CN101235829B - Oil-submersible pump used gas-liquid mixer - Google Patents

Oil-submersible pump used gas-liquid mixer Download PDF

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Publication number
CN101235829B
CN101235829B CN 200810101058 CN200810101058A CN101235829B CN 101235829 B CN101235829 B CN 101235829B CN 200810101058 CN200810101058 CN 200810101058 CN 200810101058 A CN200810101058 A CN 200810101058A CN 101235829 B CN101235829 B CN 101235829B
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China
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guide wheel
shaft
gas
impeller
submersible pump
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CN 200810101058
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Chinese (zh)
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CN101235829A (en
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李伟
李成见
管虹翔
纵封臣
齐桃
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中国海洋石油总公司;中海石油研究中心
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Priority to CN 200810101058 priority Critical patent/CN101235829B/en
Publication of CN101235829A publication Critical patent/CN101235829A/en
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Abstract

The invention relates to an air-water mixer for a submersible pump, which is characterized in that the air-water mixer comprises a shell, wherein at least a group of based units which comprise guide wheels and impellers are arranged in the shell, the guide wheels and the impellers are pierced on a same pump shaft, the outer wall of the guide wheel is fixedly connected in the shell, the outer wallis of a hollow bucket shape, the output end of the shell is equipped with a plurality of deflectors, the outer edge of the deflector is fixed on the outer wall, the inner edge end is fixed on a shaftsleeve of the guide wheel, and the shaft sleeve of the guide wheel is sleeved on the pump shaft with gaps. The impellers are arranged in a guide wheel cavity, which comprises the shaft sleeve of the guide wheel and 3-5 blades which are arranged on the shaft sleeve of the guide wheel in a radial direction, the shaft sleeve of the guide wheel is fixedly sleeved on the pump shaft, each blade is equipped with a plurality of perforations, the aperture is orderly increased from inner portion to the outer portion, and the outermost row is a half perforation. The air-water mixer has simple structure,low making cost, convenient dismounting, and is capable of being widely used to develop oilfield.

Description

一种潜油泵用气液混合器 One kind of submersible pump with liquid mixer

技术领域 FIELD

[0001] 本发明涉及一种气液混合装置,特别是关于一种潜油泵用气液混合器。 [0001] The present invention relates to a gas-liquid mixing device, particularly to a submersible pump with gas-liquid mixer.

背景技术 Background technique

[0002] 在石油开采过程中往往会存在着伴生气,电潜泵在石油开采过程中承担着将石油在井内增压,举升至地面的作用,因此伴生气过多会使电潜泵的特性变差。 [0002] In the oil extraction process, often there is associated gas, electric submersible pump in the well bear the pressurized oil, lifted to the ground role in the oil extraction process, so associated gas too much can make the electric submersible pump characteristic deteriorates. 根据使用经验, 泵性能的恶化程度与吸入口处含气量有密切的关系,含气量过高时,电潜泵性能急剧恶化, 并且会发生气锁、气振等现象,影响电泵的使用。 According to experience, the degree of deterioration of the pump performance to the suction inlet gas content are closely related, when the gas content is too high, electric submersible pump performance deteriorated sharply, and the phenomenon of air locks, gas and other vibration will occur, affect the use of electric pumps.

[0003] 目前使用的电潜泵,对于高含气的油井, 一般采取加深泵挂深度及使用气体分离器的办法。 [0003] ESP currently used for high gas wells, in general approach used to deepen the depth of the pump linked to the gas separator. 加深泵挂深度,利用深处压力高,气体能够被更大程度压縮的办法,降低电潜泵吸入口处的含气率,从而使电潜泵能够顺利运转。 Deepen pump setting depth, the depths of the use of high pressure, the compressed gas can be a greater degree of approach to reduce electric submersible pumping rate at the entrance of the gas, so that the electric submersible pump running smoothly. 使用气体分离器,能够将部分游离气从产液中脱离,排到油套环空当中,从而降低电潜泵吸入口处的含气率,使电潜泵能够顺利运转。 A gas separator, capable of departing from the portion free from the product gas mixture, which is discharged the oil casing annulus, thereby reducing gas suction inlet of the ESP, ESP enable running smoothly. 但是上述加深泵挂深度的办法具有很大的局限性,并且电泵下入深度过深,需要过长的电缆,使成本增加;而使用气体分离器的办法,其适用范围有限,不能应用在含气过高的油井中,并且气体被分离出去,也不能再利用气体对产液的举升能力,是一种天然能量的浪费。 However, the above-described pump setting depth deeper approach has serious limitations, the pump and the depth is too deep, an excessively long cable, cost increase; the use of the gas separator way, its scope is limited, can not be applied high gas wells, and the gas is separated off, can no longer lift with gas producing ability liquid is a waste of natural energy.

[0004] 根据国外的实验发现,电泵运行过程中靠近吸入口处的叶片受影响最大,性能最容易恶化,越靠后,性能越好。 [0004] According to foreign It was found that the process leaves the running pump suction port near the most affected, the performance most likely to worsen, after the more reliable, the better the performance. 分析认为,靠近吸入口的数级叶片对泵内流体起到了搅拌作用,气体与液体的混合程度越均匀,气体对泵的冲击影响也就越小。 Analysis, the number of stages near the inlet port of the vane pump fluid played stirring, more uniform degree of mixing gas and liquid, the smaller shocks gas pump. 美国一家公司研制了一种气体处理装置,其核心是利用轴流道泵过流面积大不怕气锁的特点,利用优化设计的流道, 一方面增加流体的压力压縮气体体积, 一方面能够对流体进行混合,达到保护电泵的目的。 US company developed a gas treatment device, the core is axial flow pump flow passage area larger afraid airlock characteristics, optimal design of the flow paths, on the one hand increase the pressure of the fluid volume of the compressed gas, on the one hand can be the fluid is mixed, as to protect the electric pump. 但是这一装置结构复杂,售价较高,没有大量的被应用。 However, this device structure is complex, higher prices, is not a lot of applications.

发明内容 SUMMARY

[0005] 针对上述问题,本发明的目的是提供一种结构简单,能使气液混合均匀的潜油泵用气液混合器。 [0005] In view of the above problems, an object of the present invention is to provide a simple, uniform gas-liquid mixture can submersible pump with gas-liquid mixer.

[0006] 为实现上述目的,本发明采取以下技术方案:一种潜油泵用气液混合器,其特征在 [0006] To achieve the above object, the present invention adopts the following technical solutions: A submersible pump with gas-liquid mixer, characterized in that

于:它包括一外壳,在所述外壳内设置至少一组由导轮和叶轮组合成的基本单元,所述导轮 In: comprising a housing, at least one set is provided by a combination of the base unit and the guide wheel into the impeller within the housing, the guide wheel

和叶轮穿接在同一泵轴上,所述导轮呈中空桶形的外壁固定连接在所述外壳内,所述外壁 And connected to the same through the impeller shaft, the guide wheel hollow barrel is fixed within the housing connected to the outer wall, the outer wall

出口端设置有若干导流片,所述导流片的外缘端固定到所述外壁上,内缘端固定到一导轮 Outlet end is provided with a plurality of baffles, the baffles of the edge end secured to the outer wall, the inner edge end fixed to a guide wheel

轴套上,所述导轮轴套有间隙地套设在所述泵轴上;所述叶轮设置在所述导轮空腔内,包括 The sleeve, the guide sleeve with clearance the axle sleeve provided on the pump shaft; impeller disposed in said cavity of said guide bye, comprising

一叶轮轴套和在所述叶轮轴套上径向布置的若干叶片,所述叶轮轴套固定套设在所述泵轴 An impeller hub and a plurality of vanes on said impeller shaft sleeve disposed radially, the impeller hub fixed to the shaft sleeve disposed

上,所述每一叶片上设置有若干穿孔。 On a number of perforations provided on each of said blades.

[0007] 所述穿孔沿径向设置为一排以上。 [0007] The perforations in the radial direction is set to more than one row.

[0008] 所述穿孔孔径从叶片根部到叶片边缘依次由小到大。 [0008] The perforation diameter progressively larger from the blade root to the blade edge.

[0009] 所述叶片边缘的穿孔为半孔。 The perforations [0009] edge of the blade is semi-holes. [0010] 所述每一排上各穿孔间距相等。 [0010] The pitch of the perforations of each row are equal. [0011] 所述叶片为3〜5片。 The [0011] blade of 3 to 5 sheets.

[0012] 本发明由于采取以上技术方案,其具有以下优点:1、本发明的主体由于只采用导轮和叶轮,结构简单,加工方便,造价低,所以具有经济价值。 [0012] As a result of the present invention, the above technical solution, which has the following advantages: 1, the present invention since the main guide wheel and the impeller using only a simple structure, easy processing, low cost, and therefore have economic value. 2、本发明由于在叶片上设置的穿孔内小外大,因此能够使气体被液体充分混合,使电潜泵运转顺利。 2, the present invention since the outer perforated small Ouchi provided on the blade, it is possible to sufficiently mix the liquid gas, the electric submersible pump running smoothly. 3、本发明由于在出口端设置导流片,使得高速运转的混合流体碰到后,部分动能转变为压力势能,从而能将气体进一步压縮,縮小气体体积的同时提高流体举升力。 3 Meanwhile, according to the present invention, since the guide vanes at the outlet end, such that the fluid mixture across the high-speed operation, part of the kinetic energy into potential pressure, whereby the gas can be further compressed, reduced volume of gas is increased lifting force fluid. 4、经过本发明处理后的混合流体,气液混合均匀,进入电泵后可以对电泵起到保护作用,并且气体的混入,可以降低原油的黏度及密度,能够提高泵效,因此可以广泛应用于油田开采作业中。 4, the mixed fluid passes through the treatment according to the present invention, the gas-liquid mixing, can play a protective role in pump into the pump, and the mixed gas can be reduced viscosity and density of the oil, the pump efficiency can be improved, it can be widely applied in oil exploration operations.

附图说明 BRIEF DESCRIPTION

[0013] 图1是本发明的一种多级串联组合示意图[0014] 图2是本发明导轮的剖视示意图[0015] 图3是图2的侧视示意图[0016] 图4是本发明叶轮的俯视示意图[0017] 图5是图4的前视示意图 [0013] FIG. 1 is a multi-level schematic view of a series combination of the present invention [0014] FIG. 2 is a schematic cross-sectional view of the guide wheel of the present invention [0015] FIG. 3 is a schematic side view of FIG. 2 [0016] FIG. 4 of the present invention is a schematic plan view of the impeller [0017] FIG. 5 is a front view of FIG. 4

具体实施方式 Detailed ways

[0018] 下面结合附图和实施例,对本发明进行详细的说明。 [0018] accompanying drawings and the following embodiments, the present invention will be described in detail.

[0019] 如图l所示,本发明包括一外壳l,在外壳l内至少设置一组由导轮2和叶轮3组合成的基本单元,根据工作需要,可以将多级导轮2和叶轮3的基本单元同向串联使用。 [0019] As shown in Fig L, L of the present invention comprises a housing, a base unit is provided at least one set of guide rollers 2 and a combination of the impeller within the housing 3 to L, according to the work needs, can be a multi-stage impeller and the guide wheel 2 with the use of the base unit 3 to the series. 导轮2和叶轮3都穿接在同一泵轴4上,然后通过法兰连接到潜油泵的吸入口下面(本图未示出)。 Guide wheel 2 and the impeller 3 connected to the same wear the pump shaft 4, and is connected to the suction port below submersible pump (not shown in this FIG.) Through the flange. 泵轴4可以为潜油泵的泵轴,也可以单独设置,通过联轴器与潜油泵的泵轴连接。 4 may be a pump shaft of the pump shaft submersible pump may be separately provided, and connected via a coupling shaft submersible pump. [0020] 如图1、图2、图3所示,导轮2具有一中空桶形外壁21,在导轮外壁21出口处设置有若干导流片22,导流片22的外缘端固定到导轮外壁21上,内缘端固定到一导轮轴套23 上。 [0020] As shown in FIG 1, FIG 2, FIG 3, the guide wheel 2 having a hollow barrel outer wall 21, outer wall 22 has a plurality of baffles 21 provided at the outlet of the guide wheel, the outer edge 22 of the end of the fixed guide vanes guide wheel 21 to the outer wall, the inner end edge of a guide shaft secured to the sleeve 23. 装配时,导轮外壁21通过过盈配合连接在外壳1上,导轮轴套23有间隙地套设在泵轴4上。 When assembled, the outer wall of the guide wheel 21 fitted on the housing 1 is connected by interference, the guide shaft 23 with clearance sleeve sleeved on the shaft 4.

[0021] 如图1、图4、图5所示,叶轮3设置在导轮2内,包括一叶轮轴套31和在叶轮轴套31上沿径向布置的3〜5片叶片32。 As shown in [0021] 1, 4, 5, wheel 3 is provided in the stator 2, an impeller comprising a hub 31 and three to five blades radially arranged along the sleeve 31 on the impeller 32. 叶轮轴套31固定套设在泵轴4上,固定连接方式可以是键连接,也可以是其它结构方式。 The impeller hub 31 is sleeved on the shaft 4, the fixed connection can be connected to a bond, it may be another way of configuration. 每片叶片32上从叶片根部向外都设置有数排穿孔, 每一排上各穿孔间都等距布置,穿孔的孔径从叶片根部向外是由小变大的,最靠近叶片根部的穿孔33为直径约4毫米的圆孔;中间位置的穿孔34为直径约8毫米的圆孔,靠近叶片边缘的穿孔35为直径约16毫米的半孔。 On each blade 32 are provided with several rows of perforations outwardly from the blade root of each row are equally spaced between the perforations, the perforation blade root outwardly from the aperture is from small to large, the perforations 33 closest to the blade root is a round hole about 4 mm in diameter; the perforations intermediate position 34 having a diameter of about 8 mm circular holes, perforations near the edge of the blade 35 is a semi-diameter of about 16 mm.

[0022] 上述实施例中,导轮外壁21、导流片22和导轮轴套23可以一体制造。 [0022] In the above embodiment, the outer wall of the guide wheel 21, guide plate 22 and the guide shaft sleeve 23 may be integrally manufactured.

[0023] 上述实施例中,叶片上的穿孔的大小是可以变化的,只要保证从叶片根部向外是 [0023] In the above embodiment, the size of perforations on the blades may be varied, as long as the blade root is outwardly

由小变大的;边缘的穿孔35也可以设置呈半圆孔、大半圆孔或小半圆孔。 From small to large; perforated edges 35 may be provided in a semi-circular, half circular or circular less than half.

[0024] 启动潜油泵时,气液混合流体首先进入本发明气液混合器,通过叶轮3对气液混 [0024] The submersible pump startup, the gas-liquid gas-liquid mixture fluid into the first mixer of the present invention, the gas-liquid mixed by the impeller 3

合流体形成高速搅动,随着叶轮3的转动,液体较重有被甩到外围的趋势,气体较轻有向轴 Fluid with a high velocity agitation, with the rotation of the impeller 3, the heavier liquid tends left to the periphery of the gas lighter has a shaft

根部集中的趋势,叶轮3上靠近叶片根部的穿孔33设计的较小,恰好不利于气体的穿过,中 Root concentration trends, the impeller 3 smaller perforations near the blade root 33 is designed, just not conducive to gas passing through, in

4间穿孔34适中,外围的穿孔35较大,恰好可以使液体快速穿过。 4-moderate perforation 34, the periphery of the perforation 35 larger, the liquid can just pass through quickly. 随着搅动的不断进行,根部的气体大部分被挤向外端,被液体包裹巻走,另一部分通过穿孔进入下一级腔体,经过叶轮3搅拌过的混合流体高速撞向导轮2的导流片22,流速放缓,动能部分转变为压力势能, 对气体产生一定的压縮。 With continuous agitation, the gas most of the root end is pushed outwards, are liquid inclusions Volume down, another portion enters a chamber through perforations, the impeller 3 via high fluid mixture stirred wizard guiding the striker wheel 2 flow sheet 22, slowing the flow rate, part of the kinetic energy into potential pressure, a certain compression of the gas. 混合流体进入下一级腔体内,同样又被下一级叶轮高速搅动,气体在极短的时间内,经历两次变向,大量的气体被液体包裹带走,由此达到较理想的混合效果。 Mixing a fluid into the chamber under the same again at a high speed impeller agitator, a gas in a very short time, subjected to two variants, a large amount of gas is carried away liquid inclusions, thereby achieving the ideal mixing . 经过本发明处理后的混合均匀的流体进入到潜油电泵的吸入口,由此对电泵起到保护作用。 After mixed fluid of the present invention after the processing proceeds to the submersible pump suction port, thereby pump protection.

Claims (5)

  1. 一种潜油泵用气液混合器,其特征在于:它包括一外壳,在所述外壳内设置至少一组由导轮和叶轮组合成的基本单元,所述导轮和叶轮穿接在同一泵轴上,所述导轮呈中空桶形的外壁固定连接在所述外壳内,所述外壁出口端设置有若干导流片,所述导流片的外缘端固定到所述外壁上,内缘端固定到一导轮轴套上,所述导轮轴套有间隙地套设在所述泵轴上;所述叶轮设置在所述导轮空腔内,包括一叶轮轴套和在所述叶轮轴套上径向布置的若干叶片,所述叶轮轴套固定套设在所述泵轴上,所述每一叶片上设置有若干穿孔;所述穿孔沿径向设置为一排以上,所述穿孔孔径从叶片根部到叶片边缘依次由小到大。 One kind of submersible pump with gas-liquid mixer, characterized in that: it comprises a housing provided with at least one set of a combination of the base unit and the guide wheel into the impeller within the housing, and the guide wheel connected to the same pump impeller wear shaft, the guide wheel hollow barrel-shaped outer wall is fixedly connected within the housing, the outlet end of the outer wall is provided with a plurality of baffles, an outer edge of the baffle is secured to the end of the outer wall, the inner edge end to a shaft guide sleeve, the guide sleeve with clearance the axle sleeve provided on the pump shaft; impeller disposed in said cavity of said guide bye, comprising an impeller in said impeller shaft sleeve and put a plurality of vanes radially arranged, fixed to said impeller shaft sleeve sleeved on said shaft, each of said plurality of blades is provided with perforations; the perforations radially set more than one row, the perforations aperture progressively larger from the blade root to the blade edge.
  2. 2. 如权利要求1所述的一种潜油泵用气液混合器,其特征在于:所述叶片边缘的穿孔为半孔。 2. An submersible pump according to claim 1 with gas-liquid mixer, characterized in that: the perforated edge of the blade is semi-holes.
  3. 3. 如权利要求1所述的一种潜油泵用气液混合器,其特征在于:所述每一排上各穿孔间距相等。 One kind of submersible pump according to claim 1 with gas-liquid mixer, characterized in that: the pitch of each row is equal to the perforations.
  4. 4. 如权利要求2所述的一种潜油泵用气液混合器,其特征在于:所述每一排上各穿孔间距相等。 4. An submersible pump according to claim 2 liquid mixer, characterized in that: the pitch of each row is equal to the perforations.
  5. 5. 如权利要求1或2或3或4所述的一种潜油泵用气液混合器,其特征在于:所述叶片为3〜5片。 5. A submersible pump as claimed in one kind of 1 or 2 or 3 or 4 with the gas-liquid mixer, characterized in that: said blade is 3 to 5 sheets.
CN 200810101058 2008-02-27 2008-02-27 Oil-submersible pump used gas-liquid mixer CN101235829B (en)

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CN102814722B (en) * 2012-08-27 2015-05-20 唐山市燕南制锹有限公司 Device for removing surface attachment of steel shovel

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US3630498A (en) 1968-07-31 1971-12-28 Namco Corp Apparatus for gasifying and degasifying a liquid
US4231974A (en) 1979-01-29 1980-11-04 General Signal Corporation Fluids mixing apparatus
CN2358984Y (en) 1999-02-05 2000-01-19 郭三福 Blade used in gas and liquid mixing agitator
CN1244136A (en) 1997-01-20 2000-02-09 味之素株式会社 Agitation blade
CN1765475A (en) 2004-10-29 2006-05-03 中国石油化工股份有限公司 Self air feeding type gas liquid mixing blade
EP1716917A1 (en) 2004-02-16 2006-11-02 Anemos Company Ltd. Mixing element and static fluid mixer using the same

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3630498A (en) 1968-07-31 1971-12-28 Namco Corp Apparatus for gasifying and degasifying a liquid
US4231974A (en) 1979-01-29 1980-11-04 General Signal Corporation Fluids mixing apparatus
CN1244136A (en) 1997-01-20 2000-02-09 味之素株式会社 Agitation blade
CN2358984Y (en) 1999-02-05 2000-01-19 郭三福 Blade used in gas and liquid mixing agitator
EP1716917A1 (en) 2004-02-16 2006-11-02 Anemos Company Ltd. Mixing element and static fluid mixer using the same
CN1765475A (en) 2004-10-29 2006-05-03 中国石油化工股份有限公司 Self air feeding type gas liquid mixing blade

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