CN104319932A - Respiration protector for submersible linear motor - Google Patents
Respiration protector for submersible linear motor Download PDFInfo
- Publication number
- CN104319932A CN104319932A CN201410529932.5A CN201410529932A CN104319932A CN 104319932 A CN104319932 A CN 104319932A CN 201410529932 A CN201410529932 A CN 201410529932A CN 104319932 A CN104319932 A CN 104319932A
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- Prior art keywords
- slide block
- respirator
- linear motor
- outer tube
- electric machine
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention relates to the field of submersible linear motors and particularly relates to a respiration protector for a submersible linear motor, which comprises a sealing device and a motor connector connecting the sealing device and the linear motor, wherein the sealing device comprises a sliding block and a hose used for storing internal lubrication oil of the linear motor; and two ends of the hose are in sealing connection with the sliding block and the motor connector respectively. The respiration protector also comprises an elastic device used for driving the sliding block to move upwardly and pushing the lubrication oil inside the hose back into the linear motor. A full sealing structure is formed via the hose and the submersible linear motor, well fluid and debris can not enter the internal part of the submersible linear motor, and the well fluid and the debris can be effectively prevented from corroding and wearing spare parts; and in addition, as the full sealing structure is internally filled with the lubrication oil, the motion part of the submersible linear motor is sealed in a sealing space filled with the lubrication oil, the wear service life of the submersible linear motor is greatly improved, and safety and reliability of the submersible linear motor are improved.
Description
Technical field
The present invention relates to oil immersion line motor field, be specifically related to a kind of respirator of oil immersion line motor.
Background technology
Oily formula linear induction motor system of diving is placed in underground oil wells and works, and subsurface environment is very severe, therefore proposes very high requirement to the reliability of its whole system.
Sealer has been installed in current a part of oil immersion line motor system upper end, but lower end employing is opened type, is directly lubricated by well liquid.Acid-base material in well liquid and the grains of sand can enter into oil immersion line motor inside by the uncovered of lower end, cause corrosion and unstable wear, greatly reduce the working life of whole system to parts.
Sealing device has been installed in some oil immersion line motor system lower end, injects lubricating oil at motor internal.But seal form is reciprocating movable sealing, the seal of relative motion, in wearing and tearing frequently, very easily causes oil leak, and causes well liquid to enter into motor internal, do not have effective seal protection effect.
Therefore oil immersion line motor system is badly in need of a kind of safe and reliable all-sealed structure, prevents well liquid and impurity from entering motor.
Summary of the invention
The technical problem to be solved in the present invention is: for the deficiencies in the prior art, a kind of respirator of oil immersion line motor is provided, the security reliability overcoming existing oil immersion line motor is not high, well liquid and impurity easily enter motor, corrosion and unstable wear are caused to parts, reduces the working life of motor; The seal of relative motion, in wearing and tearing frequently, very easily causes oil leak, and causes well liquid to enter into motor internal, do not have the defect of effective seal protection effect.
The technical solution adopted for the present invention to solve the technical problems is: a kind of respirator of oil immersion line motor, comprise the electric machine joint of sealing device and connection sealing device and linear electric motors, described sealing device comprises slide block and the flexible pipe for storing linear electric motors internal lubrication oil, and the two ends of described flexible pipe are tightly connected with described slide block and electric machine joint respectively; Described respirator also comprises one and moves for driving on described slide block, and the lubricating oil promoted in described flexible pipe recharges the elastic device of linear electric motors.
Further preferred version of the present invention is: described respirator also comprises support bar, and this support bar one end is fixedly connected with described slide block, and the other end is arranged relative to described electric machine joint activity.
Further preferred version of the present invention is: described respirator also comprises protection outer tube, and this protection outer tube upper end is fixedly connected with described electric machine joint, and described electric machine joint, slide block, flexible pipe and support bar are located in the pore of described protection outer tube.
Further preferred version of the present invention is: the lower end of described protection outer tube is provided with screen pack.
Further preferred version of the present invention is: the shape of described slide block and the pore shape of described protection outer tube adapt, and this slide block is equipped with in the pore of described protection outer tube, and can slide up and down along described pore.
Further preferred version of the present invention is: described elastic device is extension spring, and this extension spring one end and described slide block fix, and the other end and described electric machine joint fix.
Further preferred version of the present invention is: described flexible pipe is bellows, the former length of this bellows and the former appearance etc. of described extension spring.
Further preferred version of the present invention is: described support bar is positioned at the center of described bellows, and described extension spring is sheathed on described support bar.
Further preferred version of the present invention is: described elastic device is Compress Spring, between the lower end that this Compress Spring is resisted against described protection outer tube and slide block.
Beneficial effect of the present invention is, to be tightly connected slide block and electric machine joint by the two ends of flexible pipe, make oil immersion line motor and flexible pipe form all-sealed structure, well liquid and impurity enter less than oil immersion line motor inside, can effectively prevent well liquid and impurity from causing corrosion and wearing and tearing to parts; By the lubricating oil of hose storage oil immersion line motor inside, the lubricating oil promoted in flexible pipe by elastic device recharges oil immersion line motor, making oil immersion line motor motion parts be enclosed in one has filled in seal oil space, substantially increase the wear-out life of oil immersion line motor, improve the security reliability of oil immersion line motor.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the internal structure schematic diagram of embodiments of the invention one;
Fig. 2 is the internal structure schematic diagram of embodiments of the invention two;
Fig. 3 is the internal structure schematic diagram of embodiments of the invention three;
Fig. 4 is the sandwich elastic hose partial cutaway schematic of embodiments of the invention three;
Embodiment
Now by reference to the accompanying drawings, preferred embodiment of the present invention is elaborated.
As shown in Figure 1, the respirator of the oil immersion line motor of the preferred embodiment of the present invention, comprise the electric machine joint 2 of sealing device 1 and connection sealing device 1 and linear electric motors, described sealing device 1 comprises slide block 11 and the flexible pipe 12 for storing linear electric motors internal lubrication oil, and the two ends of described flexible pipe 12 are tightly connected with described slide block 11 and electric machine joint 2 respectively; Described respirator also comprises one and moves for driving on described slide block 11, and the lubricating oil promoted in described flexible pipe 12 recharges the elastic device 3 of linear electric motors.To be tightly connected slide block 11 and electric machine joint 2 by the two ends of flexible pipe 12, oil immersion line motor and flexible pipe 12 is made to form all-sealed structure, well liquid and impurity enter less than oil immersion line motor inside, can effectively prevent well liquid and impurity from causing corrosion and wearing and tearing to parts; The lubricating oil of oil immersion line motor inside is stored by flexible pipe 12, the lubricating oil promoted in flexible pipe 12 by elastic device 3 recharges oil immersion line motor, making oil immersion line motor motion parts be enclosed in one has filled in seal oil space, substantially increase the wear-out life of oil immersion line motor, improve the security reliability of oil immersion line motor.Particularly, electric machine joint 2 is connected to the tail end of oil immersion line motor, and it can adopt multiple connected mode, as sealed tube thread connection, welding etc.When lubricating oil is injected in oil immersion line motor inside, flexible pipe 12 first filled by lubricating oil, then flows to oil immersion line motor inside by electric machine joint 2, until whole system filled by lubricating oil.When oil immersion line motor is descending, motor internal stores the reduced space of lubricating oil, and lubricating oil flows into flexible pipe 12 through electric machine joint 2, and flexible pipe 12 is under pressure and starts to expand and/or extend, and is with movable slider 11 to move down simultaneously, and overcomes the elastic force acting of elastic device 3.Due to oil immersion line motor descending time, oil-submersible linear electric motor mover gravity acting, so this step does not consume power of motor; When oil immersion line motor is up, the space that motor internal stores lubricating oil increases, flexible pipe 12 is no longer under pressure, under the elastic force effect of elastic device 3, slide block 11 moves the lubricating oil promoted in flexible pipe 12 and flow back to oil immersion line motor inside through electric machine joint 2, oil immersion line motor runs to after top dead center, and flexible pipe 12 and elastic device 3 all return to free state, this step is done work by the elastic force of elastic device 3, does not also consume power of motor.In addition, when the oil thermal expansion of submersible electric machine with oil internal lubrication and cold events, flexible pipe 12 plays automatic storage and compensates the effect of submersible electric machine with oil internal lubrication oil.Therefore, oil immersion line motor respirator of the present invention, has the plurality of advantages such as reliability is high, energy-conservation, low-carbon (LC), wide market.
As shown in Figure 1, the respirator of the present embodiment also comprises support bar 4, and this support bar 4 one end is fixedly connected with described slide block 11, and the other end is arranged relative to described electric machine joint 2 activity.Further, support bar 4 and slide block 11 are fixed by the fixed form of routine, as welding, are threaded.The present embodiment adopts the mode be threaded to interfix, and coats anaerobic adhesive, prevents from loosening.Support bar 4 is arranged with the activity of electric machine joint 2, realizes by arranging a mating holes adapted with support bar 4 on electric machine joint 2.Described support bar 4 preferably adopts stainless steel tube.Further, for improving the frictional behaviour between support bar 4 and mating holes two friction pair of electric machine joint 2, nitrogenize can be carried out to described surface of friction pair, chromium plating, surfacing, inlay high-abrasive material and install the process such as linear bearing additional.In the present embodiment, chromium plating process is carried out to described support bar 4 surface, nitrogen treatment is carried out to described mating holes surface.
As shown in Figure 1, the respirator of the present embodiment also comprises protection outer tube 5, and this protection outer tube 5 upper end is fixedly connected with described electric machine joint 2, and described electric machine joint 2, slide block 11, flexible pipe 12 and support bar 4 are located in the pore of described protection outer tube 5.Described protection outer tube 5 can prevent well liquid from directly contacting the parts such as flexible pipe 12 and support bar 4, avoid each parts wear accelerate or by well corrosion.And owing to protecting the outer surface of outer tube 5 directly to contact with well liquid, being corroded for preventing it and can making described protection outer tube 5 with corrosion-resistant material or carry out special processing on its outer surface, as applied corrosion-resistant paint etc., protecting.Further, the lower end of described protection outer tube 5 is provided with screen pack 6.This screen pack 6 can be gone into the well in process at oil immersion line motor, by foreign material and large sand filtration beyond oil immersion line motor respirator; In underground work process, also can prevent foreign material and the large grains of sand from entering in oil immersion line motor respirator.The shape of described slide block 11 and the pore shape of described protection outer tube 5 adapt, and this slide block 11 is equipped with in the pore of described protection outer tube 5, and can slide up and down along described pore.Further, for improving the frictional behaviour between slide block 11 and pore two friction pair, nitrogenize can be carried out to described surface of friction pair, chromium plating, surfacing, inlay high-abrasive material and install the process such as linear bearing additional.In the present embodiment, chromium plating process is carried out to the surface of described slide block 11, carry out nitrogen treatment again to after the grinding of described pore circle.
As shown in Figure 1, the elastic device 3 of the present embodiment is extension spring, and this extension spring one end and described slide block 11 fix, and the other end and described electric machine joint 2 fix.Particularly, described flexible pipe 12 is bellows, the former length of this bellows and the former appearance etc. of described extension spring.Described extension spring preferably adopts stainless steel stretched spring.Described bellows can adopt fluorubber bellows, nitrile rubber bellows, flexible neoprene bellow etc.Fluorubber bellows is adopted in the present embodiment.When oil immersion line motor is descending, motor internal stores the reduced space of lubricating oil, and lubricating oil flows into fluorubber bellows through electric machine joint 2, and fluorubber bellows is under pressure and starts to drive stainless steel stretched spring to extend together.Due to oil immersion line motor descending time mover gravity acting, so this step does not consume power of motor.When oil immersion line motor is up, the space that motor internal stores lubricating oil increases, fluorubber bellows is no longer under pressure, under the elastic force effect of stainless steel stretched spring, lubricating oil in fluorubber bellows flows back to oil immersion line motor inside through electric machine joint 2, and oil immersion line motor runs to after top dead center, and fluorubber bellows and stainless steel stretched spring all return to former long status, this step is done work by the elastic force of stainless steel stretched spring, does not also consume power of motor.
As shown in Figure 1, the support bar 4 of the present embodiment is positioned at the center of described bellows, and described extension spring is sheathed on described support bar 4.Under the support bar 4 common support effect with sliding support block, ensure that bellows and extension spring do not bend, only can axially stretching motion.And support bar 4 is located at the center of described bellows, make described stretching motion more steady.
Embodiment two
As shown in Figure 2, the overall structure of the oil immersion line motor respirator of the present embodiment is identical with embodiment one, and difference is: described elastic device 3 is Compress Spring, between the lower end that this Compress Spring is resisted against described protection outer tube 5 and slide block 11.It should be explicitly made clear at this point; the lower end of described protection outer tube 5 not only refers to the position of installing screen pack 6; but the optional position comprised under slide block 11; look for an impetus in the protection optional position of outer tube 5 under slide block 11, allow described Compress Spring be resisted against between this impetus and slide block 11 and just can realize the present invention.Now, when oil immersion line motor is descending, motor internal stores the reduced space of lubricating oil, and lubricating oil flows into fluorubber bellows through electric machine joint 2, and fluorubber bellows is under pressure and starts to be with movable slider 11 to press down Compress Spring together.Due to oil immersion line motor descending time mover gravity acting, so this step does not consume power of motor.When oil immersion line motor is up, the space that motor internal stores lubricating oil increases, fluorubber bellows is no longer under pressure, under the elastic force effect of Compress Spring, lubricating oil in fluorubber bellows flows back to oil immersion line motor inside through electric machine joint 2, and oil immersion line motor runs to after top dead center, and fluorubber bellows and Compress Spring all return to former long status, this step is done work by the elastic force of Compress Spring, does not also consume power of motor.
Embodiment three
As shown in Figure 3,4, the overall structure of the oil immersion line motor respirator of the present embodiment is identical with embodiment one, and difference is: described extension spring and described flexible pipe 12 are integral type setting.That is, by extension spring outer wrapping flexible material, form flexible material outside, extension spring is at interior sandwich elastic hose.
Should be understood that, above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit, for a person skilled in the art, technical scheme described in above-described embodiment can be modified, or equivalent replacement is carried out to wherein portion of techniques feature; And all such modifications and replacement, all should belong to the protection range of claims of the present invention.
Claims (9)
1. the respirator of an oil immersion line motor, comprise the electric machine joint of sealing device and connection sealing device and linear electric motors, it is characterized in that: described sealing device comprises slide block and the flexible pipe for storing linear electric motors internal lubrication oil, the two ends of described flexible pipe are tightly connected with described slide block and electric machine joint respectively; Described respirator also comprises one and moves for driving on described slide block, and the lubricating oil promoted in described flexible pipe recharges the elastic device of linear electric motors.
2. respirator according to claim 1, is characterized in that: described respirator also comprises support bar, and this support bar one end is fixedly connected with described slide block, and the other end is arranged relative to described electric machine joint activity.
3. respirator according to claim 2; it is characterized in that: described respirator also comprises protection outer tube; this protection outer tube upper end is fixedly connected with described electric machine joint, and described electric machine joint, slide block, flexible pipe and support bar are located in the pore of described protection outer tube.
4. respirator according to claim 3, is characterized in that: the lower end of described protection outer tube is provided with screen pack.
5. respirator according to claim 4, is characterized in that: the shape of described slide block and the pore shape of described protection outer tube adapt, and this slide block is equipped with in the pore of described protection outer tube, and can slide up and down along described pore.
6. respirator according to claim 1, is characterized in that: described elastic device is extension spring, and this extension spring one end and described slide block fix, and the other end and described electric machine joint fix.
7. respirator according to claim 6, is characterized in that: described flexible pipe is bellows, the former length of this bellows and the former appearance etc. of described extension spring.
8. respirator according to claim 7, is characterized in that: described support bar is positioned at the center of described bellows, and described extension spring is sheathed on described support bar.
9. respirator according to claim 4, is characterized in that: described elastic device is Compress Spring, between the lower end that this Compress Spring is resisted against described protection outer tube and slide block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410529932.5A CN104319932B (en) | 2014-10-10 | 2014-10-10 | A kind of respirator of oil immersion line motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410529932.5A CN104319932B (en) | 2014-10-10 | 2014-10-10 | A kind of respirator of oil immersion line motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104319932A true CN104319932A (en) | 2015-01-28 |
| CN104319932B CN104319932B (en) | 2017-08-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410529932.5A Active CN104319932B (en) | 2014-10-10 | 2014-10-10 | A kind of respirator of oil immersion line motor |
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| Country | Link |
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| CN (1) | CN104319932B (en) |
Cited By (3)
| 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 |
| CN105507808A (en) * | 2016-01-11 | 2016-04-20 | 东方电气集团东方电机有限公司 | Underground drilling tool motor |
| CN114906308A (en) * | 2022-06-23 | 2022-08-16 | 宁波海伯集团有限公司 | Electric propeller for ship |
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| GB674683A (en) * | 1950-05-06 | 1952-06-25 | Beresford James & Son Ltd | Improvements relating to submersible electric motors |
| CN87214001U (en) * | 1987-10-07 | 1988-08-17 | 陈久全 | Micro-pressure-difference sealing device |
| CN201063477Y (en) * | 2007-04-10 | 2008-05-21 | 胜利油田胜利泵业有限责任公司 | Fully sealed submersible linear motor |
| CN203421367U (en) * | 2013-09-02 | 2014-02-05 | 中国电子科技集团公司第四十九研究所 | High-stability elastic corrugated pipe component |
| CN203626692U (en) * | 2013-12-04 | 2014-06-04 | 丹东波纹管密封有限公司 | Automatic backflow type well head sealing device |
-
2014
- 2014-10-10 CN CN201410529932.5A patent/CN104319932B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB674683A (en) * | 1950-05-06 | 1952-06-25 | Beresford James & Son Ltd | Improvements relating to submersible electric motors |
| CN87214001U (en) * | 1987-10-07 | 1988-08-17 | 陈久全 | Micro-pressure-difference sealing device |
| CN201063477Y (en) * | 2007-04-10 | 2008-05-21 | 胜利油田胜利泵业有限责任公司 | Fully sealed submersible linear motor |
| CN203421367U (en) * | 2013-09-02 | 2014-02-05 | 中国电子科技集团公司第四十九研究所 | High-stability elastic corrugated pipe component |
| CN203626692U (en) * | 2013-12-04 | 2014-06-04 | 丹东波纹管密封有限公司 | Automatic backflow type well head sealing device |
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 |
| CN105507808A (en) * | 2016-01-11 | 2016-04-20 | 东方电气集团东方电机有限公司 | Underground drilling tool motor |
| CN114906308A (en) * | 2022-06-23 | 2022-08-16 | 宁波海伯集团有限公司 | Electric propeller for ship |
| CN114906308B (en) * | 2022-06-23 | 2024-03-01 | 宁波海伯集团有限公司 | Electric propeller for ship |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104319932B (en) | 2017-08-25 |
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Address after: No. 9988 Nanshan District Shennan Road Shenzhen city Guangdong province 518000 Applicant after: HANS LASER TECHNOLOGY INDUSTRY GROUP CO., LTD. Applicant after: Shenzhen Hans Electric Motor Co., Ltd. Address before: 518000 Shenzhen Province, Nanshan District high tech park, North West New Road, No. 9 Applicant before: Dazu Laser Sci. & Tech. Co., Ltd., Shenzhen Applicant before: Shenzhen Hans Electric Motor Co., Ltd. |
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