CN202064870U - Cavity pressure self-regulating assembly type polished rod seal box - Google Patents
Cavity pressure self-regulating assembly type polished rod seal box Download PDFInfo
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- CN202064870U CN202064870U CN2011200630794U CN201120063079U CN202064870U CN 202064870 U CN202064870 U CN 202064870U CN 2011200630794 U CN2011200630794 U CN 2011200630794U CN 201120063079 U CN201120063079 U CN 201120063079U CN 202064870 U CN202064870 U CN 202064870U
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- polished rod
- rubber pad
- sealing
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Abstract
The utility model relates to a cavity pressure self-regulating assembly type polished rod seal box which is suitable for a pumping unit and a production well and comprises a working seal, a polished rod disengagement seal, a replacement seal and a self-aligning structure, wherein the working seal is provided with a retaining ring, a main sealing element and an inner pressure cavity, the polished rod disengagement seal is provided with a rotary sealing cover on one side of a core body middle cavity, the replacement seal is used for controlling a pair of seal parts through an adjusting bolt, and the self-aligning structure is welded with an eccentric disc on the lower side of a joint and is fixed through a clamping flange and a fixing flange. The cavity pressure self-regulating assembly type polished rod seal box has the characteristics that the well top is convenient to align, the main sealing element has long service life and is easy to replace, and the oil flow channel is automatically closed after the polished rod is disengaged, thereby achieving the purposes of prolonging the service life of the main sealing element, reducing the labor intensity of the workers and reducing the environmental pollution.
Description
Technical field
The utility model relates to the wellhead equipment of pumping production well, is from pressure regulation assembly type polished rod seal box in a kind of chamber.
Background technology
In the oil well production process of pumping production, polished rod is in rectilinear motion state up and down reciprocatingly all the time, so must seal polished rod.In the production and management process of oil well, people adopt various sealing devices that the polished rod of motion is sealed, but, up to the present, existing sealing device exposes many problems, and relatively difficulty, seal weak point service time, the disconnected back crude oil race leakage conductance of taking off of polished rod cause contaminated environment etc., thereby oil well production efficient is reduced such as the replacing seal, labor strength strengthens, and cost of production rises.Though people are also constantly designing the polish rod seal device that makes new advances,, desirable without comparison all the time product; Therefore, on-the-spot need novel polish rod seal device, reach change seal easily, seal service time is long, polished rod is disconnected can seal the purpose of well head automatically after taking off, so that overcome all defect of existing sealing device.
The utility model content
The purpose of this utility model provides a kind of production wellhead polish rod seal device, overcome all defect of existing polish rod seal device, reach change seal easily, seal service time is long, take off the back and seal oil flow channel automatically, reduce production costs and the purpose of labor strength, minimizing environment pollution when polished rod is disconnected.
Technical solution of the present utility model is to realize like this, in the chamber from pressure regulation assembly type polished rod seal box, constitute by parts such as primary seal, replacing sealing, the disconnected DecryptDecryption envelope of polished rod and aligning structures, its special character is: (1) tubing head 33 is installed on the well head 34, polished rod 1 passes main oil gallery 35, adjusts heart body 11 or helmet 4 its center is overlapped with polished rod 1 center, aligns supported flange 29 and mounting flange 32 then, the bolt group 28 that is tightened is fixed on the well head 34 whole device.(2) primary seal by adjusting screw(rod) 2, be equipped with jack panel 3, helmet 4, clasp 5, primary seal 6, T jacket 7, pressure ring 8 and last ring-shaped rubber pad 10 and constitute, press chamber 9 in forming between T jacket 7 and pressure ring 8 and the last ring-shaped rubber pad 10, clasp 5 is to be inserted mutually by two parts symmetrical to form toroidal, and has dismountable groove 43.(3) change sealing by last hold-down bolt 14, regulate bolt 18, set bolt 19, following hold-down bolt 20, pressing plate 21, sealing companion 22, side cover 23, side cover rubber pad 24, wedge shape briquetting 36, side rubber pad 37, side guide 38, cottor pin 39, sealed core 40 and rubber pad 41 constitute, two medial surfaces of heart body 11 are symmetrically installed with a pair of sealing companion 22, sealing companion 22 is made up of sealed core 40 and rubber pad 41, regulate bolt 18 and pass heart body 11, side rubber pad 37 and side guide 38 are connected on the screw thread of sealed core 40, set bolt 19 compresses side rubber pad 37 by side guide 38, pressing plate 21 inserts by heart body 11, in the space that side rubber pad 37 and sealing companion 22 form, make pressing plate 21 compression seals companion 22 by wedge shape briquetting 36, two other side of heart body 11 is fixing with side cover 23 and side cover rubber pad 24 by last hold-down bolt 14 and following hold-down bolt 20.(4) the disconnected DecryptDecryption envelope of polished rod is made of heart body 11, epicoele 12, axle 15, seal cover 16, lumen 17 and cavity of resorption 27, seal cover 16 is fixed as one with axle 15, axle 15 is installed in the axle mounting groove 13 of heart body 11 lumens 17 1 sides, and epicoele 12 bottoms are communicated with lumen 17, and lumen 17 bottoms are communicated with cavity of resorption 27.(5) core-regulating mechanism is made of connector 26, set bolt group 28, supported flange 29, eccentric disc 30, sealing ring 31, mounting flange 32 and tubing head 33, connector 26 and eccentric disc 30 are integrally welded, mounting flange 32 and tubing head 33 are integrally welded, supported flange 29 and mounting flange 32 have arc bolt hole 42, what connect supported flange 29 and mounting flange 32 has a set bolt group 28, between eccentric disc 30 and mounting flange 32 sealing ring 31 is arranged.
The beneficial effects of the utility model are: (1) utilizes this device when polished rod pumps, fluid pressure changes the meeting automatism in the downside of primary seal 6, and the very little sealing effectiveness that just can reach of the pressure that acts on primary seal 6 upper sides, like this, primary seal is long service time, good sealing effect is changed number of times and is reduced, and can save production cost.(2) this device is designed to expose structure with primary seal 6, makes installation, changes simple to operately, and this will alleviate working strength of workers.(3) design of this device has eccentric disc 30, supported flange 29 and mounting flange 32, and all parts all are connected on the eccentric disc 30, adjusts the concentric degree with the polished rod center easily.(4) this device design has the polished rod DecryptDecryption seal structure that break, can avoid crude oil to leak and cause the environment pollution and the wasting of resources at break short time inner sealing oil flow channel after taking off of polished rod.So this device has the intracavity liquid automatic Regulation, primary seal service time is long, it is simple to operate to change, and it is easy to adjust the center that aligns, and the polished rod break-off accident occurs and seals characteristics such as oil flow channel automatically.
Description of drawings
Fig. 1 is that the syndeton that the utility model is installed on the well head is partly cutd open figure.Wherein: 1. polished rod; 2. adjusting screw(rod); 3. each jack panel; 4. helmet; 5. clasp; 6. primary seal; 7.T jacket; 8. pressure ring; 9. interior pressure chamber; 10. go up ring-shaped rubber pad; 11. heart body; 12. epicoele; 13. axle mounting groove; 14. last hold-down bolt; 15. axle; 16. seal cover; 17. lumen; 18. adjusting bolt; 19. adjusting bolt; 20. following hold-down bolt; 21. pressing plate; 22. sealing companion; 23. side cover; 24. side cover rubber pad; 25. following ring-shaped rubber pad; 26. connector; 27. cavity of resorption; 28. set bolt group; 29. supported flange; 30. eccentric disc; 31. sealing ring; 32. mounting flange; 33. tubing head; 34. well head; 35. main oil gallery.
Fig. 2 is that the utility model is installed in a syndeton left side on the well head and looks and partly cut open figure.Wherein: 36. wedge shape briquettings; 37. side rubber pad; 38. side guide; 39. cottor pin; 40. sealed core; 41. rubber pad.
Fig. 3 is the front view of clasp in the utility model.
Fig. 4 is the vertical view of clasp in the utility model.
Fig. 5 is the vertical view of supported flange and mounting flange in the utility model.Wherein: 42. arc bolts hole.
Fig. 6 is that the syndeton of the utility model when regulating center position partly cutd open figure.
Fig. 7 is that the syndeton of the utility model when changing primary seal partly cutd open figure.Wherein: 43. grooves.
Fig. 8 be the utility model work as polished rod break, take off the back automatically the syndeton of sealing oil flow channel partly cut open figure.
Fig. 9 is that the utility model is when shedding heart body and partly cuing open figure with the syndeton behind the inner part.
The specific embodiment
Primary seal mechanism has adjusting screw(rod) 2, be equipped with jack panel 3, helmet 4, clasp 5, primary seal 6, T jacket 7, pressure ring 8 and last ring-shaped rubber pad 10, helmet 4 is by heart body 11 or the connector 26 (among Fig. 9) of being threaded, adjusting screw(rod) 2 makes the lower surface be pressed in the upside of primary seal 6 by the screw thread that is connected with helmet 4, clasp 5 (Fig. 3, among Fig. 4) be to insert mutually by two parts symmetrical to form toroidal, and has dismountable groove 43 (among Fig. 7), primary seal 6 is installed between clasp 5 and polished rod 1, primary seal 6 is formed by the rubber strip of outsourcing nylon rope or by packing, T jacket 7 inserts in the upper-side hole of pressure ring 8, and last ring-shaped rubber pad 10 is installed between pressure ring 8 and the heart body 11.When polished rod 1 normally pumped, crude oil was pressed chamber 9 in main oil gallery 35, cavity of resorption 27, lumen 17, epicoele 12 flow to, and fluid pressure increases the meeting automatism in interior pressure chamber 9, and interior pressure chamber 9 promotes T jackets 7 along moving on the pressure ring 8, presses to the downside of primary seal 6.
Change sealing mechanism and have last hold-down bolt 14, regulate bolt 18, set bolt 19, following hold-down bolt 20, pressing plate 21, sealing companion 22, side cover 23, side cover rubber pad 24, last rubber pad 36, side rubber pad 37, side guide 38, cottor pin 39, sealed core 40 and following rubber pad 41, two medial surfaces of heart body 11 are symmetrically installed with a pair of sealing companion 22, sealing companion 22 is made up of sealed core 40 and rubber pad 41, regulate bolt 18 and pass heart body 11, side rubber pad 37 and side guide 38 are connected on the screw thread of sealed core 40 (among Fig. 2), set bolt 19 compresses side rubber pad 37 by side guide 38, pressing plate 21 inserts by heart body 11, in the space that side rubber pad 37 and sealing companion 22 form, two other side of heart body 11 is fixing with side cover 23 and side cover rubber pad 24 by last hold-down bolt 14 and following hold-down bolt 20.When changing primary seal 6, adjusting bolt 18 by the rotation both sides makes sealing companion 22 shift to polished rod 1, and make it to hold tightly, afterwards, rotation helmet 4 makes adjusting screw(rod) 2 and is equipped with jack panel 3 and moves simultaneously, with prying open and remove clasp 5 in the instrument insertion groove 43, expose primary seal 6, just replaceable primary seal (among Fig. 7).
The disconnected DecryptDecryption sealing mechanism of polished rod has heart body 11, epicoele 12, axle 15, seal cover 16, lumen 17 and cavity of resorption 27, seal cover 16 is fixed as one with axle 15, seal cover also can be enclosed within on the axle, perhaps seal cover can be designed to one with axle is directly made by rubber, axle 15 is installed in the axle mounting groove 13 of heart body 11 lumens 17 1 sides, after the installation shaft, fix with filler in the groove.When the polished rod break-off accident occurring, 1 moment of polished rod extracts from this device, and all chambeies all are connected to become passage, and big quantity of fluid is from the upwards ejection of this passage, and the liquid of ejection drives seal cover 16 along 15 rotation, covers epicoele 12 (among Fig. 8).
Core-regulating mechanism has connector 26, set bolt group 28, supported flange 29, eccentric disc 30, sealing ring 31, mounting flange 32 and tubing head 33, connector 26 and eccentric disc 30 are integrally welded, mounting flange 32 and tubing head 33 are integrally welded, supported flange 29 and mounting flange 32 have arc bolt hole 42 (among Fig. 5), what connect supported flange 29 and mounting flange 32 has a set bolt group 28, between eccentric disc 30 and mounting flange 32 sealing ring 31 is arranged.When mounted, at first tubing head 33 is installed on the well head 34, again eccentric disc 30 is reached and pack into polished rod 1 with upper-part, treat polished rod 1 be connected with sucker rod finish after, rotate this device, make its center concentric, place sealing ring 31, supported flange 29 is fixed on above the mounting flange 32 (among Fig. 6) by set bolt group 28 with polished rod 1.
When the adverse current control device is intact in borehole pressure does not reach blowing ability and pipeline, can and unload, adopt helmet 4 to be tightened on directly that (among Fig. 9) installs on the connector 26 heart body 11 with inner part.
Claims (1)
- In the chamber from pressure regulation assembly type polished rod seal box, by working seal, change parts such as sealing, the disconnected DecryptDecryption envelope of polished rod and aligning structure and constitute together, it is characterized in that:(1) tubing head (33) is installed on the well head (34), polished rod (1) passes main oil gallery (35), adjusting heart body (11) or helmet (4) makes its center overlap with polished rod (1) center, align supported flange (29) and mounting flange (32) then, the bolt group that is tightened (28) is fixed on the well head (34) whole device;(2) primary seal by adjusting screw(rod) (2), be equipped with jack panel (3), helmet (4), clasp (5), primary seal (6), T jacket (7), pressure ring (8) and last Gask-O-Seal (10) formation, press chamber (9) in forming between T jacket (7) and pressure ring (8) and the last Gask-O-Seal (10), clasp (5) is to be inserted mutually by two parts symmetrical to form toroidal, and has dismountable groove (43);(3) change sealing by last hold-down bolt (14), regulate bolt (18), set bolt (19), following hold-down bolt (20), pressing plate (21), sealing companion (22), side cover (23), side cover rubber pad (24), wedge shape briquetting (36), side rubber pad (37), side guide (38), cottor pin (39), sealed core (40) and rubber pad (41) constitute, two medial surfaces of heart body (11) are symmetrically installed with a pair of sealing companion (22), sealing companion (22) is made up of sealed core (40) and rubber pad (41), regulate bolt (18) and pass heart body (11), side rubber pad (37) and side guide (38) are connected on the screw thread of sealed core (40), set bolt (19) compresses side rubber pad (37) by side guide (38), pressing plate (21) inserts by heart body (11), in the space that side rubber pad (37) and sealing companion (22) form, make pressing plate (21) compression seal companion (22) by wedge shape briquetting (36), two other side of heart body (11) is fixing with side cover (23) and side cover rubber pad (24) by last hold-down bolt (14) and following hold-down bolt (20);(4) the disconnected DecryptDecryption envelope of polished rod is made of heart body (11), epicoele (12), axle (15), seal cover (16), lumen (17) and cavity of resorption (27), seal cover (16) is fixed as one with axle (15), axle (15) is installed in the axle mounting groove (13) of heart body (11) lumen (17) one sides, epicoele (12) bottom is communicated with lumen (17), and lumen (17) bottom is communicated with cavity of resorption (27);(5) core-regulating mechanism is made of connector (26), set bolt group (28), supported flange (29), eccentric disc (30), sealing ring (31), mounting flange (32) and tubing head (33), connector (26) and eccentric disc (30) are integrally welded, mounting flange (32) and tubing head (33) are integrally welded, supported flange (29) and mounting flange (32) have arc bolt hole (42), what connect supported flange (29) and mounting flange (32) has a set bolt group (28), between eccentric disc (30) and mounting flange (32) sealing ring (31) is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200630794U CN202064870U (en) | 2011-03-06 | 2011-03-06 | Cavity pressure self-regulating assembly type polished rod seal box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200630794U CN202064870U (en) | 2011-03-06 | 2011-03-06 | Cavity pressure self-regulating assembly type polished rod seal box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202064870U true CN202064870U (en) | 2011-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200630794U Expired - Fee Related CN202064870U (en) | 2011-03-06 | 2011-03-06 | Cavity pressure self-regulating assembly type polished rod seal box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202064870U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216205A (en) * | 2012-04-18 | 2013-07-24 | 北京探矿工程研究所 | Adjustable orifice sealing device for geological drilling |
| CN111120749A (en) * | 2019-12-31 | 2020-05-08 | 江苏湃森科技有限公司 | Gland formula fire control connects |
-
2011
- 2011-03-06 CN CN2011200630794U patent/CN202064870U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216205A (en) * | 2012-04-18 | 2013-07-24 | 北京探矿工程研究所 | Adjustable orifice sealing device for geological drilling |
| CN111120749A (en) * | 2019-12-31 | 2020-05-08 | 江苏湃森科技有限公司 | Gland formula fire control connects |
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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: 20111207 Termination date: 20120306 |