Pleated heat and humidity exchanger with flow field elements
    1.
    发明申请
    Pleated heat and humidity exchanger with flow field elements 审中-公开
    带流场元件的折叠式热交换器

    公开(公告)号:US20080085437A1

    公开(公告)日:2008-04-10

    申请号:US11905190

    申请日:2007-09-28

    IPC分类号: H01M8/04 B01F3/04

    摘要: A heat and humidity exchanger comprises a pleated membrane cartridge disposed in a housing. The cartridge comprises a pleated water-permeable membrane via which heat and humidity can be transferred between two fluid streams. A flow field element is disposed within some or all of the folds of the pleated membrane, for directing the stream over the inner surfaces of the folds. The flow field path defined by the flow field element enhances flow distribution across one or both membrane surfaces, controlling the relative flow paths of the two streams on opposite sides of the membrane and reducing the pressure drop across the heat and humidity exchanger. The flow field elements provide improved water transfer and allow for a more compact device. The flow field elements can also assist in supporting the pleated membrane and controlling the pleat spacing within the pleated membrane cartridge. The heat and humidity exchanger is particularly suitable for fuel cell and energy recovery ventilator (ERV) applications.

    摘要翻译: 热湿交换器包括设置在壳体中的打褶膜盒。 该药筒包括打褶的透水膜,通过其可以在两个流体流之间传递热和湿气。 流场元件设置在打褶膜的折叠的一些或全部中,用于将流引导到折叠的内表面上。 由流场元件限定的流场路径增强了跨过一个或两个膜表面的流动分布,控制了膜的相对侧上的两个流的相对流动路径,并且减少了跨过热和湿交换器的压降。 流场元件提供改进的水转移并允许更紧凑的装置。 流场元件还可以有助于支撑褶皱膜并控制折叠膜盒内的褶皱间隔。 热交换器特别适用于燃料电池和能量回收通风机(ERV)应用。

    Pressure control system for low pressure operation
    2.
    发明授权
    Pressure control system for low pressure operation 有权
    低压运行压力控制系统

    公开(公告)号:US06935363B2

    公开(公告)日:2005-08-30

    申请号:US10716553

    申请日:2003-11-20

    IPC分类号: G05D16/16 G05D16/18

    摘要: A pressure control system for controlling the pressure of a process fluid stream at a certain location having a pressure regulator disposed in the process fluid stream, through which the process fluid stream flows. A first pilot controller senses the pressure of the process fluid at the location and receives a control pressure from a control source. A second pilot controller receives the control pressure from the control source and provides added pressure. An inspirator receives the added pressure from the second pilot controller and generates a differential pressure. The differential pressure is used to control the pressure of the process fluid stream within the pressure regulator. The pressure regulator comprises a first chamber and a second chamber therein separated by a flexible element and a divider is disposed in the first chamber and operative to abut against the flexible element to divide the first chamber into separate spaces. Preferably, the pressure regulator is disposed such that the flexible element extends substantially in vertical direction and the divider extends substantially in horizontal direction.

    摘要翻译: 一种压力控制系统,用于控制在具有设置在过程流体流中的压力调节器的某个位置处的工艺流体流的压力,工艺流体流通过该压力调节器流动。 第一先导控制器感测该位置处的过程流体的压力并从控制源接收控制压力。 第二控制控制器从控制源接收控制压力并提供增加的压力。 启动器从第二先导控制器接收增加的压力并产生压差。 压差用于控制压力调节器内过程流体流的压力。 压力调节器包括在其中由柔性元件隔开的第一腔室和第二腔室,并且分隔器设置在第一腔室中并且可操作地抵靠柔性元件以将第一腔室分隔成单独的空间。 优选地,压力调节器设置成使得柔性元件基本上在垂直方向上延伸,并且分隔件基本上在水平方向上延伸。