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    • 5. 发明授权
    • Pumping or multiphase compression device and its use
    • 泵或多相压缩装置及其用途
    • US5375976A
    • 1994-12-27
    • US86887
    • 1993-07-07
    • Marcel Arnaudeau
    • Marcel Arnaudeau
    • F04D3/02F04D29/18F04D31/00F04D7/00F04D3/00
    • F04D31/00F04D29/181F04D3/02Y10S416/02
    • The present invention relates to a device to compress a multiphase fluid such as petroleum effluent comprising a liquid phase and a gaseous phase and a method to use the device. The device comprises a housing (1), an impeller having an inlet section and an outlet section. The impeller comprises an axisymmetric hub (28) with an axis Ox and a number n of blades rotating around the axis. The blades have a leading edge (C1, C2) and a trailing edge (C'1, C'2). The fluid enters the impeller va the inlet section (41) and leaves via the outlet section (42). The axis is orientated in the direction of advance of the fluid. The number of rotating blades (29, 30) is equal to or greater than 2. At least one channel or passage is defined by two successive blades (29, 30) whose orthoradial section S(x) is of the form, within 5% and preferably within less than 3%:S(x)=ax.sup.2 +b(c-x.sup.2).sup.1/2 +don at least one portion of its length. The one portion is between two orthoradial lanes with the variable x corresponding to the absciss along the axis between points x.sub.1 and x.sub.2 and having an origin corresponding approximately to the radial plane passing through the leading edge of the blades with the planes defining the portion and a, b, c and d being parameters.
    • 本发明涉及一种用于压缩多相流体的装置,例如包含液相和气相的石油流出物以及使用该装置的方法。 该装置包括壳体(1),具有入口部分和出口部分的叶轮。 叶轮包括具有轴线Ox的轴对称轮毂(28),并且绕轴线旋转的n个叶片。 叶片具有前缘(C1,C2)和后缘(C'1,C'2)。 流体通过入口部分(41)进入叶轮,并经由出口部分(42)离开。 轴线在流体前进方向上定向。 旋转叶片(29,30)的数量等于或大于2.至少一个通道或通道由两个连续的叶片(29,30)限定,其直立部分S(x)的形状在5% 并且优选在其长度的至少一部分上小于3%:S(x)= ax2 + b(c-x2)1/2 + d。 一部分在两个斜面通道之间,其中变量x对应于沿着点x1和x2之间的轴线的横坐标,并且具有大致对应于穿过叶片的前缘的径向平面的原点,其中平面限定该部分, ,b,c和d为参数。