CN204040986U - Double-strand chain piston rod sealer for pumping oil - Google Patents
Double-strand chain piston rod sealer for pumping oil Download PDFInfo
- Publication number
- CN204040986U CN204040986U CN201420512412.9U CN201420512412U CN204040986U CN 204040986 U CN204040986 U CN 204040986U CN 201420512412 U CN201420512412 U CN 201420512412U CN 204040986 U CN204040986 U CN 204040986U
- Authority
- CN
- China
- Prior art keywords
- packing box
- double
- piston rod
- pumping oil
- strand chain
- 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.)
- Withdrawn - After Issue
Links
- 238000005086 pumping Methods 0.000 title claims abstract description 13
- 238000012856 packing Methods 0.000 claims abstract description 41
- 210000004907 gland Anatomy 0.000 claims abstract description 15
- 238000007789 sealing Methods 0.000 claims description 16
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 239000004519 grease Substances 0.000 description 5
- 230000001050 lubricating effect Effects 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 235000014121 butter Nutrition 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
Landscapes
- Sealing Devices (AREA)
Abstract
The utility model relates to a kind of double-strand chain piston rod sealer for pumping oil, comprises packing box, is lower sphere bottom packing box, in packing box, gland one, multiple packing and dottle pin is housed from top to bottom successively; Described packing box top connects upper sphere by union housing, and upper sphere top is fixed by upper press cover.The utility model also add auto-compensation hold-down mechanism.The utility model tuningout yardstick is large, effective, and changes the present situation of hand Screw packing box pressing cap, easy to maintenance, saves manpower.
Description
Technical field
The utility model belongs to oilfield machinery field, relates to a kind of well mouth sealing device, particularly a kind of double-strand chain piston rod sealer for pumping oil.
Background technology
Traditional oil pumping well head sealing device, owing to only there is a spinning ball, so its bias adjusting function is relatively poor, and dependence hand Screw packing box pressing cap, extruding rubber seal packing are out of shape thus realize polished rod seal.This mode is difficult to the eccentric wear eliminating rubber seal packing, so its application life is short, sealing effectiveness is poor, and needs frequent hand Screw packing box pressing cap, very inconvenient.In order to reach the object reducing packing replacing number of times, clean, environmental protection, therefore researching and developing a kind of sealed packing long service life, Novel well head sealing device simple to operate, easy to maintenance is very necessary.
Summary of the invention
The purpose of this utility model is to provide a kind of double-strand chain piston rod sealer for pumping oil, overcomes existing well mouth sealing device bias adjusting function poor, and often needs hand Screw packing box pressing cap, extruding rubber seal packing distortion thus realize the problem of polished rod seal.
The utility model is achieved through the following technical solutions: a kind of double-strand chain piston rod sealer for pumping oil, comprises packing box, is lower sphere bottom packing box, in packing box, gland one, multiple packing and dottle pin is housed from top to bottom successively; Described packing box top connects upper sphere by union housing, and upper sphere top is fixed by upper press cover.
Further, described upper sphere top is stretched out rear inside from upper press cover and is also provided with auto-compensation hold-down mechanism, comprise rubber grain addition room, gland two and adjustment cap, wherein, filled rubber particle in rubber grain addition room, gland two is contained in the top of rubber grain addition room, and adjustment cap is equipped with again at the top of gland two.
Further, described auto-compensation hold-down mechanism also comprises adjustment spring and spring base, and adjustment spring longitudinally arranges and is positioned at the bottom of rubber grain addition room, and adjustment spring is contained in spring base.
Further, the sidewall of described upper sphere has injection hole.
Further, the chondritic of described upper sphere is equipped with upper seal support and bottom sealing socket up and down respectively.
Adopt the good effect of technique scheme: the utility model has the following advantages:
1, adopt two spheroid tuningout, tuningout yardstick is large, effective;
2, owing to adding auto-compensation hold-down mechanism, the present situation of hand Screw packing box pressing cap is changed, easy to maintenance, save manpower;
3, adopt Dynamic injection Special seal, reparation, lubricating grease, greatly can extend the application life of packing, safety, clean, environmental protection.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is using state schematic diagram of the present utility model.
In figure, 1 packing box, 2 lower spheres, 3 gland one, 4 packings, 5 dottle pins, 6 union housings, 7 upper spheres, 8 upper press covers, 9 rubber grain addition room, 10 glands two, 11 adjust cap, 12 adjustment springs, 13 spring bases, 14 injection holes, 15 upper seal supports, 16 bottom sealing sockets, 17 blowout preventers, 18 ball seats.
Detailed description of the invention
Below in conjunction with accompanying drawing, the technical solution of the utility model is described further, but should not be construed as restriction of the present utility model:
Fig. 1 is structural representation of the present utility model, Fig. 2 is using state schematic diagram of the present utility model, shown in composition graphs 1, Fig. 2, a kind of double-strand chain piston rod sealer for pumping oil, comprise packing box 1, be lower sphere 2 bottom packing box 1, in packing box 1, gland 1, multiple packing 4 and dottle pin 5 be housed from top to bottom successively.In field produces, the lower sphere of this device is arranged in the ball seat 18 on blowout preventer 17, carries out realizing active sealing by packing to oil-extractor polish-rod.Described packing box 1 top connects upper sphere 7 by union housing 6, and upper sphere 7 top is fixed by upper press cover 8.Owing to adding upper sphere, therefore carry out tuningout by upper lower sphere synergy, deflection-regulating range increases greatly, decreases the wearing and tearing to packing, greatly the application life of extension fixture.
In order to the number of times of artificial tight packing can be reduced, described upper sphere 7 top is stretched out rear inside from upper press cover 8 and is also provided with auto-compensation hold-down mechanism, comprise rubber grain addition room 9, gland 2 10 and adjustment cap 11, wherein, filled rubber particle in rubber grain addition room 9, gland 2 10 is contained in the top of rubber grain addition room 9, and adjustment cap 11 is equipped with again at the top of gland 2 10.Carry out auxiliary seal by having certain flexible rubber grain, when adding a rubber grain every month in upper sphere, shut down after, open adjustment cap, upper pressure-raising cover two after, directly rubber grain is added in upper sphere.
Because the elastic force of rubber grain is limited after all, after wearing and tearing, application life will shorten greatly, therefore described auto-compensation hold-down mechanism also comprises adjustment spring 12 and spring base 13, and adjustment spring 12 longitudinally arranges and is positioned at the bottom of rubber grain addition room 9, and adjustment spring 12 is contained in spring base 13.The elastic force adjusting range of adjustment spring is very large, is extruded, therefore can compensate the wearing and tearing of rubber grain, reduce the replacing number of times of rubber grain by adjustment spring to rubber grain.
Further, the sidewall of described upper sphere 7 has injection hole 14, grease gun therefore can be utilized to be injected in upper sphere by injection hole by special sealing, lubricating grease, reduce sealed packing wearing and tearing and ensure that its sealing effectiveness.Actual when using, every two weeks utilizes special butter rifle special sealing, lubricating grease to be injected in upper sphere once by injection hole.
In order to better strengthen sealing effectiveness, prevent seepage, the chondritic of described upper sphere 7 is equipped with upper seal support 15 and bottom sealing socket 16 up and down respectively.
When needing replacing compression sealed packing once every half a year, after shutdown, after first closing flashboard type blowout preventer, sealing polished rod, can implement to change to the packing in lower sphere.The auxiliary seal that this device adopts Dynamic injection sealing, lubricating grease and auto-compensation to compress rubber grain substantially prolongs the application life of compression sealed packing, has saved manpower and the time of packing replacing, safety, clean, environmental protection.
Claims (5)
1. a double-strand chain piston rod sealer for pumping oil, comprise packing box (1), packing box (1) bottom is lower sphere (2), gland one (3), multiple packing (4) and dottle pin (5) are housed in packing box (1) from top to bottom successively, it is characterized in that: described packing box (1) top connects upper sphere (7) by union housing (6), upper sphere (7) top is fixed by upper press cover (8).
2. double-strand chain piston rod sealer for pumping oil according to claim 1, it is characterized in that: described upper sphere (7) top is stretched out rear inside from upper press cover (8) and is also provided with auto-compensation hold-down mechanism, comprise rubber grain addition room (9), gland two (10) and adjustment cap (11), wherein, filled rubber particle in rubber grain addition room (9), gland two (10) is contained in the top of rubber grain addition room (9), and adjustment cap (11) is equipped with again at the top of gland two (10).
3. double-strand chain piston rod sealer for pumping oil according to claim 2, it is characterized in that: described auto-compensation hold-down mechanism also comprises adjustment spring (12) and spring base (13), adjustment spring (12) longitudinally arranges and is positioned at the bottom of rubber grain addition room (9), and adjustment spring (12) is contained in spring base (13).
4. double-strand chain piston rod sealer for pumping oil according to claim 1, is characterized in that: the sidewall of described upper sphere (7) has injection hole (14).
5. double-strand chain piston rod sealer for pumping oil according to claim 1, is characterized in that: the chondritic of described upper sphere (7) is equipped with upper seal support (15) and bottom sealing socket (16) up and down respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420512412.9U CN204040986U (en) | 2014-09-09 | 2014-09-09 | Double-strand chain piston rod sealer for pumping oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420512412.9U CN204040986U (en) | 2014-09-09 | 2014-09-09 | Double-strand chain piston rod sealer for pumping oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204040986U true CN204040986U (en) | 2014-12-24 |
Family
ID=52241664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420512412.9U Withdrawn - After Issue CN204040986U (en) | 2014-09-09 | 2014-09-09 | Double-strand chain piston rod sealer for pumping oil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204040986U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105019851A (en) * | 2015-08-10 | 2015-11-04 | 刘翠萍 | Colloidal particle compensation oil-pumping polished rod sealer |
| CN106194096A (en) * | 2016-08-04 | 2016-12-07 | 中国石油大学(华东) | A kind of offshore platform has the compound wellhead assembly of bar oil recovery |
| CN111594086A (en) * | 2020-05-28 | 2020-08-28 | 延长油田股份有限公司定边采油厂 | Multi-section universal sealer for oil well head |
-
2014
- 2014-09-09 CN CN201420512412.9U patent/CN204040986U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105019851A (en) * | 2015-08-10 | 2015-11-04 | 刘翠萍 | Colloidal particle compensation oil-pumping polished rod sealer |
| CN106194096A (en) * | 2016-08-04 | 2016-12-07 | 中国石油大学(华东) | A kind of offshore platform has the compound wellhead assembly of bar oil recovery |
| CN111594086A (en) * | 2020-05-28 | 2020-08-28 | 延长油田股份有限公司定边采油厂 | Multi-section universal sealer for oil well head |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141224 Effective date of abandoning: 20180306 |
|
| AV01 | Patent right actively abandoned |