CN201092839Y - Sealing strengthen device for oil pumping well head - Google Patents
Sealing strengthen device for oil pumping well head Download PDFInfo
- Publication number
- CN201092839Y CN201092839Y CNU2007200297738U CN200720029773U CN201092839Y CN 201092839 Y CN201092839 Y CN 201092839Y CN U2007200297738 U CNU2007200297738 U CN U2007200297738U CN 200720029773 U CN200720029773 U CN 200720029773U CN 201092839 Y CN201092839 Y CN 201092839Y
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- China
- Prior art keywords
- packing
- gland
- seal
- well head
- pressing sleeve
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model relates to a strengthening device for sealing of well heads of plumping wells, which comprises a pressing cap, a pressing sleeve, a bellmouthing, a packing and a sealed body, which is characterized in that the sealed body is designed as a cylindrical, wherein a male screw thread is arranged on the upper portion, a female screw thread is arranged on the lower portion, the upper portion, the middle portion and the inner portion are designed as packing cavities, the pressing cap which is mounted on the upper portion of the sealed body is connected with the male screw thread, the pressing sleeve is pressed on the inner portion of the pressing cap, a pulley motor strap packing is pressed under the pressing sleeve, the cone-head of the strap packing is towards the inward direction, the upper end of the pressing sleeve has a big diameter, and the lower end of the pressing sleeve has a small inner-diameter, and a bellmouthing which is provided with a small upper opening and a big lower opening is mounted on the small inner-diameter portion. The strengthening device has the advantages of rapidly removing and replacing the remained old packing, speedy, labor saving and time saving, and shortening the time of replacing the packing.
Description
One, technical field
The utility model relates to a kind of rod-pumped well well head sealing stiffening device.
Two, background technology
At present, the exploitation later stage has been arrived in some oil field, main oil production method is a mechanical oil recovery, the rod-pumped well of every mechanical oil recovery all exists the problem that well head is difficult to seal, the well head sealing is bad, causes well head oil or oil leakage phenomenon to occur spattering, production tree is put on deceive the clothing skirt or make the well site spread black carpet, bring heavy cleaning for the oil recovery workman, and cause crude oil to waste greatly.Although the technician has done a large amount of improvements, make the well head sealing performance that large increase arranged, but exist oil leakage phenomenon, main cause well head Seal Design structure and select the irrational problem of sealed packing material for use.
Three, summary of the invention
The purpose of this utility model provides a kind of rod-pumped well well head sealing stiffening device, and this device can be made secondary seal and use, and also can use separately, solves the poorly sealed problem of rod-pumped well well head that above-mentioned prior art exists.
The technical solution of the utility model realizes in the following manner:
The utility model is made up of pressure cap, gland, horn mouth, packing and seal, and it is cylindrical to it is characterized in that seal is made as, and top is provided with male thread, and the bottom is provided with box thread, and inside is made as the packing chamber in going up; Seal top is provided with the pressure cap that is connected with its male thread, is pressed with gland in the pressure cap, is pressed with motor pulley belt packing under the gland; Belt packing conehead is inside, and the gland upper end diameter is big, and bottom diameter is little, is provided with the big horn mouth of young end opening at the little position of internal diameter.
Compared with the prior art the utility model has the following advantages:
1, replace oil well rubber packing with waste and old motor belt, the belt abrasion resistance is good.The hardness height, the elasticity of compression is big, and the trapezoid space of belt stores lubricating grease, stands the release that force compresses can be orderly aborning, reduces mutual friction mutually between polished rod and the packing, prolongs the packing life cycle, improves the mechanical oil recovery rate.
2, can be rapidly will the old packing of residue take out and change, accomplish fast, time saving and energy saving, shortened the time of changing packing.
3, be made as horn mouth under the gland, drive the up resistance of packing when head of liquid and sucker rod are up in the oil pipe that is produced when sucker rod is up, act on the blue bottom of leather horn mouth, make packing top dwindle area tapering compression-expansion and form self-styledly, act on well head and sucker rod annular space and reach and do not ooze, do not leak, when sucker rod is descending, the drive packing is descending, head of liquid reduces in the pit shaft simultaneously, and well head frictional force reduces, but the packing of both hands rotation at this moment gland is regulated the well head sealing.
4, well head enhanced leaktightness device adopts and strengthens the blue and packing box endoporus of leather, improves the anti-big φ 6mm of inclined to one side abrasive resistance.
5, behind this well mouth sealing device of installation, not only can solve the unmanageable oil well of run, drip, leak of packing, and can effectively prolong packing application life, change a packing and can prolong twice service time than old packing, reach more than half a year to one year, reduced and stopped the well operating time, improved the mechanical oil recovery rate.
6, be installed in old-fashioned packing box top, operate not only convenient but also safety can also reduce the cost input.
Four, description of drawings
Accompanying drawing is a structural representation of the present utility model
1-pressure cap 2-gland 3-horn mouth 4-packing 5-seal among the figure
Five, the specific embodiment
For further disclosing the technical solution of the utility model, elaborate by embodiment below in conjunction with Figure of description:
As shown in drawings, the utility model is made up of pressure cap 1, gland 2, horn mouth 3, packing 4 and seal 5, as seen from the figure, pressure cap 1 lower thread and seal 5 top screw threads screw, there is gland 2 pressure cap 1 inside, gland 2 tops are not stretched in the seal 5, packing 4 is arranged in the seal 5, the inside and outside width of packing 4 cross sectional shapes does not wait, conehead is inside, and loudspeaker 3 are arranged at gland 2 bottoms, and internal thread is arranged at seal 5 bottoms, pressure cap 1 internal thread top connects with external screw thread on the seal 5, and rotary nut 1 can compress packing 4.
Adopt waste and old pumping-unit motor belt to do sealed packing 4, narrow outer wide in the cross sectional shape, easy deformation, the gap can store lubrication oil, and packing 4 is not easy wearing and tearing, long service life.Loudspeaker 3 are arranged at gland 2 bottoms, have self-styled function under pressure, and when fit sealing spare, the loudspeaker conical surface can impel seal distortion, have fastening easily, characteristics such as good airproof performance.Dismantle pressure cap 1 when changing packing 4, seal 5 is unloaded from the original packing box of well head, can easily packing 4 be disclosed from top to down, it is convenient, fast therefore to change packing 4.
Claims (1)
1. a rod-pumped well well head sealing stiffening device is made up of pressure cap, gland, horn mouth, packing and seal, and it is cylindrical to it is characterized in that seal is made as, and top is provided with male thread, and the bottom is provided with box thread, and inside is made as the packing chamber in going up; Seal top is provided with the pressure cap that is connected with its male thread, is pressed with gland in the pressure cap, is pressed with motor pulley belt packing under the gland; Belt packing conehead is inside, and the gland upper end diameter is big, and bottom diameter is little, is provided with the big horn mouth of young end opening at the little position of internal diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200297738U CN201092839Y (en) | 2007-11-09 | 2007-11-09 | Sealing strengthen device for oil pumping well head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200297738U CN201092839Y (en) | 2007-11-09 | 2007-11-09 | Sealing strengthen device for oil pumping well head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201092839Y true CN201092839Y (en) | 2008-07-30 |
Family
ID=39900804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200297738U Expired - Fee Related CN201092839Y (en) | 2007-11-09 | 2007-11-09 | Sealing strengthen device for oil pumping well head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201092839Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720457A (en) * | 2012-07-06 | 2012-10-10 | 常熟市石油固井工具有限公司 | Adjustable sucker rod sealing assembly |
| CN112647884A (en) * | 2021-01-07 | 2021-04-13 | 中国石油天然气股份有限公司 | Christmas tree wellhead sealing device |
-
2007
- 2007-11-09 CN CNU2007200297738U patent/CN201092839Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720457A (en) * | 2012-07-06 | 2012-10-10 | 常熟市石油固井工具有限公司 | Adjustable sucker rod sealing assembly |
| CN112647884A (en) * | 2021-01-07 | 2021-04-13 | 中国石油天然气股份有限公司 | Christmas tree wellhead sealing 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 |