CN2844409Y - Thermal production well mouth is annotated and is taken out dual-purpose sealing device - Google Patents
Thermal production well mouth is annotated and is taken out dual-purpose sealing device Download PDFInfo
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- CN2844409Y CN2844409Y CN 200520016835 CN200520016835U CN2844409Y CN 2844409 Y CN2844409 Y CN 2844409Y CN 200520016835 CN200520016835 CN 200520016835 CN 200520016835 U CN200520016835 U CN 200520016835U CN 2844409 Y CN2844409 Y CN 2844409Y
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- well mouth
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Abstract
A kind of thermal production well mouth that is used for viscous crude heating exploitation oil well notes vapour, oil pumping process is annotated and is taken out dual-purpose sealing device.This device has designed three grades of hermetically-sealed constructions, adopts soft metal, three kinds of different seals of rubber and graphite, brings into play the characteristics of various encapsulants, solves the problem of the dynamic and static sealing of high pressure of thermal production well mouth.The first order of three grades of sealings adopts several tapered mesh skeleton graphite seals, mainly plays a role when annotating high steam; The mesh skeleton graphite seal is also adopted in second level sealing, works to ensure primary seal; The method that third level sealing adopts soft metal sealing ring and viton seal ring to be used at interval mainly plays a role when oil pumping.In use as required, adjust sealing friction tops at different levels, play the effect of sealing step by step, guarantee the safe and reliable of use, prolonged seal durability simultaneously.
Description
Technical field
The utility model relates to a kind of viscous crude heating exploitation pumpingh well well head and annotates vapour, the dual-purpose sealing device of pumping.
Background technology
The exploitation of viscous crude generally adopts the mode of annotating the high steam thermal recovery to carry out, and the well mouth sealing device that uses in the recovery process will bear high temperature when work, bear high pressure again.In a single day leakage failure taking place in the use, deal with very difficulty, causes serious economic loss easily, and environment is caused malignant pollution.There is the problem of unreasonable structure in the well mouth sealing device of Shi Yonging in the past; Its seal that adopts is materials such as rubber, graphite.This class material when the static sealing state effect still can, under the dynamic seal (packing) state in when oil pumping, just wearing and tearing easily, structure is unreasonable in addition, causes poorly sealedly easily, causes the generation of accident.
Summary of the invention
Annotate easy to wear, the unreasonable structure of taking out dual-purpose sealing device and cause poorly sealed deficiency in order to overcome existing thermal production well mouth, the utility model provide a kind of novel notes take out dual-purpose sealing device.This device has designed three grades of variform seal boxes, fuse by screw thread, adopt soft metal, three kinds of different encapsulants of rubber and graphite in the seal box, utilize the different sealing properties of materials architectural feature different with seal box, carry out sealing step by step, solve the problem of the dynamic and static sealing of thermal production well mouth high pressure.
The technical scheme that its technical problem that solves the utility model adopts is: adopt three grades of hermetically-sealed constructions, first order sealed inside is tapered, adopts several tapered mesh skeleton graphite seals, mainly plays a role when annotating vapour; The mesh skeleton graphite seal is also adopted in second level sealing, works to ensure primary seal; Third level sealing adopts soft metal sealing ring and viton seal ring to be used at interval, mainly plays a role when oil pumping.As required, adjust sealing friction tops at different levels during use, play the effect of sealing step by step.
The beneficial effects of the utility model are: three grades of hermetically-sealed constructions have guaranteed the safety of using, adopt different materials, bring into play soft metal encapsulant, rubber packing material and graphite sealing material characteristics separately, thereby improved the reliability of sealing, prolonged seal durability.Because mill resistance coefficient is little, also can prolong the application life of sucker rod.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified
Fig. 1 is the cross-sectional view of this utility model.
The tapered mesh skeleton graphite seal of 1-eccentric mount 2-supported flange 3-ejector spring 4-copper packing 5-6-mesh skeleton graphite seal 7-compresses three grades of hermetically sealed case 12-of copper sheathing 8-secondary clamping sleeve 9-one-level clamping sleeve 10-positioning sleeve 11-ring piece Extension Spring-type soft metal sealing ring 13-viton seal ring 14-and compresses copper sheathing 15-oil storage box (three grades of clamping sleeves) 16-ring piece Extension Spring-type soft metal sealing ring 17-and screw pressure cap 18-and rush down oil-piping layout among the figure
The specific embodiment
The supported flange (2) that has adjustable eccentric mechanism among Fig. 1 links to each other with thermal production well mouth, and eccentric mount (1) realizes and the centering of oil pumping polish rod by adjusting.The chamber structure of primary seal is designed to tapered, the tapered mesh skeleton graphite seal (5) of packing into, and cavity bottom is equipped with ejector spring (3) and copper packing (4).By screwing one-level friction top (9) extruding tapered mesh skeleton graphite seal (5) radial deformation, seal when annotating vapour.Unclamp one-level friction top (9), under the effect of bottom ejector spring (3), tapered graphite rubber seal (5) restores to the original state, depressurization.Secondary seal adopts graphite seal (6), screws when annotating vapour, compresses by compressing copper sheathing (7), cooperates the primary seal acting in conjunction.During oil pumping, suitably unclamp primary seal friction top (9), cancel the effect of tapered graphite rubber seal (5); Screw secondary seal friction top (8), the primary seal place is formed seal protection.Be used by fluorine rubber seal element (13) and ring piece Extension Spring-type soft metal seal (12) in the third level annular seal space, mainly when oil pumping, play a role, screw sealing friction top during use with oil storage box (15) one, by compressing copper sheathing (14) thrust is passed to seal, realizes sealing.The positioning sleeve of three grades of annular seal space bottoms (10) plays a location and sets upright.
Ring piece Extension Spring-type soft metal seal (12) has the function of automatic adjustment internal diameter of the seal ring, fluorine rubber seal element (13) can provide the elastic deformation amount, both cooperations can guarantee to encircle the radial contraction of piece Extension Spring-type soft metal seal (12), make it hold polished rod all the time tightly, realize sealing.Owing to contain sliding agent in the sealing ring material of soft metal, self-lubricating function is arranged, can reduce coefficient of friction, loss reduces wear.
Comparatively speaking, the fluorine rubber seal element (13) in the third level annular seal space is a consumable accessory, can change easily, only needs during replacing three grades of hermetically sealed cases (11) and oil storage box (15) are opened, and seal is disclosed replacing get final product.
The top of sealing device is connected with an oil storage box (15), and box is top-loaded with a ring piece Extension Spring-type soft metal seal circle (16), compresses by screwing pressure cap (17), can prevent to be taken out of by polished rod because of the crude oil of three grades of poorly sealed leakages.Oil storage box (15) is other to have one to rush down oil-piping layout (18), forms the mechanism that keeps a public place clean with oil storage box (15), ring piece Extension Spring-type soft metal seal circle (12).If any trapped fuel, can flow out in the oil storage box (15), can not pollute well head with rushing down oil-piping layout (18).
Claims (5)
1, a kind of thermal production well mouth of viscous crude heating exploitation is annotated and is taken out dual-purpose sealing device, and it is characterized in that: three grades of variform seal boxes fuse by screw thread, are equipped with soft metal, three kinds of different encapsulants of rubber and graphite in the seal box, compress sealing step by step.
2, thermal production well mouth according to claim 1 is annotated and is taken out dual-purpose sealing device, it is characterized in that: first order seal box internal construction is tapered, adopt several tapered mesh skeleton graphite seals, be used ring piece Extension Spring-type soft metal seal and fluorine rubber seal element in the third level seal box at interval.
3, thermal production well mouth according to claim 1 is annotated and is taken out dual-purpose sealing device, and it is characterized in that: first order seal box lower curtate has a copper packing and an ejector spring.
4, thermal production well mouth according to claim 1 is annotated and is taken out dual-purpose sealing device, and it is characterized in that: third level seal box friction top and oil storage box are connected as a single entity.
5, thermal production well mouth according to claim 4 is annotated and taken out dual-purpose sealing device, it is characterized in that: oil storage box is other to have one to rush down oil-piping layout, and ring piece Extension Spring-type soft metal seal is equipped with on box top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520016835 CN2844409Y (en) | 2005-04-19 | 2005-04-19 | Thermal production well mouth is annotated and is taken out dual-purpose sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520016835 CN2844409Y (en) | 2005-04-19 | 2005-04-19 | Thermal production well mouth is annotated and is taken out dual-purpose sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2844409Y true CN2844409Y (en) | 2006-12-06 |
Family
ID=37486361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520016835 Expired - Fee Related CN2844409Y (en) | 2005-04-19 | 2005-04-19 | Thermal production well mouth is annotated and is taken out dual-purpose sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2844409Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105089541A (en) * | 2015-08-24 | 2015-11-25 | 中国石油天然气股份有限公司 | Automatic compensation type gapless well mouth sealing device |
| CN107869313A (en) * | 2016-09-26 | 2018-04-03 | 中国石油化工股份有限公司 | A kind of hollow rod elevated-temperature seal attachment means and connection method |
| CN111894508A (en) * | 2020-08-13 | 2020-11-06 | 赵振军 | Thick oil thermal recovery well head sealing blowout preventer |
-
2005
- 2005-04-19 CN CN 200520016835 patent/CN2844409Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105089541A (en) * | 2015-08-24 | 2015-11-25 | 中国石油天然气股份有限公司 | Automatic compensation type gapless well mouth sealing device |
| CN107869313A (en) * | 2016-09-26 | 2018-04-03 | 中国石油化工股份有限公司 | A kind of hollow rod elevated-temperature seal attachment means and connection method |
| CN111894508A (en) * | 2020-08-13 | 2020-11-06 | 赵振军 | Thick oil thermal recovery well head sealing blowout preventer |
| CN111894508B (en) * | 2020-08-13 | 2022-05-27 | 赵振军 | Thick oil thermal recovery well head sealing blowout preventer |
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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: 20061206 Termination date: 20110419 |