CN104134965B - Electric Submersible Pump Unit Modular electrical cable end - Google Patents
Electric Submersible Pump Unit Modular electrical cable end Download PDFInfo
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- CN104134965B CN104134965B CN201410320592.5A CN201410320592A CN104134965B CN 104134965 B CN104134965 B CN 104134965B CN 201410320592 A CN201410320592 A CN 201410320592A CN 104134965 B CN104134965 B CN 104134965B
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- pump unit
- submersible pump
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Abstract
The present invention relates to a kind of Electric Submersible Pump Unit Modular electrical cable end.Mainly solve the existing Electric Submersible Pump Unit problem that cable connection procedure is complicated during going into the well, quality of connection is low.It is characterized in that: the internal motor down-lead that is fixed with of described joint (2) connects plug (5), motor down-lead connects the connection of plug (5) top has cable core to connect plug (11), cable core connects the upper end of plug (11) and connects cable (7), and cable (7) outside is cased with several hold-down rings (9), being equipped with sealing ring (10) between the most adjacent two hold-down rings (9), hold-down ring (9) top is fixed by pressure strip (8).When this Electric Submersible Pump Unit Modular electrical cable end can realize Electric Submersible Pump Unit underground work, cable is connected with the quick of submersible electric machine with oil, and field operation amount is greatly decreased, and improves cable quality of connection.
Description
Technical field
The present invention relates to oilfield, a kind of Electric Submersible Pump Unit Modular electrical cable end.
Background technology
At present, conventional Electric Submersible Pump Unit uses wound form connected mode to carry out the connection of cable during going into the well, and connection procedure is more complicated, and owing to construction site condition is limited, quality of connection is easily subject to impact, and finally affects Electric Submersible Pump Unit reliability of operation.When Electric Submersible Pump Unit is applied under the severe natural conditions such as extremely frigid zones, torrid areas, desert area, and difficulty of construction is greatly improved, and this brings the biggest difficulty to the connection of cable.Such as: when extremely frigid zones is constructed cable insulation can hardening, become fragile, be easily damaged cable insulation cause the insulating properties of cable to reduce when operation；It addition, wound form cabled manner needs the operation of naked hand, this is carried out at low temperatures is extremely difficult.Meanwhile, current Electric Submersible Pump Unit, after cable connects, needs to refill dynamo oil, adds working procedure, reduce efficiency of construction.
Summary of the invention
First of all for overcoming existing Electric Submersible Pump Unit cable connection procedure complexity, the low deficiency of quality of connection during going into the well, the present invention provides a kind of Electric Submersible Pump Unit Modular electrical cable end, when this Electric Submersible Pump Unit Modular electrical cable end can realize Electric Submersible Pump Unit underground work, cable is connected with the quick of submersible electric machine with oil, field operation amount is greatly decreased, improve cable quality of connection, meanwhile, this end is not required to refill dynamo oil upon connection, improves production efficiency.
The technical scheme is that a kind of Electric Submersible Pump Unit Modular electrical cable end, including joint, it is fixed with motor down-lead inside described joint and connects plug, motor down-lead connects the connection of plug top has cable core to connect plug, cable core connects the upper end of plug and connects cable, and Exterior cable is cased with several hold-down rings, being equipped with sealing ring between the most adjacent two hold-down rings, hold-down ring top is fixed by pressure strip.
Described joint is internally connected with and protects central siphon, protects and is equipped with spline housing inside central siphon, and joint upper inner is provided with the groove of circumference, and spline housing upper outside has the boss matched with above-mentioned groove, and boss outer surface is inlaid with O.
Described upper end of joint is externally connected to protective board, and cable is fixed on joint by protective board.
There is advantages that owing to taking such scheme, motor down-lead is linked together by this end with cable tail, use modularization, during in-site installation, only joint and motor top connection need to be connected by screw, instead of the wound form end connection work that original workload is the biggest, easy to connect, it is particularly suitable for high temperature, extremely frigid zones；And improve the quality of connection between cable core and motor down-lead, add Electric Submersible Pump Unit operational reliability；Decrease the use of poisonous and harmful substance, more environmentally-friendly.Meanwhile, use this Modular electrical cable end, be not required to refill dynamo oil after being connected with motor, substantially reduce the engineering time, improve production efficiency.
Accompanying drawing explanation
Fig. 1 is present invention structural representation when being connected with motor；
Fig. 2 is present invention structural representation when being not connected with；
Fig. 3 is the enlarged drawing in Fig. 1 at I.
O on 1-in figure, 2-joint, 3-rubber blanket, 4-protects central siphon, and 5-motor down-lead connects plug, 6-protective board, 7-cable, 8-pressure strip, 9-hold-down ring, 10-cable O, 11-cable core connects plug, 12-spline housing, O under 13-, 14-bottom clamping plate, spindle nose on 15-motor, 16-motor top connection.
Detailed description of the invention
The invention will be further described below in conjunction with the accompanying drawings:
By shown in Fig. 1 to Fig. 3, a kind of Electric Submersible Pump Unit Modular electrical cable end, including joint 2, described joint 2 interior lower end is fixed with motor down-lead and connects plug 5, motor down-lead connects the connection of plug 5 top has cable core to connect plug 11, cable core connects the upper end of plug 11 and connects cable 7, wherein cable core connects plug 11 and joint 2 inside put by one section of cable 7, this section of cable 7 outside is cased with several hold-down rings 9, it is equipped with sealing ring 10 between the most adjacent two hold-down rings 9, hold-down ring 9 top is fixed by pressure strip 8, pressure strip 8 compresses hold-down ring 9, thus compresses seal 10, make to seal around cable core.Owing to using said structure, use multiple O RunddichtringO 10 that every heart yearn of cable is individually sealed, it is possible to achieve the highest seal pressure.Through test determination, by O RunddichtringO, cable core being carried out sealing and can realize the seal pressure of minimum 6MPa, reliability is the highest.Meanwhile, use O RunddichtringO that cable core carries out sealing and can also effectively simplify end manufacture process, reduce raw material types (particularly poisonous and harmful substance), reduce packaging technology requirement.
Described joint 2 upper end is externally connected to protective board 6, and cable 7 is fixed on joint 2 by protective board 6, and protective board 6 compresses cable armour skin after installing, and prevents the upper and lower play of cable.Described joint 2 is internally connected with and protects central siphon 4, protect central siphon 4 inside and be equipped with spline housing 12, and protect and have gap between central siphon 4 and spline housing 12, dynamo oil free air space can be provided, joint 2 upper inner is provided with the groove of circumference, the step that inner side is recessed is arranged at i.e. joint 2 top, spline housing 12 upper outside has the boss matched with above-mentioned groove, and boss outer surface is inlaid with O 1, when this end is not connected with motor, upper O 1 contacts with the groove inner wall of joint 2, makes to protect the clearance seal between central siphon 4 and spline housing 12, prevents dynamo oil from leaking.Meanwhile, the internal rubber blanket 3 being equipped with horizontal direction of spline housing 12, rubber blanket 3 and spline housing 12 inner chamber are interference fit, make spline housing 12 inside also keep sealing, prevent the dynamo oil within end to run off.Joint 2 lower inside and protect and be provided with lower O 13 between central siphon 4, increases and protects the sealing between central siphon 4 and joint 2.Therefore, this end is when being not connected with, generally in sealing state, it is to avoid motor internal oil leaks so that it is be not required to oiling again with motor after being connected.
This end uses modular construction, the connection between cable core and motor down-lead is had been completed in factory, be equivalent to be integrated with original end and the function of part motor head, and the flange bottom joint 2 reserves motor down-lead socket, make it when being connected with motor, together with only joint 2 need to being bolted on motor top connection 16, motor down-lead connects plug 5 and is then connected with motor internal lead-in wire, the connection work of cable and Electric Submersible Pump Unit can be completed, it is not required to carry out cable again be intertwined and connected, it is greatly saved the operating time, particularly with high temperature extremely frigid zones, greatly reduce difficulty of construction, decrease the workload of workman, also improve the quality of connection between cable core and motor down-lead, enhance the operational reliability of Electric Submersible Pump Unit.Simultaneously, upon connection, on lower joint motor, spindle nose 15 is inserted into spline housing 12 inside, promotes spline housing 12 up, makes the upper O 1 in spline housing 12 exterior boss depart from joint 2 inwall, thus open spline housing 12 and the oil circuit protected between central siphon 2, motor cavity is made to communicate with end inner chamber, it is ensured that during unit operating, oil circuit is unimpeded, and owing to whole connection procedure not having dynamo oil to run off, do not have gas and enter the situation of electric pump unit inner chamber, make connection rear motor exempt from oiling yet.
Claims (2)
1. an Electric Submersible Pump Unit Modular electrical cable end, including joint (2), it is characterized in that: the internal motor down-lead that is fixed with of described joint (2) connects plug (5), motor down-lead connects the connection of plug (5) top has cable core to connect plug (11), cable core connects the upper end of plug (11) and connects cable (7), and cable (7) outside is cased with several hold-down rings (9), being equipped with sealing ring (10) between the most adjacent two hold-down rings (9), hold-down ring (9) top is fixed by pressure strip (8)；Described joint (2) is internally connected with and protects central siphon (4), protect central siphon (4) inside and be equipped with spline housing (12), joint (2) upper inner is provided with groove, and spline housing (12) upper outside has the boss matched with above-mentioned groove, and boss outer surface is inlaid with O (1).
Electric Submersible Pump Unit Modular electrical cable end the most according to claim 1, it is characterised in that: described joint (2) upper end is externally connected to protective board (6), and cable (7) is fixed on joint (2) by protective board (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410320592.5A CN104134965B (en) | 2014-07-08 | 2014-07-08 | Electric Submersible Pump Unit Modular electrical cable end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410320592.5A CN104134965B (en) | 2014-07-08 | 2014-07-08 | Electric Submersible Pump Unit Modular electrical cable end |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104134965A CN104134965A (en) | 2014-11-05 |
| CN104134965B true CN104134965B (en) | 2016-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410320592.5A Active CN104134965B (en) | 2014-07-08 | 2014-07-08 | Electric Submersible Pump Unit Modular electrical cable end |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4679875A (en) * | 1985-12-09 | 1987-07-14 | Trw Inc. | Attachment of electric cable to submergible pump motor heads |
| CN2122444U (en) * | 1992-03-28 | 1992-11-18 | 胜利石油管理局无杆采油泵公司 | Connector of submersible oil (water) motor and cable |
| CN2166533Y (en) * | 1993-05-26 | 1994-05-25 | 辽河石油勘探局职工技术协作服务中心 | Special cable connector for oil immersible motor |
| US5567170A (en) * | 1994-12-07 | 1996-10-22 | Camco International Inc. | Plug-in pothead |
| CN201238100Y (en) * | 2008-06-20 | 2009-05-13 | 大庆油田力神泵业有限公司 | Plug-in cable head of oil-submersible electric pump |
-
2014
- 2014-07-08 CN CN201410320592.5A patent/CN104134965B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4679875A (en) * | 1985-12-09 | 1987-07-14 | Trw Inc. | Attachment of electric cable to submergible pump motor heads |
| CN2122444U (en) * | 1992-03-28 | 1992-11-18 | 胜利石油管理局无杆采油泵公司 | Connector of submersible oil (water) motor and cable |
| CN2166533Y (en) * | 1993-05-26 | 1994-05-25 | 辽河石油勘探局职工技术协作服务中心 | Special cable connector for oil immersible motor |
| US5567170A (en) * | 1994-12-07 | 1996-10-22 | Camco International Inc. | Plug-in pothead |
| CN201238100Y (en) * | 2008-06-20 | 2009-05-13 | 大庆油田力神泵业有限公司 | Plug-in cable head of oil-submersible electric pump |
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| Publication number | Publication date |
|---|---|
| CN104134965A (en) | 2014-11-05 |
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