CN2279475Y - Rod beam-pumping unit well head sealing apparatus - Google Patents
Rod beam-pumping unit well head sealing apparatus Download PDFInfo
- Publication number
- CN2279475Y CN2279475Y CN96251111U CN96251111U CN2279475Y CN 2279475 Y CN2279475 Y CN 2279475Y CN 96251111 U CN96251111 U CN 96251111U CN 96251111 U CN96251111 U CN 96251111U CN 2279475 Y CN2279475 Y CN 2279475Y
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- CN
- China
- Prior art keywords
- sucker rod
- seal ring
- sealing ring
- utility
- model
- 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 sealing apparatus with a sucker rod for a well head of a beam-pumping unit. The utility model is composed of a press cap, a press cover, and a multi-stage sealing ring. The utility model adopts the effective radical and longitudinal deformation generated when an umbrella-shaped sealing ring is pressed to store deformation energy to realize the effective seal between the sealing ring and the sucker rod. The inner side of the sealing ring is pressed with a chamfering or an annular lubricating groove, and therefore, the multistage lubricating function can be played through an annular space of a non contact part between the sealing ring and the sucker rod, which causes the service life of the sealing ring to be extended. A spring replaces the press cover to store the deformation energy, which maintains the effective seal between the sealing ring and the sucker rod. The utility model has the advantage of stable and reliable sealing performance. The popularization and the operation of the utility model brings more economic benefit to the development of an oil field.
Description
The utility model relates to a kind of sucker rod pumping motor-pumped well mouth sealing device.
In sucker rod pumping motor-pumped well mouth sealing device, adopt rectangular seal more or on the cylinder of the inside and outside garden of rectangular seal, be processed with the seal ring of chamfering, normally one group of seal ring is superimposed, be enclosed within on the sucker rod, when screwing pressure cap, make it produce radial deformation, and seal.Adopt seal ring simultaneously as number of patent application 93201729.0, can between seal ring and sucker rod, form multistage lubricated, multi-stage sealed, but because the transverse section of seal ring is vertical with center line, its amount of deformation is less, seal ring inefficacy easy to wear, it is more frequent to change seal ring, has influenced the continual and steady production of crude oil.
The purpose of this utility model, design a kind of working life that prolongs seal ring exactly, store the well mouth sealing device of more wear compensation amounts, discharge energy of deformation along with the fair wear and tear of seal ring automatically, and can play effective seal and lubrication, reduce power consumption.
The utility model is achieved in that it is made up of pressure cap, gland and a plurality of seal rings etc., and it makes umbrella-shaped structure with seal ring, and the oblique radius of umbrella shape seal ring is greater than the normal direction radius.Make it more be easy to generate radial deformation, increase the wear compensation amount, prolong effective sealing time.On seal ring, be processed with simultaneously inside and outside chamfering, make to form a plurality of annular spaces between seal ring and the polished rod, when the sucker rod to-and-fro motion, the oil in the well, gas, water are full of annular space automatically and form oil ring, play the self oiling effect, prolong the working life of seal ring.Seal ring also can become be processed with an annular lubrication groove on the cylinder of interior garden, forms an annular space between annular lubrication groove and the sucker rod.The lubricated space of annular is arranged between seal ring and the sucker rod.A plurality of seal rings stack and form multistage lubricated, multi-stage sealed device.Gland can replace with spring, and with further storage energy of deformation, along with the wearing and tearing of seal ring, spring can keep automatically seal ring being exerted pressure incessantly, makes seal ring and sucker rod keep excellent sealing.
Describe in detail below in conjunction with Figure of description.
Accompanying drawing 1 is a sectional drawing of the present utility model.
Accompanying drawing 2 is the sectional drawing of the utility model seal ring.
Accompanying drawing 3 is an another kind of sectional drawing of the present utility model.
With reference to accompanying drawing 1, accompanying drawing 2, the utility model is a kind of sucker rod pumping motor-pumped well mouth sealing device of being made up of pressure cap, gland and multi-stage sealed circle etc., and seal ring (1) is a umbrella-shaped structure in this device, i.e. umbrella shape seal ring, the oblique radius (R of umbrella shape seal ring
2) greater than normal direction radius (R
1).On the cylinder of the inside and outside garden of umbrella shape seal ring, be processed with chamfering, when screwing pressure cap (3), gland (4) compresses seal ring one by one, under pressure, the umbrella shape seal ring produce bigger radially, linear deformation, realize the effective sealing between seal ring and the sucker rod.Simultaneously form annular space between the interior chamfering of seal ring and the sucker rod, be full of profit in it and form multistage oil ring, realizes multistage lubricating, multi-stage sealed, thus prolonged working life of seal ring effectively.But the wearing and tearing of seal ring exist, and along with the continuous wearing and tearing of seal ring, seal ring can automatically discharge energy of deformation, when the energy of deformation of seal ring when having discharged, can continue to screw pressure cap.Because the umbrella shape seal ring is big than rectangular seal wear compensation amount, so the Acceptable life of umbrella shape seal ring is longer.
With reference to accompanying drawing 3, the gland with in the sucker rod pumping motor-pumped well mouth sealing device replaces with spring, because the resiliently deformable of spring can store the certain deformation energy, constantly oppresses it along with the wearing and tearing of seal ring and makes its distortion, keep sealing, prolong the working life of seal ring.
The utility model owing to adopt the umbrella shape seal ring, increases the resiliently deformable of seal ring, has stored more wear compensation amount, and its effective storage life is prolonged, and its multi-stage sealed, multistage lubricated effect has also prolonged working life of seal ring effectively.Replace gland with spring, also increase resiliently deformable.The garden cylinder is processed with the seal ring of ring-type groove in using, and its radial impermeability is better, has both strengthened sealing effect, has sealed oil, gas, water, prolongs the working life of seal ring again.
Claims (5)
1, a kind of sucker rod pumping motor-pumped well mouth sealing device of being made up of pressure cap, gland and multi-stage sealed circle is characterized in that seal ring is a umbrella-shaped structure, the oblique radius (R of umbrella shape seal ring
2) greater than normal direction radius (R
1).
2, sucker rod pumping motor-pumped well mouth sealing device according to claim 1, in it is characterized in that on the umbrella shape seal ring, being processed with chamfering and outside chamfering.
3, sucker rod pumping motor-pumped well mouth sealing device according to claim 1 is characterized in that gland is a spring.
4, sucker rod pumping motor-pumped well mouth sealing device according to claim 1 is characterized in that having the lubricated space of annular between seal ring and sucker rod.
5, a kind of sucker rod pumping motor-pumped well mouth sealing device of being made up of pressure cap, gland and multi-stage sealed circle is characterized in that seal ring is processed with annular lubrication groove on the cylinder of garden within it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96251111U CN2279475Y (en) | 1996-12-31 | 1996-12-31 | Rod beam-pumping unit well head sealing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96251111U CN2279475Y (en) | 1996-12-31 | 1996-12-31 | Rod beam-pumping unit well head sealing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2279475Y true CN2279475Y (en) | 1998-04-22 |
Family
ID=33921682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96251111U Expired - Fee Related CN2279475Y (en) | 1996-12-31 | 1996-12-31 | Rod beam-pumping unit well head sealing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2279475Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090504A (en) * | 2015-08-31 | 2015-11-25 | 成都欧林生物科技股份有限公司 | Improved sealing device structure capable of preventing air leakage at detection opening |
| CN110238260A (en) * | 2019-05-17 | 2019-09-17 | 长沙理工大学 | A kind of sheet metal multistage cylinder drawing and forming device and technique |
-
1996
- 1996-12-31 CN CN96251111U patent/CN2279475Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090504A (en) * | 2015-08-31 | 2015-11-25 | 成都欧林生物科技股份有限公司 | Improved sealing device structure capable of preventing air leakage at detection opening |
| CN110238260A (en) * | 2019-05-17 | 2019-09-17 | 长沙理工大学 | A kind of sheet metal multistage cylinder drawing and forming device and technique |
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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 |