CN204040981U - The polish rod seal device of producing well - Google Patents
The polish rod seal device of producing well Download PDFInfo
- Publication number
- CN204040981U CN204040981U CN201420466907.2U CN201420466907U CN204040981U CN 204040981 U CN204040981 U CN 204040981U CN 201420466907 U CN201420466907 U CN 201420466907U CN 204040981 U CN204040981 U CN 204040981U
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- China
- Prior art keywords
- packing
- pressure cap
- seal device
- polished rod
- polish rod
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Abstract
The utility model discloses a kind of polish rod seal device of producing well, it comprises the packing be set on polished rod, be set in the packing lid on packing, to be set on polished rod and the pressure cap be connected mutually with the top of packing lid, to be set on polished rod and the gland abutted against with pressure cap and described packing respectively, described pressure cap, an oil storage tank is formed between described gland and described packing lid, described pressure cap also offers one be connected with this oil storage tank enter oilhole, a flow-guiding channel is formed between described gland and described polished rod, described pressure cap offers the oil-through hole for being connected with described flow-guiding channel by described oil storage tank.Polish rod seal device in the utility model is under non-stop-machine state; also can constantly lubricate between polished rod and packing; guarantee that polished rod and packing can not produce dry friction; also make packing be in preferably duty simultaneously always; improve the production efficiency of oil well; extend the working life of packing, avoid the waste of packing.
Description
Technical field
The utility model relate to a kind of extracting device of oil of oil field shaft mouth, especially also relates to a kind of polish rod seal device of producing well.
Background technology
On the top of the well head in oil field, generally all need to use polish rod seal device to seal polished rod.And the quality of polish rod seal device, directly impact is recovered the oil and is produced.
With reference to shown in Fig. 1, polish rod seal device of the prior art comprises the packing 2 be set on polished rod 1, the packing lid 3 be set on packing 2, the pressure cap 4 be set on packing lid 3, the gland 5 abutted against with packing 2 and pressure cap 4 respectively, the handle 6 be arranged on pressure cap 4.The polish rod seal device of this kind of structure is adopted not have lubricating function.Therefore the lubrication in order to ensure between polished rod and packing can only stop the operation of oil pumper, coating lubricating oil fat on the polished rod at polish rod seal device place frequently.But do not only time-consuming taking a lot of work like this, and the poor effect of lubrication.Lubricant grease cannot reach the position that packing is combined with polished rod, thus causes polished rod and packing to produce direct friction when lacking lubricant grease, causes packing to damage frequent, and then affects oil well production.
Utility model content
In order to overcome the above-mentioned defect of prior art, technical problem to be solved in the utility model there is provided a kind of polish rod seal device, and it can ensure the normal production of oil well and extend application life of packing.
Concrete technical scheme of the present utility model is:
A kind of polish rod seal device of producing well, it comprises the packing be set on polished rod, be set in the packing lid on described packing, to be set on polished rod and the pressure cap be connected mutually with the top of described packing lid, to be set on polished rod and the gland abutted against with described pressure cap and described packing respectively, described pressure cap, an oil storage tank is formed between described gland and described packing lid, described pressure cap also offers one be connected with this oil storage tank enter oilhole, a flow-guiding channel is formed between described gland and described polished rod, described pressure cap offers the oil-through hole for being connected with described flow-guiding channel by described oil storage tank.
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 be installed on described pressure cap, and the outer rim on described handle is provided with pump nozzle, described pressure cap offers the pipeline for being connected between described pump nozzle with described oil storage tank.
Preferably, described polish rod seal device also comprises the seal be 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 utility model is under non-stop-machine state; also can constantly lubricate between polished rod and packing; guarantee that polished rod and packing can not produce dry friction; also make packing be in preferably duty simultaneously always; improve the production efficiency of oil well; extend the working life of packing, avoid the waste of packing.
Accompanying drawing explanation
Accompanying drawing described here only for task of explanation, and is not intended to limit the utility model scope of disclosure by any way.In addition, the shape of each parts in figure and proportional sizes etc. are only schematic, for helping understanding of the present utility model, are not the shape and the proportional sizes that specifically limit each parts of the utility model.Those skilled in the art, under instruction of the present utility model, can select various possible shape and proportional sizes to implement the utility model as the case may be.
Fig. 1 shows the structural representation of polish rod seal device of the prior art.
Fig. 2 shows the structural representation of polish rod seal device in the utility model.
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, oilhole is entered; 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
By reference to the accompanying drawings with the description of the utility model detailed description of the invention, can clearly understand details of the present utility model.But detailed description of the invention of the present utility model described here, only for explaining the purpose of this utility model, and can not to be understood as by any way be to restriction of the present utility model.Under instruction of the present utility model, technician can conceive based on distortion possible arbitrarily of the present utility model, and these all should be regarded as belonging to scope of the present utility model.
With reference to shown in Fig. 2, polished rod 1 sealing device of producing well in the utility model, it comprises the packing 2 be set on polished rod 1, the packing lid 3 be set on described packing 2, be set on polished rod 1 and the pressure cap 4 be connected mutually with the top of described packing lid 3, be set on polished rod 1 and the gland 5 abutted against 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 of the axis centre symmetry around polished rod 1.Pressure cap 4 comprises interconnective first 14 and second 15 from top to bottom successively, the external diameter that the external diameter of described first 14 is greater than described second 15.Pressure cap 4 can be offered a groove that Open Side Down, this groove can be through to second 15 of pressure cap 4 from first of pressure cap 4 14.Packing lid 3 stretches in the groove of pressure cap 4, and can be connected by second 15 with pressure cap 4, 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 top of gland 5 and first 14 of pressure cap 4 abut against, and the bottom of gland 5 and the top of packing 2 abut against.
An oil storage tank 7 is formed between described pressure cap 4, described packing lid 3 and described gland 5.Described pressure cap 4 also offers one be connected with this oil storage tank 7 enter oilhole 8, between described gland 5 and described polished rod 1, forming a flow-guiding channel 10, described pressure cap 4 offering the oil-through hole 9 for being connected with described flow-guiding channel 10 by described oil storage tank 7.
Oil storage tank 7 is formed jointly by the upper surface of the inwall of pressure cap 4, the outer wall of gland 5 and packing lid 3, and namely oil storage tank 7 can be a part for the groove of pressure cap 4.The flow-guiding channel 10 formed between gland 5 and polished rod 1 is formed by the outer wall of polished rod 1 and the inwall of gland 5, and namely this flow-guiding channel 10 ringwise.When oil storage tank 7 ringwise time, oil-through hole 9 can be multiple, and multiple oil-through hole 9 evenly can be arranged around the axis of polished rod 1.The position of oil-through hole 9 can lower than entering oilhole 8, with make not from enter oilhole 8 overflow, 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, may be used in oil storage tank 7 storing lubricant grease.Lubricant grease in oil storage tank 7 can import from entering oilhole 8, and enters from oil outlet in flow-guiding channel 10.Lubricant grease in flow-guiding channel 10 can constantly permeate between packing 2 and polished rod 1.
Therefore polished rod 1 sealing device in present embodiment is under non-stop-machine state; also can constantly lubricate between polished rod 1 and packing 2; guarantee that polished rod 1 and packing 2 can not produce dry friction; also make packing 2 be in preferably duty simultaneously always; improve the production efficiency of oil well; extend the working life of packing 2, avoid the waste of packing 2.
In one preferred embodiment, polished rod 1 sealing device also comprises the handle 6 be installed on described pressure cap 4, outer rim on described handle 6 is provided with pump nozzle 12, described pressure cap 4 offers the pipeline 11 for being connected between described pump nozzle 12 with described oil storage tank 7.In the present embodiment, the setting of handle 6 so that fastening, when needs refuel to oil storage tank 7, can open pump nozzle 12, is imported oilhole 8 by lubricant grease from pump nozzle 12 by pipeline 11.
In one preferred embodiment, described polished rod 1 sealing device also comprises the seal 13 be arranged between described polished rod 1 and described pressure cap 4, and 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 entering flow-guiding channel 10 can not overflow between polished rod 1 and pressure cap 4.
In one preferred embodiment, described pressure cap 4 is threaded mutually with described packing lid 3, and 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 would not overflow between packing lid 3 and pressure cap 4, between packing lid 3 and gland 5, thus improves the seal degree of this polished rod 1 sealing device.
In one preferred embodiment, 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 being arranged in oil storage tank 7 would not overflow from packing lid 3 and packing 2, thus improves 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 the difference with other embodiments, between each embodiment identical similar part mutually see.
Above-described embodiment, only for technical conceive of the present utility model and feature are described, its object is to person skilled in the art can be understood content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All equivalences done according to the utility model Spirit Essence change or modify, and all should be encompassed within protection domain of the present utility model.
Claims (9)
1. the polish rod seal device of a producing well, it comprises the packing be set on polished rod, be set in the packing lid on described packing, to be set on polished rod and the pressure cap be connected mutually with the top of described packing lid, to be set on polished rod and the gland abutted against with described pressure cap and described packing respectively, it is characterized in that: described pressure cap, an oil storage tank is formed between described gland and described packing lid, described pressure cap also offers one be connected with this oil storage tank enter oilhole, a flow-guiding channel is formed between described gland and described polished rod, described pressure cap offers the oil-through hole for being connected with described flow-guiding channel by described oil storage tank.
2. the polish rod seal device of producing well according to claim 1, 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 of producing well according to claim 1, it is characterized in that: described polish rod seal device also comprises the handle be installed on described pressure cap, outer rim on described handle is provided with pump nozzle, described pressure cap offers the pipeline for being connected between described pump nozzle with described oil storage tank.
4. the polish rod seal device of producing well according to claim 1, is characterized in that: described polish rod seal device also comprises the seal be 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 of producing well according to claim 4, is characterized in that: described seal comprises malthoid or dust-proof seal ring.
6. the polish rod seal device of producing well according to claim 4, 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 of producing well according to claim 1, 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 of producing well according to claim 1, is characterized in that: described oil-through hole lower than described enter oilhole.
9. the polish rod seal device of producing well according to claim 1, is characterized in that: the extension that described packing lid stretches into towards the groove of described pressure cap, and described extension exceeds described packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420466907.2U CN204040981U (en) | 2014-08-18 | 2014-08-18 | The polish rod seal device of producing well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420466907.2U CN204040981U (en) | 2014-08-18 | 2014-08-18 | The polish rod seal device of producing well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204040981U true CN204040981U (en) | 2014-12-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420466907.2U Expired - Fee Related CN204040981U (en) | 2014-08-18 | 2014-08-18 | The polish rod seal device of producing well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204040981U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104179472A (en) * | 2014-08-18 | 2014-12-03 | 中国石油天然气股份有限公司 | Polished rod sealing device for production well |
-
2014
- 2014-08-18 CN CN201420466907.2U patent/CN204040981U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104179472A (en) * | 2014-08-18 | 2014-12-03 | 中国石油天然气股份有限公司 | Polished rod sealing device for production well |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141224 |
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| CF01 | Termination of patent right due to non-payment of annual fee |