CN201110151Y - Novel well head sealing device - Google Patents
Novel well head sealing device Download PDFInfo
- Publication number
- CN201110151Y CN201110151Y CNU2007200153375U CN200720015337U CN201110151Y CN 201110151 Y CN201110151 Y CN 201110151Y CN U2007200153375 U CNU2007200153375 U CN U2007200153375U CN 200720015337 U CN200720015337 U CN 200720015337U CN 201110151 Y CN201110151 Y CN 201110151Y
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- CN
- China
- Prior art keywords
- sealing
- spherical
- sleeve
- main body
- supporting positive
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- Expired - Fee Related
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Abstract
The utility model relates to a novel well mouth sealing device for sealing well mouth pumping rod polish rod in oil recovery operation in oil fields, which comprises a lower main body, a glue rod, a pressure cap, a ball-shaped female screw, a sealing box, an upper main body, a glue piston, an upper stabilizing sleeve, a conical pressure sleeve, a thick conical sealing sleeve, a thin conical sealing sleeve, a middle stabilizing sleeve, an upper sealing filler, a lower sealing filler, a lower stabilizing sleeve, a spherical lower joint and a screw bolt, wherein the lower main body is connected with the screw threads of the pressure cap, the screw bolt is inserted into the glue piston, the screw bolt and the pressure cap, and the spherical female screw and the lower main body are all connected through screw threads, the spherical female screw is utilized to tightly fasten the spherical lower joint, the middle stabilizing sleeve, the upper sealing filler, the lower sealing filler and the lower stabilizing sleeve are placed into the sealing box for the spherical lower joint, and the sealing box and the spherical lower joint are connected through screw threads after being tightly pressed, the upper stabilizing sleeve, the conical pressure sleeve, the thick conical sealing sleeve and the thin conical sealing sleeve are placed in the sealing box to be tightly pressed and sealed with the upper main body, and the upper main body is connected with the sealing box through screw threads. The device solves the problem of the prior art that sealing filler is faster to be abraded and is frequently changed, which can be widely used in oil recovery operations in oil fields.
Description
Technical field:
The utility model relates to a kind of novel well mouth sealing device that sealing well head sucker rod polished rod is used in a kind of oil field operation.
Background technology:
The problem that the conventional well mouth sealing device that uses at present domestic each oil field exists is the airtight and watertight padding very fast seal failure in the relatively shorter time that makes of generally wearing and tearing, and must frequently change airtight and watertight padding, brings very big inconvenience to oil producing operation; Fracture or come off and do not have the blowout prevention function when polished rod in addition. therefore, we must develop and a kind ofly set upright automatically, blowout prevention, well mouth sealing device that abrasion resistance is high.
The utility model content:
The utility model purpose provides a kind of novel well mouth sealing device, this device solves the airtight and watertight padding wearing and tearing in the well mouth sealing device that exists in the prior art comparatively fast need often to change, and polished rod fractures or comes off and do not have the problem of blowout prevention function.This device have automatically set upright, blowout prevention, characteristics that abrasion resistance is high.
The technical scheme that its technical problem that solves the utility model adopts is:
A kind of novel well mouth sealing device by down body, glue rod, pressure cap, spherical nut, seal box, upper body, plug, go up supporting positive cover, taper gland, thick cone-shaped sealed gland, thin cone-shaped sealed gland, middle supporting positive cover, upper gland packing, lower seal filler, supporting positive cover, spherical lower contact, screw rod are formed down; Following body is threaded with pressure cap, screw rod is inserted in the glue rod, screw rod and pressure cap, spherical nut is with following body and is threaded, with the fastening spherical lower contact of spherical nut, with middle supporting positive cover, upper gland packing, the lower seal filler, following supporting positive cover is respectively charged in the autumn shape lower contact and with seal box it is compressed sealing back seal box and be threaded with spherical lower contact, set up universal ball joint in spherical lower contact and following body junction, to go up supporting positive cover, awl row gland, thick cone-shaped sealed gland, thin awl row sealing shroud is put into seal box and is compressed sealing with upper body, upper body is threaded with seal box, and plug slides in upper body; When assembling and work, the lower seal filler is made of high temperature resistant compounded rubber, adopts the concavo-convex special construction that matches can increase wear-compensating and sealing effectiveness; Upper gland packing is made of the high temperature resistant compounded rubber of multilayer taper; Three groups of supporting positive covers have been set up at the position, upper, middle and lower of seal box, this supporting positive cover is the bivalve structure, material is than the little many brass of polished rod hardness, in polished rod pumps process, supporting positive cover directly contacts with polished rod, play and well set upright positioning action, alleviated the wearing and tearing of polished rod significantly, thereby prolonged the application life of airtight and watertight padding airtight and watertight padding; The universal joint that spherical lower contact and following body ball-and-socket are formed can be revised departing from effectively of polished rod and wellhead assembly; When needs replace with encapsulant, the screw rod of the both sides that turn clockwise, screw rod promotes both sides glue rod and finishes the closing well task, the at this moment replaceable encapsulant of going up, after replacing finishes, counterclockwise turn screw rod, the glue rod is removed closing well task to moving in the other direction; When polished rod fractureed or come off, plug can be sealed upper body polished rod through hole rapidly under spring promotes in the upper body assembly, plays good blowout prevention effect.
The beneficial effects of the utility model are that the polished rod seal box in the sealing device is to have set up three groups of supporting positive covers at the position, upper, middle and lower of double-layer seal filler, so in polished rod reciprocating motion process, rise and set upright positioning action; In the upper body assembly, set up the disconnected blowout prevention plug that takes off of polished rod under spring action, can rapidly upper body polished rod through hole have been sealed, played good blowout prevention effect.
Description of drawings:
Accompanying drawing is the utility model overall structure schematic diagram.
In the accompanying drawing 1, body down, 2, the glue rod, 3, pressure cap, 4, spherical nut, 5, seal box, 6, upper body, 7, plug, 8, go up supporting positive cover, 9, the taper gland, 10, thick cone-shaped sealed gland, 11, thin cone-shaped sealed gland, 12, middle supporting positive cover, 13, upper gland packing, 14, the lower seal filler, 15, supporting positive cover down, 16, spherical lower contact, 17, screw rod.
The specific embodiment:
In the accompanying drawings, a kind of novel well mouth sealing device by down body 1, glue rod 2, pressure cap 3, spherical nut 4, seal box 5, upper body 6, plug 7, go up supporting positive cover 8, taper gland 9, thick cone-shaped sealed gland 10, thin cone-shaped sealed gland 11, middle supporting positive cover 12, upper gland packing 13, lower seal filler 14, supporting positive cover 15, spherical lower contact 16, screw rod 17 are formed down; Following body 1 is threaded with pressure cap 3, screw rod 17 is inserted in the glue rod 2, screw rod 17 and pressure cap 3, spherical nut 4 is with following body 1 and is threaded, with spherical nut 4 fastening spherical lower contacts 16, with middle supporting positive cover 12, upper gland packing 13, lower seal filler 14, after following supporting positive cover 15 is respectively charged in the autumn shape lower contact 16 and with seal box 5 it is compressed sealing, seal box 5 is threaded with spherical lower contact 16, set up universal ball joint in spherical lower contact 16 with following body 1 junction, to go up supporting positive cover 8, taper gland 9, thick cone-shaped sealed gland 10, thin awl row sealing shroud 11 is put into seal box 5 usefulness upper bodies 6 and is compressed sealing, upper body 6 is threaded with seal box 5, and plug 7 slides in upper body 6.
Claims (1)
1, a kind of novel well mouth sealing device is by following body (1), glue rod (2), pressure cap (3), spherical nut (4), seal box (5), upper body (6), plug (7), last supporting positive cover (8), taper gland (9), thick cone-shaped sealed gland (10), thin cone-shaped sealed gland (11), middle supporting positive cover (12), upper gland packing (13), lower seal filler (14), following supporting positive cover (15), spherical lower contact (16), screw rod (17) is formed, it is characterized in that: following body (1) is threaded with pressure cap (3), screw rod (17) is inserted in the glue rod (2), screw rod (17) and pressure cap (3), spherical nut (4) is with following body (1) and is threaded, with the fastening spherical lower contact of spherical nut (4) (16), with middle supporting positive cover (12), upper gland packing (13), lower seal filler ((14)), after following supporting positive cover (15) is respectively charged in the spherical lower contact (16) and with seal box (5) it is compressed sealing, seal box (5) is threaded with spherical lower contact (16), set up universal ball joint in spherical lower contact (16) and following body (1) junction, to go up supporting positive cover (8), taper gland (9), thick cone-shaped sealed gland (10), thin awl row sealing shroud (11) is put into seal box (5) and is compressed sealing with upper body (6), upper body (6) is threaded with seal box (5), and plug (7) slides in upper body (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200153375U CN201110151Y (en) | 2007-10-18 | 2007-10-18 | Novel well head sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200153375U CN201110151Y (en) | 2007-10-18 | 2007-10-18 | Novel well head sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201110151Y true CN201110151Y (en) | 2008-09-03 |
Family
ID=39894681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200153375U Expired - Fee Related CN201110151Y (en) | 2007-10-18 | 2007-10-18 | Novel well head sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201110151Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101864917A (en) * | 2010-06-25 | 2010-10-20 | 辽宁中瑞科技有限公司 | Random and automatic regulating polished rod sealing device of oil pumping machine |
| CN102305043A (en) * | 2011-08-23 | 2012-01-04 | 哈尔滨中融信科技开发有限公司 | Novel polish rod sealer |
| CN105672930A (en) * | 2016-03-08 | 2016-06-15 | 宝鸡石油机械有限责任公司 | Casing pipe seal box capable of achieving automatic centring |
| CN108252674A (en) * | 2018-01-26 | 2018-07-06 | 克拉玛依胜利高原机械有限公司 | Left seal, right seal, split seal assembly and polish rod seal device |
-
2007
- 2007-10-18 CN CNU2007200153375U patent/CN201110151Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101864917A (en) * | 2010-06-25 | 2010-10-20 | 辽宁中瑞科技有限公司 | Random and automatic regulating polished rod sealing device of oil pumping machine |
| CN102305043A (en) * | 2011-08-23 | 2012-01-04 | 哈尔滨中融信科技开发有限公司 | Novel polish rod sealer |
| CN105672930A (en) * | 2016-03-08 | 2016-06-15 | 宝鸡石油机械有限责任公司 | Casing pipe seal box capable of achieving automatic centring |
| CN105672930B (en) * | 2016-03-08 | 2020-04-24 | 宝鸡石油机械有限责任公司 | Automatic centering sleeve sealing box |
| CN108252674A (en) * | 2018-01-26 | 2018-07-06 | 克拉玛依胜利高原机械有限公司 | Left seal, right seal, split seal assembly and polish rod seal device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |