WO2013155703A1 - 活节式中高压管道连接件 - Google Patents

活节式中高压管道连接件 Download PDF

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Publication number
WO2013155703A1
WO2013155703A1 PCT/CN2012/074443 CN2012074443W WO2013155703A1 WO 2013155703 A1 WO2013155703 A1 WO 2013155703A1 CN 2012074443 W CN2012074443 W CN 2012074443W WO 2013155703 A1 WO2013155703 A1 WO 2013155703A1
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Prior art keywords
locking
connecting body
high pressure
ring
sides
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PCT/CN2012/074443
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English (en)
French (fr)
Inventor
葛文宇
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Ge Wenyu
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Priority to PCT/CN2012/074443 priority Critical patent/WO2013155703A1/zh
Publication of WO2013155703A1 publication Critical patent/WO2013155703A1/zh

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    • 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
    • F16L17/00—Joints with packing adapted to sealing by fluid pressure
    • F16L17/02—Joints with packing adapted to sealing by fluid pressure with sealing rings arranged between outer surface of pipe and inner surface of sleeve or socket
    • F16L17/04—Joints with packing adapted to sealing by fluid pressure with sealing rings arranged between outer surface of pipe and inner surface of sleeve or socket with longitudinally split or divided sleeve
    • 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
    • F16L25/00—Constructive types of pipe joints not provided for in groups F16L13/00 - F16L23/00 ; Details of pipe joints not otherwise provided for, e.g. electrically conducting or insulating means
    • F16L25/12—Joints for pipes being spaced apart axially

Definitions

  • the invention relates to a connecting member, in particular to a joint type medium and high pressure pipe connecting piece, which is mainly used for It is connected to medium and high pressure pipelines with working pressure above 1.6MPa.
  • the pipe connection method that can bear the medium and high pressure working pressure of 1.6MPa or more is only 'welding'; 'welding' is divided into gas welding and electric welding. Most of the actual work is electric welding, and only a few cases use gas welding because gas welding is better than electric welding. Trouble and high welding costs; but there are also five problems in electric welding: First, there must be electricity, no electricity can not work, especially in the field, often need to pull power from a very distant line, or use a generator The second is that the medium and high pressure pipelines have high requirements on the quality of the welds. For each weld, it is necessary to do an X-inspection on the welds.
  • the object of the present invention is to provide a joint type medium and high pressure pipe connecting piece which can be arbitrarily assembled and disassembled, has simple structure, convenient operation, no welding, no construction equipment, labor saving and time saving, and eliminates leakage, and overcomes the existing pipe connecting technology. insufficient.
  • the articulated medium and high pressure pipe joint of the invention a connecting body surrounded by two opposite pipe joints, the inner side of the connecting body is an annular cavity, and a circular sealing ring sleeved on the outer side of the pipe is arranged in the cavity, and the inner ring of the sealing ring has a direction Two symmetrical lips of the inner bend, two lips are located on two sides of the two opposite pipe joints, and a locking positioning member is arranged between the connecting body and the pipe.
  • the joint type medium and high pressure pipe joint of the invention wherein
  • the connecting body is a cylinder formed by two semi-circular bodies being engaged with each other.
  • the locking positioning member is a plurality of tooth blocks, and the tooth blocks are arranged in the block grooves on both sides of the connecting body, and the teeth block The tooth is pressed against the outside of the tube, and the connecting body has locking wings, and the connecting body is lockedly connected with the tube by the locking bolt at the locking fin.
  • the joint type medium and high pressure pipe joint of the invention wherein
  • the connecting body is annular, and the two sides of the connecting body are provided with a locking ring, and the locking ring is an annular hoop formed by at least two arc-shaped circular bodies being engaged with each other, the locking positioning member
  • the teeth are arranged in the groove of the block inside the locking ring, the teeth of the block are pressed against the outside of the tube, the locking ring has locking wings, and the locking bolt is used to lock the tube at the locking fin Lock tightly.
  • the joint type medium and high pressure pipe joint of the invention wherein
  • the locking ring also has connecting fins, and the connecting fins on both sides of the connecting body are fixedly connected by connecting bolts.
  • the joint type medium and high pressure pipeline connecting member of the invention has the advantages of simple and practical structure, one without leakage, no mechanical equipment for construction and installation, no spark generated by the power source, safe and reliable, Convenient and fast, improve work efficiency and shorten half of the construction period, save 80% of installation labor costs, and reduce construction cost by more than 30%.
  • Embodiment 1 is a schematic structural view of Embodiment 1 in a specific embodiment of the present invention.
  • Figure 2 is a left side view of Figure 1;
  • Embodiment 3 is a schematic structural view of Embodiment 2 in a specific embodiment of the present invention.
  • Figure 4 is a left side view of Figure 3.
  • 1 and 2 are the first and second tubes that are butted together, and 3 is the connector.
  • the inside of the connecting body 3 has an annular cavity in which a circular sealing ring 5 is disposed outside the tubes 1, 2, and the inner ring of the circular sealing ring 5 has two inwardly bent portions.
  • the symmetrical lip 6, the two lips 6 are located just on opposite sides of the opposite interface of the first tube 1 and the second tube 2 which are opposite to each other.
  • a locking positioning member is disposed between the connecting body 3 and the tubes 1 and 2.
  • the connecting body 3 is a cylinder formed by two semi-circular bodies being fastened to each other, and the locking positioning member is a plurality of dental blocks 4 arranged in the groove of the teeth on both sides of the connecting body 3, the teeth
  • the teeth of the block 4 are pressed against the outside of the pipes 1, 2, the connecting body 3 has locking wings 8, and the locking fins 8 have bolt holes, and the two semicircular connecting bodies 3 are relatively tight by the locking bolts 7. It is fixed at the interface where the first pipe 1 and the second pipe 2 are butted.
  • the teeth of the fastened rear block 4 are bitten into the outer wall of the pipe to a depth of 20 to 60 ⁇ m.
  • the block 4 is made of high-strength alloy steel, and the material hardness of the block 4 is more than 1.5 times the hardness of the tube material, so that the teeth are smoothly bitten into the tube skin.
  • the material of the circular sealing ring 5 is a soft, flexible material such as rubber or other material that can be used to make a sealing ring.
  • the medium in the pipe enters the inner cavity of the seal ring 5 from the interface gap of the two butt pipes, and applies pressure to the inner side wall of the seal ring 5, and the lip 6 Pressed tightly against the outside of the tube under pressure to achieve pipe connection and sealing.
  • the connecting body 3 is a unitary ring shape, and the sealing ring 5 is located in the inner cavity of the connecting body 3.
  • the two lips 6 are located at the outer surfaces of the first tube 1 and the second tube 2, respectively.
  • the right side of the connecting body 3 is provided with a right locking ring 9 and a left locking ring 10, and the right locking ring 9 and the left locking ring 10 are an annular hoop formed by two semi-circular bodies being engaged with each other.
  • the locking positioning member is also a plurality of teeth 4, and the teeth 4 are arranged in the groove of the block inside the locking ring, the teeth of the block are pressed against the outside of the pipe, and the locking ring 8 is locked on the locking ring.
  • a bolt hole is formed at the pinch 8 and the locking ring is firmly hung on the tubes 1 and 2 by the locking bolt 7.
  • the locking ring can be changed to 3 or even 4 circular arcs to form a round hoop to hug the pipe.
  • the other portions are the same as those of Embodiment 1, and will not be described in detail.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Joints With Sleeves (AREA)

Abstract

一种活节式中高压管道连接件，有环抱在两根相对接的管子（1，2）接口处外侧的连接体（3），连接体（3）内侧是环形空腔，在该空腔中设有套装在管子（1，2）外侧的圆形密封环（5），密封环（5）的内环处有向内折弯的两个对称的唇边（6），两个唇边（6）位于两根相对接的管子（1，2）的接口的两侧，连接体（3）与管子（1，2）之间设有锁紧定位件。该活节式中高压管道连接件，结构简单实用，使用安全可靠，安装方便快捷。

Description

活节式中高压管道连接件 技术领域
本发明涉及一种连接件，特别是一种活节式中高压管道连接件，主要用于 承受工作压力在1.6MPa以上的中高压管道的连接。
背景技术
目前能承担1.6MPa以上中高压工作压力的管道连接方法只有'焊接'；'焊接'分气焊和电焊两种，实际工作中大部分是用电焊，只有极少数情况下用气焊，因为气焊比电焊麻烦且焊接成本高；但电焊也存在以下五个问题：一是必须得有电，没电干不了活，尤其是在野外作业时常常需要从很远处架线拉来电源，或用发电机发电；二是中高压管道对焊缝质量要求高，每焊一遍就必须对焊缝做一次X探伤，检查焊肉中是否有气孔或焊渣，如有必须清除，中高压管道的壁厚都比较厚， 一个焊缝需要焊几遍，也就需要探伤几次，十分麻烦；三是焊接时能产生1600℃以上的高温，使焊缝左右两侧各10公分范围内管道的内外保护层给烧燬了，失去保护层的管壁很快就会腐蚀了，所以焊接完了之后还要将焊缝两边管道内外层重新修补好保护层；四是'仰焊'难，管道是圆的，一圈焊缝中必有一段需要'仰焊'，仰脸向上焊时熔化的钢焊水会自动的向下流滴，所以'仰焊'很难保证焊缝的焊接质量； 五是在冬季寒冷环境下焊接管道就更复杂了，首先要在管道焊接处搭起一个防风棚，人在棚内工作免遭寒风袭击，还要将被焊接的二根管子端头先用火预热一段时间，预热达到一定的温度才能开始焊接，对焊完的焊缝要立即做好保温复盖，防止冷淬裂纹，最后再做探伤检查；
如果在煤矿矿井里，周围有可燃性气体的环境内焊接管道，必然会引发大火或爆炸事故；如果是化工厂用的生产工艺管道，管内的介质是可燃或易爆性的，就必须停产将管道内介质完全排空之后才能焊接，否则一焊接就会立即发生爆炸事故。
发明内容
本发明的目的是提供一种可以任意装拆的结构简单、操作方便、不用焊接、不用施工设备、省工省时、消除泄漏的活节式中高压管道连接件，克服现有管道连接技术的不足。
本发明的活节式中高压管道连接件， 有环抱在两根相对接的管子接口处外侧的连接体，连接体内侧是环形的空腔，在该空腔中设有套装在管子外侧的圆形密封环，密封环的内环处有向内折弯的两个对称的唇边，两个唇边位于两根相对接的管子接口的两侧，连接体与管子之间设有锁紧定位件。
本发明的活节式中高压管道连接件，其中 所述的连接体为两个半圆形体相互扣合而组成的一个圆筒，所述的锁紧定位件为多个牙块，牙块排列在连接体两侧的牙块槽内，牙块的牙齿压靠在管子外侧，连接体上有锁紧翅，在锁紧翅处通过锁紧螺栓将连接体与管子锁紧连接。
本发明的活节式中高压管道连接件，其中 所述的连接体为环形，在连接体的两侧管子上套装有锁紧环，锁紧环为至少两个弧状圆形体相互扣合而组成的一个环形箍，所述的锁紧定位件为多个牙块，牙块排列在锁紧环内侧的牙块槽内，牙块的牙齿压靠在管子外侧，锁紧环上有锁紧翅，在锁紧翅处通过锁紧螺栓将管子锁紧抱牢。
本发明的活节式中高压管道连接件，其中 所述的锁紧环上还有连接翅，位于连接体两侧的连接翅通过连接螺栓固定连接。
本发明的活节式中高压管道连接件，结构简单实用，一个不漏，施工安装不用机械设备，不用电源不产生火花，安全可靠， 方便快捷，提高工效缩短一半工期，节省80%安装人工费，降低30%以上工程造价。
附图说明
图 1 是本发明具体实施方式中实施例 1 的结构示意图；
图 2 是图 1 所示的左视示意图；
图 3 是本发明具体实施方式中实施例 2 的结构示意图；
图 4 是图3 所示的左视示意图。
具体实施方式
实施例 1 ：
如图 1 、 2 所示： 1 、 2 分别为相互对接的第一根管子和第二根管子， 3 为连接体， 连接体3内侧有环形的空腔，在该空腔内设有套装在管子1、2外侧的圆形的密封环5，圆形的密封环5的内环处有向内折弯的两个对称的唇边6，两个唇边6刚好位于相对接的第一根管子1和第根二管子2的对接口的两侧。连接体3与管子1与2之间设有锁紧定位件。
为了便于安装，连接体3为两个半圆形体相互扣合而组成的一个圆筒，锁紧定位件为多个牙块4，牙块4排列在连接体3两侧的牙块槽内，牙块4的牙齿压靠在管道1、2外侧，连接体3上有锁紧翅8，在锁紧翅8处有螺栓孔，通过锁紧螺栓7将两个半圆形的连接体3相对紧固在第一根管子1和第二根管子2对接的接口处。紧固后牙块4的齿牙啮咬嵌入管道外壁的深度达20～60μm。牙块4用高强度的合金钢制成的，牙块4的材料硬度是管子材料硬度的1.5倍以上，保证齿牙顺利的啮咬进管子外皮。圆形的密封环5的材料为软体柔性的材料，如橡胶或其它可制作密封圈的材料。
运行时，管道内的介质就从两根对接管子的接口缝隙进入密封环 5 的内腔，并对密封环 5 内侧壁施加压力，唇边 6 在压力作用下被紧紧的压靠在管子外侧，达到管道连接和密封的目的。
实施例 2 ：
如图 3 、 4 所示：与实施例 1 所不同的是连接体 3 为整体的环状，位于连接体 3 内腔的密封环 5 的两个唇边 6 分别位于第一根管子 1 和第二根管子 2 的外表面处。 在连接体3的两侧管子上套装有右锁紧环9和左锁紧环10，右锁紧环9和左锁紧环10均为两个半圆形体相互扣合而组成的一个环形箍，锁紧定位件同样为多个牙块4，牙块4排列在各锁紧环内侧的牙块槽内，牙块的牙齿压靠在管道外侧，锁紧环上有锁紧翅8，在锁紧翅8处加工有螺栓孔并通过锁紧螺栓7将锁紧环牢固的箍抱在管子1与2上。锁紧环上还有连接翅11，位于连接体3两侧的连接翅11通过连接螺栓12固定连接。当被连接的管子直径大于1米时，锁紧环可改变为3个甚至4个圆弧体组合成一个圆箍来箍抱住管子。其它部分与实施例1结构相同，不再详述。

Claims (4)

  1. 一种活节式中高压管道连接件，其特征在于： 有环抱在两根相对接的管子（1、2）接口处外侧的连接体（3），连接体（3）内侧是环形的空腔，在该空腔中设有套装在管子（1、2）外侧的圆形密封环（5），密封环（5）的内环处有向内折弯的两个对称的唇边（6），两个唇边（6）位于两根相对接的管子（1、2）接口的两侧，连接体（3）与管子（1、2）之间设有锁紧定位件。
  2. 根据权利要求1所述的 活节式中高压管道连接件， 其特征在于：所述的连接体（3）为两个半圆形体相互扣合而组成的一个圆筒，所述的锁紧定位件为多个牙块（4），牙块（4）排列在连接体（3）两侧的牙块槽内，牙块（4）的牙齿压靠在管子（1、2）外侧，连接体（3）上有锁紧翅（8），在锁紧翅（8）处通过锁紧螺栓（7）将连接体（3）与管子（1、2）锁紧连接。
  3. 根据权利要求1所述的 活节式中高压管道连接件， 其特征在于：所述的连接体（3）为环形，在连接体（3）的两侧管子（1、2）上套装有锁紧环（9、10），锁紧环（9、10）为至少两个弧状圆形体相互扣合而组成的一个环形箍，所述的锁紧定位件为多个牙块（4），牙块（4）排列在锁紧环（9、10）内侧的牙块槽内，牙块（4）的牙齿压靠在管子（1、2）外侧，锁紧环（9、10）上有锁紧翅（8），在锁紧翅（8）处通过锁紧螺栓（7）将管子（1、2）锁紧抱牢。
  4. 根据权利要求3所述的活节式中高压管道连接件，其特征在于：所述的锁紧环（9、10）上还有连接翅（11），位于连接体（3）两侧的连接翅（11）通过连接螺栓（12）固定连接。
PCT/CN2012/074443 2012-04-20 2012-04-20 活节式中高压管道连接件 WO2013155703A1 (zh)

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Cited By (6)

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CN104879580A (zh) * 2015-06-19 2015-09-02 李俊伟 耐高压防渗漏金属密封卡箍锁紧式大直径管路连接装置
CN104964109A (zh) * 2015-06-19 2015-10-07 李俊伟 一种卡箍锁紧式双接触面金属密封耐压防渗管路连接装置
CN105333252A (zh) * 2015-12-11 2016-02-17 浙江康帕斯流体输送技术有限公司 一种管接头
CN106439302A (zh) * 2016-10-18 2017-02-22 刘之华 双密封式管道连接结构
CN111076009A (zh) * 2018-10-19 2020-04-28 青岛尚禹环境科技有限公司 钢管快速连接箍及生产方法
CN111828154A (zh) * 2020-07-21 2020-10-27 宁波经济技术开发区恒阳机械有限公司 一种锁紧卡箍及安装方法

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JP2005090605A (ja) * 2003-09-16 2005-04-07 Riken Corp 管継手
CN201462254U (zh) * 2009-09-08 2010-05-12 新兴铸管股份有限公司 一种倒刺式钢塑复合压力管用管件
CN201672188U (zh) * 2010-05-10 2010-12-15 王莘 沟槽连接用衬塑钢管

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Publication number Priority date Publication date Assignee Title
JP2005076799A (ja) * 2003-09-02 2005-03-24 Jfe Pipe Fitting Mfg Co Ltd ハウジング形管継手
JP2005090605A (ja) * 2003-09-16 2005-04-07 Riken Corp 管継手
CN201462254U (zh) * 2009-09-08 2010-05-12 新兴铸管股份有限公司 一种倒刺式钢塑复合压力管用管件
CN201672188U (zh) * 2010-05-10 2010-12-15 王莘 沟槽连接用衬塑钢管

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104879580A (zh) * 2015-06-19 2015-09-02 李俊伟 耐高压防渗漏金属密封卡箍锁紧式大直径管路连接装置
CN104964109A (zh) * 2015-06-19 2015-10-07 李俊伟 一种卡箍锁紧式双接触面金属密封耐压防渗管路连接装置
CN105333252A (zh) * 2015-12-11 2016-02-17 浙江康帕斯流体输送技术有限公司 一种管接头
CN105333252B (zh) * 2015-12-11 2020-11-03 浙江康帕斯流体技术股份有限公司 一种管接头
CN106439302A (zh) * 2016-10-18 2017-02-22 刘之华 双密封式管道连接结构
CN111076009A (zh) * 2018-10-19 2020-04-28 青岛尚禹环境科技有限公司 钢管快速连接箍及生产方法
CN111828154A (zh) * 2020-07-21 2020-10-27 宁波经济技术开发区恒阳机械有限公司 一种锁紧卡箍及安装方法
CN111828154B (zh) * 2020-07-21 2022-07-19 宁波经济技术开发区恒阳机械有限公司 一种锁紧卡箍及安装方法

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