CN201991758U - Sealing protector of electrical submersible pump unit - Google Patents
Sealing protector of electrical submersible pump unit Download PDFInfo
- Publication number
- CN201991758U CN201991758U CN2010206814797U CN201020681479U CN201991758U CN 201991758 U CN201991758 U CN 201991758U CN 2010206814797 U CN2010206814797 U CN 2010206814797U CN 201020681479 U CN201020681479 U CN 201020681479U CN 201991758 U CN201991758 U CN 201991758U
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- CN
- China
- Prior art keywords
- pump unit
- submersible pump
- protector
- sealing protector
- sealing
- 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 - Lifetime
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Abstract
The utility model relates to a sealing protector of an electrical submersible pump unit, which is characterized in that the sealing protector is in a metal air box type and consists of double layers of metal corrugated pipes. In the utility model, the double layers of metal corrugated pipes are adopted to form the metal air box type sealing protector, so the problems that the existing sealing protector is a leather bag which is aged, deformed and broken easily at a high temperature and the like are overcome, the sealing protector has the characteristics of high temperature resistance, corrosion resistance and good sealing performance, the functions of balancing differential pressure and protecting a submersible motor of the sealing protector are ensured, the service life of the electrical submersible pump unit is prolonged, and the sealing protector is easy to assemble, has a reliable structure, and is particularly suitable for the electrical submersible pump unit operating under a mal-condition.
Description
Technical field
The utility model relates to a kind of seal protector, relates in particular to a kind of seal protector that is used for Electric Submersible Pump Unit.
Background technique
Electric submersible pump is a underground equipment important in the oil mining, mainly comprises oil-submersible motor, seal protector, separator, oil-immersed pump etc.Seal protector is arranged between oil-submersible motor and the separator, and by expansion of self or the variation in pressure of shrinking balance oil-submersible motor inner chamber to cause owing to temperature variation, therefore, seal protector is the guarantee of oil-submersible motor safe operation.Existing seal protector adopts bladder structure, because leather bag is at high temperature easily aging, and distortion; even break, therefore, be difficult to play the effect of protection oil-submersible motor; not only cause shorten greatly the working life of Electric Submersible Pump Unit, and serious threat is to the running safety of oil-submersible motor.
The model utility content
The purpose of this utility model is to provide a kind of safe and reliable Electric Submersible Pump Unit seal protector.
The purpose of this utility model is achieved in that a kind of Electric Submersible Pump Unit seal protector, it is characterized in that: the sealing protector is the metal bellows type, is made of the double-level-metal bellows.
The front and back ends of above-mentioned double-level-metal bellows is equipped with cover plate, and described front end also is provided with positioning ring, and the rear end is provided with joint and enclosing cover.
Locate by circlip between the interior pipe of above-mentioned joint and above-mentioned double-ply bellows.
Seal by seal ring between the interior pipe of above-mentioned joint and above-mentioned double-ply bellows.
The cover plate of above-mentioned double-level-metal bellows one end and the welding of above-mentioned positioning ring, the cover plate of the other end and described joint, enclosing cover welding.
Above-mentioned double-ply bellows comprises inner corrugated pipe and outward corrugated tube, the internal circular surfaces of above-mentioned positioning ring and the welding of described inner corrugated pipe, outer round surface and the welding of described outward corrugated tube.
The cover plate welding of above-mentioned positioning ring and described front end.
The cover plate of above-mentioned rear end and above-mentioned joint, enclosing cover welding.
When at high temperature working, the oil-submersible motor running produces a large amount of heats, causes the expansion of dynamo oil and the rising of motor oil pressure, for conducting dynamo oil and balance pressure, the double-level-metal bellows reaches counterpressure by self expanding the expansion capacity, and the dynamo oil that overflows of splendid attire oil-submersible motor; When temperature descends, dynamo oil and counterpressure that the double-level-metal bellows compensates in the oil-submersible motor to be shunk by self contraction.
The utlity model has following beneficial effect; the utility model adopts double-ply bellows to constitute metal bellows type seal protector; not only overcome existing seal protector and adopted problems such as leather bag at high temperature easily wears out, is out of shape, breaks; and have characteristics high temperature resistant, anticorrosive, good seal performance; guaranteed the effect of seal protector balance pressure reduction and protection oil-submersible motor; improved the working life of Electric Submersible Pump Unit; and assembling is simple; reliable in structure is particluarly suitable for the Electric Submersible Pump Unit that operates under the mal-condition.
Description of drawings
Fig. 1 is the utility model example structure schematic representation; Fig. 2 is the utility model embodiment assembly structure schematic representation.
Embodiment
Embodiment, a kind of Electric Submersible Pump Unit seal protector, be the metal bellows type, constitute by the double-level-metal bellows, be arranged on by interior pipe 5 in the rotating shaft 10 of seal protector, the two ends of this double-level-metal bellows are equipped with cover plate, and an end casing 2-1 is provided with positioning ring 1 outward, and the other end cover plate 2-2 is provided with joint 7 and enclosing cover 6 outward; By circlip 8 location, seal between the interior pipe 5 of joint 7 and this double-ply bellows by O RunddichtringO 9; Cover plate 2-1 and positioning ring 1 welding, cover plate 2-2 and joint 7, enclosing cover 6 welding; This double-ply bellows comprises inner corrugated pipe 4 and outward corrugated tube 3, the internal circular surfaces of positioning ring 1 and inner corrugated pipe 4 welding, outer round surface and outward corrugated tube 3 welding.
When at high temperature working, the oil-submersible motor running produces a large amount of heats, cause the expansion of dynamo oil and the rising of motor oil pressure, for conducting dynamo oil and balance pressure, the double-level-metal bellows reaches the dynamo oil that counterpressure and splendid attire oil-submersible motor overflow by self expanding the expansion capacity; When temperature descends, dynamo oil and counterpressure that the double-level-metal bellows compensates in the oil-submersible motor to be shunk by self contraction.
Claims (5)
1. Electric Submersible Pump Unit seal protector, it is characterized in that: the sealing protector is the metal bellows type, is made of the double-level-metal bellows.
2. Electric Submersible Pump Unit seal protector as claimed in claim 1; it is characterized in that: the two ends of described double-level-metal bellows are equipped with cover plate; the outer positioning ring (1) that is provided with of one end casing (2-1), outer joint (7) and the enclosing cover (6) of being provided with of the other end cover plate (2-2).
3. Electric Submersible Pump Unit seal protector as claimed in claim 2 is characterized in that: by circlip (8) location, seal by seal ring (9) between the interior pipe (5) of described joint (7) and described double-ply bellows.
4. as claim 2 or 3 described Electric Submersible Pump Unit seal protectors; it is characterized in that: the cover plate (2-1) of described double-level-metal bellows one end and described positioning ring (1) welding, the cover plate of the other end (2-2) and described joint (7), enclosing cover (6) welding.
5. Electric Submersible Pump Unit seal protector as claimed in claim 4; it is characterized in that: described double-ply bellows comprises inner corrugated pipe (4) and outward corrugated tube (3); the internal circular surfaces of described positioning ring (1) and described inner corrugated pipe (4) welding, outer round surface and described outward corrugated tube (3) welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206814797U CN201991758U (en) | 2010-12-27 | 2010-12-27 | Sealing protector of electrical submersible pump unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206814797U CN201991758U (en) | 2010-12-27 | 2010-12-27 | Sealing protector of electrical submersible pump unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201991758U true CN201991758U (en) | 2011-09-28 |
Family
ID=44668247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206814797U Expired - Lifetime CN201991758U (en) | 2010-12-27 | 2010-12-27 | Sealing protector of electrical submersible pump unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201991758U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104929917A (en) * | 2015-05-18 | 2015-09-23 | 薛国清 | Sealing system of submersible linear motor |
| CN105186792A (en) * | 2015-09-29 | 2015-12-23 | 沈阳工业大学通益科技有限公司 | High-temperature submersible motor protector |
| CN109412310A (en) * | 2018-10-15 | 2019-03-01 | 沈阳工业大学 | Cylinder submersible linear electric machine with oil protector |
| CN112838490A (en) * | 2020-12-31 | 2021-05-25 | 江苏东方四通科技股份有限公司 | Intermediate frequency power supply with temperature control protection |
-
2010
- 2010-12-27 CN CN2010206814797U patent/CN201991758U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104929917A (en) * | 2015-05-18 | 2015-09-23 | 薛国清 | Sealing system of submersible linear motor |
| CN105186792A (en) * | 2015-09-29 | 2015-12-23 | 沈阳工业大学通益科技有限公司 | High-temperature submersible motor protector |
| CN109412310A (en) * | 2018-10-15 | 2019-03-01 | 沈阳工业大学 | Cylinder submersible linear electric machine with oil protector |
| CN112838490A (en) * | 2020-12-31 | 2021-05-25 | 江苏东方四通科技股份有限公司 | Intermediate frequency power supply with temperature control protection |
| CN112838490B (en) * | 2020-12-31 | 2023-04-14 | 江苏东方四通科技股份有限公司 | Intermediate frequency power supply with temperature control protection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 402760 Bishan high tech Industrial Development Zone, Xishan Road, No. 1, No. Patentee after: Chongqing hogye motor industry limited liability company Patentee after: Oil Extraction Technology Institute of SINOPEC Xinjiang Oilfield Co., Ltd. Address before: Chenjiaqiao town Chongqing city Shapingba District 401331 Patentee before: Chongqing Huxi Electric Machine Factory Patentee before: Oil Extraction Technology Institute of SINOPEC Xinjiang Oilfield Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20110928 |
|
| CX01 | Expiry of patent term |