CN1363755A - Sealer for mouth of pumped oil well - Google Patents
Sealer for mouth of pumped oil well Download PDFInfo
- Publication number
- CN1363755A CN1363755A CN 00137203 CN00137203A CN1363755A CN 1363755 A CN1363755 A CN 1363755A CN 00137203 CN00137203 CN 00137203 CN 00137203 A CN00137203 A CN 00137203A CN 1363755 A CN1363755 A CN 1363755A
- Authority
- CN
- China
- Prior art keywords
- filler
- sealer
- housing
- pallet
- mouth
- 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.)
- Granted
Links
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- Gasket Seals (AREA)
- Details Of Valves (AREA)
Abstract
A sealer for the mouth of oil-pumping well is composed of upper filler, nut, casing divided into upper, middle and lower segments, and the spring, lower filler and tray installed in said middle segment. There is spiral guide slot on the inner surface of rod hole in lower filler. A spill port is communicated via said spiral guide slot with the pressure releasing guide valve and pressure meter. Said tray for supporting lower filler is between middle and lower segments. A correcting frame under the tray has the correcting rollers. Its advantages include compact structure, and long service life.
Description
The invention belongs to the oil field pumping unit, be mainly used in the well head sealing of the oil pumper in oil field.
The well head Sealing Technology of existing oil-field oil pumper mainly is to adopt around sucker rod to fill filler in a tubular shell that has sucker rod to pass through, and in the mode of filler upper body oral area with the nut pressurization.This structure can reach the effect of sealing, but, but exist many defectives, the one, owing to have only a last filler slipper seal that becomes with rubber processing to be enclosed within on the sucker rod, therefore add press fit with nut again, often make that pressure is uneven and accelerate the wearing and tearing of filler; The 2nd, because slipper seal is to the fineness of sucker rod and the concentricity of sucker rod and well head; also have the restriction of the conditions such as abrasion resistance of filler, easily make sucker rod and well head that friction takes place and damage or pull sucker rod, cause the filler quickening to scrap; thereby frequent shutdown is changed, and delays production.
The objective of the invention is to design between a kind of sucker rod and the well head and keep good concentricity, the sealing system long service life influences short sealer for mouth of pumped oil well of production time.
Task of the present invention is finished as follows, it comprises the housing of sealer, last filler and nut, it is characterized in that: housing is divided into upper, middle and lower three joints, symmetrical sucker rod is equipped with compression spring successively in the inner chamber of middle joint housing, following filler and pallet, following filler bar hole inwall is provided with logical spirality guiding gutter, following filler upper end is provided with the spill port that is communicated with guiding gutter, spill port be fixed on pallet on be arranged in joint housing one side release diaphragm valve and pressure meter be communicated with by oil guide groove, during pallet is connected in, between the lower punch section shell, pallet chamber internal upper part is supporting filler, its underpart is fixed with the support of setting upright of sucker rod, setting upright has the righting wheel of three symmetries to fix by wheel shaft on the support, the lower punch section shell lower end is a jointing.In order to have prevented that the people from stealing oil from well head, have additional a cover turbine worm structure in the nut periphery, and set up the outer cover of turbine worm structure in last joint housing one side, on outer cover, establish a special spanner hole.
It is long that the present invention has average life, compact conformation, good looking appearance, advantage easy to maintenance.
Fig. 1 is a structural representation of the present invention.
Drawing explanation: 1. save housing 10. pallets 11. lower punch section shells 12. in 7. times fillers of joint housing 5. compression springs, 6. spill ports, 8. oil guide groove 9. on the filler 4. on the nut 2. special spanner holes 3. and set upright support 13. wheel shafts 14. righting wheels 15. well head joints 16. diaphragm valves 17. guiding gutters 18. pressure meters 19. set bolts
In conjunction with above accompanying drawing concrete structure of the present invention is described further.The present invention includes the housing of sealer, last filler 3 and nut 1, housing is divided into upper, middle and lower three joints, and symmetrical sucker rod is equipped with compression spring 5, following filler 7 and pallet 10 successively in the inner chamber of middle joint housing 9.The bar hole inwall of following filler 7 is provided with spirality guiding gutter 17, following filler 7 upper ends are provided with spill port 6, spill port is communicated with guiding gutter, spill port also be fixed on pallet 10 on be arranged in joint housing 9 one sides release diaphragm valve 16 and pressure meter 18 be communicated with by oil guide groove 8, joint housing 9 and lower punch section shell 11 were middle during pallet 10 was connected in, pallet is supporting filler 7 under the taper at the chamber internal upper part, what the bottom was fixed with sucker rod sets upright support 12, setting upright the righting wheel 14 that three symmetries are arranged on the support is connected by wheel shaft 13, it is spacing in the center of housing that sucker rod is slided, and keeps higher concentricity.Lower punch section shell 11 lower ends are the joints 15 that are connected with well head.During work, there is a spot of crude oil to overflow on the following filler from oil return opening 6, make and form one deck oil film between sucker rod and the following filler, be in operation under the no state of wear, because the sealing function of last filler 3, in compression spring 5 residing cavity air chambers, produce back pressure, the crude oil that overflows on the following filler 7 will compress the energy storage cavity air chamber above it, when sucker rod descends, when well head pressure is lower than the pressure of this air chamber, oil flows back to down well head by unidirectional release diaphragm valve 16, have the release effect, and reduced the pressure of last filler, because being used of filler up and down, and proofreaied and correct sucker rod, can prolong 5-10 the application life of this sealer doubly.
In order to have prevented that the people from stealing oil from well head, have additional a cover turbine worm structure in the nut periphery, and set up the outer cover of turbine worm structure in last joint housing one side, on outer cover, establish a special spanner hole.Have only with special spanner and insert in the special spanner hole, the nut of turbine worm structure is laid down, it is convenient both to have replaced with filler, can prevent to put steathily crude oil again.
Claims (2)
1, a kind of sealer for mouth of pumped oil well, it comprises the housing of sealer, last filler and nut, it is characterized in that: housing is divided into upper, middle and lower three joints, symmetrical sucker rod is equipped with compression spring successively in the inner chamber of middle joint housing, following filler and pallet, following filler bar hole inwall is provided with the spirality guiding gutter of ganging up, following filler upper end is provided with spill port, spill port is communicated with guiding gutter, spill port also be fixed on pallet on be arranged in joint housing one side release diaphragm valve and pressure meter be communicated with by oil guide groove, save in the middle of housing and the lower punch section shell during pallet is connected in, pallet down filler in the inner chamber upper support, its underpart is fixed with the support of setting upright of sucker rod, setting upright has the righting wheel of three symmetries to fix by wheel shaft on the support, the lower punch section shell lower end is a jointing.
2, a kind of sealer for mouth of pumped oil well according to claim 1, it is characterized in that: the shape of following filler is tapered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00137203 CN1126857C (en) | 2000-12-30 | 2000-12-30 | Sealer for mouth of pumped oil well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00137203 CN1126857C (en) | 2000-12-30 | 2000-12-30 | Sealer for mouth of pumped oil well |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1363755A true CN1363755A (en) | 2002-08-14 |
| CN1126857C CN1126857C (en) | 2003-11-05 |
Family
ID=4597700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00137203 Expired - Fee Related CN1126857C (en) | 2000-12-30 | 2000-12-30 | Sealer for mouth of pumped oil well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1126857C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110374553A (en) * | 2019-07-23 | 2019-10-25 | 建湖县帅牛机械有限公司 | A kind of sucker rod of effectively anti-sway leakproof |
| CN112229564A (en) * | 2020-10-10 | 2021-01-15 | 天长市志昊机电配件有限公司 | Safety pressure gauge joint |
-
2000
- 2000-12-30 CN CN 00137203 patent/CN1126857C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110374553A (en) * | 2019-07-23 | 2019-10-25 | 建湖县帅牛机械有限公司 | A kind of sucker rod of effectively anti-sway leakproof |
| CN112229564A (en) * | 2020-10-10 | 2021-01-15 | 天长市志昊机电配件有限公司 | Safety pressure gauge joint |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1126857C (en) | 2003-11-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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 |