CN2402873Y - Multifunctional polish rod sealer - Google Patents
Multifunctional polish rod sealer Download PDFInfo
- Publication number
- CN2402873Y CN2402873Y CN 98238975 CN98238975U CN2402873Y CN 2402873 Y CN2402873 Y CN 2402873Y CN 98238975 CN98238975 CN 98238975 CN 98238975 U CN98238975 U CN 98238975U CN 2402873 Y CN2402873 Y CN 2402873Y
- Authority
- CN
- China
- Prior art keywords
- packing
- cone
- blowout prevention
- level
- ring
- 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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Abstract
The utility model relates to a multifunctional polish rod sealer. A press cap 2 is connected with a blowout prevention body 3, and a blowout prevention plate 1 is hinged with the press cap 2 in the utility model; the lower surface of the blowout prevention plate 1 is provided with a big spring 4, and the outer layer of the blowout prevention plate 1 is orchid leather 5; the lower surface of the orchid leather 5 is provided with a conical helix first stage packing 7 and a conical helix two stage packing 10 which respectively match with a first stage cone 8 and a two stage cone 11, and a resetting sleeve 16 and a return spring 17 support the lower part of the two stage packing 10; a sliding block 19 is connected with the two stage cone 11 by screw threads. Because the utility model uses the blowout prevention plate, the two-stage cone and an offset structure, the well blowout can be efficiently prevented, and abrasion of packings can be automatically tightened; replacement is convenient and rapid, and entirety radical direction offset reduces the abrasion of the packings, which increases sealing effect.
Description
The utility model relates to a kind of aboveground polished rod sealer of oil-field oil pumper that is used for, particularly a kind of multifunctional polish rod sealing device.
Wellhead polish rod sealer is the important wellhead equipment that guarantees the pumping well ordinary production, at present the multiple pumping well wellhead sealing device of oil field field by using is in the oil well operating conditions not too under the complicated situation, can keep its excellent sealing performance mostly, guarantee the oil well ordinary production.Yet, under the comparatively complicated condition of severe of operating conditions such as viscous crude gas injection, often cause disconnected the taking off of polished rod easily and blowout take place, polished rod angle tuningout serious wear, packing is changed shortcomings such as difficulty, has a strong impact on its sealing effect, is unfavorable for the raising of the ordinary production and the manufacturing efficiency of oil well.
The purpose of this utility model is to provide a kind of multifunctional polish rod sealing device that has, and can guarantee that disconnected the taking off of oil well polished rod under various complicated mal-conditions prevents from blowout to reduce wear, and packing is changed fast convenient, improves the well head sealing effect.
The purpose of this utility model is to realize like this.This kind wellhead sealing device adopts the two-stage sealed packing, blowout prevention and with inclined to one side structure, its structure, the assembling feature is as follows: pressure cap (2) is connected with anti-sprinkler body (3), in it blowout prevention sheet (1) and pressure cap (2) hinge joint, be connected to loam cake (6) successively in anti-sprinkler body (3) below, one-level cone (8), overcoat (9), baffle ring (12), seal ring (13), pressure ring (14), lower cover (15), lower cover (15) is threaded with overcoat (9), the following of blowout prevention sheet (1) is big spring (4), its skin is leather blue (5), leather is a cone screw one-level packing (7) below blue (5), cone screw secondary packing (10), cooperate with one-level cone (8) and secondary cone (11) respectively, there is reseting sleeve (16) on the top below secondary packing (10), Returnning spring (17), slide block (19) is threaded with cone (11), on it big gland (18), and be threaded with bracing ring (23) and supportive body (24) successively, " O " type circle (20) is arranged in bracing ring (23), push jack (21), Packing spring (22).
When the oil well proper functioning, because tired disconnected taking off can take place in polished rod under the alternate load effect, make polished rod sealer lose seal action, at this moment the high-pressure oil gas fluid-mixing outwards sprays by part one-level packing (7) endoporus, the thrust that fluid-mixing spray body produces when penetrating makes blowout prevention part (1) to pressure cap (2) outlet (low pressure area) upset in blowout prevention sheet (1), and rapidly with pressure cap (2) outlet sealing, prevent the fluid ejection, realize the disconnected blowout prevention function of taking off of polished rod.
One-level packing (7) is the screw cone rubber parts, by endoporus and polished rod seal, male cone (strobilus masculinus) and one-level cone (8) sealing, realized the fundamental function of polished rod sealer sealing well head, when one-level packing (7) endoporus is increased by the polished rod wearing and tearing, leather blue (5) is subjected to the elastic force of big spring (4) to act on one-level packing (7) top and produces a pressure, promotes one-level packing (7) male cone (strobilus masculinus) and moves undergauge along one-level cone (8) taper hole, and one-level packing (7) endoporus is dwindled and polished rod seal.Secondary packing (10) is the screw cone rubber parts, when one-level packing (7) is changed, need close secondary packing (10) earlier, at first fix secondary cone (11), forward precession overcoat (9) drives one-level cone (8) then, produce a pressure on secondary packing (10) top, promote secondary packing (10) male cone (strobilus masculinus) and move undergauge, secondary packing (10) endoporus is dwindled and polished rod seal along secondary cone (11) taper hole.When one-level packing (7) installs, need to recover secondary packing (10) normally open.At first fix secondary cone (11), counterrotating overcoat (9) drives one-level cone (8) then, lay down the pressure to secondary packing (10), reseting sleeve this moment (13) promotes secondary packing (10) and resets under the elastic force effect of Returnning spring (17), not to polished rod seal.Tuningout structure slide block (19) can radially move freely in the chamber that big gland (18) and " O " type circle (20) seal, realize translation tuningout function, push jack (21) promotes " O " type circle (20) and slide block (19) sealing under Packing spring (22) elastic force effect, when polished rod is offset, the radial force that produces acts on slide block (19), the secondary cone (11) that under active force, is connected and other parts integral translation with slide block (19), prevented polished rod to one-level packing (7) eccentric wear, thereby improved the packing life-span.
The utility model prevents blowout effectively owing to adopted blowout prevention sheet, secondary cone and tuningout structure, and the packing wearing and tearing can tighten automatically, changes easily and fast, and overall radial translation tuningout reduces packing wearing and tearing raising sealing effect.
Accompanying drawing is a structural representation of the present utility model.
Below in conjunction with accompanying drawing the utility model is further specified.
The utility model is divided into three parts, blowout prevention part, hermetic unit and tuningout part, blowout prevention partly comprises blowout prevention sheet 1, pressure cap 2, anti-sprinkler body 3, big spring 4, leather blue 5, hermetic unit comprises that loam cake 6, one-level packing 7, one-level cone 8, overcoat 9, secondary packing 10, secondary cone 11, baffle ring 12, seal ring 13, pressure prevent blowout effectively, the packing wearing and tearing can tighten automatically, change easily and fast, overall radial translation tuningout reduces packing wearing and tearing raising sealing effect.
Accompanying drawing is a structural representation of the present utility model.
Below in conjunction with accompanying drawing the utility model is further specified.
The utility model is divided into three parts, the blowout prevention part, hermetic unit and tuningout part, blowout prevention partly comprises blowout prevention sheet 1, pressure cap 2, anti-sprinkler body 3, big spring 4, leather blue 5, hermetic unit comprises loam cake 6, one-level packing 7, one-level cone 8, overcoat 9, secondary packing 10, secondary cone 11, baffle ring 12, seal ring 13, pressure ring 14, lower cover 15, reseting sleeve 16, Returnning spring 17, the tuningout structure is by big gland 18, slide block 19, " O " type circle 20, push jack 21, Packing spring 22, bracing ring 23 and supportive body 24 are formed, slide block 19 can radially move freely in the chamber that big gland 18 and " O " type circle 20 seal, realize translation tuningout function, push jack 21 promotes " O " type circle 20 and slide block 19 sealings under Packing spring 22 elastic force effects.When polished rod was offset, the radial force of generation acted on slide block 19, and the secondary cone 11 that is connected with slide block 19 under active force and other parts integral translation have prevented polished rod to one-level packing 7 eccentric wears, thereby improved the packing life-span.
Claims (1)
1, a kind of multifunctional polish rod sealing device, it is by pressure cap (2), big spring (4), leather blue (5), loam cake (6), one-level packing (7), one-level cone (8), overcoat (9), secondary packing (10), secondary cone (11), baffle ring (12), seal ring (13), pressure ring (14), lower cover (15), reseting sleeve (16), Returnning spring (17), big gland (18) is formed, it is characterized in that: it also comprises blowout prevention sheet (1), anti-sprinkler body (3), slide block (19), " O " type circle (20), push jack (21), Packing spring (22), bracing ring (23) and supportive body (24) are formed, pressure cap (2) is connected with anti-sprinkler body (3), in it blowout prevention sheet (1) and pressure cap (2) hinge joint, be connected to loam cake (6) successively in anti-sprinkler body (3) below, one-level cone (8), overcoat (9), baffle ring (12), seal ring (13), pressure ring (14), lower cover (15), lower cover (15) is threaded with overcoat (9), the following of blowout prevention sheet (1) is big spring (4), its skin is leather blue (5), leather is a cone screw one-level packing (7) below blue (5), cone screw secondary packing (10), cooperate with one-level cone (8) and secondary cone (11) respectively, there is reseting sleeve (16) on the top below secondary packing (10), Returnning spring (17), slide block (19) is threaded with cone (11), on it big gland (18), and be threaded with bracing ring (23) and supportive body (24) successively, " O " type circle (20) is arranged in bracing ring (23), push jack (21), Packing spring (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98238975 CN2402873Y (en) | 1998-09-24 | 1998-09-24 | Multifunctional polish rod sealer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98238975 CN2402873Y (en) | 1998-09-24 | 1998-09-24 | Multifunctional polish rod sealer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2402873Y true CN2402873Y (en) | 2000-10-25 |
Family
ID=33986438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98238975 Expired - Fee Related CN2402873Y (en) | 1998-09-24 | 1998-09-24 | Multifunctional polish rod sealer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2402873Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106437597A (en) * | 2016-11-28 | 2017-02-22 | 墨宝股份有限公司 | Efficient, energy-saving and environment-friendly mechanical sealing device |
| CN115217435A (en) * | 2022-09-20 | 2022-10-21 | 胜利油田东强机电设备制造有限公司 | Polished rod sealing device with pressurization function for oil field |
-
1998
- 1998-09-24 CN CN 98238975 patent/CN2402873Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106437597A (en) * | 2016-11-28 | 2017-02-22 | 墨宝股份有限公司 | Efficient, energy-saving and environment-friendly mechanical sealing device |
| CN115217435A (en) * | 2022-09-20 | 2022-10-21 | 胜利油田东强机电设备制造有限公司 | Polished rod sealing device with pressurization function for oil field |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |