Steam condensing apparatus with freeze-protected vent condenser
    1.
    发明授权
    Steam condensing apparatus with freeze-protected vent condenser 失效
    具有防冻通风冷凝器的蒸汽冷凝设备

    公开(公告)号:US5765629A

    公开(公告)日:1998-06-16

    申请号:US585342

    申请日:1996-04-10

    IPC分类号: F28B1/06 F28B9/08 F28B9/10

    摘要: A two-stage steam condenser that prevents freezing from occurring in the tube rows by continual purging of the tube rows. Such continual purging prevents any steam from back-flowing into a tube row thereby eliminating the possibility that condensate or noncondensable gases will become trapped therein. This is achieved by isolating each of the tube rows in the second stage of the condenser so that the pressure of one tube row is not exposed to the pressure occurring in another adjacent tube row. The condensate collected in the various tube rows of this second stage is delivered to a common drain pot that is hydraulically balanced to accommodate the various pressures in these tube rows. Such hydraulic balancing also prevents any back-flowing from occurring from one tube row into another. Furthermore, in this second stage of the steam condenser, the steam and resulting condensate both flow concurrently downward while any noncondensable gases are vented counter-currently upward against such steam and condensate flow.

    摘要翻译: 两级蒸汽冷凝器,通过连续吹扫管排,防止管排中发生冻结。 这种持续吹扫防止任何蒸汽回流到管排中,从而消除了冷凝物或不可冷凝气体将被捕获在其中的可能性。 这通过隔离冷凝器的第二级中的每个管排来实现,使得一个管排的压力不暴露于在另一相邻管排中发生的压力。 收集在该第二阶段的各管排中的冷凝物被输送到液压平衡以容纳这些管排中的各种压力的公共排水罐。 这种液压平衡还防止从一个管排发生到另一个管排的任何反向流动。 此外,在蒸汽冷凝器的第二阶段中,蒸汽和产生的冷凝物两者同时向下流动,而任何不可冷凝气体相对于这种蒸汽和冷凝物流反向排出。