CN202612024U - Electric pump-supercharged water injection device - Google Patents
Electric pump-supercharged water injection device Download PDFInfo
- Publication number
- CN202612024U CN202612024U CN 201220276802 CN201220276802U CN202612024U CN 202612024 U CN202612024 U CN 202612024U CN 201220276802 CN201220276802 CN 201220276802 CN 201220276802 U CN201220276802 U CN 201220276802U CN 202612024 U CN202612024 U CN 202612024U
- Authority
- CN
- China
- Prior art keywords
- electric pump
- motor
- water injection
- submersible motor
- pump
- 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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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to an electric pump-supercharged water injection device. The electric pump-supercharged water injection device comprises an oil cylinder (4), two ends of the oil cylinder (4) are respectively connected with an electric pump (1) and a submersible motor (5), a pressure gauge (6) is arranged on a pipeline between the oil cylinder (4) and the submersible motor (5), and the submersible motor (5) is placed in a high-pressure bin (3) and closed, and the submersible motor (5) and the electric pump (1) are connected through mechanical seal (2). The device well protects the motor, solves the problem that the motor is burnt in on-site use, and prolongs the service life and repair cycle of the supercharged water injection pump.
Description
Technical field
The utility model belongs to oil-field flooding engineering field, particularly a kind of electric pump boosting water injector.
Background technique
It is serious day by day that the water filling individual well in present domestic part oil field or block high pressure are shorted problem.Cause full well or part interval can not accomplish the requirement of injection allocation scheme, influence oil field whole development effect.Current domestic mainly be that the water injection equipment of usefulness has centrifugal boosting water injection pump and reciprocating booster injection pump; The problem that centrifugal pump in use mainly exists is that pump efficiency is too low, and average pump efficiency has only 50%, secondly; The supercharging value of centrifugal boosting water injection pump is less, has only about 5Mp.Can not satisfy present waterflooding requirement.The pump efficiency of reciprocating booster injection pump can reach 85%; Delivery pressure also can satisfy waterflooding requirement; But most of pumps using effect at the scene is not good enough; Mainly be that simultaneously, the pressure-bearing surface in the Seal cage also produces eccentric wear thereupon because the dry friction that produces in the boosting water injection pump Seal cage that adopts connecting rod to drive raises oil temperature.The working life that so promptly influences pump also supercharging the repair cycle of pump.Secondly the configuration of reciprocating booster injection pump pumping cylinder is few, does not have suitable damper mechanism, causes noise bigger.
Summary of the invention
In order to solve the problem that exists in the background technique; The utility model provides a kind of electric pump boosting water injector; This device has well been protected motor, and has solved the problem of burn-down of electric motor in the on-the-spot use, has prolonged the working life and the repair cycle of boosting water injection pump.
The technological scheme that the utility model adopted is: this electric pump boosting water injector comprises oil cylinder; The two ends of oil cylinder connect electric pump and submersible motor respectively; On the pipeline between oil cylinder and the submersible motor pressure gauge is installed; Submersible motor is put into the high-pressure chamber inner sealing, is connected with mechanical seal between submersible motor and the electric pump.
This novel beneficial effect that has is: the utility model has been simplified the electric motor protecting structure, easy processing, and field operation is convenient.The electric pump boosting water injector has solved the sealing problem of pump intake, has well protected motor, and has solved the problem of burn-down of electric motor in the on-the-spot use.The working life and the repair cycle of boosting water injection pump have been prolonged.Repair cycle can reach 1 year, has improved the life cycle of boosting water injection pump, has improved pump efficiency.
Description of drawings:
Fig. 1 is the structural representation of the utility model.
Among the figure: 1-electric pump, 2-mechanical seal, 3-high-pressure chamber, 4-oil cylinder, 5-submersible motor, 6-pressure gauge.
Embodiment:
Below in conjunction with accompanying drawing the utility model is further specified: shown in accompanying drawing 1; This electric pump boosting water injector comprises oil cylinder 4; The two ends of oil cylinder 4 connect electric pump 1 and submersible motor 5 respectively; On the pipeline between oil cylinder 4 and the submersible motor 5 pressure gauge 6 is installed, submersible motor 5 is put into high-pressure chamber 3 inner sealings, is connected with mechanical seal 2 between submersible motor 5 and the electric pump 1.Realize the real-time additional dynamo oil of monitoring through the pressure gauge on oil cylinder 4 pipelines 6 to oil pressure in the oil cylinder 4; Make oil pressure be kept above hydraulic pressure always; Thereby utilize balancing method to realize the sealing that combines mechanical seal 2 to realize to electric pump 1 inlet; High pressure water can't be got in the motor cavity, reach the purpose of protection motor.For the sealing of motor down-lead, the utility model adopts sealing material PEEK as the motor down-lead sleeve, adds back-up ring with " O " ring and seals.
The water pressure of coming of boosting water injection pump is the injection pipe network terminal pressure, and generally about 14MPa, so high pressure is that envelope does not live with mechanical seal merely to terminal pressure; We adopt pressure balance method to add mechanical seal and solve this difficult problem; At first couple together electric pump 1 and submersible motor 5, with mechanical seal 2 shutoff, be placed on high-pressure chamber 3 inner sealings to submersible motor 5 then between the two; Mechanical seal this moment 2 stationary ring side hydraulic pressures are greater than rotating ring side oil pressure in the motor cavity; In order to prevent that high pressure water from getting in submersible motor 5 chambeies, must make oil pressure greater than hydraulic pressure, get a part of high pressure water (14.5MPa) from electric pump 1 level V for this reason and be pressed into the dynamo oil on piston right side in the motor cavity through hydraulic cylinder piston; Make the oil pressure in the motor cavity be raised to 14.5MPa; Greater than the hydraulic pressure 14MPa of pump intake place, make high pressure water can't get into motor, reach the purpose of protection motor.
Claims (1)
1. electric pump boosting water injector; Comprise oil cylinder (4); It is characterized in that: the two ends of oil cylinder (4) connect electric pump (1) and submersible motor (5) respectively; On the pipeline between oil cylinder (4) and the submersible motor (5) pressure gauge (6) is installed, submersible motor (5) is put into high-pressure chamber (3) inner sealing, is connected with mechanical seal (2) between submersible motor (5) and the electric pump (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220276802 CN202612024U (en) | 2012-06-12 | 2012-06-12 | Electric pump-supercharged water injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220276802 CN202612024U (en) | 2012-06-12 | 2012-06-12 | Electric pump-supercharged water injection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202612024U true CN202612024U (en) | 2012-12-19 |
Family
ID=47345730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220276802 Expired - Fee Related CN202612024U (en) | 2012-06-12 | 2012-06-12 | Electric pump-supercharged water injection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202612024U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298811A (en) * | 2015-10-30 | 2016-02-03 | 天津荣亨集团股份有限公司 | Leaked water recycling device for sealed pressurizing protector of pressurizing water injection pump |
-
2012
- 2012-06-12 CN CN 201220276802 patent/CN202612024U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298811A (en) * | 2015-10-30 | 2016-02-03 | 天津荣亨集团股份有限公司 | Leaked water recycling device for sealed pressurizing protector of pressurizing water injection pump |
| CN105298811B (en) * | 2015-10-30 | 2017-08-25 | 天津荣亨集团股份有限公司 | Boosting water injection pump supercharging seal protector leakage apparatus for recovering |
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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 |
Granted publication date: 20121219 Termination date: 20180612 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |