CN2871822Y - Automatic offset three-level sealed blowout preventer of optical lever - Google Patents
Automatic offset three-level sealed blowout preventer of optical lever Download PDFInfo
- Publication number
- CN2871822Y CN2871822Y CN 200620082205 CN200620082205U CN2871822Y CN 2871822 Y CN2871822 Y CN 2871822Y CN 200620082205 CN200620082205 CN 200620082205 CN 200620082205 U CN200620082205 U CN 200620082205U CN 2871822 Y CN2871822 Y CN 2871822Y
- Authority
- CN
- China
- Prior art keywords
- gland
- sealing
- ball
- blowout preventer
- polished rod
- 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.)
- Expired - Fee Related
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Abstract
The present utility model discloses an automatic offset adjusting polish rod blowout preventer with three-level sealing, belonging to a sealing device on the oil field pumping well head, which comprises a ball cup, a ball body is positioned on the ball cup through a ball gland, the upper part of the ball body is provided with a lower gland, the upper part of the lower gland is provided with a middle gland, the upper part of the middle gland is provided with an upper gland, a sealing material body, an another sealing material body, a third sealing material body are arranged in lower, middle, and upper gland respectively, the utility model has the advantages of three-level sealing mode, good sealing, blowout prevention effect, automatic offset adjusting device that comprising the ball cup and the ball body etc enables the blowout preventer to move with polish rod timely, thereby avoiding crude oil leakage due to eccentric wear and ensuring certain burglary protection function.
Description
Technical field
The utility model provides the sealing device on a kind of oil field pumping well mouth, especially a kind of polished rod preventer.
Background technology
When preventing that oil pumper from driving the polished rod oil pumping, crude oil spills from the polished rod outside of well head, and the polished rod seal blowout hookup is set on well head usually.Present polished rod seal blowout hookup generally is made up of the packing box of polished rod outside, packing in the packing box and the packing pressure cap above the packing box, only adopts primary seal, and sealing effectiveness is poor, and after use a period of time, well head crude oil also can be revealed.This sealing simultaneously, blowout hookup can not automatic deflection adjustings, and polished rod can produce eccentric wear, and well head crude oil also can take place is revealed behind the eccentric wear.
Summary of the invention
Technical problem to be solved in the utility model is, a kind of three grades of sealing automatic deflection adjusting polished rod preventers are provided, and improving sealing, blowout prevention effect, and can carry out tuningout automatically.
The utility model is to realize like this, three grades of sealing automatic deflection adjusting polished rod preventers, it has ball cup, by the bulb gland bulb body is installed above the ball cup, bulb body top is equipped with lower cover, lower cover top is equipped with middle gland, and middle gland top is equipped with upper press cover, down, in, encapsulant body, another encapsulant body, the 3rd encapsulant body arranged respectively in the upper press cover.
Adopt three grades of sealing automatic deflection adjusting polished rod preventers of said structure, adopted three grades of sealing means, sealing, blowout prevention is effective, the automatically deviation-adjusting device that ball cup, bulb body etc. are formed, can make this preventer in time follow polished rod and move, the crude oil of having avoided causing because of eccentric wear is revealed.This preventer also has certain anti-theft feature.
Description of drawings
Fig. 1 is the schematic diagram of the utility model structure.
The specific embodiment
The embodiment that provides below in conjunction with accompanying drawing illustrates concrete structure of the present utility model.
As shown in drawings, three grades of sealing automatic deflection adjusting polished rod preventers of the utility model, it is characterized in that, it has ball cup (1), by bulb gland (2) bulb body (3) is installed above the ball cup, bulb body top is equipped with lower cover (4), and lower cover top is equipped with middle gland (8), in gland top upper press cover (9) is installed, down, in, encapsulant body (6), another encapsulant body (7), the 3rd encapsulant body (10) arranged respectively in the upper press cover.
Between each gland, between lower cover and the bulb body, can be connected by thread connecting mode between bulb gland and the ball cup.
During use, the installation site of the preventer of the utility model on well head is identical with original packing box.Each parts is installed in the outside of polished rod (11), and ball cup and well head are installed together.When eccentric wear took place, bulb was known from experience with polished rod mobile on ball cup, realizes automatic deflection adjusting.Deflection-regulating range is 0-15 ° of angle.
Described encapsulant body (6), another encapsulant body (7), the 3rd encapsulant body (10) are made up of packing respectively.Encapsulant body (6), the 3rd encapsulant body (10) can be made up of three rectangle packings respectively, and another encapsulant body (7) can be made up of a rectangle packing and a taper packing.
At described lower cover (4), middle gland (8), handle (5) is arranged respectively above the upper press cover (9).Can utilize between handle and each gland and be threaded.Its screw thread can adopt unconventional special-shaped screw thread, forms dedicated handle.Like this, can prevent that the lawless person from turning each gland, carry out stolen from well head, thereby make this preventer have certain anti-theft feature.
After this preventer uses a period of time, when needing increase or changing packing, needn't carry out emptying to pipeline and put pressure, only need after the oil pumper stop pumping, each pressure cap to be turned on and can be carried out.
Claims (3)
1, three grades of sealing automatic deflection adjusting polished rod preventers, it is characterized in that, it has ball cup (1), by bulb gland (2) bulb body (3) is installed above the ball cup, bulb body top is equipped with lower cover (4), lower cover top is equipped with middle gland (8), and middle gland top is equipped with upper press cover (9), down, in, encapsulant body (6), another encapsulant body (7), the 3rd encapsulant body (10) arranged respectively in the upper press cover.
2, three grades of sealing automatic deflection adjusting polished rod preventers as claimed in claim 1 is characterized in that described encapsulant body (6), another encapsulant body (7), the 3rd encapsulant body (10) are made up of packing respectively.
3, three grades of sealing automatic deflection adjusting polished rod preventers as claimed in claim 1 or 2 is characterized in that, at described lower cover (4), middle gland (8), handle (5) is arranged respectively above the upper press cover (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620082205 CN2871822Y (en) | 2006-03-23 | 2006-03-23 | Automatic offset three-level sealed blowout preventer of optical lever |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620082205 CN2871822Y (en) | 2006-03-23 | 2006-03-23 | Automatic offset three-level sealed blowout preventer of optical lever |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2871822Y true CN2871822Y (en) | 2007-02-21 |
Family
ID=37740168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620082205 Expired - Fee Related CN2871822Y (en) | 2006-03-23 | 2006-03-23 | Automatic offset three-level sealed blowout preventer of optical lever |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2871822Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103459764A (en) * | 2011-03-23 | 2013-12-18 | 控制压力营运私人有限公司 | Blow out preventer |
| CN104963648A (en) * | 2015-08-01 | 2015-10-07 | 侯学林 | Multi-stage packing box for oil pumping unit |
-
2006
- 2006-03-23 CN CN 200620082205 patent/CN2871822Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103459764A (en) * | 2011-03-23 | 2013-12-18 | 控制压力营运私人有限公司 | Blow out preventer |
| CN103459764B (en) * | 2011-03-23 | 2016-11-23 | 控制压力营运私人有限公司 | Preventer |
| CN104963648A (en) * | 2015-08-01 | 2015-10-07 | 侯学林 | Multi-stage packing box for oil pumping unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070221 |