CN102808759B - Display control system of water pump and pump group - Google Patents
Display control system of water pump and pump group Download PDFInfo
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- CN102808759B CN102808759B CN201210281677.8A CN201210281677A CN102808759B CN 102808759 B CN102808759 B CN 102808759B CN 201210281677 A CN201210281677 A CN 201210281677A CN 102808759 B CN102808759 B CN 102808759B
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- water pump
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- 239000011901 water Substances 0.000 title claims abstract description 109
- 238000006243 chemical reactions Methods 0.000 claims description 15
- 230000001276 controlling effects Effects 0.000 claims description 7
- 238000000034 methods Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 2
- 238000004364 calculation methods Methods 0.000 description 1
Abstract
Description
Technical field
The present invention relates to a kind of Monitoring and Controlling of water pump operation.Particularly relate to a kind of Online Monitoring Control and the water pump of demonstration in real time and the display control program of pump group that can realize pump characteristics parameter.
Background technique
The monitoring of current water pump operation is just taking safe operation as main purpose, and monitoring parameter only includes running current, voltage, frequency and inlet outlet pressure differential conventionally, and above-mentioned parameter obtains by the on-the-spot reading mode of ammeter, voltmeter and pressure gauge respectively.The parameter of reflection water pump actual motion state mainly comprises flow, lift and power, flow is mainly tested and is obtained by ultrasonic flowmeter, but flowmeter price is more expensive, test method is loaded down with trivial details, be difficult for realizing the Real-Time Monitoring of pump capacity, has significant limitation; Lift obtains after doing difference by pressure gauge test value before and after water pump, causes the reading of lift to have larger error because pressure gauge precision is not high; The test data of power utilization volometer and correlation theory formula solve, and cause the calculated data of power to have larger error because voltage and current meter accuracy is not high.In sum, existing monitored data cannot accurately reflect the running state of water pump.
If do not have comparatively accurately, comprehensively, real-time service data supports, the variable-flow of water pump regulates will become very difficult, causes most of variable flow system to move under flow setting type operating mode, and then causes water pump transmission & distribution energy consumption high.The main cause that causes current condition be shortage science, Online Monitoring Control and the real-time display method of pump characteristics parameter.
Summary of the invention
Technical problem to be solved by this invention is, provide one to utilize pump characteristic, pressure sensor monitoring data and corresponding theoretical water pump duty and lift, and calculate the data correction computational methods of pump efficiency and pipe impedance, and realize the water pump of Real-Time Monitoring, demonstration, storage and control and the display control program of pump group according to flow, lift, voltage transducer monitored data, current sensor monitored data.
The technical solution adopted in the present invention is: the display control program of a kind of water pump and pump group, comprise: data processing unit, the sensor group being connected with control unit respectively, touch control display screen, with data bus interface and the pump variable frequency device of upper machine communication.
Described sensor group include be arranged on exit of pump exit of pump pressure transducer, be arranged on pump entrance pump entrance pressure transducer, be arranged on the water pump operation current sensor on water pump driving current and be arranged on the water pump operation voltage transducer on water pump driving voltage.
In described touch control display screen, be provided be connected with the signal input part of data processing unit respectively for controlling the start and stop of water pump and the manual control module of operation frequency, data input module, the test data for real-time demonstration sensor group being connected with data processing unit signal output part respectively, water lift of pump, flow, the water pump status parameter display modular of power efficiency, the pipe network status parameter display modular of real-time demonstration pipe impedance, according to water pump operation voltage, electric current and efficiency are determined the water pump alarm module whether water pump moves in predefined safety zone and are realized parameters of pump and the data storage module of pipeline parameter storage.
The data that described data input module is inputted comprise: between pump characteristic that water pump frequency, producer provide, pressure-measuring point, coefficient of partial resistance and water pump are imported and exported the discrepancy in elevation between pressure-measuring point; And according to the status parameter of the flow of the reverse interpretation water pump of the test data of pump characteristic and sensor, power, efficiency.
Described data processing unit includes sensing data receiving module, the data conversion module being connected with described sensing data receiving module and the data correction puocessing module being connected with described data conversion module, wherein, the monitor signal of described sensing data receiving module connecting sensor group receiving sensor group, described data conversion module connects manual control module and the data input module in touch control display screen by data/address bus, for receiving the input parameter of touch control display screen, the output of described data conversion module connects pump variable frequency device for control signal is passed to pump variable frequency device by data/address bus, described data correction puocessing module connects respectively the water pump status parameter display modular in touch control display screen by data/address bus, pipe network status parameter display modular and water pump alarm module, also in touch control display screen, realize the storage of data simultaneously.
The display control program of water pump of the present invention and pump group, has following beneficial effect:
(1) testing precision is high.Testing apparatus is the sensor that precision is higher, and sensor carries out the same time to the data of each measuring point and collects, and compares hand data collection, has greatly improved the validity of survey data;
(2) cost is low, without expensive flow measurement is installed, reduces system cost;
(3) automaticity is high.By the algorithm of implanting in advance, realize to image data fast, focus on;
(4) real-time Presentation Function, friendly interface.Display menu hurdle on touch screen, shows each roadability parameter of pump group and pipe network in the mode of button;
(5) control conveniently, before pump group is controlled, pre-enter between pump characteristic equation, pressure-measuring point these special parameters of relative relief between coefficient of partial resistance, pressure-measuring point; In control procedure, only need the operation frequency of input water pump just can realize the control to water pump operation parameter.This means in working control and only have frequency and these two of start and stop to control parameter, controlling method is simplified greatly;
(6) parameter display comprehensively, intuitively.Presentation Function on touch screen is divided into 4 parts: parameter input field, water pump operation parameter hurdle, system-head curve parameter hurdle and warning hurdle, this 4 part is switched by clicking menu button.
Brief description of the drawings
Fig. 1 is that entirety of the present invention forms block diagram;
Fig. 2 is the formation of sensor group;
Fig. 3 is the formation block diagram of touch control display screen;
Fig. 4 is that data processing unit forms block diagram.
1: sensor group 2: data processing unit
3: touch control display screen 4: for the data bus interface module of telecommunication
5: pump variable frequency device 1-1: exit of pump pressure transducer
1-2: pump entrance pressure transducer 1-3: water pump operation current sensor
1-4: water pump operation voltage transducer 2-1: sensing data receiving module
2-2: data conversion module 2-3: data correction puocessing module
3-1: manual control module 3-2: data input module;
3-3: water pump status parameter display modular 3-4: pipe network status parameter display modular
3-5: water pump alarm module 3-6: data memory module
Embodiment
Below in conjunction with embodiment and accompanying drawing, the display control program of water pump of the present invention and pump group is described in detail.
As shown in Figure 1, the display control program of water pump of the present invention and pump group, comprising: data processing unit 2, the sensor group 1 being connected with data processing unit 2 respectively, touch control display screen 3, with upper machine communication EBI 4 and pump variable frequency device 5.
As shown in Figure 2, sensor group 1 of the present invention include be arranged on exit of pump exit of pump pressure transducer 1-1, be arranged on pump entrance pump entrance pressure transducer 1-2, be arranged on the water pump operation current sensor 1-3 on water pump driving current and be arranged on the water pump operation voltage transducer 1-4 on water pump driving voltage.Data processing module obtains sensor real time data by analog amount, the real-time touch screen display that is presented at after processing.
As shown in Figure 3, the control display device that described touch control display screen 3 is scene of the present invention, in described touch control display screen 3, be provided be connected with data processing unit 2 signal input parts for controlling the start and stop of water pump and the manual control module 3-1 of operation frequency, data input module 3-2, (the pressure before pump of the test data for real-time demonstration sensor group 1 being connected with data processing unit 2 signal output parts, pressure after pump, voltage, electric current), water lift of pump, flow, the water pump status parameter display modular 3-3 of power efficiency, the pipe network status parameter display modular 3-4 of real-time demonstration pipe impedance, according to water pump operation voltage, electric current and efficiency are determined the water pump alarm module 3-5 whether water pump moves in predefined safety zone and are realized parameters of pump and the data storage module 3-6 of pipeline parameter storage.
Described manual control module 3-1 is mainly used to control the start and stop of water pump and changes operation frequency.The control signal of start and stop and frequency changes analogue signal into through data processing unit 2, is then transferred to frequency variator and is controlled the running state of water pump by data/address bus.
Described data input module 3-2 is the data of inputting by touch screen, and the data of inputting comprise: the discrepancy in elevation between pump characteristic that water pump frequency, producer provide, pressure-measuring point between coefficient of partial resistance and pressure-measuring point.These data are bases that the data processing unit 2 of water pump or pump group carries out data processing.
Described upper machine communication EBI 4 major functions are that upper-position unit is supported teledata alternately and telecontrol by data/address bus.
Described data processing unit 2 is the mutual conversions that realize between the analogue signal of digital signal, and then realizes the output of control signal and the input of test processes signal; The monitor signal of sensing data receiving module receiving sensor, then monitor signal is transferred to data processing unit and processes calculating, last above-mentioned monitored data, processing data are all inputted data storage module 3-6 in touch screen and realize the storage of data together with inputting in advance data by data/address bus, or by the storage of importing upper-position unit into and realize data with the data bus interface 4 of upper machine communication.
As shown in Figure 4, described data processing unit 2 specifically includes sensing data receiving module 2-1, the data conversion module 2-2 being connected with described sensing data receiving module 2-1 and the data correction puocessing module 2-3 being connected with described data conversion module 2-2, wherein, described sensing data receiving module 2-1 connecting sensor group 1, the monitor signal of receiving sensor group 1, described data conversion module 2-2 connects manual control module 3-1 and the data input module 3-2 in touch control display screen 3 by data/address bus, for receiving the input parameter of touch control display screen 3, the output of described data conversion module 2-2 connects pump variable frequency device 5 for control signal being passed to pump variable frequency device 5 by data/address bus, described data correction puocessing module 2-3 connects respectively the water pump status parameter display modular 3-3 in touch control display screen 3 by data/address bus, pipe network status parameter display modular 3-4, water pump alarm module 3-5 and data storage module 3-6.
The display control program of water pump of the present invention and pump group, before the Operational Limits of pump group being controlled and shown, need to pre-enter the coefficient of partial resistance between the discrepancy in elevation and the pressure-measuring point between water pump curve, pressure-measuring point by touch control display screen 3.In working control procedure for displaying, first input the operation frequency of water pump by touch control display screen 3, this parameter changes the analogue signal of frequency variator 5 after by data processing unit 2 into, thereby realizes the control to pump capacity; After pump variable frequency, sensor group 1 passes to data processing unit 2 by pressure, electric current and voltage signal and carries out corrected Calculation, obtain the Operational Limits under water pump and pipe network actual conditions, comprise water lift of pump, flow, power, efficiency and pipe impedance, and by demonstration real-time to above-mentioned test data, calculated data be stored in touch control display screen 3.
Testing apparatus in the display control program of water pump of the present invention and pump group is sensor, and testing precision is higher; In testing process, realize the synchro measure to each test data, data test precision is guaranteed; The real-time demonstration of test data and processing data can raising system move the validity of controlling; For regulating the effect of front and back, water pump in system provides Data support.
The parameter input field of the display control program of water pump of the present invention and pump group comprises:
Water pump H-Q curve: the data that producer is provided are carried out regression analysis, obtain quadratic curve equation, is then input into control system each coefficient in equation;
Water pump η-Q curve: the data that producer is provided are carried out regression analysis, obtain quadratic curve equation, is then input into control system each coefficient in equation;
Water pump N-Q curve: the data that producer is provided are carried out regression analysis, obtain quadratic curve equation, is then input into control system each coefficient in equation;
Coefficient of partial resistance between pressure-measuring point: the data that provide taking producer are foundation, is input into control system by the coefficient of partial resistance sum of all parts between measuring point;
Relative relief between pressure-measuring point: the discrepancy in elevation before and after measure field water pump between pressure transducer, is then input into control system by these data;
Water pump frequency: this parameter, for controlling parameter, in the time that system needs variable-flow, changes the numerical value of incoming frequency.
The water pump operation parameter hurdle of the display control program of water pump of the present invention and pump group, is directly the various performance parameters of water pump to be shown intuitively, and the parameter of displaying has:
Pump head: the poor of delivery side of pump end face and admission section unit weight total energy that fluid has of flowing through, reaction be the pressure-drop in pipeline in system;
Pump capacity: whether the flow in direct reacting system meets design and the regulation and control requirement of system;
Running current: directly kinetic current, whether in safe operation interval, prevents from burning out unit;
Working voltage: whether the working voltage that directly reacts water pump is stable;
Pump power: the operation energy consumption that directly reacts water pump;
Pump efficiency: directly reaction water the way;
Above-mentioned parameter has reflected the running state parameter of water pump completely, the adjusting that above-mentioned data are system and the optimization data supporting that provides the foundation.
The system-head curve parameter hurdle of the display control program of water pump of the present invention and pump group:
Pipe impedance: this parametric synthesis has reflected on-way resistance and the local resistance situation on pipeline.
The warning hurdle of the display control program of water pump of the present invention and pump group:
Show and exceed parameter (electric current, voltage, the pump efficiency) title of safe operation scope and the actual operating data of parameter, the Main Function of above-mentioned parameter is to provide Data support for trouble analysis in the future.
Claims (4)
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| CN201210281677.8A CN102808759B (en) | 2012-08-08 | 2012-08-08 | Display control system of water pump and pump group |
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| CN201210281677.8A CN102808759B (en) | 2012-08-08 | 2012-08-08 | Display control system of water pump and pump group |
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| CN102808759B true CN102808759B (en) | 2014-10-15 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103352790B (en) * | 2013-07-04 | 2016-12-07 | 绍兴市碧湖环保科技有限公司 | Reaction type waterwheel view generating set |
| CN104460627B (en) * | 2014-12-10 | 2017-03-08 | 国家电网公司 | A kind of power station turbine-generator units display ＆ control system and its control method |
| CN105422430B (en) * | 2015-11-25 | 2018-04-06 | 湖南耐普泵业股份有限公司 | Diesel engine water pump control system and its control method |
| CN105952659A (en) * | 2016-05-09 | 2016-09-21 | 湖南耐普泵业股份有限公司 | Intelligent permanent magnet electric pump unit and control method thereof |
| CN106089675B (en) * | 2016-08-01 | 2018-08-24 | 南京腾图节能科技有限公司 | A kind of portable pump energy consumption assessment instrument |
| CN107327398A (en) * | 2017-08-30 | 2017-11-07 | 安徽天达网络科技有限公司 | A kind of Computer Automatic Test System for pump performance |
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| CN201383104Y (en) * | 2009-04-17 | 2010-01-13 | 孙青格 | Digital multi-functional special-purpose fire water supply device controller |
| CN201972194U (en) * | 2010-12-15 | 2011-09-14 | 广州星辰热能科技有限公司 | Intelligent frequency-variable constant-pressure water supply system |
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