CN1303467A - Diagnosing system for fluid machinery - Google Patents
Diagnosing system for fluid machinery Download PDFInfo
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- CN1303467A CN1303467A CN 99806592 CN99806592A CN1303467A CN 1303467 A CN1303467 A CN 1303467A CN 99806592 CN99806592 CN 99806592 CN 99806592 A CN99806592 A CN 99806592A CN 1303467 A CN1303467 A CN 1303467A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B51/00—Testing machines, pumps, or pumping installations
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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
- F04D15/0088—Testing machines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B2203/00—Motor parameters
- F04B2203/02—Motor parameters of rotating electric motors
- F04B2203/0209—Rotational speed
Abstract
A diagnosing system for fluid machinery capable of finding wasteful energy consumed around the fluid machinery, comprising a first identifying means for identifying the characteristics of the fluid machinery represented by a flow rate-lift characteristic by receiving specified information on the fluid machinery to be diagnosed; a second identifying means for identifying the operating flow rate or operating pressure of the fluid machinery according to the relationship between the identified characteristics and a measured operating pressure or operating flow rate of the fluid machinery by operating the fluid machinery to be diagnosed and receiving the measured results of the operating pressure (lift), operating flow rate, power consumption, or operating electric current of the fluid machinery in operation, and a processing means for computing variations in an operating flow rate; operating pressure, or power consumption when the revolution speed of the fluid machinery to be diagnosed is changed and displaying the computed results.
Description
Technical field
The present invention relates to the diagnostic system of fluid machinery, specifically, relate to the system that is controlled at the outside useless energy that consumes of fluid machinery, particularly in using the equipment of hot and cold water recycle pump etc., the system that control and checking inferior limit consume electric power.
Background technique
It is known using the technology of transducer (frequency converter) control motor-mount pump revolution.This method not only is used for the device of the such fierce load change of water supply installation, also is very effective power-economizing method for recycle pump etc.
General pump is not to meet the manufacturing of required order sample plot.That is, not to meet necessary project to make (flow, lift), use but from product, select to satisfy required purpose pump.In addition, usually, planning item is to calculate peak rate of flow with allowing some leeway in flow, and, the variation after in the pipe arrangement loss, also considering enough and to spare and using throughout the year.Therefore, in the real-world operation, carry out valve regulation, along with this valve regulation produces a lot of wastes in order to suppress excessive flow.That is,, also can produce waste even select pump by calculating formula.
As energy-conservation a kind of method, be to make the running of pump consistent with the project of " very " (essential minimal flow, the lift known at the beginning during on-the-spot running), waste minimum, effective running.
For example, from the scene running, when the capacity of pump is too more than needed, can save energy with following method.
1. pump is changed into the little pump of a little level capacity.
2. process the external diameter of impeller, pump performance is reduced to appropriate value.
But these methods cause other waste, and the performance of (returning original) when being difficult to improve the generation problem.And transducer can be easily and reversibly regulates pump performance, so, can realize energy-saving operation.
In addition, append transducer to scheme following method being arranged when energy-conservation in existing pumping unit, these methods respectively have pluses and minuses.
1. control the method for original motor-mount pump with transducer.
(advantage) motor-mount pump itself does not need change.
Often be the many places of moisture around (shortcoming) pump, be not suitable for being provided with general transducer.Therefore, transducer is preferably interior ensconces in the control panel.Like this, except transducer, also to transform or newly make control panel.
2. original motor-mount pump is changed into method for the pump of having adorned transducer.
(advantage) needn't transform control panel etc.
(shortcoming) will change pump fully.Therefore, when changing the original pump do not reach service life, unfavorable at economic aspect.
3. only the motor of original motor-mount pump is replaced by the motor of having adorned transducer.
(advantage) is as long as change motor.But, except coupling joins straight junction type pump, pump partly must be separated assembling again.Basically do not need transformation of carrying out control panel etc.
(shortcoming) changed when not reaching the motor of service life, and be unfavorable at economic aspect.
Therefore, select effective method according to the condition at scene.
Other problem is, by the also not generalization of energy calculation method of transducer saving.In other words, under the situation of not using transducer, the method for the necessary project of control " very " and the difference of control and checking and real-world operation point does not also have.Therefore, even know that transducer can be energy-conservation, can not control concrete degree of power conservation.As a result, for example can not calculate the investment results when being replaced by the pump of having adorned transducer, this energy-saving effect can not come into the market.
On behalf of flow (discharge capacity), the longitudinal axis, the flow-pressure characteristic of turbulence pump (Q-H characteristic) represent a curve representation of total head (pressure) by transverse axis as shown in figure 42.As required, also putting down in writing pump shaft power (output), pump efficiency, pump suction performance (requiring the NPSH of (Required)) and current value (situation of motor-mount pump) etc.
As mentioned above, in recent years, use the machine that as one of representative the fluid machinery rotation number is changed with transducer (frequency converter), the technology of control motor-mount pump revolution is known.This method not only is used for load the like that device of fierce change of water supply installation, also is very effective power-economizing method for recycle pump etc.
As mentioned above, general service pump does not meet necessary project benchmark ground to be made, promptly, not to meet necessary project to make pump (flow, lift), but the pump of (bigger) uses more than product pump select planning important item, and method for saving energy is that the operation point of pump and the project of " very " (are turned round from the scene, the flow of the required irreducible minimum of knowing at first, lift) unanimity, there be not " the effectively running " of waste.Therefore, slow down, can obtain great energy-saving effect by make pump with transducer.
In addition, also proposed such pump in the prior art: mounting converter in advance, by adjusting knob, stage ground control is added in the frequency number on the pump.The Q-H characteristic of this pump is used some curve representations shown in Figure 43 A and Figure 43 B.These curves show for each adjusting knob numbering, the flow (discharge capacity) during change frequency number (rotation number) and the relation of total head (pressure).Figure 43 A is a partial enlarged drawing, and Figure 43 B is all figure.
But, as shown in figure 42 in the prior art of display characteristic, even use transducer in the hope of energy-conservation, in its characteristic showed, the discharge capacity when rotation number is changed and the relation of total head do not know fully, simultaneously, with the information that consumes electrical also not record, therefore, for the investment results of control transformation device, must carry out the simulation of trouble at every turn.
On the other hand, shown in Figure 43 A and Figure 43 B in the prior art of display characteristic, though put down in writing the output of each rotation number (each adjusting knob numbering), but not record and the information that consumes electrical, therefore, when rotation number is changed, in order to control energy-conservation degree, must obtain the data of moyor and converter efficiency etc. with method for distinguishing, simulate.
That is, in the prior art, when using transducer to implement the power-economizing method of pump, the calculating of investment results is cumbersome, and is also time-consuming, in addition, in the real armored pump of transducer, can't use its energy-saving effect of numeral at present.
Disclosure of an invention
The present invention makes in view of the above problems, and its 1st purpose provides a kind of diagnostic system.This diagnostic system before implement rotation number and regulate, can calculate the energy of saving because of the rotation number of having used transducer (frequency converter) etc.That is, the 1st purpose of the present invention provides the diagnostic system of fluid machinery, and this diagnostic system can be controlled the outside useless energy that consumes of fluid machinery.
The 2nd purpose of the present invention provides the energy-conservation prior diagnostic system of fluid machinery.This diagnostic system can calculate the energy of saving because of the rotation number of having used transducer (frequency converter) etc. easily.
The 3rd purpose of the present invention provides the characteristic display method of fluid machinery and shows thing.Specifically, be in the fluid machinery characteristic of pump etc. is represented, when record changes rotation number with the information that consumes electrical, the investment results when simply control example is as importing (setting up) transducer, this energy-saving effect comes into the market.
In order to realize above-mentioned the 1st purpose, adopt (1)～(4) embodiment of fluid machinery diagnostic system of the present invention.
(1) diagnostic system of fluid machinery is characterized in that, has the 1st specialization means, the 2nd specialization means and processing means;
The 1st specialization means, by input by the predetermined information of diagnosis fluid machinery, the specialization of characteristic that with flow one lift characteristic is the fluid machinery of representative;
The 2nd specialization means, make by the running of diagnosis fluid machinery, the running pressure (lift) of the fluid machinery during by the input running or the measurement result of running flow or consumption electric power or revolution electric current value, by above-mentioned by specialization the characteristic of fluid machinery and the running pressure of the fluid machinery of mensuration or the relevance between the running flow, with the running flow or the running pressure specialization of fluid machinery;
The processing means are calculated running flow when making by the rotation number variation of diagnosis fluid machinery or the variation of turning round pressure or consuming electric power, and are shown this result of calculation.
(2) writing down the computer-readable recording medium of program, this program can make the computer realization following function:
By input by the predetermined information of diagnosis fluid machinery, the function of specialization of characteristic that with flow one lift is the fluid machinery of representative;
Make by the running of diagnosis fluid machinery, the running pressure (lift) of the fluid machinery during by the input running or the measurement result of running flow or consumption electric power or revolution electric current value, by the running pressure of the fluid machinery of the characteristic of the fluid machinery behind the above-mentioned specialization and mensuration or the relevance between the running flow, with the function of the running flow or the running pressure specialization of fluid machinery;
Running flow when calculating makes and changed by the rotation number of diagnosis fluid machinery or running pressure or the variation that consumes electric power, and show the function of this result of calculation.
(3) diagnostic system of fluid machinery is characterized in that, has the 1st specialization means, the 2nd specialization means and processing means;
The 1st specialization means, what will be diagnosed fluid machinery is the specialization of the characteristic of representative with flow-lift;
The 2nd specialization means will be by the real-world operation point specialization of diagnosis fluid machinery;
The processing means are calculated the variation of the operation point when making by the rotation number variation of diagnosis fluid machinery, and show result of calculation.(4) diagnostic method of fluid machinery is characterized in that, is made of following 4 stages: by the stage of the real-world operation point specialization of diagnosis hydraulic mechanism;
Being stage of specialization of the characteristic of representative with flow-lift by the diagnosis fluid machinery;
The stage of the variation of the operation point when calculating makes by the rotation number variation of diagnosis fluid machinery;
The stage that shows result of calculation.
According to the inventive embodiment of above-mentioned (1) to (4) record, when the rotation number of employing transducer (frequency converter) etc. is regulated, can before implementing the rotation number adjusting, calculate the amount of energy saving that brings by this rotation number adjusting.
Each mechanism of the present invention or stage, carry out by the computers such as computer of tape program.In the embodiment of above-mentioned (4) record, also comprise a part and the stage carry out without computer, and (handwork etc.) situation of carrying out otherwise.
In addition, in order to realize above-mentioned the 1st purpose, another embodiment of the present invention is the ad hoc approach of fluid machinery characteristic, it is characterized in that, has following 2 stages;
The 1st stage was, specified output and specified rotation number based on the motor of the bore of fluid machinery and impeller progression, driving fluid machinery, the representative point that decision comprises the fluid machinery of represent lift inverse iteration table axle power is with respect to represent a lift beyond the flow and a power to represent lift and representing the ratio of a power, lift when calculating each flow and axle power, the virtual characteristics of setting fluid machinery;
The 2nd stage was that the lift when turning round to comprise present situation at least and the determination data of consumption electric power are revised above-mentioned virtual characteristics, the characteristic of particular fluid machinery and the operation point that comprises the flow that turns round.
In order to realize above-mentioned the 2nd purpose, one embodiment of the invention are energy-conservation prior diagnostic systems of fluid machinery, it is characterized in that, have input mechanism, input or setting device, calculating means and processing means;
Flow rate pressure (lift) and the flow-data of consumption electric power and the planning item of equipment side (flow rate pressure) of the band motor fluid machinery when the input mechanism input is exchanged the source power supply driving;
Input or setting device, the pipe impedance (actual lift) when input or setting flow are zero;
The reduction effect of the consumption electric power when the calculating means are calculated with frequency converter reduction fluid machinery rotation number;
The processing means show result of calculation.
In addition, another embodiment of the present invention is to write down the computer-readable recording medium of program, and said procedure can make following two functions of computer realization:
Flow rate pressure (lift) and the flow-data of consumption electric power and the planning item of equipment side (flow rate pressure) of the band motor fluid machinery when input is exchanged the source power supply driving; And the pipe impedance (actual lift) when input or setting flow are zero, the consumption electric power when calculating with frequency converter reduction fluid machinery rotation number is cut down the function of effect;
The function that shows result of calculation.
In order to realize above-mentioned the 3rd purpose, the embodiment of the present invention adopts following (1) to (5).
(1) the characteristic display method of fluid machinery is characterized in that, the flow-pressure characteristic because of the different fluid machinery of rotation number is used some curve representations on one side, simultaneously, extremely goes up expression and consumes the relevant information of electric power for above-mentioned.
According to the present invention, with because of the flow-pressure characteristic of the different and different fluid machinery of rotation number accordingly, a glance can be seen the information relevant with consuming electric power simultaneously, for example, the investment results in the time of can controlling importing (setting up) transducer simply.
(2) be the characteristic display method that adopts the fluid machinery of (1) record, the demonstration thing that shows the fluid machinery characteristic.This demonstration thing can be to be the sales data of representative with the product sample.
(3) be the machine that fluid machinery or the rotation number that makes fluid machinery change, it is characterized in that, on the same one side for the sales data of representative such as product sample, with the flow-pressure characteristic of some curves demonstrations because of the different fluid machinery of rotation number, simultaneously, on the face of above-mentioned sales data, show simultaneously and the relevant information of consumption electric power.
Like this, to import fluid machinery or with the transducer be representative, when making the machine that the fluid machinery rotation number changes,, just can know investment results simply as long as see these sales datas.
(4) be that the consumption electric power of fluid machinery reads line chart, it is characterized in that, some curves of the flow-pressure characteristic of the fluid machinery when some curves of the flow-pressure characteristic of the fluid machinery during each rotation number of demonstration and demonstration respectively consume electric power are recorded on the same system of coordinates.
(5) be the embodied on computer readable record carrier that utilizes the system of COMPUTER CALCULATION, mapping and writing down program, it is characterized in that, the flow-pressure characteristic of the band motor fluid machinery when input is exchanged the source power supply driving and the data of flow-consumption electric power obtain the demonstration thing of claim 28 record or the line chart of claim 30 record; Above-mentioned being characterised in that, this program make the computer realization aforementioned calculation, make drawing system.
The simple declaration of accompanying drawing:
Fig. 1 is the block diagram of the hardware construction of expression fluid machinery diagnostic system of the present invention.
Fig. 2 is the figure of the diagnostic sequence of explanation fluid machinery diagnostic system of the present invention, is the characteristic figure of expression fluid machinery.
Fig. 3 A and Fig. 3 B are the figure of the diagnostic sequence of explanation fluid machinery diagnostic system of the present invention, are the characteristic figure of expression fluid machinery.
Fig. 4 A and Fig. 4 B are the figure of the diagnostic sequence of explanation fluid machinery diagnostic system of the present invention, are the characteristic figure of expression fluid machinery.
Fig. 5 A and Fig. 5 B are the figure of the diagnostic sequence of explanation fluid machinery diagnostic system of the present invention, are the characteristic figure of expression fluid machinery.
Fig. 6 is the figure of the diagnostic sequence of explanation fluid machinery diagnostic system of the present invention, is the characteristic figure of expression fluid machinery.
Fig. 7 is the figure of the diagnostic sequence of explanation fluid machinery diagnostic system of the present invention, is the characteristic figure of expression fluid machinery.
Fig. 8 is the figure of the diagnostic sequence of explanation fluid machinery diagnostic system of the present invention, is the characteristic figure of expression fluid machinery.
Fig. 9 is the figure of the diagnostic sequence of explanation fluid machinery diagnostic system of the present invention, is the characteristic figure of expression fluid machinery.
Figure 10 is the figure of the diagnostic sequence of explanation fluid machinery diagnostic system of the present invention, is the characteristic figure of expression fluid machinery.
Figure 11 is the figure of the diagnostic sequence of explanation fluid machinery diagnostic system of the present invention, is the characteristic figure of expression fluid machinery.
Figure 12 is the figure of the diagnostic sequence of explanation fluid machinery diagnostic system of the present invention, is the characteristic figure of expression fluid machinery.
Figure 13 is the summary process chart of presentation graphs 1 to the handling process of fluid machinery diagnostic system shown in Figure 12.
Figure 14 is the profile of expression the 1st form when using the property regulation device of fluid machinery, installation.
Figure 15 is the profile of expression the 2nd form when using the property regulation device of fluid machinery, installation.
Figure 16 A and Figure 16 B are the figure that represents property regulation device shown in Figure 14 in detail, and Figure 16 A is the biopsy cavity marker devices front elevation, and Figure 16 B is a profile.
Figure 17 is X VII-X VII line sectional view of Figure 16 A.
Figure 18 A and Figure 18 B are the figure that represents property regulation device shown in Figure 15 in detail, and Figure 18 A is the biopsy cavity marker devices front elevation, and Figure 18 B is a planimetric map.
Figure 19 is X IX-X IX line sectional view of Figure 18 A.
Figure 20 A and Figure 20 B are the profiles of expression the 3rd form when using the property regulation device of fluid machinery, installation, and Figure 20 A is a profile, and Figure 20 B is that the XX of Figure 20 A is to view.
Figure 21 A and Figure 21 B are Figure 14 another examples to property regulation device body shown in Figure 20, and Figure 21 A is a front elevation, and Figure 21 B is a profile.
Figure 22 is the figure of the diagnostic sequence of explanation fluid machinery diagnostic system of the present invention, is the characteristic figure of expression fluid machinery.
Figure 23 is that the skeleton diagram as the on-the-spot equipment of the fluid machinery running of diagnosis object is brought in expression into.
Figure 24 is the dimensionless performance of pump, represents pump characteristics (flow-lift, flow-rotatory force) with respect to specific rate with zero dimension.
Figure 25 is the figure of expression specific rate-pump efficiency characteristic.
Figure 26 A to Figure 26 D is lift and consumption electric power and the flow of with the setting value of fluid machinery efficient and motor efficiency calculating of expression when turn round with present situation, the figure in the correction stage of the specific and virtual characteristics of setting stage when going to revise virtual characteristics, the pump virtual characteristics, pump operation point (flow).
Figure 27 A to Figure 27 D is lift and consumption electric power and the flow of with the setting value of fluid machinery efficient and motor efficiency calculating of expression when turn round with present situation, lift during with the cutout running and consumption electric power, the figure in the correction stage of the specific and virtual characteristics of stage of establishing when going to revise virtual characteristics, the pump virtual characteristics and pump operation point (flow).
Figure 28 A to Figure 28 D be expression when turn round with present situation lift and consume electric power and the flow of calculating with the setting value of fluid machinery efficient and motor efficiency and valve standard-sized sheet lift and the consumption electric power when turning round, the figure in the correction stage of the specific and virtual characteristics of setting stage when going to revise virtual characteristics, the pump virtual characteristics and pump operation point (flow).
Figure 29 A to Figure 29 D be expression when turn round with present situation lift and consume electric power and the flow of calculating with the setting value of fluid machinery efficient and motor efficiency and cutout when turning round and lift and consumption electric power during the valve standard-sized sheet, the figure in the correction stage of the specific and virtual characteristics of setting stage when going to revise virtual characteristics, the pump virtual characteristics and pump operation point (flow).
Figure 30 A to Figure 30 D is the lift when representing from virtual characteristics and present situation running, specific operation point (flow), the figure in the correction stage of the specific and virtual characteristics of setting stage when going to revise above-mentioned virtual characteristics, the pump virtual characteristics and pump operation point (flow) with present situation consumption electric power.
Figure 31 A to Figure 31 D is the lift when representing from virtual characteristics and present situation running, specific operation point (flow), lift when consuming electric power and valve standard-sized sheet and consume electric power with present situation, the figure in the correction stage of the specific and virtual characteristics of setting stage when going to revise above-mentioned virtual characteristics, the pump virtual characteristics and pump operation point (flow).
Figure 32 is the figure of diagnostic sequence of the energy-conservation prior diagnostic system of expression fluid machinery of the present invention, is the characteristic figure of expression fluid machinery.
Figure 33 is the figure of diagnostic sequence of the energy-conservation prior diagnostic system of expression fluid machinery of the present invention, is the characteristic figure of expression fluid machinery.
Figure 34 is the figure of the example of result's output of being diagnosed out by the energy-conservation prior diagnostic system of fluid machinery of the present invention.
Figure 35 is the figure of the A part among expression Figure 34.
Figure 36 is the skeleton diagram that expression utilizes one of the energy-conservation prior diagnostic system of the fluid machinery example of computer.
Figure 37 is the figure of the fluid machinery characteristic of expression fluid machinery characteristic display method of the present invention and the 1st example that shows thing.
Figure 38 is the figure of the easy investment results calculated example of explanation transducer importing.
Figure 39 is the figure of the fluid machinery characteristic of expression fluid machinery characteristic display method of the present invention and the 2nd example that shows thing.
Figure 40 is the figure of the fluid machinery characteristic of expression fluid machinery characteristic display method of the present invention and the 3rd example that shows thing.
Figure 41 is the summary process chart that the handling process in the drawing system was calculated, done in expression.
Figure 42 is the figure that pump characteristics is represented example in the expression prior art.
Figure 43 A and Figure 43 B are the figure that another routine pump characteristics is represented example in the expression prior art.
The optimal morphology that carries out an invention
Below, with reference to an embodiment of description of drawings fluid machinery diagnostic system of the present invention.
The diagnostic system of fluid machinery is made of the 1st specialization means, the 2nd specialization means and processing means.The 1st specialization means are by the predetermined information of input quilt diagnosis fluid machinery, the characteristic specialization that with flow-lift characteristic is the fluid machinery of representative.The 2nd specialization means, when making by the running of diagnosis fluid machinery, the running pressure (lift) of the fluid machinery during by the input running or the measurement result of running flow or consumption electric power or revolution electric current value, by above-mentioned by specialization the characteristic of fluid machinery and the running pressure of the fluid machinery of mensuration or the relevance between the running flow, with the running flow or the running pressure specialization of fluid machinery.The processing means are calculated running flow when making by the rotation number variation of diagnosis fluid machinery or the variation of turning round pressure or consuming electric power, and show this result of calculation.
Fig. 1 is the hardware construction figure of present embodiment fluid machinery diagnostic system.In the present embodiment, fluid machinery is to be example explanation fluid machinery with the pump.
The diagnostic system of fluid machinery has all master control part 1 and the main storage means 2 that is connected with master control part 1 of blanket ground control system.Master control part 1 is made of control gear 3 and computing device 4.Master control part 1 is connecting input device 5 and output unit 6.Input device 5 is made of keyboard and mouse etc.Output unit 6 is made of printer and display device etc.Among Fig. 1, thick arrow is represented the trend of data and program, and thin arrow is represented the trend of control signal.
If these data are the accurate data of each pump not necessarily.That is, can be by input bore or output value, with the pump characteristics average data of specialization to a certain degree, or the data of medelling in advance.
According to the present invention, by the 1st specialization means of the master control part 1 of packing into, can be with motor pump characteristics specialization as diagnosis object.Specifically, for example with reference to value of pump label etc.,
The bore of pump
The specified output of motor (being called the nominal output of pump again)
The number of poles of motor
The operating frequency of motor
The impeller progression of pump
Input input device 5.The 1st specialization means are according to these data, with the flow-lift characteristic and the flow-consumption electricity characteristic specialization of pump.This specialization for example is the data in being stored in main storage means 2, selects approaching data to carry out.In addition, be input to the information (data) of input device 5, except above-mentioned, also comprising the machine name of pump label important item, pump, the impeller progression of pump, the impeller outer diameter size of pump, the test data of pump etc.
Specialization is for example represented with a solid line and dotted line and oblique line as illustrated in fig. 2.Fig. 2 is the flow-lift characteristic of expression pump and the figure of flow-consumption electricity characteristic.Transverse axis is represented flow (Q), and the longitudinal axis is represented lift (H) or consumed electric power (W).As shown in Figure 2, based on input results, by the 1st specialization means, the flow-lift characteristic of pump and flow-consumption electricity characteristic with predetermined width by specific.That is, the zone of a of oblique line portion is by specific.Dotted line is represented the upper and lower in oblique line portion a zone, and solid line is the center line in oblique line portion a zone.By the specific result of the 1st specialization means, on the output unit 6 that constitutes by LCD display devices such as (liquid crystal), show.The data precision that a of oblique line portion is transfused to is revised well, and its scope narrows down.That is, for example, if known the machine name of manufacturing firm and pump, because can be accurately with the characteristic specialization, so to such shown in Fig. 3 B, the area of a of oblique line portion can become minimum from Fig. 3 A condition.
Result with the 1st specialization means after specific, the consumption electric power of the fluid machinery by input real-world operation point again, precision is corrected.That is, the motor when measuring real-world operation consumes electric power, is input to input device 5, and precision is corrected, and to such shown in Fig. 4 B, a of oblique line portion comprises actual motor and consumes power value from Fig. 4 A condition, and the zone of a of oblique line portion is corrected.
Result by the 1st specialization means after specific, as from Fig. 5 A condition to shown in Fig. 5 B like that, the running pressure in the time of can also be by the actual cutout running of input and consume electric power, precision is corrected.That is, revise the oblique line a of portion, running pressure and consumption electric power when making the zone of a of oblique line portion comprise actual cutout running.
Result by the 1st specialization means after specific waits the test data (flow-lift, flow-consumptions electric power) of the pump that carries out before also can dispatching from the factory by front pump, obtain correction.At this moment, as shown in Figure 6, available high precision is with the pump characteristics specialization.In fact, the test data of front pump as long as import above-mentioned several data, just can not accomplished the specialization of approximate diagram 6.At this moment, shown in Fig. 5 B,,, can approach the specialization of Fig. 6 by selecting the center line in oblique line portion a zone from the revised state of precision.
By implementing the action of the 2nd specialization means, can be for the pump characteristics after specific by the 1st specialization means, with the operation point specialization of the pump in this equipment.
At this moment, make, measure actual running pressure (lift) or running flow or consume electric power, be input in the input device 5, implement the action of the 2nd specialization means by the running of diagnosis pump.
When 1. pressure is turned round in input
Measure and calculate pump intake pressure and pump discharge head, input running pressure.As a result, by obtaining the intersection point of flow-heat-capacity curve and flow-consumption electricity characteristic curve, as shown in Figure 7, can specific running flow and consumption electric power.
When 2. flow is turned round in input
Measure running flow and input with flowmeter.As a result, by obtaining the intersection point of flow-heat-capacity curve and flow-consumption electricity characteristic curve, as shown in Figure 8, can specific running pressure (lift) and consumption electric power.
When 3. input consumes electric power
Motor when turning round surely with the electric power instrumentation consumes electric power and input.As a result, by obtaining the intersection point of flow-heat-capacity curve and flow-consumption electricity characteristic curve, as shown in Figure 9, can specific running pressure (lift) and running flow.At this moment, also consumption electric power be can not measure, and revolution electric current value and input measured.
In addition, in fact, the mensuration of flow and consumption electric power usually needs the mensuration utensil of high price, and is also pretty troublesome.And running pressure as long as compound pressure-vacuum gauge is installed, at the discharge side setting pressure meter of pump in the suction side of pump, just can easily be calculated.
Before implementing the processing means, control actual lift in advance and import relatively good.This is because as shown in figure 10, can calculate the resistance curve of equipment side (pipe arrangement side).
Among Figure 10,
H
1-H
0=K
1Q
2 1
So, K
1=(H
1-H
0)/Q
2 1(H
1Be total head, H
0Be actual lift, Q
1Be flow)
That is, if Q
1, H
1, H
0Can be specific, then can obtain K
1
Therefore, arbitrarily the resistance F of the equipment side (pipe arrangement side) during flow Q is
F=H
0+K
1Q
2=H
0+(H
1-H
0)(Q/Q
1)
2。
In addition, actual lift, available controller described later is controlled more exactly.
When the control of actual lift is had any problem, as shown in figure 11, also can import 3 kinds of (pattern 1,2,3) numerical value earlier as the implementing virtual reality lift.
Processing means such as following acting on.
Among Figure 12, curve α
8By the flow-lift characteristic of the pump behind the 1st specialization means specialization.
At curve α
8On, the point that exists some figure not show.The coordinate of these points is defined as (q with flow and lift
1, h
1), (q
2, h
2) ...
The processing means are set some rotation number ratio for these points.If the rotation number ratio is 0.95 o'clock, q
1Move to q
1* 0.95, h
1Move to h
1* 0.95
2
That is, produce (0.95q
1, 0.95
2h
1), (0.95q
2, 0.95
2h
2) ... point, these points are linked up obtain curve α
7
Below similarly, establishing the rotation number ratio is 0.9,0.85,0.80 ..., make curve α
6～α
1
Curve β is the resistance curve of the equipment side (pipe arrangement side) of calculating with above-mentioned method shown in Figure 10.8. point is the real-world operation point shown in, and point 7.～1. is the operation point in the calculating when rotation number is changed.
Curve γ
8, by the flow-consumption electricity characteristic of the pump behind the 1st specialization mechanism specialization.
At curve γ
8On, the point that exists some figure not show.The coordinate of these points is defined as (q with flow and consumption electric power
1, w
1), (q
2, w
2) ...
The processing means are set the rotation number ratio as previously mentioned to these points.If the rotation number ratio is 0.95 o'clock, q
1Move to q
1* 0.95, w
1Move to w
1* 0.95
3
Its prerequisite is that even rotation number is changed, pump efficiency and moyor do not change yet.Frequency translation loss when in addition, also not considering to use transducer etc. is also passable.Consider these factors in advance, calculate consumption electric power more accurately.
As mentioned above, produce (0.95q
1, 0.95
3w
1), (0.95q
2, 0.95
3w
2) ... point, the curve that these points are linked to be is γ
7
Below similarly, establishing speed ratio is 0.9,0.85,0.80 ..., make curve γ
6～γ
1
At curve γ
6～γ
1On, represent the consumption electric power corresponding with point with operation point 8.～1..
Among Figure 12, the point of representing with oblique line portion is the design of plant point.That is when needing the flow of 3500l/min, be that the pipe arrangement resistance that comprises actual lift is the point in the calculating of 38.5m.8. point is the real-world operation point.
" deviation " of this design point and real-world operation point is to be produced by above-mentioned reason (seeing the explanation of prior art).In this example, with respect to the design point flow, in fact with the big flow running that surpasses 40%.
The processing means, with respect to the design point flow, the consumption electric power when representing suitable pump rotation number and this rotation number (operation point).In this example, point 4. is suitable operation point.With the operation point comparative result 8. of reality, as shown in table 1.
Table 1
| The operation point project | Actual operation point 8. | Suitable operation point 4. |
| Flow | 4900l/min | ?3500l/min |
| Lift | 27.5m | ?21m |
| The rotation number ratio | 1.0 | ?0.8 |
| Consume electric power | 38kW | ?19kW |
That is, can save 50% electric power.
In the above-mentioned example, the design point flow is defined as suitable operation point.But the design point flow might not be suitable operation point.Usually, be to leave some than the required flow of reality to determine the design point flow more than neededly.At this moment, can reduce rotation number more, save electric power.
That is be next energy-conservation, with the running of " really " project.
Among Figure 11, when having set implementing virtual reality lift (net lift), though the curve β shown in 3 chromosomes 12 is arranged, at this moment, also qualifications further specificly goes out 1 curve, with the equipment design point relatively, draw 1 diagnostic result.Also can compare, draw 3 diagnostic results with 3 curve β and equipment design point.
The summary process chart of the handling process that Figure 13 is a presentation graphs 1 to shown in Figure 12 and the fluid machinery diagnostic system that describes in detail.
In step 1, information (bore of pump, the specified output of motor etc.) is input to input device 5, these information are used for the characteristic specialization as fluid machinery diagnosis object, real-world operation.
In step 2, the information of the operation point specialization of the fluid machinery that is used for real-world operation (measured loads of running pressure or running flow etc.) is input in the input device 5.
In step 3, the information (actual lift) that is used for the drag characteristic specialization of equipment side is input in the input device 5.
In step 4, the passing of the operation point of the fluid machinery when calculating the rotation number variation that makes fluid machinery with computing device 4, and on output unit 6, show.
The present invention as mentioned above, does not bring into scene such as transducer, just can be controlled in the outside useless energy that consumes of pump.Therefore, because the investment results when importing transducer are clear and definite, so, have and make the energy-conservation efficient of on market, popularizing.
Among the present invention, also having proposed with the frequency converter is the controller of critical piece, and this controller is saved the mechanism of useless energy as control.The applicant has proposed the property regulation device of fluid machinery, and this controlling device is to be fit to one of controller that is used in combination with the present invention.
That is, be fit to the property regulation device of the fluid machinery that is used in combination with the present invention, can easily regulate pump performance, realize energy-conservation.That is, do not change original pump and control panel basically,, just can regulate pump performance as long as set up transducer.
Below, the property regulation device of fluid machinery is described.The 1st form when Figure 14 represents to use fluid machinery property regulation device of the present invention, installation.Mark 101 is pump unit, and pump unit 101 is pump 103 and motor 104 are set on common pedestal 102 and constitute.From sucking the fluid that pipe arrangement 105 imports,, be inhaled in the pump 103 and after boosting, discharge from pump discharge 103b from Pump Suction Nozzle 103a by suction side sluice valve 106 and short tube 107.By check valve 108, discharge sideslip plate valve 109, guiding is discharged pipe arrangement 110 to the fluid of discharging again.
The property regulation device (hereinafter referred to as controlling device) 111 of fluid machinery is installed on the short tube 107 by the cooling mechanism 112 that is made of the good aluminum alloy of thermal conductivity.
Among this embodiment, bolt that cooling mechanism 112 usefulness figure does not show and controlling device 111 are fixing, and U-bolt and the short tube 107 that does not show with figure fixed simultaneously.
The electric power that control panel 113 is supplied with is that input side cable 114 is directed to the frequency converter that is housed in the controlling device 111 from the input mechanism of controlling device 111, and frequency is converted.Electric power after frequency is converted is that outlet side cable 115 supplies to motor 104 from the output mechanism of controlling device 111.Produce lost heat in the frequency conversion in the controlling device 111, in this example, above-mentioned lost heat is dispelled the heat by the working fluid of pump by cooling mechanism 112 and short tube 107.
The 2nd example when Figure 15 represents to use controlling device of the present invention, installation.Mark 101 is pump unit.Pump unit 110 is pump 106 and motor 104 are set on the top of common pedestal 102 and constitute.From sucking the fluid that pipe arrangement 105 imports,, be inhaled in the pump 103 and after boosting, discharge from pump discharge 103b from Pump Suction Nozzle 103a by suction side sluice valve 106 and short tube 107.By check valve 108, discharge sideslip plate valve 109, guiding is discharged pipe arrangement 110 to the fluid of discharging again.
The electric power that control panel 113 is supplied with is that input side cable 114 is directed to the frequency converter that is housed in the controlling device 111 from the input mechanism of controlling device 111, and frequency is converted.Electric power after frequency is converted is that outlet side cable 115 supplies to motor 104 from the output mechanism of controlling device 111.
In the example of Figure 15, cooling mechanism 112 constitutes the water jacket of stainless steel, and is fixing with bolt and controlling device 111 that figure does not show, uses the flanged pin bolt of installation accessory 116 with the short tube 107 of L font simultaneously.The discharge side liquid of pump imports cooling mechanism 112 from little pipe arrangement 117, is bypassed to the suction side of pump by little pipe arrangement 118.
In this example, the lost heat in the frequency conversion dispels the heat to the pump work fluid by cooling mechanism 112 and little pipe arrangement 117,118.
In this example, carry out among Figure 15 insulation such shown in the dotted line 119.That is, medium on hot and cold water circulation way, heat does not move to atmosphere from the pipe arrangement surface.At this moment, it is difficult adopting the 1st example of Figure 14, and this example is effective.
Figure 16 A and Figure 16 B are the figure that represents controlling device shown in Figure 14 in detail, and Figure 16 A is the front elevation of biopsy cavity marker devices, and Figure 16 B is a profile.
Below, be Figure 17 with reference to the X VII one X VII line sectional view of Figure 16 A, the external structure of controlling device 111 is described.Frequency converter body 48 is housed in by in pedestal 46 and cover 47 housings that constitute.Pedestal 46 and covering clips sealed member 58 and do not show with figure between 47 bolt keeps and outer gas airtight.
Figure 18 A and Figure 18 B are the figure that represents Figure 15 shown device in detail, and Figure 18 A is the front elevation of biopsy cavity marker devices, and Figure 18 B is a planimetric map.Cooling mechanism 112 is water(-cooling) jackets of stainless steel, has the gateway 122 of working fluid.Identical in input side cable, outlet side cable, O shape ring 121 and the example shown in Figure 16.
Below, be Figure 19 with reference to X IX-X IX line sectional view of Figure 18 A, the external structure of controlling device 111 in this example is described.Frequency converter body 48 is housed in by in pedestal 46 and cover 47 housings that constitute.Pedestal 46 and covering clips between 47 by sealed member 58 and the bolt do not shown with figure, and is airtight with outer gas maintenance.
Rib 123 has 3 effects.The first improves intensity and rigidity, and water(-cooling) jacket is not out of shape because of the pressure of working fluid.It two is as liquid conductance leading-in device, guarantees the holdup time of working fluid in coolant jacket.It three is the area of contact that increase with working fluid, improves radiating effect.According to this example, as previously mentioned,, also be easy to cooling unit effectively even thermal insulation has been implemented in the pipe arrangement outside.
Below, with reference to Figure 20 A and Figure 20 B, the 3rd example of the present invention is described.Essential structure in the 3rd example, shown in Figure 20 A, identical with the 1st and the 2nd example.But, the controlling device 111 of the air-cooled in the 3rd example, the air-flow that utilizes the rotation of connector 126 to produce, this connector 126 is used to connect pump 103 and motor 104.
Usually, around connector 126, shown in Figure 20 B (XX of Figure 20 A is to view), be provided with the connector protection material that is used to the accident that prevents, in this example, this connector protection material used as cooling mechanism 112.
Connector protection material (cooling mechanism) the 112nd, aluminum alloy system, and, in order to improve the air cooling effect of utilizing said flow, be provided with some air coolings rib (fin) 128.The structure of outside is identical with the 1st and the 2nd example, can stand the wind and rain outside the room.
Below, the example shown in explanatory drawing 21A and Figure 21 B.Figure 21 A and Figure 21 B are Figure 14 another examples to device body shown in Figure 20.Figure 21 A is a front elevation, and Figure 21 B is a profile.Briefly, the difference of this example only is that outlet side cable 115 is located on the pedestal 46.
Owing to needn't be installed in the outlet side cable on the cooling mechanism, structure is simpler.The device of this example can be used for the water(-cooling) jacket type, also can be used for air-cooled.
Among Figure 16 A, Figure 16 B, Figure 18 A, Figure 21 A and Figure 21 B, the spiral lid of mark 124 expression, the O shape ring that does not show by figure are guaranteed airtight with outer gas.In lid, be provided with the output frequency controlling mechanism.For example, revolving stage switch, the suitably rotation number of regulated fluid machinery.
Among the present invention, be not provided for connecting one and cut off frequency converter parts output, that be equivalent to switch.That is, when electric power supplies to frequency converter, automatically begin output.Position when therefore, handle assembly is installed on the pipe arrangement is unrestricted.For example, can be installed in the position that child's hand reaches,, just can make the fluid machinery starting, stop as long as switching on or off power supply even perhaps be installed in narrow space.
The property regulation device (hereinafter referred to as controller) of the fluid machinery shown in Figure 14 to Figure 21 B is assembled in the system of the present invention, can controls useless energy more accurately.This controller can with the output frequency stage be set at 8 stages of 5% classification.The rotation number of this classification and above-mentioned processing means is than consistent, so on one side can make system works, Yi Bian the actual consumption electric power of checking.In addition, in the above-mentioned processing means,, in fact, just can calculate the electric power of consumption accurately as measured data as long as transducer is driven though ignored the loss of transducer.
This controller also is very effective not only as the mechanism of the useless energy of control, and as the mechanism that saves useless energy.
This is the place that is provided with because of pump, is generally suitable for using outside the room.Because needn't be housed in the control panel, so, do not need special improvement expenses and operating expenses.That is, as long as controller is taken to the scene, when investment results were good, directly the installation and control device got final product.
In addition, use this controller, can control actual lift accurately.That is, as shown in figure 22, the rotation number of pump is changed, the running pressure when running pressure (lift) the when valve (sluice valve) when comparing each rotation number is open and valve cutout, the point that both differences disappear is just represented actual lift.
Table 2
| No.????? | ⑧ | ?⑦ | ?⑥ | ?⑤ | ?④ | ?③ | ?② | ?① | ||
| Ratio of revolutions | 1.0 | ?0.95 | ?0.90 | ?0.85 | ?0.80 | ?0.75 | ?0.71 | ?0.67 | ||
| Lift (m) | Valve breakdown | 41.5 | ?37.5 | ?33.5 | ?30 | ?26 | ?23 | ?21 | ?19 | Real lift 19m |
| Valve is open | 32 | ?29.5 | ?27.5 | ?25.5 | ?23.5 | ?22 | ?20 | ?19 | ||
That is, in table 2 example, 19m is actual lift.
As a result, even when being not easy to control actual lift (when for example piping system is complicated), use controller of the present invention, just can easily control actual lift.With this value input input device 5 shown in Figure 1, implement the processing means, improve the precision of system more.
As the 1st above-mentioned specialization means, the 2nd specialization means, processing means, be to write down the program recording medium that makes computer action, this recording medium laptop of for example packing into can easily be carried to the use scene of pump.
Figure 23 is that expression is brought to by the skeleton diagram of the on-the-spot equipment of diagnosis fluid machinery running.
Above-mentioned equipment comprises computer PC, as writing down floppy disk (FD) or the CO-ROM and the printer PR of the recording medium of said procedure.Computer PC comprises master control part shown in Figure 11 (comprising control gear 3 and computing device 4), main storage means 2, input device 5, constitutes the LCD of output unit 6 parts.Printer PR constitutes the part of output unit 6 shown in Figure 1.In addition, above-mentioned equipment also comprises the compound pressure-vacuum gauge C that is installed in fluid machinery suction sides such as pump
PG, be installed in the pressure meter P that discharges side
G, and the motor of measuring driving fluid machinery consume the ammeter P of electric power
W
As mentioned above, can be controlled at the outside useless energy that consumes of fluid machinery with the present invention.In addition, use the present invention, will transducer etc. do not take the on-the-spot useless energy that just can be controlled at the outside consumption of fluid machinery to.Therefore, the investment results when importing transducer etc. are clear and definite, so can make energy-conservation coming into the market.
The controller of the application of the invention (property regulation device), the useless energy of may command also can avoid waste simultaneously.
Adopt the present invention, can reduce the rotation number of fluid machinery, thereby, the life-span of bearing and mechanical seal etc. can be prolonged.
The present invention can stop pump, also the aperture of valve be changed, that is, the equipment to the user does not cause fault ground to carry out so-called " diagnosis of energy saving ".In other words, can in equipment work, (not being day off, is on ordinary days) implement.
In addition, even also can be corresponding when high " diagnosis of energy saving " of precision prescribed.At this moment, the data that need also that sometimes equipment is temporarily stopped or taking valve opening to change.
Adopt the present invention, can be according to various situations, carry out the importing of controller or to the suitable processing of the conversion of " the little fluid machinery of a little level capacity " etc.
In addition, owing to can control the loss of pipe arrangement side (equipment side), for example, also can calculate simply pipe arrangement is directly improved energy-conservation more than the one-level.
Below, be example with the turbulence pump, the ad hoc approach of fluid machinery characteristic of the present invention is described.The ad hoc approach of following fluid machinery characteristic is with the 1st and 2nd specialization means more specific example of Fig. 1 to the example shown in Figure 13.
Usually, turbulence pump has and bore, motor output and the corresponding machine of rotation number, is exported the lift that determines and is determined haply by make water consumption scope, the motor of bore, the specified rotation number decision of motor.Therefore, can set the specific rate (Ns) of pump from bore, impeller progression, motor output and the rotation number of turbulence pump.Here, specific rate (Ns) is the numeral of using in the design phase of pump, represents with following formula.
Ns=NQ
1/2/H
3/4
In the formula, N is a rotation number, and Q is a flow, and H is the lift of impeller one-level.
The pump characteristics of flow-lift characteristic and flow-axle dynamic property etc., because of specific rate different.Pump efficiency is different because of specific rate similarly.Pump characteristics (flow-lift, flow-axle power) can be regulated as shown in figure 24 with respect to specific rate (pump dimensionless performance), and pump efficiency can be regulated as shown in figure 25 (specific rate-pump efficiency characteristic).In Figure 24, transverse axis is represented nondimensional mass flow (Q), and the longitudinal axis is represented zero dimension lift (H) and zero dimension axle power (KW).Among Figure 24, expression specific rate (Ns) is 560,400,280 ..., 50 o'clock pump characteristics.Among Figure 25, transverse axis is represented specific rate (Ns), and the longitudinal axis is represented pump efficiency η (%).
Therefore, in Figure 24, if decision representative point (dimensioned flow, lift and axle power) then can be set whole pump characteristicss as virtual characteristics.
The stage is finished in setting in the virtual characteristics of pump, by revising virtual characteristics, but the characteristic of particular fluid machinery.So that the determination data when the specific and pump of the operation point (flow) of pump is turned round (lift and consumption electric power) is integrated.In addition, Figure 24 and Figure 25 are placed in the database in advance.
Below, with reference to Figure 26 A to Figure 26 D, lift when explanation is turned round with present situation and the flow that consumes electric power and calculate with fluid machinery efficient and motor efficiency, the correction stage of the specific and virtual characteristics of setting stage when revising virtual characteristics, the pump virtual characteristics and pump operation point (flow).
Shown in Figure 26 A, the pump pattern information that comprises bore (φ) and progression (STG), comprise specified output (P
0) and the motor information of specified rotation number (N), the lift (H) when comprising the present situation running and consume electric power (P
i) determination data information, be input in the input device shown in Figure 15.
Then, in master control part shown in Figure 11, with the virtual pump characteristics shown in following step 1～5 construction drawing 26B.That is, in step 1, from the specified output (P of the bore (φ) of pump and progression (STG), motor
0) and specified rotation number (N), specific specific rate (Ns).In step 2, from the bore (φ) of pump and progression (STG), the specified rotation number (N) of motor, specific rate (Ns), specific Q
BEP(peak efficiency flow).Here, Q
BEP(peak efficiency flow) is meant the flow at best efficiency point.In step 3, from bore (φ) and the progression (STG) and the specific rate (Ns) of pump, specific η
P(pump efficiency).In step 4, use formula H
BEP=η
pP0/0.163 γ Q
BEP, calculate H
BEP(peak efficiency lift).Here, H
BEP(peak efficiency lift) is meant the lift at best efficiency point.γ is the proportion of working liquid body.In step 5, with specific specific rate and the representative point ((Q that goes out
BEP, H
BEP) and (Q
BEP, P
0)) be the basis, use pump dimensionless performance shown in Figure 24, shown in the dotted line of Figure 26 B, make virtual pump characteristics.That is, from Figure 24, select with at the specific specific rate of step 1 (Ns) corresponding flow-heat-capacity curve, make (1,0,1, the 0) point of Figure 24 and the (Q of Fig. 26 B
BEP, H
BEP) put the flow-heat-capacity curve that overlaps ground, the above-mentioned selection of drawing, like this, be made into virtual flow-heat-capacity curve.In addition, from Figure 24, select with at the specific specific rate of step 1 (Ns) corresponding flow-axle dynamic characteristic curves, make (1,0,1, the 0) point of Figure 24 and the (Q of Figure 26 B
BEP, P
0) put the flow-axle dynamic characteristic curves that overlaps ground, the above-mentioned selection of drawing, like this, be made into virtual flow-axle dynamic characteristic curves.Step 1 is to 3 predetermined existence in the database.Then, with following step 1～2, it is specific to carry out the flow shown in Figure 26 C.That is, in step 1, from the specified output P of motor
0Specific η
M(motor efficiency).At this moment, the specified output (P of motor
0) be pre-existing in the database, so that at when input η
MBy specific.In step 2, with formula Q=η
Mη
PP
i/ 0.163 γ H calculates Q (present situation flow).Because at step 1 and step 2 present situation flow (Q) and η
MBy specific, so present situation lift (H) is known, like this, can on flow-lift system of coordinates of Figure 26 C, specific operation point be shown, in addition, by calculating P
iη
M, can on flow-axle power system of coordinates, specific operation point be shown.Then, with following step 1 to 2, shown in Figure 26 D, specific pump characteristics of carrying out virtual pump characteristics correction.Among Figure 26 D, dotted line is represented virtual pump characteristics, and solid line is represented revised pump characteristics.That is,, use H in step 1
A/ H
BRatio, revise the lift of virtual pump characteristics.In step 2, use P
A/ P
BRatio, revise virtual pump characteristics the axle power.Here, H
A, P
ABe by the lift of specific specific operation point and axle power, H in Figure 26 C
B, P
B, the lift on the virtual pump curve when being present situation flow Q respectively and axle power.
Below, with reference to Figure 27 A to Figure 27 D, lift when explanation is turned round with present situation and consume electric power, the lift the when flow of calculating with the setting value of fluid machinery efficient and motor efficiency and cutout running and consume electric power, the correction stage of the specific and virtual characteristics of setting stage during the correction virtual characteristics, the pump virtual characteristics and pump operation point (flow).
Shown in Figure 27 A, the pump pattern information that comprises bore (φ) and progression (STG), comprise specified output (P
0) and the motor information of specified rotation number (N), the lift (H) when comprising the present situation running and consume electric power (P
i), the lift (Hs) in when running cutout and consume electric power (P
Is) determination data information, be input in the input device shown in Figure 15.
Then, in master control part shown in Figure 11, with the virtual pump characteristics shown in following step 1～3 construction drawing 27B.That is, in step 1, from the specified output (P of the bore (φ) of pump and progression (STG), motor
0) and specified rotation number (N), specific specific rate (Ns).In step 2, from the specified rotation number (N) and the specific rate (Ns) of the bore (φ) of pump and progression (STG), motor, specific Q
BEP(peak efficiency flow).In step 3, with the directions X representative point as Q
BEP, with Y direction representative point as H
S(lift during the cutout running) and P
Is(the consumption electric power during the cutout running) shown in Figure 27 B, makes virtual pump characteristics.At this moment, with Figure 26 A to Figure 26 D illustrated embodiment similarly, use pump dimensionless performance shown in Figure 24, make virtual pump characteristics.Step 1 and step 2 are pre-existing in the database.
Then, to 2, it is specific to carry out the flow shown in Figure 27 C with following step 1.That is, in step 1, from the specified output (P of motor
0), specific η
M(motor efficiency).At this moment, the specified output (P of motor
0) be pre-existing in the database, so that at when input η
MBy specific.In step 2, with formula Q=η
Mη
PP
i/ 0.163 γ H calculates Q (present situation flow).Because at step 1 and step 2 present situation flow (Q) and η
MBy specific, so present situation lift (H) is known, like this, can on flow-lift system of coordinates of Figure 27 C, specific operation point be shown, in addition, by calculating P
iη
M, can on flow-axle power system of coordinates, specific operation point be shown.
Then, with following step 1 to 2, shown in Figure 27 D, specific pump characteristics of carrying out virtual pump characteristics correction.Among Figure 27 D, dotted line is represented virtual pump characteristics, and solid line is represented revised pump characteristics.That is,, use Q/Q in step 1
BRatio, revise the flow of virtual pump characteristics.In step 2, with shaft power curve be modified to be similar to by (0, P
Isη
M), (Q, P
iη
M) curve.
Below, with reference to Figure 28 A to Figure 28 D, lift when explanation is turned round with present situation and consume electric power, the lift the when flow of calculating with the setting value of fluid machinery efficient and motor efficiency and the running of valve standard-sized sheet and consume electric power, the correction stage of the setting stage of the pump virtual characteristics during the correction virtual characteristics and the specific and virtual characteristics of pump operation point (flow).
Shown in Figure 28 A, the pump pattern information that comprises bore (φ) and progression (STG), comprise specified output (P
0) and the motor information of specified rotation number (N), the lift (H) when comprising the present situation running and consume electric power (P
i), the lift (Hv) in valve standard-sized sheet when running and consume electric power (P
IV) determination data information, be input in the input device shown in Figure 15.
Then, in master control part shown in Figure 11, with the virtual pump characteristics shown in following step 1～5 construction drawing 28B.That is, in step 1, from the specified output (P of the bore (φ) of pump and progression (STG), motor
0) and specified rotation number (N), specific specific rate (Ns).In step 2, from the specified rotation number (N) and the specific rate (Ns) of the bore (φ) of pump and progression (STG), motor, specific Q
BEP(peak efficiency flow).In step 3, from bore (φ) and the progression (STG) and the specific rate (Ns) of pump, specific η
P(pump efficiency).In step 4, use formula H
BEP=η
DP
0/ 0.163 γ Q
BEP, calculate H
BEP(peak efficiency lift).In step 5, with specific specific rate and the representative point ((Q that goes out
BEP, H
BEP) and (Q
BEP, P
0)) be the basis, shown in the dotted line of Figure 28 B, make virtual pump characteristics.At this moment, with Figure 26 A to Figure 26 D illustrated embodiment similarly, use pump dimensionless performance shown in Figure 24, make virtual pump characteristics.Step 1 is pre-existing in the database to 3.
Then, to 2, it is specific to carry out the flow shown in Figure 28 C with following step 1.That is, in step 1, from the specified output (P of motor
0) specific η
M(motor efficiency).At this moment, the specified output (P of motor
0)) be pre-existing in the database, so that at when input η
MBy specific.In step 2, with formula Q=η
Mη
PP
i/ 0.163 γ H calculates Q (present situation flow).Because at step 1 and step 2 present situation flow (Q) and η
MBy specific, so present situation lift (H) is known, like this, can on flow-lift system of coordinates of Figure 28 C, specific operation point be shown, in addition, by calculating P
iη
M, can on flow-axle power system of coordinates, specific operation point be shown.
Then with following step 1 to 5, shown in Figure 28 D, specific pump characteristics of carrying out virtual pump characteristics correction.Among Figure 28 D, dotted line is represented virtual pump characteristics, and solid line is represented revised pump characteristics.That is,, use H in step 1
A/ H
BRatio, revise the lift of virtual pump characteristics.In step 2, use P
A/ P
BRatio, revise virtual pump characteristics the axle power.Here, H
A, P
ABe by the lift of specific specific operation point and axle power, H in Figure 28 C
B, P
BLift on the virtual pump curve when being present situation flow Q respectively and axle power.In step 3, the lift (H when the valve standard-sized sheet turns round
V) flow (Q when the particular valve standard-sized sheet turns round
V).In step 4, specific Q
VThe time axle power (P
IVη
M).In step 5, shaft power curve is modified to is similar to by (Q, P
iη
M), (Q
V, P
IVη
M) curve.
Below, with reference to Figure 29 A to Figure 29 D, lift when explanation is turned round with present situation and consume electric power, when the flow of calculating with the setting value of fluid machinery efficient and motor efficiency and cutout running and the lift the during running of valve standard-sized sheet and consume electric power, the correction stage of the setting stage of the pump virtual characteristics during the correction virtual characteristics and the specific and virtual characteristics of pump operation point (flow).
Shown in Figure 29 A, the pump pattern information that comprises bore (φ) and progression (STG), comprise specified output (P
0) and the motor information of specified rotation number (N), the lift (H) when comprising the present situation running and consume electric power (P
i), the lift (Hs) in when running cutout and consume electric power (P
Is), the lift (Hs) in valve standard-sized sheet when running and consume electric power (P
IV) determination data information, be input in the input device shown in Figure 15.
Then, in master control part shown in Figure 11, with the virtual pump characteristics shown in following step 1～3 specific pattern 29B.That is, in step 1, from the specified output (P of the bore (φ) of pump and progression (STG), motor
0) and specified rotation number (N), specific specific rate (Ns).In step 2, from the bore (φ) of pump and progression (STG), the specified rotation number (N) of motor, specific rate (Ns), specific Q
BEP(peak efficiency flow).In step 3, with the directions X representative point as Q
BEP, with Y direction representative point as H
SAnd P
Is, shown in Figure 29 B, make virtual pump characteristics.At this moment, with Figure 26 A to Figure 26 D illustrated embodiment similarly, use pump dimensionless performance shown in Figure 24, make virtual pump characteristics.Step 1 and step 2 are pre-existing in the database.
Then, to 2, it is specific to carry out the flow shown in Figure 29 C with following step 1.That is, in step 1, from the specified output (P of motor
0), specific η
M(motor efficiency).At this moment, the specified output (P of motor
0)) be pre-existing in the database, so that at when input η
MBy specific.In step 2, with formula Q=η
Mη
PP
i/ 0.163 γ H calculates Q (present situation flow).Because at step 1 and step 2 present situation flow (Q) and η
MBy specific, so present situation lift (H) is known, like this, can on flow-lift system of coordinates of Figure 29 C, specific operation point be shown, in addition, by calculating P
iη
M, can on flow-axle power system of coordinates, specific operation point be shown.
Then, with following step 1 to 2, shown in Figure 29 D, specific pump characteristics of carrying out virtual pump characteristics correction.Among Figure 29 D, dotted line is represented virtual pump characteristics, and solid line is represented revised pump characteristics.That is,, use Q/Q in step 1
BRatio, revise the flow of virtual pump characteristics.In step 2, with shaft power curve be modified to be similar to by (0, P
Isη
M), (Q, P
iη
M), (Q
V, P
IVη
M) curve.
Below, with reference to Figure 30 A to Figure 30 D, the lift of explanation during from the running of virtual characteristics and present situation, specific operation point (flow), the correction stage of the specific and virtual characteristics of setting stage when consuming the above-mentioned virtual characteristics of electric power correction, the pump virtual characteristics and pump operation point (flow) with present situation.
Shown in Figure 30 A, the pump pattern information that comprises bore (φ) and progression (STG), the 1st syllabus (Q1, H1) and the 2nd syllabus (Q2, H2), comprise specified output (P
0)) and the motor information of specified rotation number (N), the lift (H) when comprising the present situation running and consume electric power (P
i) determination data, be input in the input device shown in Figure 15.
Then, in master control part shown in Figure 11, with the virtual pump characteristics shown in following step 1～5 construction drawing 30B.That is, in step 1, from the specified output (P of the bore (φ) of pump and progression (STG), motor
0) and specified rotation number (N), specific specific rate (Ns).In step 2, use formula H
SCutout lift (H is set in '=(H1+2H2)/3
S').In step 3, with the specific specific rate (H that goes out
S) be the basis, make by (0, H
S'), the head curve (dotting) of (Q2, H2), and make by (Q
MAX, P
0) shaft power curve (dotting).At this moment, use pump dimensionless performance shown in Figure 24, make virtual pump characteristics.In step 4, (Q2, H2) as initial point, with the ratio of Δ H/ (H1-H2), revised lift, make the head curve of representing with solid line.In step 5, the head curve correction value that with (0,0) is initial point is used for shaft power curve, revise, make the shaft power curve that double dot dash line is represented.Step 1 is pre-existing in the database.
Then, to 2, it is specific to carry out the flow shown in Figure 30 C with following step 1.That is, in step 1, from the specified output (P of motor
0), specific η
M(motor efficiency).In step 2, the lift (H) when present situation turns round, specific present situation running flow (Q).By calculating P
iη
M, specific present situation axle power (P
iη
M).Step 1 exists in the database.
Follow with following step, shown in Figure 30 D, specific pump characteristics of carrying out the virtual characteristics correction.That is, with (P
iη
M)/P
ARatio, revise shaft power curve, make the shaft power curve of representing with solid line.
Below, with reference to Figure 31 A to Figure 31 D, lift when illustrating from virtual characteristics and present situation running, specific operation point (flow), lift when consuming electric power and valve standard-sized sheet and consume electric power with present situation, the correction stage of the specific and virtual characteristics of setting stage when revising above-mentioned virtual characteristics, the pump virtual characteristics and pump operation point (flow).
Shown in Figure 31 A, the pump pattern information that comprises bore (φ) and progression (STG), the 1st syllabus (Q1, H1) and the 2nd syllabus (Q2, H2), comprise specified output (P
0) and the motor information of specified rotation number (N), the lift (H) when comprising the present situation running and consume electric power (P
i), the lift (H in valve standard-sized sheet when running
V) and consume electric power (P
IV) determination data, be input in the input device shown in Figure 15.
Then, in master control part shown in Figure 11, with the virtual pump characteristics shown in following step 1～5 construction drawing 31B.That is, in step 1, from the specified output (P of the bore (φ) of pump and progression (STG), motor
0) and specified rotation number (N), specific specific rate (Ns).In step 2, use formula H
SCutout lift (H is set in '=(H1+2H2)/3
S').In step 3, with the specific specific rate (H that goes out
S) be the basis, make by (0, H
S'), the head curve (dotting) of (Q2, H2), and make by (Q
MAX, P
0) shaft power curve (dotting).At this moment, use pump dimensionless performance shown in Figure 24, make virtual pump characteristics.In step 4, (Q2, H2) as initial point, with the ratio of Δ H/ (H1-H2), revised lift, make the head curve of representing with solid line.In step 5, the head curve correction value that with (0,0) is initial point is used for shaft power curve, revise, make the shaft power curve that double dot dash line is represented.Step 1 exists in the database.
Then, to 2, it is specific to carry out the flow shown in Figure 31 C with following step 1.That is, in step 1, from the specified output (P of motor
0)), specific η
M(motor efficiency).In step 2, the lift (H) when present situation turns round, specific present situation running flow (Q).By calculating P
iη
M, specific present situation axle power (P
iη
M).Step 1 exists in the database.
Then with following step 1 to 3, shown in Figure 31 D, specific pump characteristics of carrying out the virtual characteristics correction.That is, in step 1, with (P
iη
M)/P
ARatio, revise shaft power curve.In step 2, from H
VFlow (Q during the particular valve standard-sized sheet
V), and axle power (P during the particular valve standard-sized sheet
IVη
M).In step 3, shaft power curve is modified to approximate by (Q, P
iη
M), (Q
V, P
IVη
M) curve.As mentioned above,, carry out the correction of the specific and empty characteristic of the setting of pump virtual characteristics and pump operation point (flow) with any method among Figure 26 A to Figure 31 D, can the particular pump characteristic.So, even when can not get the pump testing data, also can specific characteristic curve as shown in Figure 6, so, availablely diagnostic system of the present invention is played a role than higher precision.Diagnostic system shown in Fig. 1 to Figure 31 A～D is at the scene of pump running in real time, and actual measurement consumption electric power is diagnosed, though the diagnostic accuracy height, taking of data is cumbersome.
Diagnostic system shown in Fig. 1 to Figure 31 A～D, real-world operation pump and diagnosing is herein referred to as " this diagnosis " at the scene.The present inventor has inquired into before carrying out this on-the-spot diagnosis, and the simple diagnosis of acting and carrying out is earlier learnt the investment results of importing transducer or the method for cost effectiveness (CE).Here said investment results or cost effectiveness (CE) are meant few effect that the expense that imports with respect to transducer, the consumption electric power that obtains by importing transducer subtract.As a result, the result of simple and easy prior diagnosis is, can not want this diagnosis, also can reduce diagnostic fees and use.
Below, with reference to an embodiment of the energy-conservation prior diagnostic system of description of drawings fluid machinery of the present invention.
The hardware construction of the energy-conservation prior diagnostic system of fluid machinery of present embodiment, identical with hardware construction shown in Figure 1.In the present embodiment, fluid machinery is to be that example describes with the pump.
The energy-conservation prior diagnostic system of fluid machinery as shown in Figure 1, has the master control part 1 of control system integral body and the main storage means 2 that is being connected with master control part 1.Master control part 1 is made of control gear 3 and computing device 4.Master control part 1 is connecting input device 5 and output unit 6.Input device 5 is made of keyboard or mouse etc.Output unit 6 is made of printer, display device etc.
Figure 32 is the figure of expression pump duty-lift characteristic and flow-consumption electricity characteristic, and transverse axis is represented flow (1/min), and the longitudinal axis is represented total head (m) or consumed electric power (kW).
Flow-the lift of the motor-mount pump when being exchanged the source power supply driving and the data of flow-consumption electric power with the form of test report or representing characteristic curve, can obtain usually in advance.These data are for example imported 5 points (among Figure 32 with 5 points represented of point), then shown in figure 32, the available suitable function curve α that draws
8And γ
8
Black triangle among the figure is a point of having imported equipment side plan important item.Square being directly proportional of pipe arrangement loss and flow, so, by importing actual lift (being the pipe impedance of flow when being zero), can draw by the pipe impedance curve β of the said equipment side important item.
When not knowing actual lift, also can be set is to plan 50% of lift.
The present invention is provided with the calculating means, and these calculating means are calculated reduction effect when adopting frequency converter that the fluid machinery rotation number is reduced, that consume electric power.Calculating means such as following work (seeing Figure 33).
At curve α
8On exist the point that some figure do not show.The coordinate of these points is defined as (q by flow and lift
1, h
1), (q
2, h
2) ...
The calculating means are set some rotation number ratio to these points.If the rotation number ratio is 0.95 o'clock, q
1Move to q
1* 0.95, h
1Move to h
1* 0.95
2
That is, produce (0.95q
1, 0.95
2h
1), (0.95q
2,, 0.95
2h
2) ... point, these points are linked up becomes curve α
7
Below, similarly, establishing the rotation number ratio is 0.9,0.85,0.8 ..., make α
6～α
1Curve.
Curve β is the resistance curve with the specific equipment side (pipe arrangement side) of preceding method.8. point is the real-world operation point shown in, and point 7.～1. is the operation point in calculating when rotation number is changed.
But, because it is more than needed to think that the planned value (calculated value) of pipe arrangement loss has, so real operation point is usually in big flow side.
At curve γ
8On exist the point that some figure do not show.The coordinate of these points is defined as ((q with flow and consumption electric power
1, w
1), (q
2, w
2) ...
The calculating means are to these point as above-mentioned some rotation number ratio of similarly setting.If the rotation number ratio is 0.95 o'clock, q
1Move to q
1* 0.95, w
1Move to w
1* 0.95
3
Its prerequisite is that even rotation number is changed, pump efficiency and moyor do not change yet.Frequency conversion loss when in addition, also not considering to use transducer etc.Also can consider these factors in advance, calculate consumption electric power more accurately.
As mentioned above, produce (0.95q
1, 0.95
3w
1), (0.95q
2, 0.95
3w
2) ... point, these points are linked up becomes curve γ
7
Below, similarly, establishing the rotation number ratio is 0.8,0.85,0.8 ..., make γ
6～γ
1Curve.
At curve γ
6～γ
1On, represent the consumption electric power corresponding with point with operation point 8.～1..
Figure 34 is with the example of output unit 6 with the content output (printing) of Figure 33 explanation.That is, Figure 34 is the figure of expression with the diagnostic result 10 of output unit 6 outputs.The plotted curve up and down of Figure 34 is illustrated in flow-heat-capacity curve and flow-consumption electricity characteristic curve that Figure 33 tries to achieve.Among Figure 34, the table of foot represents that with A this part is amplified expression in Figure 35.The A of Figure 34 partly is Figure 35, is that expression consumes the table that electric power is cut down calculated value.Among Figure 35, the real-world operation flow when stringer (project) expression source power supply drives, when using transducer and plan flow to coincide and 3 conditions when using transducer to reduce than the plan flow.
Walk crosswise and putting down in writing rotation number than (source power supply is 1.0 when driving), consumption electric power, consumption electric power amount (consume electric power and take advantage of the operating time), CO
2Discharge capacity (consumption electric power amount is taken advantage of the system among the figure), consumption electric power reduction, cut down the electric lighting bill (13 yen/kwh calculates with the electric power unit price), reduction rate (electric power amount CO
2The electricity charge).
In this example,, just can save 286000 yen of the electricity charge in energy-conservation 18%, one year as long as flow and planned value are coincide.In addition, it is more than needed to consider that plan flow itself has, and when for example hypothesis can be saved 10% flow, then can save energy and can save 639600 yen of the electricity charge in 40%, one year.
Therefore, import the equipment investment of transducer, point the day and await for it between its payoff period.
The processing means of calculating means recited above (the consumption electric power when these calculating means are calculated with frequency converter reduction fluid machinery rotation number is cut down effect) and demonstration result of calculation are to write down program recording medium, and this program makes computer action.This recording medium is for example packed in the computer.
Figure 36 is the example that expression utilizes the energy-conservation prior diagnostic system of fluid machinery of computer.Said system has: computer PC, the recording medium that writing down said procedure of LSD that comprise master control part shown in Figure 11 (comprising control gear 3 and computing device 4), main storage means 2, input device 5, constitutes the part of output unit 6 is the printer (PR) of the part of floppy disk (FD) or CD-ROM, formation output unit 6 shown in Figure 1.
As mentioned above, can be controlled at the outside useless energy that consumes of fluid machinery in advance with the present invention.In addition, the fluid machinery that do not turn round practically at the scene can calculate easily with transducer etc. and be rotated that number is regulated and the energy saved.Therefore, can clearly import the investment results and the cost effectiveness (CE) of transducer in advance simply, can easily make and energy-conservationly be accepted by market.
Below, with reference to the characteristic display method of description of drawings fluid machinery of the present invention and the embodiment of demonstration thing.
Figure 37 represents to be used for the example of the driving turbulence pump of motor (three phase induction motor).The inboard of outermost square frame line 10 is planes 11, the demonstration thing of papers such as these plane 11 formation product samples.In this plane (demonstration thing) 11, putting down in writing the curve 12 of representing following Q-H characteristic and the information 14,15 relevant etc. with consuming electric power.
In the above-mentioned plane 11,9 curves 12 (transverse axis is represented discharge capacity, and the longitudinal axis is represented total head) of representing the Q-H characteristics are correspondingly arranged, near each curve 12, putting down in writing the operating frequency 13 of motor (pump) with numeral with the motor frequency number.These Q-H characteristic curves 12 can all be measured datas, also can represent with the calculated value that calculate following formula (1).
Q∝N
H∝N
2
N∝F
W∝N
3????……(1)
In the formula, Q is a discharge flow rate, and H is a total head, and N is a rotation number, and F is a frequency, and W consumes electric power.
Near above-mentioned each Q-H characteristic curve 12, putting down in writing as the summary consumption electric power 14 and the summary year electricity charge 15 that consume power information with numeral.Here, even same frequency consumes electric power (electricity charge) also because of operation point is that discharge flow rate is different, in this example, consumption electric power (electricity charge) during maximum load discharge capacity (in the selected scope of the pump when source power supply drives) is documented in Q-H characteristic curve 12 1 sides as typical value.
Promptly, in frequency be 50Hz Q-H characteristic curve 12 near, summary when to put down in writing frequency be the direct supply motor of source power supply of 50Hz consumes electric power 14a and summary year electricity charge 15a, beyond it Q-H characteristic curve 12 of frequency near, putting down in writing reduction, this reduction be the summary that comprises converter loss when adopting transducer consume electric power 14b and summary year electricity charge 15b with said frequencies the reduction of comparison during for 50Hz.
For example, it is 10.50kw that the summary during maximum load discharge capacity when turning round with source power supply 50Hz consumes electric power, and like this, the summary year electricity charge of calculating with operating time 8400h/, 13 yen/kwh of the electricity charge are 1150000 yen.And when adopting transducer, the summary during for example with frequency 45Hz running consumes electric power, compares during with the source power supply running of above-mentioned 50Hz, can cut down 2.46kw, and the electricity charge of summary year are cut down 269000 yen.
On the above-mentioned plane (demonstration thing) 11, also putting down in writing the price 16 of transducer simultaneously, this price 16 is 498000 yen in this example.Like this, as previously mentioned, when adopting transducer to replace the running of 50Hz source power supply with the 45Hz frequency, the monomer investment (or expense) that just can reclaim transducer with 1.85 (489000/26000).
Here, consider that the operating time and the electricity charge (kwh unit price) are different because of each scene, each department, and, also comprise the mounting cost of transducer etc. in the investment (or expense), compare with pump characteristics demonstration thing before, can easily calculate investment results or cost effectiveness (CE).
On the above-mentioned plane (demonstration thing) 11, selected scope 17 with dashed lines of the pump when source power supply drives surround expression, like this, when wanting to change the pump of a little level capacity, can easily know its possibility.In addition, the product sample paper etc. that constitutes little one-level volumetric pump shows on the plane of thing also have and above-mentioned same expression.In addition, (demonstration thing) then can easily relatively change the pump of a little level capacity and the investment results of setting up transducer if also express price (figure does not show) on 11 on the plane.
In addition, on above-mentioned plane (demonstration thing) 11, putting down in writing and 18 of the design conditions that consume the electric power relevant information, in this example, putting down in writing the operating time is 8400h/, and the electricity charge are 13 yen/kwh.Like this, when operating time etc. not simultaneously, consider that as long as its difference is partly multiplication and division computing simply.
Below, with reference to Figure 37 and Figure 38, the investment results of importing transducer or the Simple Calculation example of cost effectiveness (CE) are described.Among Figure 38, represent in Figure 37 plane 11 an only example of required pump important item 19 when urgent, represent the example of daily required pump important item 20 with single circle with two circles.This example is considered when nearly all operating condition (important item), though the pump of a little level capacity is just enough, the important item that consideration comes to a point is selected pump.
The operating time of daily required important item is 6000h/, and the electricity charge are 20 yen/kwh.At this moment, operating frequency is that 40Hz gets final product.So, compare when not using transducer, from Figure 37 and Figure 38 as can be known, consume electric power and can cut down 4.86kw.Like this, the electricity charge can be cut down 4.86kw * 6000h * 20 yen/kwh=583200 yen in 1 year.
Because the price of transducer is 498000 yen, even consider the transducer installation fee, also an offer 1 year is with regard to recyclable investment.Like this, according to the present invention, can obtain to import the investment results of transducer in the utmost point short time.
Figure 39 represents the characteristic display method of fluid machinery of the present invention and shows the 2nd embodiment of thing.In this example, put down in writing in more detail and the information that consumes electrical.That is, near Q-H characteristic curve 12, having put down in writing the information relevant with electric power is the summary year electricity charge 15, simultaneously, has increased some curves (consumption electrical force profiles) 21 in addition, and these curve 21 expressions and motor frequency consume the relation of electric power and discharge capacity accordingly.Near this curve 21, put down in writing reduction rate (%) with numeral and consumed electric power 14 with the summary identical with the 1st embodiment.
According to this embodiment, wish to calculate accurately transducer when importing the investment results of (setting up) or cost effectiveness (CE) and energy-conservation absolute magnitude, consume electrical force profiles 21 by reading, can realize this hope.
Figure 40 represents the characteristic display method of fluid machinery of the present invention and shows the 3rd embodiment of thing.In this example, on same system of coordinates, show the some consumption electrical force profiles 23 that wait that respectively consume electric power by above-mentioned Q-H characteristic curve 12, rotation number (frequency) and discharge capacity decision.Dot etc. and to consume electrical force profiles 23, near this curve 23, put down in writing year electricity charge 24 with numeral.
According to this embodiment, an available plotted curve obtains the effect of plotted curve shown in Figure 37 and plotted curve shown in Figure 39 blanketly.
Below, the system that utilizes COMPUTER CALCULATION, mapping is described.This system, the flow-pressure characteristic and the flow-consumption electric power data of the band motor fluid machinery when being exchanged the source power supply driving by input can obtain Figure 37 demonstration thing extremely shown in Figure 40 or consume electric power reading line chart.
Aforementioned calculation, do the hardware construction of drawing system, identical with hardware construction shown in Figure 1.Calculate, have the master control part 1 of control system integral body, the main storage means 2 that is being connected with master control part 1 as drawing system.Master control part 1 is made of control gear 3 and computing device 4.Master control part 1 is connecting input device 5 and output unit 6.Input device 5 is made of keyboard or mouse etc.Output unit 6 is made of printer, display device etc.Among Fig. 1, thick arrow is represented the trend of data and program, and thin arrow is represented the trend of control signal.
Figure 41 is the summary process chart, roughly represents calculating shown in Figure 1, makes the handling process in the drawing system.
In step 1, flow-lift characteristic and flow-consumption electricity characteristic data during certain rotation number of the band motor fluid machinery when quilt is exchanged the source power supply driving are input to input device 5.In addition, above-mentioned data also can be stored in the main storage means 2 in advance.
Then, in step 2, flow-lift characteristic and flow-consumption electricity characteristic when obtaining the some rotation number different with the rotation number of importing in step 1 with calculating.Calculate and carry out with above-mentioned formula (1).At this moment, can not calculate yet, but import the measured data of each rotation number.
Then, in step 3, input and the working unit time of fluid machinery, the electricity charge of unit consumption electric power amount.
Then, in step 4, the flow-lift characteristic when counting with some curve representation different rotary simultaneously, is shown in an information table relevant with consuming electric power on the output unit 6 on same one side.This output unit 6 is made of display devices such as printer or LCD as previously mentioned.In the above-mentioned information relevant, comprising Figure 37 and various information shown in Figure 40 extremely with consuming electric power.
Utilize computer calculating, make drawing system, identical with structure shown in Figure 36.Said system has as shown in figure 36: computer P C, the recording medium that writing down said procedure of LSD that comprises master control part shown in Figure 11 (comprising control gear 3 and computing device 4), main storage means 2, comprises input device 5, constitutes the part of output unit 6 is the printer (PR) of the part of floppy disk (FD) or CD-ROM, formation output unit 6 shown in Figure 1.
In the embodiments of the invention, be that the face of expression fluid machinery characteristic is illustrated as the plane, but also can be curved surface, so long as continuous face all can.In addition, this presentation surface is not limited to the paper of product sample etc., also can be the display device of LCD (liquid crystal) etc.
As mentioned above, according to the present invention, as long as the characteristic curve of fluid machinery is documented on the product sample of pump or transducer etc., the user needn't carry out the calculating of trouble, just can simply control between the payoff period of energy-saving effect and initial investment.Therefore, it is mechanical with the demand of transducer with the pump of popularizing recently that transducer is installed to spur convection cell, has to make the energy-conservation effect that comes into the market.
Industrial applicibility
The present invention is the system of the outside useless energy that consumes of control fluid machinery, can be used for using the hot and cold water circulating pump equipment, use the equipment of supply-water pump etc.
Claims (32)
1. the diagnostic system of fluid machinery is characterized in that, has the 1st specialization means, the 2nd specialization means and processing means;
The 1st specialization means are by the predetermined information of input quilt diagnosis fluid machinery, the characteristic specialization that with flow-lift characteristic is the fluid machinery of representative;
The 2nd specialization means, make by the running of diagnosis fluid machinery, the running pressure (lift) of the fluid machinery during by the input running or the measurement result of running flow or consumption electric power or revolution electric current value, by above-mentioned by specialization the characteristic of fluid machinery and the running pressure of the fluid machinery of mensuration or the relevance between the running flow, with the running flow or the running pressure specialization of fluid machinery;
The processing means are calculated running flow when making by the rotation number variation of diagnosis fluid machinery or the variation of turning round pressure or consuming electric power, and are shown this result of calculation.
2. fluid diagnostic system as claimed in claim 1 is characterized in that, above-mentioned the 1st specialization means, and each in following by importing (1)～(11) the item number certificate or some items work,
(1) the suction bore (or label) of fluid machinery
(2) the discharge bore (or label) of fluid machinery
(3) the specified output of the motor of driving fluid machinery
(4) number of poles of the motor of driving fluid machinery
(5) operating frequency of the motor of driving fluid machinery
(6) the label project (flow-lift) of fluid machinery
(7) the machine name of fluid machinery
(8) manufacturing firm's name of fluid machinery
(9) the impeller progression of fluid machinery
(10) the impeller outer diameter size of fluid machinery
(11) test data of fluid machinery (flow-lift, flow-consumption electric power)
3. the diagnostic system of liquid machine as claimed in claim 1 is characterized in that, the characteristic of the fluid machinery by above-mentioned the 1st specialization means after specific, and by the consumption electric power of the fluid machinery in the input real-world operation point, precision is corrected.
4. the diagnostic system of liquid machine as claimed in claim 3, it is characterized in that, the characteristic of the fluid machinery by above-mentioned the 1st specialization means after specific, by input running pressure and/or consumption electric power different with real-world operation point, in the operation point that stops, precision is corrected.
5. the diagnostic system of liquid machine as claimed in claim 1 is characterized in that, by the result of calculation that above-mentioned processing means obtain, by importing the value of actual lift, precision is corrected.
6. the diagnostic system of fluid machinery, it is characterized in that, as the device of saving by the useless energy of diagnostic system control, be provided with the controller of frequency converter as critical piece, by with claim 1 to 5 in each system in combination of putting down in writing use, can be controlled at the outside useless energy that consumes of fluid machinery accurately.
7. the diagnostic system of liquid machine as claimed in claim 6, it is characterized in that, utilize above-mentioned controller that the occurrence frequency of frequency converter is changed, thereby the rotation number of fluid machinery is changed, running pressure when running pressure when opening by the valve in each rotation number of comparison and valve cutout is controlled actual lift or pipe arrangement loss.
8. computer-readable recording medium is characterized in that, it is used to be recorded as the program that makes the computer realization following function, promptly
By input by the predetermined information of diagnosis fluid machinery, the function of characteristic specialization that with flow-lift is the fluid machinery of representative;
Make by the running of diagnosis fluid machinery, the running pressure (lift) of the fluid machinery during by the input running or the measurement result of running flow or consumption electric power or revolution electric current value, by the running pressure of the fluid machinery of the characteristic of the fluid machinery behind the above-mentioned specialization and mensuration or the relevance between the running flow, with the function of the running flow or the running pressure specialization of fluid machinery;
Running flow when calculating makes and changed by the rotation number of diagnosis fluid machinery or running pressure or the variation that consumes electric power, and show the function of this result of calculation.
9. the diagnostic system of fluid machinery is characterized in that, has the 1st specialization means, the 2nd specialization means and processing means;
The 1st specialization means are carried out specialization with the characteristic with flow-lift representative of diagnosis fluid machinery;
The 2nd specialization means will be by the real-world operation point specialization of diagnosis fluid machinery; And
These processing means are calculated the variation of the operation point when making by the rotation number variation of diagnosis fluid machinery, and are shown result of calculation.
10. the diagnostic method of fluid machinery is characterized in that comprising with the next stage:
The diagnosis fluid machinery carry out the stage of specialization with the flow-characteristic of lift representative;
In the stage of the real-world operation point specialization of being diagnosed fluid machinery;
The stage of the variation of the operation point when calculating makes by the rotation number variation of diagnosis fluid machinery; And
The stage that shows result of calculation.
11. the ad hoc approach of fluid machinery characteristic is characterized in that having with the next stage,
Specified output and specified rotation number based on the motor of the bore of fluid machinery and impeller progression, driving fluid machinery, decision comprises the representative point represent lift and represent the fluid machinery of axle power, with respect to represent a flow lift and a power in addition to represent lift and represent the ratio of a power, calculate lift and axle power in each flow thus, and set the stage of the virtual characteristics of fluid machinery; And
The lift when turning round to comprise present situation at least and the determination data of consumption electric power are revised above-mentioned virtual characteristics, and the characteristic of particular fluid machinery and the stage that comprises the operation point of the flow that turns round.
12. the ad hoc approach of fluid machinery characteristic as claimed in claim 11 is characterized in that, as above-mentioned representative point, is the peak efficiency flow of fluid machinery, the lift of calculating with the efficient setting value of fluid machinery and the specified output of motor.
13. the ad hoc approach of fluid machinery characteristic as claimed in claim 11 is characterized in that, as above-mentioned representative point, is the specified output with at least 2 flows of calculating in the standards program that comprises the flow of fluid machinery and lift and lift and motor.
14. the ad hoc approach of fluid machinery characteristic as claimed in claim 12 is characterized in that, lift when turning round with present situation and the flow that consumes electric power and calculate with the setting value of fluid machinery efficient and motor efficiency are revised above-mentioned virtual characteristics.
15. the ad hoc approach of fluid machinery characteristic as claimed in claim 12, it is characterized in that, lift when turning round and the flow that consumes electric power and calculate with the setting value of fluid machinery efficient and motor efficiency with present situation, and the lift in when running cutout and consume electric power, revise above-mentioned virtual characteristics.
16. the ad hoc approach of fluid machinery characteristic as claimed in claim 12, it is characterized in that, lift when turning round and the flow that consumes electric power and calculate with the setting value of fluid machinery efficient and motor efficiency with present situation, and the lift in valve standard-sized sheet when running and consume electric power, revise above-mentioned virtual characteristics.
17. the ad hoc approach of fluid machinery characteristic as claimed in claim 12, it is characterized in that, lift when turning round and the flow that consumes electric power and calculate with the setting value of fluid machinery efficient and motor efficiency with present situation, and the lift when when running cutout and the running of valve standard-sized sheet and consume electric power, revise above-mentioned virtual characteristics.
18. the ad hoc approach of fluid machinery characteristic as claimed in claim 13 is characterized in that, the lift during by above-mentioned virtual characteristics and present situation running, and specific operation point (flow) consumes the above-mentioned virtual characteristics of electric power correction with present situation.
19. the ad hoc approach of fluid machinery characteristic as claimed in claim 13 is characterized in that, the lift during by above-mentioned virtual characteristics and present situation running, specific operation point (flow), the above-mentioned virtual characteristics of consumption electric power correction when consuming electric power and valve standard-sized sheet with present situation.
20. the energy-conservation prior diagnostic system of fluid machinery is characterized in that, has input mechanism, input or setting device, calculating means and processing means;
Flow rate pressure (lift) and the flow-data of consumption electric power and the planning item of equipment side (flow rate pressure) of the band motor fluid machinery when this input mechanism input is exchanged the source power supply driving;
This input or setting device, the pipe impedance (actual lift) when input or setting flow are zero;
These calculating means, the reduction effect of the consumption electric power when calculating with frequency converter reduction fluid machinery rotation number;
These processing means show result of calculation.
21. computer-readable recording medium is characterized in that being used to write down the program that can make the computer realization following function, promptly
Flow rate pressure (lift) and the flow-data of consumption electric power and the planning item of equipment side (flow rate pressure) of the band motor fluid machinery when being exchanged the source power supply driving by input, and the pipe impedance (actual lift) when input or setting flow are zero, the consumption electric power when calculating with frequency converter reduction fluid machinery rotation number is cut down the function of effect;
The function that shows result of calculation.
22. the characteristic display method of fluid machinery is characterized in that, the flow-pressure characteristic because of the different fluid machinery of rotation number, shows with some curves on one side, and shows on above-mentioned and the relevant information of consumption electric power.
23. the characteristic display method of fluid machinery as claimed in claim 22 is characterized in that, in each curvilinear sides that shows above-mentioned fluid-Pressure characteristics, shows and the relevant information of above-mentioned consumption electric power with numeral.
24. the characteristic display method as claim 22 or 23 described fluid machineries is characterized in that, on above-mentioned, also shows the selected scope of the standard under certain rotation number of fluid machinery.
25. the characteristic display method as each described fluid machinery in the claim 22 to 24 is characterized in that, as with consume the relevant information of electric power, on above-mentioned, at least one side in the demonstration electricity charge or the electricity charge reduction.
26. the characteristic display method as each described fluid machinery in the claim 22 to 25 is characterized in that, on above-mentioned, also shows at least one side of price with the price that is used for making rotation number change required machine of fluid machinery.
27. the characteristic display method as each described fluid machinery in the claim 22 to 26 is characterized in that, on above-mentioned, also shows the design conditions of the information relevant with consuming electric power.
28. show the demonstration thing of fluid machinery characteristic, it is characterized in that, adopt the characteristic display method of the fluid machinery of each record in the claim 22 to 27, show the characteristic of fluid machinery.
29. fluid machinery or the machine that the rotation number of fluid machinery is changed, it is characterized in that, on the same one side of sales datas such as product sample, with the flow-pressure characteristic of some curves demonstrations because of the different fluid machinery of rotation number, simultaneously, on the face of above-mentioned sales data, show simultaneously and the relevant information of consumption electric power.
30. the consumption electric power of fluid machinery reads line chart, it is characterized in that, some curves of the flow-pressure characteristic of the fluid machinery when some curves of the flow-pressure characteristic of the fluid machinery during each rotation number of demonstration and demonstration respectively consume electric power are recorded on the same system of coordinates.
31, utilize the system of COMPUTER CALCULATION, mapping, it is characterized in that the flow-pressure characteristic of the band motor fluid machinery when input is exchanged the source power supply driving and the data of flow-consumption electric power obtain as the demonstration thing of claim 28 record or the line chart of claim 30 record.
32. computer-readable recording medium is characterized in that, writes down the calculating that computer realization such as claim 31 are put down in writing, the program of making drawing system.
Applications Claiming Priority (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP108588/1998 | 1998-04-03 | ||
| JP10858898 | 1998-04-03 | ||
| JP178120/1998 | 1998-06-10 | ||
| JP17812098 | 1998-06-10 | ||
| JP279189/1998 | 1998-09-30 | ||
| JP27918998 | 1998-09-30 | ||
| JP31057598 | 1998-10-30 | ||
| JP310575/1998 | 1998-10-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1303467A true CN1303467A (en) | 2001-07-11 |
| CN1128930C CN1128930C (en) | 2003-11-26 |
Family
ID=27469646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99806592A Expired - Fee Related CN1128930C (en) | 1998-04-03 | 1999-03-31 | Diagnosing system for fluid machinery |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1072795A4 (en) |
| JP (1) | JP3343245B2 (en) |
| CN (1) | CN1128930C (en) |
| AU (1) | AU3053799A (en) |
| WO (1) | WO1999051883A1 (en) |
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Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5531907A (en) * | 1978-08-29 | 1980-03-06 | Toshiba Corp | Measuring unit for pump delivery flow |
| JPS5531908A (en) * | 1978-08-29 | 1980-03-06 | Toshiba Corp | Measuring unit for pump delivery flow |
| JPS5823294A (en) * | 1981-08-05 | 1983-02-10 | Ebara Corp | Pumping condition supervisory system |
| JPS5958317A (en) * | 1982-09-28 | 1984-04-04 | Toshiba Corp | Flow rate measuring device |
| JPS59162395A (en) * | 1983-03-08 | 1984-09-13 | Fuji Electric Co Ltd | Device for monitoring state of operation of pump |
| US4518318A (en) * | 1983-07-07 | 1985-05-21 | Grundfos A/S | Pumping sets |
| US4678404A (en) * | 1983-10-28 | 1987-07-07 | Hughes Tool Company | Low volume variable rpm submersible well pump |
| DE3402120A1 (en) * | 1984-01-23 | 1985-07-25 | Rheinhütte vorm. Ludwig Beck GmbH & Co, 6200 Wiesbaden | METHOD AND DEVICE FOR CONTROLLING DIFFERENT OPERATING PARAMETERS FOR PUMPS AND COMPRESSORS |
| JPS61157790A (en) * | 1984-12-28 | 1986-07-17 | Yaskawa Electric Mfg Co Ltd | Control method of pump |
| JPS6466481A (en) * | 1987-09-08 | 1989-03-13 | Kawasaki Heavy Ind Ltd | In-plant test method for high-volume pump |
| DE3824057A1 (en) * | 1988-07-15 | 1990-01-25 | Loewe Pumpenfabrik Gmbh | Method for regulating the operation of pumps |
| JPH03145597A (en) * | 1989-10-30 | 1991-06-20 | Fuji Electric Co Ltd | Method for determining discharge flow rate of rotary pump |
| JPH03168386A (en) * | 1989-11-24 | 1991-07-22 | Fuji Electric Co Ltd | Measuring device of pump discharge flow |
| JP3168386B2 (en) | 1994-11-30 | 2001-05-21 | タキロン株式会社 | Floor material |
| JPH07332280A (en) * | 1994-06-14 | 1995-12-22 | Hitachi Ltd | Operating number control device for pump and control method |
| JP3145597B2 (en) | 1995-02-07 | 2001-03-12 | 京セラ株式会社 | Alumina sintered body and method for producing the same |
| JPH0914180A (en) * | 1995-06-23 | 1997-01-14 | Dengiyoushiya Kikai Seisakusho:Kk | Method and device for detecting delivery flow rate of variable speed pump |
| JP2831949B2 (en) * | 1995-07-24 | 1998-12-02 | 大淀ヂ−ゼル株式会社 | Method and apparatus for diagnosing energy-saving operation of electric air compressor |
-
1999
- 1999-03-31 CN CN99806592A patent/CN1128930C/en not_active Expired - Fee Related
- 1999-03-31 JP JP2000542580A patent/JP3343245B2/en not_active Expired - Fee Related
- 1999-03-31 AU AU30537/99A patent/AU3053799A/en not_active Abandoned
- 1999-03-31 WO PCT/JP1999/001661 patent/WO1999051883A1/en active Application Filing
- 1999-03-31 EP EP99912058A patent/EP1072795A4/en not_active Withdrawn
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Also Published As
| Publication number | Publication date |
|---|---|
| WO1999051883A1 (en) | 1999-10-14 |
| AU3053799A (en) | 1999-10-25 |
| CN1128930C (en) | 2003-11-26 |
| EP1072795A4 (en) | 2006-10-18 |
| EP1072795A1 (en) | 2001-01-31 |
| JP3343245B2 (en) | 2002-11-11 |
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