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32 条记录 (耗时 0.01 秒)

    Automatic centrifugal pump primer
    1.
    发明授权
    Automatic centrifugal pump primer 失效
    自动离心泵

    公开(公告)号：US3591316A

    公开(公告)日：1971-07-06

    申请号：US3591316D

    申请日：1969-02-26

    申请人： ROBERT J PICCIRILLI

    发明人： PICCIRILLI ROBERT J

    IPC分类号： F04D9/06 ,  F04B17/00 ,  F04B21/00 ,  F04B35/00

    CPC分类号： F04D9/065

    摘要： A valve assembly connected in series between a source of vacuum pressure and the intake port of a centrifugal pump. The valve assembly includes a float chamber and float therein for monitoring the passage of fluid through the pump. When the pump ceases to operate upon fluid and requires priming, the float in the float chamber causes communication between the inlet port of the pump and the source of vacuum pressure thereby effecting priming. The present invention further includes an inlet hole in the float chamber which is selectably opened to terminate vacuum in said chamber and allowing air to enter, causing any fluid buildup to be removed by centrifugal pump vacuum, restoring the chamber to ready-prime position automatically. Further, redundant check valve means are provided for insuring the prevention of fluid flow from the float chamber to the vacuum source.

    Debris trap for capturing debris flowing in a stream of liquid and priming assembly for a pump
    5.
    发明授权
    Debris trap for capturing debris flowing in a stream of liquid and priming assembly for a pump 有权

    公开(公告)号：US11649835B2

    公开(公告)日：2023-05-16

    申请号：US17708563

    申请日：2022-03-30

    申请人： Sulzer Management AG

    发明人： Kai Haime ,  Toni Heikkilä

    IPC分类号： F04D9/04 ,  F04D29/70 ,  F04D9/06 ,  F04D29/42

    CPC分类号： F04D29/708 ,  F04D9/046 ,  F04D9/065 ,  F04D29/4293

    摘要： A debris trap for capturing debris flowing in a stream of liquid, the debris trap includes a housing, a fluid inlet channel in connection with a space in the housing, a fluid outlet channel in connection with the space, the fluid outlet channel comprising a fluid outlet port, a float member, a guide element configured to guide movement of the float member when a liquid level in the space changes when in use, a stopper in connection with the fluid outlet port configured to stop the movement of the float member when the liquid level in the space raises, the fluid outlet port which, when the float member is against the stopper, remains partially open and the float member, when brought against the stopper, form a fluid communication path with a reduced area, which restricts the size of the debris capable of flowing through the outlet port.

    Arrangement for facilitating the start-up of not self-priming centrifugal pumps
    6.
    发明授权
    Arrangement for facilitating the start-up of not self-priming centrifugal pumps 失效
    无自吸离心泵启动的安排

    公开(公告)号：US4623302A

    公开(公告)日：1986-11-18

    申请号：US789943

    申请日：1985-10-21

    申请人： Horst Zeh

    发明人： Horst Zeh

    IPC分类号： F04D7/08 ,  F04D9/06

    CPC分类号： F04D9/065 ,  F04D7/08

    摘要： Arrangement for facilitating the start-up of not self-priming centrifugal mps for the pumping of radioactive liquids in a nuclear fuel reprocessing plant wherein radioactive liquid is pumped from a first to a second container through the container's top by means of transfer piping which includes a centrifugal pump having its suction side in communication with one container and its discharge side connected to a supply pipe leading to the other container. The supply pipe includes a pressurized air operated jet pump adapted to lift, during start-up, liquid from the container into the centrifugal pump which is then operated to pump the liquid from the one container to the other through the jet pump.

    摘要翻译： 用于促进启动不是自吸式离心泵的核燃料后处理装置中的放射性液体的启动的装置，其中放射性液体通过输送管道从第一容器的顶部泵送到容器的顶部，其中包括 离心泵的吸入侧与一个容器连通，其排出侧连接到通向另一容器的供给管。 供应管包括加压空气操作的喷射泵，其适于在启动期间将液体从容器提升到离心泵中，然后操作该离心泵将液体从一个容器泵送到另一个通过喷射泵。

    barton
    9.
    发明授权
    barton 失效

    公开(公告)号：US1551362A

    公开(公告)日：1925-08-25

    申请号：US1551362D

    IPC分类号： F04D9/06

    CPC分类号： F04D9/065