WO2014000331A1 - 耐高压紧固管道连接装置 - Google Patents

耐高压紧固管道连接装置 Download PDF

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Publication number
WO2014000331A1
WO2014000331A1 PCT/CN2012/079161 CN2012079161W WO2014000331A1 WO 2014000331 A1 WO2014000331 A1 WO 2014000331A1 CN 2012079161 W CN2012079161 W CN 2012079161W WO 2014000331 A1 WO2014000331 A1 WO 2014000331A1
Authority
WO
WIPO (PCT)
Prior art keywords
circumferential surface
fitting body
inner circumferential
main body
main fitting
Prior art date
Application number
PCT/CN2012/079161
Other languages
English (en)
French (fr)
Inventor
包永安
Original Assignee
天津中瑞邦络克管道联接技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 天津中瑞邦络克管道联接技术有限公司 filed Critical 天津中瑞邦络克管道联接技术有限公司
Priority to US13/906,071 priority Critical patent/US20130270821A1/en
Publication of WO2014000331A1 publication Critical patent/WO2014000331A1/zh

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L13/00—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints
    • F16L13/14—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints made by plastically deforming the material of the pipe, e.g. by flanging, rolling
    • F16L13/146—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints made by plastically deforming the material of the pipe, e.g. by flanging, rolling by an axially moveable sleeve

Definitions

  • the present invention relates to the field of pipe joints, and more particularly to a pipe joint device that is realized by pressure tightness.
  • the existing pressure fastening pipe joint is composed of a joint main body and a pressing ring, and the connected pipe is inserted into the inner hole of the joint main body, the pressing ring is set on the outer circumference of the joint main body, and the outer ends of the joint main body are pressed.
  • the upper annular protrusions press the protruding clamping ring belt on the inner hole at both ends of the joint body into the pipe to realize the fastening connection. It has the advantages of operating cylinder, wide adaptability, high efficiency, low energy consumption, no pollution, etc. However, for higher pipeline medium pressure, there will be insufficient clamping force between the joint body and the pipeline, causing the connected pipeline to escape.
  • the existing pressure-tight pipe joints are limited to withstand higher working pressures.
  • the technical problem to be solved by the present invention is to overcome the deficiencies in the prior art and to provide a high pressure resistant fastening pipe connecting device.
  • the high-pressure-resistant fastening pipe connecting device of the invention is realized by the following technical solution.
  • the device is composed of a joint main body and two pressing rings, and the outer peripheral surface of the joint main body has a second-order step shape with a central symmetry, and the joint main body
  • the inner peripheral surface of the middle portion has an annular groove, and the inner peripheral surface of the middle portion of the joint main body is provided with an annular positioning shoulder, and the two pressing rings are respectively sleeved on both ends of the sealing sleeve body, and the inner circumferential surface of one end of the pressing ring has a stepped shape of a step;
  • the first inner circumferential surface of the main body is fixed with the first sealing cymbal and the second sealing cymbal; the outer wall of the sealing sleeve corresponding to the position of the second sealing cy
  • the invention belongs to an upset pressure joint, which has the following technical effects:
  • the joint is provided with anti-pulling teeth at both ends, it can effectively prevent the pipeline from being connected at a higher pressure.
  • the middle is pulled out, making the connection safer and more reliable, and can be used for higher medium pressure.
  • Figure 1 is a schematic view of the structure of the present invention
  • Fig. 2 is a cross-sectional view taken along line A-A of Fig. 1;
  • the device is composed of a joint main body 1 and two pressing rings 2-1 and 2-2, and the outer peripheral surface of the joint main body has a second-order step shape with a central symmetry, and the outer peripheral surface of the joint main body is The annular groove, the inner circumferential surface of the middle portion of the joint body is provided with an annular positioning shoulder 4, and the two compression rings are respectively sleeved on the two ends of the sealing sleeve body, and the inner circumferential surface of one end of the pressing ring has a stepped shape of one step;
  • the inner circumferential surface of the step sequentially fixes the first sealing jaw 7 and the second sealing jaw 6;
  • the outer wall of the sealing sleeve corresponding to the position of the second sealing jaw is provided with an annular protrusion 5, and the inner circumferential surfaces of the ends of the joint body are uniformly disposed respectively.
  • Ratchet 8 8.
  • the joint body 1 is machined from carbon steel or stainless steel, and the compression rings 2-1 and 2-2 are also machined from carbon steel or stainless steel.
  • the compression ring 2 is first installed with a special installation tool. -1 and 2-2 are pre-installed on both ends of the joint body 1, and the pre-installed position is as shown on the left side of Figure 1.
  • the pipes 3-1 and 3-2 are inserted from both ends of the joint main body 1 into contact with the positioning shoulder 4, and then a pressing mechanism is provided on the outer surfaces of the pressing rings 2-1 and 2-2 by the hydraulic tool Applying an external force to the mechanism, and pressing the axial force, the sealing ring body is axially Move and reduce the deformation, and contact with the step end faces of the joint body 1 as shown on the right side of Figure 1, and then press the sleeve 5, 7 points, the two sealing jaws 6, 7 on the sleeve are pressed and shrink Deformation.
  • the pipes 3-1 and 3-2 are made of carbon steel and stainless steel. After pressing, the enthalpy 6 and 7 press the pipes 3-1 and 3-2 into contact with the groove to achieve mechanical sealing and connection.
  • the anti-dropping teeth 9 are pressed into the pipes 3-1 and 3-2 to make the connection more reliable.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Joints With Sleeves (AREA)

Abstract

一种耐高压紧固管道连接装置，由一个接头主体（1）和两个压紧环（2-1，2-2）组成，接头主体（1）两端外周面呈中心对称的二阶的阶梯形状，接头主体（1）中部外圆周呈环形凹槽，接头主体（1）中部内周面设置环形定位肩（4），两个压紧环（2-1，2-2）分别套于密封套体两端，所述压紧环（2-1，2-2）一端内周面呈一阶的阶梯形状；接头主体（1）的一阶内周面依次固定第一密封圈（7）和第二密封圈（6）；与第二密封圈（6）位置相对应的密封套体外壁设置环形突起（5），接头主体（1）两端头的内周面分别均匀设置防脱棘牙（8）。该管道连接装置由于两端设置了防脱棘牙，可以有效地防止在更高压力下管道从接头中脱出，从而使联接更加安全可靠，可以用于更高的介质压力。

Description

耐高压紧固管道连接装置
技术领域
本发明涉及管道连接领域， 更具体地说， 是涉及一种通过压力紧 固实现的管道连接装置。
背景技术
管道连接普遍使用的是焊接等传统工艺。 传统工艺其工序繁多、 要求严格、 特殊材质的管道连接需使用特殊的设备及辅助的材料、 施 工作业效率低、 能源消耗高、 污染排放大、 不安全隐患多、 易损害人 身健康等情况， 已不适合当今社会发展的各项要求， 尤其是国际日益 关注的对人身健康安全和人类生存环境保护及减少能源消耗的要求。
现有的压力紧固管接头由接头主体和压紧环组成， 被连接的管道 插入接头主体两端内孔， 压紧环套装在接头主体两端外圓， 并压紧接 头主体两端外圓上的环状凸起， 从而将接头主体两端内孔上凸起的夹 紧环带压入管道， 实现紧固连接。 具有操作筒便、 适应范围广、 效率 高、 能耗低、 无污染等优点， 但是， 对于更高的管道介质压力， 会出 现接头体与管道夹紧力不足的状况， 造成连接的管道脱出， 限制了现 有压力紧固管接头承受更高的工作压力。
发明内容
本发明所要解决的技术问题是， 克服现有技术中存在的不足， 提 供一种耐高压紧固管道连接装置。 本发明耐高压紧固管道连接装置， 通过下述技术方案予以实现， 本装置由一个接头主体和两个压紧环组成， 接头主体两端外周面呈中 心对称的二阶的阶梯形状， 接头主体中部外周面呈环形凹槽， 接头主 体中部内周面设置环形定位肩， 两个压紧环分别套于密封套体两端， 所述压紧环一端内周面呈一阶的阶梯形状； 接头主体的一阶内周面依 次固定第一密封圏和第二密封圏； 与第二密封圏位置相对应的密封套 体外壁设置环形突起， 接头主体两端头的内周面分别均匀设置防脱棘 牙。
本发明属于镦粗型压力接头， 其具有如下技术效果：
1. 适用于各类工、 民、 建工程的各种外径规格和各类材质管道及 输送各类介质管道的连接。 （铸铁材质除外）
2. 装置结构和其连接部位的物理、 化学、 力学的性能及密闭、 耐 压标准等要求， 均符合被连接管道的行业或企业的技术要求。
3.安装施工前无需对管道及其连接部位进行工艺加工和各种处 理。 安装施工后无需对管道及其连接部位进行任何方式的加工、 检验 和处理。 只需在系统管道全部连接完成后， 统一进行试压检验即可。
4.安装施工使用轻巧灵活的专用液压工具， 操作筒便快捷， 作业 效率高、 不受其环境、条件的限制和约束， 对操作人员没有特殊要求， 不使用其它设备和能源， 没有任何污染和不安全隐患及对人身健康的 损害。
除具有现有的镦粗型压力接头的优点外， 还具有以下优点： 由于 接头两端设置了防脱棘牙， 可以有效地防止在更高压力下管道从接头 中脱出， 从而使联接更加安全可靠， 可以用于更高的介质压力。
附图说明
图 1是本发明的结构示意图；
图 2是图 1的 A-A剖视图。
图中： 1: 接头主体， 2-1: 压紧环， 2-2: 压紧环， 3-1: 管道， 3-2: 管道， 4: 定位肩， 5: 环形突起， 6: 第二密封圏， 7: 第一密封圏， 8: 防脱棘牙， 9: 防脱棘牙。
具体实施方式
下面结合附图对本发明做进一步描述。
如图 1所示， 本装置由一个接头主体 1和两个压紧环 2-1及 2-2 组成， 接头主体两端外周面呈中心对称的二阶的阶梯形状， 接头主体 中部外周面呈环形凹槽， 接头主体中部内周面设置环形定位肩 4, 两 个压紧环分别套于密封套体两端， 所述压紧环一端内周面呈一阶的阶 梯形状； 接头主体的一阶内周面依次固定第一密封圏 7和第二密封圏 6; 与第二密封圏位置相对应的密封套体外壁设置环形突起 5, 接头主 体两端头的内周面分别均匀设置防脱棘牙 8。
接头体 1由碳钢或不锈钢经机加工制成， 压紧环 2-1和 2-2同样 由碳钢或不锈钢经机加工制成， 连接管道前， 先用专用安装工具将压 紧环 2-1和 2-2预装在接头主体 1两端， 预装后的位置按图 1左侧所 示。 连接管道时， 将管道 3-1和 3-2从接头主体 1两端插入与定位肩 4接触， 然后在压紧环 2-1和 2-2地外表面设置一个施压机构， 由液 压工具对该机构施加外力， 通过轴向的加力挤压， 密封环体随之轴向 运动并缩小变形，并按图 1右侧所示与接头主体 1两端台阶端面接触， 先后挤压套体 5、 7点， 套体上的两道密封圏 6、 7受压并随之缩小变 形。 所述管道 3-1和 3-2材料为碳钢和不锈钢。 压紧后项圏 6和 7将 管道 3-1和 3-2与其接触位置压出凹槽， 实现机械密封和连接。 防脱 棘牙 9被压入管道 3-1和 3-2中， 使连接更加可靠。
上面所述的实施例仅仅是对本发明优选实施方式进行描述， 并非 对本发明的构思和范围进行限定，在不脱离本发明设计思想的前提下， 本领域中普通工程技术人员对本发明的技术方案作出的各种变形和改 进， 均应属于本发明的保护范围。

Claims

权 利 要 求 书
1、 一种耐高压紧固管道连接装置， 其特征是， 装置由一个接头主体和 两个压紧环组成，接头主体两端外周面呈中心对称的二阶的阶梯形状， 接头主体中部外周面呈环形凹槽， 接头主体中部内周面设置环形定位 肩， 两个压紧环分别套于密封套体两端， 所述压紧环一端内周面呈一 阶的阶梯形状； 接头主体的一阶内周面依次固定第一密封圏和第二密 封圏； 与第二密封圏位置相对应的密封套体外壁设置环形突起， 所述 接头主体两端头的内周面分别均匀设置防脱棘牙。
PCT/CN2012/079161 2012-04-12 2012-07-26 耐高压紧固管道连接装置 WO2014000331A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US13/906,071 US20130270821A1 (en) 2012-04-12 2013-05-30 Coupling assembly that establishes a pipe connection through pressure clamping

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201220305204.2 2012-06-28
CN 201220305204 CN202852235U (zh) 2012-06-28 2012-06-28 耐高压紧固管道连接装置

Related Child Applications (1)

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US13/906,071 Continuation-In-Part US20130270821A1 (en) 2012-04-12 2013-05-30 Coupling assembly that establishes a pipe connection through pressure clamping

Publications (1)

Publication Number Publication Date
WO2014000331A1 true WO2014000331A1 (zh) 2014-01-03

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2921755A1 (de) * 2014-03-19 2015-09-23 Eugen Riexinger GmbH & Co. KG Plasticconnectingssystems Kupplung zur Herstellung einer Preßverbindung zwischen zwei Rohren

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109186007A (zh) * 2018-10-19 2019-01-11 际高科技有限公司 一种户式空气源双板热回收新风机组
CN109882668A (zh) * 2019-03-26 2019-06-14 上海海隆石油钻具有限公司 一种管道压接用管端快速连接装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2719882A1 (de) * 1977-04-29 1978-11-02 Mannesmann Roehren Werke Ag Rohrverbindung fuer leitungsrohre
US4705302A (en) * 1986-05-28 1987-11-10 Teledyne Linair Engineering Tube fitting
US5114191A (en) * 1990-03-22 1992-05-19 Lokring Corporation Pipe fitting with coupling body and improved isolation tooth arrangement
WO2000034706A1 (de) * 1998-12-08 2000-06-15 Selck Gmbh & Co. Kg Vorrichtung zur herstellung einer rohrkupplung
CN101046266A (zh) * 2006-03-31 2007-10-03 杭州航宇管业有限公司 一种用于连接金属薄壁管的卡环式管件

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2719882A1 (de) * 1977-04-29 1978-11-02 Mannesmann Roehren Werke Ag Rohrverbindung fuer leitungsrohre
US4705302A (en) * 1986-05-28 1987-11-10 Teledyne Linair Engineering Tube fitting
US5114191A (en) * 1990-03-22 1992-05-19 Lokring Corporation Pipe fitting with coupling body and improved isolation tooth arrangement
WO2000034706A1 (de) * 1998-12-08 2000-06-15 Selck Gmbh & Co. Kg Vorrichtung zur herstellung einer rohrkupplung
CN101046266A (zh) * 2006-03-31 2007-10-03 杭州航宇管业有限公司 一种用于连接金属薄壁管的卡环式管件

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2921755A1 (de) * 2014-03-19 2015-09-23 Eugen Riexinger GmbH & Co. KG Plasticconnectingssystems Kupplung zur Herstellung einer Preßverbindung zwischen zwei Rohren

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