CN204663868U - A kind of profile control and water plugging pump adopting novel sealing structure - Google Patents
A kind of profile control and water plugging pump adopting novel sealing structure Download PDFInfo
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- CN204663868U CN204663868U CN201520368194.0U CN201520368194U CN204663868U CN 204663868 U CN204663868 U CN 204663868U CN 201520368194 U CN201520368194 U CN 201520368194U CN 204663868 U CN204663868 U CN 204663868U
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- end cover
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- sealing
- profile control
- cover body
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Abstract
A kind of profile control and water plugging pump adopting novel sealing structure, relate to the hydraulically powered profile control and water plugging injection device of a kind of oil-water well operation, it comprises main pump body, main pump body is provided with end cover sealing structure, the sealing case that described end cover sealing structure comprises end cover body and matches with end cover body, be provided with support ring in described end cover body, the material of support ring is phenolic plastic.The right side of support ring is provided with primary seal, the right side of primary seal is provided with the positioning step hole of fitted seal box installation, secondary sealing and dust ring is from left to right disposed with in described sealing case, end cover body is also provided with lubricating oil path, lubricating oil path be communicated with respectively fuel tank and primary seal and secondary seal between cavity.The utility model convenient disassembly, both can realize the sufficient lubrication of seal element, fluid in sealing area can be prevented again to external leakage, efficiently solve " leakage of oil " problem of profile control and water plugging pump.
Description
Technical field
The utility model relates to the hydraulically powered profile control and water plugging injection device of a kind of oil-water well operation, specifically a kind of profile control and water plugging pump adopting novel sealing structure.
Background technique
In use often there is oil hydraulic cylinder " leakage of oil " accident in existing profile control and water plugging pump, piston rod outer round surface also easily occurs " scuffing " in various degree seal element less than half a year average life.
Profile control and water plugging pump is at oil field operation, operating conditions is severe, oil hydraulic cylinder assembly is under the operating load of average 20Mpa, to-and-fro motion per minute 6 strokes, to calculate half a year by use and then need wearing and tearing 1,500,000 strokes, end bracket enclosed must accomplish that wear resistance is good, long service life, replacing and easy to maintenance.Conventional hydraulic cylinder end cover is based on combination seal, comprise this special envelope, support ring, rod seal, dust ring, the sealing effect of Si Te envelope is fine, block hydraulic oil in Seal cage to exosmosis, make the support ring of outside and piston rod cylindrical be in dry friction working state, owing to lacking lubrication, after Long-Time Service, aggravate the wearing and tearing of support ring, wear particle forms regular axial cut at piston rod surface, causes the inefficacy of seal element.When support ring endoporus may wear to a certain degree, and when the matching gap between piston rod cylindrical increases gradually, the stressed extruding of this special envelope, just there will be pressure oil in hyperbaric chamber to exosmosis, causes " leakage of oil " accident.
Now, supporting seal element must be changed, because hydraulic cylinder end cover sealing configuration adopts integral design, disassemble process complexity, field maintenance is very difficult, oil hydraulic cylinder assembly weight is comparatively large, needs the crane gears such as special operating vehicle, first remove hydraulic oscillator during integral demounting, remove main valve connecting plate again, finally remove the hydraulic cylinder end cover at two ends, sealing original paper can be changed, if run into the profile control and water plugging pump of office operation, because working space is narrow, further increase maintenance difficulty, engineering time is long, costly.
Model utility content
In order to overcome the shortcoming that above-mentioned prior art exists, the purpose of this utility model is to provide a kind of profile control and water plugging pump adopting novel sealing structure, it manufactures simple, convenient disassembly, both can realize the sufficient lubrication of seal element, and fluid in sealing area can have been prevented again to external leakage, efficiently solve " leakage of oil " problem of profile control and water plugging pump, substantially increase working life, decrease the maintenance frequency of equipment.
In order to solve the problem, the utility model is by the following technical solutions: a kind of profile control and water plugging pump adopting novel sealing structure, comprise main pump body, main pump body is provided with end cover sealing structure, it is characterized in that, the sealing case that described end cover sealing structure comprises end cover body and matches with end cover body, support ring is provided with in described end cover body, the right side of support ring is provided with primary seal, the right side of primary seal is provided with the positioning step hole of fitted seal box installation, secondary sealing and dust ring is from left to right disposed with in described sealing case, end cover body is also provided with lubricating oil path, lubricating oil path be communicated with respectively fuel tank and primary seal and secondary seal between cavity.
Further: described primary seal is combined by O type rubber ring and teflon circle.
Further: sealing case is by being bolted to in end cover body along a group of sealing case its right end face circumference uniform distribution.
Further: the material of support ring is phenolic plastic.
The beneficial effects of the utility model are:
1, the support ring phenolic plastic of selecting hardness moderate, bear most of piston rod weight, play a part location and guiding, can prevent piston rod from occurring directly to contact and rub with end cap endoporus in movement process.Support ring is fully immersed in hydraulic oil simultaneously, and operating conditions is good, improves working life.
2, primary seal is combined by O type rubber ring and teflon circle, has low coefficient of friction, high pressure resistant, the advantages such as groove structure is simple, life cycle is long.
3. the pair sealing in sealing case serves the effect of secondary seal, and outmost dust ring can stop the dust of piston rod surface and impurity to enter oil hydraulic cylinder.
4, oil ring together with being formed in the closed area of the lubricating oil path increased between primary seal seals with pair; sufficient lubrication is carried out to the seal element of both sides; the very shallow oil film of one deck is formed at piston rod cylindrical friction surface; effective reducing friction resistance, protection piston rod surface is not scratched and extends the working life of seal element.
5, when primary seal in use occurs mild wear, when causing the microdialysis outside by primary seal of the pressure oil in hyperbaric chamber, the effect of secondary seal is played in the pair sealing in sealing case, stops the fluid of sealing configuration inside to continue to external leakage.Be collected at primary seal and secondary seal between unnecessary fluid in closed area under pressure itself, return fuel tank by lubricating oil path, decrease oil accident generation.
6, keep in repair and dismantle convenient.When secondary sealing wear to a certain extent, when leakage of oil is inevitable, can along piston rod cylindrical, take out sealing case and change supporting dust ring and pair seals, do not need the crane gear such as crane, operating vehicle, just can change the shortcoming of Sealing after overcoming overall pulling down oil hydraulic cylinder in the past, significantly increase work efficiency, reduction maintenance expenses.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described further:
Fig. 1 is the structural representation of the end cover sealing structure of the utility model embodiment;
In figure: 1 end cover body, 2 support rings, 3 lubricating oil paties, 4 primary seals, 5 sealing casees, 6 secondary sealings, 7 dust rings, 8 positioning step holes, 9 bolts.
Embodiment
As shown in Figure 1, a kind of profile control and water plugging pump adopting novel sealing structure, comprise main pump body, main pump body is provided with end cover sealing structure, the sealing case 5 that described end cover sealing structure comprises end cover body 1 and matches with end cover body 1, be provided with support ring 2 in described end cover body 1, the material of support ring 2 is phenolic plastic.
The right side of support ring 2 is provided with primary seal 4, and described primary seal 4 is combined by O type rubber ring and teflon circle.The right side of primary seal 4 is provided with the positioning step hole 8 that fitted seal box 5 is installed, sealing case 5 is fixed on in end cover body 1 by one group of bolt 9 along sealing case 5 its right end face circumference uniform distribution, secondary sealing 6 and dust ring 7 is from left to right disposed with in described sealing case 5, end cover body 1 is also provided with lubricating oil path 3, and lubricating oil path 3 is communicated with fuel tank and primary seal 4 and the secondary cavity sealed between 6 respectively.
The utility model is not only confined to above-described embodiment.
Claims (4)
1. one kind adopts the profile control and water plugging pump of novel sealing structure, comprise main pump body, main pump body is provided with end cover sealing structure, it is characterized in that, the sealing case that described end cover sealing structure comprises end cover body and matches with end cover body, support ring is provided with in described end cover body, the right side of support ring is provided with primary seal, the right side of primary seal is provided with the positioning step hole of fitted seal box installation, secondary sealing and dust ring is from left to right disposed with in described sealing case, end cover body is also provided with lubricating oil path, lubricating oil path be communicated with respectively fuel tank and primary seal and secondary seal between cavity.
2. a kind of profile control and water plugging pump adopting novel sealing structure according to claim 1, it is characterized in that, described primary seal is combined by O type rubber ring and teflon circle.
3. a kind of profile control and water plugging pump adopting novel sealing structure according to claim 1 and 2, is characterized in that, sealing case is by being bolted to in end cover body along a group of sealing case its right end face circumference uniform distribution.
4. a kind of profile control and water plugging pump adopting novel sealing structure according to claim 1 and 2, is characterized in that, the material of support ring is phenolic plastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520368194.0U CN204663868U (en) | 2015-06-01 | 2015-06-01 | A kind of profile control and water plugging pump adopting novel sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520368194.0U CN204663868U (en) | 2015-06-01 | 2015-06-01 | A kind of profile control and water plugging pump adopting novel sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204663868U true CN204663868U (en) | 2015-09-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520368194.0U Active CN204663868U (en) | 2015-06-01 | 2015-06-01 | A kind of profile control and water plugging pump adopting novel sealing structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN204663868U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108099100A (en) * | 2017-12-29 | 2018-06-01 | 深圳市凯中精密技术股份有限公司 | A kind of bakelite and processing method for oil pump sealing |
-
2015
- 2015-06-01 CN CN201520368194.0U patent/CN204663868U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108099100A (en) * | 2017-12-29 | 2018-06-01 | 深圳市凯中精密技术股份有限公司 | A kind of bakelite and processing method for oil pump sealing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 253034 Jinghua South Road, Dezhou Economic Development Zone, Shandong Province Patentee after: DEZHOU UNITED PETROLEUM TECHNOLOGY Corp. Address before: 253034 Shandong city of Dezhou Province Economic and Technological Development Zone South Road crystal Patentee before: DEZHOU UNITED PETROLEUM MACHINERY Co.,Ltd. |