CN101929479A - Method for removing pump pipe differential pressure with high adaptivity - Google Patents
Method for removing pump pipe differential pressure with high adaptivity Download PDFInfo
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- CN101929479A CN101929479A CN2009100723673A CN200910072367A CN101929479A CN 101929479 A CN101929479 A CN 101929479A CN 2009100723673 A CN2009100723673 A CN 2009100723673A CN 200910072367 A CN200910072367 A CN 200910072367A CN 101929479 A CN101929479 A CN 101929479A
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- mounted pump
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- Control Of Positive-Displacement Pumps (AREA)
Abstract
The invention relates to a method for removing the pump pipe differential pressure with high adaptivity, which can increase the regulation range of a main water supply pump output pressure substantially and remove the pump pipe differential pressure. The method in the invention adopts the technical scheme as follows: a forepump is connected with the main water supply pump in series and performs low pressure frequency control of motor speed, and the technical scheme is characterized in that a servo forepump is arranged between the forepump and the main water supply pump which can disengage or resume the serial state according to the pressure demand of a distribution pipeline.
Description
Technical field
The present invention relates to a kind of method of removing pump pipe differential pressure with high adaptivity.
Background technique
With the maximally related technology of the present invention be " a kind of method of eliminating pressure difference of pump tube in water injection system " patent (patent No. 00110026.2), this patent is by front-mounted pump and the series connection of water supply main pump, front-mounted pump is carried out the low-voltage variable frequency speed governing, make the delivery pressure of water supply main pump and the pressure that water distribution pipeline needs mate, eliminate pressure difference of pump tube, energy-saving effect is remarkable.
Raising along with oil field produced degree, the injection allocation scheme of transferring the water distribution water yield significantly often occurs, the many water injection wells that for example are distributed in certain local block stop water filling together in certain period, another recovers water filling then, promptly implement " cyclic waterflooding " injection allocation scheme.Stop water filling period at it, near the water delivery radius of pumping plant will increase, and causes required water supply main pump delivery pressure significantly to improve; And recovering water filling period at it, near the water delivery radius of pumping plant will reduce, and causes required water supply main pump delivery pressure significantly to fall after rise.
For this kind situation, 00110026.2 patented technology is only with a front-mounted pump, be difficult to realize significantly regulation and control to water supply main pump delivery pressure, though also can improve the lift adjustable extent of this series connection system with the mode that increases the front-mounted pump lift, but can increase the capacity of front-mounted pump power and low voltage frequency converter, input is significantly risen, and be unfavorable for steady regulation and control main pump pressure and flow.
Summary of the invention
Goal of the invention of the present invention is to provide a kind of method of removing pump pipe differential pressure with high adaptivity, can realize the modification scope of water supply main pump delivery pressure is enlarged significantly, eliminates pressure difference of pump tube.
Realize technological scheme of the present invention:
A kind of method of removing pump pipe differential pressure with high adaptivity, front-mounted pump is connected with the water supply main pump, and front-mounted pump carries out the low-voltage variable frequency speed governing, it is characterized in that: seal in the servo-actuated front-mounted pump between front-mounted pump and the water supply main pump, according to the pressure needs of water distribution pipeline, the servo-actuated front-mounted pump can break away from or recover this series connection.
When water distribution pipeline pressure is higher, front-mounted pump, servo-actuated front-mounted pump, the operation of water supply main pump serial connection, to the speed governing of front-mounted pump low-voltage variable frequency, servo-actuated front-mounted pump, water supply main pump move with rated speed.
When water distribution pipeline pressure descends, when exceeding the efficient modification scope of front-mounted pump, the servo-actuated front-mounted pump breaks away from series pipe, and by front-mounted pump, the series operation of water supply main pump, to the speed governing of front-mounted pump low-voltage variable frequency, the water supply main pump moves with rated speed.
When water distribution pipeline pressure further descends, when exceeding the efficient modification scope of front-mounted pump, front-mounted pump breaks away from series pipe, by the isolated operation of water supply main pump.
The servo-actuated front-mounted pump can be driven by the water supply main pump motor; The servo-actuated front-mounted pump also can with the shared pump case of water supply main pump.
The beneficial effect that the present invention has:
The present invention seals in the servo-actuated front-mounted pump between front-mounted pump and water supply main pump, according to the pressure needs of water distribution pipeline, the servo-actuated front-mounted pump can break away from or recover this series connection.Need not increase drive motor, only increase a small-power servo-actuated front-mounted pump, just can expand the accommodation that main pump is the water injection pump delivery pressure significantly.Enter in the bigger flood pattern of the pressure oscillation scope of pipe network rate when using this method and can increase substantially water injection pump and do not have operation under the pressure difference of pump tube operating mode at water injection pump.
Description of drawings
Accompanying drawing is for realizing fundamental diagram of the present invention.
Embodiment
As shown in the figure, seal in servo-actuated front-mounted pump 2 between front-mounted pump 1 and the water supply main pump 3, the servo-actuated front-mounted pump is driven by water supply main pump motor 4, the servo-actuated front-mounted pump also can with the shared pump case of water supply main pump.
According to the pressure needs of water distribution pipeline, the servo-actuated front-mounted pump can break away from or recover this serial connection state.
When water distribution pipeline pressure is higher, front-mounted pump, servo-actuated front-mounted pump, the operation of water supply main pump serial connection.Front-mounted pump 1 sucks the water of water supply tank 8, through servo-actuated front-mounted pump 2, exports water distribution pipeline 9 to by water supply main pump 3 at last.Servo-actuated front-mounted pump 2, water supply main pump 3 carry out the low-voltage variable frequency speed governing with the rated speed operation to front-mounted pump 1, realize the adjusting to water supply main pump 3 delivery pressures, thereby mate with the required pressure of water distribution pipeline.
When water distribution pipeline pressure descends, when exceeding the efficient modification scope of front-mounted pump 1, promptly front-mounted pump moves under the state that is lower than 2/3 rated speed for a long time, and clutch 5 disconnects, and servo-actuated front-mounted pump 2 breaks away from seriess pipe, by front-mounted pump 1,3 series operations of water supply main pump.Water supply main pump 3 carries out the low-voltage variable frequency speed governing with the rated speed operation to front-mounted pump 1, realizes the adjusting to water supply main pump 3 delivery pressures, thereby mates with the required pressure of water distribution pipeline.
When water distribution pipeline pressure further descends, when exceeding the efficient modification scope of front-mounted pump 1, disconnect the clutch 7 between front-mounted pump 1 and the front-mounted pump speed-adjustable motor 6, perhaps make front-mounted pump speed-adjustable motor 6 out of service, so that front-mounted pump breaks away from series pipe, by the isolated operation of water supply main pump.
Claims (5)
1. the method for a removing pump pipe differential pressure with high adaptivity, centrifugal front-mounted pump is connected with centrifugal water supply main pump, front-mounted pump carries out the low-voltage variable frequency speed governing, it is characterized in that: seal in centrifugal servo-actuated front-mounted pump between front-mounted pump and the water supply main pump, according to the pressure needs of water distribution pipeline, the servo-actuated front-mounted pump can break away from or recover this series connection.
2. the method for removing pump pipe differential pressure with high adaptivity according to claim 1, it is characterized in that: when water distribution pipeline pressure is higher, front-mounted pump, servo-actuated front-mounted pump, the series operation of water supply main pump, to the speed governing of front-mounted pump low-voltage variable frequency, servo-actuated front-mounted pump, water supply main pump move with rated speed.
3. the method for removing pump pipe differential pressure with high adaptivity according to claim 2, it is characterized in that: when water distribution pipeline pressure descends, when exceeding the efficient modification scope of front-mounted pump, the servo-actuated front-mounted pump breaks away from series pipe, by front-mounted pump, the series operation of water supply main pump, to the speed governing of front-mounted pump low-voltage variable frequency, the water supply main pump moves with rated speed.
4. the method for removing pump pipe differential pressure with high adaptivity according to claim 3 is characterized in that: when water distribution pipeline pressure further descends, when exceeding the efficient modification scope of front-mounted pump, front-mounted pump breaks away from series pipe, by the isolated operation of water supply main pump.
5. according to the method for any one described removing pump pipe differential pressure with high adaptivity of claim 1-4, it is characterized in that: the servo-actuated front-mounted pump can be driven by the water supply main pump motor; The servo-actuated front-mounted pump also can with the shared pump case of main pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100723673A CN101929479A (en) | 2009-06-24 | 2009-06-24 | Method for removing pump pipe differential pressure with high adaptivity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100723673A CN101929479A (en) | 2009-06-24 | 2009-06-24 | Method for removing pump pipe differential pressure with high adaptivity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101929479A true CN101929479A (en) | 2010-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100723673A Pending CN101929479A (en) | 2009-06-24 | 2009-06-24 | Method for removing pump pipe differential pressure with high adaptivity |
Country Status (1)
| Country | Link |
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| CN (1) | CN101929479A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103388587A (en) * | 2012-05-08 | 2013-11-13 | 边文录 | Method for eliminating pressure difference of pump line of water injection system by magnetic coupler |
| CN108869317A (en) * | 2018-06-22 | 2018-11-23 | 湖南天奥星泵业有限公司 | It is a kind of connect fore pump main pump add hydraulic recycling turbine unit and its design method |
| CN109296533A (en) * | 2018-12-05 | 2019-02-01 | 威海天宇新材料科技有限公司 | Water-ring vacuum pump |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5957666A (en) * | 1997-03-22 | 1999-09-28 | Volvo Construction Equipment Korea Co., Ltd. | Tandem-type pump having an auxiliary pump |
| JP2000073990A (en) * | 1998-08-28 | 2000-03-07 | Mitsubishi Heavy Ind Ltd | Rotating machine |
| CN1302941A (en) * | 2000-01-06 | 2001-07-11 | 边文录 | Method for eliminating pressure difference of pump tube in water injection system |
| CN1888448A (en) * | 2005-06-29 | 2007-01-03 | 边威 | Method for keeping shaft seal pressure equal for two serial centrifugal pumps |
| CN201173194Y (en) * | 2008-03-19 | 2008-12-31 | 山东胜利石油石化装备研究中心 | Multiple tandem double-screw pump |
-
2009
- 2009-06-24 CN CN2009100723673A patent/CN101929479A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5957666A (en) * | 1997-03-22 | 1999-09-28 | Volvo Construction Equipment Korea Co., Ltd. | Tandem-type pump having an auxiliary pump |
| JP2000073990A (en) * | 1998-08-28 | 2000-03-07 | Mitsubishi Heavy Ind Ltd | Rotating machine |
| CN1302941A (en) * | 2000-01-06 | 2001-07-11 | 边文录 | Method for eliminating pressure difference of pump tube in water injection system |
| CN1888448A (en) * | 2005-06-29 | 2007-01-03 | 边威 | Method for keeping shaft seal pressure equal for two serial centrifugal pumps |
| CN201173194Y (en) * | 2008-03-19 | 2008-12-31 | 山东胜利石油石化装备研究中心 | Multiple tandem double-screw pump |
Non-Patent Citations (2)
| Title |
|---|
| 刘光临等: "多泵并串联泵系统运行特性的研究", 《流体机械》 * |
| 包怡斐等: "水泵串联技术应用的探讨", 《排灌机械》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103388587A (en) * | 2012-05-08 | 2013-11-13 | 边文录 | Method for eliminating pressure difference of pump line of water injection system by magnetic coupler |
| CN108869317A (en) * | 2018-06-22 | 2018-11-23 | 湖南天奥星泵业有限公司 | It is a kind of connect fore pump main pump add hydraulic recycling turbine unit and its design method |
| CN109296533A (en) * | 2018-12-05 | 2019-02-01 | 威海天宇新材料科技有限公司 | Water-ring vacuum pump |
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Application publication date: 20101229 |