CN103699080B - A kind of system optimization method of EDI operational energy efficiency and device thereof - Google Patents
A kind of system optimization method of EDI operational energy efficiency and device thereof Download PDFInfo
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Abstract
The invention discloses a kind of system optimization method of EDI operational energy efficiency, comprise step data acquisition; Founding mathematical models is under EDI continuum micromeehanics, sets up EDI and exports the mathematical model that DC voltage and current and EDI membrane stack need between electric current and voltage in real time, sets up EDI and exports mathematical model between DC voltage and current and the instantaneous power consumption of EDI in real time; Analytical calculation is the mathematical model to setting up, different flow of inlet water and different influent quality, adopt the condition of different EDI fairing output voltage electric currents under carry out analytical calculation, draw the water power consumption predicted value per ton that EDI is corresponding at different conditions; Export with execution be at EDI under current flow of inlet water and influent quality condition, calculate the EDI fairing output voltage electric current predicted and can reach corresponding to minimum water power consumption value per ton, show as recommendation output voltage electric current, instruct operations staff to increase or reduce EDI current output voltage electric current, or adjusting EDI fairing output voltage electric current by auto-programming.
Description
Technical field
The system optimization method of EDI operational energy efficiency and device thereof, belong to electrician, water treatment environmental technology field.
Background technology
Along with the propelling of economic development and industrialization paces, require more and more higher to the production equipment of pure water.The appearance of EDI technology is the progress of the once leap property of water technology, and increasing industry brings into use EDI technique device to carry out pure water preparation.EDI (electric desalination) is UF membrane deep desalting technology electrodialytic technique and ion exchange technique merged mutually dexterously, without the need to the chemical regeneration of soda acid, can produce high-quality pure water.System, mainly under the effect of DC electric field, by dielectric ion generation displacement in the water of dividing plate, utilizes exchange membrane (membrane stack) to the selection of ion through the water technology be used for a kind of science that water quality is purified.It is main by electric energy that EDI water treatment runs regeneration, and the principal element affecting EDI water treatment power consumption has: the impact of (1) EDI water inlet conductivity.Under identical operating current, along with the increase EDI of former water conductivity reduces the clearance of weak electrolyte, going out electrical conductivity of water also increases.If former water conductivity is low, the content of ion is also low, and low concentration ion makes electromotive force gradient that the surface of resin and film in light room is formed also large, the dissociation degree of water is caused to strengthen, limiting current increases, the quantity of H+ and OH-produced is more, makes the regeneration effect of the anion and cation exchange resin be filled in light room good.(2) impact of EDI operating voltage-electric current.Working current increases, and produces water water quality and constantly improves.If but electric current is increased again after increasing to peak, because water power is too much from H+ and the OH-ionic weight produced, except for except regenerating resin, a large amount of ion more than needed serves as current-carrying ionic conduction, simultaneously owing to there is accumulation and blocking in a large amount of current-carrying ionic transfer process, even antidiffusion occurs, result makes product water deteriorating water quality, and the efficiency of electric energy and desalination is lower.Usually only have the DC current of 10-20% for mobile salt ion, other electric current is all used to ionizing water.(3) impact of hardness.If the remaining hardness of intaking in EDI is too high, can cause the film surface scale of condensed water passage, concentrated stream amount declines, and produces water resistance rate and declines; Water water quality is produced in impact, and time serious, the meeting dense water of plug assembly and pole water flow passage, cause assembly to damage because of inner heat.Therefore, under the prerequisite ensureing EDI stable effluent quality, make power consumption optimization, make water treatment power consumption per ton be down to minimum, realize energy-saving and emission-reduction, become the problem of modern industry PRODUCTION TRAITS.
Summary of the invention
The object of the invention is to overcome deficiency of the prior art, there is provided a kind of can quantitative relationship between the instantaneous power consumption of real-time calculation and analysis EDI and influence factor thereof, operations staff can be instructed to adjust the output voltage electric current of EDI device to the most rational numerical value, or automatically regulate the output current of EDI to most economical rational numerical value, EDI tri-aspect technical failures and system energy consumption relationship analysis can be carried out comprehensively, effectively can save system optimization method and the device thereof of the operational energy efficiency of power consumption EDI.
Object of the present invention is achieved by following technical proposals:
Described method comprises step data acquisition, founding mathematical models, analytical calculation, output and execution, and concrete steps are as follows:
Step one, described data acquisition are acquisition EDI flow of inlet water, influent quality parameter comprises conductance and hardness, effluent quality parameter comprise conductance and silicon, EDI fairing output voltage electric current, the instantaneous power consumption of EDI;
Step 2, described founding mathematical models utilize the parameter obtained in step one, under EDI continuum micromeehanics, set up EDI and export the mathematical model that DC voltage and current and EDI membrane stack need between electric current and voltage in real time, set up EDI and export mathematical model between DC voltage and current and the instantaneous power consumption of EDI in real time;
Step 3, described analytical calculation are the mathematical models to setting up in step 2, different flow of inlet water and different influent quality, adopt the condition of different EDI fairing output voltage electric currents under carry out analytical calculation, draw the water power consumption predicted value per ton that EDI is corresponding at different conditions;
Step 4, described output and execution be at EDI under current flow of inlet water and influent quality condition, calculate the EDI fairing output voltage electric current predicted and can reach corresponding to minimum water power consumption value per ton, show as recommendation output voltage electric current, instruct operations staff to increase or reduce EDI current output voltage electric current, or adjusting EDI fairing output voltage electric current by auto-programming;
After described step 3 analytical calculation, power consumption determining program is set, in power consumption determining program, arrange in advance the instantaneous power consumption of EDI, water treatment power consumption per ton " prompting value " and " alarming value ", at EDI run duration, if when the result of step analytical calculation is higher than " prompting value " or " alarming value ", then tell that operations staff needs to revise method of operating with prompting or type of alarm.
Arrange breakdown judge program after described step 3 analytical calculation, in breakdown judge program, under arranging normal computing mode in advance, the mathematical model between EDI fairing output voltage electric current and the instantaneous power consumption of EDI is as reference model; During EDI runs water processed, using between the EDI fairing output voltage electric current in the result of step analytical calculation and the instantaneous power consumption of EDI also founding mathematical models as real-time model, real-time model and reference model are compared, if the relation curve difference that above-mentioned two mathematical models are formed under EDI flow of inlet water and the identical condition of water quality exceedes setting value, remind EDI that state of the art goes wrong in the mode of reporting to the police.
For a device for the system optimization method of EDI operational energy efficiency, comprise EDI rectification adjuster, described EDI rectification adjuster is connected to central processing unit and storage unit by bus; Described central processing unit and storage element connection data collecting device, output device, power supply unit; Described data acquisition equipment comprises EDI power consumption measurement mechanism, EDI feed water flow gauge, EDI water inlet conductimetric analysis instrument, EDI water inlet hardness analysis instrument, EDI water outlet fresh-water flow, EDI water outlet conductimetric analysis instrument, EDI water outlet silicon meter, EDI rectifier power source output voltage electrical measuring meter, EDI rectifier power source output current electrical measuring meter; Described central processing unit and storage element are to the instantaneous power consumption of the EDI collected, EDI flow of inlet water and influent quality, EDI rectifier power source output voltage electric current, EDI water outlet fresh-water flow and the process of effluent quality data analysis, and by result with data and or graph mode show over the display, be used to guide EDI run.
Described central processing unit and storage element connect can remind or warn voice alerting unit and the acousto-optic warning unit that operations staff carries out optimization EDI rectifier output voltage current practice.
Arrange EDI direct supply rectification adjuster in described output device, rectification adjuster is connected with main frame regulator.
Described central processing unit and storage element connect can realize interactive keyboard.
Compared with original technology, the present invention has the following advantages: keep a firm hand on the energy-conservation key problem of EDI water treatment system, with strong points, multiple functional, intelligence degree is high, rational in infrastructure, energy-saving effect is obvious.
Accompanying drawing explanation
Fig. 1 is the structural schematic block diagram of apparatus of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described:
Embodiment of the method 1:
Data acquisition: obtain the instantaneous power consumption of EDI system, EDI flow of inlet water, EDI influent quality, EDI water outlet fresh-water flow, EDI effluent quality, EDI rectifier power source output voltage electric current.
1, founding mathematical models: under the condition of EDI system continuum micromeehanics, at one time on axle, set up EDI and export the mathematical model that DC voltage and current and EDI membrane stack need between electric current and voltage in real time, set up EDI and export mathematical model between DC voltage and current and the instantaneous power consumption of EDI in real time.
2, analytical calculation: be the mathematical model to setting up, different flow of inlet water and different influent quality, adopt the condition of different EDI fairing output voltage electric currents under carry out analytical calculation, draw the water power consumption predicted value per ton that EDI is corresponding at different conditions.
3, export and perform: EDI is under current flow of inlet water and influent quality condition, calculate the EDI fairing output voltage electric current predicted and can reach corresponding to minimum water power consumption value per ton, show as recommendation output voltage electric current, instruct operations staff to increase or reduce EDI current output voltage electric current, or adjusting EDI fairing output voltage electric current by auto-programming.
Embodiment of the method 2:
On the basis of embodiment of the method 1, power consumption determining program is set after step analytical calculation, in power consumption determining program, arrange in advance the instantaneous power consumption of EDI, water treatment power consumption per ton " prompting value " and " alarming value ", at EDI run duration, if when the result of step analytical calculation is higher than " prompting value " or " alarming value ", then tell that operations staff needs to revise method of operating with prompting or type of alarm.
Embodiment of the method 3:
On the basis of embodiment of the method 1, breakdown judge program is set after analytical calculation, in breakdown judge program, under arranging normal computing mode in advance, the mathematical model between EDI fairing output voltage electric current and the instantaneous power consumption of EDI system is as reference model; During EDI runs water processed, using between the EDI fairing output voltage electric current in the result of step analytical calculation and the instantaneous power consumption of EDI also founding mathematical models as real-time model, real-time model and reference model are compared, if the relation curve difference that above-mentioned two mathematical models are formed under EDI flow of inlet water and the identical condition of water quality exceedes setting value, remind EDI that state of the art goes wrong in the mode of reporting to the police.
The embodiment of device:
As shown in Figure 1, device of the present invention, the core of main frame is central processing unit and storage element, wherein installs special software: central processing unit and storage element connection signal input media, topworks, man-machine conversation unit and prompting and warning device.
1, central processing unit adopts 32 ARM main control chip LPC1752, LPC1752 chip fast operation, and cost performance is high, and provides abundant conventional Peripheral Interface, and energy is system and device using function very well; Storage element comprises EEPROM data-carrier store, primarily of a slice CAT24C256 composition, is used for the historical data of storage control system, store status data and process warning message etc.
2, signal input apparatus;
(1), EDI power consumption measurement mechanism, for measuring the instantaneous power consumption data of EDI.Adopt ripe prior art.
(2), flow of inlet water, for measuring EDI flow of inlet water.Adopt ripe prior art.
(3), water inlet conductimetric analysis instrument, to intake conductance for measuring EDI.Adopt ripe prior art.
(4), water inlet hardness analysis instrument, to intake hardness for measuring EDI.Adopt ripe prior art.
(5), water outlet conductimetric analysis instrument, for measuring EDI water outlet conductance.Adopt ripe prior art.
(6), water outlet silicon meter, for measuring EDI water outlet silicon.Adopt ripe prior art.
(7), water outlet plain water flow meter, for measuring EDI water outlet fresh-water flow.Adopt ripe prior art.
(8), rectifier power source output voltage electric pilot, for measure EDI rectification module export DC voltage.Adopt ripe prior art.
(9), rectifier power source output current electric pilot, for measure EDI rectification module export DC current.Adopt ripe prior art.
The data that above-mentioned 9 input medias obtain, all be delivered in the special software of central processing controller and storage element and carry out real-time analysis, calculate, compare, point out EDI Problems existing in operation water process processed, instruct operations staff to carry out EDI system and device Appropriate application electric energy water, and be furnished with voice message or sound and light alarm is pointed out.
3, topworks is bus controller, connects rectification adjuster, final regulating and controlling EDI rectifier power source, automatically regulates EDI rectifier power source output voltage, electric current; Also can export by manual adjustments EDI rectifier power source, exported by manual adjustment EDI rectifier power source.
4, man-machine conversation unit: keyboard and display.Adopt ripe prior art.
5, prompting and warning device are: can indicate or warn voice alerting unit and acousto-optic warning unit that operations staff is optimized operation.Adopt ripe prior art.
Principle of work:
(1) DATA REASONING and transmission
1, EDI power consumption measurement mechanism obtains the instantaneous power consumption of EDI system, often overlaps EDI device and joins a set of.
2, flow of inlet water measurement mechanism obtains EDI system flow of inlet water data, is installed on into water mother pipe, often overlaps EDI device and joins one.
3, conductimetric analysis instrument apparatus of intaking obtains EDI system water inlet conductance data, often overlaps EDI device and joins one.
4, hardness analysis instrument apparatus of intaking obtains EDI system water inlet hardness data, often overlaps EDI device and joins one.
5, water outlet conductimetric analysis instrument apparatus obtains EDI system water outlet conductance data, often overlaps EDI device and joins one.
6, water outlet silicon meter device obtains EDI system water outlet silicon data, often overlaps EDI device and joins one.
7, water outlet fresh-water flow measuring device obtains EDI system water outlet fresh-water flow data, often overlaps EDI device and joins one.
8, rectifier power source output voltage electric pilot obtains EDI rectifier power source output voltage data, and every platform EDI rectifier power source joins one.
9, rectifier power source output current electric pilot obtains EDI rectifier power source output current data, and every platform EDI rectifier power source joins one.
Convert above-mentioned data to digital signal, be passed to central processing unit and storage element preservation, analytical calculation and process by RS485 bus.Time interval of data record is adjustable between 10-300 second.
(2) operating mode is arranged
By keyboard and display, realize man-machine conversation, arrange the EDI process water yield, EDI device can simply be divided into many water yields, the normal water yield and low wash water three kinds of situations according to the process water yield, selects corresponding curve with this.All setting adopts known method to process.
(3) for the data analysis of technical energy saving
EDI technology status is judged by EDI fairing output voltage electric current and the instantaneous power consumption relation curve of EDI system.By this method can to the output voltage electric current of EDI, effluent qualities etc. tentatively judge, when EDI is in good operating mode, the mathematical model (curve) drawing EDI device output voltage, electric current and instantaneous power consumption relation is set up by measurement data, using as with reference to curve, the curve often overlapping EDI device has difference, in the later stage is run, regularly carries out modeling analysis to the EDI fairing output voltage electric current of surveying and instantaneous power consumption data.Analytical approach is as follows:
1) if the curve that site-test analysis obtains is starkly lower than control curve, main cause is that EDI influent quality is poor, and EDI rectification exports efficiency and reduces
2) if analyze the curve that obtains apparently higher than control curve, main cause is that EDI influent quality is better, and water inlet treatment capacity is less than normal
Fault can be found from the exception of power consumption data by said method, point out fault direction in time, instruct operations staff to carry out conditional repair, repair operating mode, reduce the uneconomical consumption of power consumption.Actual motion EDI system power consumption ideal data is: water treatment power consumption≤0.1KWh per ton.Select when EDI system cloud gray model the EDI rectifying power supply apparatus that Energy Efficiency Ratio is higher, also have obvious effect to the efficiency improving EDI system and device.
(4) data display and application
1, data display
This device has power-save operation, EDI rectifier power source mates, technical failure analyzes three interfaces.
The measurement data such as EDI rectifier output voltage electric current, the instantaneous power consumption of EDI system, EDI flow of inlet water, influent quality, water outlet fresh-water flow, effluent quality that power-save operation interface display is measured, and EDI system water power consumption per ton etc. calculates data.Display EDI rectifier power source recommends output voltage, electric current, recommends EDI rectifier power source output voltage electric current to be the economic output voltage electric current of EDI rectifier power source under current inflow condition.
EDI rectifier power source mates, as above described in joint:
EDI equipment failure.
2, the application of related data
The selection of economic EDI rectifier power source output voltage electric current, the data selection economic EDI rectifier power source output voltage electric current according to calculating runs EDI system, can reach the object of saving power consumption.
In sum, described method comprises carries out analyzing and processing and display by design specialized software to EDI power consumption and related data, be used to guide operations staff and carry out the output setting that economic EDI system reasonable employment electric energy carries out electric desalination and EDI system rectifier power source, situation of change in EDI operational process can be judged, the technical failure affecting EDI power consumption is analyzed, thus system solves the subject matter in EDI energy-saving run, has obtained very significant effect in actual use; Described device comprises data acquisition equipment, central processing unit and storage unit thereof, man-machine dialogue equipment, output device and power supply unit etc., described data acquisition equipment can carry out automatically measuring comprehensively and accurately and gathering, for correlation analysis provides objective basis to the data of EDI system cloud gray model power consumption and various influence factor.
Claims (7)
1. a system optimization method for EDI operational energy efficiency, is characterized in that: comprise step data acquisition, founding mathematical models, analytical calculation, output and execution, concrete steps are as follows:
Step one, described data acquisition are acquisition EDI flow of inlet water, influent quality parameter comprises conductance and hardness, effluent quality parameter comprise conductance and silicon, EDI fairing output voltage electric current, the instantaneous power consumption of EDI;
Step 2, described founding mathematical models utilize the parameter obtained in step one, under EDI continuum micromeehanics, set up EDI and export the mathematical model that DC voltage and current and EDI membrane stack need between electric current and voltage in real time, set up EDI and export mathematical model between DC voltage and current and the instantaneous power consumption of EDI in real time;
Step 3, described analytical calculation are the mathematical models to setting up in step 2, different flow of inlet water and different influent quality, adopt the condition of different EDI fairing output voltage electric currents under carry out analytical calculation, draw the water power consumption predicted value per ton that EDI is corresponding at different conditions;
Step 4, described output and execution be at EDI under current flow of inlet water and influent quality condition, calculate the EDI fairing output voltage electric current predicted and can reach corresponding to minimum water power consumption value per ton, show as recommendation output voltage electric current, instruct operations staff to increase or reduce EDI current output voltage electric current, or adjusting EDI fairing output voltage electric current by auto-programming.
2. the system optimization method of EDI operational energy efficiency according to claim 1, it is characterized in that: after described step 3 analytical calculation, power consumption determining program is set, in power consumption determining program, arrange in advance the instantaneous power consumption of EDI, water treatment power consumption per ton " prompting value " and " alarming value ", at EDI run duration, if when the result of step analytical calculation is higher than " prompting value " or " alarming value ", then tell that operations staff needs to revise method of operating with prompting or type of alarm.
3. the system optimization method of EDI operational energy efficiency according to claim 1, it is characterized in that: after described step 3 analytical calculation, breakdown judge program is set, in breakdown judge program, under arranging normal computing mode in advance, the mathematical model between EDI fairing output voltage electric current and the instantaneous power consumption of EDI is as reference model; During EDI runs water processed, using between the EDI fairing output voltage electric current in the result of analytical calculation in step 3 and the instantaneous power consumption of EDI also founding mathematical models as real-time model, real-time model and reference model are compared, if the relation curve difference that above-mentioned two mathematical models are formed under EDI flow of inlet water and the identical condition of water quality exceedes setting value, remind EDI that state of the art goes wrong in the mode of reporting to the police.
4. for a device for the system optimization method of EDI operational energy efficiency, it is characterized in that: comprise EDI rectification adjuster, described EDI rectification adjuster is connected to central processing unit and storage unit by bus; Described central processing unit and storage element connection data collecting device, output device, power supply unit; Described data acquisition equipment comprises EDI power consumption measurement mechanism, EDI feed water flow gauge, EDI water inlet conductimetric analysis instrument, EDI water inlet hardness analysis instrument, EDI water outlet fresh-water flow, EDI water outlet conductimetric analysis instrument, EDI water outlet silicon meter, EDI rectifier power source output voltage electrical measuring meter, EDI rectifier power source output current electrical measuring meter; Described central processing unit and storage element are to the instantaneous power consumption of the EDI collected, EDI flow of inlet water and influent quality, EDI rectifier power source output voltage electric current, EDI water outlet fresh-water flow and the process of effluent quality data analysis, and by result with data and or graph mode show over the display, be used to guide EDI run.
5. the device of the system optimization method for EDI operational energy efficiency according to claim 4, is characterized in that: voice alerting unit and the acousto-optic warning unit that operations staff carries out the output function of optimization EDI rectifier power source can be pointed out or warn to described central processing unit and storage element.
6. the device of the system optimization method for EDI operational energy efficiency according to claim 4, is characterized in that: arrange bus controller in described output device, bus controller is connected with rectification adjuster.
7. the device of the system optimization method for EDI operational energy efficiency according to claim 4, is characterized in that: described central processing unit and storage element connect can realize interactive keyboard.
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| CN109507957B (en) * | 2017-09-15 | 2022-04-01 | 进金生实业股份有限公司 | Cloud intelligent power-saving system for water treatment industry |
| CN110570912A (en) * | 2019-08-15 | 2019-12-13 | 北京津工海水科技有限公司 | Electric-drive ionic membrane-pressure reverse osmosis membrane optimization method and system |
| CN113484057A (en) * | 2021-07-20 | 2021-10-08 | 杭州塞博环境科技有限公司 | Method, equipment and system for calculating and evaluating energy efficiency of water treatment facility |
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