CN207569204U - The sealing structure of boll-weevil hanger - Google Patents
The sealing structure of boll-weevil hanger Download PDFInfo
- Publication number
- CN207569204U CN207569204U CN201721378804.0U CN201721378804U CN207569204U CN 207569204 U CN207569204 U CN 207569204U CN 201721378804 U CN201721378804 U CN 201721378804U CN 207569204 U CN207569204 U CN 207569204U
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- China
- Prior art keywords
- boll
- weevil hanger
- sealing ring
- jackscrew
- hole
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Abstract
A kind of sealing structure of boll-weevil hanger, including boll-weevil hanger and tubing head ontology, it is bullet close to the end end that holds out against of the jackscrew of boll-weevil hanger outer wall side, sealing ring pressure ring and rectangular seal are cased on boll-weevil hanger periphery between boll-weevil hanger annular convex platform and the jackscrew being sleeved in tubing head ontology jackscrew pilot hole, sealing ring pressure ring outer ring surface is equipped with radial direction through hole, the positioning screw being fixedly connected with boll-weevil hanger outer wall is radially installed in radial direction through hole, radial direction through hole internal diameter is more than positioning screw outer diameter；Rectangular seal upper side is supported by sealing ring pressure ring, sealing ring pressure ring upper side with radial direction withstand and lock boll-weevil hanger outer wall jackscrew hold out against end end tapered body coordinated with inclined-plane, it moves down sealing ring pressure ring and squeezes rectangular seal to seal up the area of space surrounded between the annular inner wall face in the annular outer wall face of the boll-weevil hanger where rectangular seal and tubing head ontology, the upper inside walls face of radial direction through hole is abutted with positioning screw.
Description
Technical field
The utility model is related to the boll-weevil hanger of inlet device, the sealing structure of specifically a kind of boll-weevil hanger.
Background technology
Boll-weevil hanger is located in tubing head, to hang tubing string, and seals the ring between tubing string and production string
Shape space.When it will not only hang tubing string in well, the gravity of tubing string is born, but also to ensure that boll-weevil hanger assembles
In the sealing problem of tubing head ontology.
It is shown in Figure 1：The sealing structure of the boll-weevil hanger is mainly by tubing head ontology 1, boll-weevil hanger 2, retainer
3rd, seat ring 4, rectangular seal 5, " O " shape sealing ring 6, jackscrew 7 form.The retainer 3, seat ring 4, rectangular seal 5 and " O " shape
Sealing ring 6 is sequentially sleeved on from the bottom to top on 2 periphery of boll-weevil hanger, and still, seat ring 4 is sleeved on 1 endoporus of tubing head ontology
On ring-shaped step, although such design can play sealing function, seat ring 4 bears very big pressure, accelerates seat ring 4
Wear and aging.
Invention content
The purpose of this utility model is that：In view of the above shortcomings of the prior art, provide that a kind of structure is simpler, durability
It is high, under the premise of the ability of enhancing boll-weevil hanger carrying well oil tubing string gravity, ensure the oil of boll-weevil hanger leakproofness
The sealing structure of pipe hanger.
The technical solution adopted in the utility model is a kind of sealing structure of boll-weevil hanger, including boll-weevil hanger and
Tubing head ontology, the boll-weevil hanger are sleeved on tubing head ontology endoporus by the annular convex platform on the boll-weevil hanger periphery
On circumferentially disposed ring-shaped step, and the outer ring surface of the annular convex platform and the internal face of tubing head ontology endoporus are bonded to each other,
Jackscrew pilot hole is provided on tubing head ontology above the boll-weevil hanger annular convex platform, equipped with jackscrew, the jackscrew in the hole
From the outer wall for radially withstanding and locking boll-weevil hanger, and the end end that holds out against of the jackscrew close to boll-weevil hanger outer wall side is
Bullet；On boll-weevil hanger periphery between the boll-weevil hanger annular convex platform and the jackscrew being sleeved in jackscrew pilot hole
Sealing ring pressure ring and rectangular seal are set with, offers radial direction through hole on the sealing ring pressure ring outer ring surface, this is radially passed through
The positioning screw being fixedly connected with boll-weevil hanger outer wall radially is coated in through-hole, the internal diameter of the radial direction through hole is more than positioning
The outer diameter of screw；The rectangular seal upper side is supported by sealing ring pressure ring, which withstands with radial direction
And the jackscrew for locking boll-weevil hanger outer wall is held out against end end tapered body and is coordinated with inclined-plane, is moved down sealing ring pressure ring and is squeezed square
Shape sealing ring seals up the annular inner wall in the annular outer wall face of the boll-weevil hanger where rectangular seal and tubing head ontology
The area of space surrounded between face, meanwhile, the upper inside walls face of sealing ring pressure ring radial direction through hole is abutted with positioning screw；Work as top
When silk exits jackscrew pilot hole completely, the sealing ring pressure ring moves up, and makes the downside internal face of sealing ring pressure ring radial direction through hole
It is abutted with positioning screw, rectangular seal resets.
Oil pipe suspension between the outer ring surface of the boll-weevil hanger annular convex platform and the internal face of tubing head ontology endoporus
Seal groove is offered on device annular convex platform, " O " type sealing ring is set in the seal groove.
The beneficial effects of the utility model are：The utility model structure is simpler, durability is high, not only enhances oil pipe suspension
Device carries the ability of well oil tubing string gravity, and ensures boll-weevil hanger leakproofness.
Description of the drawings
The utility model will be further described below with reference to the accompanying drawings.
Fig. 1 is the structure diagram of the sealing structure of existing boll-weevil hanger.
Fig. 2 is the structure diagram of the utility model sealing state.
Fig. 3 is the structure diagram of the utility model state to be sealed.
Code name meaning in figure：1st, 8-tubing head ontology；2nd, 9-boll-weevil hanger；3-retainer；4-seat ring；5th, 10-square
Shape sealing ring；6th, 11-" O " shape sealing ring；7th, 12-jackscrew；13-sealing ring pressure ring；14-positioning screw.
Specific embodiment
Referring to shown in Fig. 2, Fig. 3：The utility model is a kind of sealing structure of boll-weevil hanger, including boll-weevil hanger 9
With tubing head ontology 8, the boll-weevil hanger 9 is sleeved on tubing head sheet by the annular convex platform on 9 periphery of boll-weevil hanger
On the circumferentially disposed ring-shaped step of 8 endoporus of body（Preferably, the contact surface of the contact surface of annular convex platform and ring-shaped step carries out
45°）, and the outer ring surface of the annular convex platform and the internal face of 8 endoporus of tubing head ontology are bonded to each other, the boll-weevil hanger 9
Jackscrew pilot hole is provided on tubing head ontology 8 above annular convex platform, equipped with jackscrew 12 in the hole, the jackscrew 12 is from radially withstanding
And lock the outer wall of boll-weevil hanger 9（Jackscrew 12 and locking withstand 9 outer wall of boll-weevil hanger as existing mature technology）, and lean on
The end end that holds out against of the jackscrew 12 of 9 outer wall side of nearly boll-weevil hanger is bullet.
Boll-weevil hanger 9 between 9 annular convex platform of boll-weevil hanger and the jackscrew 12 being sleeved in jackscrew pilot hole
Sealing ring pressure ring 13 and rectangular seal 10 are set on periphery, this part of sealing structure is avoided and directly bears well oil tubing string
Gravity, offer radial direction through hole on 13 outer ring surface of sealing ring pressure ring, be radially coated with and oil in the radial direction through hole
The positioning screw 14 that 9 outer wall of pipe hanger is fixedly connected, the internal diameter of the radial direction through hole are more than the outer diameter of positioning screw 14；
10 upper side of rectangular seal is supported by sealing ring pressure ring 13, and 13 upper side of sealing ring pressure ring is with radially pushing up
Firmly and lock 9 outer wall of boll-weevil hanger jackscrew 12 hold out against end end tapered body coordinated with inclined-plane, move down sealing ring pressure ring 13
（It is moved up along 8 axial direction of tubing head ontology）And it squeezes rectangular seal 10 and is hanged to seal up the oil pipe where rectangular seal 10
The area of space surrounded between the annular outer wall face of hanging device 9 and the annular inner wall face of tubing head ontology 8, meanwhile, sealing ring pressure ring
The upper inside walls face of 13 radial direction through holes is abutted with the positioning screw 14 in through hole；When jackscrew 12 exits jackscrew pilot hole completely
When, the sealing ring pressure ring 13 moves up, and makes the downside internal face of 13 radial direction through hole of sealing ring pressure ring with determining in the through hole
Position screw 14 abuts, and rectangular seal 10 resets.
In order to further improve sealing effect, the outer ring surface of 9 annular convex platform of boll-weevil hanger in tubing head ontology 8
Seal groove is offered on 9 annular convex platform of boll-weevil hanger between the internal face in hole, the sealing of " O " shape is set in the seal groove
Circle 11.
The course of work：Boll-weevil hanger 9 is sleeved on the circumferentially disposed ring-shaped step of 8 endoporus of tubing head ontology, to top
Jackscrew 12 is screwed in silk pilot hole, the bullet which holds out against end end constantly applies to 13 upper side of sealing ring pressure ring
The thrust of pushing pushes sealing ring pressure ring 13 to be moved down along 8 axial direction of tubing head ontology, and the sealing ring pressure ring 13 squeezes square
Shape sealing ring 10 seals up the annular outer wall face of boll-weevil hanger 9 at 10 place of rectangular seal and the annular of tubing head ontology 8
The area of space surrounded between internal face, meanwhile, upper inside walls face and the positioning screw 14 of 13 radial direction through hole of sealing ring pressure ring
It abuts.When jackscrew 12 exits jackscrew pilot hole completely, the sealing ring pressure ring 13 moves up（Along 8 axial direction of tubing head ontology
It moves down）, the downside internal face of the 13 radial direction through hole of sealing ring pressure ring abuts with positioning screw 14, and rectangular seal 10 resets.
More than specific technical solution is only to illustrate the utility model, rather than its limitations.Although with reference to above-mentioned specific skill
The utility model is described in detail in art scheme, it will be understood by those of ordinary skill in the art that：It still can be right
Above-mentioned specific technical solution modifies or carries out equivalent replacement to which part technical characteristic；And these are changed or replace
It changes, the spirit and scope of it does not separate the essence of the corresponding technical solution the utility model.
Claims (2)
1. a kind of sealing structure of boll-weevil hanger, including boll-weevil hanger and tubing head ontology, the boll-weevil hanger passes through
Annular convex platform on the boll-weevil hanger periphery is sleeved on the circumferentially disposed ring-shaped step of tubing head ontology endoporus, and the ring
The outer ring surface of shape boss and the internal face of tubing head ontology endoporus are bonded to each other, the oil above the boll-weevil hanger annular convex platform
Jackscrew pilot hole is provided on tube head ontology, equipped with jackscrew in the hole, the jackscrew is from radially withstanding and lock the outer of boll-weevil hanger
Wall, and the end end that holds out against of the jackscrew close to boll-weevil hanger outer wall side is bullet；It is characterized in that：The oil pipe suspension
Be set on boll-weevil hanger periphery between device annular convex platform and the jackscrew being sleeved in jackscrew pilot hole sealing ring pressure ring and
Rectangular seal offers radial direction through hole on the sealing ring pressure ring outer ring surface, be radially coated in the radial direction through hole with
The positioning screw that boll-weevil hanger outer wall is fixedly connected, the internal diameter of the radial direction through hole are more than the outer diameter of positioning screw；The square
Shape sealing ring upper side is supported by sealing ring pressure ring, and the sealing ring pressure ring upper side is with radially withstanding and locking outside boll-weevil hanger
The jackscrew of wall is held out against end end tapered body and is coordinated with inclined-plane, is moved down sealing ring pressure ring and is squeezed rectangular seal to seal up square
The space region surrounded between the annular outer wall face of boll-weevil hanger where shape sealing ring and the annular inner wall face of tubing head ontology
Domain, meanwhile, the upper inside walls face of sealing ring pressure ring radial direction through hole is abutted with positioning screw；When jackscrew exits jackscrew assembling completely
Kong Shi, the sealing ring pressure ring move up, and the downside internal face of sealing ring pressure ring radial direction through hole are made to be abutted with positioning screw, rectangle
Sealing ring resets.
2. the sealing structure of boll-weevil hanger according to claim 1, it is characterised in that：The boll-weevil hanger convex annular
Seal groove is offered on boll-weevil hanger annular convex platform between the outer ring surface of platform and the internal face of tubing head ontology endoporus, this is close
" O " type sealing ring is set in sealing groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721378804.0U CN207569204U (en) | 2017-10-24 | 2017-10-24 | The sealing structure of boll-weevil hanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721378804.0U CN207569204U (en) | 2017-10-24 | 2017-10-24 | The sealing structure of boll-weevil hanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207569204U true CN207569204U (en) | 2018-07-03 |
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ID=62696049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721378804.0U Active CN207569204U (en) | 2017-10-24 | 2017-10-24 | The sealing structure of boll-weevil hanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207569204U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109958398A (en) * | 2019-04-26 | 2019-07-02 | 昆山艾蓓蓓阀门有限公司 | A kind of four-way bobbin seal structure applied to oil well |
| CN110848141A (en) * | 2019-11-07 | 2020-02-28 | 江苏方时远略科技咨询有限公司 | Magnetic centrifugal pump with good sealing structure |
| CN117072104A (en) * | 2023-10-13 | 2023-11-17 | 大庆市天德忠石油科技有限公司 | Oil well casing head |
-
2017
- 2017-10-24 CN CN201721378804.0U patent/CN207569204U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109958398A (en) * | 2019-04-26 | 2019-07-02 | 昆山艾蓓蓓阀门有限公司 | A kind of four-way bobbin seal structure applied to oil well |
| CN109958398B (en) * | 2019-04-26 | 2024-05-07 | 昆山艾蓓蓓阀门有限公司 | Four-way sleeve sealing structure applied to oil well |
| CN110848141A (en) * | 2019-11-07 | 2020-02-28 | 江苏方时远略科技咨询有限公司 | Magnetic centrifugal pump with good sealing structure |
| CN117072104A (en) * | 2023-10-13 | 2023-11-17 | 大庆市天德忠石油科技有限公司 | Oil well casing head |
| CN117072104B (en) * | 2023-10-13 | 2024-01-09 | 大庆市天德忠石油科技有限公司 | Oil well casing head |
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