CN107131131B - A kind of flow equilibrium method of water pump serial-connection system - Google Patents
A kind of flow equilibrium method of water pump serial-connection system Download PDFInfo
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- CN107131131B CN107131131B CN201710426512.8A CN201710426512A CN107131131B CN 107131131 B CN107131131 B CN 107131131B CN 201710426512 A CN201710426512 A CN 201710426512A CN 107131131 B CN107131131 B CN 107131131B
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- flow
- water pump
- speed
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 121
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000001514 detection method Methods 0.000 claims abstract description 23
- 239000007788 liquid Substances 0.000 claims description 21
- 238000006073 displacement reaction Methods 0.000 claims description 8
- 239000000839 emulsion Substances 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 3
- 239000003513 alkali Substances 0.000 claims description 3
- 230000003321 amplification Effects 0.000 claims description 3
- 229910001338 liquidmetal Inorganic materials 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 3
- 239000003921 oil Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 4
- 238000003032 molecular docking Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0066—Control, e.g. regulation, of pumps, pumping installations or systems by changing the speed, e.g. of the driving engine
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/12—Combinations of two or more pumps
- F04D13/14—Combinations of two or more pumps the pumps being all of centrifugal type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04D7/02—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2270/00—Control
- F05D2270/30—Control parameters, e.g. input parameters
- F05D2270/304—Spool rotational speed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2270/00—Control
- F05D2270/30—Control parameters, e.g. input parameters
- F05D2270/306—Mass flow
- F05D2270/3061—Mass flow of the working fluid
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Non-Positive-Displacement Pumps (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention relates to a kind of flow equilibrium methods of water pump serial-connection system.The flow or revolving speed that this method passes through detection pump intakes and water outlet at different levels, execution unit is adjusted the speed according to flow or Rotating speed measring result, water pump power is adjusted the speed accordingly, makes that the flow of pump intake and water outlet at the same level is identical, the flow of inlet and outlet between adjacent water pump is identical.Compared with prior art, the present invention solves water pump serial-connection system existing flow balance issue in practice, and water pump serial-connection system is allowed really to play low investment, efficient effect；Automatic-searching and system can steadily be operated on best efficiency point automatically to the best efficiency point of system in water pump serial-connection system；Reliably replace manpower on duty, the automatic running of maintenance system.
Description
Technical field
The present invention relates to a kind of flow equilibrium methods of water pump, more particularly, to a kind of flow equilibrium of water pump serial-connection system
Method.
Background technique
Water pump serial-connection system is that the water outlet of previous stage water pump is connected to two or two or more water pumps by pipeline
To the water inlet of the same level water pump, or by the water outlet of the same level water pump piping connection to the water inlet of next stage water pump, this
Sample is formed by water pump group and is known as water pump serial-connection system.
In water pump serial-connection system, pump -- pipe docking, pump -- working method of pump docking solves traditional water pump remote conveying
Need to build the structures such as pumping plant and reservoir this high investments, inefficient defect when sending.But it is practical in water pump serial-connection system
In application, the mechanical efficiency due to water pump each in system is different, the straight line of connecting line trend or bending cause tube wall resistance
Difference can form an efficiency low spot in water pump serial-connection system.In order to guarantee complete, the reliability service of system, sometimes must not
Not by whole system work below a more inefficient safety value.If system works in long-distance sand transport state, just
Need manpower on duty to guarantee the operation of system.
Summary of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of water pump serial-connection systems
Flow equilibrium method.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of flow equilibrium method of water pump serial-connection system detects the flow of pump intakes and water outlet at different levels or turns
Speed adjusts the speed execution unit according to flow or Rotating speed measring as a result, being adjusted the speed accordingly to water pump power, makes water feeding of water pump at the same level
Mouthful and water outlet flow is identical, the flow of inlet and outlet between adjacent water pump is identical.
As the first preferred embodiment, flow detection and regulative mode specifically: installed respectively in inlet and outlet
The electric signal of flow sensor, flow sensor is transported to speed regulation execution unit after amplification, operation, carries out to water pump power
Corresponding speed regulation.
As second of preferred embodiment, flow detection and regulative mode specifically: installed respectively in inlet and outlet
Mechanical flow detection device, the displacement and/or deformation that the centrifugal mechanism on flow detector wheel shaft generates, even by machinery
Bar, liquid pipeline or gaseous state pipeline execute corresponding speed regulation to water pump power.
As the third preferred embodiment, flow detection and regulative mode specifically: installed respectively in inlet and outlet
The float displacement and/or shape that the height of liquid level of mechanical flow detection device, flow detector flow cell or flow channel generates
Become, corresponding speed regulation is executed to water pump power by mechanical linkage, liquid pipeline or gaseous state pipeline.
As the 4th kind of preferred embodiment, flow detection and regulative mode specifically: installed respectively in inlet and outlet
Mechanical flow detection device, corresponding physical displacement produced by the flow that flow detector AND DEWATERING FOR ORIFICE STRUCTURE detects and/or
Physical deformation executes corresponding speed regulation to water pump power by mechanical linkage, liquid pipeline or gaseous state pipeline.
As the 5th kind of preferred embodiment, flow detection and regulative mode specifically: dynamic to water pump using speed detector
Power carries out Rotating speed measring, adjusts the speed execution unit according to Rotating speed measring as a result, being adjusted the speed accordingly to water pump power, turns water pump
Speed returns to rotary speed setting value, and the rotary speed setting value is determined by flow rotation speed relation.
The speed detector is photo-electric, magneto-electric, audio-type or mechanical.
The water pump be for convey water, oil, acid & alkali liquid, emulsion, suspended emulsion, liquid metal, gas-liquid mixture and
The mechanical device of the liquid containing suspended solids.
Compared with prior art, the utilization of the method for the present invention can reliably solve water pump serial-connection system in practice
When existing flow balance issue, allow water pump serial-connection system really to play low investment, efficient effect；It can be concatenated in water pump
Automatic-searching and automatically steadily operates in system on best efficiency point to the best efficiency point of system in system；Reliably
Replace manpower on duty, the automatic running of maintenance system；By direct measuring flow or revolving speed, actively adjust revolving speed, reduce due to
The lag bring of changes in flow rate influences, and maintains pump capacities at different levels always and is in harmony in adjusting range certainly.The core of this method
Be to detect, adjust is pump rotary speed and system parameter detection to link using whole system as object to safeguard whole system
Operation, this traditional water pump with when be not and.
Detailed description of the invention
Fig. 1 is the schematic diagram of flow equilibrium method in the pipeline serial-connection system of more water pumps of the present embodiment.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.The present embodiment is with technical solution of the present invention
Premised on implemented, the detailed implementation method and specific operation process are given, but protection scope of the present invention is not limited to
Following embodiments.
Embodiment
When more water pumps concatenate, principle is that every pump capacity of concatenation keeps equal.It illustrates by water pump water delivery: preceding
Grade water pump conveys the water to come, and the same level water pump should equally be transported to next stage water pump in time, if the same level water pump cannot be timely
Ground transfers out previous stage water pump and conveys the water to come, then the pipeline between connection the same level water pump and previous stage water pump is because of pressure
Power constantly increases and is exploded, if the same level water pump conveying capacity is constantly greater than previous stage water pump and conveys the water to come,
Connection the same level water pump and previous stage water pump between pipeline because pressure constantly reduces and generate negative pressure make water pump generate cavitate；Or
Person makes the hose for connecting water pump be inhaled into water pump, thus damages water pump.
The revolving speed for adjusting water pump in actual use, exactly adjusts the flow of pump outlet.Therefore detection water pump
The revolving speed of water pump at different levels in the changes in flow rate of entery and delivery port or detection concatenation water pump system, being in harmony adjustment pump rotary speed certainly is water
The important technology of pump conduit concatenation.
As shown in Figure 1, installing flow inspection at the intake-outlet of water pump in the pipeline serial-connection system of practical more water pumps
Device is surveyed, flow detection can be the flow sensor or mechanical flow detector of electrical signal types, flow is passed
The electric signal of sensor is transported to speed regulation execution unit after amplification, operation and is adjusted the speed accordingly to water pump power, either
It is mounted on the flow detector of vane type on wheel shaft, by the revolving speed height of volume impeller the centrifugal mechanism on wheel shaft is produced
Raw displacement and/or deformation by mechanical linkage, liquid pipeline or gaseous state pipeline or is converted into electric signal to water pump power execution
Corresponding speed regulation.Again either by float position caused by the height of liquid level of flow cell's (slot) of mechanical flow detector
It moves, deformation, corresponding speed regulation is executed to water pump power by mechanical linkage or liquid, gaseous state pipeline.It again either will be mechanical
Corresponding physical displacement, physical deformation produced by the flow that the AND DEWATERING FOR ORIFICE STRUCTURE of the flow detector of formula detects, by machinery
Connecting rod or liquid, gaseous state pipeline execute corresponding speed regulation to water pump power.Such as: distinguish at the intake-outlet of the same level water pump
One flow sensing device is installed, when the flow of inlet water of the same level water pump is greater than water flow, then just will form difference in flow.In time
Ground adjusts the revolving speed of the same level water pump, will offset the difference in flow of the same level water pump intake-outlet.
Speed detector can also be installed at the line shaft of water pump, detection device can be photo-electric, can also be with
It is magneto-electric, is also possible to audio-type, be also possible to mechanical, each water pump in a water pump serial-connection system is pressed
A tachometer value is given according to flow rotation speed relation, speed detector can monitor the revolving speed of water pump in real time.When pump rotary speed deviates
Pump rotary speed is adjusted in time by adjusting the speed execution unit when given value, is returned on given value.
In water pump serial-connection system, compare the mode for using pressure as detection, the present invention uses flow as detection side
Formula is direct with measurand, control response is fast, and controlling dead error is small, the big remarkable advantage of dynamic range.
The present invention adjusts the flow equilibrium of water pump serial-connection system using the detection method of pump rotary speed, has system steady
It is fixed, the small feature of ripple factor.
By the linkage of sensing device and pump rotary speed, the revolving speed of water pump is adjusted to revolving speed required for system in time
On, it is the concept of a system, rather than the concept of single water pump.The core of this technology is: pump rotary speed and system parameter detect
Be in harmony adjustment certainly to optimize the operation of whole system.
Signified water pump refers to for conveying water, oil, acid & alkali liquid, emulsion, suspended emulsion, liquid metal, gas in this technology
Liquid mixture and a kind of mechanical device containing liquid such as suspended solids.
By the utilization of this technology, water pump serial-connection system is allowed to send out in social energy conservation, water-saving, drought resisting water drainage, fire-fighting fire extinguishing
The effect of waving.
Claims (7)
1. a kind of flow equilibrium method of water pump serial-connection system, which is characterized in that detect pump intakes and water outlet at different levels
Flow or revolving speed adjust the speed execution unit according to flow or Rotating speed measring as a result, being adjusted the speed accordingly to water pump power, make peer
The flow of pump intake and water outlet is identical, the flow of inlet and outlet between adjacent water pump is identical, flow detection
And regulative mode specifically: install flow sensor, the telecommunications of flow sensor in pump intakes at different levels and water outlet respectively
It number by amplification, is transported to speed regulation execution unit after operation, water pump power is adjusted the speed accordingly.
2. a kind of flow equilibrium method of water pump serial-connection system according to claim 1, which is characterized in that flow detection and
Regulative mode specifically: install mechanical flow detector in inlet and outlet respectively, flow detector is installation
The detection device of vane type on wheel shaft, the displacement for by the revolving speed height of volume impeller the centrifugal mechanism on wheel shaft being generated
And/or deformation, by mechanical linkage, liquid pipeline or gaseous state pipeline or electric signal is converted into the corresponding tune of water pump power execution
Speed.
3. a kind of flow equilibrium method of water pump serial-connection system according to claim 1, which is characterized in that flow detection and
Regulative mode specifically: install mechanical flow detector in inlet and outlet respectively, flow detector is flow
The flowmeter of room or flow channel structural formula, the float displacement generated according to the height of liquid level of flow cell or flow channel and/or deformation,
By mechanical linkage, liquid pipeline or gaseous state pipeline or electric signal is converted into the corresponding speed regulation of water pump power execution.
4. a kind of flow equilibrium method of water pump serial-connection system according to claim 1, which is characterized in that flow detection and
Regulative mode specifically: install mechanical flow detector in inlet and outlet respectively, flow detector is orifice plate
The flow detector of structural formula, corresponding physical displacement and/or physics shape according to produced by detecting orifice plate under different flow
Become, by mechanical linkage, liquid pipeline or gaseous state pipeline or is converted into electric signal to the corresponding speed regulation of water pump power execution.
5. a kind of flow equilibrium method of water pump serial-connection system according to claim 1, which is characterized in that Rotating speed measring and
Regulative mode specifically: Rotating speed measring is carried out to water pump power using speed detector, speed regulation execution unit is examined according to revolving speed
It surveys as a result, adjusted the speed accordingly to water pump power, so that pump rotary speed is returned to rotary speed setting value, the rotary speed setting value passes through
Flow rotation speed relation determines.
6. a kind of flow equilibrium method of water pump serial-connection system according to claim 5, which is characterized in that the revolving speed
Detection device is photo-electric, magneto-electric, audio-type or mechanical.
7. a kind of flow equilibrium method of water pump serial-connection system according to claim 1, which is characterized in that the water pump
For for conveying water, oil, acid & alkali liquid, emulsion, suspended emulsion, liquid metal, gas-liquid mixture or the liquid containing suspended solids
Mechanical device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710426512.8A CN107131131B (en) | 2017-06-08 | 2017-06-08 | A kind of flow equilibrium method of water pump serial-connection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710426512.8A CN107131131B (en) | 2017-06-08 | 2017-06-08 | A kind of flow equilibrium method of water pump serial-connection system |
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| Publication Number | Publication Date |
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| CN107131131A CN107131131A (en) | 2017-09-05 |
| CN107131131B true CN107131131B (en) | 2019-04-26 |
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| CN201710426512.8A Expired - Fee Related CN107131131B (en) | 2017-06-08 | 2017-06-08 | A kind of flow equilibrium method of water pump serial-connection system |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107893751B (en) * | 2017-11-25 | 2019-06-04 | 蚌埠市鑫源机电设备有限公司 | A kind of pump operation regulation method based on more pump linkages |
| CN107989786B (en) * | 2017-11-25 | 2019-07-05 | 蚌埠市鑫源机电设备有限公司 | A kind of pump operation regulator control system of subregion detection |
| CN107992104B (en) * | 2017-11-25 | 2020-02-11 | 蚌埠市鑫源机电设备有限公司 | Pump operation regulation and control method based on region detection |
| CN107989781B (en) * | 2017-11-25 | 2019-06-04 | 蚌埠市鑫源机电设备有限公司 | A kind of pump operation regulator control system of multistage linking |
| CN117536891B (en) * | 2023-12-25 | 2024-04-09 | 犇流泵业科技(嘉兴)股份有限公司 | Parameter optimization method and system for magnetic suspension type magnetic drive centrifugal pump |
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| CN201865651U (en) * | 2010-11-18 | 2011-06-15 | 陕西天程石化设备有限公司 | Enclosed oilfield water injection device without tank for injecting mixed fresh water and sewage water |
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| CN106354168A (en) * | 2016-10-14 | 2017-01-25 | 江苏大学镇江流体工程装备技术研究院 | Feedback control system of water supply pump station with in-series same pumps |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US6814795B2 (en) * | 2001-11-27 | 2004-11-09 | Ferro Corporation | Hot melt conductor paste composition |
| CN108291897B (en) * | 2015-11-26 | 2021-04-09 | 株式会社岛津制作所 | Liquid feeding device, liquid feeding control method for liquid feeding device, and liquid feeding control program for liquid feeding device |
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- 2017-06-08 CN CN201710426512.8A patent/CN107131131B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201671609U (en) * | 2010-05-18 | 2010-12-15 | 陕西天程石化设备有限公司 | Closed tank-free oilfield water injection system with controllable pressure and flow |
| CN201826823U (en) * | 2010-07-14 | 2011-05-11 | 陕西天程石化设备有限公司 | Skidded pressure flow dual-control moving water injection device |
| CN201865651U (en) * | 2010-11-18 | 2011-06-15 | 陕西天程石化设备有限公司 | Enclosed oilfield water injection device without tank for injecting mixed fresh water and sewage water |
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| CN107131131A (en) | 2017-09-05 |
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