CN104179472A - Polished rod sealing device for production well - Google Patents
Polished rod sealing device for production well Download PDFInfo
- Publication number
- CN104179472A CN104179472A CN201410406495.8A CN201410406495A CN104179472A CN 104179472 A CN104179472 A CN 104179472A CN 201410406495 A CN201410406495 A CN 201410406495A CN 104179472 A CN104179472 A CN 104179472A
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- China
- Prior art keywords
- packing
- polished rod
- pressure cap
- oil
- seal device
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- Pressure Vessels And Lids Thereof (AREA)
Abstract
The invention discloses a polished rod sealing device for a production well. The polished rod sealing device comprises a packing, a packing cover, a nut and a gland; the packing sleeves a polished rod; the packing cover sleeves the packing; the nut fixedly connected with the upper portion of the packing cover sleeves the polished rod; the gland abutted to both the nut and the packing sleeves the polished rod. An oil storage cavity forms among the nut, the gland and the packing cover. The nut is further provided with an oil incoming hole communicated with the oil storage cavity. A guide passage forms between the gland and the polished rod. The nut is provided with an oil hole whereby the oil storage cavity is communicated with the guide passage. The polished rod sealing device allows the polished rod and the packing to be continuously lubricated without machine halt, dry friction between the polished rod and the packing is avoided, the packing is kept be in a good operating mode constantly, productivity of an oil well is improved, service life of the packing is prolonged, and waste of the packing is avoided.
Description
Technical field
The present invention relates to the extracting device of oil that a kind of oil field shaft mouth is used, especially also related to the polish rod seal device that a kind of producing well is used.
Background technology
On the top of the well head in oil field, generally all need to use polish rod seal device so that polished rod is sealed.And the quality of polish rod seal device, directly impact is recovered the oil and is produced.
Shown in Fig. 1, gland 5 that polish rod seal device of the prior art comprises the packing 2 that is set on polished rod 1, be set in packing lid 3 on packing 2, be set in pressure cap 4 on packing lid 3, connect with packing 2 and pressure cap 4 respectively, be arranged on the handle 6 on pressure cap 4.Adopt the polish rod seal device of this kind of structure not there is lubricating function.Therefore in order to ensure the lubricated operation that can only stop oil pumper between polished rod and packing, coating lubricating oil fat on the polished rod at polish rod seal device place frequently.But do so not only time-consuming taking a lot of work, and lubricated poor effect.Lubricant grease cannot reach the position that packing is combined with polished rod, thereby causes polished rod and packing to produce direct friction under the situation that lacks lubricant grease, causes packing to damage frequent, and then affects oil well production.
Summary of the invention
In order to overcome the above-mentioned defect of prior art, technical problem to be solved by this invention has been to provide a kind of polish rod seal device, the application life that it can ensure the normal production of oil well and extend packing.
Concrete technical scheme of the present invention is:
The polish rod seal device that a kind of producing well is used, it comprises the packing being set on polished rod, be set in the packing lid on described packing, the pressure cap that is set on polished rod and is connected mutually with the top of described packing lid, the gland that is set on polished rod and connects with described pressure cap and described packing respectively, described pressure cap, between described gland and described packing lid, form an oil storage tank, on described pressure cap, also offer one be connected with this oil storage tank enter oilhole, between described gland and described polished rod, form a flow-guiding channel, on described pressure cap, offer the oil-through hole for described oil storage tank is connected with described flow-guiding channel.
Preferably, described oil-through hole is eight, and described eight oil-through holes are evenly arranged around the axis of polished rod.
Preferably, described polish rod seal device also comprises the handle being installed on described pressure cap, and the outer rim on described handle is provided with pump nozzle, offers for by the pipeline being connected between described pump nozzle and described oil storage tank on described pressure cap.
Preferably, described polish rod seal device also comprises the seal being arranged between described polished rod and described pressure cap, and described seal is positioned at the top of described pressure cap.
Preferably, described seal comprises malthoid or dust-proof seal ring.
Preferably, described pressure cap comprises interconnective First and second from top to bottom successively, the external diameter that the external diameter of described First is greater than described second, and described oil storage tank is arranged in described First.
Preferably, described pressure cap is threaded mutually with described packing lid, and the outer wall of described gland is close to mutually with the inwall of described packing lid.
Preferably, described oil-through hole lower than described enter oilhole.
Preferably, the extension that described packing lid stretches into towards the groove of described pressure cap, described extension exceeds packing.
Polish rod seal device in the present invention is under non-stop-machine state; also can be constantly to being lubricated between polished rod and packing; guarantee that polished rod and packing can not produce dry friction; also make packing always in duty preferably simultaneously; improve the production efficiency of oil well; extend the working life of packing, avoided the waste of packing.
Brief description of the drawings
Accompanying drawing described here is only for task of explanation, and is not intended to limit by any way scope disclosed by the invention.In addition, shape and the proportional sizes etc. of the each parts in figure is only schematically, for helping the understanding of the present invention, is not shape and the proportional sizes that specifically limits the each parts of the present invention.Those skilled in the art, under instruction of the present invention, can select various possible shapes and proportional sizes to implement the present invention as the case may be.
Fig. 1 has shown the structural representation of polish rod seal device of the prior art.
Fig. 2 has shown the structural representation of polish rod seal device in the present invention.
The Reference numeral of above accompanying drawing: 1, polished rod; 2, packing; 3, packing lid; 4, pressure cap; 5, gland; 6, handle; 7, oil storage tank; 8, enter oilhole; 9, oil-through hole; 10, flow-guiding channel; 11, pipeline; 12, pump nozzle; 13, seal; 14, First; 15, second; 16, extension.
Detailed description of the invention
With the description of the specific embodiment of the invention, can more be well understood to details of the present invention by reference to the accompanying drawings.But the specific embodiment of the present invention described here,, for explaining object of the present invention, is only limitation of the present invention and can not be understood as by any way.Under instruction of the present invention, technician can conceive based on possible distortion arbitrarily of the present invention, and these all should be regarded as belonging to scope of the present invention.
Shown in Fig. 2, polished rod 1 sealing device that in the present invention, producing well is used, pressure cap 4 that it comprises the packing 2 that is set on polished rod 1, be set in packing lid 3 on described packing 2, be set on polished rod 1 and be connected mutually with the top of described packing lid 3, the gland 5 that is set on polished rod 1 and connects with described pressure cap 4 and described packing 2 respectively.
In the present embodiment, packing lid 3, pressure cap 4, gland 5 can be the cylindrical body around the axis centre symmetry of polished rod 1.Pressure cap 4 comprises interconnective First 14 and second 15, the external diameter that the external diameter of described First 14 is greater than described second 15 from top to bottom successively.On pressure cap 4, can offer a groove that Open Side Down, this groove can be through to second 15 of pressure cap 4 from the First of pressure cap 4 14.Packing lid 3 stretches in the groove of pressure cap 4, and can second 15 with pressure cap 4 be connected by screw thread.Packing 2 is arranged between packing lid 3 and polished rod 1, to realize the sealing of packing 2 and polished rod 1.Gland 5 is placed in the groove of pressure cap 4, and the First 14 of the top of gland 5 and pressure cap 4 connects, and the top of the bottom of gland 5 and packing 2 connects.
Between described pressure cap 4, described packing lid 3 and described gland 5, form an oil storage tank 7.On described pressure cap 4, also offer one be connected with this oil storage tank 7 enter oilhole 8, between described gland 5 and described polished rod 1, form a flow-guiding channel 10, on described pressure cap 4, offer the oil-through hole 9 for described oil storage tank 7 is connected with described flow-guiding channel 10.
Oil storage tank 7 is formed jointly by inwall, the outer wall of gland 5 and the upper surface of packing lid 3 of pressure cap 4, and oil storage tank 7 can be a part for the groove of pressure cap 4.The flow-guiding channel 10 forming between gland 5 and polished rod 1 is formed by the outer wall of polished rod 1 and the inwall of gland 5, and this flow-guiding channel 10 ringwise.When oil storage tank 7 is ringwise time, oil-through hole 9 can be multiple, and multiple oil-through holes 9 can evenly be arranged around the axis of polished rod 1.The position of oil-through hole 9 can be lower than entering oilhole 8, and to make not from entering the situation that oilhole 8 overflows, lubricant grease can also be derived from oil-through hole 9.In the present embodiment, oil-through hole 9 is that eight axis around polished rod 1 are evenly arranged on gland 5.
In the present embodiment, can be for storage lubricant grease in oil storage tank 7.Lubricant grease in oil storage tank 7 can import from entering oilhole 8, and from oil outlet, enters in flow-guiding channel 10.Lubricant grease in flow-guiding channel 10 can be constantly to infiltration between packing 2 and polished rod 1.
Therefore polished rod 1 sealing device in present embodiment is under non-stop-machine state; also can be constantly to being lubricated between polished rod 1 and packing 2; guarantee that polished rod 1 and packing 2 can not produce dry friction; also make packing 2 always in duty preferably simultaneously; improve the production efficiency of oil well; extend the working life of packing 2, avoided the waste of packing 2.
One preferred embodiment in, polished rod 1 sealing device also comprises the handle 6 being installed on described pressure cap 4, outer rim on described handle 6 is provided with pump nozzle 12, offers for by the pipeline 11 being connected between described pump nozzle 12 and described oil storage tank 7 on described pressure cap 4.In the present embodiment, the setting of handle 6 can so that fastening, in the time that needs refuel to oil storage tank 7, can be opened pump nozzle 12, and lubricant grease is imported oilhole 8 from pump nozzle 12 and by pipeline 11.
One preferred embodiment in, described polished rod 1 sealing device also comprises the seal 13 being arranged between described polished rod 1 and described pressure cap 4, described seal 13 is positioned at the top of described pressure cap 4.Described seal 13 can be malthoid or dust-proof seal ring.Seal 13 can improve the seal degree of this polished rod 1 sealing device, can also guarantee that the lubricant grease that enters flow-guiding channel 10 can not overflow between polished rod 1 and pressure cap 4.
One preferred embodiment in, described pressure cap 4 is threaded mutually with described packing lid 3, the outer wall of described gland 5 is close to mutually with the inwall of described packing lid 3.Adopt this kind of structure, the lubricant grease in oil storage tank 7 just can be between packing lid 3 and pressure cap 4, do not overflow between packing lid 3 and gland 5, thereby improved the seal degree of this polished rod 1 sealing device.
One preferred embodiment in, the extension 16 that described packing lid 3 stretches into towards the groove of described pressure cap 4, described extension 16 exceeds packing 2.Adopt this kind of structure, the lubricant grease that is arranged in oil storage tank 7 just can not overflow from packing lid 3 and packing 2, thereby has improved the seal degree of this polished rod 1 sealing device.
Each embodiment in this manual all adopts the mode of going forward one by one to describe, and what each embodiment stressed is and the difference of other embodiment, between each embodiment identical similar part mutually referring to.
Above-described embodiment is only explanation technical conceive of the present invention and feature, and its object is to allow person skilled in the art can understand content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences that Spirit Essence is done according to the present invention change or modify, within all should being encompassed in protection scope of the present invention.
Claims (9)
1. the polish rod seal device that producing well is used, it comprises the packing being set on polished rod, be set in the packing lid on described packing, the pressure cap that is set on polished rod and is connected mutually with the top of described packing lid, the gland that is set on polished rod and connects with described pressure cap and described packing respectively, it is characterized in that: described pressure cap, between described gland and described packing lid, form an oil storage tank, on described pressure cap, also offer one be connected with this oil storage tank enter oilhole, between described gland and described polished rod, form a flow-guiding channel, on described pressure cap, offer the oil-through hole for described oil storage tank is connected with described flow-guiding channel.
2. the polish rod seal device that producing well according to claim 1 is used, is characterized in that: described oil-through hole is eight, and described eight oil-through holes are evenly arranged around the axis of polished rod.
3. the polish rod seal device that producing well according to claim 1 is used, it is characterized in that: described polish rod seal device also comprises the handle being installed on described pressure cap, outer rim on described handle is provided with pump nozzle, offers for by the pipeline being connected between described pump nozzle and described oil storage tank on described pressure cap.
4. the polish rod seal device that producing well according to claim 1 is used, is characterized in that: described polish rod seal device also comprises the seal being arranged between described polished rod and described pressure cap, and described seal is positioned at the top of described pressure cap.
5. the polish rod seal device that producing well according to claim 4 is used, is characterized in that: described seal comprises malthoid or dust-proof seal ring.
6. the polish rod seal device that producing well according to claim 4 is used, it is characterized in that: described pressure cap comprises interconnective First and second from top to bottom successively, the external diameter that the external diameter of described First is greater than described second, described oil storage tank is arranged in described First.
7. the polish rod seal device that producing well according to claim 1 is used, is characterized in that: described pressure cap is threaded mutually with described packing lid, and the outer wall of described gland is close to mutually with the inwall of described packing lid.
8. the polish rod seal device that producing well according to claim 1 is used, is characterized in that: described oil-through hole lower than described enter oilhole.
9. the polish rod seal device that producing well according to claim 1 is used, is characterized in that: the extension that described packing lid stretches into towards the groove of described pressure cap, described extension exceeds described packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410406495.8A CN104179472A (en) | 2014-08-18 | 2014-08-18 | Polished rod sealing device for production well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410406495.8A CN104179472A (en) | 2014-08-18 | 2014-08-18 | Polished rod sealing device for production well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104179472A true CN104179472A (en) | 2014-12-03 |
Family
ID=51960786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410406495.8A Pending CN104179472A (en) | 2014-08-18 | 2014-08-18 | Polished rod sealing device for production well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104179472A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107956447A (en) * | 2017-09-19 | 2018-04-24 | 宁彩红 | A kind of infiltrative type polish rod seal device |
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| CN2660102Y (en) * | 2003-12-03 | 2004-12-01 | 张传新 | Improved wellhead sealing structure for polished rod of beam unit |
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| CN202467745U (en) * | 2012-03-23 | 2012-10-03 | 中国石油天然气股份有限公司 | Lubricating and sealing device for polished rod of pumping well |
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| CN202882828U (en) * | 2012-10-25 | 2013-04-17 | 中国石油化工股份有限公司 | Double-layer omni-directional adjustable well opening device of heavy oil well |
| RU128653U1 (en) * | 2011-10-10 | 2013-05-27 | Общество с ограниченной ответственностью "Георесурс" | GEOPHYSICAL LUBRICATOR |
| CN204040981U (en) * | 2014-08-18 | 2014-12-24 | 中国石油天然气股份有限公司 | The polish rod seal device of producing well |
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2014
- 2014-08-18 CN CN201410406495.8A patent/CN104179472A/en active Pending
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2522613Y (en) * | 2001-11-01 | 2002-11-27 | 马季元 | Dynamic rubber-filling packing box for pumping unit |
| CN2660102Y (en) * | 2003-12-03 | 2004-12-01 | 张传新 | Improved wellhead sealing structure for polished rod of beam unit |
| CN2732988Y (en) * | 2004-09-25 | 2005-10-12 | 中国石化胜利油田有限公司孤岛采油厂 | Oil filled self-lubricating packing box |
| CN201193494Y (en) * | 2008-02-03 | 2009-02-11 | 大庆油田有限责任公司 | Energy-conserving type oil lubrication packing kit |
| CN201301680Y (en) * | 2008-12-06 | 2009-09-02 | 赵久玲 | Polish rod oil ejector for oil pumping well |
| CN201437700U (en) * | 2009-07-04 | 2010-04-14 | 大庆油田有限责任公司 | Oil extractor feed-rod lubricating device |
| CN202000946U (en) * | 2011-03-16 | 2011-10-05 | 中国石油天然气股份有限公司 | Novel wellhead double-seal box |
| CN202132010U (en) * | 2011-06-29 | 2012-02-01 | 中国石油化工股份有限公司胜利油田分公司孤东采油厂 | Bearing type self-lubricating sealer for polish rod |
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| CN202467745U (en) * | 2012-03-23 | 2012-10-03 | 中国石油天然气股份有限公司 | Lubricating and sealing device for polished rod of pumping well |
| CN202706973U (en) * | 2012-05-30 | 2013-01-30 | 张新民 | Long-acting energy-saving packing box |
| CN202560148U (en) * | 2012-06-01 | 2012-11-28 | 胡延军 | Energy-saving lubricating device for oil pumping unit polish rod |
| CN202832349U (en) * | 2012-10-25 | 2013-03-27 | 中国石油化工股份有限公司 | Stuffing box |
| CN202882828U (en) * | 2012-10-25 | 2013-04-17 | 中国石油化工股份有限公司 | Double-layer omni-directional adjustable well opening device of heavy oil well |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107956447A (en) * | 2017-09-19 | 2018-04-24 | 宁彩红 | A kind of infiltrative type polish rod seal device |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141203 |
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| RJ01 | Rejection of invention patent application after publication |