CN201554631U - Combined plunger anti-seize oil well pump - Google Patents
Combined plunger anti-seize oil well pump Download PDFInfo
- Publication number
- CN201554631U CN201554631U CN2009202287725U CN200920228772U CN201554631U CN 201554631 U CN201554631 U CN 201554631U CN 2009202287725 U CN2009202287725 U CN 2009202287725U CN 200920228772 U CN200920228772 U CN 200920228772U CN 201554631 U CN201554631 U CN 201554631U
- Authority
- CN
- China
- Prior art keywords
- seal ring
- ring
- oil well
- pump
- combined plunger
- 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
Images
Landscapes
- Details Of Reciprocating Pumps (AREA)
Abstract
The utility model discloses a combined plunger anti-seize oil well pump which pertains to oil extraction equipments of crude oil machinery in oil industry. The adopted technical scheme is as follows: a soft seal ring and a hard seal ring are protected in an oblique annular rail which is formed by connecting bearing rings in series; the soft seal ring and the hard seal ring can contract in down stroke of the pump and reduce the down stroke resistance of the pump; and the soft seal ring is internally provided with a spring so as to automatically compensate abrasion. The combined plunger anti-seize oil well pump solves the problems that the soft/hard seal ring combined plunger oil well pump or the soft seal ring combined plunger oil well pump has high down stroke resistance, and the soft seal ring and the hard seal ring are easily broken and have short service life; and the reliability of the pump is improved, and the service life of the pump is prolonged.
Description
Technical field
The utility model belongs to petroleum industry crude oil machine instruction statement mining oil equipment, refers more particularly to a kind of rod pumping pump that is applicable to the exploitation that contains sand oil well and easy fouling oil well.
Background technique
Chinese patent ZL 03254271.2 discloses a kind of type combined plunger anti-sticking oil well pump, be big for solving conventional oil well pump gap leaking loss, the problem of easy holddown designs when using in containing sand oil well and easy fouling oil well, this pump is mainly by pump barrel, standing valve, and the combined plunger of soft and hard seal combination is formed.Be characterized in, respectively there is a unsteady wiper ring at the combined plunger two ends of soft and hard seal combination, upper and lower delivery connection, the upper and lower valve that moves about, the middle part connects a plunger body, the a plurality of supporting rings of its outer wall suit, the supporting ring outside a plurality of unsteady hard seal rings of alternate installation and soft seal ring are formed the plunger seal section.This pump pump efficiency height is difficult for holddown in actual applications, but the soft seal ring also is close to the pump barrel inwall under fluid power load when this pump plunger is descending, surface friction drag is bigger, when hard seal ring and soft seal ring are up and down, easily deviate from, cause early stage damage from the gap of supporting ring and pump barrel.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned drawback, provides a kind of descending resistance little, reliability height, the combined plunger anti-sticking oil well pump that the life-span is long.
The purpose of this utility model is achieved in that a kind of combined plunger anti-sticking oil well pump, comprise by pump barrel, standing valve and combined plunger assembly, on the combined plunger assembly, the last delivery connection at following two ends and following delivery connection are set with a wiper ring, last delivery connection lower end and following delivery connection upper end connect a traveling valve respectively, the plunger mandrel is connected between two traveling valves, alternate a plurality of supporting ring I and the supporting ring II of being with on the plunger mandrel outer wall, baffle ring of suit bottom, a plurality of hard seal rings and soft seal ring are installed in the ring track in the supporting ring I and the supporting ring II outside, and annular spring is loaded in the inner chamber of soft seal ring.
Hard seal ring is a thin wall circular, and garden and lower end endoporus all have a chamfering outside the upper end, and sidewall has R-joining.
The soft seal ring is ring dress thing, and there is outer chamfering the upper end, and the lower end becomes outer garden cambered surface, and inwall has an annular cavity, has R-joining on the sidewall.
Combined plunger anti-sticking oil well pump provided by the utility model compared with prior art has following advantage:
1. hard seal ring and soft seal ring are difficult for deviating from track and damage when plunger upward and downward.Improve reliability, prolonged working life.
2. during the plunger down stroke, soft seal ring and the hard equal undergauge of seal ring, surface friction drag is little.
3. wear extent soft, hard seal ring all can be compensated, and good sealing effect makes pump keep the high pump efficiency operation for a long time.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the utility model sealing configuration part enlarged view.
Fig. 3 is the hard seal ring structure schematic representation of the utility model.
Fig. 4 is the utility model soft seal ring structure schematic representation.
Embodiment
General structure of the present utility model is as shown in Figure 1: a kind of combined plunger anti-sticking oil well pump, comprise by pump barrel 1, standing valve 13 and combined plunger assembly 17, on the combined plunger assembly 17, on the following two ends, following delivery connection 2,12 are set with a wiper ring 3, last delivery connection 2 lower ends and following delivery connection 12 upper ends connect a traveling valve 4 respectively, plunger mandrel 5 is connected between two traveling valves 4, alternate a plurality of supporting ring I6 and the supporting ring II10 of being with on plunger mandrel 5 outer walls, baffle ring 11 of suit bottom, a plurality of hard seal rings 7 and soft seal ring 8 are installed in the ring track 18 in the supporting ring I6 and the supporting ring II10 outside, annular spring 9 is loaded in the inner chamber of soft seal ring 7, forms combined plunger assembly 17.
The utility model hermetic unit and hard seal ring and soft seal ring structure are shown in Fig. 2-4:
Supporting ring I6 and supporting ring II10 make for the high-hardness corrosion-resistant metal, supporting ring I6 middle part is a through hole, oblique angle of the downward-sloping one-tenth of the part that upper end diameter is big, supporting ring II10 middle part is a through hole, the upper-end surface is inclined upwardly into a concave arc surface, oblique angle of downward-sloping one-tenth, lower end surface, hard seal ring 7 is installed in the parallel downward-sloping ring track interior 18 that two supporting ring I6 join and form, soft seal ring 8 is installed in a supporting ring I6 and supporting ring II10 and joins in the ring track 18 that forms, on, the lower end surface is surrounded by a downward inclined-plane and an arc surface that makes progress respectively, and soft seal ring 8 and track inwall radially assemblage gap are 0.5mm.
The ring dress thing that soft seal ring 8 is made for composite plastic, there is outer chamfering the upper end, the outer garden of one-tenth, lower end cambered surface, inwall has an annular cavity 16, the R-joining that to have a width on the sidewall be 0.1～0.2mm.
Working principle of the present utility model is as follows: when pump work during in up stroke, the up hard seal ring 7 of plunger is under the effect of fluid power and frictional force, move down along ring track 8, the chamfering inclined-plane of its endoporus lower end and the lower inclined plane of ring track 18 are fitted, hard seal ring radially opens along R-joining 14, and outer wall is adjacent to the pump barrel inwall and forms sealing.Simultaneously, soft seal ring 8 is close to the pump barrel inwall and is formed sealing under fluid power and annular spring 9 tension force effects, therefore, and good sealing effect.When pump work during in down stroke, plunger is descending, and hard seal ring 7 is up, along the inside slippage of ring track 18 inclined downward, radially along R-joining 14 slippages and shrink, reduces surface friction drag.Simultaneously, the soft seal ring is under the fluid power effect, and the chamfering of upper end along the inside slippage of ring track 18 inclined downward, radially along R-joining 15 slippages and shrink, reduces the frictional force with the pump barrel inwall, thereby reduces the descending resistance of plunger.Soft seal ring 8 external diameters wearing and tearing back can compensate under the tension force of annular spring 9.
Claims (3)
1. combined plunger anti-sticking oil well pump, comprise by pump barrel (1), standing valve (13) and combined plunger assembly (17), on the combined plunger assembly (17), the last delivery connection (2) and the following delivery connection (12) at following two ends are set with a wiper ring (3), last delivery connection (2) lower end and following delivery connection (12) upper end connect a traveling valve (4) respectively, plunger mandrel (5) is connected between two traveling valves (4), it is characterized in that: alternate a plurality of supporting ring I (6) and the supporting ring II (10) of being with on plunger mandrel (5) outer wall, a baffle ring of suit (11) bottom, a plurality of hard seal rings (7) and soft seal ring (8) are installed in the ring track (18) in the supporting ring I (6) and supporting ring II (10) outside, and annular spring (9) is loaded in the inner chamber of soft seal ring (7).
2. combined plunger anti-sticking oil well pump according to claim 1 is characterized in that, hard seal ring (7) is a thin wall circular, and garden and lower end endoporus all have a chamfering outside the upper end, and sidewall has R-joining (14).
3. combined plunger anti-sticking oil well pump according to claim 1 is characterized in that, soft seal ring (8) is ring dress thing, and there is outer chamfering the upper end, and the lower end becomes outer garden cambered surface, and inwall has an annular cavity (16), has R-joining (15) on the sidewall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202287725U CN201554631U (en) | 2009-10-10 | 2009-10-10 | Combined plunger anti-seize oil well pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202287725U CN201554631U (en) | 2009-10-10 | 2009-10-10 | Combined plunger anti-seize oil well pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201554631U true CN201554631U (en) | 2010-08-18 |
Family
ID=42614312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202287725U Expired - Fee Related CN201554631U (en) | 2009-10-10 | 2009-10-10 | Combined plunger anti-seize oil well pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201554631U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286273A (en) * | 2015-06-01 | 2017-01-04 | 中国石油化工股份有限公司 | A kind of combination type hard sealed plunger structure |
| CN108661610A (en) * | 2018-03-22 | 2018-10-16 | 建湖隆新石油机械有限公司 | Oil well pump is scraped on a kind of oilfield tubular |
| CN109577917A (en) * | 2019-01-15 | 2019-04-05 | 中国石油天然气股份有限公司 | Scale removal and anti-sticking oil pumping device for ternary composite oil displacement well |
| CN110617212A (en) * | 2019-11-12 | 2019-12-27 | 青岛新胜石油机械有限公司 | Plunger, anti-scaling tubular oil well pump and oil pumping system |
| CN111608904A (en) * | 2020-05-27 | 2020-09-01 | 青岛新胜石油机械有限公司 | Flexible sealing plunger pump |
| CN116398422A (en) * | 2023-06-09 | 2023-07-07 | 克拉玛依胜利高原机械有限公司 | Injection-production integrated anti-blocking rod pump |
-
2009
- 2009-10-10 CN CN2009202287725U patent/CN201554631U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286273A (en) * | 2015-06-01 | 2017-01-04 | 中国石油化工股份有限公司 | A kind of combination type hard sealed plunger structure |
| CN108661610A (en) * | 2018-03-22 | 2018-10-16 | 建湖隆新石油机械有限公司 | Oil well pump is scraped on a kind of oilfield tubular |
| CN108661610B (en) * | 2018-03-22 | 2021-12-07 | 建湖隆新石油机械有限公司 | Oil field tubular upper scraping oil well pump |
| CN109577917A (en) * | 2019-01-15 | 2019-04-05 | 中国石油天然气股份有限公司 | Scale removal and anti-sticking oil pumping device for ternary composite oil displacement well |
| CN110617212A (en) * | 2019-11-12 | 2019-12-27 | 青岛新胜石油机械有限公司 | Plunger, anti-scaling tubular oil well pump and oil pumping system |
| CN111608904A (en) * | 2020-05-27 | 2020-09-01 | 青岛新胜石油机械有限公司 | Flexible sealing plunger pump |
| CN116398422A (en) * | 2023-06-09 | 2023-07-07 | 克拉玛依胜利高原机械有限公司 | Injection-production integrated anti-blocking rod pump |
| CN116398422B (en) * | 2023-06-09 | 2023-09-01 | 克拉玛依胜利高原机械有限公司 | Injection-production integrated anti-blocking rod pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201554631U (en) | Combined plunger anti-seize oil well pump | |
| CN202483507U (en) | High-pressure sealing rubber barrel assembly | |
| CN101469700A (en) | External valve type hydraulic self-sealing plunger oil-well pump | |
| CN201896729U (en) | Gas-proof load-reducing deep well defueling pump | |
| CN203685552U (en) | Oil pump capable of preventing oil from leaking from clearance between piston and pump cylinder | |
| CN102425396B (en) | A kind of sucker-rod pump oil extraction system for oil well | |
| CN202483854U (en) | Efficient oil well pump with variable diameter | |
| CN201794536U (en) | Wash pipe assembly of top drive drilling equipment | |
| CN104819139A (en) | Dual-load-shedding air-proof oil well pump | |
| CN104196714B (en) | Oil field plunger oil-well pump Dynamic Seal combination plunger assembly | |
| CN101825083B (en) | Flexible combined oil pump plunger piston | |
| CN210343815U (en) | Flexible shaft transmission type deep well submersible pump with multiple water outlets | |
| CN102022310B (en) | Low-differential-pressure synchronous dual-fixed-valve deep-well pump | |
| CN209261798U (en) | Valve body of fracturing pump | |
| CN100412368C (en) | Efficient reversed beam-pumping unit | |
| CN202039791U (en) | Built-in fixed sucker rod centralizer | |
| CN204041435U (en) | Oil field plunger oil-well pump Dynamic Seal combination plunger assembly | |
| CN201155448Y (en) | External valve type hydraulic self-sealing plunger oil pump | |
| CN202157953U (en) | Load-reduction sucker rod string | |
| CN201982285U (en) | Soft seal plunger oil well pump | |
| CN106837233B (en) | Oil mine pore sealing device and its involving swab encapsulating method | |
| CN203499965U (en) | Double-layer self-sealing overlength stroke oil well pump | |
| CN205243753U (en) | Novel slush pump | |
| CN204200606U (en) | A kind of deep water pump | |
| CN204041434U (en) | The Dynamic Seal combination plunger assembly of oil field plunger oil-well pump with protective gear |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100818 Termination date: 20181010 |