CN111810740A - 可伸缩万向管线 - Google Patents

可伸缩万向管线 Download PDF

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Publication number
CN111810740A
CN111810740A CN202010563466.8A CN202010563466A CN111810740A CN 111810740 A CN111810740 A CN 111810740A CN 202010563466 A CN202010563466 A CN 202010563466A CN 111810740 A CN111810740 A CN 111810740A
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China
Prior art keywords
ball head
ball
shaft
sealing ring
spherical
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CN202010563466.8A
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English (en)
Inventor
王红丽
史峰连
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LANZHOU CHANGQING PETROLEUM MACHINERY PLANT
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LANZHOU CHANGQING PETROLEUM MACHINERY PLANT
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Priority to CN202010563466.8A priority Critical patent/CN111810740A/zh
Publication of CN111810740A publication Critical patent/CN111810740A/zh
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L27/00Adjustable joints, Joints allowing movement
    • F16L27/02Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction
    • F16L27/04Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction with partly spherical engaging surfaces
    • F16L27/06Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction with partly spherical engaging surfaces with special sealing means between the engaging surfaces
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L27/00Adjustable joints, Joints allowing movement
    • F16L27/02Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction
    • F16L27/026Universal and axially displaceable joints
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L27/00Adjustable joints, Joints allowing movement
    • F16L27/02Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction
    • F16L27/04Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction with partly spherical engaging surfaces
    • F16L27/047Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction with partly spherical engaging surfaces held in place by a screwed member having an internal spherical surface
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L27/00Adjustable joints, Joints allowing movement
    • F16L27/12Adjustable joints, Joints allowing movement allowing substantial longitudinal adjustment or movement
    • F16L27/125Adjustable joints, Joints allowing movement allowing substantial longitudinal adjustment or movement having longitudinal and rotary movement

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Joints Allowing Movement (AREA)
  • Pivots And Pivotal Connections (AREA)

Abstract

一种压裂用的可伸缩万向管线,包括凹头、球面密封圈、球面螺母、球头套、活塞密封圈及球头轴,球面螺母的内球面分别卡住球头套和球头轴的球头,并与凹头的外螺纹旋合固定在一起,与凹头的内球面形成球铰接结构。球头套与球头轴通过螺纹连接在一起,调节螺纹旋合长度,可调节两者之间的轴向长度。使用一组或多组本管线串联两组大通径高压管汇时,只需粗略调整高压管汇的中心和距离,通过伸缩和扭、转本管线的各关节,使各法兰轻松对接,完成安装,大大降低安装难度,缩短安装周期,提高效率,降低成本。

Description

可伸缩万向管线
技术领域
本发明属于石油天然气行业,特别是井下压裂作业中大通径高压管汇的联接技术,确切说是一种可伸缩万向管线。
背景技术
油气井压裂作业时,需要多台压裂设备同时泵出高压液体,经一组或几组高压管汇汇集到一起,再打入井下,扩大地层裂隙。现在的水平井压裂作业,尤其是页岩气压裂作业时,对压裂机组的泵送功率要求越来越大,一般会有几十台压裂设备同时并排作业,需要用法兰硬管线将数组通径大于130mm的高压管汇串联到一起使用。使用法兰硬管线串联时,对相邻两组高压管汇的中心同轴度要求非常高,同轴度要求在2mm之内,否则无法穿过法兰螺栓,但现场地面多为砂土地面铺盖一层厚钢板或钢管排,平整度极差,而且大通径高压管汇一般长约7米,重约6吨,很是笨重,只能使用大型吊车和人力撬杠一点一点反复调整,有时甚至一两天才能安装好两组大通径高压管汇,效率非常低,拖延整个压裂进度。因此迫切需要一种全新的联接方式。
发明内容
本发明的目的是为解决上述问题,提供一种结构简单可靠、安装便捷的可伸缩万向管线。
本发明的结构包括凹头、球面密封圈、球面螺母、球头套、活塞密封圈及球头轴,球面螺母的内球面分别卡住球头套和球头轴的球头,并与凹头的外螺纹旋合固定在一起,与凹头的内球面形成球铰接结构。
凹头的内球面内有1~3道密封槽,用以放置防止从球面处泄漏的球面密封圈。
球头套一端有一段圆孔,与球头轴一端的圆轴形成间隙配合。
球头轴的圆轴上有1~3道密封槽,用以放置防止从圆轴处泄漏的活塞密封圈。
球头套与球头轴通过螺纹联接在一起,调节螺纹旋合长度,可调节两者之间的轴向长度。
本发明的优点是:
1.调节球头套、球头轴的螺纹旋合长度,可调节两者之间的轴向长度,实现轴向伸缩。
2.单个球铰接可以摆动-5°~5°,转动两个球铰接,可在一定范围内实现万向连接。
3.使用一组或多组本发明串联两组大通径高压管汇时,只需粗略调整高压管汇的中心和距离,通过伸缩和扭、转本发明的各关节,使各法兰轻松对接,完成安装,大大降低安装难度,缩短安装周期,提高效率,降低成本。
4.也可以将多组本发明直接串联,形成一种新的柔性管线,代替目前的压裂管线。
附图说明
图1为本发明结构示意图。
图中标记为:1、凹头,2、球面密封圈,3、球面螺母,4、球头套,5、活塞密封圈,6、球头轴。
具体实施方式
下面结合附图对本发明做进一步描述。
如图所示,一种可伸缩万向管线,包括凹头(1)、球面密封圈(2)、球面螺母(3)、球头套(4)、活塞密封圈(5)及球头轴(6),球面螺母(3)的内球面分别卡住球头套(4)和球头轴(6)的球头,并与凹头(1)的外螺纹旋合固定在一起,与凹头(1)的内球面形成球铰接结构。
凹头(1)的内球面内有1~3道密封槽,用以放置防止从球面处泄漏的球面密封圈(2)。
球头套(4)一端有一段圆孔,与球头轴(6)一端的圆轴形成间隙配合。
球头轴(6)的圆轴上有1~3道密封槽,用以放置防止从圆轴处泄漏的活塞密封圈(5)。
球头套(4)与球头轴(6)通过螺纹联接在一起,调节螺纹旋合长度,可调节两者之间的轴向长度,实现轴向伸缩。
使用一组或多组本发明串联两组大通径高压管汇时,只需粗略调整高压管汇的中心和距离,通过伸缩和扭、转本发明的各关节,使各法兰轻松对接,完成安装。

Claims (5)

1.一种可伸缩万向管线,其特征在于:包括凹头(1)、球面密封圈(2)、球面螺母(3)、球头套(4)、活塞密封圈(5)及球头轴(6),球面螺母(3)的内球面分别卡住球头套(4)和球头轴(6)的球头,并与凹头(1)的外螺纹旋合固定在一起,与凹头(1)的内球面形成球铰接结构。
2.根据权利要求1所述的可伸缩万向管线,其特征在于:所述的凹头(1)的内球面内有1~3道密封槽,用以放置防止从球面处泄漏的球面密封圈(2)。
3.根据权利要求1所述的可伸缩万向管线,其特征在于:所述的球头套(4)一端有一段圆孔,与球头轴(6)一端的圆轴形成间隙配合。
4.根据权利要求1所述的可伸缩万向管线,其特征在于:所述的球头轴(6)的圆轴上有1~3道密封槽,用以放置防止从圆轴处泄漏的活塞密封圈(5)。
5.根据权利要求1所述的可伸缩万向管线,其特征在于:所述的球头套(4)与球头轴(6)通过螺纹联接在一起。
CN202010563466.8A 2020-06-15 2020-06-15 可伸缩万向管线 Pending CN111810740A (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113323865A (zh) * 2021-07-19 2021-08-31 中国石油天然气股份有限公司 一种气井柱塞
CN114427949A (zh) * 2022-01-18 2022-05-03 黑龙江省体育科学研究所 一种可调角度的低速空气推杆装置及使用方法

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113323865A (zh) * 2021-07-19 2021-08-31 中国石油天然气股份有限公司 一种气井柱塞
CN114427949A (zh) * 2022-01-18 2022-05-03 黑龙江省体育科学研究所 一种可调角度的低速空气推杆装置及使用方法
CN114427949B (zh) * 2022-01-18 2024-05-14 黑龙江省体育科学研究所 一种可调角度的低速空气推杆装置及使用方法

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