CN202832340U - Automatic packing box - Google Patents
Automatic packing box Download PDFInfo
- Publication number
- CN202832340U CN202832340U CN 201220430364 CN201220430364U CN202832340U CN 202832340 U CN202832340 U CN 202832340U CN 201220430364 CN201220430364 CN 201220430364 CN 201220430364 U CN201220430364 U CN 201220430364U CN 202832340 U CN202832340 U CN 202832340U
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- packing
- automatic
- level
- sealing
- spring
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Abstract
The utility model relates to an automatic packing box which comprises a first-level sealing assembly composed of a sealing barrel, a lower press cap, first-level packing and a marking line through connection in sequence. The automatic packing box is characterized by further comprising an automatic offset regulating assembly composed of a ball head, a ball head press cap, a ball seat and a connection sleeve through connection in sequence, an automatic press complementation device which is arranged in the press cap and composed of a spring and an upper press cover, and second-level packing. The marking line in the first-level sealing assembly is arranged on the ball head located in the automatic press complementation device, and the second-level packing is arranged in the sealing barrel in the first-level sealing assembly. The upper press cover is arranged on the second-level packing, and the spring is arranged at the center of the upper press cover. The automatic packing box can prolong the service life of the packing, reduces replacement frequency of the packing, reduces cost, simultaneously is simple in operation, convenient to use, reliable in sealing, and high in return pressure resistance, and meets high standard construction requirements of oil field well sites.
Description
Technical field
The utility model relates to the sealing tool that a kind of oil well operation uses, and relates in particular to automatic stuffing box.
Background technology
At present, known used for oil extractor packing box all possesses bias adjusting function, but when changing packing, need to change packing after the pressure release one step ahead, increased like this operating personnel's workload, reduced simultaneously operating efficiency, and known packing box does not possess the automatic Regulation function, and packing will lose sealing function after wearing and tearing, thereby causes the well mouth of oil well leakage of oil.The operating personnel needs the degree of tightness state of short-term fixed time testing packing to be adjusted, and wastes time and energy.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of Effective Raise operating efficiency, time saving and energy saving automatic stuffing box.
For addressing the above problem, automatic stuffing box described in the utility model, comprise the primary seal assembly that is connected and composed successively by sealing drum, lower pressing cap, one-level packing, marker line, it is characterized in that: automatic compensation device and secondary packing that it also comprises the automatic deflection adjusting assembly that is connected and composed successively by bulb, bulb pressure cap, ball seat and adapter sleeve and places in the pressure cap, is made of spring and upper press cover; Marker line in the described primary seal assembly are located on the bulb in the described automatic deflection adjusting assembly, are provided with described secondary packing in the sealing drum in the described primary seal assembly, and this secondary packing is provided with described upper press cover; Described upper press cover center is provided with described spring.
The utility model compared with prior art has the following advantages:
1, because the utility model is provided with secondary packing and automatic deflection adjusting assembly, therefore, can greatly reduce the eccentric wear of packing, prolong the application life of packing, reduce the packing replacing frequency, reduce cost; Simultaneously, be provided with automatic compensation device in the utility model, therefore, higher for back pressure, as to be not more than 25MPa oil well does not need the emptying pressure release with regard to the packing of replaceable wearing and tearing.
2, the utility model high-strength spring that to increase again a sealing device on the basis of primary seal assembly be secondary packing and an energy Self-pressurizing agri, so that sealing reaches maximization, the second sealing device work when changing packing, play well sealing function, change the purpose that packing does not need pressure release thereby reach.Simultaneously, secondary seal packing top adds high-strength spring spring Self-pressurizing agri and then make the secondary packing can well play sealing function when playing secondary packing normal operation wearing and tearing.
3, the utility model has increased sealing arrangement in two stages and automatic compensation device, change the workflow that packing needs pressure release thereby improved, and avoided short-term to check the loaded down with trivial details work of packing state, safeguard again economic effect of save trouble and labor thereby reached from changing to, Effective Raise operating efficiency.
4, the utility model is easy and simple to handle in installation, operation process, and life cycle is long, will play a positive role for safeguarding the oil field High-efficient Production.
Description of drawings
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described in further detail.
Fig. 1 is structural representation of the present utility model.
Among the figure: 1-pressure cap, 2-spring, 3-upper press cover, 4-secondary packing, 5-sealing drum, 6-lower pressing cap, 7-one-level packing 8-marker line, 9-bulb, 10-bulb pressure cap 11-ball seat and adapter sleeve.
The specific embodiment
As shown in Figure 1, automatic stuffing box comprises the primary seal assembly that connected and composed successively by sealing drum 5, lower pressing cap 6, one-level packing 7, marker line 8 and the automatic deflection adjusting assembly that connected and composed successively by bulb 9, bulb pressure cap 10, ball seat and adapter sleeve 11 and the automatic compensation device and the secondary packing 4 that place in the pressure cap 1, be made of spring 2 and upper press cover 3.Marker line 8 in the primary seal assembly are located on the bulb 9 in the automatic deflection adjusting assembly; Be provided with secondary packing 4 in the sealing drum 5 in the primary seal assembly, this secondary packing 4 is provided with upper press cover 3; Upper press cover 3 centers are provided with spring 2.
During installation, first ball seat and adapter sleeve 11 are tightened, put again bulb 9, the aligned position bulb pressure cap 10 of screwing on, and the parts such as one-level packing 7, lower pressing cap 6 are put into bulb 9 chambeies; Then sealing drum 5 is threaded on the bulb 9, guarantees that the lower surface of sealing drum 5 can not be above the marker line 8 on the bulb 9; At last secondary packing 4, upper press cover 3, spring 2 are put into sealing drum 5, build pressure cap 1, namely finish installation.
In the course of work, when sucker rod polished rod and packing box center misalign when being the sucker rod polished rod deflection, there is radially interaction force in secondary packing 4 with sucker rod polished rod, owing to having interaction force between secondary packing 4 and the sucker rod polished rod, therefore this moment, bulb 9 carried out automatic deflection adjusting (bulb 9 and ball seat and adapter sleeve 11 by power along suitable secondary packing 4 stressed directions take the interaction force between secondary packing 4 and the sucker rod polished rod in ball seat and adapter sleeve 11 centered by the packing box center, between the bulb pressure cap 10 for being slidingly matched, the cooperation place has different in nature cushion rubber to seal, therefore bulb 9 can carry out the circumference deflection in ball seat and adapter sleeve 11), afterwards reach the effect of automatic adjusting deflection, spring 2 plays the automatic compensation effect, spring 2 can be pressed in the secondary packing 4 after the wearing and tearing in the sealing drum closely when the secondary packing uses wearing and tearing, can and sucker rod polished rod between have sealing force, thereby can continue to play sealing function, when spring 2 is in drift, make that spring 2 is in running order to reach sealing effectiveness to compress secondary packing 4 thereby can regulate pressure cap 1 downwards.
The replacing of packing:
At first when secondary packing 4 wearing and tearing can't be used, the stop pumping oil machine, the marker line that then sealing drum 5 are torqued-up to bulb 9 make it compress one-level packing 7 below 8, and sealing prevents that oil gas water is excessive.Then, unclamp pressure cap 1, take out old packing, tighten pressure cap 1 behind the new packing of packing into.Next unclamps sealing drum 5 to marker line 8 above correct positions, makes one-level packing 7 be in free state.Start at last oil pumper.
Claims (1)
1. automatic stuffing box, comprise the primary seal assembly that is connected and composed successively by sealing drum (5), lower pressing cap (6), one-level packing (7), marker line (8), it is characterized in that: it also comprise the automatic deflection adjusting assembly that is connected and composed successively by bulb (9), bulb pressure cap (10), ball seat and adapter sleeve (11) and place in the pressure cap (1), by automatic compensation device and the secondary packing (4) of spring (2) and upper press cover (3) formation; Marker line (8) in the described primary seal assembly are located on the bulb (9) in the described automatic deflection adjusting assembly, be provided with described secondary packing (4) in the sealing drum (5) in the described primary seal assembly, this secondary packing (4) is provided with described upper press cover (3); Described upper press cover (3) center is provided with described spring (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220430364 CN202832340U (en) | 2012-08-28 | 2012-08-28 | Automatic packing box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220430364 CN202832340U (en) | 2012-08-28 | 2012-08-28 | Automatic packing box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202832340U true CN202832340U (en) | 2013-03-27 |
Family
ID=47944072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220430364 Expired - Fee Related CN202832340U (en) | 2012-08-28 | 2012-08-28 | Automatic packing box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202832340U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952409A (en) * | 2016-07-11 | 2016-09-21 | 中国石油化工股份有限公司华东油气分公司泰州采油厂 | Hydraulic wellhead polished rod stuffing box self-tightening device |
-
2012
- 2012-08-28 CN CN 201220430364 patent/CN202832340U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952409A (en) * | 2016-07-11 | 2016-09-21 | 中国石油化工股份有限公司华东油气分公司泰州采油厂 | Hydraulic wellhead polished rod stuffing box self-tightening device |
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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: 20130327 Termination date: 20150828 |
|
| EXPY | Termination of patent right or utility model |