CN214145437U - Intelligent wellhead sealing device - Google Patents
Intelligent wellhead sealing device Download PDFInfo
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- CN214145437U CN214145437U CN202023070295.XU CN202023070295U CN214145437U CN 214145437 U CN214145437 U CN 214145437U CN 202023070295 U CN202023070295 U CN 202023070295U CN 214145437 U CN214145437 U CN 214145437U
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Abstract
An intelligent wellhead sealing device. The packing mainly solves the problem that the existing packing is easy to wear and needs to be frequently replaced and shut down when the packing is replaced. The method is characterized in that: the packing bin (5) is internally provided with a sealing packing (3), the upper part of the sealing packing (3) is provided with a blowout prevention pressure cap (18), the side wall of the blowout prevention pressure cap (18) is connected with a blowout prevention ball jacket (19), and the blowout prevention ball (1) is arranged in the blowout prevention ball jacket; the packing bin (5) is externally provided with a packing bin outer sleeve (17), the packing bin outer sleeve (17) is connected with a feeding device, the feeding device comprises a storage box (16) and a worm and gear mechanism (4), packing connected with sealing packing (3) is arranged in the storage box (16), a worm in the worm and gear mechanism (4) is connected with a feeding motor (15), and a worm gear is connected with the packing bin outer sleeve (17). This intelligence well head sealing device need not frequently change the packing, need not shut down convenient operation when tight packing.
Description
Technical Field
The utility model relates to the field of machinary, an intelligence well head sealing device specifically says so.
Background
At present, most oil fields adopt sucker rod pumping equipment, and the sucker rod drives an oil well pump to reciprocate up and down in an oil pipe to pump oil. In the oil recovery technique at present, in order to solve the problem of well head sealing, a plurality of rubber packing are generally cut off, the cutting openings are staggered, and the packing box is arranged in the cutting openings and then is compressed to realize the sealing of the polish rod. However, after the sealing device is used for a period of time, the sealing effect is lost due to a certain gap between the sealing ring and the polish rod, so that the packing box is frequently replaced; in addition, when the packing box is replaced, the pumping unit must stop working in order to prevent crude oil leakage, which takes time and labor.
Disclosure of Invention
Need the not enough of shut down when needing frequent change, change the packing in order to overcome current packing easy wearing and tearing, the utility model provides an intelligent wellhead sealing device, this intelligent wellhead sealing device need not frequently change the packing, need not shut down convenient operation when tight packing.
The technical scheme of the utility model is that: an intelligent wellhead sealing device comprises a filler bin, wherein sealing filler is arranged in the filler bin, a blowout prevention pressure cap is arranged at the upper part of the sealing filler, a blowout prevention ball outer sleeve is connected to the side wall of the blowout prevention pressure cap, a blowout prevention ball is arranged in the blowout prevention ball outer sleeve, the inner side of the blowout prevention ball is in contact with a polished rod, and a spring is arranged on the outer side of the blowout prevention ball; a filler bin jacket is arranged outside the filler bin, a feeding device is connected to the filler bin jacket and comprises a storage box and a worm and gear mechanism, filler connected with sealing filler is arranged in the storage box, a worm in the worm and gear mechanism is connected with a feeding motor, and a worm gear is connected with the filler bin jacket; the bottom of the packing bin is connected with a sealing sleeve, the sealing sleeve is connected with a sealing wrench, the interior of the sealing wrench is connected with a bevel gear through a transmission shaft, the interior of the bevel gear is connected with a sealing push sleeve, and the lower portion of the sealing push sleeve is provided with a sealing rubber sleeve.
The side wall of the filling bin is provided with two through holes respectively, the two through holes are provided with a lower limit pressure sensor and an upper limit pressure sensor respectively, the lower limit pressure sensor and the upper limit pressure sensor are set with different threshold values respectively, when the pressure in the filling bin is reduced to the threshold value set by the lower limit pressure sensor, the lower limit pressure sensor sends a signal, the feeding motor is controlled to start after the conversion of a digital-to-analog converter, when the pressure in the filling bin is increased to the threshold value set by the upper limit pressure sensor, the upper limit pressure sensor sends a signal, and the feeding motor is controlled to stop after the conversion of the digital-to-analog converter.
The bottom of the sealing sleeve is provided with a deviation adjusting device which comprises a deviation adjusting ball, a universal adjusting sleeve is arranged outside the deviation adjusting ball, and the upper end and the lower end of the deviation adjusting ball are provided with locking sealing rings.
And a thrust bearing is arranged between the filler bin and the filler bin outer sleeve.
The utility model discloses following beneficial effect has: by adopting the scheme, the intelligent energy-saving eccentric wear prevention sealing device can automatically add the packing after the packing is worn, so that the frequent replacement of the packing is avoided, and the rod can be effectively prevented from being blown out after being broken, thereby protecting the environment and reducing the pollution; the labor intensity of oil extraction workers is reduced, the oil extraction device is particularly suitable for oil fields in remote areas, the inspection and maintenance of the oil wells by the oil extraction workers are reduced, and the personal safety of the oil extraction workers is protected.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a control schematic diagram of the present invention.
In the figure, 1-blowout prevention ball, 2-thrust bearing, 3-sealing filler, 4-worm gear mechanism, 5-filler bin, 6-pressure sensor, 8-bevel gear, 9-sealer wrench, 10-sealing push sleeve, 11-sealing rubber sleeve, 12-deflection adjusting ball, 13-wellhead joint, 14-universal adjusting sleeve, 15-charging motor, 16-storage box, 17-filler bin outer sleeve, 18-blowout prevention pressure cap, 19-blowout prevention ball outer sleeve, 20-spring, 21-sealing sleeve and 22-locking sealing ring.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
as shown in fig. 1 and 2, the intelligent wellhead sealing device comprises a filler bin 5, wherein a sealing filler 3 is arranged inside the filler bin 5, and the sealing filler 3 is positioned outside a polish rod and is a continuous spiral packing. The upper part of the sealing packing 3 is provided with a blowout prevention pressure cap 18, the side wall of the blowout prevention pressure cap 18 is connected with a blowout prevention ball jacket 19, a through hole is formed at the joint of the blowout prevention pressure cap 18 and the blowout prevention ball jacket 19, a cavity is arranged in the blowout prevention ball jacket 19, a blowout prevention ball 1 is arranged in the cavity, the inner side of the blowout prevention ball 1 is in contact with a polished rod, and the outer side of the blowout prevention ball 1 is provided with a spring 20. The outer end part of the blowout prevention ball jacket 19 is connected with an end cover, the end part of the spring 20 is propped against the end cover, and an oil injection nozzle is arranged on the end cover. When a rod breakage accident occurs and the rod breakage is positioned below the sealing packing 3, the blowout-preventing ball 1 pops up under the elastic force of the spring 20 to seal the upper part of the wellhead, and the blowout-preventing function can be achieved.
And a filling bin jacket 17 is connected to the outside of the filling bin 5, and a thrust bearing 2 is arranged between the filling bin jacket and the filling bin jacket. The external feeding device that is equipped with of filler storehouse overcoat 17, feeding device include storage box 16, reinforced motor 15, worm gear mechanism 4, and wherein storage box 16 fixes on filler storehouse overcoat 17, and storage box 16 communicates with each other through the inside of filler passageway and filler storehouse 5, is equipped with the filler that links to each other with sealed filler 3 in the storage box 16, can be continuous to the interior feed of filler storehouse. The worm in the worm and gear mechanism 4 is connected with the feeding motor 15, the worm gear is connected with the stuffing bin outer sleeve 17, and after the feeding motor 15 is started, the worm and gear mechanism 4 drives the stuffing bin outer sleeve 17 to rotate, so that the sealing stuffing in the storage box 16 is continuously added into the stuffing bin 5.
And a through hole is formed in the side wall of the filler bin 5, and a pressure sensor 6 is arranged at the through hole and used for collecting sealing pressure data in the filler bin. Simultaneously, still be provided with two spacing sensors in the filler storehouse 5, two spacing sensors set for different pressure values in advance, are the highest value and the lowest value of 5 internal pressure in filler storehouse respectively. Along with the reciprocating operation of the polish rod, the sealing pressure in the packing bin 5 can be reduced, when the sealing pressure in the packing bin is reduced to a threshold value preset by a lower limit sensor, a sensing signal is sent by the pressure sensor 6, the sensing signal is amplified by the transmitter and transmitted to the digital-to-analog converter, the sensing signal is converted into a low-level signal through D/A conversion and amplification, a motor driver is triggered to start the feeding motor 15, and feeding is started. Along with the filling of the sealing filler, the sealing pressure in the filler bin can rise, when the sealing pressure rises to a preset threshold value of an upper limit sensor, the pressure sensor 6 sends a sensing signal, the sensing signal is amplified by the transmitter and transmitted to the digital-to-analog converter, the sensing signal is converted into a low-level signal through D/A conversion and amplification, a motor driver is triggered to stop the operation of the feeding motor 15, and the feeding is stopped.
The bottom of the filling bin 5 is connected with a sealing sleeve 21, the sealing sleeve 21 is connected with a sealing wrench 9, the interior of the sealing wrench 9 is connected with a small bevel gear through a transmission shaft, the small bevel gear is connected with a bevel gear 8, the interior of the bevel gear 8 is connected with a sealing push sleeve 10, and the lower portion of the sealing push sleeve 10 is provided with a sealing rubber sleeve 11. When the pumping unit normally operates, the sealing wrench 9 does not need to be rotated, and the sealing rubber sleeve 11 is in a loosening state. When the sealing filler 3 needs to be replaced, the sealing wrench 9 is rotated to drive the bevel gear 8 to rotate through the transmission shaft, and the sealing pushing sleeve 10 is pressed downwards, so that the sealing rubber sleeve 11 is pressed tightly, the polished rod is tightly held, and sealing is enhanced.
The bottom of the sealing sleeve 21 is provided with a deviation adjusting device, the deviation adjusting device comprises a deviation adjusting ball 12, a universal adjusting sleeve 14 is arranged outside the deviation adjusting ball 12, and the upper end and the lower end of the deviation adjusting ball 12 are provided with locking sealing rings 22. The deviation-adjusting ball can be an anti-deviation-abrasion correcting universal joint, and the concentricity of the correcting polished rod and the sealing device can be adjusted through 360-degree overall movement and inclination.
Claims (4)
1. The utility model provides an intelligence wellhead sealing device, includes filler storehouse (5), its characterized in that: the packing bin (5) is internally provided with a sealing packing (3), the upper part of the sealing packing (3) is provided with a blowout prevention pressure cap (18), the side wall of the blowout prevention pressure cap (18) is connected with a blowout prevention ball jacket (19), a blowout prevention ball (1) is arranged in the blowout prevention ball jacket, the inner side of the blowout prevention ball (1) is in contact with a polished rod, and the outer side of the blowout prevention ball (1) is provided with a spring (20); a filler bin outer sleeve (17) is arranged outside the filler bin (5), a feeding device is connected to the filler bin outer sleeve (17), the feeding device comprises a storage box (16) and a worm and gear mechanism (4), filler connected with the sealing filler (3) is arranged in the storage box (16), a worm in the worm and gear mechanism (4) is connected with a feeding motor (15), and a worm gear is connected with the filler bin outer sleeve (17); the bottom of the filling bin (5) is connected with a sealing sleeve (21), the sealing sleeve (21) is connected with a sealing wrench (9), the interior of the sealing wrench (9) is connected with a bevel gear (8) through a transmission shaft, the interior of the bevel gear (8) is connected with a sealing push sleeve (10), and the lower part of the sealing push sleeve (10) is provided with a sealing rubber sleeve (11).
2. The intelligent wellhead sealing device according to claim 1, wherein: be equipped with pressure sensor (6) on filler storehouse (5) lateral wall, pressure sensor (6) gather the pressure signal in filler storehouse (5), when pressure reduces to the minimum of settlement, pressure sensor (6) send signal, control reinforced motor (15) after the digital analog converter conversion and start, when pressure risees to the maximum of settlement, pressure sensor (6) send signal, control reinforced motor (15) after the digital analog converter conversion and stop.
3. The intelligent wellhead sealing device according to claim 2, wherein: the bottom of the sealing sleeve (21) is provided with a deviation adjusting device, the deviation adjusting device comprises a deviation adjusting ball (12), a universal adjusting sleeve (14) is arranged outside the deviation adjusting ball (12), and the upper end and the lower end of the deviation adjusting ball (12) are respectively provided with a locking sealing ring (22).
4. The intelligent wellhead sealing device according to claim 3, wherein: and a thrust bearing (2) is arranged between the filler bin (5) and the filler bin outer sleeve (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023070295.XU CN214145437U (en) | 2020-12-18 | 2020-12-18 | Intelligent wellhead sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023070295.XU CN214145437U (en) | 2020-12-18 | 2020-12-18 | Intelligent wellhead sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214145437U true CN214145437U (en) | 2021-09-07 |
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ID=77588284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023070295.XU Active CN214145437U (en) | 2020-12-18 | 2020-12-18 | Intelligent wellhead sealing device |
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| Country | Link |
|---|---|
| CN (1) | CN214145437U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115638105A (en) * | 2022-12-24 | 2023-01-24 | 合肥皖液液压元件有限公司 | Gear pump capable of improving axial force balance |
-
2020
- 2020-12-18 CN CN202023070295.XU patent/CN214145437U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115638105A (en) * | 2022-12-24 | 2023-01-24 | 合肥皖液液压元件有限公司 | Gear pump capable of improving axial force balance |
| CN115638105B (en) * | 2022-12-24 | 2023-04-11 | 合肥皖液液压元件有限公司 | Gear pump capable of improving axial force balance |
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