CN107724987A - A kind of packing assemblies - Google Patents
A kind of packing assemblies Download PDFInfo
- Publication number
- CN107724987A CN107724987A CN201710978381.4A CN201710978381A CN107724987A CN 107724987 A CN107724987 A CN 107724987A CN 201710978381 A CN201710978381 A CN 201710978381A CN 107724987 A CN107724987 A CN 107724987A
- Authority
- CN
- China
- Prior art keywords
- seal
- packing
- sealing
- assemblies according
- packing assemblies
- 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
- 238000012856 packing Methods 0.000 title claims abstract description 33
- 230000000712 assembly Effects 0.000 title claims abstract description 15
- 238000000429 assembly Methods 0.000 title claims abstract description 15
- 238000007789 sealing Methods 0.000 claims abstract description 46
- 238000009434 installation Methods 0.000 claims abstract description 6
- 230000007704 transition Effects 0.000 claims abstract description 5
- 239000002184 metal Substances 0.000 claims abstract description 4
- 239000000565 sealant Substances 0.000 claims abstract description 4
- 210000002421 cell wall Anatomy 0.000 claims description 22
- 230000008859 change Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000008393 encapsulating agent Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Gasket Seals (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention provides a kind of packing assemblies, including packing component, and the packing component includes the seal of some bowl-type, and seal groove is in arc-shaped structure, and round-corner transition is used in seal groove and sealant surface joint；Each seal top is equipped with conical opening, bottom is equipped with cylindrical mouth as axis hole, forms boss in cylindrical mouth and conical opening joint, clamping pad is provided with the upper surface of the boss；First seal is equipped between every two seal.Clamping pad uses metal gasket, and its upper and lower surface is plane.Packing is combined by several seals in the invention, using primary seal of the second seal with U-shaped opening as sealing polished rod, reduce the difficulty of wellhead assembly installation, during assembling during polished rod, after polished rod is completed in assembling, clamping pad is pushed by platen etc. without being brought into close contact with the second sealing for polished rod, so that second seal is squeezed, reliable sealing is formed.
Description
Technical field
The invention belongs to oil field shaft mouth sealing device technical field, more particularly, to a kind of packing assemblies.
Background technology
Extensively using rubber packing as encapsulant in wellhead sealing material at the scene, in oil well production process, by
In polished rod in reasons such as reciprocating, oil-pump base sinking, oil pumper installation site inaccuracy, polished rod is caused to be produced with well head
Raw horizontal-shift and angle skew, cause short, well head oil leak of well head eccentric wear, packing service life etc..Along with recovery time
The influence of extension, rod-pumped well Produced Liquid temperature, the change of viscosity, oil well rig etc., makes well head sealing packing frequently grind
Damage, internal diameter becomes big after rubber packing is worn, and cannot play the phenomenon of sealing, leakage phenomena is on the rise, and often changes
Well head packing, nearly all disassembles well mouth sealing device, could change, strong influence production efficiency.
The content of the invention
In view of this, the invention is intended to overcome defect present in above-mentioned prior art, proposes a kind of packing_seal
Component.
To reach above-mentioned purpose, what the technical scheme of the invention was realized in：
A kind of packing assemblies, include the packing component of overall tapered structure, and packing component includes stacking what is set
The seal of several bowl-type, each seal top is equipped with conical opening, bottom is equipped with cylindrical mouth as axis hole,
Cylindrical mouth forms boss with conical opening joint, and clamping pad is provided with the upper surface of the boss；Between every two seal
It is equipped with first seal；Mounting groove is provided with the inwall at each seal cylindrical mouth, is fixed with the mounting groove
Second seal.
Further, the clamping pad uses metal gasket, and its upper and lower surface is plane.
Further, the cylindrical mouth inside each seal is in the same size.
Further, the first seal uses sealing ring, is sealed in the seal lower surface in top and lower section
The upper surface of body is equipped with the seal groove for installing the sealing ring.
Further, the seal groove is in arc-shaped structure, and round-corner transition is used in seal groove and sealant surface joint.
Further, the overall U-shaped structure of the second seal, it is equal in its outer rim of both sides cell wall towards its center side
O-ring is installed.
Further, the O-ring installation by adhering is in the second seal.
Further, the O-ring protrudes from seal plane 0.25-0.5mm.
Further, the second seal is in the cell wall of top compared with cell wall below, and it is towards center position
The big 3-5mm of length value.
Relative to prior art, the invention has the advantage that：
The invention is compact-sized, good sealing effect.Packing is combined by several seals, is provided between individual seal
For keeping the first seal of sealing, the second sealing for sealing up wellhead assembly polished rod is additionally provided with each seal
Part, integral sealing reliability is high, and second seal has compensation function, can make cell wall thereon upon wear by compressing
Move down, still realize splendid sealing, seal durability length, operating efficiency has been effectively ensured.
Brief description of the drawings
The accompanying drawing for forming the part of the invention is used for providing further understanding the invention, present invention wound
The schematic description and description made is used to explain the invention, does not form the improper restriction to the invention.
In accompanying drawing：
Fig. 1 is the structural representation of the invention；
Fig. 2 is the structural representation of seal in the invention；
Fig. 3 is the structural representation of second seal in the invention.
Description of reference numerals：
1- seals；2- conical openings；3- cylindrical mouths；4- boss；5- clamping pads；6- first seals；7- mounting grooves；8-
Second seal；9- seal grooves；10- fillets；11-O type circles；The upper cell walls of 12-；Cell wall under 13-.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the invention can
To be mutually combined.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " on ", " under ",
The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of description the invention and simplifies description, rather than instruction
Or imply that signified device or element must have specific orientation, with specific azimuth configuration and operation, therefore be not understood that
For the limitation to the invention.In addition, term " first ", " second " etc. are only used for describing purpose, and it is not intended that instruction
Or imply relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, " first ", " second " etc. are defined
Feature can express or implicitly include one or more this feature.In the description of the invention, unless separately
It is described, " multiple " are meant that two or more.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in the description of the invention
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, on being understood by concrete condition
State concrete meaning of the term in the invention.
Describe the invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
A kind of packing assemblies, as shown in Figures 1 to 3, include the packing component of overall tapered structure, packing component bag
The seal 1 for stacking the several bowl-type set is included, the top of each seal is equipped with conical opening 2, bottom is equipped with conduct
The cylindrical mouth 3 of axis hole, boss 4 is formed in cylindrical mouth 3 and the joint of conical opening 2, the cylindrical mouth of each seal is
A part for axis hole, together constitute the axis hole coordinated with wellhead polish rod；Clamping pad 5 is provided with the upper surface of the boss 4；Every two
First seal 6 is equipped between the seal；Mounting groove 7, institute are provided with the inwall at each seal cylindrical mouth
State and second seal 8 is fixed with mounting groove 7, generally, second seal preferably uses U-shaped rubber seal.
It should be noted that each seal is from top to bottom to stack gradually together, packing structure is together constituted,
The shape of each seal is identical, and the cylindrical mouth size inside seal is also identical.
In order to preferably be compacted packing by structures such as the platens of well mouth sealing device, in an optional implementation
In example, above-mentioned clamping pad 5 uses metal gasket, and its upper and lower surface is plane.The structural members such as the platen using well mouth sealing device
When being pressed on clamping pad, the active force of platen is evenly distributed on seal by clamping pad, makes seal in circumferencial direction
Each equal stand under load in position is uniform, greatly improves the sealing between each seal.
Meanwhile second seal uniform-compression, its U-shaped opening narrow, two cell wall outer rims can prop up wellhead assembly all the time
Polished rod, form reliable sealing.Using primary seal of the second seal with U-shaped opening as sealing polished rod, reduce
The difficulty of wellhead assembly installation, during assembling during polished rod, polished rod with the second sealing without be brought into close contact, after polished rod is completed in assembling,
Clamping pad is pushed by platen etc., so that second seal is squeezed, the outer rim of its upper and lower two cell wall can be formed with polished rod
Reliable sealing.
Wherein, the cylindrical mouth 3 inside each seal 1 is in the same size, the cylinder inside each seal
Shape mouth 3 is in the same size, fully coordinates with polished rod external diameter, forms reliable sealing.
Above-mentioned first seal 6 uses sealing ring, in the upper of the seal lower surface in top and lower section seal
Surface is equipped with the seal groove 9 for installing the sealing ring.Generally, seal groove 9 is in arc-shaped structure, seal groove 9 with it is close
Envelope body surface face joint uses the transition of fillet 10.
Due to the seal groove using circular arc, it can more ensure that sealing ring is pressed compared to traditional rectangular seal groove
Tightly between upper and lower two seals, design calculating and the control of decrement when can facilitate engineering design to sealing ring decrement
System.And seal groove and sealant surface joint use round-corner transition, sealing ring can be avoided by sharp corner angle to press against hurt bad.
It should be noted that seal groove depth need to be less than the 1/2 of seal diameter, to ensure sealing ring in upper and lower two sealings
Deformation after being squeezed between body, reliable sealing is formed, still, in order to ensure sealing ring can be fixed, the depth of seal groove
Generally higher than the 1/3 of seal diameter, that is, the 1/3-1/2 that seal groove depth is seal diameter.
The above-mentioned overall U-shaped structure of second seal 8, is mounted in its both sides cell wall towards the outer rim of its center side
O-ring 11.Generally, the installation by adhering of O-ring 11 is in the second seal.
Above-mentioned O-ring 11 protrudes from seal plane 0.25-0.5mm.Worn even if polished rod is formed to seal, it is in fact first
First and O-ring is damaged, and by replacement o circle, cost is very low, and sealing effectiveness is very good.
Above-mentioned second seal is in the cell wall of top compared with cell wall below, and it is big towards the length value of center position
3-5mm.Upper second seal is in the cell wall (in accompanying drawing 3 mark be cell wall 12) of top, and (accompanying drawing 3 is got the bid with cell wall below
It is designated as lower cell wall 13) compare, the big 3-5mm of its length value towards center of circle direction.The cell wall of upside, which is squeezed, to be moved down, its sealing surface
Polished rod can be close to, ensure sealing, even if due to much time using or handling adjustment, sent out on the cell wall of U-shaped groove
Raw certain abrasion, by the compression to boss 4, second seal U-shaped opening reduces, and the cell wall of top moves down, additionally it is possible to protects
Card sealing surface is brought into close contact with water pipe, will not produce any influence to sealing.Seal durability is grown, or even can also be real
Now reuse, energy-conserving and environment-protective.
The invention is compact-sized, good sealing effect.Packing is combined by several seals, is provided between individual seal
For keeping the first seal of sealing, the second sealing for sealing up wellhead assembly polished rod is additionally provided with each seal
Part, integral sealing reliability is high, and second seal has compensation function, can make cell wall thereon upon wear by compressing
Move down, still realize splendid sealing, seal durability length, operating efficiency has been effectively ensured.
The preferred embodiment of the invention is the foregoing is only, is not intended to limit the invention creation, it is all at this
Within the spirit and principle of innovation and creation, any modification, equivalent substitution and improvements made etc., the invention should be included in
Protection domain within.
Claims (9)
- A kind of 1. packing assemblies, it is characterised in that：Include the packing component of overall tapered structure, packing component includes heap The seal of the folded several bowl-type set, each seal top is equipped with conical opening, bottom is equipped with circle as axis hole Cylindricality mouth, boss is formed in cylindrical mouth and conical opening joint, clamping pad is provided with the upper surface of the boss；Every two is described close First seal is equipped between envelope body；Mounting groove, the mounting groove are provided with the inwall at each seal cylindrical mouth Inside it is fixed with second seal.
- A kind of 2. packing assemblies according to claim 1, it is characterised in that：The clamping pad uses metal gasket, its Upper and lower surface is plane.
- A kind of 3. packing assemblies according to claim 1, it is characterised in that：Cylinder inside each seal Shape mouth is in the same size.
- A kind of 4. packing assemblies according to claim 1, it is characterised in that：The first seal is using sealing Circle, is equipped with for installing the close of the sealing ring in the seal lower surface in top and the upper surface of lower section seal Sealing groove.
- A kind of 5. packing assemblies according to claim 4, it is characterised in that：The seal groove is in arc-shaped structure, Round-corner transition is used in seal groove and sealant surface joint.
- A kind of 6. packing assemblies according to claim 1, it is characterised in that：The second seal is integrally U-shaped Structure, O-ring is mounted on towards the outer rim of its center side in its both sides cell wall.
- A kind of 7. packing assemblies according to claim 6, it is characterised in that：The O-ring installation by adhering is in institute State in second seal.
- A kind of 8. packing assemblies according to claim 6, it is characterised in that：The O-ring protrudes from seal and put down Face 0.25-0.5mm.
- A kind of 9. packing assemblies according to claim 6, it is characterised in that：The second seal is in top Cell wall is compared with cell wall below, its big 3-5mm of length value towards center position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710978381.4A CN107724987B (en) | 2017-10-18 | 2017-10-18 | Packing seal assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710978381.4A CN107724987B (en) | 2017-10-18 | 2017-10-18 | Packing seal assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107724987A true CN107724987A (en) | 2018-02-23 |
| CN107724987B CN107724987B (en) | 2024-03-19 |
Family
ID=61210677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710978381.4A Active CN107724987B (en) | 2017-10-18 | 2017-10-18 | Packing seal assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107724987B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4560176A (en) * | 1983-07-26 | 1985-12-24 | J. M. Huber Corporation | Inverted cone stuffing box |
| US5622371A (en) * | 1996-01-11 | 1997-04-22 | Angelo; Lawrence F. | Stuffing box with improved packing rings and method |
| CN2635998Y (en) * | 2003-06-27 | 2004-08-25 | 于世强 | Carbon-silicon seal piece |
| CN201416407Y (en) * | 2009-04-30 | 2010-03-03 | 黄玉存 | Energy-saving multistage sealed stuffing box |
| CN102230538A (en) * | 2011-04-11 | 2011-11-02 | 合肥恒信汽车发动机部件制造有限公司 | Rotating shaft sealing structure |
| CN202531087U (en) * | 2012-04-16 | 2012-11-14 | 东北石油大学 | Sealing device for pumping wellhead |
-
2017
- 2017-10-18 CN CN201710978381.4A patent/CN107724987B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4560176A (en) * | 1983-07-26 | 1985-12-24 | J. M. Huber Corporation | Inverted cone stuffing box |
| US4560176B1 (en) * | 1983-07-26 | 1993-05-04 | Huber Corp J M | |
| US5622371A (en) * | 1996-01-11 | 1997-04-22 | Angelo; Lawrence F. | Stuffing box with improved packing rings and method |
| CN2635998Y (en) * | 2003-06-27 | 2004-08-25 | 于世强 | Carbon-silicon seal piece |
| CN201416407Y (en) * | 2009-04-30 | 2010-03-03 | 黄玉存 | Energy-saving multistage sealed stuffing box |
| CN102230538A (en) * | 2011-04-11 | 2011-11-02 | 合肥恒信汽车发动机部件制造有限公司 | Rotating shaft sealing structure |
| CN202531087U (en) * | 2012-04-16 | 2012-11-14 | 东北石油大学 | Sealing device for pumping wellhead |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107724987B (en) | 2024-03-19 |
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