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406 条记录 (耗时 0.014 秒)

    LANDFILL WELL LIQUID LEVEL CONTROL PUMP
    82.
    发明公开
    LANDFILL WELL LIQUID LEVEL CONTROL PUMP 审中-公开

    公开(公告)号：EP3108143A4

    公开(公告)日：2017-10-18

    申请号：EP15749523

    申请日：2015-02-16

    申请人： Q E D ENV SYSTEMS INC

    发明人： RAMIREZ ANTONIO U ,  SIMPSON DAVID D

    IPC分类号： F04D13/08 ,  F04D13/10 ,  F04D29/00

    CPC分类号： E21B47/042 ,  E21B43/121 ,  F04F1/06 ,  F04F1/08

    摘要： A liquid level control pump especially well adapted for use in landfill wells is disclosed. The pump makes use of a pump casing, a discharge tube, a control rod, first and second check valves, a float and a pivoting lever assembly for controlling the application of a pressurized fluid from an external pressurized fluid source. In one aspect the float may include a through slot which allows the control rod to pass therethrough and which helps to reduce the chance of the float hanging due to an accumulation of solids between the control rod and the float. In another aspect a removable and replaceable discharge tube sleeve may be included.

    GAS LIFT NOZZLE VALVE
    84.
    发明授权
    GAS LIFT NOZZLE VALVE 有权
    GASAUFSTIEGS-DÜSENVENTIL

    公开(公告)号：EP2455579B1

    公开(公告)日：2017-05-03

    申请号：EP10799301

    申请日：2010-05-13

    申请人： PETROLEO BRASILEIRO S A - PETROBRAS

    发明人： RESENDE DE ALMEIDA ALCINO

    IPC分类号： E21B34/06 ,  E21B43/12

    CPC分类号： E21B43/123 ,  E21B43/121 ,  E21B43/122 ,  Y10T137/2934

    摘要： The present invention relates to the design of a nozzle valve (GL) for gas lifting that can be used in place of conventional orifice valves (VO). The gas lift nozzle valve (GL) according to the present invention has a body (1) with admission orifices (2), and, immediately below these, a slight recess (3) in the internal diameter of the body where a convergent nozzle (4) is fitted to regulate the gas flow passing through the inside of the nozzle valve (GL) towards the outlet (5) of the latter.

    摘要翻译： 本发明涉及用于气体提升的喷嘴阀（GL）的设计，其可以用于代替传统的孔阀（VO）。 根据本发明的气举喷嘴阀（GL）具有带有进入孔（2）的主体（1），并且在其正下方在主体的内径处具有稍微的凹部（3），其中会聚喷嘴 4）适于调节通过喷嘴阀（GL）内部的气体流向后者的出口（5）。

    PERISTALTIC SUBMERSIBLE PUMP
    90.
    发明公开
    PERISTALTIC SUBMERSIBLE PUMP 审中-公开
    蠕动潜水电泵

    公开(公告)号：EP3052805A1

    公开(公告)日：2016-08-10

    申请号：EP14778035.7

    申请日：2014-09-22

    申请人： Saudi Arabian Oil Company

    发明人： LASTRA, Rafael

    IPC分类号： F04B43/10 ,  F04B43/113

    CPC分类号： F04B43/12 ,  E21B43/121 ,  E21B43/128 ,  F04B43/09 ,  F04B43/095 ,  F04B43/10 ,  F04B43/1133 ,  F04B43/1136 ,  F04B47/00 ,  F04B47/02 ,  F04B47/04

    摘要： A system for displacing fluid inside of a tubular member includes at least one peristaltic pump. Each peristaltic pump includes an elongated core member with a longitudinal axis located within the tubular member. A flexible member surrounds, and is concentric to, the elongated core member. The flexible member has a plurality of circular bands disposed along a length of the flexible member, each circular band being moveable between a contracted condition with a minimal radius and an expanded condition with a maximal radius. An outer membrane covers the circular bands, forming a first fluid cavity between an outer surface of the outer membrane and an inner surface of the tubular member. The outer membrane is operable to generate peristaltic waves in the first fluid cavity by selectively moving each circular band between the contracted condition and the expanded condition.