CN206530707U - The lower seal of environmentally friendly closed rotating blowout preventer - Google Patents
The lower seal of environmentally friendly closed rotating blowout preventer Download PDFInfo
- Publication number
- CN206530707U CN206530707U CN201720121398.3U CN201720121398U CN206530707U CN 206530707 U CN206530707 U CN 206530707U CN 201720121398 U CN201720121398 U CN 201720121398U CN 206530707 U CN206530707 U CN 206530707U
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- sealing
- oil
- seal
- socket
- mandrel
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Abstract
The utility model discloses the lower seal of environmentally friendly closed rotating blowout preventer, bottom sealing socket（4）Shell is installed（3）Bottom and by sheath（7）Protection, rotary oil seal（10）Installed in bottom sealing socket（4）Endoporus step on, two lip oil sealings（8）It is back-to-back to be arranged on rotary oil seal（10）Top, oil sealing pressing plate（5）With bottom sealing socket（4）Connect and by lip oil sealing（8）It is pressed on bottom sealing socket（4）It is interior, lower glue core seat（11）It is threaded into mandrel（12）On, baffle plate（14）It is fixed on mandrel（12）On block lower glue core seat（11）, bottom sealing socket（4）Guidance tape is installed in the groove of endoporus（15）, it is monolithically fabricated the lower seal of environmentally friendly closed rotating blowout preventer.Lower seal of the present utility model is simple in construction, and firm and reliable connection, rotary oil seal reduces frictional force, reduces sealing surface wear, improves the service life of product, makes under balance pressure drilling work more efficiently.
Description
Technical field
The utility model is related to the environmentally friendly closed rotating blowout preventer of under balance pressure drilling, and in particular under balance pressure drilling environmental protection is close
The lower seal of enclosed rotating blowout preventer rotation assembly.
Background technology
Current under-balanced drilling technology has evolved into ripe, and it finds and reservoir protec-tion and improve the side such as bit speed
The effect in face is also accepted.With developing rapidly for petroleum industry, field of oil drilling using under-balanced drilling technology as
A kind of one preferred technique.Environmental renovation is carried out energetically by country simultaneously, and the production equipment to petroleum industry proposes higher requirement.
Lower seal is the important component of rotation assembly, and the development of lower seal device can solve current China
Life of product is low caused by the sealing part abrasion of the lower seal of existing underbalance well drilling rotary blowout preventer rotation assembly is too fast
Problem.
The content of the invention
The purpose of this utility model is：A kind of lower seal of environmentally friendly closed rotating blowout preventer is provided, rotation is solved
The problem of life of product is low caused by assembly uses the sealing part abrasion of lower seal among process too fast, simple in construction, safety
Reliably, the operating efficiency of under balance pressure drilling is improved.
Technical solution of the present utility model is：The lower seal of the environmentally friendly closed rotating blowout preventer includes lower sealing
Seat, oil sealing pressing plate, lip oil sealing, rotary oil seal, guidance tape, lower glue core seat, sheath and baffle plate；Bottom sealing socket passes through in No. one six
Corner bolt is arranged on outer casing bottom and protected by sheath, and the sealing surface between bottom sealing socket and shell is sealed up by an O-ring；
Rotary oil seal is arranged on the endoporus step of bottom sealing socket, and two lip oil sealings are back-to-back to be arranged on above rotary oil seal, lip
Oil sealing is placed back to back the pressure of medium both direction in the lubricating oil in sealed bearings simultaneously and well, lip oil sealing and rotation oil
Separated between envelope with spacer ring, oil sealing pressing plate is connected by dormant bolt with bottom sealing socket, and lip oil sealing is pressed on lower sealing
In seat；Lower glue core seat left hand thread is screwed on mandrel, is sealed by No. two O-rings and mandrel formation, baffle plate passes through in No. two six
Corner bolt, which is fixed on mandrel, blocks lower glue core seat, prevents lower glue core seat from being disengaged from mandrel；There is groove on bottom sealing socket endoporus,
Guidance tape is installed in groove；When mandrel drives lower glue core seat rotation, lower glue core seat forms dynamic with lip type oil sealing and rotary oil seal
Sealing, is monolithically fabricated the lower seal of environmentally friendly closed rotating blowout preventer.
The beneficial effects of the utility model are：1st, the lower seal of rotation assembly is simple in construction, firm and reliable connection；2nd, lead
To the effect for taking up guiding, with absorption vibration performance, and there is fabulous anti-wear performance and good dry dynamic row characteristic；Rotation oil
The coefficient of friction of envelope only has 1/3rd of lip type oil sealing, is reduced and is rubbed between bottom sealing socket and rotary oil seal using rotary oil seal
Power is wiped, the sealing surface wear between bottom sealing socket and rotary oil seal is reduced, substantially increases the service life of product, makes to owe flat
Drilling well work weigh more efficiently；3rd, lip oil sealing is placed back to back, while medium in the lubricating oil and well in sealed bearings device
The pressure of both direction.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the partial enlarged drawing of I parts in Fig. 1.
In figure：No. 1 O-rings, 2 No. two O-rings, 3 shells, 4 bottom sealing sockets, 5 oil sealing pressing plates, 6 dormant bolts, 7 sheaths,
8 lip oil sealings, 9 spacer rings, 10 rotary oil seals, 11 lower glue cores seat, 12 mandrels, 13 No. two hexagon socket head cap screws, 14 plate washers, 15 are oriented to
Band, No. 16 hexagon socket head cap screws.
Embodiment
Technical solutions of the utility model are further illustrated below in conjunction with the accompanying drawings.
As shown in Figure 1 and Figure 2, the lower seal of the environmentally friendly closed rotating blowout preventer includes bottom sealing socket 4, oil sealing pressing plate
5th, lip oil sealing 8, rotary oil seal 10, guidance tape 15, lower glue core seat 11, sheath 7 and baffle plate 14；Bottom sealing socket 4 passes through in No. one
Hex bolts 16 is arranged on the bottom of shell 3 and protected by sheath 7, is sealed up by an O-ring 1 between bottom sealing socket 4 and shell 3
Sealing surface；Rotary oil seal 10 is arranged on the endoporus step of bottom sealing socket 4, and two lip oil sealings 8 are back-to-back to be arranged on rotation
The top of oil sealing 10, lip oil sealing 8 is placed back to back the pressure of medium both direction in the lubricating oil in sealed bearings simultaneously and well,
Separated between lip oil sealing 8 and rotary oil seal 10 with spacer ring 9, oil sealing pressing plate 5 is connected by dormant bolt 6 with bottom sealing socket 4, and
Lip oil sealing 8 is pressed in bottom sealing socket 4；Lower glue core seat 11 left hand threads screw in mandrel 12 on, by No. two O-rings 2 with
The formation sealing of mandrel 12, baffle plate 14 is fixed on mandrel 12 by No. two hexagon socket head cap screws 13 blocks lower glue core seat 11, prevents down
Glue core print seat 11 is disengaged from mandrel 12；Have on the endoporus of bottom sealing socket 4 and guidance tape 15 is installed in groove, groove；When mandrel 12 drives
When lower glue core seat 11 rotates, lower glue core seat 11 and lip type oil sealing 8 and the formation dynamic sealing of rotary oil seal 10 are monolithically fabricated environmental protection closed
The lower seal of formula rotating blowout preventer.
Claims (1)
1. the lower seal of environmentally friendly closed rotating blowout preventer, it is characterized in that：It includes bottom sealing socket（4）, oil sealing pressing plate（5）、
Lip oil sealing（8）, rotary oil seal（10）, guidance tape（15）, lower glue core seat（11）, sheath（7）And baffle plate（14）；Bottom sealing socket
（4）Pass through a hexagon socket head cap screw（16）Installed in shell（3）Bottom and by sheath（7）Protection, by an O-ring（1）Sealing
Stay seal receptacle（4）And shell（3）Between sealing surface；Rotary oil seal（10）Installed in bottom sealing socket（4）Endoporus step on,
Two lip oil sealings（8）It is back-to-back to be arranged on rotary oil seal（10）Top, lip oil sealing（8）It is placed back to back sealed bearings simultaneously
The pressure of medium both direction in interior lubricating oil and well, lip oil sealing（8）With rotary oil seal（10）Between use spacer ring（9）Every
Open, oil sealing pressing plate（5）Pass through dormant bolt（6）With bottom sealing socket（4）Connection, and by lip oil sealing（8）It is pressed on bottom sealing socket
（4）It is interior；Lower glue core seat（11）Left hand thread screws in mandrel（12）On, pass through No. two O-rings（2）With mandrel（12）Form sealing,
Baffle plate（14）Pass through No. two hexagon socket head cap screws（13）It is fixed on mandrel（12）On block lower glue core seat（11）, prevent lower glue core seat
（11）From mandrel（12）It is upper to disengage；Bottom sealing socket（4）Have on endoporus and guidance tape is installed in groove, groove（15）；Work as mandrel（12）
Drive lower glue core seat（11）During rotation, lower glue core seat（11）With lip type oil sealing（8）And rotary oil seal（10）Dynamic sealing is formed, it is overall
Constitute the lower seal of environmentally friendly closed rotating blowout preventer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720121398.3U CN206530707U (en) | 2017-02-10 | 2017-02-10 | The lower seal of environmentally friendly closed rotating blowout preventer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720121398.3U CN206530707U (en) | 2017-02-10 | 2017-02-10 | The lower seal of environmentally friendly closed rotating blowout preventer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206530707U true CN206530707U (en) | 2017-09-29 |
Family
ID=59919335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720121398.3U Expired - Fee Related CN206530707U (en) | 2017-02-10 | 2017-02-10 | The lower seal of environmentally friendly closed rotating blowout preventer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206530707U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109577903A (en) * | 2018-12-27 | 2019-04-05 | 中国石油集团西部钻探工程有限公司 | Rotating blowout preventer rotation assembly easy to assemble |
| CN112728048A (en) * | 2021-01-05 | 2021-04-30 | 埃夫特智能装备股份有限公司 | Sealing structure and robot |
-
2017
- 2017-02-10 CN CN201720121398.3U patent/CN206530707U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109577903A (en) * | 2018-12-27 | 2019-04-05 | 中国石油集团西部钻探工程有限公司 | Rotating blowout preventer rotation assembly easy to assemble |
| CN109577903B (en) * | 2018-12-27 | 2024-04-09 | 中国石油天然气集团有限公司 | Rotary assembly of rotary blowout preventer easy to disassemble and assemble |
| CN112728048A (en) * | 2021-01-05 | 2021-04-30 | 埃夫特智能装备股份有限公司 | Sealing structure and robot |
| CN112728048B (en) * | 2021-01-05 | 2024-04-30 | 埃夫特智能装备股份有限公司 | Sealing structure and robot |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170929 Termination date: 20220210 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |