CN203927153U - Thermally expansive seal for pipe joints circle - Google Patents
Thermally expansive seal for pipe joints circle Download PDFInfo
- Publication number
- CN203927153U CN203927153U CN201420238767.3U CN201420238767U CN203927153U CN 203927153 U CN203927153 U CN 203927153U CN 201420238767 U CN201420238767 U CN 201420238767U CN 203927153 U CN203927153 U CN 203927153U
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- China
- Prior art keywords
- tubular body
- pipeline
- tube wall
- wall
- reinforced layer
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- Expired - Fee Related
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Abstract
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, and the longitudinal section of tubular body wall is crescent shape, and tubular body is arranged in the position of sealing gasket both sides along circumferentially filling the reinforced layer of promising heat expanding material.During use, 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 makes to occur vacuum between its tube wall and inner-walls of duct, and realization fits tightly, while thering is higher pressure in pipeline, the tube wall of tubular body is under the effect of pressure, and its tube wall 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.
Description
Technical field
The utility model 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.
Model utility content
The purpose of this utility model is to provide a kind of thermally expansive seal for pipe joints circle, and 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 utility model 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 the seal ring that the utility model provides, 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.
The utility model good sealing effect, 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
Fig. 1 the utility model one embodiment's structural drawing.
Fig. 2 use view of the present utility model.
Embodiment
Below in conjunction with embodiment and accompanying drawing, further illustrate the utility model.
Referring to Fig. 1
It is one section of tubular body 1 that the utility model provides its main body of thermally expansive seal for pipe joints circle, 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 the seal ring that the utility model provides, 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 |
|---|---|---|---|
| CN201420238767.3U CN203927153U (en) | 2014-05-09 | 2014-05-09 | Thermally expansive seal for pipe joints circle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420238767.3U CN203927153U (en) | 2014-05-09 | 2014-05-09 | Thermally expansive seal for pipe joints circle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203927153U true CN203927153U (en) | 2014-11-05 |
Family
ID=51822964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420238767.3U Expired - Fee Related CN203927153U (en) | 2014-05-09 | 2014-05-09 | Thermally expansive seal for pipe joints circle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203927153U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939689A (en) * | 2014-05-09 | 2014-07-23 | 王鹏 | Thermal expansion type pipeline sealing ring |
| CN115143326A (en) * | 2022-08-08 | 2022-10-04 | 泰能天然气有限公司 | Natural gas pipeline sealing device |
-
2014
- 2014-05-09 CN CN201420238767.3U patent/CN203927153U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939689A (en) * | 2014-05-09 | 2014-07-23 | 王鹏 | Thermal expansion type pipeline sealing ring |
| CN103939689B (en) * | 2014-05-09 | 2017-02-22 | 王鹏 | Thermal expansion type pipeline sealing ring |
| CN115143326A (en) * | 2022-08-08 | 2022-10-04 | 泰能天然气有限公司 | Natural gas pipeline sealing device |
| CN115143326B (en) * | 2022-08-08 | 2023-07-21 | 泰能天然气有限公司 | Natural gas pipeline sealing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20141105 Termination date: 20160509 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |