The utility model relates to a novel hydraulic pulse generator. Including a tubular body, the upper part of the inner cavity of the tubular body is provided with a guide fluid, the lower end of the guide fluid is provided with an impeller seat, the lower part of the impeller seat is provided with a self-excited oscillating nozzle, the impeller shaft and impeller are eccentrically installed in the impeller seat, the guide fluid inner cavity is provided with a drainage wall to guide the fluid in the inner cavity of the tubular body to one side of the outer edge of the impeller, the drainage wall is provided with a drainage sleeve, and the inner cavity of the self The inner cavity of the body is provided with an inner shell, which is located above the guide fluid. The inner wall of the inner shell is in a centrally symmetrical wave shape. The inner shell is provided with a screw, and an annulus is arranged between the screw and the inner wall of the inner shell to drive the screw to rotate when the fluid passes through. A turntable is arranged between the guide fluid and the inner shell. The bottom wall of the turntable is provided with a drain hole, and the lower end of the screw and the center of the turntable. Fixed connection. The utility model has the advantages of simple structure, strong erosion resistance, effective reduction of the influence of supporting pressure phenomenon, and prolonged service life.
【技术实现步骤摘要】
一种新型水力脉冲发生器
本技术涉及一种新型水力脉冲发生器。
技术介绍
随着油田钻井勘探的深度越来越深,沿程水力损耗增大,井底钻头可用水马力下降,水力破岩、清岩的能力也随之减弱,造成深井钻井速度下降,因此,如何有效的提高机械钻速成为待解决的问题。目前,采用较多的是水力脉冲复合钻井技术,与钻头配套一冲脉射流提速工件,一定程度的提高了破岩效率。随着定向井斜度的增大,托压现象给钻井带来了很大影响,摩擦阻力增大,钻进困难,现有的水力脉冲发生器基本为一体式结构,易损坏部件不可更换,使用寿命短。
技术实现思路
针对上述缺陷,本技术的目的在于提供一种结构简单,部件损坏后可更换,抗冲蚀能力强,有效降低托压现象影响,延长使用寿命的一种新型水力脉冲发生器。为此本技术所采用的技术方案是:包括管状本体,所述管状本体内腔上部设有导流体,所述导流体下端设有叶轮座,所述叶轮座下方设有自激振荡喷嘴,所述叶轮座内偏心装有叶轮轴和叶轮,所述导流体内腔设有将管状本体内腔内流体引向叶轮一侧外缘的引流壁,所述引流壁上设有引流套,所述自激振荡喷嘴的内腔设有内套,所述管状本体内腔设有内壳体,所述内壳体位于导流体上方,所述内壳体的内壁呈中心对称的波浪形,内壳体内设有螺杆,螺杆与内壳体的内壁之间设有环空,用于流体通过时驱动螺杆转动,导流体与内壳体之间设有转盘,所述转盘的底壁上设有泄流孔,螺杆下端与转盘中心固定连接。作为上述技术方案的进一步改进,所述导流体、叶轮座、自激振荡喷嘴和内壳体分别与管状本体之间设有若干密封元件。作为上述技术方案的进一步改进,所述管状本体的上端为进口端,管状本体的下端为出口端,进口端和出口端内 ...
【技术保护点】
1.一种新型水力脉冲发生器,其特征在于,包括管状本体,所述管状本体内腔上部设有导流体,所述导流体下端设有叶轮座,所述叶轮座下方设有自激振荡喷嘴,所述叶轮座内偏心装有叶轮轴和叶轮,所述导流体内腔设有将管状本体内腔内流体引向叶轮一侧外缘的引流壁,所述引流壁上设有引流套,所述自激振荡喷嘴的内腔设有内套,所述管状本体内腔设有内壳体,所述内壳体位于导流体上方,所述内壳体的内壁呈中心对称的波浪形,内壳体内设有螺杆,螺杆与内壳体的内壁之间设有环空,用于流体通过时驱动螺杆转动,导流体与内壳体之间设有转盘,所述转盘的底壁上设有泄流孔,螺杆下端与转盘中心固定连接。
【技术特征摘要】
1.一种新型水力脉冲发生器,其特征在于,包括管状本体,所述管状本体内腔上部设有导流体,所述导流体下端设有叶轮座,所述叶轮座下方设有自激振荡喷嘴,所述叶轮座内偏心装有叶轮轴和叶轮,所述导流体内腔设有将管状本体内腔内流体引向叶轮一侧外缘的引流壁,所述引流壁上设有引流套,所述自激振荡喷嘴的内腔设有内套,所述管状本体内腔设有内壳体,所述内壳体位于导流体上方,所述内壳体的内壁呈中心对称的波浪形,内壳体内设有螺杆,螺杆与内壳体的内壁之间设有环空,用于流体通过时驱动螺杆转动,导流体与内壳...
【专利技术属性】
技术研发人员:管序荣,李根生,冯业文,黄中伟,周永军,史怀忠,孔飞,焦峰,
申请(专利权)人:江苏博际喷雾系统股份有限公司,
类型:新型
国别省市:江苏,32
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