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    • 10. 发明公开
    • Heat exchanger with floating head
    • Wärmetauschermit schwimmendem Endkasten
    • EP1357344A2
    • 2003-10-29
    • EP03007752.3
    • 2003-04-04
    • ExxonMobil Research and Engineering Company
    • Calanog, Marciano M.Rudy, Thomas M.Wanni, Amar S.
    • F28D7/16F28F9/02
    • F28F9/0137F28D7/16F28F9/02F28F9/0229F28F9/0241F28F9/182
    • A heat exchanger (100) in which dead zones and areas of stagnation are significantly minimized or eliminated. The heat exchanger (100) includes at least one floating tubesheet (190) which is movable in a longitudinal direction in response to tube expansion and contraction relative to the heat exchanger shell (150). The shell (150) is joined to the ends by conical members (135) which preferably join onto the shell at a distance along its length to provide shell extensions (115) which promote better flow patterns in the regions of the tube ends. Tube erosion may be addressed by providing a sacrificial portion of tube length extending beyond the tube sheets (180,190) so as to make repair and replacement of the eroded portion of tubes significantly cheaper, easier and with minimal process interruption. Because axial or longitudinal flow is employed with respect to the shell-side fluid, tube vibration problems are generally eliminated and fouling is minimized through the use of high fluid velocities. Multiple heat exchangers may be combined in a modular fashion by placing individual exchangers either in series, in parallel or both in order to satisfy various process requirements.
    • 一种热交换器(100),其中死区和停滞区显着地最小化或消除。 热交换器(100)包括至少一个浮动管板(190),其可响应于相对于热交换器壳体(150)的管膨胀和收缩在纵向方向上移动。 外壳(150)通过锥形构件(135)连接到端部,锥形构件(135)优选地沿着其长度以一定距离连接到壳体上,以提供壳体延伸部(115),其在管端部的区域中促进更好的流动图案。 可以通过提供延伸超过管板(180,190)的管长度的牺牲部分来解决管道侵蚀,从而使管道的侵蚀部分的修理和更换显着更便宜,更容易并且以最小的工艺中断。 由于相对于壳侧流体采用轴向或纵向流动,因此通常消除管振动问题并通过使用高流体速度使污垢最小化。 多个热交换器可以以模块化的方式组合,通过将各个交换器并联或并联,以满足各种工艺要求。