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Fouling of Plate-and-Frame Heat Exchangers and Cleaning Strategies

机译：板框式换热器结垢及清洁策略

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Fouling of Plate-and-Frame Heat Exchangers (PHEs) is a complex phenomenon that is influenced by plate design, flow rates, and surface conditions. The understanding of basic fouling mechanisms is expected to guide the development of effective mitigation techniques, which are categorized as on-line and off-line techniques. It is shown through some case studies that properly designed PHEs are less prone to fouling than shell-and-tube heat exchangers (STHEs). The literature on fouling in PHEs having complex flow passages is somewhat limited; however, a reasonable progress has been made in understanding the crystallization and particulate deposition processes in PHEs. Both on-line and off-line cleaning methods are discussed along with probabilistic off-line cleaning schedule.
机译：板框式换热器（PHE）的结垢是一个复杂的现象，受板设计，流速和表面条件的影响。对基本结垢机制的理解有望指导有效缓解技术的发展，这些技术分为在线技术和离线技术。通过一些案例研究表明，正确设计的PHE比管壳式换热器（STHE）更不易结垢。关于具有复杂流道的PHE中结垢的文献有些局限。但是，在理解PHE中的结晶和颗粒沉积过程方面已经取得了合理的进展。讨论了在线和离线清洁方法以及概率性离线清洁时间表。

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