cyclone separator is required that it not only can improve separation efficiency but also can reduce pressure drop. In this review, the principle of cyclone separator was firstly introduced, and then mechanisms of both reducing pressure drop and improving separation efficiency were analyzed. Compared with structural optimization and other methods, the installation of internal components can save production costs and also can reduce the engineering work loads. In addition, this study summarized the mechanism of various internal components(e.g., reducing pressure drop stick, guide vane and vortex stabilizing device, etc.) and flow problems they could solve. Without changing the structure size, internal components can restrain the interference of vortex in cyclone separator and improve the stability of the flow. Because of the above reasons, internal components not only can effectively reduce pressure drop, but also can improve separation efficiency. Furthermore, the development trend of internal components was also reviewed in the paper. It has been found that use of multiple internal components will be more popular and the development of new internal components will be more diverse, delicate, precise and simple. Above development not only can improve separation efficiency and reduce pressure drop, but also can satisfy all kinds of environmental protection and process requirements.
The development and application of internal components are highly significant to improve the efficiency and reduce energy loss of industrial equipment. Cyclone separator is a kind of industrial equipment for gas-solid separation. With the development of chemical processes, cyclone separator is required that it not only can improve separation efficiency but also can reduce pressure drop. In this review, the principle of cyclone separator was firstly introduced, and then mechanisms of both reducing pressure drop and improving separation efficiency were analyzed. Compared with structural optimization and other methods, the installation of internal components can save production costs and also can reduce the engineering work loads. In addition, this study summarized the mechanism of various internal components(e.g., reducing pressure drop stick, guide vane and vortex stabilizing device, etc.) and flow problems they could solve. Without changing the structure size, internal components can restrain the interference of vortex in cyclone separator and improve the stability of the flow. Because of the above reasons, internal components not only can effectively reduce pressure drop, but also can improve separation efficiency. Furthermore, the development trend of internal components was also reviewed in the paper. It has been found that use of multiple internal components will be more popular and the development of new internal components will be more diverse, delicate, precise and simple. Above development not only can improve separation efficiency and reduce pressure drop, but also can satisfy all kinds of environmental protection and process requirements.
引文
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