WO2012139380A1 - 一种高能混合器清水控制装置以及高能混合器 - Google Patents

一种高能混合器清水控制装置以及高能混合器 Download PDF

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Publication number
WO2012139380A1
WO2012139380A1 PCT/CN2011/082411 CN2011082411W WO2012139380A1 WO 2012139380 A1 WO2012139380 A1 WO 2012139380A1 CN 2011082411 W CN2011082411 W CN 2011082411W WO 2012139380 A1 WO2012139380 A1 WO 2012139380A1
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Prior art keywords
shaft
rocker arm
hole
energy mixer
high energy
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PCT/CN2011/082411
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English (en)
French (fr)
Inventor
王�锋
李世奇
Original Assignee
烟台杰瑞石油装备技术有限公司
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Publication of WO2012139380A1 publication Critical patent/WO2012139380A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
    • B28C7/04—Supplying or proportioning the ingredients
    • B28C7/12—Supplying or proportioning liquid ingredients
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/313—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit
    • B01F25/3133—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit characterised by the specific design of the injector

Definitions

  • the present invention relates to a cementing device for oil and gas fields and a high-energy mixer for a mixing device, and more particularly to a high-energy mixer water control device and a high-energy mixer.
  • Oil and gas fields have strict requirements on the control of cement slurry density during cementing operations.
  • High-energy mixers are one of the core components of cementing equipment, and the mixing effect is directly related to cementing quality.
  • the traditional single-variable high-energy mixer that controls the flow of fresh water with a manual valve is operated by the operator to adjust the size of the valve.
  • the flow of fresh water can only be adjusted by the operator's experience and intuition, so it is difficult to ensure the density of the cement slurry.
  • fluctuations in cement slurry density may affect cementing quality and, in turn, affect oilfield production capacity.
  • cementing equipment with automatic mixing function has been widely used in oilfield cementing field, and the two-variable mixing system has gradually replaced the single-variable mixing system.
  • the two-variable mixing system has become the mainstream of the oilfield cementing industry.
  • the variable mixing system controls the flow of fresh water and dry powder at the same time to achieve a better mixing effect.
  • a high-energy mixer water control device comprising a mount, a linear actuator, a hinge shaft, a rocker arm, a lead screw, a manual crank handle, a threaded shaft and a valve stem, the upper portion of the mount is provided with a flange, and the high energy
  • the water pipe end flange of the mixer is fixedly connected to the flange, and the lower end portion and the middle portion of the mounting seat are respectively provided with a shaft hole, and the hinge shaft is inserted into the middle shaft hole of the mounting seat, and the linear actuator is equipped with
  • There is a fixing seat and two sides of the fixing seat are provided with a shaft, and the shaft is inserted into the shaft hole of the lower end of the mounting seat.
  • a shaft hole is disposed at a middle portion and both ends of the rocker arm, and an upper end of the rocker arm is hingedly connected to the valve stem, and a lower end of the rocker arm is hingedly connected with a push rod of the linear actuator.
  • the two ends of the threaded shaft are inserted into the middle hole of the rocker arm, and the middle of the threaded shaft is provided with a wire hole and is matched with the lead screw, and one end of the screw is fixed on the hinge shaft .
  • the linear actuator is an electric linear actuator.
  • the working principle of the invention is as follows: In the electric control state, the rocker arm forms a lever mechanism with the threaded shaft as a fulcrum. At this time, the push rod of the rocker arm and the linear actuator is connected as a force point, and the rocker arm and the valve stem are connected to the hinge as a reaction. The force point, when the push rod of the linear actuator moves and moves, drives the valve stem to make a linear motion, thereby accurately controlling the opening of the water valve.
  • the utility model has the beneficial effects that: the technical solution adopts a hinge connection on the connection structure of the rocker arm, the valve stem, the screw rod and the linear actuator to form a multi-link structure, thereby ensuring the valve stem when the linear actuator is pushed It is always linear and the movement structure is flexible.
  • the electric linear actuator can easily realize the automatic control of the feed amount, and the position of the valve stem can be precisely controlled by the electric linear actuator.
  • the software can be used to realize the mechanical valve opening.
  • the complex flow regulating plate structure avoids the corresponding defects caused by the flow regulating plate structure.
  • the present invention can also be modified as follows: a manual crank is disposed at one end of the lead screw, and a through hole is formed at the threaded shaft and the screw connection, the through hole penetrating the threaded shaft and the lead screw A pin shaft is provided in the through hole. This allows manual control of the valve stem. The pin also ensures the stability of the threaded shaft and the screw connection during motor control.
  • the rocker arm forms a lever mechanism with the linear actuator and the rocker connecting hinge as a fulcrum.
  • the screw is rotated by the manual crank, and the threaded shaft moves along the screw.
  • the threaded shaft acts as the point of force, and the rocker arm and the valve stem are connected to the hinge as a reaction point to achieve control of the wide rod position.
  • the beneficial effects of the improved solution are: when the electric linear actuator fails or in an emergency, the pin is directly pulled out, and the position of the valve stem can be controlled by a manual crank to realize manual control and electric control. Quickly switch. It can effectively avoid losses caused by untimely conversion.
  • the present invention also provides a high-energy mixer comprising the above-described fresh water control device, that is, the fresh water control device is fixedly connected to the end of the clean water pipe of the high-energy mixer through its mount to constitute a high-energy mixer.
  • FIG. 1 is a schematic structural view of a fresh water control device of the present invention
  • Figure 2 is a left side view of Figure 1;
  • Figure 3 is a cross-sectional view taken along line A-A of Figure 1;
  • Figure 4 is a cross-sectional view taken along line B-B of Figure 1;
  • Figure 5 is a schematic structural view of the mounting seat of Figure 1;
  • Figure 6 is a schematic illustration of a high energy mixer employing the fresh water control apparatus of the present invention.
  • a high-energy mixer water control device includes a mount 1, a shaft 2, a linear actuator 3, a hinge shaft 4, a lead screw 5, a threaded shaft 6, a manual crank 7, and a rocker arm.
  • the linear actuator 3 is provided with a fixing base 12, and the two sides of the fixing base 12 are disposed There is a shaft 2 which is inserted into the lower end shaft hole of the mount 1.
  • a shaft hole is disposed in a middle portion and both ends of the rocker arm 8.
  • the upper end of the rocker arm 8 is hingedly connected to the valve stem 9, and the lower end of the rocker arm 8 and the push rod 11 of the linear actuator
  • the two ends of the threaded shaft 6 are inserted into the middle hole of the rocker arm 8.
  • the threaded shaft 6 is connected to the lead screw 5 through a wire hole provided in the middle, and the lead screw 5 is connected. One end is fixed to the hinge shaft 6.
  • the linear actuator 3 in this embodiment employs an electric linear actuator.
  • the working principle of the invention is as follows: In the electric control state, the rocker arm 8 forms a lever mechanism with the threaded shaft 6 as a fulcrum. At this time, the rocker arm 8 and the linear actuator 3 are connected to the hinge as a force point, and the rocker arm 8 is connected with the valve stem 9. The hinge acts as a reaction point. When the push rod 11 of the linear actuator moves telescopically, the valve stem 9 is driven to perform linear motion, thereby accurately controlling the opening of the water valve.
  • the technical solution adopts a hinge connection on the connection structure of the rocker arm 8, the valve stem 9, the lead screw 5 and the linear actuator 3, a multi-link structure is formed, thereby ensuring that when the push rod 11 of the linear actuator is pushed
  • the valve stem 9 is always linearly moved, and the structure of the movement structure is flexible; in this embodiment, the electric linear actuator 3 can more conveniently realize the automatic control of the feed amount, and the position of the valve stem can be accurately controlled by the electric linear actuator 3.
  • the embodiment is equipped with software to realize nonlinear compensation for the opening degree of the mechanical valve, thereby accurately controlling the ratio of the clear water flow and the dry powder in the high-energy mixer, thereby ensuring the cement. Pulp density.
  • a manual crank 7 is disposed at one end of the screw, and a through hole is formed at a joint of the threaded shaft 6 and the lead screw 5, and the through hole penetrates the threaded shaft 6 and the lead screw 5 at the through hole
  • a pin 10 is provided in the middle. This allows manual control of the valve stem 9. The pin 10 also ensures the stability of the threaded shaft 6 to the lead screw 5 during motor control.
  • the working principle is as follows:
  • the rocker arm 8 is connected with the push rod 11 of the linear actuator 3 and the rocker arm 8 as a fulcrum to form a lever mechanism.
  • the screw 5 is rotated by the manual crank 7
  • the threaded shaft 6 moves along the lead screw 5, at which time the threaded shaft 6 acts as a force point, and the rocker arm 8 and the valve stem 9 are connected to the hinge as a reaction force point, and the valve stem 9 can be realized when the manual rocker 7 is swung clockwise or counterclockwise.
  • Push-pull control Push-pull control.
  • the present invention also provides a high-energy mixer using the above-described fresh water control device, and the specific solution is: fixing the mounting seat of the fresh water control device according to the present invention to the clean water of the high-energy mixer
  • the tube head flange of tube 13 is combined with a fresh water valve to form a clean water control system.
  • the clean water is controlled from the clean water pipe 1 3 inlet I through the clean water valve into the high-energy mixer cavity, and mixed with the cement fed from the inlet II of the dry powder pipe 14.
  • the fresh water control device of the present invention the clear water flow can be passed through the computer software. Achieving more precise control, including non-linear compensation of the mechanical valve opening, makes the mixing effect of the high-energy mixer better than the prior art, that is, the cement slurry density can better meet the use requirements.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Accessories For Mixers (AREA)
  • Transmission Devices (AREA)
  • Mechanically-Actuated Valves (AREA)

Description

说 明 书 一种高能混合器清水控制装置以及高能混合器 技术领域 本发明涉及油气田用固井设备及混浆设备高能混合器， 具体涉及一种 高能混合器清水控制装置以及高能混合器。 背景技术 油气田在进行固井作业过程中， 对水泥浆密度的控制有严格的要求， 高 能混合器作为固井设备的核心部件之一，其混浆效果的好坏直接关系到固井 质量。 传统的以手动阀门控制清水流量的单变量高能混合器， 是由操作人员 调节阀门大小来完成的， 只能凭操作人员的经验及直觉来调节清水流量， 因 此难于保证水泥浆密度。 而由于水泥浆密度的波动可能影响固井质量， 进而 会影响油田的产能。 目前具备自动混浆功能的固井设备在油田固井领域已广 泛应用， 且由双变量混浆系统逐渐替代单变量混浆系统， 双变量混浆系统已 成为油田固井行业的主流， 所谓双变量混浆系统就是对清水及干粉流量同时 进行控制， 以达到较好的混浆效果。
目前国内外双变量高能混合器清水控制机构大都采用液压驱动方式， 如 中国专利 CN 200620095469所公开的高能混合器就属这种双变量混合器方 案， 这类控制方式采用流量调节板结构控制水量， 虽然相对于手动控制有很 大进步， 但尚存在如下缺陷： 一是由于这种液压驱动方式， 受环境温度影响 较大， 及液压系统的不稳定性， 无法达到很精确的控制； 二是内部结构件多 而复杂， 清水喷射处密封面容易造成磨损， 混合器密封圈等易损件数量多， 给曰常维护和保养带来不便， 而且在冬季使用时其密封面进水容易冻住， 不 方便现场的操作使用；再是当驱动机构失灵时手动调整不能实现方便且较为 准确的控制。 发明内容 本发明的目的是提供一种工作稳定、 控制精确高的高能混合器清水控制 装置， 以解决上述现有方案的不足。
本发明解决上述技术问题的技术方案如下：
一种高能混合器清水控制装置， 包括安装座、 直线执行器、 铰链轴、 摇 臂、 丝杠、 手动摇柄、 螺纹轴及阀杆， 所述安装座的上部配有法兰， 并与高 能混合器的清水管端部法兰固定连接， 所述安装座的下端部和中部均设有轴 孔， 所述铰链轴插装在所述安装座的中部轴孔中， 所述直线执行器配有固定 座， 所述固定座的两侧设有轴， 所述轴插装在安装座的下端部轴孔中。
所述摇臂的中部和两端均设有轴孔， 所述摇臂的上端与所述阀杆采用铰 链连接， 所述摇臂的下端与所述直线执行器的推杆采用铰链连接， 所述螺纹 轴的两端插装于所述摇臂的中部孔中， 所述螺纹轴的中部设有丝孔并与所述 丝杠配套连接， 所述丝杠的一端固定在所述铰链轴上。
所述直线执行器是电动直线执行器。
本发明的工作原理是： 在电动控制状态下， 摇臂以螺纹轴作为支点形成 杠杆机构， 此时摇臂与直线执行器的推杆连接铰链作为作用力点， 摇臂与阀 杆连接铰链作为反作用力点， 当直线执行器的推杆伸缩移动时， 带动阀杆做 直线运动， 进而准确控制水阀开度。
本发明的有益效果是： 由于本技术方案在摇臂、 阀杆、 丝杠及直线执行 器的连接结构上采用了铰链连接， 形成多连杆结构， 从而在直线执行器推动 时能保证阀杆始终直线运动， 运动结构筒单灵活； 采用电动直线执行器可方 便的实现进给量的电脑自动控制， 并通过电动直线执行器精确控制阀杆的位 置， 同时方便采用软件来实现对机械阀门开度的非线性补偿， 进而精确控制 高能混合器中清水流量和干粉的配比， 从而保证了水泥浆密度； 由于本方案 能实现对阀杆的精确控制， 因此可以用筒单的阀门机构代替相对复杂的流量 调节板结构， 并避免了由流量调节板结构所带来的相应缺陷。 本发明还可作如下改进， 即在所述丝杠的一端设置手动摇柄， 在所述螺 纹轴和丝杠连接处设有通孔， 该通孔贯穿所述螺纹轴和丝杠， 在所述通孔中 设有销轴。 以此可实现阀杆的手动控制。 销轴也可以保证在电动控制时螺纹 轴与丝杆连接的稳固。
在手动控制时工作原理是： 摇臂以直线执行器与摇臂连接铰链作为支点 形成杠杆机构， 当拔出销轴后， 通过手动摇柄带动丝杠旋转， 螺纹轴沿丝杠 运动， 此时螺纹轴作为作用力点， 摇臂与阀杆连接铰链作为反作用力点， 以 实现对阔杆位置的控制。
所述改进方案的有益效果是： 当电动直线执行器发生故障或在紧急情况 下， 直接拔出所述销轴， 就可用手动摇柄控制阀杆位置， 实现手动控制和电 动控制两种方式间快速切换。 可有效避免因转换不及时而造成的损失。
本发明还提供了一种高能混合器， 包括以上所述的清水控制装置， 即将 该清水控制装置通过其安装座固定连接于高能混合器的清水管端部组成高能 混合器。
本发明一种高能混合器的有益效果是： 由于采用本发明所述的清水控制 装置， 能对清水流量实现较精确的控制， 使得高能混合器的混浆效果比现有 技术更优， 即水泥浆密度能更好的满足使用要求。 附图说明 图 1是本发明清水控制装置结构示意图；
图 2是图 1的左视图；
图 3是图 1中 A-A向剖面示意图；
图 4是图 1中 B-B向剖面示意图；
图 5是图 1中安装座结构示意图；
图 6是采用本发明清水控制装置的高能混合器示意图。
在图 1至图 6中， 1、 安装座， 2、 轴， 3、 直线执行器， 4、 铰链轴， 5、 丝杠， 6、 螺纹轴， 7、 手动摇柄， 8、 摇臂， 9、 阀杆， 10、 销轴， 11、 推杆， 12、 固定座， 1 3、 清水管， 14、 干粉管， I、 清水入口， II、 干粉入口。 具体实施方式
以下结合附图对本发明的原理和特征进行描述， 所举实例只用于解释本 发明， 并非用于限定本发明的范围。
如图 1-图 5所示， 一种高能混合器清水控制装置， 包括安装座 1、 轴 2、 直线执行器 3、 铰链轴 4、 丝杠 5、 螺纹轴 6、 手动摇柄 7、 摇臂 8、 阀杆 9、 销轴 10及固定座 12 , 所述安装座 1的上部配有法兰， 并与高能混合器的清 水管 1 3的端部法兰固定连接，所述安装座 1的下端部和中部均设有轴孔，所 述铰链轴 4插装在所述安装座 1的中部轴孔中， 所述直线执行器 3配有固定 座 12 ,所述固定座 12的两侧设有轴 2 ,所述轴 2插装在安装座 1的下端部轴 孔中。
所述摇臂 8的中部和两端均设有轴孔， 所述摇臂 8的上端与所述阀杆 9 采用铰链连接， 所述摇臂 8的下端与所述直线执行器的推杆 11采用铰链连 接， 所述螺纹轴 6的两端插装于所述摇臂 8的中部孔中， 所述螺纹轴 6通过 中部设置的丝孔与所述丝杠 5配套连接， 所述丝杠 5的一端固定在所述铰链 轴 6上。
本实施例中所述直线执行器 3采用电动直线执行器。
本发明的工作原理是： 在电动控制状态下， 摇臂 8以螺纹轴 6作为支点 形成杠杆机构， 此时摇臂 8与直线执行器 3连接铰链作为作用力点， 摇臂 8 与阀杆 9连接铰链作为反作用力点， 当直线执行器的推杆 11伸缩移动时，带 动阀杆 9做直线运动， 进而准确控制水阀开度。
由于本技术方案在摇臂 8、 阀杆 9、丝杠 5及直线执行器 3的连接结构上 采用了铰链连接，形成多连杆结构，从而保证了在直线执行器的推杆 11推动 时能保证阀杆 9始终直线运动， 运动结构筒单灵活； 本实施例采用电动直线 执行器 3可更方便的实现进给量的电脑自动控制， 并通过电动直线执行器 3 精确控制阀杆的位置， 本实施例配用软件来实现对机械阀门开度的非线性补 偿， 进而能精确控制高能混合器中清水流量和干粉的配比， 从而保证了水泥 浆密度。
另外在所述丝杠的一端设置手动摇柄 7 , 在所述螺纹轴 6和丝杠 5连接 处设有通孔，该通孔贯穿所述螺纹轴 6和丝杠 5 ,在所述通孔中设有销轴 10。 以此可实现阀杆 9 的手动控制。 销轴 1 0也可以保证在电动控制时螺纹轴 6 与丝杆 5连接的稳固。
当电动直线执行器 3发生故障或在紧急情况下， 直接拔出所述销轴 10 , 就可用手动摇柄 7控制阀杆 9的位置， 实现手动控制和电动控制两种方式间 快速切换， 可有效避免因转换不及时而造成的损失。
在手动控制时工作原理是： 摇臂 8 以直线执行器 3的推杆 11与摇臂 8 连接铰链作为支点形成杠杆机构， 当拔出销轴 10后，通过手动摇柄 7带动丝 杠 5旋转， 螺纹轴 6沿丝杠 5运动， 此时螺纹轴 6作为作用力点， 摇臂 8与 阀杆 9连接铰链作为反作用力点， 当顺时针或反时针摇动手动摇柄 7时可以 实现对阀杆 9的推拉控制。
如图 6所示， 本发明还提供了一种采用以上所述清水控制装置的高能混 合器， 具体方案是： 将本发明所述的清水控制装置的安装座固定于所述高能 混合器的清水管 1 3的管头法兰上与清水阀门一起组成清水控制系统。清水从 清水管 1 3入口 I经过清水阀门控制进入高能混合器腔体， 与由干粉管 14入 口 II送入的水泥混合， 由于采用本发明所述的清水控制装置， 能对清水流量 通过电脑软件实现较精确的控制， 包括对机械阀门开度的非线性补偿， 使得 高能混合器的混浆效果比现有技术更优， 即水泥浆密度能更好的满足使用要 求。

Claims

权 利 要 求 书
1、 一种高能混合器清水控制装置， 包括安装座、 直线执行器、 铰链轴、 摇臂、 丝杠、 螺纹轴及阔杆， 其特征在于： 所述安装座的上部与高能混合器 的清水管端部固定连接， 所述安装座的下端部和中部均设有轴孔， 所述铰链 轴插装在所述安装座的中部轴孔中， 所述直线执行器配有固定座， 所述固定 座的两侧设有轴， 所述轴插装在安装座的下端部轴孔中；
所述摇臂的中部和两端均设有轴孔， 所述摇臂的上端与所述阀杆采用铰 链连接， 所述摇臂的下端与所述直线执行器的推杆采用铰链连接， 所述螺纹 轴的两端插装于所述摇臂的中部孔中， 所述螺纹轴的中部设有丝孔并与所述 丝杠配套连接， 所述丝杠的一端固定在所述铰链轴上。
2、 根据权利要求 1 所述的高能混合器清水控制装置， 其特征在于： 所 述直线执行器是电动直线执行器。
3、 根据权利要求 1至 1任一项所述的高能混合器清水控制装置， 其特 征在于： 在所述丝杠的另一端还设有手动摇柄， 在所述螺纹轴和丝杠连接处 设有通孔， 在所述通孔中设有销轴。
4、 一种高能混合器， 其特征在于： 包括如权利要求 1-3任一项所述的 清水控制装置。
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