CN106704749A - Oil and gas pipeline pressure tee joint - Google Patents
Oil and gas pipeline pressure tee joint Download PDFInfo
- Publication number
- CN106704749A CN106704749A CN201510788509.1A CN201510788509A CN106704749A CN 106704749 A CN106704749 A CN 106704749A CN 201510788509 A CN201510788509 A CN 201510788509A CN 106704749 A CN106704749 A CN 106704749A
- Authority
- CN
- China
- Prior art keywords
- threeway
- flange
- main
- oil
- gas pipeline
- 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
- 238000007789 sealing Methods 0.000 claims abstract description 23
- 238000003466 welding Methods 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims description 10
- 238000010276 construction Methods 0.000 abstract description 2
- 238000005536 corrosion prevention Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 241000233855 Orchidaceae Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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
- F16L41/00—Branching pipes; Joining pipes to walls
- F16L41/02—Branch units, e.g. made in one piece, welded, riveted
- F16L41/021—T- or cross-pieces
Abstract
The invention relates to an oil and gas pipeline pressure tee joint. The oil and gas pipeline pressure tee joint comprises a three-way protection plate, a three-way connection pipe, a three-way main body, a flange and a plug handle; a seal is fixedly mounted in an upper port of the three-way main body; a key slot is axially formed in the outer edge of the three-way main body; a stop key is axially pinned in the key slot; a ring groove is formed in the inner edge of the upper plane of the flange; a sub port sealing pad is coaxially mounted in the ring groove; and a sealing ring is mounted between the sealing pad and the three-way main body. The flange of the blockage tee joint is in threaded engagement connection with the three-way main body; the stop key is used for radial fixation; the sub port sealing pad is used for sealing; and after the blockage construction is finished, a buried tee joint remained on a pipe can serve as a pipe fitting remained on the pipe without covering a blind plate and keeping a bolt after being sealed through a welding seal, so that the requirements of permanent burying of long-distance pipelines are more accordant, the hidden troubles of leakage are reduced, the anti-theft effect is excellent, and the potential safety hazards are effectively prevented.
Description
Technical field
The invention belongs to oil gas transmission field, it is related to a kind of technique threeway with pressure of oil-gas pipeline.
Background technology
Closure threeway is a kind of indispensable technique threeway for implementing press and open holes closure operation on oil-gas pipeline.Pass
Include threeway main body, closure backplate, plug handle, blind plate, bolt, point valve snap ring in a set of closure threeway of system,
Threeway main body is radially packed on closure backplate, and coaxial positioning package has plug handle in threeway main body, in threeway master
Body upper end cover fills blind plate, and the blind plate is packaged fastening by bolt.As publication (title：One kind envelope
Stifled threeway, publication number CN201764181U) it is described, the closure threeway is including blind flange, with operation path
Fluting flange, be arranged in the operation path threeway plug handle, threeway backplate and be arranged on the fluting method
Snap ring mechanism on orchid；It is described fluting flange one end be fixedly connected with the threeway backplate, the other end with it is described
Blind flange is detachably connected；The threeway plug handle outer surface is provided with plug handle seal groove and snap ring locking groove, described
Plug handle sealing ring is provided with plug handle seal groove.
The closure threeway of technological document disclosed above leaves blind plate and external spiral shell after installing in outside
Bolt, impacts to follow-up corrosion prevention operation.And, this frame mode turns on bolt and opens blind to robber
Plate and steal oil gas there is provided condition, therefore anti-theft effect is poor,；Meanwhile, stolen result also produces pipeline
Leakage, potential safety hazard is larger, does not meet the buried permanent requirement of long distance pipeline.
By retrieval, not yet find and the present patent application identical patent document.
The content of the invention
It is an object of the invention to overcome the shortcomings of original technology, there is provided a kind of design science is ingenious, anti-theft effect
Good, oil-gas pipeline with low cost technique threeway with pressure.
The object of the present invention is achieved like this：
A kind of oil-gas pipeline technique threeway with pressure, including threeway backplate, t-joint, threeway main body, flange and
Plug handle, threeway backplate is fixedly mounted with threeway main body coaxial welding radial through welding the t-joint that is fixedly mounted with, threeway
Connected with t-joint and threeway backplate in main body, coaxial radial positioning is packaged with plug handle in threeway main body,
Pass through screw thread engagement system mounting flange outside threeway main body, it is characterised in that：The upper port of the threeway main body is consolidated
Equipped with end socket, a keyway is axially formed with threeway main body outer rim, axial pin is equipped with a locking key in the keyway,
The locking key radial positioning is fixedly mounted with flange；Plane inner edge is formed with an annular groove on flange, coaxially pacifies in the annular groove
Equipped with rim of the mouth sealing gasket, sealing ring is installed between the rim of the mouth sealing gasket and threeway main body.
And, the end socket uses hemisphere shape.
And, plane on the upper plane protrusion flange of the rim of the mouth sealing gasket.
And, the threeway inner major diameter is positioned to the plug handle of positioning package using packing.
Advantages and positive effects of the present invention are：
1st, the flange of this closure threeway is connected with the engagement of threeway main body screw, and is carried out using locking key radially solid
It is fixed, the sealing of rim of the mouth sealing gasket, after the completion of plugging construction, the buried threeway stayed on pipeline is sealed by welding end socket
Mouthful after can not lid blind plate, do not stay bolt, as the pipe fitting stayed on pipeline, more conform to long distance pipeline buried forever
The requirement of long property, reduces leakage hidden danger, and anti-theft effect is very good, effectively prevent potential safety hazard..
2nd, after this closure threeway installing stopper handle with pressure can by demounting flange, in the welding end socket suitable for reading of threeway main body,
Can not study in France blue and blind plate after welding, easily facilitate the corrosion prevention operation of postorder.
3rd, the flange of this closure threeway is reusable after removal, and can cut blind plate, bolt, flange
Finished product expense, greatly reduces cost, and design science rationally, is skillfully constructed.
Brief description of the drawings
Fig. 1 is contour structures schematic diagram of the invention；
Fig. 2 is the A-A of Fig. 1 to cross-sectional view.
Specific embodiment
Describe embodiments of the invention in detail below in conjunction with the accompanying drawings；It should be noted that the present embodiment is to chat
The property stated, be not limited, it is impossible to limit protection scope of the present invention with this.
A kind of oil-gas pipeline technique threeway with pressure, including threeway backplate 6, t-joint 5, threeway main body 4,
Flange 3 and plug handle 9, threeway backplate is radial through weld the t-joint that is fixedly mounted with and threeway main body coaxial welding
It is fixedly mounted with, is connected with t-joint and threeway backplate in threeway main body, the coaxial radial positioning encapsulation in threeway main body
There is plug handle, screw thread engagement system mounting flange is passed through outside threeway main body.
Innovative point of the invention is：
1st, the upper port of threeway main body is welded with end socket 1 using welding manner, and the end socket is in the present embodiment accompanying drawing
In use hemisphere shape, it would however also be possible to employ other shapes.Threeway main body can be made using welding end socket mode
Closed with extraneous in threeway main body, it is to avoid leak and stolen.
2nd, a keyway is axially formed with threeway main body outer rim, axial pin is equipped with a locking key 10 in the keyway,
The locking key can radial positioning be fixedly mounted with flange；Plane inner edge is formed with an annular groove on flange, coaxial in the annular groove
Rim of the mouth sealing gasket 2 is installed, sealing ring 7 is installed between the sealing gasket and threeway main body；Rim of the mouth sealing gasket
Plane on upper plane protrusion flange, to realize the seam location fit with valve.
3rd, threeway inner major diameter is positioned to the plug handle of positioning package using packing 8.
Application method of the invention is：
After the completion of plugging holes operation, installing stopper handle with pressure is counterclockwise by flange after flange inner spout is blocked
Rotation, can lay down flange, and end socket is then welded at upper orifice, complete the sealing work of closure threeway.Only
Dynamic key is control flange positioning, and rim of the mouth sealing gasket is to play a part of flange rim of the mouth positioning, plays O-shaped close again
The sealing function that seal coordinates flange and threeway.
Claims (4)
1. a kind of oil-gas pipeline technique threeway with pressure, including threeway backplate, t-joint, threeway main body, method
Blue and plug handle, threeway backplate is fixedly mounted with threeway main body coaxial welding radial through welding the t-joint that is fixedly mounted with,
Connected with t-joint and threeway backplate in threeway main body, coaxial radial positioning is packaged with plug in threeway main body
Handle, passes through screw thread engagement system mounting flange outside threeway main body, it is characterised in that：The threeway main body it is upper
Port is fixed with end socket, and a keyway is axially formed with threeway main body outer rim, and axial pin is stopped equipped with one in the keyway
Dynamic key, the locking key radial positioning is fixedly mounted with flange；Plane inner edge is formed with an annular groove on flange, in the annular groove
Rim of the mouth sealing gasket is coaxially installed with, sealing ring is installed between the rim of the mouth sealing gasket and threeway main body.
2. oil-gas pipeline according to claim 1 technique threeway with pressure, it is characterised in that：The end socket
Use hemisphere shape.
3. oil-gas pipeline according to claim 1 technique threeway with pressure, it is characterised in that：The rim of the mouth
Plane on the upper plane protrusion flange of sealing gasket.
4. oil-gas pipeline according to claim 1 technique threeway with pressure, it is characterised in that：The threeway
Inner major diameter is positioned to the plug handle of positioning package using packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510788509.1A CN106704749A (en) | 2015-11-17 | 2015-11-17 | Oil and gas pipeline pressure tee joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510788509.1A CN106704749A (en) | 2015-11-17 | 2015-11-17 | Oil and gas pipeline pressure tee joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106704749A true CN106704749A (en) | 2017-05-24 |
Family
ID=58932067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510788509.1A Pending CN106704749A (en) | 2015-11-17 | 2015-11-17 | Oil and gas pipeline pressure tee joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106704749A (en) |
-
2015
- 2015-11-17 CN CN201510788509.1A patent/CN106704749A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170524 |