CN109217545A - Cable lead-out wire static sealing structure of submersible permanent magnet motor - Google Patents
Cable lead-out wire static sealing structure of submersible permanent magnet motor Download PDFInfo
- Publication number
- CN109217545A CN109217545A CN201710516380.8A CN201710516380A CN109217545A CN 109217545 A CN109217545 A CN 109217545A CN 201710516380 A CN201710516380 A CN 201710516380A CN 109217545 A CN109217545 A CN 109217545A
- Authority
- CN
- China
- Prior art keywords
- out wire
- lead
- outgoing line
- cable
- outer cylinder
- 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.)
- Pending
Links
- 230000003068 static effect Effects 0.000 title claims abstract description 26
- 238000007789 sealing Methods 0.000 title claims abstract description 24
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 11
- 229910052802 copper Inorganic materials 0.000 claims description 11
- 239000010949 copper Substances 0.000 claims description 11
- 238000012856 packing Methods 0.000 claims description 9
- 238000009413 insulation Methods 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 description 4
- 230000009977 dual effect Effects 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 239000002390 adhesive tape Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Classifications
-
- 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
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
- H02K5/225—Terminal boxes or connection arrangements
-
- 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
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention discloses a static sealing structure of a cable outgoing line of a submersible permanent magnet motor, which comprises a motor stator outer cylinder and a cable outgoing line arranged in the motor stator outer cylinder; the outgoing line locking nut and the outgoing line press-fitting nut are sequentially sleeved on the cable outgoing line; the part of the cable outgoing line, which is positioned in the outer cylinder of the motor stator, is sleeved with a primary outgoing line sealing ring, and the part of the cable outgoing line, which is positioned in the outgoing line locking nut, is sleeved with a secondary outgoing line sealing coil; the front end of the outgoing line locking nut is connected with the rear end of the motor stator outer cylinder through threads, and the front end of the outgoing line press-fitting nut is connected with the rear end of the outgoing line locking nut through threads. The invention realizes the static sealing at the cable leading-out wire of the submersible permanent magnet motor and solves the problem of burning the motor due to sealing failure. The dual-outgoing-line static sealing structure can bear 25MPa hydraulic pressure independently without leakage. And the insulation resistance of the stator coil is larger than 500M omega by using 1000V megaohm meter.
Description
[technical field]
The invention belongs to industrial gas oil DP technology technical fields, are related to a kind of latent oil magneto cable extraction
Line static seal structure.
[background technique]
Latent oil magneto cable pigtail static seal is always one of the main bugbear for influencing motor reliability.Work as motor
When depth of falling well is more than 1500 meters, limiting case well-sinking pressure is greater than 15MPa, while there is also corrosive media in well liquid,
Lead-out wire sealing structure is limited by space limitation, and problem is more complicated.Conventional static seal can be sealed by 25MPa in pressurization cylinder
Test.But after the long period of underground, extraction linear sealing still will appear quiet close caused by the dissolution of lead-out wire rubber insulation
Envelope failure.
[summary of the invention]
It is an object of the invention to be directed to lead-out wire static seal reliability hidden danger, a kind of latent oil magneto cable is provided and is drawn
Outlet static seal structure, the structure are lead-out wire dual static sealing structure, and are mounted with that pure copper sheet reinforcing is close at locking nut
Envelope avoids failing because of lead-out wire static seal, and well liquid enters the problem of stator coil burns motor, extends underground latent oil magneto
The Rodless oil extraction system of driving is excused from a college course the phase.
In order to achieve the above objectives, the present invention is achieved by the following scheme:
A kind of latent oil magneto cable pigtail static seal structure, including motor stator outer cylinder and to be installed on motor fixed
The cable pigtail of sub- outer barrel；Lead-out wire locking nut and lead-out wire press-fited nut are successively set on cable pigtail；Electricity
Cable lead-out wire is located at the suit level-one lead-out wire sealing ring of the part in motor stator outer cylinder, and cable pigtail is located at lead-out wire locking
Part in nut is set with second level lead-out wire encapsulated coil；The front end of lead-out wire locking nut and the front end of motor stator outer cylinder are logical
Threaded connection is crossed, the front end of lead-out wire press-fited nut and the rear end of lead-out wire locking nut are connected through a screw thread.
A further improvement of the present invention lies in that:
Primary seal pad is provided between lead-out wire locking nut and motor stator outer cylinder.
Primary seal pad is copper packing.
Secondary seal pad is provided between lead-out wire press-fited nut and lead-out wire locking nut.
Secondary seal pad is copper packing.
Level-one lead-out wire sealing ring and second level lead-out wire encapsulated coil are rubber seal.
Compared with prior art, the invention has the following advantages:
Lead-out wire of the present invention uses dual static sealing structure, is mounted with that pure copper sheet strengthens sealing at locking nut.It is anti-
Only well liquid is corroded, and attached the double-deck oil-submersible cable special-purpose water-proof adhesive tape outside stator lead-out wire rubber insulation.The present invention realizes
Static seal at latent oil magneto cable pigtail, solves the problems, such as to burn motor because of seal failure.Dual lead-out wire
Static seal structure is individually able to bear the hydraulic no leakage of 25MPa.It is big with 1000V megaohms of table look-up fixed subcoil insulating resistance
In 500M Ω.
[Detailed description of the invention]
Fig. 1 is latent oil magneto cable pigtail static seal structure profile construction schematic diagram of the present invention.
Wherein: 1- cable pigtail；2- lead-out wire press-fited nut；3- second level lead-out wire sealing ring；4- secondary seal pad；5-
Lead-out wire locking nut；6- primary seal pad；7- level-one lead-out wire sealing ring；8- motor stator outer cylinder.
[specific embodiment]
The invention will be described in further detail with reference to the accompanying drawing:
Referring to Fig. 1, latent oil magneto cable pigtail static seal structure of the present invention, including motor stator outer cylinder 8 and
The cable pigtail 1 being installed on inside motor stator outer cylinder 8；It is successively set with lead-out wire locking nut 5 on cable pigtail 1 and draws
Outlet press-fited nut 2；Cable pigtail 1 is located at the suit level-one lead-out wire sealing ring 7 of the part in motor stator outer cylinder 8, cable
Lead-out wire 1 is located at the suit second level lead-out wire encapsulated coil 3 of the part in lead-out wire locking nut 5；Before lead-out wire locking nut 5
It holds and is connected through a screw thread with the front end of motor stator outer cylinder 8, front end and the lead-out wire locking nut 5 of lead-out wire press-fited nut 2
Rear end is connected through a screw thread.Primary seal pad 6 is provided between lead-out wire locking nut 5 and motor stator outer cylinder 8.Primary seal
Pad 6 is copper packing.Secondary seal pad 4 is provided between lead-out wire press-fited nut 2 and lead-out wire locking nut 5.Secondary seal pad 4 is
Copper packing.Level-one lead-out wire sealing ring 7 and second level lead-out wire encapsulated coil 3 are rubber seal.
The principle of the present invention:
Cable pigtail 1 is located inside motor stator outer cylinder 8, to prevent well liquid from entering motor stator coil, first in cable
Level-one lead-out wire sealing ring 7 and primary seal copper packing 6 are inserted on lead-out wire 1, by outside lead-out wire locking nut 5 and motor stator
Cylinder 8 is threadedly coupled, and applies axial compressive force to level-one lead-out wire sealing ring, so that 7 radial deformation of level-one lead-out wire sealing ring, reaches
Static seal effect, although outside primary seal copper packing 6 can pressure-bearing 60MPa, between lead-out wire locking nut 5 and cable pigtail 1
It cannot be fully sealed, equally need to be furnished with second level lead-out wire in lead-out wire press-fited nut front end by installing lead-out wire press-fited nut 2 additional
Sealing ring 3 and secondary seal copper packing 4 realize second level static seal.
The above content is merely illustrative of the invention's technical idea, and this does not limit the scope of protection of the present invention, all to press
According to technical idea proposed by the present invention, any changes made on the basis of the technical scheme each falls within claims of the present invention
Protection scope within.
Claims (6)
1. a kind of latent oil magneto cable pigtail static seal structure, which is characterized in that including motor stator outer cylinder (8) and
It is installed on the internal cable pigtail (1) of motor stator outer cylinder (8)；Cable pigtail is successively set with lead-out wire locking screw on (1)
Female (5) and lead-out wire press-fited nut (2)；Cable pigtail (1) is located at the suit level-one of the part in motor stator outer cylinder (8) and draws
Linear sealing circle (7), cable pigtail (1) are located at the suit second level lead-out wire encapsulated coil of the part in lead-out wire locking nut (5)
(3)；The front end of lead-out wire locking nut (5) and the front end of motor stator outer cylinder (8) are connected through a screw thread, lead-out wire press-fited nut
(2) rear end of front end and lead-out wire locking nut (5) is connected through a screw thread.
2. latent oil magneto cable pigtail static seal structure according to claim 1, which is characterized in that lead-out wire lock
Primary seal pad (6) are provided between tight nut (5) and motor stator outer cylinder (8).
3. latent oil magneto cable pigtail static seal structure according to claim 2, which is characterized in that primary seal
Padding (6) is copper packing.
4. latent oil magneto cable pigtail static seal structure according to claim 1, which is characterized in that lead-out wire pressure
Secondary seal pad (4) are provided between loading nut (2) and lead-out wire locking nut (5).
5. latent oil magneto cable pigtail static seal structure according to claim 4, which is characterized in that secondary seal
Padding (4) is copper packing.
6. latent oil magneto cable pigtail static seal structure according to claim 1, which is characterized in that level-one is drawn
Linear sealing circle (7) and second level lead-out wire encapsulated coil (3) are rubber seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710516380.8A CN109217545A (en) | 2017-06-29 | 2017-06-29 | Cable lead-out wire static sealing structure of submersible permanent magnet motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710516380.8A CN109217545A (en) | 2017-06-29 | 2017-06-29 | Cable lead-out wire static sealing structure of submersible permanent magnet motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109217545A true CN109217545A (en) | 2019-01-15 |
Family
ID=64960652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710516380.8A Pending CN109217545A (en) | 2017-06-29 | 2017-06-29 | Cable lead-out wire static sealing structure of submersible permanent magnet motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109217545A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB730973A (en) * | 1952-07-11 | 1955-06-01 | Nat Res Dev | Improvements in or relating to gland devices for electric cables or fluid hose |
| RU2007126262A (en) * | 2007-07-10 | 2009-01-20 | Открытое акционерное общество "Акционерна компани "Корвет" (ОАО "АК "Корвет") (RU) | CABLE INPUT WITH DOUBLE SEAL PACKAGE |
| JP3192145U (en) * | 2014-05-19 | 2014-07-31 | 全冠企業有限公司 | Multiple airtight waterproof and tensile cable fixing connector |
| CN104659730A (en) * | 2013-11-21 | 2015-05-27 | 西安大昱光电科技有限公司 | Explosion proof type cable entry mechanism |
| CN205646753U (en) * | 2016-05-27 | 2016-10-12 | 泰州市得尔机电制造有限公司 | Two sealed cable sealing joint suitable for press from both sides tight various armoured cable |
| CN205876260U (en) * | 2016-07-28 | 2017-01-11 | 中国石油化工股份有限公司 | Pipe type cable seals head |
| US20170018989A1 (en) * | 2013-12-16 | 2017-01-19 | Ge Oil & Gas Esp, Inc. | Sealing method for insulated conductors in electric submersible pump pothead connectors |
| CN206962616U (en) * | 2017-06-29 | 2018-02-02 | 中国石油天然气股份有限公司 | Cable lead-out wire static sealing structure of submersible permanent magnet motor |
-
2017
- 2017-06-29 CN CN201710516380.8A patent/CN109217545A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB730973A (en) * | 1952-07-11 | 1955-06-01 | Nat Res Dev | Improvements in or relating to gland devices for electric cables or fluid hose |
| RU2007126262A (en) * | 2007-07-10 | 2009-01-20 | Открытое акционерное общество "Акционерна компани "Корвет" (ОАО "АК "Корвет") (RU) | CABLE INPUT WITH DOUBLE SEAL PACKAGE |
| CN104659730A (en) * | 2013-11-21 | 2015-05-27 | 西安大昱光电科技有限公司 | Explosion proof type cable entry mechanism |
| US20170018989A1 (en) * | 2013-12-16 | 2017-01-19 | Ge Oil & Gas Esp, Inc. | Sealing method for insulated conductors in electric submersible pump pothead connectors |
| JP3192145U (en) * | 2014-05-19 | 2014-07-31 | 全冠企業有限公司 | Multiple airtight waterproof and tensile cable fixing connector |
| CN205646753U (en) * | 2016-05-27 | 2016-10-12 | 泰州市得尔机电制造有限公司 | Two sealed cable sealing joint suitable for press from both sides tight various armoured cable |
| CN205876260U (en) * | 2016-07-28 | 2017-01-11 | 中国石油化工股份有限公司 | Pipe type cable seals head |
| CN206962616U (en) * | 2017-06-29 | 2018-02-02 | 中国石油天然气股份有限公司 | Cable lead-out wire static sealing structure of submersible permanent magnet motor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206962616U (en) | Cable lead-out wire static sealing structure of submersible permanent magnet motor | |
| CN105570465A (en) | Labyrinth type magnetic fluid sealing device | |
| CN106090238A (en) | A kind of staggered device for sealing magnetic fluid of split-type | |
| CN206592537U (en) | A kind of screw plug of draining the oil of the self-styled mechanism of band | |
| CN106151526A (en) | A kind of split-type labyrinth type device for sealing magnetic fluid | |
| CN106917900A (en) | A kind of double nargin normally closed solenoid valves of 2/2-way | |
| CN104633128A (en) | Device for improving magnetic liquid sealing pressure endurance capacity | |
| CN109217545A (en) | Cable lead-out wire static sealing structure of submersible permanent magnet motor | |
| CN103700465B (en) | A kind of electromagnet | |
| CN103485948A (en) | Protection high-pressure oil pipe | |
| CN205877002U (en) | Labyrinth device for sealing magnetic fluid | |
| CN203670796U (en) | Combined sealing device for sealing liquid | |
| CN102359690A (en) | Safety anti-explosion self-sealing rotary compensator | |
| CN209083958U (en) | A kind of speed reducer shaft sealing device | |
| CN204153147U (en) | Pumping anti-leak mechanical seal device | |
| CN205877201U (en) | Buffering formula device for sealing magnetic fluid | |
| CN209615309U (en) | A kind of fixation device of axial direction part positioning | |
| JP7199365B2 (en) | Junction bodies, fittings, hydraulic systems for the passage of fluid between two hydraulic circuits, and associated mounting processes | |
| CN206682494U (en) | A kind of degasification bolt device | |
| CN101893094A (en) | Actuator cylinder | |
| CN106403420A (en) | Double-stage or multi-stage pressure balance cylinder for refrigerant charging machine | |
| CN105065673A (en) | Double-thread sealing device of water pump turbine | |
| CN205780032U (en) | A kind of modified model oil cylinder cylinder cap seals structure | |
| CN211058981U (en) | Structure for preventing refrigerant leakage | |
| CN205503984U (en) | From super high -pressure dynamic sealing external member of centering |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |