CN111219548A - Self-adaptive connecting flange and connecting method - Google Patents

Self-adaptive connecting flange and connecting method Download PDF

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Publication number
CN111219548A
CN111219548A CN202010174724.3A CN202010174724A CN111219548A CN 111219548 A CN111219548 A CN 111219548A CN 202010174724 A CN202010174724 A CN 202010174724A CN 111219548 A CN111219548 A CN 111219548A
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CN
China
Prior art keywords
flange
pipe body
elastic sealing
adaptive
sealing ring
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Pending
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CN202010174724.3A
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Chinese (zh)
Inventor
孙吉鹏
张鹏飞
王晓明
赵彬
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Weihai Haiwang Technology Co Ltd
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Weihai Haiwang Technology Co Ltd
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Priority to CN202010174724.3A priority Critical patent/CN111219548A/en
Publication of CN111219548A publication Critical patent/CN111219548A/en
Pending legal-status Critical Current

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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
    • F16L23/00—Flanged joints
    • F16L23/02—Flanged joints the flanges being connected by members tensioned axially
    • F16L23/024—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes
    • 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
    • F16L23/00—Flanged joints
    • F16L23/16—Flanged joints characterised by the sealing means
    • F16L23/18—Flanged joints characterised by the sealing means the sealing means being rings
    • F16L23/22—Flanged joints characterised by the sealing means the sealing means being rings made exclusively of a material other than metal

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Flanged Joints, Insulating Joints, And Other Joints (AREA)

Abstract

The invention relates to the technical field of pipeline connecting flanges, in particular to a self-adaptive connecting flange and a connecting method, which are provided with a pipe body, and are characterized in that self-adaptive adjusting flange components are respectively arranged at one end or two ends of the pipe body, each self-adaptive adjusting flange component consists of a check ring, an elastic sealing ring and a movable flange plate, the check ring is arranged at the end part of the pipe body and is connected with the outer wall of the pipe body, the elastic sealing ring and the movable flange plate are sequentially arranged on the side surface of the check ring far away from the end part of the pipe body, a clamping groove for accommodating the check ring and the elastic sealing ring is arranged on the inner wall of the movable flange plate, the inner side of the clamping groove on the movable flange plate and the side close to the accommodating check ring are in an open shape, the movable flange plate is sleeved on, Adjustable length, good sealing performance and the like.

Description

Self-adaptive connecting flange and connecting method
Technical Field
The invention relates to the technical field of pipeline connecting flanges, in particular to a self-adaptive connecting flange with simple structure, adjustable length and good sealing performance and a connecting method.
Background
At present, hard pipeline is maintaining when changing and must change hard pipeline, after the pipeline is dismantled, because pipeline both ends sealing washer loses bolt extrusion and resumes elasticity, can be very labouring when installing the pipeline once more, improper installation can appear even and cause the sealed not tight condition of causing, and at the in-process of changing, change and need tailor again, this will cause to have the clearance between the pipeline of rewelding flange on the pipeline, especially when installing between two pipelines, need guarantee that preceding pipeline and pipeline at the back can both be inseparable with change pipe connection, because pipeline length is unadjustable, consequently, very easily influence the leakproofness of changing efficiency and connection.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide the self-adaptive connecting flange and the connecting method which are simple in structure, adjustable in length and good in sealing performance.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a self-adaptive connecting flange is provided with a pipe body and is characterized in that a self-adaptive adjusting flange component is respectively arranged at one end or two ends of the pipe body and consists of a check ring, an elastic sealing ring and a movable flange plate, the check ring is arranged at the end part of the pipe body and is connected with the outer wall of the pipe body, the elastic sealing ring and the movable flange plate are sequentially arranged on the side surface of the check ring away from the end part of the pipe body, a clamping groove for containing the check ring and the elastic sealing ring is arranged on the inner wall of the movable flange plate, the inner side of the clamping groove on the movable flange plate and the side close to the containing check ring are arranged in an open shape, the movable flange plate is sleeved at the outer sides of the check ring, the elastic sealing ring and the pipe body through the clamping groove, connecting holes are arranged at, the movable flange plate is locked by the connecting bolts to extrude the elastic sealing ring to move outwards so as to realize the tight connection of the adjacent pipe bodies.
The self-adaptive adjusting flange assembly is arranged at one end of the pipe body, the fixing flange plate is arranged at the other end of the pipe body, the inner end of the fixing flange plate is connected with the outer wall of the end part of the pipe body, the fixing flange plate is provided with a connecting hole, and the adjacent pipe bodies are connected through the connecting hole between the adjacent pipe bodies and a connecting bolt in the connecting hole.
The elastic sealing ring is a detachable elastic sealing ring, and the adjustment of different compression amounts is realized by replacing elastic sealing rings with different thicknesses and elasticity, so that the sealing connection suitable for different gaps between pipe bodies is realized.
The elastic coefficient of the elastic sealing ring is more than 80%, and the thickness of the elastic sealing ring is 10-20 mm.
A connection method of an adaptive flange is characterized by comprising the following steps:
(1): selecting an adaptive flange: selecting a proper self-adaptive flange according to the length of the replaced pipe body, wherein the self-adaptive flange is selected to be that one end of the pipe body is provided with a self-adaptive adjusting flange component or both ends of the pipe body are provided with self-adaptive adjusting flange components;
(2): connecting: the both ends of the body among the self-adaptation regulation flange subassembly are butt joint respectively at corresponding change position, with the sealed pad of loose flange dish and side or fixed flange dish side installation, after rethread connecting bolt passed the connecting hole, realize the preliminary location of self-adaptation flange, then progressively lock connecting bolt again, because at the in-process that connecting bolt screwed up, the elastic seal circle between loose flange dish and the retaining ring is compressed, the connecting bolt pretightning force is big more, then the elastic seal circle is pressed more tightly, the flexible longer of pipeline of change, the sealed pad of the former pipeline both ends of cooperation simultaneously, can reach taut leakproofness better more, simultaneously because the loose flange dish, be in the atress compression state between retaining ring and the elastic seal circle, the leakproofness of pipeline has been guaranteed.
The self-adaptive adjusting flange component is arranged at one end or two ends of the pipe body respectively and consists of a check ring, an elastic sealing ring and a movable flange plate, the check ring is arranged at the end part of the pipe body and is connected with the outer wall of the pipe body, the elastic sealing ring and the movable flange plate are sequentially arranged on the side surface of the check ring away from the end part of the pipe body, a clamping groove for accommodating the check ring and the elastic sealing ring is arranged on the inner wall of the movable flange plate, the inner side of the clamping groove on the movable flange plate and the side close to the accommodating check ring are arranged in an opening shape, the movable flange plate is sleeved on the outer sides of the check ring, the elastic sealing ring and the pipe body through the clamping groove, a connecting hole is arranged on the outer side of the movable flange plate, adjacent pipe bodies penetrate through the connecting hole on the flange plate through a connecting bolt to realize the connection The one end of body be equipped with self-adaptation regulation flange subassembly, the other end of body is equipped with mounting flange dish, mounting flange dish's the inner is connected with the outer wall of body tip, is equipped with the connecting hole on the mounting flange dish, realizes the connection of adjacent body through the connecting hole between the adjacent body and the connecting bolt in the connecting hole, elastic seal establish to detachable elastic seal circle, realize the regulation of different compressional capacities through changing different thickness and elastic seal circle, and then realize the sealing connection of different clearances between the adaptation body, elastic seal circle's coefficient of elasticity > 80%, elastic seal circle's thickness is 10-20mm, have advantages such as simple structure, adjustable length, leakproofness are good.
Drawings
FIG. 1 is a schematic diagram of a set of adaptive adjustment flange assemblies of the present invention.
Fig. 2 is a schematic structural diagram of the two-set adaptive adjustment flange assembly of the present invention.
Fig. 3 is a structural view of a connection mode of the replacement pipe body of fig. 1.
Fig. 4 is a structural view of a connection mode of the replacement pipe body of fig. 2.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
as shown in the attached drawings, the self-adaptive connecting flange is provided with a pipe body 1 and is characterized in that one end or two ends of the pipe body 1 are respectively provided with a self-adaptive adjusting flange component, the self-adaptive adjusting flange component consists of a retainer ring 2, an elastic sealing ring 3 and a movable flange plate 4, the retainer ring 2 is arranged at the end part of the pipe body 1 and is connected with the outer wall of the pipe body 1, the side surface of the retainer ring 2, which is far away from the end part of the pipe body 1, is sequentially provided with the elastic sealing ring 3 and the movable flange plate 4, the inner wall of the movable flange plate 4 is provided with a clamping groove 5 for accommodating the retainer ring 2 and the elastic sealing ring 3, the inner side and the side, which is close to the accommodating retainer ring 2, of the movable flange plate 4 are arranged in an opening shape, the movable flange plate 4 is sleeved at the outer sides, the adjacent pipe bodies penetrate through the connecting holes 6 on the flange plates through the connecting bolts to realize the connection of the adjacent pipe bodies 1, the movable flange plates 4 extrude the elastic sealing rings 3 to realize the outward movement of the movable flange plates 4 and further realize the tight connection of the adjacent pipe bodies through the locking of the connecting bolts, one end of each pipe body 1 is provided with a self-adaptive adjusting flange component, the other end of each pipe body 1 is provided with a fixed flange plate 7, the inner end of each fixed flange plate 7 is connected with the outer wall of the end part of each pipe body 1, the connecting holes 6 are arranged on the fixed flange plates 7, the connection of the adjacent pipe bodies 1 is realized through the connecting holes 6 between the adjacent pipe bodies 1 and the connecting bolts in the connecting holes 6, the elastic sealing rings 3 are arranged into detachable elastic sealing rings 3, the adjustment of different compression amounts is realized through replacing the elastic sealing rings 3 with different, the elastic coefficient of the elastic sealing ring is more than 80%, the thickness of the elastic sealing ring is 10-20mm, and the connecting method comprises the following steps: (1): selecting an adaptive flange: selecting a proper self-adaptive flange according to the length of the replaced pipe body 1, wherein the self-adaptive flange is selected to be that one end of the pipe body 1 is provided with a self-adaptive adjusting flange component or both ends of the pipe body 1 are provided with self-adaptive adjusting flange components; (2): connecting: the two ends of a pipe body 1 in the self-adaptive adjusting flange assembly are respectively butted at corresponding replacement parts, a movable flange plate 4 and a side surface or a fixed flange plate 7 are provided with sealing gaskets, and then after a connecting bolt penetrates through a connecting hole 6, the primary positioning of the self-adaptive flange is realized, and then the connecting bolt is gradually locked.
When the pipeline needs to be replaced, after the self-adaptive connecting flange is connected with an original pipeline flange through bolts, the elastic sealing ring 3 between the movable flange 4 and the retainer ring 2 is compressed in the process of screwing the bolts, the larger the pretightening force of the connecting bolts is, the tighter the elastic sealing ring 3 is pressed, the longer the replaced pipeline is stretched, and the better the tightness is tensioned by matching with the sealing gaskets at the two ends of the original pipeline, meanwhile, because the movable flange 4, the retainer ring 2 and the elastic sealing ring 3 are in a stressed compression state, the tightness of the pipeline is ensured, in addition, different sealing ring materials are selected, the pipeline can be suitable for different conveying media, the invention is characterized in that one end or two ends of the pipe body 1 are respectively provided with an adaptive adjusting flange component, the adaptive adjusting flange component is composed of a retainer ring 2, an elastic sealing ring 3 and a movable flange plate 4, the retainer ring 2 is arranged at the end part of the pipe body 1 and is connected with the outer wall of the pipe body 1, the side surface of the retainer ring 2 far away from the end part of the pipe body 1 is sequentially provided with the elastic sealing ring 3 and the movable flange plate 4, the inner wall of the movable flange plate 4 is provided with a clamping groove 5 for accommodating the retainer ring 2 and the elastic sealing ring 3, the inner side of the clamping groove 5 on the movable flange plate 4 and the side close to the accommodating retainer ring 2 are arranged in an open shape, the movable flange plate 4 is sleeved at the outer sides of the retainer ring 2, the elastic sealing ring 3 and the pipe body 1 through the clamping groove 5, the outer side of the movable flange, the movable flange plate 4 extrudes the elastic sealing ring 3 to realize the outward movement of the movable flange plate 4 and further realize the tight connection of the adjacent pipe bodies 1 through the locking of the connecting bolts, one end of each pipe body 1 is provided with a self-adaptive adjusting flange component, the other end of each pipe body 1 is provided with a fixed flange plate 7, the inner end of each fixed flange plate 7 is connected with the outer wall of the end part of each pipe body 1, the fixed flange plate 7 is provided with a connecting hole 6, the connection of the adjacent pipe bodies 1 is realized through the connecting hole 6 between the adjacent pipe bodies 1 and the connecting bolts in the connecting holes 6, the elastic sealing ring 3 is designed into a detachable elastic sealing ring 3, the adjustment of different compression amounts is realized through replacing the elastic sealing rings 3 with different thicknesses and elasticity, further, the sealing connection suitable for different gaps between the pipe bodies is realized, the elastic coefficient of the elastic sealing ring is, has the advantages of simple structure, adjustable length, good sealing performance and the like.

Claims (5)

1.一种自适应连接法兰，设有管体，其特征在于所述的管体的一端或两端分别设有自适应调节法兰组件，所述的自适应调节法兰组件由挡圈、弹性密封圈、活动法兰盘组成，所述的挡圈设在管体的端部并与管体的外壁相连接，所述挡圈远离管体端部的侧面依次设有弹性密封圈和活动法兰盘，所述的活动法兰盘的内壁上设有收纳挡圈和弹性密封圈的卡接槽，所述的活动法兰盘上的卡接槽的内侧和靠近收纳挡圈一侧设为开口状，活动法兰盘通过卡接槽套在挡圈、弹性密封圈和管体的外侧，活动法兰盘的外侧设有连接孔，相邻的管体通过连接螺栓穿过法兰盘上的连接孔实现相邻管体的连接，通过连接螺栓锁紧实现活动法兰盘挤压弹性密封圈实现活动法兰盘的外移进而实现相邻管体的紧密连接。1. A self-adaptive connecting flange is provided with a pipe body, and it is characterized in that one end or both ends of the pipe body are respectively provided with an adaptive adjustment flange assembly, and the self-adaptive adjustment flange assembly is formed by a retaining ring. , an elastic sealing ring and a movable flange, the retaining ring is arranged at the end of the pipe body and is connected with the outer wall of the pipe body, and the side of the retaining ring away from the end of the pipe body is sequentially provided with an elastic sealing ring and A movable flange, the inner wall of the movable flange is provided with a clamping groove for receiving the retaining ring and the elastic sealing ring, the inner side of the clamping groove on the movable flange and the side close to the retaining ring It is set as an opening. The movable flange is sleeved on the outer side of the retaining ring, the elastic sealing ring and the pipe body through the clamping groove. The outer side of the movable flange is provided with a connecting hole, and the adjacent pipe body passes through the flange through the connecting bolt. The connecting holes on the plate realize the connection of adjacent pipe bodies, and through the locking of the connecting bolts, the movable flange plate squeezes the elastic sealing ring to realize the outward movement of the movable flange plate, thereby realizing the tight connection of the adjacent pipe bodies. 2.根据权利要求1所述的一种自适应连接法兰，其特征在于所述的管体的一端设有自适应调节法兰组件，管体的另一端设有固定法兰盘，固定法兰盘的内端与管体端部的外壁相连接，固定法兰盘上设有连接孔，通过相邻管体之间的连接孔和连接孔内的连接螺栓实现相邻管体的连接。2. An adaptive connection flange according to claim 1, characterized in that one end of the pipe body is provided with an adaptive adjustment flange assembly, and the other end of the pipe body is provided with a fixed flange. The inner end of the flange is connected with the outer wall of the end of the pipe body, and the fixing flange is provided with connecting holes. 3.根据权利要求1所述的一种自适应连接法兰，其特征在于所述的弹性密封圈设为可拆卸的弹性密封圈，通过更换不同厚度和弹性的弹性密封圈实现不同压缩量的调节，进而实现适应管体之间不同间隙的密封连接。3. An adaptive connection flange according to claim 1, characterized in that the elastic sealing ring is set as a detachable elastic sealing ring, and the elastic sealing ring with different thickness and elasticity is replaced to realize the Adjustment, so as to realize the sealing connection adapting to the different gaps between the pipe bodies. 4.根据权利要求1所述的一种自适应连接法兰，其特征在于所述的弹性密封圈的弹性系数＞80%，弹性密封圈的厚度为10-20mm。4. An adaptive connection flange according to claim 1, characterized in that the elastic coefficient of the elastic sealing ring is greater than 80%, and the thickness of the elastic sealing ring is 10-20 mm. 5.一种自适应法兰的连接方法，其特征在于连接方法步骤如下：5. A connection method of an adaptive flange, characterized in that the connection method steps are as follows: （1）：选择自适应法兰：根据更换管体的长度选择合适的自适应法兰，所述的自适应法兰选择为管体的一端设有自适应调节法兰组件或两端都设有自适应调节法兰组件；(1): Select the self-adaptive flange: choose the appropriate self-adaptive flange according to the length of the replaced pipe body. There is an adaptive adjustment flange assembly; （2）：连接：自适应调节法兰组件中的管体的两端分别对接在相应的更换部位，将活动法兰盘和侧面或者固定法兰盘侧面安装密封垫，再通过连接螺栓穿过连接孔后，实现自适应法兰的初步定位，然后再将连接螺栓逐步锁紧，由于在连接螺栓拧紧的过程中，活动法兰盘与挡圈之间的弹性密封圈被压缩，连接螺栓预紧力越大，则弹性密封圈被压得越紧，更换的管道伸缩的越长，同时配合原管道两端的密封垫，可以达到越拉紧密封性越好，同时由于活动法兰盘、挡圈与弹性密封圈之间处于受力压缩状态。(2): Connection: The two ends of the pipe body in the self-adaptive adjustment flange assembly are docked at the corresponding replacement parts, and the movable flange and the side or the side of the fixed flange are installed with gaskets, and then pass through the connecting bolts. After connecting the holes, the initial positioning of the adaptive flange is realized, and then the connecting bolts are gradually tightened. Since the elastic sealing ring between the movable flange and the retaining ring is compressed during the tightening process of the connecting bolts, the connecting bolts are pre-installed. The greater the tightening force, the tighter the elastic sealing ring is pressed, and the longer the replacement pipe expands and contracts. At the same time, with the gaskets at both ends of the original pipe, the tighter the tighter the better the sealing performance. The ring and the elastic sealing ring are in a state of force and compression.
CN202010174724.3A 2020-03-13 2020-03-13 Self-adaptive connecting flange and connecting method Pending CN111219548A (en)

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Application Number Priority Date Filing Date Title
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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101153680A (en) * 2007-09-15 2008-04-02 陈荣辉 Connecting structure of conveying pipe
CN203421375U (en) * 2013-08-22 2014-02-05 郑文俊 Moving and static switchable large-swing-range pipeline sealing connector
CN204729810U (en) * 2015-06-16 2015-10-28 泸州北方化学工业有限公司 movable sealing connector
CN105276312A (en) * 2014-06-16 2016-01-27 信越化学工业株式会社 Flange fixing structure
CN205781557U (en) * 2016-06-27 2016-12-07 同方江新造船有限公司 A kind of bite type flange end pipe joint
CN210014116U (en) * 2019-03-22 2020-02-04 南京惠宇塑料新材料有限公司 Novel polytetrafluoroethylene sealing element
CN211901956U (en) * 2020-03-13 2020-11-10 威海市海王科技有限公司 Self-adaptive connecting flange

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101153680A (en) * 2007-09-15 2008-04-02 陈荣辉 Connecting structure of conveying pipe
CN203421375U (en) * 2013-08-22 2014-02-05 郑文俊 Moving and static switchable large-swing-range pipeline sealing connector
CN105276312A (en) * 2014-06-16 2016-01-27 信越化学工业株式会社 Flange fixing structure
CN204729810U (en) * 2015-06-16 2015-10-28 泸州北方化学工业有限公司 movable sealing connector
CN205781557U (en) * 2016-06-27 2016-12-07 同方江新造船有限公司 A kind of bite type flange end pipe joint
CN210014116U (en) * 2019-03-22 2020-02-04 南京惠宇塑料新材料有限公司 Novel polytetrafluoroethylene sealing element
CN211901956U (en) * 2020-03-13 2020-11-10 威海市海王科技有限公司 Self-adaptive connecting flange

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