CN103939689B - Thermal expansion type pipeline sealing ring - Google Patents
Thermal expansion type pipeline sealing ring Download PDFInfo
- Publication number
- CN103939689B CN103939689B CN201410196680.9A CN201410196680A CN103939689B CN 103939689 B CN103939689 B CN 103939689B CN 201410196680 A CN201410196680 A CN 201410196680A CN 103939689 B CN103939689 B CN 103939689B
- Authority
- CN
- China
- Prior art keywords
- tubular body
- pipe
- wall
- pipe wall
- sealing ring
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
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
- 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
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/46—Sealings with packing ring expanded or pressed into place by fluid pressure, e.g. inflatable packings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Architecture (AREA)
- Fluid Mechanics (AREA)
- Gasket Seals (AREA)
Abstract
The invention provides a thermal expansion type pipeline sealing ring. A sealing ring body is a tubular body. An annular protruding sealing gasket is arranged in the middle outside the tubular body. The longitudinal section of the pipe wall of the tubular body is of a crescent shape. The portions, located at the two sides of the sealing gasket, of the tubular body are filled with reinforcing layers in the circumferential direction, wherein the reinforcing layers are made of thermal expansion materials. When the thermal expansion type pipeline sealing ring is used, due to the fact that the longitudinal section of the pipe wall of the tubular body is of the crescent shape, after the tubular body is arranged in a pipe, the pipe wall, similar to a sucker, of the tubular body is attached to the inner wall of the pipe, vacuum is generated between the pipe wall of the tubular body and the inner wall of the pipe, and tight attachment is achieved; when the pressure inside the pipe is high, the pipe wall of the tubular body is more tightly attached to the pipe wall of the pipe under the action of pressure, so that the sealing effect is further improved; when the temperature inside the pipe is high, the reinforcing layers in the tubular body expand when heated, so that the pipe wall of the tubular body is more tightly attached to the pipe wall of the pipe. In addition, the shape of the pipe wall of the tubular body has little influence on the aspect of pipeline transmission capacity.
Description
Technical field
The present invention relates to a kind of sealing ring, specifically a kind of seal for pipe joints circle.
Background technology
A kind of structure of existing seal for pipe joints circle is that sealing ring main body is one section of columned body, outside tubular body
Middle part there is prominent sealing gasket annular in shape.The shortcoming that this sealing ring exists in use is：Body is interior with pipeline
The defective tightness combining between wall, because pipeline junction stress is relatively concentrated, the stress of concentration is in sealing ring and inner-walls of duct
Cooperation at, sealing effectiveness can be reduced, be particularly in the adverse circumstances of high temperature, high pressure sealing ring and be easier to deform, seriously
When can lead to seal failure；For ensureing the reliability of sealing, body requires there is certain wall thickness, while wall thickness guarantees, can subtract
Small pipeline cross-sectional area, increases overpressure, reduces pipeline transmission capacity simultaneously.
Content of the invention
It is an object of the invention to provide a kind of thermally expansive seal for pipe joints circle, this sealing ring can increase under high temperature, high pressure
Strong sealing effectiveness, and it is little to occupy the passage section of pipeline.
For achieving the above object, the present invention adopts below scheme：Thermally expansive seal for pipe joints circle, sealing ring main body is one section
Tubular body, the middle part outside tubular body there is prominent sealing gasket annular in shape it is characterised in that：The longitudinal section of tubular body wall
In crescent, tubular body is located at the enhancement layer circumferentially filling promising heat expanding material in the position of sealing gasket both sides.
From such scheme, during the sealing ring providing using the present invention, tubular body is located at the position of sealing gasket both sides
It is respectively protruding into two connected pipelines, makes cushion in the middle of the ring flange of two pipelines, couple two ring flanges, you can complete
Install.Because the longitudinal section of tubular body wall is in crescent, after tubular body is loaded in pipeline, its tube wall can paste as sucker
It is combined on the inwall of pipeline, and makes, between its tube wall and inner-walls of duct, vacuum occurs, realize fitting tightly, when having relatively in pipeline
During high pressure, under the effect of the pressure, the tube wall of tubular body can more closely be fitted on the tube wall of pipeline so that sealing effect
Fruit is further enhanced；When having higher temperature in pipeline, the enhancement layer heat in tubulose body expands, and also can make tubulose
Body tube wall is more closely fitted on the tube wall of pipeline.In addition, the shadow to pipeline transmission capacity aspect for the shape of tubular body wall
Sound is less.
Good sealing effect of the present invention, it can improve sealing effectiveness using the pressure within pipeline and temperature, and it is to pipeline
The impact of conveying capacity aspect is little, and can delay the seal failure leading to because sealing ring is aging.
Brief description
The structure chart of Fig. 1 one embodiment of the invention.
The use state schematic diagram of Fig. 2 present invention.
Specific embodiment
With reference to embodiments and accompanying drawing further illustrates the present invention.
Referring to Fig. 1
It is one section of tubular body 1 that the present invention provides thermally expansive its main body of seal for pipe joints circle, and the middle part in tubular body 1 outside has
Prominent sealing gasket 4 annular in shape, the longitudinal section of tubular body 1 tube wall is in crescent, and tubular body 1 is located at the portion of sealing gasket 4 both sides
The enhancement layer 2 of promising heat expanding material is circumferentially filled in position.The material of enhancement layer 2 can be swollen for the heat such as nylon, polyvinyl chloride
The higher material of swollen coefficient.
In the present embodiment, in enhancement layer 2, landfill has wire netting 3, and wire netting 3 is consistent with the trend of enhancement layer 2.Wire netting
3 effect is, when the fluid of high temperature in the pipeline that this sealing ring is sealed is not full of pipeline, is the reinforcement of thermal expansion material
Layer 2 cannot thermally equivalent, then enhancement layer 2 can be made more sufficiently to be heated and be able to by heat transfer to enhancement layer 2 by wire netting 3
Expand.The material of wire netting 3 can be the preferable material of heat conduction, such as other metals such as copper or aluminium.
Referring to Fig. 2
During the sealing ring being provided using the present invention, the position that tubular body 1 is located at sealing gasket 4 both sides is respectively protruding into being connected
In two pipelines 5 connecing, so that packing ring 4 is padded in the middle of the ring flange of two pipelines 5, couple two ring flanges, you can complete to install.
In addition, for the rougher pipeline of inwall, when installing this sealing ring, can the periphery at tubular body 1 both ends apply
It is covered with bonding agent, to ensure sealing when installing original state between tubular body appearance and inner-walls of duct.
Claims (2)
1. thermally expansive seal for pipe joints circle, sealing ring main body is one section of tubular body, and the middle part outside tubular body has and prominent is in
The sealing gasket of ring-type it is characterised in that：The longitudinal section of tubular body wall is in crescent, and tubular body is located at the position of sealing gasket both sides
In circumferentially fill the enhancement layer of promising heat expanding material.
2. thermally expansive seal for pipe joints circle according to claim 1 it is characterised in that：In enhancement layer, landfill has ring-type
Wire netting, wire netting is consistent with the trend of enhancement layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410196680.9A CN103939689B (en) | 2014-05-09 | 2014-05-09 | Thermal expansion type pipeline sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410196680.9A CN103939689B (en) | 2014-05-09 | 2014-05-09 | Thermal expansion type pipeline sealing ring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103939689A CN103939689A (en) | 2014-07-23 |
| CN103939689B true CN103939689B (en) | 2017-02-22 |
Family
ID=51187483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410196680.9A Expired - Fee Related CN103939689B (en) | 2014-05-09 | 2014-05-09 | Thermal expansion type pipeline sealing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103939689B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108019573B (en) * | 2017-12-30 | 2019-08-09 | 海门市设备安装工程有限公司 | Metal tube connection structure and attaching method thereof |
| CN110030437B (en) * | 2019-04-19 | 2021-03-02 | 宁波冶金勘察设计研究股份有限公司 | Buried pipeline |
| CN112032303A (en) * | 2020-08-11 | 2020-12-04 | 国电青山热电有限公司 | Coal pulverizer lower frame body seal structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2243265A (en) * | 1939-10-21 | 1941-05-27 | Valley Concrete Pipe & Product | Pipe coupling |
| DE1245656B (en) * | 1962-05-03 | 1967-07-27 | August D Lineweber | Pipe connection |
| CN2121576U (en) * | 1992-05-12 | 1992-11-11 | 张洪庆 | High-strength graphitic sandwiched sealing gasket coated with teflon |
| CN103270358A (en) * | 2010-10-21 | 2013-08-28 | 阿蒙德·萨尔基西安 | Gasket for piping |
| CN203927153U (en) * | 2014-05-09 | 2014-11-05 | 王鹏 | Thermally expansive seal for pipe joints circle |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8505983B2 (en) * | 2007-10-29 | 2013-08-13 | Ludwig Hiss | Expansion seal, especially for gases |
| CN101910690A (en) * | 2008-06-21 | 2010-12-08 | 菲特尔莫古密封系统有限公司 | Be used for seal element at the internal-combustion engine flange surfaces |
| CN202327096U (en) * | 2011-12-08 | 2012-07-11 | 株洲博尔密封材料有限公司 | Ultra-high-temperature and ultra-high-pressure sealing washer formed by combining metal and expanded graphite |
| CN202327097U (en) * | 2011-12-08 | 2012-07-11 | 株洲博尔密封材料有限公司 | Metal and expandable graphite loop composite sealing washer with metal washers |
-
2014
- 2014-05-09 CN CN201410196680.9A patent/CN103939689B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2243265A (en) * | 1939-10-21 | 1941-05-27 | Valley Concrete Pipe & Product | Pipe coupling |
| DE1245656B (en) * | 1962-05-03 | 1967-07-27 | August D Lineweber | Pipe connection |
| CN2121576U (en) * | 1992-05-12 | 1992-11-11 | 张洪庆 | High-strength graphitic sandwiched sealing gasket coated with teflon |
| CN103270358A (en) * | 2010-10-21 | 2013-08-28 | 阿蒙德·萨尔基西安 | Gasket for piping |
| CN203927153U (en) * | 2014-05-09 | 2014-11-05 | 王鹏 | Thermally expansive seal for pipe joints circle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103939689A (en) | 2014-07-23 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170222 Termination date: 20210509 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |