CN2890416Y - Hydraulic sealing device of plunger pump - Google Patents
Hydraulic sealing device of plunger pump Download PDFInfo
- Publication number
- CN2890416Y CN2890416Y CN 200620000656 CN200620000656U CN2890416Y CN 2890416 Y CN2890416 Y CN 2890416Y CN 200620000656 CN200620000656 CN 200620000656 CN 200620000656 U CN200620000656 U CN 200620000656U CN 2890416 Y CN2890416 Y CN 2890416Y
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- plunger pump
- seal
- oil
- liquid
- cylinder
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- Expired - Fee Related
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Abstract
The utility model relates to a hydraulic sealing device of plunger pump, which adopts the automatic oiling pressure lubrication mode of a plunger pump to provide oil pressure for the plunger gasket ring and improve the plunger seal of the plunger pump. A sealing lubrication oiling cylinder is connected with the liquid outlet of the end of a plunger pump hydraulic. The sealing lubrication oiling cylinder comprises a piston and a piston rod. The piston divides the sealing lubrication oiling cylinder into a liquid chamber and an oil chamber. A liquid inlet and an oil outlet are provided on the two ends of the sealing lubrication oiling cylinder. The liquid inlet is connected with the liquid outlet of the plunger pump and the oil outlet is connected with the oil inlet of a plunger pump sealing device, which is installed between a combination gasket ring and a dustproof ring. The utility model passes the pressure of the plunger pump to the combination gasket ring of the plunger pump through the sealing lubrication oiling cylinder. Thus the pressure in the gasket ring is a little higher than that on the plunger pump hydraulic end, so as to prevent the mud from entering the gasket ring, reduce the friction between the gasket ring and the plunger, improve the service life of the plunger pump gasket ring and increase the use efficiency of the plunger pump.
Description
Technical field
The utility model relates to the seal arrangement of the special-purpose plunger pump of a kind of oil, uses the seal arrangement of plunger pump as drilling mud plunger pump, oil-field flooding.Be particularly related to a kind of employing plunger pump automatic oiling and press mode,, prolong plungers pump plunger a kind of device of sealing life for the plunger seal circle provides oil pressure lubricated.
Background technique
At present, the plunger pump characteristics that use in the oil field are: contain a large amount of particulate contamination in the pumped medium, in the mud as the conveying of drilling mud plunger pump, contain the fragmented rock particle; Contain a large amount of silts in the liquid that water-flooding pump for oil field is carried.Under pressure, the medium that contains granule foreign can enter in the seal ring, and the mud that is pumped and water all do not have lubricity.Therefore, the oil field uses the plunger seal circle of plunger pump to damage easily, ordinary circumstance, and turning round just needed to change the plunger seal circle of corrupted in 8-12 hour.So not only consume the seal ring accessory in a large number; And change the plunger seal circle and need termination of pumping, delay the construction operation time, have a strong impact on field produces.For this reason, the technician is raising plunger pump seal ring working life, has designed, developed the useful technological scheme in many raising seal ring life-spans.As Chinese patent, notification number is 2554405 pump composite structure sealing seat, utilizes exactly and inlays the macromolecular material lining in the hole, and the structure that the inwall of lining is established liquid storage tank in circumferencial direction solves short problem of seal ring life-span; Chinese patent and for example, notification number is 2589764 complex sealing ring, adopts complex sealing ring, comprises the engineering plastics basic ring of one side or double-sided belt annular groove, wherein the one side of basic ring or the two-sided non-asbestos fiber packing ring that is compounded with; Or at a composite material ring of engineering plastics basic ring.
These patented technologies improve sealing effect and play certain effect improving the plunger pump ring structure.But plunger pump is carried when containing the liquid of a large amount of silts, because seal ring has silt to enter in the seal ring without any the protective measures that stop silt to enter inevitably.In case silt enters in the seal ring, under the plunger to-and-fro motion, cause plunger wear, seal ring damages, and improves the seal ring DeGrain in working life.
The model utility content
The purpose of this utility model provides a kind of plunger pump hydraulic seal, make the pressure between combined seal ring and dust ring or combined seal ring and the guide ring, keep balance with plunger pump fluid power end pressure or, stop the silt in the pumping liquid to enter in the seal ring a little more than fluid end pressure.Do not have solid particle to enter between seal ring and the plunger, and oil lubrication is arranged, reduce the friction between seal ring and the plunger.Can also further reduce the friction between seal ring and the plunger for make-up oil between seal ring and the plunger.Reach the working life of improving the plunger pump seal ring, reduce and change seal ring, prolong the replacement cycle, improve the plunger pump utilization efficiency.
The technical solution adopted in the utility model is: the plunger pump hydraulic seal is to bring out at plunger pump fluid power to be connected with the liquid pipeline on the liquid mouth, and the liquid pipeline connects seal lubrication repairing cylinder.The structure of seal lubrication repairing cylinder is: cylinder ends is fixed with end cap, and piston and piston rod are arranged in the cylinder body.Piston is divided into liquid chamber and grease chamber's two-part with seal lubrication repairing cylinder interior.Piston rod passes oil end end cap central bore.The seal lubrication repairing cylinder the other end has liquid entering hole, on the oil end end cap oil outlet is arranged.Be connected with the liquid pipeline between seal lubrication repairing cylinder liquid entering hole and the plunger pump liquid outlet.Be connected with oil pipeline between seal lubrication repairing cylinder oil outlet and the plunger pump seal oil inlet hole.Plunger pump seal oil inlet hole is arranged between combined seal ring and the dust ring or between the combined seal ring.When the to-and-fro motion of plunger pump rod, the pressure in the plunger pump can pass to the liquid chamber of seal lubrication repairing cylinder by the liquid pipeline of liquid outlet; Promote piston, give the grease chamber propagation of pressure; Be delivered between the combined seal ring of plunger pump and the dust ring or between the combined seal ring by oil pipeline.Piston plays the double action of transmitting pressure and isolating two kinds of liquid.Like this between combined seal ring and the dust ring or the pressure between the combined seal ring, keep balance with plunger pump fluid power end pressure or a little more than fluid end pressure.During the to-and-fro motion of plunger pump rod, the granular silt in the medium can not enter in the seal ring, thereby reaches the purpose of the wearing and tearing that reduce seal ring.And, between seal ring and plunger pump rod, lubricant oil is arranged, lower the friction between seal ring and the plunger pump rod, improve the working life of seal ring.
In order between plunger pump seal and plunger pump rod, to preserve lubricant oil, can on the inwall of plunger pump seal, oil storage tank be arranged.Oil storage tank is arranged between combined seal ring and the dust ring or between the combined seal ring.The quantity of oil storage tank is 1 or 2.Each oil storage tank is to there being an oil inlet hole.
The cylinder body two ends of seal lubrication repairing cylinder are fixed with oil end end cap and liquid end end cap, and its means of fixation is that screwed connection is fixed.Between cylinder body and oil end end cap and the liquid end end cap seal ring is arranged.
Between the oil end end cap central bore of seal lubrication repairing cylinder and the piston rod seal ring is arranged.
On the oil pipeline between seal lubrication repairing cylinder oil end end cap and the plunger pump seal, be connected with the fluid infusion pipeline, on the fluid infusion pipeline one-way valve arranged.When seal lubrication is mended in-oil cylinder hydraulic oil loss is arranged, can be seal lubrication repairing cylinder grease chamber make-up oil by fluid infusion pipeline and one-way valve.
The beneficial effects of the utility model: the utility model plunger pump hydraulic seal, can the propagation of pressure of plunger pump be given between the combined seal ring and dust ring or combined seal ring and guide ring of plunger pump by seal lubrication repairing cylinder.Make the pressure between combined seal ring and dust ring or combined seal ring and the guide ring be slightly larger than plunger pump fluid power end pressure, stop the silt in the pumping liquid to enter in the seal ring, reduce the friction between seal ring and the plunger.Be make-up oil between seal ring and the plunger simultaneously, further reduce the friction between seal ring and the plunger.Improve the working life of plunger pump seal ring, prolong the seal ring replacement cycle, improve the plunger pump utilization efficiency.The utility model has bigger improvement on the plunger pump design of Sealing Structure, produced beyond thought effect.It is a new and innovative, progressive, practical new design.
Description of drawings
Accompanying drawing is the utility model structural profile schematic representation.It is embodiment's structural representation.For graphic simplicity, liquid pipeline and the oil pipeline that is connected between plunger pump and the seal lubrication repairing cylinder, and fluid infusion pipeline in the drawings adopts straight line to represent.
Among the figure, 1. plunger pump rod, 2. seal, 3. dust ring, 4. guide ring, 5. combined seal ring, 6. combined seal ring, 7. guide ring, 8. dust ring, 9. seal ring, 10. plunger case, 11. the plunger pump end cap, 12. end bracket enclosed circles, 13. liquid outlets, 14. the liquid outlet one-way valve, 15. liquid pipelines, 16. liquid entering holes, 17. liquid entering hole, 18. one-way valves, 19. pipelines, 20. oil inlet hole, 21. oil storage tanks, 22. oil pipelines, 23. one-way valve, 24. oil outlets, 25. piston rods, 26. seal ring, 27. oil end end caps, 28. cylinder bodies, 29. piston, 30. liquid end end caps, 31 seal rings.
Embodiment
The utility model is described in further detail below in conjunction with drawings and the specific embodiments.
Embodiment 1: consult accompanying drawing.The plunger pump hydraulic seal is to bring out at plunger pump fluid power that to be connected with diameter on the liquid mouth (13) be 10 millimeters liquid pipelines (15).Liquid pipeline (15) is connected liquid outlet one-way valve (14) before.Liquid pipeline (15) the other end connects the liquid entering hole (16) of seal lubrication repairing cylinder.The structure of seal lubrication repairing cylinder is: cylinder body (28) internal diameter is 50 millimeters, and length is 260 millimeters.Cylinder body (28) two ends are adopted screwed connection fixing oil end end cap (27) and liquid end end cap (30) respectively.Between cylinder body (28) and oil end end cap (27), the liquid end end cap (30) seal ring (31) is arranged.Piston (29) and piston rod (25) are arranged in the cylinder body (28).50 millimeters of piston (29) diameters.10 millimeters of piston rod (25) diameters, 220 millimeters of length.Piston (29) is divided into liquid chamber and grease chamber's two-part with seal lubrication repairing cylinder interior.Piston rod (25) passes oil end end cap (27) center hole.Between the center hole of oil end end cap dust ring (27) and the piston rod (25) seal ring (26) is arranged.Liquid entering hole (16) is arranged on the seal lubrication repairing cylinder liquid end end cap (30), on the oil end end cap (27) oil outlet (24) is arranged.Be connected with liquid pipeline (15) between seal lubrication repairing cylinder liquid entering hole (16) and the plunger pump liquid outlet (13).Be connected with oil pipeline (22) between the oil inlet hole (20) of seal lubrication repairing cylinder oil outlet (24) and plunger pump seal (2).The quantity of oil inlet hole (20) is 2.2 annular oil storage tanks (21) are arranged on the inwall of plunger pump seal (2).Oil storage tank (21) is arranged between combined seal ring (5,6) and combined seal ring (6) and the guide ring (7).Each oil storage tank (21) is to there being an oil inlet hole (20).On the oil pipeline (22) between seal lubrication repairing cylinder oil end end cap (27) and the plunger pump seal (2), be connected with the repairing pipeline, one-way valve (23) is arranged on the repairing pipeline.Other structure of plunger pump does not change.As: plunger pump comprises plunger pump rod (1), plunger case (10), plunger pump end cap (11) etc.In plunger pump seal (2), also have dust ring (3), dust ring (8).Seal (2) has seal ring (9) with the plunger case joint.Plunger pump end cap (11) has seal ring (12) with the plunger case joint.Liquid entering hole (17) is arranged on plunger pump seal (2), be connected with pipeline (19) one-way valve (18) on the liquid entering hole (17).
Embodiment 2: substantially the same manner as Example 1.Difference is: for easy to process, seal lubrication repairing cylinder one end has oil end end cap (27), and the seal lubrication repairing cylinder the other end has liquid entering hole (17) for the cylinder bottom of sealing on the cylinder bottom.Both cylinder body (28) was as a whole with liquid end end cap (30).
Claims (6)
1, a kind of plunger pump hydraulic seal, form by seal lubrication repairing cylinder and pipeline, it is characterized in that: bring out at plunger pump fluid power and be connected with liquid pipeline (15) on the liquid mouth (13), liquid pipeline (15) connects seal lubrication repairing cylinder, the structure of seal lubrication repairing cylinder is: cylinder body (28) end is fixed with end cap (27,30), piston (29) and piston rod (25) are arranged in the cylinder body (28), piston (29) is divided into liquid chamber and grease chamber's two-part with seal lubrication repairing cylinder interior, piston rod (25) passes oil end end cap (27) center hole, the seal lubrication repairing cylinder liquid the other end has liquid entering hole (16), on the oil end end cap (27) oil outlet (24) is arranged, be connected with liquid pipeline (15) between seal lubrication repairing cylinder liquid entering hole (16) and the plunger pump liquid outlet (13), be connected with oil pipeline (22) between the oil inlet hole (20) of seal lubrication repairing cylinder oil outlet (24) and plunger pump seal (2), plunger pump seal oil inlet hole (20) is arranged between combined seal ring (6) and the dust ring (8) or combined seal ring (5,6) between.
2, plunger pump hydraulic seal according to claim 1, it is characterized in that: oil storage tank (21) is arranged on the inwall of plunger pump seal (2), oil storage tank (21) is arranged between combined seal ring (5,6) or combined seal ring (6) and the guide ring (7), the quantity of oil storage tank (21) is 1 or 2, and each oil storage tank (21) is to there being an oil inlet hole (20).
3, plunger pump hydraulic seal according to claim 1, it is characterized in that: cylinder body (28) the two ends fixed oil end end caps (27) of seal lubrication repairing cylinder and liquid end end cap (30), its means of fixation is that screwed connection is fixed, and between cylinder body (28) and oil end end cap (27) and the liquid end end cap (30) seal ring (31) is arranged.
4, plunger pump hydraulic seal according to claim 1 is characterized in that: between oil end end cap (27) center hole of seal lubrication repairing cylinder and the piston rod (25) seal ring (26) is arranged.
5, according to claim 1,2,3 or 4 described plunger pump hydraulic seals, it is characterized in that: on the oil pipeline (22) between seal lubrication repairing cylinder oil end end cap (27) and the plunger pump seal (2), be connected with the repairing pipeline, one-way valve (23) is arranged on the repairing pipeline.
6, according to claim 1,2 or 4 described plunger pump hydraulic seals, it is characterized in that: seal lubrication repairing cylinder one end has oil end end cap (27), and the seal lubrication repairing cylinder the other end has liquid entering hole (17) for the cylinder bottom of sealing on the cylinder bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620000656 CN2890416Y (en) | 2006-01-11 | 2006-01-11 | Hydraulic sealing device of plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620000656 CN2890416Y (en) | 2006-01-11 | 2006-01-11 | Hydraulic sealing device of plunger pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2890416Y true CN2890416Y (en) | 2007-04-18 |
Family
ID=38021076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620000656 Expired - Fee Related CN2890416Y (en) | 2006-01-11 | 2006-01-11 | Hydraulic sealing device of plunger pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2890416Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102221456A (en) * | 2011-04-02 | 2011-10-19 | 瓯宝安防科技股份有限公司 | Sealing ring life test apparatus |
| CN102287367A (en) * | 2011-07-30 | 2011-12-21 | 郑国璋 | Sealing lubrication structure for plunger of ultrahigh pressure plunger pump |
| CN102913436A (en) * | 2012-10-18 | 2013-02-06 | 温州市森泰环保设备有限公司 | Safety mechanism of slurry hydraulic plunger pump |
| CN102927280A (en) * | 2012-11-02 | 2013-02-13 | 宁波合力机泵有限公司 | Circulation balance sealing box assembly of plunger pump |
| CN103244404A (en) * | 2013-05-15 | 2013-08-14 | 郑德忠 | Hydraulic seal slush pump |
-
2006
- 2006-01-11 CN CN 200620000656 patent/CN2890416Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102221456A (en) * | 2011-04-02 | 2011-10-19 | 瓯宝安防科技股份有限公司 | Sealing ring life test apparatus |
| CN102287367A (en) * | 2011-07-30 | 2011-12-21 | 郑国璋 | Sealing lubrication structure for plunger of ultrahigh pressure plunger pump |
| CN102287367B (en) * | 2011-07-30 | 2014-05-28 | 郑国璋 | Sealing lubrication structure for plunger of ultrahigh pressure plunger pump |
| CN102913436A (en) * | 2012-10-18 | 2013-02-06 | 温州市森泰环保设备有限公司 | Safety mechanism of slurry hydraulic plunger pump |
| CN102913436B (en) * | 2012-10-18 | 2016-05-25 | 温州市森泰环保设备有限公司 | A kind of release mechanism of mud hydraulic planger pump |
| CN102927280A (en) * | 2012-11-02 | 2013-02-13 | 宁波合力机泵有限公司 | Circulation balance sealing box assembly of plunger pump |
| CN102927280B (en) * | 2012-11-02 | 2015-07-08 | 宁波合力机泵有限公司 | Circulation balance sealing box assembly of plunger pump |
| CN103244404A (en) * | 2013-05-15 | 2013-08-14 | 郑德忠 | Hydraulic seal slush pump |
| CN103244404B (en) * | 2013-05-15 | 2016-12-28 | 北京万普隆能源技术有限公司 | Hydraulic seal slush pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070418 Termination date: 20100211 |