CN103939689A - Thermal expansion type pipeline sealing ring - Google Patents
Thermal expansion type pipeline sealing ring Download PDFInfo
- Publication number
- CN103939689A CN103939689A CN201410196680.9A CN201410196680A CN103939689A CN 103939689 A CN103939689 A CN 103939689A CN 201410196680 A CN201410196680 A CN 201410196680A CN 103939689 A CN103939689 A CN 103939689A
- Authority
- CN
- China
- Prior art keywords
- tubular body
- pipe
- wall
- pipe wall
- thermal expansion
- 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.)
- Granted
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
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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
- 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
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- 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 seal ring, specifically a kind of seal for pipe joints circle.
Background technique
The structure of existing a kind of seal for pipe joints circle is, seal ring main body is one section of columned body, and the middle part in tubular body outside has outstanding sealing gasket in the form of a ring.The shortcoming that this seal ring in use exists is: the defective tightness of combination between the inwall of body and pipeline, because pipeline junction stress is more concentrated, concentrated effect of stress is in the cooperation place of seal ring and inner-walls of duct, can reduce sealing effect, especially in the rugged environment in high temperature, high pressure, seal ring is more easily out of shape, and when serious, can cause seal failure; For guaranteeing the reliability of sealing, body requires there is certain wall thickness, when wall thickness is guaranteed, can reduce cross-section of pipeline long-pending, increases overpressure, reduces pipeline transmission capacity simultaneously.
Summary of the invention
The object of the present invention is to provide a kind of thermally expansive seal for pipe joints circle, sealing circle can strengthen sealing effect under high temperature, high pressure, and it is little to occupy the passage section of pipeline.
For achieving the above object, the present invention adopts following scheme: thermally expansive seal for pipe joints circle, seal ring main body is one section of tubular body, the middle part in tubular body outside has outstanding sealing gasket in the form of a ring, it is characterized in that: the longitudinal section of tubular body wall is crescent shape, tubular body is arranged in the position of sealing gasket both sides along circumferentially filling the reinforced layer of promising heat expanding material.
From such scheme, while using seal ring provided by the invention, the position that tubular body is positioned to sealing gasket both sides stretches to respectively two pipelines that are connected, and makes packing ring pad in the middle of the flange plate of two pipelines, connects two flange plate, can complete installation.Because the longitudinal section of tubular body wall is crescent shape, after tubular body is loaded in pipeline, its tube wall can be fitted on the inwall of pipeline as sucker, and make to occur vacuum between its tube wall and inner-walls of duct, realization fits tightly, while having higher pressure in pipeline, under the effect of pressure, the tube wall of tubular body can be fitted on the tube wall of pipeline more closely, and sealing effect is further enhanced; While having higher temperature in pipeline, the reinforced layer heat in tubular body expands, and also can make tubular body wall be fitted in more closely on the tube wall of pipeline.In addition, the shape of tubular body wall is less on the impact of pipeline transmission capacity aspect.
Good sealing effect of the present invention, it can utilize the pressure of pipe interior and temperature to improve sealing effect, and it is little on the impact of pipeline transmission capacity aspect, and can delay the seal failure that causes because seal ring is aging.
Accompanying drawing explanation
The structural drawing of Fig. 1 one embodiment of the invention.
Fig. 2 use view of the present invention.
Embodiment
Below in conjunction with embodiment and accompanying drawing, further illustrate the present invention.
Referring to Fig. 1
The invention provides its main body of thermally expansive seal for pipe joints circle is one section of tubular body 1, the middle part in tubular body 1 outside has outstanding sealing gasket in the form of a ring 4, the longitudinal section of tubular body 1 tube wall is crescent shape, and tubular body 1 is arranged in the position of sealing gasket 4 both sides along circumferentially filling the reinforced layer 2 of promising heat expanding material.The material of reinforced layer 2 can be the higher materials of thermal expansion coefficient such as nylon, PVC＝polyvinyl chloride.
In the present embodiment, in reinforced layer 2, landfill has wire netting 3, and wire netting 3 is consistent with the trend of reinforced layer 2.The effect of wire netting 3 is, when in the pipeline that this seal ring seals, the fluid of high temperature is not full of pipeline, cannot thermally equivalent for the reinforced layer 2 of thermal expansion material, by 3 of wire nettings, heat can be conducted to reinforced layer 2, reinforced layer 2 is expanded compared with being heated fully.The material of wire netting 3 can be the good material of heat conduction, as other metals such as copper or aluminium.
Referring to Fig. 2
While using seal ring provided by the invention, the position that tubular body 1 is positioned to sealing gasket 4 both sides stretches to respectively two pipelines 5 that are connected, and makes packing ring 4 pads in the middle of the flange plate of two pipelines 5, connects two flange plate, can complete installation.
In addition, for the more coarse pipeline of inwall, when this seal ring is installed, can be coated with and be covered with binder at the periphery at tubular body 1 two end part, the sealing when guaranteeing, between tubular body appearance and inner-walls of duct, original state is installed.
Claims (2)
1. thermally expansive seal for pipe joints circle, seal ring main body is one section of tubular body, the middle part in tubular body outside has outstanding sealing gasket in the form of a ring, it is characterized in that: the longitudinal section of tubular body wall is crescent shape, tubular body is arranged in the position of sealing gasket both sides along circumferentially filling the reinforced layer of promising heat expanding material.
2. thermally expansive seal for pipe joints circle according to claim 1, is characterized in that: in reinforced layer, landfill has the wire netting of ring-type, and wire netting is consistent with the trend of reinforced 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 true CN103939689A (en) | 2014-07-23 |
| CN103939689B 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) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108019573A (en) * | 2017-12-30 | 2018-05-11 | 海门市设备安装工程有限公司 | Metal tube connection structure and attaching method thereof |
| CN110030437A (en) * | 2019-04-19 | 2019-07-19 | 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 (9)
| 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 |
| CN101910690A (en) * | 2008-06-21 | 2010-12-08 | 菲特尔莫古密封***有限公司 | Be used for seal element at the internal-combustion engine flange surfaces |
| US20110253667A1 (en) * | 2007-10-29 | 2011-10-20 | Ludwig Hiss | Expansion Seal, Especially for Gases |
| 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 |
| 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 |
| 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 |
-
2014
- 2014-05-09 CN CN201410196680.9A patent/CN103939689B/en not_active Expired - Fee Related
Patent Citations (9)
| 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 |
| US20110253667A1 (en) * | 2007-10-29 | 2011-10-20 | Ludwig Hiss | Expansion Seal, Especially for Gases |
| CN101910690A (en) * | 2008-06-21 | 2010-12-08 | 菲特尔莫古密封***有限公司 | Be used for seal element at the internal-combustion engine flange surfaces |
| CN103270358A (en) * | 2010-10-21 | 2013-08-28 | 阿蒙德·萨尔基西安 | Gasket for piping |
| 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 |
| 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 |
| CN203927153U (en) * | 2014-05-09 | 2014-11-05 | 王鹏 | Thermally expansive seal for pipe joints circle |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108019573A (en) * | 2017-12-30 | 2018-05-11 | 海门市设备安装工程有限公司 | Metal tube connection structure and attaching method thereof |
| CN110030437A (en) * | 2019-04-19 | 2019-07-19 | 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103939689B (en) | 2017-02-22 |
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| 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 |
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| CF01 | Termination of patent right due to non-payment of annual fee |