CN2571991Y - Feed-through device for high-pressure borehole of oil-submerged electric pump - Google Patents
Feed-through device for high-pressure borehole of oil-submerged electric pump Download PDFInfo
- Publication number
- CN2571991Y CN2571991Y CN 02245839 CN02245839U CN2571991Y CN 2571991 Y CN2571991 Y CN 2571991Y CN 02245839 CN02245839 CN 02245839 CN 02245839 U CN02245839 U CN 02245839U CN 2571991 Y CN2571991 Y CN 2571991Y
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- feed
- sealing
- cable
- electric pump
- oil
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- Expired - Fee Related
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Abstract
The utility model relates to a feed through device for the high-pressure well opening of an oil-submerged electric pump, which belongs to a connecting device of the cable of an electric system. The utility model is mainly used for the high-pressure well opening of the oil-submerged electric pump of an oil industry aspect and a connecting sealing device which is exclusively used with high and low pressure transition and needs to cross an electric cable. The utility model is mainly characterized in that the utility model is composed of a shell body, a leading wire and a sealing part. The upper end of a feed through wire 1 is connected by a pressing cap 2 and a protective rack 3. A cable 4 passes through the feed through device and is sealed by a sealing ring 5 and solidifying seal 7. The feed through device is locked by a locking component 8 when the feed through device is arranged on a well opening 9. The sealing stressing part of the device on the well opening uses a hard connecting sealing mode and thus the failure incipient fault of the damage of a cable protective sleeve layer is effectively eliminated and the difficult problem that the well opening of the oil-submerged electric pump can not bear the pressure higher than 20MPa is solved. The product can be previously produced in a room and thus site operation procedures are reduced and a construction quality is guaranteed.
Description
One, affiliated technical field: submersible electric pump high pressure opening feedthrough device belongs to the linkage of a kind of cable of power system.Be mainly used in the submersible electric pump high-pressure well mouth of petroleum industry aspect and exist the high-low pressure transition need pass through a kind of special-purpose sealing device that connects of power cable.
Two, technical background: current, China land or oil field, shallow sea high-pressure well mouth also do not have special cable to pass through sealing device, and common method is, peel off the armouring of power cable, add rubber sealing at restrictive coating.This its sealing pretightning force and well inner high voltage of passing through directly is added on the cable cover(ing) layer, if sheath is an aluminum, the lead behind the pressurized is elongated, attenuation or distortion, thus reduce insulation, cause the technology failure.And this technological operation requires height, the time is long, the construction success rate is low; And well head pressure surpasses 20MPa, and sealing just can't be carried out.
Three, summary of the invention: for improving cable application life, reduce the fault rate of cable, simplify working procedure, increase the benefit, improve a kind of submersible electric pump high-pressure well mouth feedthrough device of design, substitute at present with the direct sealing technology of cable.This device mainly is made up of housing, lead-in wire and hermetic unit, and feedthrough line upper end is connected and fixed by pressure cap, fender bracket, and cable passes feedthrough device, and it is cured sealing by seal, when feedthrough device is contained in well head, by the tight part locking of feedback.This device global shape is " a pigtail shape ", and external diameter is little, helps using at the high-pressure well mouth of small casing, and the solidifying shell intracoelomic cavity is the egg type structure, and power lead and housing are solidified togather, and the lower end is provided with cushion rubber locking, forms double containment; Outer steel structure and well head sealing, its influence that is not stressed that goes between.
Because this device is adopting the hard seal pattern that is connected with well head sealing force part, stopped the potential faults that cable cover(ing) damages effectively, adhesive curing of egg type chamber and cushion rubber locking mechanism have been adopted in this device inside in addition, have solved the submersible electric pump well head can not bear＞difficult problem of 20MPa pressure.Also having this product is can be made into indoor in advance, has significantly reduced on-site construction processes, has guaranteed the quality in the work progress again, has improved benefit.
Four, description of drawings: Fig. 1 is a submersible electric pump high-pressure well mouth feedthrough device structural representation
Fig. 2 is this structural representation that installs single feedthrough
Annotate 1 among the figure, feedthrough line 2, pressure cap 3, fender bracket 4, cable 5, sealing ring 6, housing 7, solidify sealing 8, locking member 9, well head 10, housing 11, tail end 12, lead-in wire 13, solidify the chamber
Five, embodiment explanation: when this device is installed on a bite high-pressure well, often need to install the feedthrough device more than two, the profile of each feedthrough is " pigtail " shape, is commonly called as the pigtail line, and inwall is the egg type mode configuration.As seen from the figure, feedthrough line 1 upper end is connected by pressure cap 2, fender bracket 3, and cable 4 passes this feedthrough device, and is sealed by sealing ring (5), curing sealing 7, when feedthrough device is contained in well head 9, by locking member 8 lockings.Seal 8 is made of sealing ring and locking screw.Single feedthrough device is made of housing (10) and tail end 11 and locking member 8, is shaped on egg type in the housing 10 and solidifies chamber 13, and lead-in wire 12 is by the two ends at center in the housing 10.If when well head is installed at the scene, power lead is passed the feedthrough housing, solidify adhesive curing with high insulation, crimping cable connects copper sheathing at the two ends of lead-in wire.Load onto rubber pad is connected to tighten with the well head hanger and gets final product in feedthrough device upper end.If with original cable method of attachment, each needs two tie points import and outlet, and 4 tie points are promptly arranged, if use this feedthrough device, cable passes when connecting, and imports and exports each and needs a tie point, promptly than original-pack two tie points that save, and easy construction, guaranteed quality, increase the benefit obviously.
Claims (2)
1, submersible electric pump high-pressure well mouth feedthrough device; mainly form by housing, lead-in wire, hermetic unit; it is characterized in that feedthrough line (1) upper end is connected by pressure cap (2), fender bracket (3); cable (4) passes feedthrough device by sealing ring (5); solidify sealing (7) sealing; when this feedthrough device is contained in well head (9), lock by locking member (8).
2, by the described submersible electric pump high-pressure well mouth of claim 1 feedthrough device, it is characterized in that single feedthrough is made of housing (10) and tail end (11) and locking member (8), locking member (8) is made of sealing ring and lock-screw, be shaped on egg type in the housing (10) and solidify chamber (13), lead-in wire (12) is by the two ends at the interior center of housing (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02245839 CN2571991Y (en) | 2002-08-27 | 2002-08-27 | Feed-through device for high-pressure borehole of oil-submerged electric pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02245839 CN2571991Y (en) | 2002-08-27 | 2002-08-27 | Feed-through device for high-pressure borehole of oil-submerged electric pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2571991Y true CN2571991Y (en) | 2003-09-10 |
Family
ID=33717325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02245839 Expired - Fee Related CN2571991Y (en) | 2002-08-27 | 2002-08-27 | Feed-through device for high-pressure borehole of oil-submerged electric pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2571991Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103050912A (en) * | 2012-12-07 | 2013-04-17 | 重庆昌瑞电器制造有限公司 | Wellhead cable penetration device with upper part capable of universally turning |
-
2002
- 2002-08-27 CN CN 02245839 patent/CN2571991Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103050912A (en) * | 2012-12-07 | 2013-04-17 | 重庆昌瑞电器制造有限公司 | Wellhead cable penetration device with upper part capable of universally turning |
| CN103050912B (en) * | 2012-12-07 | 2016-06-08 | 重庆昌瑞电器制造有限公司 | The wellhead cable penetrating device of the top universal turning of energy |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |