CN202872517U - Metal bellows compensation device for electrical submersible pump motor protector - Google Patents
Metal bellows compensation device for electrical submersible pump motor protector Download PDFInfo
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- CN202872517U CN202872517U CN 201220537415 CN201220537415U CN202872517U CN 202872517 U CN202872517 U CN 202872517U CN 201220537415 CN201220537415 CN 201220537415 CN 201220537415 U CN201220537415 U CN 201220537415U CN 202872517 U CN202872517 U CN 202872517U
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- bellows
- metal bellows
- working chamber
- metal
- seat
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Abstract
A metal bellows compensation device for an electrical submersible pump motor protector is provided, and the metal bellows compensation device comprises a bellows top seat, a support pipe, a compensation chamber metal bellows, a metal bellows transition flange, a working chamber metal bellows, a working chamber metal bellows connection flange, and a bellows bottom seat. An end of the support pipe is connected with an inner side of bellows top seat, the other end of the support pipe passes through the bellows bottom seat, an outside of the bellows top seat is provided and connected in sequence with a compensation chamber bellows connection flange, the compensation chamber metal bellows, the metal bellows transition flange, the working chamber metal bellows, the working chamber metal bellows connection flange, and the bellows bottom seat, a top of the compensation chamber bellows connection flange is fixed with the bellows top seat by a circlip for shaft, and the working chamber metal bellows connection flange is fixed with the bellows bottom seat by hexagon socket head cap screws. The metal bellows compensation device for the electrical submersible pump motor protector has advantages of high temperature resistance, strong acid resistance, strong basic corrosion resistance, long service life, simple structure, swift motion, easy construction, obvious compensation effect, reliable sealing and the like, and the device is widely applied in oil field oil extraction technology.
Description
Technical field
The utility model relates to oil exploitation well water injection equipment, particularly a kind of metal bellows compensation arrangement for the submersible electric pump motor protecter.
Background technology
In the oil field development, the Electric Submersible Pump Unit protector that oil mining is commonly used mainly divides two kinds, and a kind of is decanter type, and a kind of is capsule-type.Protector as the electric pump unit---protector is for positive effect has been brought into play in the protection of Electric Submersible Pump Unit.But the protector of this conventional structure pattern exists following shortcoming or deficiency: 1. the application in high temperature, high pressure and corrosion oil well has great limitation, and the capsule of capsule protector is aging, explosion easily, and useful life is short, poor reliability; 2. breathe the compensation ability deficiency, useful life is short; 3. structure is comparatively complicated, installation and maintenance inconvenience; 4. temperature applicable range is less, is lower than uniform temperature, and capsule is breathed compensation ability and weakened; 5. the Capsules On Anti fatigue capability is poor, the repeated application scarce capacity.
Summary of the invention
The purpose of this utility model provides a kind of improved metal bellows compensation arrangement for the submersible electric pump motor protecter, has characteristics high temperature resistant, high pressure resistant, high-corrosion resistant, the shortcoming or the deficiency that effectively overcome or avoid existing in the above-mentioned prior art.
Metal bellows compensation arrangement for the submersible electric pump motor protecter described in the utility model comprises circlip for shaft, compensated cavity bellows adpting flange, the bellows seat of honour, stay pipe, compensated cavity metal bellows, metal bellows counter flange, working chamber metal bellows, working chamber metal bellows adpting flange, lower of bellows, hexagon socket head cap screw.Be connected in one end of described stay pipe and the bellows seat of honour, the other end of stay pipe passes lower of bellows, install in turn outside the bellows seat of honour and be connected with lower of compensated cavity bellows adpting flange, compensated cavity metal bellows, metal bellows counter flange, working chamber metal bellows, working chamber metal bellows adpting flange, bellows, the upper end of compensated cavity bellows adpting flange is fixed by circlip for shaft and the bellows seat of honour, and working chamber metal bellows adpting flange is fixed together by hexagon socket head cap screw and lower of bellows.
Wherein, described compensated cavity metal bellows, working chamber metal bellows and compensated cavity bellows adpting flange, working chamber metal bellows adpting flange, counter flange form an integral body by welding.Described compensated cavity metal bellows, working chamber metal bellows are variable-diameter structure.The diameter of described compensated cavity metal bellows is less than the diameter of working chamber metal bellows.Link together by the metal bellows counter flange between described compensated cavity metal bellows and the working chamber metal bellows.On lower of the described bellows seat of honour and the bellows " O " RunddichtringO is installed.Described stay pipe is connected by interference fit with the bellows seat of honour, lower of bellows.Described compensated cavity metal bellows and working chamber metal bellows are the metal hose structure.
The utility model has following advantage compared with prior art:
1, the whole stainless steel material that adopts is made, high temperature resistant, anti-strong acid, anti-alkali corrosion, energy reliably protecting submersible electric machine with oil, thereby the working life that prolongs unit.
2, simple in structure, flexible movements, easy construction, compensation effect is obvious;
3, high temperature resistant, anti-strong acid, anti-alkali corrosion, the instead of rubber capsule provides positiver sealing fully, prolongs Electric Submersible Pump Unit service cycle, exchanges fully with original rubber capsule installation dimension;
4, change the pattern that the radial expansion of former rubber capsule is compensated for as the compensation of fixed area axial stretching, substituted the rubber capsule of former usefulness, save the overflow pipe in the former capsule protector, simplified protector structure.
Description of drawings
Fig. 1 is a kind of example structure schematic diagram of the utility model.
Embodiment
Consult Fig. 1; a kind of metal bellows compensation arrangement for the submersible electric pump motor protecter comprises circlip for shaft 1, compensated cavity bellows adpting flange 3, the bellows seat of honour 4, stay pipe 5, compensated cavity metal bellows 6, metal bellows counter flange 7, working chamber metal bellows 8, working chamber metal bellows adpting flange 9, lower 11 of bellows, hexagon socket head cap screw 12.Be connected in one end of stay pipe 5 and the bellows seat of honour 4, the other end of stay pipe 5 passes bellows lower 11, the bellows seat of honour 4 is outer installs in turn and is connected with lower 11 of compensated cavity bellows adpting flange 3, compensated cavity metal bellows 6, metal bellows counter flange 7, working chamber metal bellows 8, working chamber metal bellows adpting flange 9, bellows, the upper end of compensated cavity bellows adpting flange 3 is fixed by circlip for shaft 1 and the bellows seat of honour 4, and working chamber metal bellows adpting flange 9 is fixed together by hexagon socket head cap screw 12 and lower 11 of bellows.
Compensated cavity metal bellows 6, working chamber metal bellows 8 form an integral body with compensated cavity bellows adpting flange 3, working chamber metal bellows adpting flange 9, counter flange 7 by welding.Compensated cavity metal bellows 6, working chamber metal bellows 8 are variable-diameter structure.The diameter of compensated cavity metal bellows 6 is less than the diameter of working chamber metal bellows 8.Link together by metal bellows counter flange 7 between compensated cavity metal bellows 6 and the working chamber metal bellows 8.On lower 11 of the bellows seat of honour 4 and the bellows " O " RunddichtringO 2 is installed.Lower 11 of stay pipe 5 and the bellows seat of honour 4, bellows are connected by interference fit.Described compensated cavity metal bellows 6 and working chamber metal bellows 8 are the metal hose structure.
During use, when the submersible electric machine with oil operating temperature raises, expand because its internal electrical machine oil heated body is long-pending, oil pressure raises, because compensated cavity metal bellows 6 is different with working chamber metal bellows 8 cross-sectional sizes, under the effect of pressure reduction, produce axial displacement upwards, volume increases, unnecessary dynamo oil in the storage submersible electric machine with oil is until the pressure rebalancing.During such as the reduction of submersible electric machine with oil operating temperature or dynamo oil generation loss; under the pressure of protector metal bellows compensation arrangement outer well liquid; compensated cavity metal bellows 6 and working chamber metal bellows 8 produce downward axial displacement; volume reduces; dynamo oil is pressed to submersible electric machine with oil inside; the dynamo oil that reduces in the compensation submersible electric machine with oil, pressure rebulids balance.
Claims (7)
1. metal bellows compensation arrangement that is used for the submersible electric pump motor protecter; comprise circlip for shaft; compensated cavity bellows adpting flange; the bellows seat of honour; stay pipe; the compensated cavity metal bellows; the metal bellows counter flange; the working chamber metal bellows; working chamber metal bellows adpting flange; lower of bellows; hexagon socket head cap screw; be connected in an end that it is characterized in that described stay pipe and the bellows seat of honour; the other end of stay pipe passes lower of bellows; install in turn outside the bellows seat of honour and be connected with compensated cavity bellows adpting flange; the compensated cavity metal bellows; the metal bellows counter flange; the working chamber metal bellows; working chamber metal bellows adpting flange; lower of bellows; the upper end of compensated cavity bellows adpting flange is fixed by circlip for shaft and the bellows seat of honour, and working chamber metal bellows adpting flange is fixed together by hexagon socket head cap screw and lower of bellows.
2. the metal bellows compensation arrangement for the submersible electric pump motor protecter according to claim 1 is characterized in that described compensated cavity metal bellows, working chamber metal bellows and compensated cavity bellows adpting flange, working chamber metal bellows adpting flange, counter flange form an integral body by welding.
3. the metal bellows compensation arrangement for the submersible electric pump motor protecter according to claim 2 is characterized in that the diameter of described compensated cavity metal bellows is less than the diameter of working chamber metal bellows.
4. the metal bellows compensation arrangement for the submersible electric pump motor protecter according to claim 1 is characterized in that linking together by metal bellows counter flange (7) between described compensated cavity metal bellows and the working chamber metal bellows.
5. the metal bellows compensation arrangement for the submersible electric pump motor protecter according to claim 1 is characterized in that on lower of the described bellows seat of honour and the bellows " O " RunddichtringO being installed.
6. the metal bellows compensation arrangement for the submersible electric pump motor protecter according to claim 1 is characterized in that described stay pipe is connected by interference fit with the bellows seat of honour, lower of bellows.
7. described metal bellows compensation arrangement for the submersible electric pump motor protecter according to claim 1 and 2 is characterized in that described compensated cavity metal bellows and working chamber metal bellows are the metal hose structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220537415 CN202872517U (en) | 2012-10-20 | 2012-10-20 | Metal bellows compensation device for electrical submersible pump motor protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220537415 CN202872517U (en) | 2012-10-20 | 2012-10-20 | Metal bellows compensation device for electrical submersible pump motor protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202872517U true CN202872517U (en) | 2013-04-10 |
Family
ID=48039204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220537415 Expired - Fee Related CN202872517U (en) | 2012-10-20 | 2012-10-20 | Metal bellows compensation device for electrical submersible pump motor protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202872517U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10781811B2 (en) | 2017-06-24 | 2020-09-22 | Ge Oil & Gas Esp, Inc. | Volumetric compensator for electric submersible pump |
| CN114017571A (en) * | 2021-11-22 | 2022-02-08 | 扬中市同创电气有限公司 | Combined pipeline compensator suitable for high-frequency vibration and mounting method |
-
2012
- 2012-10-20 CN CN 201220537415 patent/CN202872517U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10781811B2 (en) | 2017-06-24 | 2020-09-22 | Ge Oil & Gas Esp, Inc. | Volumetric compensator for electric submersible pump |
| CN114017571A (en) * | 2021-11-22 | 2022-02-08 | 扬中市同创电气有限公司 | Combined pipeline compensator suitable for high-frequency vibration and mounting method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130410 Termination date: 20161020 |