CN204371194U - Wellhead polish rod sealer and packing for oil pumping unit - Google Patents
Wellhead polish rod sealer and packing for oil pumping unit Download PDFInfo
- Publication number
- CN204371194U CN204371194U CN201420795018.0U CN201420795018U CN204371194U CN 204371194 U CN204371194 U CN 204371194U CN 201420795018 U CN201420795018 U CN 201420795018U CN 204371194 U CN204371194 U CN 204371194U
- Authority
- CN
- China
- Prior art keywords
- packing
- seal box
- accommodating cavity
- pumping unit
- well
- 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.)
- Expired - Fee Related
Links
- 238000012856 packing Methods 0.000 title claims abstract description 159
- 238000005086 pumping Methods 0.000 title claims abstract description 34
- 210000004907 gland Anatomy 0.000 claims abstract description 63
- 238000007789 sealing Methods 0.000 abstract description 23
- 238000003825 pressing Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 4
- 239000003129 oil well Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000001138 tear Anatomy 0.000 description 1
Landscapes
- Sealing Devices (AREA)
- Details Of Valves (AREA)
Abstract
The utility model provides a beam-pumping unit well head polished rod sealing ware and packing, it includes: the sealing box, the sealing box gland and the pressing piece are hollow cylindrical bodies and are sleeved on the wellhead polished rod; the lower end of the sealing box is provided with a lower connecting end of the sealing box with internal threads and is in threaded connection with a wellhead valve; the upper end of the sealing box is provided with an inner thread and an upper connecting end of the expanding sealing box; a ring edge is arranged between the upper connecting end and the lower connecting end of the sealing box, and a first conical cavity with gradually reduced inner diameter from top to bottom is formed between the ring edge and the upper connecting end of the sealing box; the lower end of the gland of the sealing box extends into the sealing box to form an accommodating cavity, the inner diameter of the accommodating cavity is equal to the inner diameter of the upper end of the first conical cavity, the accommodating cavity and the first conical cavity form a packing accommodating cavity, and the upper end of the gland of the sealing box forms an upper connecting end of the gland of the sealing box, the inner diameter of the upper connecting end of the gland of the sealing box is smaller than the inner diameter of the accommodating cavity; the pressing piece is in threaded connection with the upper connecting end of the sealing box pressing cover. The utility model discloses not only can prolong the life of packing, can also be convenient take out the packing from the seal box.
Description
Technical field
The utility model relates to a kind of well mouth of oil well sealing device and a kind of packing being applicable to this device, especially a kind of well-head optical-lever sealer of pumping unit and have tapered portion packing.
Background technology
At present, the well-head optical-lever sealer of pumping unit that oil field is general, wherein used packing mostly is column packing.In process of production, packing and polished rod can cause poorly sealed phenomenon because of wearing and tearing through friction after a while to oil pumper, at this moment just need to change packing.And existing well-head optical-lever sealer of pumping unit, mainly there is packing box too dark, old packing is easily stuck in packing box inside, is not easily plucked out when packing changed by needs, the problem that operating time long difficulty is large; And existing column packing is short for application life, packing replacing frequently easily causes and stops length of finding time, and then has had a strong impact on the production time efficiency of oil well.
Utility model content
The purpose of this utility model is to provide a kind of well-head optical-lever sealer of pumping unit and packing, to overcome the defect that above-mentioned prior art exists.
For this reason, a kind of well-head optical-lever sealer of pumping unit that the utility model proposes and packing, it comprises:
One seal box, a seal box gland and a compressing member, described seal box, described seal box gland and described compressing member are hollow column and can be sheathed on wellhead polish rod,
The lower end of described seal box forms link under the female seal box of tool, and under described seal box, link can form with well head total valve and is threaded; The upper end of described seal box forms link on the female expanding seal box of tool; Inside projection one ring edge between link under link and described seal box on described seal box, described ring edge and described seal box are formed the first conical cavity of undergauge from top to bottom between link, the bottom diameter of described first conical cavity is greater than the internal diameter of described ring edge;
Described seal box gland lower end can extend in described seal box, and form with link on described seal box and be threaded, the inside of described seal box gland forms an accommodating cavity, the internal diameter of described accommodating cavity is equal with the internal diameter of described first conical cavity upper end, described accommodating cavity and described first conical cavity form packing accommodating cavity, packing can be placed in described packing accommodating cavity, and described seal box gland upper end forms link on seal box gland that internal diameter is less than described accommodating cavity internal diameter;
Described compressing member is threaded with link on described seal box gland and can extends in described seal box gland, and described compressing member can be resisted against described packing.
Well-head optical-lever sealer of pumping unit described above, wherein, described compressing member comprises a clamping screw, and described clamping screw is threaded with link on described seal box gland, and described clamping screw can be resisted against described packing.
Well-head optical-lever sealer of pumping unit described above, wherein, described compressing member also comprises a packing pressure pad, and described packing pressure pad is between described clamping screw and described packing, and described clamping screw can be resisted against described packing pressure pad.
Well-head optical-lever sealer of pumping unit described above, wherein, described packing pressure pad is arranged in described accommodating cavity, and the inwall lower end of described packing pressure pad forms internal diameter from top to bottom increases second conical cavity that can match with described packing gradually, the sidewall of described second conical cavity and described first conical cavity is identical with the angle of vertical direction.
Well-head optical-lever sealer of pumping unit described above, wherein, described first conical cavity and the described sidewall of the second conical cavity and the angle of vertical direction are 15 ° ~ 30 °.
Well-head optical-lever sealer of pumping unit described above, wherein, the degree of depth of upper surface to the described seal box upper surface of described ring edge is less than the degree of depth of described packing accommodating cavity.
Well-head optical-lever sealer of pumping unit described above, wherein, the outer wall of described seal box gland and described clamping screw is respectively equipped with at least one first handle and at least one second handle.
Well-head optical-lever sealer of pumping unit described above, wherein, the outer wall circumference in described seal box is formed with spanner portion.
A kind of packing, wherein, described packing is a column, at least lower end forms the first tapered portion of undergauge from top to bottom, and described packing can be placed in described packing accommodating cavity as claimed in claim 1, the lower end of described packing can be resisted against the upper surface of described ring edge, and matches with described first conical cavity.
Packing described above, wherein, packing upper end forms the second tapered portion of undergauge from the bottom to top.
Packing described above, wherein, described second tapered portion and the first tapered portion identical with the angle of vertical direction and be 15 ° ~ 30 °.
The well-head optical-lever sealer of pumping unit that the utility model proposes and packing have following characteristics and advantage:
The utility model relies on its compressing member had, when there are wearing and tearing in packing, by screwing compressing member downwards, it is made to produce downward pressure to packing, therefore the conical surface of the first conical cavity can produce to packing the enclasping force can holding wellhead polish rod tightly, make packing produce sealing effectiveness to wellhead polish rod further, the application life of packing can be extended.
The packing that the utility model proposes relies on its first tapered portion had and second tapered portion, can be placed in the well-head optical-lever sealer of pumping unit that the utility model proposes better, and by the pressure of compressing member to it, the cohesive force larger to wellhead polish rod can also be produced, improve sealing effectiveness.
In addition, when thoroughly wearing and tearing need to change in packing generation, because packing major part is placed in seal box gland, therefore, in the process that seal box gland revolves, the while of packing meeting, seal box is departed from seal box gland; Then, compressing member can be screwed downwards, make it produce downward pressure to packing, can easily old packing pushing tow from seal box gland of wearing and tearing be gone out.
The utility model also has that structure is simple, operating time that can shorten replacing packing, raising oil well production time the advantage such as rate.
Accompanying drawing explanation
The following drawings is only intended to schematically illustrate the utility model and explain, does not limit scope of the present utility model.Wherein:
Fig. 1 is schematic appearance of the present utility model;
Fig. 2 is the schematic appearance of seal box of the present utility model and gland;
Fig. 3 is seal box schematic appearance of the present utility model;
Fig. 4 is seal box gland schematic appearance of the present utility model;
Fig. 5 is packing schematic diagram of the present utility model.
Reference numeral illustrates:
1 seal box 3 compressing member
Link 31 clamping screw under 11 seal boxes
Link 311 second handle on 12 seal boxes
13 ring edge 32 packing pressure pads
14 first conical cavity 321 second conical cavities
15 spanner portion 4 packing accommodating cavities
2 seal box gland L1, L2 degree of depth
21 accommodating cavity 10 packings
Link 10A first tapered portion on 22 seal box glands
23 first handle 10B second tapered portion
Detailed description of the invention
In order to there be understanding clearly to technical characteristic of the present utility model, object and effect, now contrast accompanying drawing and detailed description of the invention of the present utility model be described:
As shown in Figure 1, a kind of well-head optical-lever sealer of pumping unit that the utility model proposes and packing, it comprises: seal box 1, seal box gland 2 and compressing member 3, and seal box 1, seal box gland 2 and compressing member 3 are hollow column and can be sheathed on wellhead polish rod.As shown in Figure 3, the lower end of seal box 1 forms link 11 under the female seal box of tool, and under seal box, link 11 can form with well head total valve (not shown) and is threaded; The upper end of seal box 1 forms link 12 on the female expanding seal box of tool; Inside projection one ring edge 13 between link 11 under link 12 and seal box on seal box, bottom diameter ring edge 13 and seal box being formed the first conical cavity 14, first conical cavity 14 of undergauge from top to bottom between link 12 is greater than the internal diameter of ring edge 13.As shown in Figure 4, seal box gland 2 lower end can extend in seal box 1, and form with link on seal box 12 and be threaded, the inside of seal box gland 2 forms an accommodating cavity 21, the internal diameter of accommodating cavity 21 is equal with the internal diameter of the first conical cavity 14 upper end, accommodating cavity 21 and the first conical cavity 14 form packing accommodating cavity 4 (as shown in Figure 2), packing 10 can be placed in packing accommodating cavity 4, and seal box gland 2 upper end forms link 22 on seal box gland that internal diameter is less than accommodating cavity 21 internal diameter.Compressing member 3 is threaded with link 22 on seal box gland, and can extend in seal box gland 2, and compressing member 3 can be resisted against packing 10.
When using well-head optical-lever sealer of pumping unit of the present utility model and packing, seal box 1, seal box gland 2 and compressing member 3 are sheathed on wellhead polish rod, packing 10 to be placed in packing accommodating cavity 4 and obvolvent in wellhead polish rod, well mouth of oil well is sealed, packing 10 lower surface is resisted against ring edge 13 upper surface, packing 10 bottom is placed in the first conical cavity 14, and compressing member 3 to extend in seal box gland 2 and to be resisted against packing 10; When utility model works, because on seal box gland, the internal diameter of link 22 is less than the internal diameter of accommodating cavity 21, when screwing seal box gland 2 downwards, on seal box gland, the lower end of link 22 can produce downward pressure to packing 10, makes packing 10 produce the pretightning force of energy obvolvent wellhead polish rod; When there are wearing and tearing in packing 10, by screwing compressing member 3 downwards, it is made to produce downward pressure to packing 10, therefore the conical surface of the first conical cavity 14 can produce to packing 10 enclasping force can holding wellhead polish rod tightly, make packing 10 produce sealing effectiveness to wellhead polish rod further, the application life of packing 10 can be extended.
Wherein, compressing member 3 comprises a clamping screw 31, and clamping screw 31 is threaded with link 22 on seal box gland, and clamping screw 31 can be resisted against packing 10.When wearing and tearing occur packing 10, by screwing clamping screw 31 downwards, making packing 10 hold wellhead polish rod further tightly and producing sealing effectiveness.
In addition, compressing member 3 also comprises a packing pressure pad 32, and packing pressure pad 32 is between clamping screw 31 and packing 10, and clamping screw 31 can be resisted against packing pressure pad 32.Further, packing pressure pad 32 is arranged in described accommodating cavity 4, and the inwall lower end of described packing pressure pad 32 forms internal diameter from top to bottom increases second conical cavity 321 that can match with described packing 10 gradually, the sidewall of the second conical cavity 321 and the first conical cavity 14 is identical with the angle of vertical direction, is 15 ° ~ 30 °.When using well-head optical-lever sealer of pumping unit of the present utility model and packing, packing 10 to be placed in packing accommodating cavity 4 and obvolvent in wellhead polish rod, wherein, the bottom of packing 10 is placed in the first conical cavity 14, and the top of packing 10 is placed in the second conical cavity 321; When utility model works, by screwing compressing member 3 downwards, it is made to produce downward pressure to packing 10, and the conical surface of the first conical cavity 14 and the second conical cavity 321 can produce to the bottom of packing 10 and top the enclasping force can holding wellhead polish rod tightly respectively, upper and lower both direction, simultaneously to packing 10 applied pressure, can make packing 10 pairs of wellhead polish rods have better sealing effectiveness.
In addition, the degree of depth L1 of upper surface to seal box 1 upper surface of ring edge 13 is less than the degree of depth L2 of packing accommodating cavity 22.When using well-head optical-lever sealer of pumping unit of the present utility model and packing, packing 10 is placed in packing accommodating cavity 4, when thoroughly wearing and tearing need to change packing 10, upwards screw seal box gland 2, it is made to be separated with seal box 1, the degree of depth be placed in seal box gland 2 due to packing 10 is larger, namely packing 10 major part is placed in seal box gland 2, therefore, in the process that seal box gland 2 revolves, packing 10 can depart from seal box 1 with seal box gland 2 simultaneously, then, screw compressing member 3 downwards, it is made to produce downward pressure to packing 10, easily old packing pushing tow from seal box gland 2 of wearing and tearing can be gone out, the packing be worn is made to be easy to change.
In a feasible embodiment, the outer wall of seal box gland 2 and clamping screw 31 is respectively equipped with at least one first handle 23 and at least one second handle 311.First handle 23 and seal box gland 2, the structure that can be formed in one or be threaded between second handle 311 with clamping screw 31, the utility model does not limit this.In the use procedure of well-head optical-lever sealer of pumping unit of the present utility model, by using first handle 23 and second handle 311 to screw, can more effortlessly on revolve or backspin seal box gland 2 and clamping screw 31.
In the embodiment that another is feasible, spanner portion 15 can also be formed with in the outer wall circumference of seal box 1.The instruments such as spanner can be sticked in spanner portion 15, can not only improve the stability of the instrumental purposes such as spanner when seal box 1, also make seal box 1 more easily move up and down.
As shown in Figure 5, a kind of packing 10 for the utility model proposes.Packing 10 is a column, and at least lower end forms the first tapered portion 10A of undergauge from top to bottom, and packing 10 can be placed in packing accommodating cavity 4, and the lower end of packing 10 can be resisted against the upper surface of ring edge 13, and matches with the first conical cavity 14.When packing 10 is placed in packing accommodating cavity 4, its first tapered portion 10A had, can make it be fitted in better in packing accommodating cavity 4.
Wherein, the upper end of packing 10 forms the second tapered portion 10B of undergauge from the bottom to top.When packing 10 is placed in packing accommodating cavity 4, the second tapered portion 10B that its upper end has can match with the second conical cavity 321 that packing pressure pad 32 has.
In addition, the second tapered portion 10B and the first tapered portion 10A is identical with the angle of vertical direction, and is 15 ° ~ 30 °.When using well-head optical-lever sealer of pumping unit of the present utility model and packing, the the first tapered portion 10A had due to packing 10 is identical with the angle of vertical direction with the second tapered portion 10B, screw seal box gland 2 or compressing member 3 downwards, packing 10 can produce the enclasping force identical to wellhead polish rod, therefore can entirety equably obvolvent in wellhead polish rod.
Operating principle of the present utility model is further illustrated: when using well-head optical-lever sealer of pumping unit of the present utility model and packing below in conjunction with accompanying drawing, use first handle 23 backspin seal box gland 2, make to revolve seal box gland 2 and press down packing 10, make it produce obvolvent in the pretightning force of wellhead polish rod, packing 10 can sealing wellhead polished rod; After packing 10 weares and teares, second handle 311 backspin clamping screw 31 can be used, clamping screw 31 is by pressing down packing pressure pad 32, pressure is produced to packing 10, therefore first conical cavity 14 and the second conical cavity 321 can produce the enclasping force of obvolvent wellhead polish rod simultaneously to packing 10, make packing 10 can produce sealing effectiveness to wellhead polish rod further, extend the application life of packing 10; When thoroughly wearing and tearing need to change packing 10, first handle 23 is used upwards to screw seal box gland 2, seal box gland 2 is separated with seal box 1, packing 10 can depart from seal box 1 with seal box gland 2, then, using second handle 311 to screw clamping screw 31 downwards, making clamping screw 31 by pressing down packing pressure pad 32, downward pushing tow pressure is produced to packing 10, can easily old packing pushing tow from seal box gland 2 of wearing and tearing be gone out.Therefore well-head optical-lever sealer of pumping unit of the present utility model and packing, can not only extend the application life of packing 10, also packing 10 can easily be taken out from seal box 1.
The foregoing is only the schematic detailed description of the invention of the utility model, and be not used to limit scope of the present utility model.Any those skilled in the art, equivalent variations done under the prerequisite not departing from design of the present utility model and principle and amendment, all should belong to the scope of the utility model protection.
Claims (11)
1. a well-head optical-lever sealer of pumping unit, it is characterized in that, described well-head optical-lever sealer of pumping unit comprises: a seal box, a seal box gland and a compressing member, and described seal box, described seal box gland and described compressing member are hollow column and can be sheathed on wellhead polish rod
The lower end of described seal box forms link under the female seal box of tool, and under described seal box, link can form with well head total valve and is threaded; The upper end of described seal box forms link on the female expanding seal box of tool; Inside projection one ring edge between link under link and described seal box on described seal box, described ring edge and described seal box are formed the first conical cavity of undergauge from top to bottom between link, the bottom diameter of described first conical cavity is greater than the internal diameter of described ring edge;
Described seal box gland lower end can extend in described seal box, and form with link on described seal box and be threaded, the inside of described seal box gland forms an accommodating cavity, the internal diameter of described accommodating cavity is equal with the internal diameter of described first conical cavity upper end, described accommodating cavity and described first conical cavity form packing accommodating cavity, packing can be placed in described packing accommodating cavity, and described seal box gland upper end forms link on seal box gland that internal diameter is less than described accommodating cavity internal diameter;
Described compressing member is threaded with link on described seal box gland and can extends in described seal box gland, and described compressing member can be resisted against described packing.
2. well-head optical-lever sealer of pumping unit as claimed in claim 1, it is characterized in that, described compressing member comprises a clamping screw, and described clamping screw is threaded with link on described seal box gland, and described clamping screw can be resisted against described packing.
3. well-head optical-lever sealer of pumping unit as claimed in claim 2, it is characterized in that, described compressing member also comprises a packing pressure pad, and described packing pressure pad is between described clamping screw and described packing, and described clamping screw can be resisted against described packing pressure pad.
4. well-head optical-lever sealer of pumping unit as claimed in claim 3, it is characterized in that, described packing pressure pad is arranged in described accommodating cavity, and the inwall lower end of described packing pressure pad forms internal diameter from top to bottom increases second conical cavity that can match with described packing gradually, the sidewall of described second conical cavity and described first conical cavity is identical with the angle of vertical direction.
5. well-head optical-lever sealer of pumping unit as claimed in claim 4, is characterized in that, described first conical cavity and the described sidewall of the second conical cavity and the angle of vertical direction are 15 ° ~ 30 °.
6. the well-head optical-lever sealer of pumping unit as described in any one of claim 1 to 5, is characterized in that, the degree of depth of upper surface to the described seal box upper surface of described ring edge is less than the degree of depth of described packing accommodating cavity.
7. the well-head optical-lever sealer of pumping unit as described in any one of claim 2 to 5, is characterized in that, the outer wall of described seal box gland and described clamping screw is respectively equipped with at least one first handle and at least one second handle.
8. the well-head optical-lever sealer of pumping unit as described in any one of claim 1 to 5, is characterized in that, the outer wall circumference in described seal box is formed with spanner portion.
9. a packing, it is characterized in that, described packing is a column, at least lower end forms the first tapered portion of undergauge from top to bottom, and described packing can be placed in described packing accommodating cavity as claimed in claim 1, the lower end of described packing can be resisted against the upper surface of described ring edge, and matches with described first conical cavity.
10. packing as claimed in claim 9, it is characterized in that, packing upper end forms the second tapered portion of undergauge from the bottom to top.
11. packings as claimed in claim 10, is characterized in that, described second tapered portion and the first tapered portion identical with the angle of vertical direction and be 15 ° ~ 30 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420795018.0U CN204371194U (en) | 2014-12-15 | 2014-12-15 | Wellhead polish rod sealer and packing for oil pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420795018.0U CN204371194U (en) | 2014-12-15 | 2014-12-15 | Wellhead polish rod sealer and packing for oil pumping unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204371194U true CN204371194U (en) | 2015-06-03 |
Family
ID=53327423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420795018.0U Expired - Fee Related CN204371194U (en) | 2014-12-15 | 2014-12-15 | Wellhead polish rod sealer and packing for oil pumping unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204371194U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971546A (en) * | 2016-07-12 | 2016-09-28 | 泸州聚源石油科技有限公司 | Blowout preventer for steel wire and cable |
| CN116717211A (en) * | 2023-08-10 | 2023-09-08 | 陕西斯锐明天智能设备有限公司 | Self-sealing packing box |
-
2014
- 2014-12-15 CN CN201420795018.0U patent/CN204371194U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971546A (en) * | 2016-07-12 | 2016-09-28 | 泸州聚源石油科技有限公司 | Blowout preventer for steel wire and cable |
| CN105971546B (en) * | 2016-07-12 | 2019-05-24 | 泸州聚源石油科技有限公司 | Preventer suitable for steel wire and cable |
| CN116717211A (en) * | 2023-08-10 | 2023-09-08 | 陕西斯锐明天智能设备有限公司 | Self-sealing packing box |
| CN116717211B (en) * | 2023-08-10 | 2023-11-28 | 陕西斯锐明天智能设备有限公司 | Self-sealing packing box |
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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: 20150603 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |