CN106958529A - A kind of method that pump performance curve is drawn from energy-saving run angle - Google Patents
A kind of method that pump performance curve is drawn from energy-saving run angle Download PDFInfo
- Publication number
- CN106958529A CN106958529A CN201610013092.6A CN201610013092A CN106958529A CN 106958529 A CN106958529 A CN 106958529A CN 201610013092 A CN201610013092 A CN 201610013092A CN 106958529 A CN106958529 A CN 106958529A
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- China
- Prior art keywords
- pump
- lift
- curve
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Classifications
-
- 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
-
- 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
- F05D2260/00—Function
- F05D2260/82—Forecasts
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Positive-Displacement Pumps (AREA)
- Control Of Non-Positive-Displacement Pumps (AREA)
Abstract
A kind of method that pump performance curve is drawn from energy-saving run angle, the pump performance curve that this method is drawn is to represent lift H on axis of abscissas, flow Q, shaft power P and efficiency eta are represented on axis of ordinates respectively, lift-flow curve, lift-shaft power curve and lift-efficiency curve is drawn out.Such curve is drawn during pump delivery test, it is easy to be quickly found out corresponding lift H values under the corresponding lift H scopes in pump Effec-tive Function region and peak efficiency, because the characteristic curve of pump is inherent characteristic, so in pump site installation test, the lift H values of pump only need to be measured, and by adjusting the choke valve in pipeline, lift is maintained near most efficient H values, ensure that pump is run in most high efficient district, reach the purpose for saving the energy.
Description
Technical field
The present patent application is a kind of method that pump performance curve is drawn from energy-saving run angle, and this method can dispatch from the factory according to water pump
13 data points examined, go out to represent to represent respectively on lift H, axis of ordinates on axis of abscissas by least square fitting
Flow Q, shaft power P and efficiency eta characteristic curve of pump.Pump Effec-tive Function can be quickly found out by the characteristic curve of pump
The corresponding lift H scopes in region, during pump site installation test, by measuring the lift of pump, just can ensure pump in efficient region
Operation.So as to solve the problems, such as the very big energy waste that water pump is caused in non-efficient area operation.
Background technology
At present, pump class product consumes in the world 20% electric energy, about 50% is wasted among these, and wasting main
Reason is that pump is long-term in non-efficient area operation.The pump performance curve that existing pump testing method GB/T3216-2005 is drawn be with
Represent to represent lift H, shaft power P and efficiency eta on flow Q, axis of ordinates respectively on axis of abscissas, draw Q-H, Q-P
With Q- η curves, the corresponding flow value of peak efficiency can be found out by the curve；Pump Effec-tive Function region can not be quickly found out
Corresponding lift H scopes, during pump site installation test, because measurement flow is relatively difficult, it is impossible to easily to its operating point
Whether confirmed in efficient region operation.If to represent to represent flow Q on lift H, axis of ordinates respectively on axis of abscissas,
Shaft power P and efficiency eta draw H-Q, H-P and H- η characteristic curve of pump.Pump can be quickly found out by the curve efficient
The corresponding lift H scopes in operation area, during pump site installation test, easily can measure pump by measuring inlet and outlet pressure
Lift, by adjusting throttle, just can ensure that pump is run in efficient region.Transported so as to solve water pump in non-efficient region
The very big energy waste problem gone and caused.
The content of the invention
It is a kind of from energy-saving run angle draw pump performance curve, it with is represented on axis of abscissas on lift H, axis of ordinates distinguish
Represent flow Q, shaft power P and efficiency eta.H-Q, H-P and H- η curves are drawn during pump delivery test, are easy to quickly look for
To the corresponding lift H scopes in pump Effec-tive Function region and the corresponding lift H values of peak efficiency, during pump site installation test, only need
The lift of pump is measured, lift H values are transferred to by choke valve by high efficient district, just can ensure pump Effec-tive Function in systems, reach section
The about purpose of the energy.
Brief description of the drawings
Fig. 1 is pump performance data；Fig. 2 is a kind of pump performance curve drawn from energy-saving run angle.
Embodiment
The technical solution adopted for the present invention to solve the technical problems is：Propose a kind of from energy-saving run angle drafting pump performance curve
Method, this method draw pump performance curve to represent to represent flow Q on lift H, axis of ordinates respectively on axis of abscissas,
Shaft power P and efficiency eta.Such curve is drawn during pump delivery test, is easy to be quickly found out the corresponding lift in pump Effec-tive Function region
H scopes, during pump site installation test, only need to measure the lift of pump, just can be carried out to whether its operating point runs in efficient region
Confirm, if lift value is adjusted to high efficient district not in high efficient district by adjusting throttle.Specific implementation process is as follows：
1. pumping out before factory, pump condition point is sampled, general 13 points of collection；Gone out by least square fitting with axis of abscissas
Flow Q, shaft power P and efficiency eta characteristic curve of pump are represented on upper expression lift H, axis of ordinates respectively.
2. the scope of pair pump performance curve efficient region provides definition, the corresponding pump lift H scopes in Effec-tive Function region are found out.
3. during pump site installation test, installing pump lift measuring instrumentss, it is efficient to pump to adjust pump lift by methods such as throttling or speed governing
The corresponding pump lift scope in operation area, it is ensured that pump is run in efficient region.
The beneficial effects of the invention are as follows drawn before factory to represent to distinguish table on lift H, axis of ordinates on axis of abscissas using being pumped out
Show flow Q, shaft power P and efficiency eta H-Q, H-P and H- η characteristic curve of pump.Pump Effec-tive Function can be quickly found out
The corresponding lift H scopes in region, during pump site installation test, by measuring the inlet and outlet pressure of pump, conveniently and efficiently ensure pump
Energy-efficient operation.
Claims (3)
1. a kind of method that pump performance curve is drawn from energy-saving run angle, the pump performance curve that this method is drawn is with axis of abscissas
Represent to represent flow Q, shaft power P and efficiency eta respectively on lift H, axis of ordinates, draw out lift-flow curve, lift
- shaft power curve and lift-efficiency curve.Such curve is drawn during pump delivery test, is easy to be quickly found out pump Effec-tive Function region
Corresponding lift H values under corresponding lift H scopes and peak efficiency, because the characteristic curve of pump is inherent characteristic, in pump
During site installation test, the lift H values of pump only need to be measured, and by adjusting the choke valve in pipeline, lift is maintained at highest
Imitate near H values, so that it may ensure that pump is run in most high efficient district, reach the purpose for saving the energy.
2. the pump performance curve drawn according to claim 1, it is characterized in that：To represent lift H, ordinate on axis of abscissas
Flow Q, shaft power P and efficiency eta are represented on axle respectively, draw out lift-flow curve, lift-shaft power curve and lift-
Efficiency curve.
3. the pump performance curve drawn according to claim 1, it is characterized in that：It is easy to be quickly found out pump Effec-tive Function region correspondence
Lift H scopes and peak efficiency under corresponding lift H values because the characteristic curve of pump be inherent characteristic, pump scene
During installation and debugging, the lift H values of pump only need to be measured, and by adjusting the choke valve in pipeline, lift is maintained at most efficient H
Near value, so that it may ensure that pump is run in most high efficient district, reach the purpose for saving the energy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610013092.6A CN106958529A (en) | 2016-01-11 | 2016-01-11 | A kind of method that pump performance curve is drawn from energy-saving run angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610013092.6A CN106958529A (en) | 2016-01-11 | 2016-01-11 | A kind of method that pump performance curve is drawn from energy-saving run angle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106958529A true CN106958529A (en) | 2017-07-18 |
Family
ID=59480758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610013092.6A Pending CN106958529A (en) | 2016-01-11 | 2016-01-11 | A kind of method that pump performance curve is drawn from energy-saving run angle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106958529A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111287950A (en) * | 2020-02-21 | 2020-06-16 | 烟台盛泉泵业有限公司 | Control method for energy-saving operation of water pump |
| CN114357664A (en) * | 2022-03-15 | 2022-04-15 | 河北建投水务投资有限公司 | Modeling method and system for mathematical model of variable-frequency speed-regulating water pump |
-
2016
- 2016-01-11 CN CN201610013092.6A patent/CN106958529A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111287950A (en) * | 2020-02-21 | 2020-06-16 | 烟台盛泉泵业有限公司 | Control method for energy-saving operation of water pump |
| CN114357664A (en) * | 2022-03-15 | 2022-04-15 | 河北建投水务投资有限公司 | Modeling method and system for mathematical model of variable-frequency speed-regulating water pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170718 |
|
| WD01 | Invention patent application deemed withdrawn after publication |