CN201080800Y - Screw seal device for oil pumping unit - Google Patents
Screw seal device for oil pumping unit Download PDFInfo
- Publication number
- CN201080800Y CN201080800Y CNU2007201172566U CN200720117256U CN201080800Y CN 201080800 Y CN201080800 Y CN 201080800Y CN U2007201172566 U CNU2007201172566 U CN U2007201172566U CN 200720117256 U CN200720117256 U CN 200720117256U CN 201080800 Y CN201080800 Y CN 201080800Y
- Authority
- CN
- China
- Prior art keywords
- rubber cylinder
- packing element
- sucker rod
- machine oil
- utility
- 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
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- Sealing Devices (AREA)
Abstract
The utility model relates to a sucker rod sealing device, which comprise a press cap, a machine oil box, a rubber cylinder collar, a rubber cylinder connection part, a corrugated rubber cylinder, and a fixing clamp; the machine oil box is arranged in the press cap, the press cap is thread-connected with the rubber cylinder collar, the rubber cylinder connection part is arranged at the bottom of the machine oil box and thread-connected with the rubber cylinder connection part, the upper end of the corrugated rubber cylinder is sleeved on the rubber cylinder connection part, the lower end of the corrugated rubber cylinder is arranged fixedly with the sucker rod by the fixing clamp. The utility model is arranged below the wellhead device, and sleeved on the sucker rod by adopting an appropriate length of corrugated rubber cylinder or thread rubber cylinder, sealing is performed on annular space between the sucker rod and the oil pipe, the annular space between the rubber cylinder and the sucker rod is added with machine oils intermittently by the machine oil box, so as to play the role of lubrication, thereby reducing the friction between sucker rod and rubber cylinder and having good sealing effect; the utility model can prevent the sucker rod from directly contacting with the obtained mixed liquids, thereby no damaging the surface of sucker rod, the utility model has also long service life and can reduce energy consumption correspondingly, no manual adjustment is needed frequently, thereby saving labor force.
Description
One, technical field
The utility model relates to the oil-field oil pumper polish rod seal device.
Two, background technology
The present oil-extractor polish-rod sealing device of oil recovery usefulness is to adopt annular space between packing box packing seal polished rod and the oil pipe to reach the purpose of sealing, packing box be contained in the well head blowout preventer above.The problem that exists is: packing box makes polished rod directly contact with the mixed liquor of extraction, Long contact time, and mixed liquor can corrode polished rod, causes the polished rod surface irregularity, influences sealing effectiveness; Oil-extractor polish-rod is to move back and forth, and back and forth stroke is generally all more than two meters, days back and forth several thousand times, and the filler quick abrasion; Oil pumper filler packing is to play sealing function with the filler lock ring around polished rod, and filler is in sealing, because filler lock ring polished rod causes motor load to increase, power consumption also increases simultaneously; The replacing encapsulant need be often dosed in present packing filling sealing, and will carry out fastening every day while, adjusts, and the labour has high input.
Three, summary of the invention
The purpose of this utility model is to design a kind of oil-extractor polish-rod sealing device at the problems referred to above, is used to solve the oil-extractor polish-rod sealing, directly contacts with the mixed liquor of extraction for a long time, corrosion polished rod surface, the problem of filler quick abrasion.
The utility model is to be achieved by following technical proposals: a kind of oil-extractor polish-rod sealing device comprises that pressure cap, machine oil box, packing element box cupling, packing element connector, ripple packing element, fixing card constitute, the machine oil box is placed in the pressure cap, pressure cap is threaded with the packing element box cupling, the bottom that the packing element connector is positioned at the machine oil box is threaded with another packing element connector, ripple packing element upper end is sleeved on the packing element connector, and the lower end is fixed with polished rod with fixing card.
The good effect that the utlity model has: the utility model is installed in below the well head blowout preventer, adopt the ripple packing element or the screw thread packing element of suitable length, be set on the oil-extractor polish-rod, polished rod and oil pipe annular space are sealed, add machine oil by the machine oil box at packing element and polished rod annular space, play lubrication, reduce the friction between polished rod and the packing element, good sealing effect; Avoided polished rod directly to contact, do not damaged the polished rod surface with the mixed liquor of extraction; Long service life can cut down the consumption of energy accordingly; Often do not need again to have saved the labour with manually adjusting.
Four, description of drawings
Fig. 1 is an overall structure installment state schematic diagram of the present utility model;
Fig. 2 is a ripple packing element structural representation in the utility model;
Fig. 3 is a screw thread packing element structural representation in the utility model.
Among the figure: 1 pressure cap, 2 machine oil boxes, 3 packing element box cuplings, 4 packing element connectors, 5 packing element connectors, 6 ripple packing elements, 7 polished rods, 8 oil pipes, 9 fixing cards.
Five, the specific embodiment
Figure 1 shows that the utility model overall structure installment state schematic diagram, what provide is the overall structure of utility model and the installment state schematic diagram that polished rod, oil pipe are installed together.As shown in the figure, the oil-extractor polish-rod sealing device comprises pressure cap 1, machine oil box 2, and packing element box cupling 3, packing element connector 4,5, ripple packing element 6, fixing card 9 constitutes.Machine oil box 2 is placed in the pressure cap 1, and pressure cap 1 is threaded with packing element box cupling 3, and the bottom that packing element connector 4 is positioned at machine oil box 2 is threaded with packing element connector 5.Ripple packing element 6 upper ends are sleeved on the packing element connector 5, and the lower end is fixing with polished rod 7 with fixing card 9.For can firmly being sleeved on the packing element connector 5, ripple packing element 6 upper ends do not come off, cannelure is driven in the outside at packing element connector 5, ripple packing element 6 upper ends are made and the corresponding annular protrusion of packing element connector 5 exterior annular grooves, be sleeved on the packing element connector 5.Ripple packing element 6 is the ripple packing element, and what Fig. 2 provided is the structural representation of ripple packing element, and its length selects to determine that according to the stroke of oil-extractor polish-rod also can select the screw thread packing element of suitable length for use, the structural representation of screw thread packing element is consulted Fig. 3.
During installation, ripple packing element 6 is sleeved on the polished rod 7, ripple packing element 6 upper ends are sleeved on the packing element connector 5, packing element connector 5 is threaded with packing element connector 4, machine oil box 2 is placed on to sit in the pressure cap 1 and is contained on the packing element connector 4, packing element box cupling 3 is threaded with pressure cap 1 in the outside, and pressure cap 1 is fitted on the oil box 2.Oil-extractor polish-rod sealing device integral body places below the wellhead assembly, because packing element 6 places in the annular space of polished rod 7 and oil pipe 8, ripple packing element 6 lower ends are fixing with polished rod 7 with fixing card 9, make polished rod 7 and ripple packing element 6, ripple packing element 6 be in sealing state with the annular space of oil pipe 8.
Claims (2)
1. oil-extractor polish-rod sealing device, it is characterized in that: this device comprises that pressure cap (1), machine oil box (2), packing element box cupling (3), packing element connector (4,5), ripple packing element (6), fixing card (9) constitute, machine oil box (2) is placed in the pressure cap (1), pressure cap (1) is threaded with packing element box cupling (3), the bottom that packing element connector (4) is positioned at machine oil box (2) is threaded with packing element connector (5), ripple packing element (6) upper end is sleeved on the packing element connector (5), and the lower end is fixing with fixing card (9) and polished rod (7).
2. oil-extractor polish-rod sealing device according to claim 1 is characterized in that: described packing element (6) is the screw thread packing element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201172566U CN201080800Y (en) | 2007-10-20 | 2007-10-20 | Screw seal device for oil pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201172566U CN201080800Y (en) | 2007-10-20 | 2007-10-20 | Screw seal device for oil pumping unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201080800Y true CN201080800Y (en) | 2008-07-02 |
Family
ID=39614474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201172566U Expired - Fee Related CN201080800Y (en) | 2007-10-20 | 2007-10-20 | Screw seal device for oil pumping unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201080800Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102817570A (en) * | 2011-09-30 | 2012-12-12 | 南通新诚电子有限公司 | Packing sealing device for oilfield wellhead |
| CN103437733A (en) * | 2013-08-19 | 2013-12-11 | 东营睿智友亮石油设备有限公司 | Well-mouth polished-rod centralizing sealer |
| CN104179471A (en) * | 2013-05-22 | 2014-12-03 | 西安海枫机电科技有限公司 | Flexible leak-free supercharged wellhead device |
| CN104695888A (en) * | 2013-12-04 | 2015-06-10 | 丹东波纹管密封有限公司 | Automatic backflow wellhead sealer |
-
2007
- 2007-10-20 CN CNU2007201172566U patent/CN201080800Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102817570A (en) * | 2011-09-30 | 2012-12-12 | 南通新诚电子有限公司 | Packing sealing device for oilfield wellhead |
| CN104179471A (en) * | 2013-05-22 | 2014-12-03 | 西安海枫机电科技有限公司 | Flexible leak-free supercharged wellhead device |
| CN103437733A (en) * | 2013-08-19 | 2013-12-11 | 东营睿智友亮石油设备有限公司 | Well-mouth polished-rod centralizing sealer |
| CN104695888A (en) * | 2013-12-04 | 2015-06-10 | 丹东波纹管密封有限公司 | Automatic backflow wellhead sealer |
| CN104695888B (en) * | 2013-12-04 | 2017-02-08 | 丹东波纹管密封有限公司 | Automatic backflow wellhead sealer |
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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: 20080702 Termination date: 20151020 |
|
| EXPY | Termination of patent right or utility model |