CN201443336U - Polished rod stuffing box - Google Patents
Polished rod stuffing box Download PDFInfo
- Publication number
- CN201443336U CN201443336U CN2009200273361U CN200920027336U CN201443336U CN 201443336 U CN201443336 U CN 201443336U CN 2009200273361 U CN2009200273361 U CN 2009200273361U CN 200920027336 U CN200920027336 U CN 200920027336U CN 201443336 U CN201443336 U CN 201443336U
- Authority
- CN
- China
- Prior art keywords
- polished rod
- cavity
- working chamber
- plunger
- stuffing box
- 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 discloses a wellhead sealing device of a rod pumping well, in particular to a polished rod stuffing box of the rod pumping bell, which comprises an anti-bias part, an anti-corrosion part and an anti-spraying device ,wherein the anti-bias part is a sliding plate connected with a polished rod shaft hole with spacing left therebetween, and the sliding plate is connected with a press cap by thread; the anti-corrosion part comprises a lubrication chamber; the lubrication chamber is a cavity provided with an inner opening which is communicated with a polished rod working chamber, and an outer opening is provided with a seal cover; the anti-spraying part comprises a horizontal cylindrical cavity communicated with the polished rod working chamber and a plunger which is arranged in the cavity and capable of moving left and right in the cavity; and the plunger is externally connected with a spring and a guide bar going through the spring. The polished rod stuffing box has the advantages of anti-bias, anti-corrosion and anti-spraying.
Description
Technical field
The utility model relates to a kind of well mouth sealing device of sucker rod pumping well, particularly a kind of polished rod stuffing box of sucker rod pumping well.
Background technology
At present, the oil well in oil field 98% is the sucker rod pumping well, and in the oil well production process, the polished rod stuffing box leakage of oil becomes the bottleneck that level is gone up in management.At present not good at the polished rod stuffing box resultant effect of usefulness.Subject matter shows 1. because polished rod misaligns, and causes the leakage of oil of polished rod eccentric wear packing; Because the polished rod seriously corroded, packing accelerated wear test causes the leakage of oil of sealing difference; 2. owing to the viscosity of crude height, oil is bonded on the polished rod, causes polished rod that oil is taken out of packing box; Since polished rod partially, the burn into load is heavy, the break well that falls of polished rod often takes place cause oil spout to pollute.More than these problems, not only polluted environment, increase management difficulty and workload, and cause and frequently stop well even the well of lying.
Summary of the invention
For solving above technical deficiency, the utility model provide a kind of anti-partially, flow backwards a kind of polished rod stuffing box of ejection of anticorrosion, anti-crude oil.
The utility model is realized by following measure:
Polished rod stuffing box of the present utility model comprises that master root, packing box, branch break briquetting, one-level packing off with the fingers and thumb, and the center is the polished rod working chamber, it is characterized in that: also comprise anti-part, anticorrosion part and blowout prevention part partially; Described anti-part partially comprises the slider disc that is sleeved on the polished rod axle, and described slider disc is by the side lower pressing cap that has been threaded, and this lower pressing cap top is provided with locking nut, and is provided with sliding bearing between lower pressing cap and the slider disc; Described anticorrosion part comprises with last branch breaks the upper pressing cap that has lubricating chamber that briquetting is threaded off with the fingers and thumb, and described lubricating chamber is the cavity that inner opening is communicated with the polished rod working chamber, and its outer opening part is provided with seal cover; Described blowout prevention partly comprises the horizontal cylinder cavity that is communicated with the polished rod working chamber and is arranged in its cavity plunger along the cavity move left and right, on the plunger to being externally connected with spring and running through the guide peg of spring.
The beneficial effects of the utility model are: 1, adopted the mode of horizontal tuningout sliding bearing, increased tuningout displacement and flexibility.2, adopt the nylon material cylinder of low-resistance wear-resistance, captured area is big, utilizes spring compression, has strengthened shutoff blowout prevention ability.3, employing butter and corrosion inhibiter lubricate and protect polished rod, have played dual corrosion-resistant effect.
Description of drawings
Fig. 1 is the structural representation that partly cuts open of the present utility model.
Among the figure: 1 jointing clip, 2 lower pressing caps, 3 slider disc, 4 sliding bearings, 5 locking nuts, 6 one-level packings, 7 times branch is broken briquetting off with the fingers and thumb, 8 packing boxs, and 9 master roots divide on 10 and break briquetting off with the fingers and thumb, 11 upper pressing caps, 12 lubricating chamber, 13 seal covers, 14 guide pegs, 15 springs, 16 plungers, 17 anti-sprinkler bodies.
The specific embodiment
Of the present utility model a kind of polished rod stuffing box as shown in Figure 1 comprises master root 9, packing box 8, divides and break briquetting, one-level packing 6 off with the fingers and thumb, and the center is the polished rod working chamber, it is characterized in that: also comprise anti-part, anticorrosion part and blowout prevention part partially; Described anti-part partially is the slider disc 3 that is connected with polished rod axis hole gap, described slider disc 3 lower pressing cap 2 that has been threaded; By the slider disc on the threeway jointing clip 13, packing box 8 is moved at horizontal any direction with polished rod, keep polished rod centering;
Described anticorrosion part comprises lubricating chamber 12, and described lubricating chamber 12 is the cavity of inner opening connection polished rod working chamber, and its outer opening part is provided with seal cover 13; In lubricating chamber 12, inject sliding agent, utilize lubricated and diaphragm principle, unload anti-sprinkler body 17, in lubricating chamber, add earlier corrosion inhibiter; Set up anti-sprinkler body 17, squeeze into butter by grease nipple to lubricating chamber 12 with grease gun again, the protection polished rod;
Described blowout prevention partly comprises the horizontal cylinder cavity that is communicated with the polished rod working chamber and is arranged in its cavity plunger 16 along the cavity move left and right, on the plunger 16 to being externally connected with spring 15 and running through the guide peg 14 of spring 15.Plunger adopts nylon material, utilize the principle of nylon low-resistance wear-resistance, anti-sprinkler body 17 is installed in lubricating chamber, promptly open a cylindrical cavity at cavity level place, cylinder nylon plunger withstands on the polished rod by the high pressure spring in the chamber, spring promotes the nylon plunger and seals the polished rod mouth when polished rod is disconnected, the ejection of control crude oil.Its function is to flow backwards by well head crude oil to spray, and also has effect more partially simultaneously.
Claims (1)
1. a polished rod stuffing box comprises master root (9), packing box (8), divides and break briquetting, one-level packing (6) off with the fingers and thumb, and the center is the polished rod working chamber, it is characterized in that: also comprise anti-part, anticorrosion part and blowout prevention part partially;
Described anti-part partially comprises the slider disc (3) that is sleeved on the polished rod axle, described slider disc (3) is by the side lower pressing cap (2) that has been threaded, this lower pressing cap (2) top is provided with locking nut (5), and is provided with sliding bearing (4) between lower pressing cap (2) and the slider disc (3);
Described anticorrosion part comprises with last branch breaks the upper pressing cap that has lubricating chamber (12) (11) that briquetting (10) is threaded off with the fingers and thumb, and described lubricating chamber (12) is the cavity of inner opening connection polished rod working chamber, and its outer opening part is provided with seal cover (13);
Described blowout prevention partly comprises the horizontal cylinder cavity that is communicated with the polished rod working chamber and is arranged in its cavity plunger (16) along the cavity move left and right, and plunger (16) is gone up to being externally connected with spring (15) and running through the guide peg (14) of spring (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200273361U CN201443336U (en) | 2009-06-09 | 2009-06-09 | Polished rod stuffing box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200273361U CN201443336U (en) | 2009-06-09 | 2009-06-09 | Polished rod stuffing box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201443336U true CN201443336U (en) | 2010-04-28 |
Family
ID=42548012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200273361U Expired - Fee Related CN201443336U (en) | 2009-06-09 | 2009-06-09 | Polished rod stuffing box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201443336U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900392A (en) * | 2012-09-03 | 2013-01-30 | 中国石油化工股份有限公司 | Controllable pumping-well blowout preventer |
| CN104405325A (en) * | 2014-12-10 | 2015-03-11 | 胜利油田北方实业集团有限责任公司 | Multifunctional polish rod sealer of pumping well |
-
2009
- 2009-06-09 CN CN2009200273361U patent/CN201443336U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900392A (en) * | 2012-09-03 | 2013-01-30 | 中国石油化工股份有限公司 | Controllable pumping-well blowout preventer |
| CN104405325A (en) * | 2014-12-10 | 2015-03-11 | 胜利油田北方实业集团有限责任公司 | Multifunctional polish rod sealer of pumping well |
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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: 20100428 Termination date: 20100609 |