CN102384076A - Digital-control reciprocating balancing and damping device for electric submergible pump - Google Patents
Digital-control reciprocating balancing and damping device for electric submergible pump Download PDFInfo
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- CN102384076A CN102384076A CN2011103175926A CN201110317592A CN102384076A CN 102384076 A CN102384076 A CN 102384076A CN 2011103175926 A CN2011103175926 A CN 2011103175926A CN 201110317592 A CN201110317592 A CN 201110317592A CN 102384076 A CN102384076 A CN 102384076A
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- overcoat
- piston
- casing
- reciprocal
- inner chamber
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Abstract
The inventions relates to a digital-control reciprocating balancing and damping device for an electric submergible pump. The balancing and damping device is characterized in that the device is provided with a casing, the upper end and the lower end of the casing are respectively provided with internal threads, the lower part of the inner cavity of the casing is provided with a blind end, and a buffering flow hole is formed on the outer wall at the lower part of the casing; and a piston is arranged in the inner cavity of the casing, and a spring is arranged between the piston and the blind end of the casing. The device provided by the invention has the advantages that damage to cables in operation of equipment is remarkably reduced, failure rate is decreased and the service lift of the whole equipment is improved.
Description
Technical field
The invention belongs to a kind of oil field down-hole oil production equipment, the reciprocal submersible electric pump balancing damping of particularly a kind of numerical control device.
Background technique
" the reciprocal submersible electric pump of numerical control " (patent No. 200410050431.5) with China's independent intellectual property right adopted by oil recovery enterprise of domestic and international tens of family, and in production practices, shows the remarkable superiority that its energy-saving and environmental protection, intelligent remote are regulated and control, enhance productivity, are widely used and reduced cost day by day.But the cable fault that in producing use, occurs causes removing the increase of well operations and the shortening of pump detection period, has become the whole system restraining factors in working life.Study carefully the reason that it causes cable fault; Mainly be the reciprocal submersible electric pump of numerical control when operation, its mover drives plunger and moves downwards, need pause several seconds in the lower end that runs to the pump housing when plunger; Wait for that pump chamber is full of well liquid; Upwards operation gives rise to ground to well liquid then, and this run action is frequently back and forth carried out.When need pausing several seconds the time in the lower end that plunger runs to the pump housing, mover bottom moment is contact equilibrium screen casing bottom with sudden force, causes the integral body vibrations of equipment; Cable extension is hung, gather and be worn, so that cable insulation damages and causes electric leakage; Cause electric pump not work owing to can't supply power; Must play well servicing, not only cause environmental pollution, and the maintenance expenses of consume expensive.
Summary of the invention
The purpose of this invention is to provide the reciprocal submersible electric pump balancing damping of a kind of numerical control device, can significantly reduce the damage of cable in the equipment operation, reduce rate of fault, improve the working life of entire equipment.
The objective of the invention is to realize through following technological scheme: it is characterized in that being provided with overcoat, the overcoat upper and lower end is provided with internal thread respectively, and the bottom of overcoat inner chamber is a cecum, and the buffer stream metering-orifice is set on the outer wall of its external sleeve bottom; Overcoat inner chamber built-up piston is provided with spring between the cecum of piston and overcoat.
Above-mentioned overcoat surface of internal cavity is provided with the wear-and corrosion-proof metal layer, and the outer circumferential face of piston is provided with the wear-and corrosion-proof metal layer equally, and spring adopts stainless steel material.
The maximum effectively working depth of above-mentioned overcoat inner chamber is 150mm, and the overcoat intracavity diameter is 52mm; The diameter of buffer stream metering-orifice is 6-8 mm.
Good effect of the present invention is: can significantly reduce the damage of cable in the equipment operation, reduce rate of fault, improve the working life of entire equipment.
Description of drawings
Fig. 1 is a structure sectional view of the present invention.
Embodiment
See Fig. 1; Concrete structure of the present invention is following: overcoat 4 upper and lower ends respectively are provided with upper and lower internal thread; The bottom of overcoat 4 inner chambers is a cecum; The maximum effectively working depth L of overcoat 4 inner chambers is 150mm (being overcoat 4 intracavity bottoms move to the up stroke top to piston inner chamber height), and overcoat 4 intracavity diameter R are 52mm; Buffer stream metering-orifice 6 is set on the outer wall of its external sleeve bottom, and the diameter of buffer stream metering-orifice 6 is 6-8 mm; Overcoat 4 inner chamber built-up pistons 3 are provided with spring 5 between the cecum of piston 3 and overcoat 4.
Above-mentioned overcoat 4 surface of internal cavity are provided with wear-and corrosion-resistant multicomponent thermochemical treatment metal layer, and the outer circumferential face of piston 3 is provided with nickel alloy wear-and corrosion-proof metal layer equally; Spring 5 adopts stainless steel material.To satisfy the harsh working environment in down-hole, guarantee enough working life.
Working principle: during installation, overcoat 4 is connected the lower end (balance screen casing lower end do not connect original end stifled) of balance screen casing 1 through last internal thread, when plunger runs down to the lower end of the pump housing; Mover 2 bottom apply pistons 3; Because the well liquid that overcoat 4 inner chambers are full of has certain hydraulic pressure, hydraulic pressure discharges through buffer stream metering-orifice 6 bufferings under the pressure of piston 3; Piston 3 just moved to the stroke lower end in about 1.5 seconds, thereby significantly reduced the integral body vibrations that the moment impact of mover 2 bottoms causes; When upwards moving, spring 5 is back to the up stroke top with piston 3 jack-up, and meanwhile, well liquid gets into overcoat 4 inner chambers through buffer stream metering-orifice 6, until being full of, waits for the next descending impact of electric pump mover 2.The size coupling of overcoat 4 inner chamber amount of capacity and buffer stream metering-orifice 6, the time of determined piston 3 downward runtime buffer under the mover effect.
Claims (3)
1. the reciprocal submersible electric pump balancing damping of a numerical control device is characterized in that being provided with overcoat, and the overcoat upper and lower end is provided with internal thread respectively, and the bottom of overcoat inner chamber is a cecum, and the buffer stream metering-orifice is set on the outer wall of its external sleeve bottom; Overcoat inner chamber built-up piston is provided with spring between the cecum of piston and overcoat.
2. the reciprocal submersible electric pump balancing damping of numerical control according to claim 1 device is characterized in that the overcoat surface of internal cavity is provided with the wear-and corrosion-proof metal layer, and the outer circumferential face of piston is provided with the wear-and corrosion-proof metal layer equally, and spring adopts stainless steel material.
3. the reciprocal submersible electric pump balancing damping of numerical control according to claim 1 device is characterized in that the maximum effectively working depth of overcoat inner chamber is 150mm, and the overcoat intracavity diameter is 52mm; The diameter of buffer stream metering-orifice is 6-8 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110317592.6A CN102384076B (en) | 2011-10-19 | 2011-10-19 | Digital-control reciprocating balancing and damping device for electric submergible pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110317592.6A CN102384076B (en) | 2011-10-19 | 2011-10-19 | Digital-control reciprocating balancing and damping device for electric submergible pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102384076A true CN102384076A (en) | 2012-03-21 |
| CN102384076B CN102384076B (en) | 2015-04-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110317592.6A Active CN102384076B (en) | 2011-10-19 | 2011-10-19 | Digital-control reciprocating balancing and damping device for electric submergible pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102384076B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1596129A1 (en) * | 1988-12-08 | 1990-09-30 | В.Ф. Францев и В.Г. Дедю | Deep-well sucker-rod pump |
| RU2052662C1 (en) * | 1991-11-22 | 1996-01-20 | Центральная научно-исследовательская лаборатория Производственного объединения "Оренбургнефть" | Oil-well sucker-rod pump |
| US6193483B1 (en) * | 1998-02-19 | 2001-02-27 | Clarence Michael | Full flow tubing stationary valve pump apparatus |
| CN2512674Y (en) * | 2001-11-25 | 2002-09-25 | 浙江亚太机电股份有限公司 | Operation mechanism |
| CN2623872Y (en) * | 2003-04-17 | 2004-07-07 | 孙平 | Oil well downhole pumping installation |
| DE10342157A1 (en) * | 2003-09-12 | 2005-04-07 | Robert Bosch Gmbh | Reciprocating pump especially for hydraulic brake system in vehicle has shut-off component loaded by valve closing spring which acts upon it by mechanical force component orientated at right angles to flow direction through valve |
| CN1749566A (en) * | 2004-09-17 | 2006-03-22 | 冯春国 | Digital control reciprocating oil submersible electric pump |
| CN201193520Y (en) * | 2008-04-29 | 2009-02-11 | 大庆油田有限责任公司 | Double-measure press-guiding device under well of electric pump |
| US20090068039A1 (en) * | 2004-11-02 | 2009-03-12 | Norbert Alaze | Piston pump |
| CN202280611U (en) * | 2011-10-19 | 2012-06-20 | 沈阳新城石油机械制造有限公司 | Balanced shock-absorbing device of numerical control reciprocating electrical submersible pump |
-
2011
- 2011-10-19 CN CN201110317592.6A patent/CN102384076B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1596129A1 (en) * | 1988-12-08 | 1990-09-30 | В.Ф. Францев и В.Г. Дедю | Deep-well sucker-rod pump |
| RU2052662C1 (en) * | 1991-11-22 | 1996-01-20 | Центральная научно-исследовательская лаборатория Производственного объединения "Оренбургнефть" | Oil-well sucker-rod pump |
| US6193483B1 (en) * | 1998-02-19 | 2001-02-27 | Clarence Michael | Full flow tubing stationary valve pump apparatus |
| CN2512674Y (en) * | 2001-11-25 | 2002-09-25 | 浙江亚太机电股份有限公司 | Operation mechanism |
| CN2623872Y (en) * | 2003-04-17 | 2004-07-07 | 孙平 | Oil well downhole pumping installation |
| DE10342157A1 (en) * | 2003-09-12 | 2005-04-07 | Robert Bosch Gmbh | Reciprocating pump especially for hydraulic brake system in vehicle has shut-off component loaded by valve closing spring which acts upon it by mechanical force component orientated at right angles to flow direction through valve |
| CN1749566A (en) * | 2004-09-17 | 2006-03-22 | 冯春国 | Digital control reciprocating oil submersible electric pump |
| US20090068039A1 (en) * | 2004-11-02 | 2009-03-12 | Norbert Alaze | Piston pump |
| CN201193520Y (en) * | 2008-04-29 | 2009-02-11 | 大庆油田有限责任公司 | Double-measure press-guiding device under well of electric pump |
| CN202280611U (en) * | 2011-10-19 | 2012-06-20 | 沈阳新城石油机械制造有限公司 | Balanced shock-absorbing device of numerical control reciprocating electrical submersible pump |
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| Publication number | Publication date |
|---|---|
| CN102384076B (en) | 2015-04-01 |
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| C06 | Publication | ||
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| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20120321 Assignee: Hunan CRRC Shangqu Electric Co.,Ltd. Assignor: SHENYANG XINCHENG PETROLEUM MACHINERY MANUFACTURING Co.,Ltd. Contract record no.: X2022210000027 Denomination of invention: Balance damping device of numerical control reciprocating electric submersible pump Granted publication date: 20150401 License type: Exclusive License Record date: 20220708 |
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| EE01 | Entry into force of recordation of patent licensing contract |