Self-cleaning slurry metering valve
    1.
    发明授权
    Self-cleaning slurry metering valve 失效
    自清淤浆计量阀

    公开(公告)号:US5357995A

    公开(公告)日:1994-10-25

    申请号:US32871

    申请日:1993-03-18

    摘要: A valve for metering a slurry includes a primary flow path for directing a continual flow of slurry through the valve, a valve stem which extends through the primary flow path and engages a passage in a valve seat for metering a portion of slurry passing through the primary flow path out through a second outlet in the valve. A portion of the valve stem which engages the valve seat passage is cut-away and when placed in communication with the primary flow path allows the flushing of accumulated solids through the valve seat passage to avoid persistent plugging of the valve.

    摘要翻译: 用于计量浆料的阀包括用于引导浆料连续流过所述阀的主流路径,阀杆,其延伸穿过所述主流动路径并且与阀座中的通道接合,用于计量通过所述主流体的浆料的一部分 流动通道通过阀门中的第二个出口。 与阀座通道接合的阀杆的一部分被切除,并且当与主流路连通时允许通过阀座通道冲洗积聚的固体以避免阀的持续堵塞。

    Sample valve
    2.
    发明授权
    Sample valve 失效
    采样阀

    公开(公告)号:US5370146A

    公开(公告)日:1994-12-06

    申请号:US32875

    申请日:1993-03-18

    摘要: A valve for obtaining a sample from a continuous flow of fluid includes a primary flow path for directing a continual flow of the fluid through the valve, a valve stem which engages a passage in a valve seat for metering a sample of fluid passing through the primary flow path out through a separate outlet passage in the valve. The valve further includes a passage separate from the primary flow path for injecting a purge gas into the sample outlet passage to remove any sample fluid contained in the outlet passage after the sample valve has been closed and before the sample container is taken off-line so as to avoid atmospheric emissions of the sample fluid.

    摘要翻译: 用于从连续的流体流中获得样品的阀包括用于引导流体连续流过阀的主流路,与阀座中的通道接合的阀杆,用于计量通过主流体的流体样品 流通通过阀门中的独立出口通道。 阀还包括与主流路分开的通道,用于将样品气体注入到样品出口通道中,以在样品阀关闭之后并且在样品容器离线之前除去包含在出口通道中的任何样品流体 以避免样品流体的大气排放。

    Metering valve and new use thereof
    3.
    发明授权
    Metering valve and new use thereof 失效
    计量阀及其新用途

    公开(公告)号:US5417245A

    公开(公告)日:1995-05-23

    申请号:US032888

    申请日:1993-03-18

    IPC分类号: F16K1/38 F16K1/52 F16K1/02

    摘要: A novel metering valve is used to split the streams in which a continuous fluid stream passes unregulated through the valve along a primary flow path. A second stream is formed by passing a small portion of the fluid in the primary flow path through a passage in a valve seat. The fluid passing through the valve seat is precisely metered by a valve stem which engages the valve seat passage to control the amount of fluid diverted from the primary flow path. Both fluid from the unregulated primary flow path and through the metered flow path flow simultaneously from the valve. The metering valve of the invention has particular use in processes for dividing a condensed distillate stream into a product stream and a reflux stream.

    摘要翻译: 一种新型的计量阀用于将连续的流体流沿着主要流动路径分离通过阀未流过的流。 通过使主流路中的一小部分流体通过阀座中的通道而形成第二流。 通过阀座的流体由阀杆精确地计量,该阀杆接合阀座通道以控制从主流路转向的流体的量。 来自未调节的主流动路径和通过计量流动路径的两种流体同时从阀流动。 本发明的计量阀特别用于将冷凝馏分物流分离成产物流和回流物的方法。