CN113685650B - Plugging device of petroleum pipeline - Google Patents
Plugging device of petroleum pipeline Download PDFInfo
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- CN113685650B CN113685650B CN202110939613.1A CN202110939613A CN113685650B CN 113685650 B CN113685650 B CN 113685650B CN 202110939613 A CN202110939613 A CN 202110939613A CN 113685650 B CN113685650 B CN 113685650B
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- 239000003208 petroleum Substances 0.000 title claims description 14
- 238000007789 sealing Methods 0.000 claims abstract description 100
- 210000000078 claw Anatomy 0.000 claims abstract description 37
- 238000000034 method Methods 0.000 claims abstract description 15
- 241000935974 Paralichthys dentatus Species 0.000 claims description 14
- 210000004907 gland Anatomy 0.000 claims description 9
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 238000003780 insertion Methods 0.000 description 10
- 230000037431 insertion Effects 0.000 description 10
- 230000000903 blocking effect Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 101001121408 Homo sapiens L-amino-acid oxidase Proteins 0.000 description 1
- 102100026388 L-amino-acid oxidase Human genes 0.000 description 1
- 101100012902 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) FIG2 gene Proteins 0.000 description 1
- 101100233916 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) KAR5 gene Proteins 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000000805 composite resin Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Classifications
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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
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
- F16L55/1612—Devices for covering leaks in pipes or hoses, e.g. hose-menders by means of a plug
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pipe Accessories (AREA)
Abstract
本发明提供了一种石油管道的封堵装置，涉及石油传输技术领域。所述封堵装置包括：插杆、锚爪、内密封环、外密封环、紧固筒和驱动组件。本发明中，所述封堵装置封堵泄漏穿孔的过程中，插杆插入泄漏的穿孔，石油管道内的压力通过驱动组件驱动锚爪张开，此时将内密封环通过穿孔塞入石油管道内，调整插杆的位置使得石油流动产生的推力也对驱动组件做功，驱动锚爪闭合，将内密封环压紧在石油管道的内壁；旋紧紧固筒，使得外密封环紧贴石油管道外壁；实现对泄漏穿孔的内外双重封堵，且石油管道内的压力越大、石油流速越快，封堵越可靠，有效避免了二次泄露。
The present invention provides a plugging device for an oil pipeline, and relates to the technical field of oil transmission. The plugging device comprises: an insert rod, an anchor claw, an inner sealing ring, an outer sealing ring, a fastening cylinder and a driving assembly. In the present invention, during the process of plugging the leaking perforation by the plugging device, the insert rod is inserted into the leaking perforation, and the pressure in the oil pipeline drives the anchor claw to open through the driving assembly, at which time the inner sealing ring is inserted into the oil pipeline through the perforation, and the position of the insert rod is adjusted so that the thrust generated by the oil flow also works on the driving assembly, driving the anchor claw to close and pressing the inner sealing ring against the inner wall of the oil pipeline; tightening the fastening cylinder so that the outer sealing ring is tightly attached to the outer wall of the oil pipeline; achieving internal and external double plugging of the leaking perforation, and the greater the pressure in the oil pipeline and the faster the oil flow rate, the more reliable the plugging, and effectively avoiding secondary leakage.
Description
技术领域Technical Field
本发明涉及石油传输技术领域，具体涉及一种石油管道的封堵装置。The invention relates to the technical field of petroleum transmission, and in particular to a plugging device for a petroleum pipeline.
背景技术Background Art
压力输送管道是石油传输的重要设施，由于腐蚀和第三方破坏等原因，石油管道会出现穿孔泄漏的情况。石油的泄漏不但污染环境，也危害群众生命财产安全。因此在石油管道发生穿孔泄漏时需要及时进行抢修，以降低损失、避免危害。Pressure transmission pipelines are important facilities for oil transmission. Due to corrosion and third-party damage, oil pipelines may be perforated and leak. Oil leakage not only pollutes the environment, but also endangers the safety of people's lives and property. Therefore, when a perforation or leakage occurs in an oil pipeline, it is necessary to repair it in time to reduce losses and avoid harm.
当前石油管道穿孔泄漏的抢修工具主要是卡箍式卡具和缠绕式纤维树脂复合材料抢修工具，前者为刚性卡，后者为柔性卡。刚性卡一般为两个对称的半圆筒，从管道两侧安装后采用螺栓将两个半圆筒紧固，对泄漏的管道和容器在穿孔处进行360°覆盖，卡具的两端采取密封措施，使介质密封在内、无法外泄。缠绕式抢修工具则是以碳纤维或芳纶纤维等高强度纤维为主体结构，浸润树脂后在穿孔处的管道环向缠绕若干匝，完成对穿孔的封堵。At present, the emergency repair tools for oil pipeline perforation and leakage are mainly clamp-type fixtures and winding fiber resin composite repair tools. The former is a rigid clamp and the latter is a flexible clamp. The rigid clamp is generally two symmetrical semi-cylinders. After being installed from both sides of the pipeline, the two semi-cylinders are fastened with bolts to cover the leaking pipeline and container 360° at the perforation. Sealing measures are taken at both ends of the fixture to seal the medium inside and prevent it from leaking out. The winding repair tool uses high-strength fibers such as carbon fiber or aramid fiber as the main structure. After being impregnated with resin, it is circumferentially wound around the pipeline at the perforation for several turns to complete the plugging of the perforation.
但是，这两类抢修卡具都是通过在管道外部施加作用力来完成对穿孔泄漏的封堵，在管道内部压力的作用下存在二次泄露风险。However, both types of emergency repair fixtures seal the perforation leak by applying force on the outside of the pipeline, and there is a risk of secondary leakage due to the pressure inside the pipeline.
发明内容Summary of the invention
(一)解决的技术问题1. Technical issues to be solved
针对现有技术的不足，本发明提供了一种石油管道的封堵装置，解决了石油管道的封堵装置容易二次泄露的问题。In view of the deficiencies in the prior art, the present invention provides a plugging device for an oil pipeline, which solves the problem that the plugging device for an oil pipeline is prone to secondary leakage.
(二)技术方案(II) Technical solution
为实现以上目的，本发明通过以下技术方案予以实现：To achieve the above objectives, the present invention is implemented through the following technical solutions:
一种石油管道的封堵装置，所述封堵装置包括：A plugging device for a petroleum pipeline, the plugging device comprising:
插杆，所述插杆的侧壁开设有若干沿轴向设置的容纳槽；An insert rod, wherein a side wall of the insert rod is provided with a plurality of accommodating grooves arranged along the axial direction;
锚爪，所述锚爪通过水平设置的转轴安装在容纳槽内；Anchor claw, the anchor claw is installed in the receiving groove through a horizontally arranged rotating shaft;
内密封环和外密封环，所述内密封环和外密封环都密封套设在插杆外壁；An inner sealing ring and an outer sealing ring, wherein both the inner sealing ring and the outer sealing ring are sealingly sleeved on the outer wall of the plug rod;
紧固筒，所述紧固筒与插杆外壁螺纹连接；A fastening tube, the fastening tube being threadedly connected to the outer wall of the insertion rod;
驱动组件，所述驱动组件设置在插杆的头端，通过石油管道内的压力和石油流动产生的推力驱动锚爪张开与闭合。The driving assembly is arranged at the head end of the insertion rod, and drives the anchor claw to open and close through the thrust generated by the pressure in the oil pipeline and the oil flow.
优选的，所述驱动组件包括：压盖、胶头、气腔、气道和驱动钩；所述气腔开设在插杆的头端，胶头密封安装在气腔的头端开口处，压盖设置在胶头的上方，且其连接侧与插杆的头端铰接，气道连通气腔与容纳槽，驱动钩容纳在气道内，且能够沿气道自由滑动。Preferably, the drive assembly includes: a pressure cap, a rubber head, an air cavity, an airway and a drive hook; the air cavity is opened at the head end of the insertion rod, the rubber head is seal-mounted at the head end opening of the air cavity, the pressure cap is arranged above the rubber head, and its connecting side is hinged to the head end of the insertion rod, the airway connects the air cavity and the receiving groove, the drive hook is received in the airway, and can slide freely along the airway.
优选的，所述驱动钩的末端设置有活塞头。Preferably, a piston head is provided at the end of the driving hook.
优选的，所述锚爪内固设有齿轮，所述齿轮能够带动锚爪绕转轴自由旋转；所述驱动钩的钩头内壁设置有张开齿条，钩身内壁设置有闭合齿条；所述驱动钩向上滑动的过程中，张开齿条先与齿轮啮合，驱动锚爪张开；待锚爪完全张开，张开齿条与齿轮脱离，闭合齿条与齿轮啮合，驱动锚爪闭合。Preferably, a gear is fixed in the anchor claw, and the gear can drive the anchor claw to rotate freely around the rotating shaft; the inner wall of the hook head of the driving hook is provided with an opening rack, and the inner wall of the hook body is provided with a closing rack; in the process of the driving hook sliding upward, the opening rack first meshes with the gear to drive the anchor claw to open; when the anchor claw is fully opened, the opening rack disengages from the gear, and the closing rack meshes with the gear to drive the anchor claw to close.
优选的，所述锚爪上方开设有滑槽，所述驱动钩容纳在滑槽内，且能够沿滑槽自由滑动。Preferably, a slide groove is provided above the fluke, and the driving hook is accommodated in the slide groove and can slide freely along the slide groove.
优选的，所述插杆外壁设置有用于调整插杆方向的标记，在需要锚爪闭合时，将压盖的连接侧朝向石油管道的上游方向。Preferably, the outer wall of the plug rod is provided with a mark for adjusting the direction of the plug rod, and when the anchor claw needs to be closed, the connection side of the gland is directed toward the upstream direction of the oil pipeline.
优选的，所述容纳槽的末端开设有轴向延伸的密封滑槽，所述内密封环的末端侧设置有第一密封台阶，内密封环和第一密封台阶的内壁设置有与密封滑槽一一对应的第一密封块，第一密封块容纳在密封滑槽内。Preferably, an axially extending sealing groove is provided at the end of the accommodating groove, a first sealing step is provided at the end side of the inner sealing ring, and the inner walls of the inner sealing ring and the first sealing step are provided with first sealing blocks corresponding to the sealing groove one by one, and the first sealing block is accommodated in the sealing groove.
优选的，外密封环的末端侧设置有第二密封台阶，外密封环和第二密封台阶的内壁设置有与密封滑槽一一对应的第二密封块，第二密封块容纳在密封滑槽内；外密封环的头端开设有让位槽，第一密封台阶能够容纳在让位槽内。Preferably, a second sealing step is provided on the end side of the outer sealing ring, and second sealing blocks corresponding to the sealing groove are provided on the inner walls of the outer sealing ring and the second sealing step, and the second sealing block is accommodated in the sealing groove; a clearance groove is provided at the head end of the outer sealing ring, and the first sealing step can be accommodated in the clearance groove.
(三)有益效果(III) Beneficial effects
本发明提供了一种石油管道的封堵装置。与现有技术相比，具备以下有益效果：The present invention provides a plugging device for a petroleum pipeline. Compared with the prior art, it has the following beneficial effects:
本发明中，所述封堵装置封堵泄漏穿孔的过程中，插杆插入泄漏的穿孔，石油管道内的压力通过驱动组件驱动锚爪张开，此时将内密封环通过穿孔塞入石油管道内，调整插杆的位置使得石油流动产生的推力也对驱动组件做功，驱动锚爪闭合，将内密封环压紧在石油管道的内壁；旋紧紧固筒，使得外密封环紧贴石油管道外壁；实现对泄漏穿孔的内外双重封堵，且石油管道内的压力越大、石油流速越快，封堵越可靠，有效避免了二次泄露。In the present invention, during the process of plugging the leaking perforation by the plugging device, the plugging rod is inserted into the leaking perforation, and the pressure in the oil pipeline drives the anchor claw to open through the driving component. At this time, the inner sealing ring is inserted into the oil pipeline through the perforation, and the position of the plugging rod is adjusted so that the thrust generated by the oil flow also works on the driving component, driving the anchor claw to close and pressing the inner sealing ring against the inner wall of the oil pipeline; the tightening cylinder is tightened so that the outer sealing ring is tightly attached to the outer wall of the oil pipeline; the internal and external double plugging of the leaking perforation is realized, and the greater the pressure in the oil pipeline and the faster the oil flow rate, the more reliable the plugging is, and secondary leakage is effectively avoided.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
图1为本发明实施例中封堵装置的内部结构示意图；FIG1 is a schematic diagram of the internal structure of a blocking device according to an embodiment of the present invention;
图2为本发明实施例中封堵状态下的封堵装置内部结构示意图；FIG2 is a schematic diagram of the internal structure of the blocking device in a blocking state according to an embodiment of the present invention;
图3为图1中A处的放大图。FIG. 3 is an enlarged view of point A in FIG. 1 .
具体实施方式DETAILED DESCRIPTION
为使本发明实施例的目的、技术方案和优点更加清楚，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
本申请实施例通过提供一种石油管道的封堵装置，解决了石油管道的封堵装置容易二次泄露的问题。The embodiment of the present application solves the problem that the plugging device of the oil pipeline is prone to secondary leakage by providing a plugging device of the oil pipeline.
本申请实施例中的技术方案为解决上述技术问题，总体思路如下：The technical solution in the embodiment of the present application is to solve the above technical problems, and the overall idea is as follows:
本发明实施例中，所述封堵装置封堵泄漏穿孔的过程中，插杆插入泄漏的穿孔，石油管道内的压力通过驱动组件驱动锚爪张开，此时将内密封环通过穿孔塞入石油管道内，调整插杆的位置使得石油流动产生的推力也对驱动组件做功，驱动锚爪闭合，将内密封环压紧在石油管道的内壁；旋紧紧固筒，使得外密封环紧贴石油管道外壁；实现对泄漏穿孔的内外双重封堵，且石油管道内的压力越大、石油流速越快，封堵越可靠，有效避免了二次泄露。In the embodiment of the present invention, during the process of the plugging device plugging the leaking perforation, the rod is inserted into the leaking perforation, and the pressure in the oil pipeline drives the anchor claw to open through the driving component. At this time, the inner sealing ring is inserted into the oil pipeline through the perforation, and the position of the rod is adjusted so that the thrust generated by the oil flow also works on the driving component, driving the anchor claw to close and pressing the inner sealing ring against the inner wall of the oil pipeline; the tightening cylinder is tightened so that the outer sealing ring is tightly attached to the outer wall of the oil pipeline; the internal and external double plugging of the leaking perforation is realized, and the greater the pressure in the oil pipeline and the faster the oil flow rate, the more reliable the plugging is, and secondary leakage is effectively avoided.
并且，所述封堵装置通过若干锚爪将内密封环按压在石油管道内壁，锚爪都是通过气腔内的气压驱动闭合的，因此不同的锚爪能够定位到不同的闭合角度，使得内密封环能够更加贴合石油管道内壁的弧度，密封效果更好。Furthermore, the plugging device presses the inner sealing ring against the inner wall of the oil pipeline through a plurality of anchor claws, and the anchor claws are driven to close by the air pressure in the air cavity, so different anchor claws can be positioned at different closing angles, so that the inner sealing ring can better fit the curvature of the inner wall of the oil pipeline, and the sealing effect is better.
为了更好的理解上述技术方案，下面将结合说明书附图以及具体的实施方式对上述技术方案进行详细的说明。In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.
实施例：Example:
如图1、图2所示，本发明提供了一种石油管道的封堵装置，所述封堵装置包括：As shown in FIG. 1 and FIG. 2 , the present invention provides a plugging device for a petroleum pipeline, the plugging device comprising:
插杆10，所述插杆10的侧壁开设有若干沿轴向设置的容纳槽11；An insert rod 10, wherein a side wall of the insert rod 10 is provided with a plurality of accommodating grooves 11 arranged along the axial direction;
锚爪20，所述锚爪20通过水平设置的转轴21安装在容纳槽11内；Anchor claw 20, the anchor claw 20 is installed in the receiving groove 11 through a horizontally arranged rotating shaft 21;
内密封环30和外密封环40，所述内密封环30和外密封环40都密封套设在插杆10外壁；An inner sealing ring 30 and an outer sealing ring 40, wherein both the inner sealing ring 30 and the outer sealing ring 40 are sealingly sleeved on the outer wall of the insertion rod 10;
紧固筒50，所述紧固筒50与插杆10外壁螺纹连接；A fastening tube 50, wherein the fastening tube 50 is threadedly connected to the outer wall of the insertion rod 10;
驱动组件，所述驱动组件设置在插杆10的头端，通过石油管道内的压力和石油流动产生的推力驱动锚爪20张开与闭合。The driving assembly is arranged at the head end of the insertion rod 10, and drives the anchor claw 20 to open and close through the thrust generated by the pressure in the oil pipeline and the oil flow.
所述封堵装置封堵泄漏穿孔的过程中，插杆10插入泄漏的穿孔，石油管道内的压力通过驱动组件驱动锚爪20张开，此时将内密封环30通过穿孔塞入石油管道内，调整插杆10的位置使得石油流动产生的推力也对驱动组件做功，驱动锚爪20闭合，将内密封环30压紧在石油管道的内壁；旋紧紧固筒50，使得外密封环40紧贴石油管道外壁；实现对泄漏穿孔的内外双重封堵，且石油管道内的压力越大、石油流速越快，封堵越可靠，有效避免了二次泄露。During the process of plugging the leaking perforation with the plugging device, the plugging rod 10 is inserted into the leaking perforation, and the pressure in the oil pipeline drives the anchor claw 20 to open through the driving assembly. At this time, the inner sealing ring 30 is inserted into the oil pipeline through the perforation, and the position of the plugging rod 10 is adjusted so that the thrust generated by the oil flow also works on the driving assembly, driving the anchor claw 20 to close and pressing the inner sealing ring 30 against the inner wall of the oil pipeline; tightening the fastening cylinder 50 so that the outer sealing ring 40 is in close contact with the outer wall of the oil pipeline; realizing the internal and external double plugging of the leaking perforation, and the greater the pressure in the oil pipeline and the faster the oil flow rate, the more reliable the plugging, and effectively avoiding secondary leakage.
如图1、图2所示，所述驱动组件包括：压盖61、胶头62、气腔63、气道64和驱动钩65；所述气腔63开设在插杆10的头端，胶头62密封安装在气腔63的头端开口处，压盖61设置在胶头62的上方，且其连接侧与插杆10的头端铰接，气道64连通气腔63与容纳槽11，驱动钩65容纳在气道64内，且能够沿气道64自由滑动。As shown in Figures 1 and 2, the drive assembly includes: a pressure cap 61, a rubber head 62, an air cavity 63, an air channel 64 and a drive hook 65; the air cavity 63 is opened at the head end of the insertion rod 10, and the rubber head 62 is sealed and installed at the head end opening of the air cavity 63. The pressure cap 61 is arranged above the rubber head 62, and its connecting side is hinged to the head end of the insertion rod 10. The air channel 64 connects the air cavity 63 and the receiving groove 11. The drive hook 65 is accommodated in the air channel 64 and can slide freely along the air channel 64.
如图3所示，所述驱动钩65的末端设置有活塞头66，使得驱动组件在石油管道内压力和石油流动产生的推力作用下，驱动钩65沿气道64向上滑动。As shown in FIG. 3 , a piston head 66 is disposed at the end of the driving hook 65 , so that the driving hook 65 slides upward along the air passage 64 under the thrust generated by the pressure in the oil pipeline and the oil flow.
如图3所示，所述锚爪20内固设有齿轮22，所述齿轮22能够带动锚爪20绕转轴21自由旋转；所述驱动钩65的钩头内壁设置有张开齿条67，钩身内壁设置有闭合齿条68；所述驱动钩65向上滑动的过程中，张开齿条67先与齿轮22啮合，驱动锚爪20张开；待锚爪20完全张开，张开齿条67与齿轮22脱离，闭合齿条68与齿轮22啮合，驱动锚爪20闭合。As shown in FIG3 , a gear 22 is fixedly disposed inside the fluke 20, and the gear 22 can drive the fluke 20 to freely rotate around the rotating shaft 21; an opening rack 67 is disposed on the inner wall of the hook head of the driving hook 65, and a closing rack 68 is disposed on the inner wall of the hook body; during the upward sliding process of the driving hook 65, the opening rack 67 first meshes with the gear 22 to drive the fluke 20 to open; when the fluke 20 is fully opened, the opening rack 67 disengages from the gear 22, and the closing rack 68 meshes with the gear 22 to drive the fluke 20 to close.
如图3所示，所述锚爪20上方开设有滑槽12，所述驱动钩65容纳在滑槽12内，且能够沿滑槽12自由滑动。As shown in FIG. 3 , a slide groove 12 is provided above the fluke 20 , and the driving hook 65 is accommodated in the slide groove 12 and can slide freely along the slide groove 12 .
如图1、图2所示，所述插杆10外壁设置有用于调整插杆10方向的标记13，在需要锚爪20闭合时，将压盖61的连接侧朝向石油管道的上游方向。As shown in FIG. 1 and FIG. 2 , the outer wall of the plug rod 10 is provided with a mark 13 for adjusting the direction of the plug rod 10 . When the anchor claw 20 needs to be closed, the connection side of the gland 61 is directed toward the upstream direction of the oil pipeline.
如图1、图2所示，所述容纳槽11的末端开设有轴向延伸的密封滑槽14，所述内密封环30的末端侧设置有第一密封台阶31，内密封环30和第一密封台阶31的内壁设置有与密封滑槽14一一对应的第一密封块32，第一密封块32容纳在密封滑槽14内；防止内密封环30滑入容纳槽11导致其与插杆10的密封失效。As shown in Figures 1 and 2, an axially extending sealing groove 14 is provided at the end of the receiving groove 11, a first sealing step 31 is provided at the end side of the inner sealing ring 30, and the inner walls of the inner sealing ring 30 and the first sealing step 31 are provided with first sealing blocks 32 corresponding to the sealing groove 14 one by one, and the first sealing blocks 32 are accommodated in the sealing groove 14, so as to prevent the inner sealing ring 30 from sliding into the receiving groove 11 and causing failure of the seal between it and the insertion rod 10.
如图1、图2所示，外密封环40的末端侧设置有第二密封台阶41，外密封环40和第二密封台阶41的内壁设置有与密封滑槽14一一对应的第二密封块42，第二密封块42容纳在密封滑槽14内；外密封环40的头端开设有让位槽43，需要封堵的石油管道管壁很薄时，第一密封台阶31能够容纳在让位槽43内，防止第一密封台阶31与外密封环40相互抵触影响封堵效果。As shown in Figures 1 and 2, a second sealing step 41 is provided at the end side of the outer sealing ring 40, and the inner walls of the outer sealing ring 40 and the second sealing step 41 are provided with a second sealing block 42 corresponding to the sealing groove 14 one by one, and the second sealing block 42 is accommodated in the sealing groove 14; a make way groove 43 is provided at the head end of the outer sealing ring 40, and when the wall of the oil pipeline to be blocked is very thin, the first sealing step 31 can be accommodated in the make way groove 43 to prevent the first sealing step 31 and the outer sealing ring 40 from conflicting with each other and affecting the blocking effect.
所述封堵装置的使用过程中，保持压盖61的连接侧朝向与石油管道的轴向垂直，将插杆10插入泄露穿孔，石油管道内的压力作用在压盖61上，驱动锚爪20张开，此时将内密封环30通过穿孔塞入石油管道内，抵触在张开的锚爪20下方；然后调整插杆10的位置，使得压盖61的连接侧朝向石油管道的上游方向，旋紧紧固筒50使得外密封环40紧贴石油管道外壁；实现对泄漏穿孔的内外双重封堵，且石油管道内的压力越大、石油流速越快，封堵越可靠，有效避免了二次泄露。During the use of the plugging device, the connection side of the gland 61 is kept perpendicular to the axial direction of the oil pipeline, and the rod 10 is inserted into the leaking perforation. The pressure in the oil pipeline acts on the gland 61 to drive the anchor claw 20 to open. At this time, the inner sealing ring 30 is inserted into the oil pipeline through the perforation and abuts against the bottom of the opened anchor claw 20; then the position of the rod 10 is adjusted so that the connection side of the gland 61 faces the upstream direction of the oil pipeline, and the tightening cylinder 50 is tightened so that the outer sealing ring 40 is close to the outer wall of the oil pipeline; the internal and external double plugging of the leaking perforation is realized, and the greater the pressure in the oil pipeline and the faster the oil flow rate, the more reliable the plugging, which effectively avoids secondary leakage.
并且，所述封堵装置通过若干锚爪20将内密封环30按压在石油管道内壁，锚爪20都是通过气腔63内的气压驱动闭合的，因此不同的锚爪20能够定位到不同的闭合角度，使得内密封环30能够更加贴合石油管道内壁的弧度，密封效果更好。Furthermore, the plugging device presses the inner sealing ring 30 against the inner wall of the oil pipeline through a plurality of anchor claws 20, and the anchor claws 20 are all driven to close by the air pressure in the air cavity 63, so different anchor claws 20 can be positioned at different closing angles, so that the inner sealing ring 30 can better fit the curvature of the inner wall of the oil pipeline, and the sealing effect is better.
综上所述，与现有技术相比，本发明具备以下有益效果：In summary, compared with the prior art, the present invention has the following beneficial effects:
1、本发明实施例中，所述封堵装置封堵泄漏穿孔的过程中，插杆插入泄漏的穿孔，石油管道内的压力通过驱动组件驱动锚爪张开，此时将内密封环通过穿孔塞入石油管道内，调整插杆的位置使得石油流动产生的推力也对驱动组件做功，驱动锚爪闭合，将内密封环压紧在石油管道的内壁；旋紧紧固筒，使得外密封环紧贴石油管道外壁；实现对泄漏穿孔的内外双重封堵，且石油管道内的压力越大、石油流速越快，封堵越可靠，有效避免了二次泄露。1. In the embodiment of the present invention, during the process of plugging the leaking perforation by the plugging device, the plugging rod is inserted into the leaking perforation, and the pressure in the oil pipeline drives the anchor claw to open through the driving assembly. At this time, the inner sealing ring is inserted into the oil pipeline through the perforation, and the position of the plugging rod is adjusted so that the thrust generated by the oil flow also works on the driving assembly, driving the anchor claw to close and pressing the inner sealing ring against the inner wall of the oil pipeline; the tightening cylinder is tightened so that the outer sealing ring is tightly attached to the outer wall of the oil pipeline; the internal and external double plugging of the leaking perforation is realized, and the greater the pressure in the oil pipeline and the faster the oil flow rate, the more reliable the plugging is, and secondary leakage is effectively avoided.
2、本发明实施例中，所述封堵装置通过若干锚爪将内密封环按压在石油管道内壁，锚爪都是通过气腔内的气压驱动闭合的，因此不同的锚爪能够定位到不同的闭合角度，使得内密封环能够更加贴合石油管道内壁的弧度，密封效果更好。2. In the embodiment of the present invention, the plugging device presses the inner sealing ring against the inner wall of the oil pipeline through a plurality of anchor claws, and the anchor claws are driven to close by the air pressure in the air cavity, so different anchor claws can be positioned at different closing angles, so that the inner sealing ring can better fit the curvature of the inner wall of the oil pipeline, and the sealing effect is better.
需要说明的是，在本文中，诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来，而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者设备所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括所述要素的过程、方法、物品或者设备中还存在另外的相同要素。It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.
以上实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.
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| CN200943799Y (en) * | 2006-08-28 | 2007-09-05 | 渤海船舶重工有限责任公司 | Plugging device for pipe pressing |
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| CN103090185A (en) * | 2013-01-04 | 2013-05-08 | 张维芳 | Full-automatic under-pressure gas firefighting plugging device |
| CN104295898A (en) * | 2013-07-16 | 2015-01-21 | 中国人民武装警察部队学院 | Unfolding type internal-buckling type leaking stoppage tool |
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