CN204571905U - Preventer carrying flashboard - Google Patents
Preventer carrying flashboard Download PDFInfo
- Publication number
- CN204571905U CN204571905U CN201520127246.5U CN201520127246U CN204571905U CN 204571905 U CN204571905 U CN 204571905U CN 201520127246 U CN201520127246 U CN 201520127246U CN 204571905 U CN204571905 U CN 204571905U
- Authority
- CN
- China
- Prior art keywords
- preventer
- flashboard
- carrying
- sucker rod
- seal
- 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
Abstract
The utility model discloses preventer carrying flashboard, one secondary preventer carrying flashboard (7) symmetry is arranged in blowout preventer body (6) inner chamber, the dovetail groove at preventer carrying flashboard (7) rear portion is connected with the T-slot of valve rod (4), valve rod (4) external screw thread is connected with valve gap (5) internal thread, sucker rod (3) is fixed in the middle of blowout preventer body (6) inner chamber by packing box, and carry flashboard (7) by preventer and embrace sucker rod (3), it is characterized in that: described preventer carrying flashboard (7) comprises gate panel body (1) and seal (2), seal (2) interference fit is arranged in the cylindrical groove of gate panel body (1), seal (2) excites Expansion sealing sucker rod (3) by torsional forces.Preventer carrying flashboard carrying rod weight of the present utility model, sealing sucker rod external diameter, and seal can be changed at any time, the sucker rod of sealing different size.
Description
Technical field
The utility model relates to preventer, is specifically related to a kind of preventer carrying flashboard.
Background technology
At present, there is following problem in the ram block that oil field is conventional: flashboard inside is smooth, does not have bearing function, when flashboard cuts out, incessantly sucker rod polished rod embraced by flashboard at all, and two rod collar places just can be suspended on the upper surface of ram block, and supporting capacity only has 2-3 ton; The seal of ram block can not play sealing function, when changing rod packing box, sucker rod is often needed to take out together with rod packing box, packing box seal could be changed, extend the oil producing operation time, improve operating cost, be unfavorable for the demand of oil producing operation, when ram block seal damages, whole ram block all needs to change; One secondary ram block only can be used on the sucker rod polished rod of same specification, does not have versatility, does not have standard, bring inconvenience to production operation, and it is unfavorable that maintenance brings.
Summary of the invention
The purpose of this utility model is: design a kind of preventer carrying flashboard, carry rod weight on the one hand, and sealing sucker rod external diameter, can change seal at any time on the other hand, the seal changed on flashboard can seal the sucker rod of different size.
Technical solution of the present utility model is: this preventer comprises preventer carrying flashboard, sucker rod, valve rod, valve gap and blowout preventer body, one secondary preventer carrying flashboard symmetry is arranged in blowout preventer body inner chamber, the preventer carrying dovetail groove at flashboard rear portion is connected with the T-slot of valve rod, valve rod external screw thread is connected with valve gap internal thread, mobile in the middle of blowout preventer body inner chamber by screw-driven preventer carrying flashboard, sucker rod is fixed in the middle of blowout preventer body inner chamber by packing box, and embrace sucker rod by preventer carrying flashboard, it is characterized in that: described preventer carrying flashboard comprises gate panel body and seal, the inner circle of gate panel body has 3 ACME longitudinal screws and 3ACME horizontal thread, this pitch is trapezoidal thread, 3ACME horizontal thread and 3 ACME longitudinal screws round-formed latticed blockage in gate panel body, seal interference fit is arranged in the cylindrical groove of gate panel body, seal excites Expansion sealing sucker rod by torsional forces.
The utility model has the following advantages:
1, preventer carrying flashboard in use, make two flashboards first placed in the middle by handwheel, due to preventer carrying flashboard having the trapezoidal pitch of ACME, pitch is large, such ram block would not make sucker rod polished rod have injured vestige on the surface in load bearing process, sucker rod sealing surface can not be made impaired, affect sealing effectiveness.
2, when sucker rod is ceaselessly reached the standard grade motion, the seal rapid wear sealing sucker rod in packing box certainly will be brought, this just needs to change seal, is closed by ram block, arrives certain moment of torsion with on torque wrench, ram block is made to embrace sucker rod polished rod inflexibly, then discharge sucker rod, born the weight of sucker rod by flashboard, the seal carried on flashboard passes through torsional forces simultaneously, excite the expansion of rubber parts, play the effect of sealing sucker rod polished rod.
3, when repairing preventing sucker rod spray box, sucker rod is not needed to take out together with blowout prevention box, as long as preventer cuts out, make preventer carry flashboard and embrace sucker rod, unclamp the suspender hanging sucker rod, sucker rod is embraced by flashboard, down can not slide, the weight of tens tons can be carried, simultaneously, do not need to close the valve bottom preventer, just can seal the pressure bottom well head yet.
4, seal and the gate panel body of preventer carrying flashboard are separable, without the need to changing whole flashboard, only needing the seal of replacing different size just can seal the sucker rod of different specifications, having bearing function simultaneously.
5, sucker rod is in running order, then preventer carries the position that flashboard is in out, if the sealed packing in the packing box of sucker rod damages, preventer carrying flashboard can be closed, change the sealed packing in the packing box of sucker rod, at this time, utilize preventer to carry flashboard and hang sucker rod, meanwhile, then excite preventer to carry the seal of flashboard to seal sucker rod, seal the pressure of wellbore bottom, reach the sealed packing changed in packing box.
6, preventer carrying flashboard adopts left-handed trapezoidal thread to connect the valve rod of preventer, and clockwise direction is "Off", is counterclockwise "ON", consistent with custom.
7, preventer carrying flashboard can carry rod weight, and sealing sucker rod external diameter, can change seal at any time, the seal changed on flashboard can seal the sucker rod of different size.
Accompanying drawing explanation
Fig. 1 is preventer carrying flashboard fundamental diagram.
Fig. 2 is preventer carrying flashboard structure figure.
Fig. 3 is the partial schematic diagram of Fig. 2 gate panel body.
Fig. 4 is that the B of Fig. 3 is to schematic diagram.
Fig. 5 is the seal schematic diagram of Fig. 2.
Fig. 6 is the A-A schematic diagram of Fig. 5.
Fig. 7 is that the C of Fig. 5 is to schematic diagram.
In figure: 1 gate panel body, 2 seals, 3 sucker rods, 4 valve rods, 5 valve gaps, 6 blowout preventer body, 7 preventer carrying flashboards.
Detailed description of the invention
As Fig. 1, shown in 2, this preventer comprises preventer carrying flashboard 7, sucker rod 3, valve rod 4, valve gap 5 and blowout preventer body 6, one secondary preventer carrying flashboard 7 symmetry is arranged in blowout preventer body 6 inner chamber, the dovetail groove at preventer carrying flashboard 7 rear portion is connected with the T-slot of valve rod 4, valve rod 4 external screw thread is connected with valve gap 5 internal thread, mobile in the middle of blowout preventer body 6 inner chamber by screw-driven preventer carrying flashboard 7, sucker rod 3 is fixed in the middle of blowout preventer body 6 inner chamber by packing box, and embrace sucker rod 3 by preventer carrying flashboard 7, it is characterized in that: described preventer carrying flashboard 7 comprises gate panel body 1 and seal 2, the inner circle of gate panel body 1 has 3 ACME longitudinal screws and 3ACME horizontal thread, this pitch is trapezoidal thread, 3ACME horizontal thread and 3ACME longitudinal screw be round-formed latticed blockage in gate panel body, seal 2 interference fit is arranged in the cylindrical groove of gate panel body 1, seal 2 excites Expansion sealing sucker rod 3 by torsional forces.
Claims (1)
1. preventer carrying flashboard, this preventer comprises preventer carrying flashboard (7), sucker rod (3), valve rod (4), valve gap (5) and blowout preventer body (6), one secondary preventer carrying flashboard (7) symmetry is arranged in blowout preventer body (6) inner chamber, the dovetail groove at preventer carrying flashboard (7) rear portion is connected with the T-slot of valve rod (4), valve rod (4) external screw thread is connected with valve gap (5) internal thread, mobile in the middle of blowout preventer body (6) inner chamber by screw-driven preventer carrying flashboard (7), sucker rod (3) is fixed in the middle of blowout preventer body (6) inner chamber by packing box, and carry flashboard (7) by preventer and embrace sucker rod (3), it is characterized in that: described preventer carrying flashboard (7) comprises gate panel body (1) and seal (2), the inner circle of gate panel body (1) has 3 ACME longitudinal screws and 3ACME horizontal thread, this pitch is trapezoidal thread, 3ACME horizontal thread and 3 ACME longitudinal screws round-formed latticed blockage in gate panel body, seal (2) interference fit is arranged in the cylindrical groove of gate panel body (1), seal (2) excites Expansion sealing sucker rod (3) by torsional forces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520127246.5U CN204571905U (en) | 2015-03-05 | 2015-03-05 | Preventer carrying flashboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520127246.5U CN204571905U (en) | 2015-03-05 | 2015-03-05 | Preventer carrying flashboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204571905U true CN204571905U (en) | 2015-08-19 |
Family
ID=53864559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520127246.5U Expired - Fee Related CN204571905U (en) | 2015-03-05 | 2015-03-05 | Preventer carrying flashboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204571905U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113503138A (en) * | 2021-09-07 | 2021-10-15 | 东营市海天石油科技有限责任公司 | Polished rod replacing device with pressure |
| CN110821438B (en) * | 2019-12-09 | 2024-04-05 | 天津轻工职业技术学院 | Blowout preventer for rod-driven screw pump oil extraction system |
-
2015
- 2015-03-05 CN CN201520127246.5U patent/CN204571905U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110821438B (en) * | 2019-12-09 | 2024-04-05 | 天津轻工职业技术学院 | Blowout preventer for rod-driven screw pump oil extraction system |
| CN113503138A (en) * | 2021-09-07 | 2021-10-15 | 东营市海天石油科技有限责任公司 | Polished rod replacing device with pressure |
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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 |
Granted publication date: 20150819 Termination date: 20170305 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |