CN201110160Y - Combined reverse-filling resistance oil nozzle sleeve - Google Patents
Combined reverse-filling resistance oil nozzle sleeve Download PDFInfo
- Publication number
- CN201110160Y CN201110160Y CNU2007200296383U CN200720029638U CN201110160Y CN 201110160 Y CN201110160 Y CN 201110160Y CN U2007200296383 U CNU2007200296383 U CN U2007200296383U CN 200720029638 U CN200720029638 U CN 200720029638U CN 201110160 Y CN201110160 Y CN 201110160Y
- Authority
- CN
- China
- Prior art keywords
- oil nozzle
- valve
- seat
- chimney
- pours
- 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 combined type anti-reverse irrigation choke sleeve, which comprises a casing body, a choke and an inverted valve, wherein the choke and the inverted valve are mounted in the casing body in turn, the inverted valve comprises a stabilizing tube which is connected with the casing body, a valve base and a valve body which are connected with the stabilizing tube in turn, valve cores are mounted in the valve base and the valve body, and a spring is mounted between the valve core and the valve body. The choke and the inverted valve of the utility model are integrally designed. The combined type anti-reverse irrigation choke sleeve has the advantages of small volume and convenient manufacture, installation, operation and maintenance, which can control pressure on well mouths and prevent reverse irrigation, and can be widely applied in bergol extracting well mouths.
Description
One, technical field
The utility model relates to the oil production equipment of petroleum industry, the anti-oil nozzle cover that pours in down a chimney of particularly a kind of combined type.
Two, background technology
On the rod-pumped well of petroleum industry, the oil nozzle cover is installed producing between valve and the back pressure valve, be used to control oil pressure, at back-pressure valve ball-and-seat is installed behind the door on the pipeline of face and is used to prevent that liquid in the pipeline from pouring in down a chimney enters in the well.The sheathed double-decker that can carry out thermal cycle of counting of original oil nozzle, but along with continually developing of oil field, bigger variation has taken place in crude oil production process, do not needed to carry out thermal cycle, also just make original oil nozzle cover no longer bring into play original effect, the complicated cost height of simultaneously traditional oil nozzle nested structure causes the waste of resource.And on-the-spot ball-and-seat that uses and oil nozzle cover are two covering devices of split, ball-and-seat is again a welded structure, be prone to the fault of damaging or losing efficacy in the use, cause that oil well pours in down a chimney phenomenon and just need repair and change, change if repair, then need to stop well, blow-down pipe, employ electrogas welding and repair and change, expended time in 2～3 hours.If to run into pipeline long, be difficult for the well of emptying, meeting consuming time is longer, rate and crude output when having had a strong impact on the driving a well of oil well.
Three, summary of the invention
The purpose of this utility model provides the anti-oil nozzle cover that pours in down a chimney of a kind of combined type, adopt oil nozzle cover and ball-and-seat integrated design, the shortcoming or the deficiency that had both overcome effectively or avoided existing in the above-mentioned prior art, rate and crude output in the time of can improving the driving a well of oil well again effectively.
The anti-oil nozzle cover that pours in down a chimney of combined type described in the utility model, comprise housing, oil nozzle and ball-and-seat, oil nozzle and ball-and-seat are installed in the housing in turn, ball-and-seat comprises setting upright tube, setting upright a valve seat and a valve body that tin is connected in turn with this of being connected with housing, the spool of installing in valve seat and the valve body is equipped with spring between spool and the valve body.
Wherein, described housing one end is provided with jointing clip, and clip is provided with the oil nozzle installing hole with the ball-and-seat installation step and be connected internal thread, and the middle part is provided with oil outlet, and the other end is provided with internal thread.The described circumference of setting upright tube one end face is provided with axial flowing hole and centre bore.The circumference of described valve body one end face is provided with axial flowing hole and centre bore.Described valve seat is a hollow structure, and the one end is provided with inner conical surface.Described spool is that two ends are cylinder, and middle this column is in valve seat in order to be provided with the column of outer conical surface, and its male cone (strobilus masculinus) matches with the valve seat inner conical surface, and the cylinder end at two ends is slidingly matched in the centre bore of setting upright tube and valve body respectively.
The utility model has the following advantages compared with prior art:
1, the utility model is combined oil nozzle and ball-and-seat, is installed in the place of former installation oil nozzle, and oil nozzle in the housing and ball-and-seat can both be changed and keep in repair by the mode of dismounting.
2, the ball-and-seat that damages is checked timely, changed, obvious to the anti-effect of pouring in down a chimney of oil well.
3, simple to operate, the engineering time is of short duration, has effectively improved production efficiency.
4, simple in structure, easy to manufacture, cost is low, can be widely used in the well head of various oil wells.
Four, description of drawings
Accompanying drawing is a kind of structural representation of the present utility model.
Five, the specific embodiment
Consult accompanying drawing, the anti-oil nozzle cover that pours in down a chimney of a kind of combined type, comprise housing, oil nozzle and ball-and-seat, oil nozzle and ball-and-seat are installed in the housing in turn, ball-and-seat comprises setting upright tube 2, setting upright a valve seat 3 and a valve body 4 that tin is connected in turn with this of being connected with housing 7, the spool of installing in valve seat and the valve body 5 is equipped with spring 6 between spool and the valve body.
Claims (6)
1, the anti-oil nozzle cover that pours in down a chimney of a kind of combined type, comprise housing, oil nozzle and ball-and-seat, it is characterized in that being equipped with in turn in the housing oil nozzle and ball-and-seat, ball-and-seat comprises setting upright tube, setting upright a valve seat and a valve body that tin is connected in turn with this of being connected with housing, the spool of installing in valve seat and the valve body is equipped with spring between spool and the valve body.
2, combined type according to claim 1 is anti-pours in down a chimney the oil nozzle cover, it is characterized in that described housing one end is provided with jointing clip, and clip is provided with the oil nozzle installing hole with the ball-and-seat installation step and be connected internal thread, and the middle part is provided with oil outlet, and the other end is provided with internal thread.
3, combined type according to claim 1 is anti-pours in down a chimney the oil nozzle cover, it is characterized in that the described circumference of setting upright tube one end face is provided with axial flowing hole and centre bore.
4, combined type according to claim 1 is anti-pours in down a chimney the oil nozzle cover, it is characterized in that the circumference of described valve body one end face is provided with axial flowing hole and centre bore.
5, combined type according to claim 1 is anti-pours in down a chimney the oil nozzle cover, it is characterized in that described valve seat is a hollow structure, and the one end is provided with inner conical surface.
6, according to claim 1 or the anti-oil nozzle cover that pours in down a chimney of 4 described combined types, it is characterized in that described spool is that two ends are cylinder, middle for being provided with the column of outer conical surface, this column is in valve seat, its male cone (strobilus masculinus) matches with the valve seat inner conical surface, and the cylinder end at two ends is slidingly matched in the centre bore of setting upright tube and valve body respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200296383U CN201110160Y (en) | 2007-10-23 | 2007-10-23 | Combined reverse-filling resistance oil nozzle sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200296383U CN201110160Y (en) | 2007-10-23 | 2007-10-23 | Combined reverse-filling resistance oil nozzle sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201110160Y true CN201110160Y (en) | 2008-09-03 |
Family
ID=39894690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200296383U Expired - Fee Related CN201110160Y (en) | 2007-10-23 | 2007-10-23 | Combined reverse-filling resistance oil nozzle sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201110160Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110979962A (en) * | 2019-12-05 | 2020-04-10 | 中国石油化工股份有限公司 | Anti-backflow oil nozzle sleeve device |
-
2007
- 2007-10-23 CN CNU2007200296383U patent/CN201110160Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110979962A (en) * | 2019-12-05 | 2020-04-10 | 中国石油化工股份有限公司 | Anti-backflow oil nozzle sleeve device |
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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: 20080903 Termination date: 20091123 |