CN2663645Y - Lubricating device of polished rod seal box - Google Patents
Lubricating device of polished rod seal box Download PDFInfo
- Publication number
- CN2663645Y CN2663645Y CN 200320119996 CN200320119996U CN2663645Y CN 2663645 Y CN2663645 Y CN 2663645Y CN 200320119996 CN200320119996 CN 200320119996 CN 200320119996 U CN200320119996 U CN 200320119996U CN 2663645 Y CN2663645 Y CN 2663645Y
- Authority
- CN
- China
- Prior art keywords
- polished rod
- rod seal
- stuffing
- seal device
- joint
- 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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- Sealing Devices (AREA)
Abstract
A lubricating device of polished rod seal box belongs to an oil field oil extractor polished rod seal device, which consists of a receptacle (1) with lube, a stuffing (2), a stuffing box (3), a cushion piece (4), a press cover (5), an oil block ring (7) and a joint (8). The device is arranged on the prior polished rod seal device fixed on a feed rod (6). The device makes use of the reciprocating movement of the feed rod of the oil extractor in the feed rod seal device in crude oil extraction process to bring the lube into the receptacle (1) on the surface of the feed rod into the feed rod seal device, and to the interface position between the polished rod and the seal stuffing with good lubricating function. The device has the advantages of sufficient lubrication between the polished rod seal device stuffing and the polished rod, little stuffing wear and little power consumption due to wear in the polished rod seal device.
Description
Technical field
Polished rod seal box lubricating arrangement of the present utility model is the device that is used for the oilfield pumping well polished rod seal.
Background technology
Be used for the oilfield pumping well polish rod seal device at present, unlubricated device adopts multi-stage sealedly usually, and the employing that has is spring sealed, the employing filler device that has.Because crude oil high-solidification point and inside and outside differential pressure are bigger, so present employed polish rod seal device, power attenuation is big, and seal is easily impaired.
The utility model content
The purpose of this utility model is that the defective at above-mentioned prior art exists provide a kind of good seal performance, and energy consumption is little, and seal is difficult for impaired polished rod seal box lubricating arrangement.
The formation that realizes above-mentioned purpose polished rod seal box lubricating arrangement is, container is made up of two parts up and down, the container bottom is connected with polished rod seal box on being fixed in polished rod, the container top that its inner chamber is equipped with sliding agent links to each other with joint, stuffing box with unthreaded hole is fixed on the joint, joint has and the corresponding unthreaded hole of stuffing box unthreaded hole, places gland and the gasket seal of filler by linking to each other with stuffing box in the stuffing box, and impingement ring is fixed in upper end of joint portion.
This polished rod seal box lubricating arrangement is connected existing polished rod sealer top, and its operating principle is, because crude oil with high solidifying point solidifies at normal temperatures, viscosity is very high, and lubricant effect is bad, and the lubricant effect of sliding agent is far better.The utility model is exactly in the oil extraction process, utilize oil-extractor polish-rod in polished rod sealer, constantly to move back and forth, to bring in the polished rod sealer attached to the sliding agent of the lip-deep internal tank of polished rod, reach the interface location between polished rod and the airtight and watertight padding, thereby play good lubrication.Therefore, this polished rod seal box lubricating arrangement compared with prior art except having good sealing performance, also has following two advantages:
1, sufficient lubrication is arranged between the filler of polished rod sealer and the polished rod, the filler wearing and tearing are little;
2, in the polished rod sealer, the power attenuation that causes because of wearing and tearing is little.
Description of drawings
Fig. 1, one of polished rod seal box lubricating arrangement structural representation.
Fig. 2, two of polished rod seal box lubricating arrangement structural representation.
Label title among Fig. 1 and Fig. 2: 1, container, 2, filler, 3, stuffing box, 4, pad, 5, gland, 6, polished rod, 7, impingement ring, 8, joint, 9, mudhole.
The specific embodiment
As shown in Figure 1, the concrete composition of this polished rod seal box lubricating arrangement is, the bottom of container 1 links to each other with polished rod seal box on being fixed in polished rod 6 by the internal thread of container, having the container top that mudhole 9 its inner chambers are equipped with sliding agent links to each other with joint 8 by screw thread, it has the stuffing box 3 of mudhole to be installed on the joint 8 by bolt, joint 8 has and the corresponding unthreaded hole of stuffing box 3 unthreaded holes, because the unthreaded hole of stuffing box 3 is bigger than the unthreaded hole of joint 8, so adjusting leeway is arranged in the horizontal direction, it is consistent with polished rod 6 centers to regulate stuffing box 3 centers, reduces eccentric wear; Filler 2 places between stuffing box 3 and the gland 5, is interconnected to constitute hermetically-sealed construction by stuffing box 3 and gland 5 and pad 4, its role is to, and when polished rod 6 is up, unnecessary sliding agent is scraped off to reduce lubricant loss from polished rod 6; Impingement ring 7 is installed in joint 8 upper ends, and it mainly acts on is to prevent the oil pollution surrounding environment that leaks out.The effect of mudhole 9 is to be convenient to change sliding agent.
What Fig. 2 was different with Fig. 1 is, the external diameter of stuffing box 3 is fixed between joint 8 and the impingement ring 7 greater than the external diameter of impingement ring 7, so stuffing box 3 can move freely in the horizontal direction, therefore it is consistent with polished rod 6 centers to regulate stuffing box 3 centers, thereby reduces eccentric wear.
Claims (1)
1, a kind of polished rod seal box lubricating arrangement, it is characterized in that, container (1) bottom links to each other with polished rod seal on being fixed in polished rod (6), having container (1) top that its inner chamber of mudhole (9) is equipped with sliding agent links to each other with joint (8), stuffing box (3) with unthreaded hole is installed on the joint (8) that has unthreaded hole equally, and filler (2) places between stuffing box (3) and the gland (5), and impingement ring (7) is installed in joint (8) upper end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320119996 CN2663645Y (en) | 2003-11-28 | 2003-11-28 | Lubricating device of polished rod seal box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320119996 CN2663645Y (en) | 2003-11-28 | 2003-11-28 | Lubricating device of polished rod seal box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2663645Y true CN2663645Y (en) | 2004-12-15 |
Family
ID=34347833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320119996 Expired - Fee Related CN2663645Y (en) | 2003-11-28 | 2003-11-28 | Lubricating device of polished rod seal box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2663645Y (en) |
-
2003
- 2003-11-28 CN CN 200320119996 patent/CN2663645Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |