Two-stage evaporator unit
    3.
    发明授权
    Two-stage evaporator unit 失效
    两级蒸发器单元

    公开(公告)号:US5823252A

    公开(公告)日:1998-10-20

    申请号:US508660

    申请日:1995-07-28

    摘要: A two-stage evaporator unit converts a liquid reactant mass flow adjustable as a function of a load presetting into a gaseous reactant mass flow. The liquid reactant mass flow is at least partially evaporated in the first stage by a heat-exchange medium, and, if appropriate is completely evaporated and subsequently superheated in the second stage. The evaporator unit is formed by the alternating stacking one on the other of foils having heat-exchange channels and by foils having reaction channels that, in each case, have at least one first and one second stage integrated in one foil. The first stage is configured as a channel with a minimized cross-sectional area which is directly connected to the inflow conduit. The first stage is operated at high coefficients of heat transmission. The total cross-section of the reaction channels in the second stage increases in the flow direction.

    摘要翻译: 两级蒸发器单元将可调节的液体反应物质量流转换为预设为气态反应物质量流的负载的函数。 液体反应物质量流在第一阶段通过热交换介质至少部分蒸发,如果合适,则在第二阶段完全蒸发并随后过热。 蒸发器单元通过在具有热交换通道的箔的另一个上交替堆叠而形成,并且具有反应通道的箔,每个反应通道在每种情况下具有集成在一个箔中的至少一个第一和第二级。 第一级被配置为具有与流入管道直接连接的最小横截面积的通道。 第一阶段运行在高传热系数。 第二阶段反应通道的总横截面在流动方向上增加。