CN201165859Y - Energy-saving self-sealing packing box of oil pumping machine well head - Google Patents
Energy-saving self-sealing packing box of oil pumping machine well head Download PDFInfo
- Publication number
- CN201165859Y CN201165859Y CNU2008200039162U CN200820003916U CN201165859Y CN 201165859 Y CN201165859 Y CN 201165859Y CN U2008200039162 U CNU2008200039162 U CN U2008200039162U CN 200820003916 U CN200820003916 U CN 200820003916U CN 201165859 Y CN201165859 Y CN 201165859Y
- Authority
- CN
- China
- Prior art keywords
- packing box
- sealing
- thrust
- box body
- packing
- 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 67
- 238000007789 sealing Methods 0.000 title claims abstract description 50
- 238000005086 pumping Methods 0.000 title abstract description 4
- 238000004134 energy conservation Methods 0.000 claims abstract description 10
- 241000233855 Orchidaceae Species 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000007774 longterm Effects 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Sealing Devices (AREA)
Abstract
The utility model provides a well top energy conservation self-sealing packing box for the oil pumping machine, which relates to a polished rod sealing device for the oil pumping machine in the oil field. The prior sealing device has the disadvantages that the structure is complicated, the sealing performance can not be automatically adjusted, the maintenance is inconvenient, and the production efficiency and the running cost of the equipment are affected. The well top energy conservation self-sealing packing box adopts a plurality of arc thrust plates to be evenly installed on the outer side surface of a rubber packing set, thrust springs are nested on the thrust columns at the outer sides of the arc thrust plates and is under the pressure from a sealing set screw at the other end to generate thrust force, to ensure the rubber packing set to generate self-sealing function on the polished rod. The well top energy conservation self-sealing packing box has the advantages that the structure is simple, the operation is convenient, the time and the labor are saved, the sealing function is even, the wearing capacity between the packing set and the polished rod is small, the closedown times for maintenance is reduced, and the utilization efficiency of equipments is enhanced.
Description
Technical field
The utility model relates to dynamic sealing means, especially the sealing device of oil-field oil pumper polished rod.
Background technology
Oil-field oil pumper is a kind of long-term equipment of running continuously, relies on packing to seal when the polished rod of oil pumper moves up and down and reaches leak free requirement.Oil well reduces through long-term exploitation back oil content, and water content rises, and makes polished rod produce corrosion, and because oil reservoir descends, need constantly to adjust the height of polished rod, the polished rod diameter that is introduced into packing box is by levigate, after enter packing box the polished rod diameter still keep original diameter, make the polished rod plucked, packing differs to the sealing degree of tightness of polished rod, and this just needs to change associated components, causes stop work and production, strengthen maintenance load, increase cost.If oil well is subjected to strong wind weather or surface settlement in long-term operation, make well head and oil pumper produce deflection, need artificial centering to adjust, contact too tightly with packing as polished rod, frictional force is excessive, has increased power consumption; Too loose as contact, the packing leakiness.Must improve the sealing function of packing for this reason, reach self-styled and energy-conservation effect polished rod.
The innovation and creation content
The purpose of this utility model can reach the packing energy-conservation oil pumper well head packing box self-styled to polished rod for providing a kind of simple in structure, easy to operate.
The technical scheme that realizes above-mentioned purpose is as follows:
The energy-conservation self-styled packing box of oil pumper well head has the packing box body, above the packing box body, has pressure cap, the rubber packing is housed in the packing box body, packing box body bottom has the blowout preventer of connection screw thread seat, between rubber packing and packing box body, has equally distributed a plurality of arc thrust plate, the arc thrust plate covers the whole surface of rubber packing, middle side part has the thrust post that vertical fixing connects outside each arc thrust plate, on the packing box body, has sealing jackscrew screw thread seat with each thrust post corresponding position, the length of sealing jackscrew screw thread seat is greater than the length of thrust post, the thrust post is inserted in the sealing jackscrew screw thread seat and at sealing jackscrew screw thread seat oral area the sealing jackscrew is housed, the outside at the thrust post is with thrust spring, one end of thrust spring contacts with the arc thrust plate, the other end contacts with sealing jackscrew bottom surface, on the rubber packing, be equipped with every orchid, the cone rubber sealing ring is being housed above orchid, on the cone rubber sealing ring, be stamped pressure cap, pressure cap medial surface and packing box body upper outside face have the screw thread that is connected with blowout preventer screw thread seat by being threaded in packing box body lower inside surface.Between rubber packing and packing box body, have equally distributed four arc thrust plates.
After the utility model and oil-extractor polish-rod are equipped, only need the sealing jackscrew is tightened, thrust spring produces outside thrust by compression, make the arc thrust plate tightly push down the rubber packing, play the effect of sealing, after the oil pumper long-term operation, frayed or the corrosion of polished rod, variation in diameter, the elastic force of thrust spring acts on the arc thrust plate at any time, pushes down the rubber packing all the time tightly, keeps sealing without leakage, if well head and oil pumper generation deflection, the rubber packing is to the sealing function direction difference of polished rod, and sealing function changes, and the rightabout sealing function of deflection weakens, this moment, the thrust spring of this direction can be regulated elastic force automatically, and sealing function is remained unchanged.
The utlity model has following beneficial effect:
(1) simple in structure, component are few, deducted secondary packing box of the prior art and its accessory, reduced manufacturing cost.
Easy to operate when (2) changing packing, only need a people just can finish saving of work and time.
(3) sealing function does not need the manpower adjustment, utilizes the elastic force of the thrust spring of different directions, reaches self-styled purpose.
(4) improved the friction of polished rod and packing, sealing function is even, has reduced power consumption, and the wearing and tearing of polished rod reduce, and has reduced the number of times of changing packing, has reduced the time of shutdown of pumping machine, has improved production efficiency, has reduced running cost.
Description of drawings
Fig. 1 is the energy-conservation self-styled packing box structural representation of the utility model oil pumper well head
Fig. 2 is the schematic top plan view of packing box body and arc thrust plate relative position
The name of each sequence number is called among the figure:
1-packing box body, 2-pressure cap, 3-cone rubber sealing ring, 4-every blue,
5-rubber packing, 6-thrust plate, 7-sealing jackscrew screw thread seat, 8-sealing jackscrew,
9-thrust spring, 10-sealing ring, 11-arc thrust plate, 12-and blowout preventer silk
Screw thread, 13-oil-extractor polish-rod seal channel that Button Block connects
The specific embodiment
Fig. 1 and Fig. 2 have shown a kind of embodiment of the present utility model.The rubber packing 5 that multilayer builds up is housed in packing box body 1, between the packing box body, be equipped with and be evenly distributed on rubber packing four arc thrust plates 11 on every side, middle side part respectively is equipped with thrust post 6 outside each arc thrust plate, with sealing jackscrew screw thread seat 7 is housed on the corresponding packing box body in thrust post position, sealing jackscrew 8 is connected with sealing jackscrew screw thread seat by sealing ring 10, on the thrust post, be with thrust spring 9, thrust spring one end contacts with the arc thrust plate, the other end contacts with sealing jackscrew bottom surface, above the rubber packing, be equipped with every blue 4, cone rubber sealing ring 3 is being housed above orchid, above the cone rubber sealing ring, add and be stamped pressure cap 2, pressure cap is threaded with packing box body top, has the screw thread mouth that blowout preventer screw thread seat connects in packing box body lower inside.
Claims (2)
1, the energy-conservation self-styled packing box of oil pumper well head, has the packing box body, above the packing box body, has pressure cap, the rubber packing is housed in the packing box body, packing box body bottom has the blowout preventer of connection screw thread seat, it is characterized by and between rubber packing and packing box body, have equally distributed a plurality of arc thrust plate, the arc thrust plate covers the whole surface of rubber packing, middle side part has the thrust post that vertical fixing connects outside each arc thrust plate, on the packing box body, has sealing jackscrew screw thread seat with each thrust post corresponding position, the length of sealing jackscrew screw thread seat is greater than the length of thrust post, the thrust post is inserted in the sealing jackscrew screw thread seat and at sealing jackscrew screw thread seat oral area the sealing jackscrew is housed, the outside at the thrust post is with thrust spring, one end of thrust spring contacts with the arc thrust plate, the other end contacts with sealing jackscrew bottom surface, on the rubber packing, be equipped with every orchid, the cone rubber sealing ring is being housed above orchid, on the cone rubber sealing ring, be stamped pressure cap, pressure cap medial surface and packing box body upper outside face have the screw thread that is connected with blowout preventer screw thread seat by being threaded in packing box body lower inside surface.
2, the energy-conservation self-styled packing box of oil pumper well head according to claim 1 is characterized by have equally distributed four arc thrust plates between rubber packing and packing box body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200039162U CN201165859Y (en) | 2008-02-25 | 2008-02-25 | Energy-saving self-sealing packing box of oil pumping machine well head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200039162U CN201165859Y (en) | 2008-02-25 | 2008-02-25 | Energy-saving self-sealing packing box of oil pumping machine well head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201165859Y true CN201165859Y (en) | 2008-12-17 |
Family
ID=40191245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200039162U Expired - Fee Related CN201165859Y (en) | 2008-02-25 | 2008-02-25 | Energy-saving self-sealing packing box of oil pumping machine well head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201165859Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105135025A (en) * | 2015-08-24 | 2015-12-09 | 洛阳三隆安装检修有限公司 | Seal packing for rotary valve and end cover |
| CN105715222A (en) * | 2016-01-28 | 2016-06-29 | 大庆因你美丽机械设备制造有限公司 | Squirrel-cage type polished rod sealing device |
-
2008
- 2008-02-25 CN CNU2008200039162U patent/CN201165859Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105135025A (en) * | 2015-08-24 | 2015-12-09 | 洛阳三隆安装检修有限公司 | Seal packing for rotary valve and end cover |
| CN105715222A (en) * | 2016-01-28 | 2016-06-29 | 大庆因你美丽机械设备制造有限公司 | Squirrel-cage type polished rod sealing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081217 Termination date: 20120225 |