CN106402526A - Coupling for petroleum pipeline - Google Patents
Coupling for petroleum pipeline Download PDFInfo
- Publication number
- CN106402526A CN106402526A CN201611071992.2A CN201611071992A CN106402526A CN 106402526 A CN106402526 A CN 106402526A CN 201611071992 A CN201611071992 A CN 201611071992A CN 106402526 A CN106402526 A CN 106402526A
- Authority
- CN
- China
- Prior art keywords
- petroleum pipeline
- box cupling
- annular
- coupling
- protective cover
- 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.)
- Pending
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
- F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
- F16L15/04—Screw-threaded joints; Forms of screw-threads for such joints with additional sealings
-
- 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
- F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
- F16L15/006—Screw-threaded joints; Forms of screw-threads for such joints with straight threads
- F16L15/008—Screw-threaded joints; Forms of screw-threads for such joints with straight threads with sealing rings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Flanged Joints, Insulating Joints, And Other Joints (AREA)
Abstract
The invention discloses a coupling for a petroleum pipeline. The coupling comprises a coupling pipe body. An internal thread matched with an external thread of the petroleum pipeline is arranged on the inner surface of the coupling pipe body, protective cover rings are installed at the two ends of the coupling pipe body, and protective covers are provided with annular flanges; the end, connected with the coupling pipe body, of the petroleum pipeline is provided with three annular grooves, the annular flanges are connected with the annular grooves in a clamped manner, and elastic sealing rings are further arranged on the coupling pipe body; and the elastic sealing rings are located on the sides, close to the coupling pipe body, of the annular flanges, and the elastic sealing rings tightly make contact with the petroleum pipeline. The coupling for the petroleum pipeline comprises the protective cover rings, the protective cover rings achieve a sealing effect with the petroleum pipeline, the annular flanges are connected with the annular grooves in the clamped manner, and when the annular flanges disengage from one annular groove, the annular flanges enter another annular groove; and thus, the service life can be prolonged, and the sealing effect is enhanced through the arrangement of the sealing rings.
Description
Technical field
The present invention relates to petroleum pipeline technical field, more particularly, to a kind of petroleum pipeline box cupling.
Background technology
Pipeline is that carried of crude oil is most economical, a kind of rational means of transportation.Pipeline crude oil, the company between oil pipe
The mode of connecing is typically with tubing coupling and is attached, and tubing coupling has tubulose box cupling body, and the two ends of box cupling body have
Connect female thread, during using tubing coupling connected pipes, be screwed into tubing coupling connection female thread having externally threaded oil pipe
Interior, oil continuative transport pipeline is formed with this, realizes the continuative transport of oil.Above-mentioned tubing coupling of the prior art and oil pipe
Between the sealing that connects be usually first to be wound around glass fiber or the rope made of hemp in the external screw thread of oil pipe, afterwards being tied with glass fiber or the rope made of hemp
Oil pipe is screwed into tubing coupling, above-mentioned seal form there is problems that：One is oil pipe and tubing coupling installation is relatively cumbersome,
Need to get out glass fiber or the rope made of hemp in advance, in addition the elastic or thickness of the rope made of hemp or glass fiber winding also can affect sealing effectiveness,
Wayward；Two is practice have shown that carrying out oil pipe and tubing coupling sealing, sealing effect in the form of glass fiber or the rope made of hemp are wound around
Really bad, crude oil Seepage easily occurs during use.
Content of the invention
In order to overcome the problem of existing technical deficiency, the present invention provides a kind of petroleum pipeline box cupling.
The technical scheme is that and be achieved in that：A kind of petroleum pipeline box cupling, including box cupling body, described box cupling
Inner surface of tube body is provided with and has the female thread that external screw thread petroleum pipeline matches, and is respectively mounted at described box cupling body two ends
There is protective cover ring, described protective cover is equipped with an annular flange flange, one end that described petroleum pipeline is connected with box cupling body sets
There are three road annular grooves, described annular flange flange and annular groove clamping, described box cupling body is additionally provided with elastic seal ring, described
Elastic seal ring is located at described annular flange flange near the side of box cupling body, and described elastic seal ring is tight with described petroleum pipeline
Contact.
Preferably, the 1/3 of described box cupling body width and described box cupling pipe welding.
Preferably, the length of described annular flange flange is equal to the vertical dimension of annular groove with protective cover ring inwall.
Present invention has the advantages that：The box cupling that petroleum pipeline in the present invention adopts includes protective cover ring, and protective cover ring rises
To the effect with petroleum pipeline sealing, wherein, annular flange flange and annular groove clamping, when annular flange flange departs from an annular groove
When, another annular groove will be entered, so can increase the service life, the in addition setting of sealing ring also enhances sealing effect
Really.
Brief description
Fig. 1 is the structural representation of petroleum pipeline box cupling of the present invention；
Fig. 2 is the sectional view of protective cover ring in the present invention；
In figure：1 box cupling body, 2 protective cover rings, 3 annular flange flange, 4 elastic seal rings.
Specific embodiment
The present invention is described further in conjunction with the accompanying drawings and embodiments.
As shown in Figure 1, 2, a kind of petroleum pipeline box cupling, including box cupling body, described box cupling inner surface of tube body be provided with
There is the female thread that external screw thread petroleum pipeline matches, and be separately installed with protective cover ring at described box cupling body two ends, described
One annular flange flange is equipped with protective cover, one end that described petroleum pipeline is connected with box cupling body is provided with three road annular grooves,
Described annular flange flange and annular groove clamping, described box cupling body are additionally provided with elastic seal ring, described elastic seal ring is located at
Described annular flange flange is in close contact with described petroleum pipeline near the side of box cupling body, described elastic seal ring.
The 1/3 of heretofore described box cupling body width with described box cupling pipe welding it is ensured that the fastening type being connected, separately
Outward, the length of described annular flange flange is equal to the vertical dimension of annular groove with protective cover ring inwall, the end of such annular flange flange
Portion is connected to the bottommost of annular groove, enhances sealing effectiveness.
The box cupling that petroleum pipeline in the present invention adopts includes protective cover ring, and protective cover ring plays and petroleum pipeline sealing
Effect, wherein, annular flange flange and annular groove clamping, when annular flange flange departs from an annular groove, will be entered another
Annular groove, so can increase the service life, and the in addition setting of sealing ring also enhances sealing effectiveness.
In this description, the present invention is described with reference to its specific embodiment.But it is clear that still can make
Various modifications and alterations are without departing from the spirit and scope of the present invention.Therefore, description is considered as illustrative rather than limit
Property processed.
Claims (3)
1. a kind of petroleum pipeline box cupling, including box cupling body it is characterised in that described box cupling inner surface of tube body is provided with and has
The female thread that external screw thread petroleum pipeline matches, and it is separately installed with protective cover ring, described protection at described box cupling body two ends
One annular flange flange is equipped with cover, one end that described petroleum pipeline is connected with box cupling body is provided with three road annular grooves, described
Annular flange flange and annular groove clamping, described box cupling body is additionally provided with elastic seal ring, and described elastic seal ring is located at described
Annular flange flange is in close contact with described petroleum pipeline near the side of box cupling body, described elastic seal ring.
2. petroleum pipeline box cupling according to claim 1 is it is characterised in that 1/3 and institute of described box cupling body width
State box cupling pipe welding.
3. petroleum pipeline box cupling according to claim 1 is it is characterised in that the length of described annular flange flange and protective cover
The vertical dimension of ring inwall to annular groove is equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611071992.2A CN106402526A (en) | 2016-11-29 | 2016-11-29 | Coupling for petroleum pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611071992.2A CN106402526A (en) | 2016-11-29 | 2016-11-29 | Coupling for petroleum pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106402526A true CN106402526A (en) | 2017-02-15 |
Family
ID=58083589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611071992.2A Pending CN106402526A (en) | 2016-11-29 | 2016-11-29 | Coupling for petroleum pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106402526A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108442934A (en) * | 2018-03-28 | 2018-08-24 | 辽宁工程技术大学 | A kind of shield machine sealing structure for set of tunneling construction |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203892760U (en) * | 2014-04-17 | 2014-10-22 | 安徽江淮汽车股份有限公司 | Hose plate-crossing connection quick-plug connector |
| CN204372391U (en) * | 2015-01-06 | 2015-06-03 | 湖北三江航天红阳机电有限公司 | A kind of pressure test pipeline conversion adapter |
| CN205560017U (en) * | 2016-04-25 | 2016-09-07 | 江苏众成复合材料有限责任公司 | Mine water supply and sewage FRP pipe way |
| CN205606023U (en) * | 2016-04-21 | 2016-09-28 | 成都来宝石油设备有限公司 | Anti -drop formula coupling for petroleum pipeline |
| CN106065977A (en) * | 2016-08-06 | 2016-11-02 | 谢秋鸿 | A kind of sealing device of fluidic structures |
| CN206246866U (en) * | 2016-11-29 | 2017-06-13 | 无锡金顶石油管材配件制造有限公司 | A kind of petroleum pipeline box cupling |
-
2016
- 2016-11-29 CN CN201611071992.2A patent/CN106402526A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203892760U (en) * | 2014-04-17 | 2014-10-22 | 安徽江淮汽车股份有限公司 | Hose plate-crossing connection quick-plug connector |
| CN204372391U (en) * | 2015-01-06 | 2015-06-03 | 湖北三江航天红阳机电有限公司 | A kind of pressure test pipeline conversion adapter |
| CN205606023U (en) * | 2016-04-21 | 2016-09-28 | 成都来宝石油设备有限公司 | Anti -drop formula coupling for petroleum pipeline |
| CN205560017U (en) * | 2016-04-25 | 2016-09-07 | 江苏众成复合材料有限责任公司 | Mine water supply and sewage FRP pipe way |
| CN106065977A (en) * | 2016-08-06 | 2016-11-02 | 谢秋鸿 | A kind of sealing device of fluidic structures |
| CN206246866U (en) * | 2016-11-29 | 2017-06-13 | 无锡金顶石油管材配件制造有限公司 | A kind of petroleum pipeline box cupling |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108442934A (en) * | 2018-03-28 | 2018-08-24 | 辽宁工程技术大学 | A kind of shield machine sealing structure for set of tunneling construction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170215 |
|
| RJ01 | Rejection of invention patent application after publication |