Mini-tube air cooled industrial steam condenser

    公开(公告)号:US10024600B2

    公开(公告)日:2018-07-17

    申请号:US15624587

    申请日:2017-06-15

    Applicant: Evapco, Inc.

    Abstract: Large scale field erected air cooled industrial steam condenser having 10 heat exchanger bundles per cell arranged in five pairs in a V-shape, each heat exchanger bundle having four primary heat exchangers and four secondary heat exchangers in which each secondary heat exchanger is paired with a single primary heat exchanger. Four primary condensers are arranged such that the tubes are horizontal, while the inlet steam manifolds at one end of the tubes are perpendicular to the primary condenser tubes, i.e., parallel to the transverse axis of the bundle. Steam enters the small inlet steam manifolds from below. Cross-sectional dimensions of the tubes are 200 mm wide with a cross-section height of less than 10 mm with fins that are 10 mm in height, arranged at 9 to 12 fins per inch.

    METHOD AND APPARATUS FOR MANUFACTURING ALUMINUM ALLOY STRIP FOR LITHOGRAPHIC PRINTING PLATES
    2.
    发明申请
    METHOD AND APPARATUS FOR MANUFACTURING ALUMINUM ALLOY STRIP FOR LITHOGRAPHIC PRINTING PLATES 有权
    用于制造平版印刷板的铝合金条的方法和装置

    公开(公告)号:US20090004044A1

    公开(公告)日:2009-01-01

    申请号:US12138491

    申请日:2008-06-13

    Abstract: Disclosed is a method of manufacturing, by a continuous casting process, aluminum alloy strip for use in the production of supports for lithographic printing plates, comprising the step of passing an aluminum melt successively through a filtering means, a launder connected to the filtering means, a liquid level controlling means connected to the launder, and a melt feed nozzle connected to the liquid level controlling means, wherein the aluminum melt is obtained by melting an aluminum starting material, then adding to and melting in the molten aluminum starting material a titanium and boron-containing aluminum alloy, and the time t in seconds required for the aluminum melt to pass through the launder satisfies the following condition (1): t≧270×1.2×D ,   (1) where D is the depth in meters of the melt in the launder.The method is able to prevent the formation of black streaks even when casting is carried out for an extended period of time.

    Abstract translation: 公开了一种通过连续铸造方法制造用于生产平版印刷版的支撑体的铝合金条,其包括使铝熔体连续通过过滤装置,连接到过滤装置的流槽, 连接到流槽的液位控制装置和连接到液位控制装置的熔体进料喷嘴,其中铝熔体通过熔化铝原料获得,然后在熔融铝原料中加入和熔化钛和 含硼铝合金,铝熔体通过流槽所需的时间t满足以下条件(1):<?在线公式描述=“在线公式”end =“lead” ?> t> = 270x1.2xD,(1)<?in-line-formula description =“In-line Formulas”end =“tail”?>其中D是流体中熔体的米深。 该方法即使在长时间进行铸造时也能够防止形成黑色条纹。

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