CN102374663A - Method for detecting water heater scaling and making alarming indication - Google Patents
Method for detecting water heater scaling and making alarming indication Download PDFInfo
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- CN102374663A CN102374663A CN2010102631128A CN201010263112A CN102374663A CN 102374663 A CN102374663 A CN 102374663A CN 2010102631128 A CN2010102631128 A CN 2010102631128A CN 201010263112 A CN201010263112 A CN 201010263112A CN 102374663 A CN102374663 A CN 102374663A
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Abstract
The invention relates to a method for detecting water heater scaling and making alarming indication. In the method, the water quality of water used in a water heater is judged by detecting the water quality, the time periods of scaling under different water quality and the scaling degree of the corresponding period can be analyzed according to a judging result, and a user can be timely prompted. Therefore, the user can learn and master the current service condition and the scaling degree of the water heater, and judges whether to clean an inner container and remove scales in real time. According to the invention, not only is the service life of the water heater greatly prolonged, but also the use safety is improved for the user; and the user can timely clean the inner container to remove the scale so as to effectively prevent potential safety hazards on water utilization due to the polluted water in the inner container.
Description
Technical field
The present invention relates to a kind of method that detects water heater scaling and report to the police and indicate.
Background technology
For electric heater, fouling is to influence water heater service life and user's important hidden danger safe in utilization always.How effectively to solve the problem that fouling brings, become the important problem directly perceived of electric heater development.In electric heater, when general water temperature is heated to 40 ℃, just begin to have fouling tendency to take place, scale velocity is obviously accelerated when being heated to 60-70 ℃.The slow water of flow velocity is easy scale formation more, in the water heater water mobile be the utmost point slowly, scale velocity can be faster.These dirts are hard like calculus, and it is very poor to transmit the ability of heat, only reach irony or glass 1% less than, these dirts can be on the increase, can the many adverse consequences of generation in the use of water heater:
A makes the caloric receptivity of water not enough, and the temperature of water is difficult to raise, the electricity charge of waste about 30%.By the 30 yuan of calculating of need of heating up water in every month, about 10 yuan were wasted.
B is prone to cause maloperation because probe by the incrustation scale parcel, is difficult to detect the signal of water temperature and water level.
The electrothermal tube efficiency of heating surface of c assistant heating reduces.Because electrothermal tube is wrapped up by incrustation scale, heat distributes and does not go out, and heat is too high in causing, and often blows heating wire or hardening cracks the electric heating pipe box, causes danger easily, has to often change.Fouling also can make metal covering enrichment and produce the chemical attack reaction under dirt such as some corrosion component such as H+ in the water, OH-, Cl-, Mg2+, S2-.The result of corrosion is that localized metallic is damaged attenuate, and corrosion can reach and penetrate the equipment steel plate, the degree that makes equipment leakage, breakage even lost efficacy.Thereby the maintenance of equipment expense is increased.During seriously corroded, equipment is scrapped in advance.
The d internal diameter of the pipeline attenuates.Because the incrustation scale of knot stops in the pipeline, makes current not smooth.All above-mentioned faults can make the serviceability of water heater have a greatly reduced quality, and cause great inconvenience and trouble to the user.
The e incrustation scale is to the harm of health.Tartar, periodontitis often are to be caused by incrustation scale.Can cause the people desperately still do not have the preventible Legionella bacteria of vaccine so far, just conceal in incrustation scale, annual in the world about 150,000 people die from this germ, fouling also is very serious for the injury of user's human body.
And at present, can't detect the fouling degree of water heater in the conventional detection, particularly electric heater effectively, accurately and remind user's scale removal timely, causing shortening of electric heater service life, the safety in utilization of water heater declines to a great extent.Also can't be according to the difference condition of different regions water quality, judge the different time of water heater scaling and need to clean, the time bar of scale removal.Because water quality can not get monitoring, can't promptly and accurately judge with the water environment quality, cause the influence that the variation of fouling degree causes the user after the water quality variation, the water quality of polluting because of fouling is cooked and is all brought influence having a bath, wash dish.
Because do not detect the method for water heater water quality, existing electric heater can't detect the fouling degree of electric heater according to the situation of water quality, causes the secondary pollution of water quality.The electric conductivity of water is an important indicator of water quality quality, and resistivity should be greater than 1300 Ω cm 15 ℃ the time like GB regulation running water, and general pure water resistivity in the time of 25 ℃ can reach 18.3M Ω cm.
Contain Ca in the general city tap-water
2+, Mg
2+Etc. electron ion, if water quality is relatively poor, contained number of ions is more, and ion can directly influence the fouling time of incrustation scale, and the content of mineral substances difference of various places running water is very big, is generally 100-450ppm.Therefore can confirm the detection of water quality and fouling degree with the mode of the electric conductivity of test water.
From the present situation of present water quality detection, for the detection method of water quality in the water heater, how to accomplish water quality that real-time and effective detects water heater embody water heater scaling inside degree still be one problem to be solved is arranged.Present water quality inspection technique does not relate to the detection to water heater water, and monitors water heater internal incrustation situation through water quality detection.
Summary of the invention
In order to overcome above-mentioned deficiency of the prior art, the present invention provides a kind of and detects water heater scaling and the method for the indication of reporting to the police.Through detection to water quality; Judge water quality condition; And analyze the fouling degree of the time bar of different quality situation lower water-heater internal incrustation, different service life lower water-heater and the information such as consumption degree of magnesium rod; And make judgement for the cleaning of water heater, for the user provides comprehensive detection, be convenient to the operating position that the user grasps water heater.
The main technical schemes that the present invention adopts comprises the steps:
A, water quality sensor and temperature compensation sensor are set in the inner bag of water heater detect the water quality signal of water heater and the temperature compensation signal around the water quality sensor;
B, detected water quality signal and temperature compensation signal are handled, and the signal after will handling carries out analog-to-digital conversion;
Signal after c, the conversion inputs to single-chip microcomputer (IC), by the temperature compensation module in the single-chip microcomputer (IC) signal is carried out the temperature-compensating computing, to proofread and correct the resistance value of water under the different water temperatures;
D, said single-chip microcomputer (IC) compensate computing according to the temperature compensation signal value to the water quality signal value, and start the time-count cycle of corresponding duration according to the signal value behind the compensation operation;
Output by said single-chip microcomputer after e, said timing time-count cycle are accomplished outputs control signals to said warning indicator startup work, reminds the foul of user's water heater.
The present invention also adopts following attached technical scheme: the signal value behind the compensation operation is corresponding one by one with time-count cycle, the time-count cycle of the corresponding different durations of the signal value of different sizes;
Said single-chip microcomputer reads water quality signal and temperature compensation signal by the cycle; In steps d; Single-chip microcomputer is accumulated stack to each issue signal value; And the signal that will accumulate stack exports said warning indicator to, shows accumulation stack amount by said warning indicator with the form of block diagram or cake chart, comes the fouling accumulation situation of display water heater with this;
Said single-chip microcomputer (IC) is in each cycle; Repeatedly read water quality signal and temperature compensation signal, in steps d, single-chip microcomputer calculates mean value according to the multiple signal value in each cycle; And the mean value in each cycle accumulated stack; The signal that said single-chip microcomputer will be accumulated stack exports said warning indicator to, by the form demonstration accumulation stack amount of said warning indicator with block diagram or cake chart, comes the fouling accumulation situation of display water heater with this;
Be provided with a reference value in the said single-chip microcomputer; When said accumulation superposition during more than or equal to said a reference value; Said single-chip microcomputer outputs control signals to said warning indicator, and the block diagram or the cake chart that make said warning indicator be by red display, and/or sends sound and light alarm;
When said accumulation superposition during more than or equal to said a reference value, the accumulation stack computing of next round is carried out in said single-chip microcomputer (IC) zero clearing;
In steps d, said single-chip microcomputer (IC) compares value behind the compensation operation and preset reference value: if the value relatively greater than a, then timing module started for first time-count cycle, the timing time of said first time-count cycle is J; Or the value relatively more than or equal to b smaller or equal to a, then timing module started for second time-count cycle, the timing time of said second time-count cycle is K; Or the value relatively is less than b; Then timing module started for the 3rd timing cycle; The timing time in said the 3rd timing cycle is L; Said J＞K＞L, the output by said single-chip microcomputer after said first time-count cycle or second time-count cycle or the timing of the 3rd timing cycle are accomplished outputs control signals to said warning indicator startup work, reminds the foul of user's water heater;
If relatively back voltage of signals value is at below 20% of single-chip microcomputer (IC) supply voltage, then timing module started for first time-count cycle, and the timing time of said first time-count cycle is J; Or relatively back voltage of signals value single-chip microcomputer (IC) supply voltage 20% to 40% between, then timing module started for second time-count cycle, the timing time of said second time-count cycle is K; Or relatively back voltage of signals value is at more than 40% of single-chip microcomputer (IC) supply voltage, and then timing module started for the 3rd timing cycle, and the timing time in said the 3rd timing cycle is L;
In step e, after said timing circuit timing is accomplished or after said warning indicator starts, said single-chip microcomputer (IC) zero clearing, repeating step a carries out the judgement of a new round to steps d;
Carrying out step a in the process of step e, causing loss of data, in the single-chip microcomputer (IC) memory is being set, the data that step a is produced to the step e are being stored in order to prevent that water heater outage, switch from restarting.
The beneficial effect that adopts the present invention to bring is: (1) the present invention is through the detection to water quality; Judge the quality of the used water quality of water heater; And analyze time cycle of fouling under the different quality according to judged result, and degree that should week after date fouling, and in time remind the user.What make user real time understands and grasp the present operating position of water heater, and whether the fouling degree need clean inner bag, scale removal.Not only improved the service life of water heater greatly, and to also making improvement on user's the safety in utilization.The user can clean inner bag timely, and scale removal has effectively been avoided being polluted because of inner bag water quality, and causes the security hidden danger of water.(2) temperature compensation module is that the detection of water quality sensor provides water temperature temperature difference school team, avoids water quality sensor to cause because of water temperature changes detecting to lose accurate situation and occurs, and makes detection more accurate.(3) the present invention through detecting water electric conductivity and temperature and convert voltage signal to; Through the temperature-compensating computing resistance value of water is proofreaied and correct; And start the time-count cycle of corresponding different durations according to the size of the value after the temperature-compensating computing; After accomplishing time-count cycle, start warning indicator, the situation of water heater scaling is provided for the user.(4) in further improvement project provided by the invention; Single-chip microcomputer is accumulated the stack computing by the cycle to the water quality signal; And the cake chart or the block diagram that pass through in the warning indicator show the change procedure of accumulating the stack amount; Not only can detect the fouling intensity of variation of water heater in real time, dynamically, also show, make the understanding water heater foul instantly and the degree of fouling of user real time for the user provides real-time fouling degree monitoring.The inaccurate error problem of detection that the processing method of accumulation stack can effectively avoid the water heater environmental change to cause change of water quality to bring.(5) in more further solution provided by the invention; For detecting and avoid the detection error that the water environmental change brings more accurately, single-chip microcomputer repeatedly reads the water quality signal in each cycle, and averages; Accumulate stack with the mean value in each cycle then; Cycle can be 1 month, in 1 month cycle, can divide and read the water quality signal 4 times, makes dynamic monitoring more accurate like this; Avoid water quality environment to change the detection error of bringing, make the fouling monitoring more accurate.(6) in the another kind of scheme provided by the invention, be provided with comparison module in the single-chip microcomputer.Detect the electric conductivity and the temperature of water and convert voltage signal to; Through the temperature-compensating computing resistance value of water is proofreaied and correct; And a reference value that the value after the temperature-compensating computing and single-chip microcomputer are set compares; And start corresponding timing circuit timing according to Different Results relatively, after timing is accomplished, start the fouling degree that the present water heater of user is reminded in warning indicator work.Because the quality of water quality electric conductivity has directly been reacted the quality of water quality, i.e. what of calcium ions and magnesium ions in the water, this has also directly reacted degree, the speed of fouling.Through detecting the quality of differentiating water quality, start corresponding timing circuit.The fouling degree of water heater can be provided for the user more accurately, the information that whether need clean inner bag, scale removal is provided for the client.(7) because the water quality of water heater is monitored, can accurately monitor and show the water quality situation, for the user removes incrustation scale, safeguards that inner bag gives security, water heater water quality is guaranteed, more help user's use, have a bath, wash dish and cook etc.Also improved the security that the user uses.The health that more helps human body is avoided the generation of disease.(8) adopt columnar electrode or plate electrode can effectively increase the contact area of electrode and water; To avoid the electrode fouling that detection is brought influence; Electrode surface is done smooth treatment simultaneously; And adopt less scaling stainless steel material to make, and with the time of prolongation electrode surface fouling, thus the service time of prolongation electrode.
Description of drawings
Fig. 1 is the process chart of detection method of the present invention;
Fig. 2 is the circuit diagram of water heater of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is done further detailed description:
As shown in Figure 1, for a kind of method that detects water heater scaling and report to the police and indicate provided by the invention, comprise the steps:
A, water quality sensor and temperature compensation sensor are set in the inner bag of water heater detect the water quality signal of water heater and the temperature compensation signal around the water quality sensor;
B, detected water quality signal and temperature compensation signal are handled, and the signal after will handling carries out analog-to-digital conversion;
Signal after c, the conversion inputs to single-chip microcomputer (IC), by the temperature compensation module in the single-chip microcomputer (IC) signal is carried out the temperature-compensating computing, to proofread and correct the resistance value of water under the different water temperatures;
D, said single-chip microcomputer (IC) compensate computing according to the temperature compensation signal value to the water quality signal value, and start the time-count cycle of corresponding duration according to the signal value behind the compensation operation;
Output by said single-chip microcomputer after e, said timing time-count cycle are accomplished outputs control signals to said warning indicator startup work, reminds the foul of user's water heater.
Said single-chip microcomputer IC stores the timing time data of value, comparative result and the timing circuit of voltage signal, the temperature-compensating computing of input.Temperature-compensating computing described here is for fear of the water quality sensor temperature influence and the resistance detection of water is lost accuracy.Definite says, temperature-compensating is to remedy the too high or too low resistance value to water of water temperature to detect the influence that brings.The resistance value of general water detects under the water temperature of 25 degree carries out.The effect of temperature-compensating is to be higher than 25 degree or to be lower than 25 when spending when actual water temperature, and resistance value is proofreaied and correct.Such as, when water temperature is 60 when spending, the signal of the detected resistance value of water quality sensor is 2K, so the temperature-compensating computing then can with the water temperature that exceeds 25 degree promptly the corresponding offset 5%*2K of 35 degree from the 2K numerical value of reality, deduct i.e.: 2K-2K*5%=1.9K.Same reason, if temperature is lower than 25 degree, then temperature-compensating computing meeting adds certain offset on the basis of actual resistance.
In this programme, the signal value behind the compensation operation is corresponding one by one with time-count cycle, the time-count cycle of the corresponding different durations of the signal value of different sizes.Form a tabular form, the signal values of different sizes are the time-count cycle of corresponding different durations separately, is 1v like the voltage of signal value, and be 3 years corresponding time-count cycle, for 2v corresponding time-count cycle is 2 years, for 3v corresponding time-count cycle is 1 year.For the accuracy that detects, can be with numerical value and the more refinement of doing time-count cycle.
This programme through detecting water electric conductivity and temperature and convert voltage signal to; Through the temperature-compensating computing resistance value of water is proofreaied and correct; And start the time-count cycle of corresponding different durations according to the size of the value after the temperature-compensating computing; After accomplishing time-count cycle, start warning indicator, the situation of water heater scaling is provided for the user.
In further preferred version provided by the invention: said single-chip microcomputer reads water quality signal and temperature compensation signal by the cycle; In steps d; Single-chip microcomputer is accumulated stack to each issue signal value; And the signal that will accumulate stack exports said warning indicator to, shows accumulation stack amount by said warning indicator with the form of block diagram or cake chart, comes the fouling accumulation situation of display water heater with this.
In this programme; The great advantage of this scheme is to detect in real time, dynamically the fouling intensity of variation of water heater;, the user shows that the understanding water heater that makes user real time foul and the degree of fouling instantly provides solution for providing the monitoring of real-time fouling degree.The inaccurate error problem of detection that the processing method of accumulation stack can effectively avoid the water heater environmental change to cause change of water quality to bring.Change like water in the process of using, or water heater changed the environment of installing and using, will be real-time in the detection of ensuing this month embody and embodies through block diagram or cake chart.
In further preferred version provided by the invention: said single-chip microcomputer (IC) is in each cycle; Repeatedly read water quality signal and temperature compensation signal; In steps d; Single-chip microcomputer calculates mean value according to the multiple signal value in each cycle, and the mean value in each cycle is accumulated stack, and the signal that said single-chip microcomputer will be accumulated stack exports said warning indicator to; By the form demonstration accumulation stack amount of said warning indicator with block diagram or cake chart, the fouling accumulation situation of coming display water heater according to this.Be provided with a reference value in the said single-chip microcomputer; When said accumulation superposition during more than or equal to said a reference value; Said single-chip microcomputer outputs control signals to said warning indicator, and the block diagram or the cake chart that make said warning indicator be by red display, and/or sends sound and light alarm.When said accumulation superposition during more than or equal to said a reference value, the accumulation stack computing of next round is carried out in said single-chip microcomputer IC zero clearing.
The improvements of this programme are, can detect and avoid the detection error that the water environmental change brings more accurately, and single-chip microcomputer repeatedly reads the water quality signal in each cycle; And average, accumulate stack with the mean value in each cycle then, the cycle can be 1 month; In 1 month cycle, can divide and read the water quality signal 4 times; Make dynamic monitoring more accurate like this, avoid water quality environment to change the detection error of bringing, make the fouling monitoring more accurate.Can come the time of adjustment cycle according to the situation of various places, 1 month or 1 season or half a year are one-period.Cycle is short more, and the error that change of water quality is caused is just more little, and the monitoring accuracy of water quality detection and fouling is just higher.
The present invention also provides another kind of scheme; In steps d; Said single-chip microcomputer (IC) compares value behind the compensation operation and preset reference value: if the value relatively greater than a, then timing module started for first time-count cycle, the timing time of said first time-count cycle is J; Or the value relatively more than or equal to b smaller or equal to a, then timing module started for second time-count cycle, the timing time of said second time-count cycle is K; Or the value relatively is less than b; Then timing module started for the 3rd timing cycle; The timing time in said the 3rd timing cycle is L; Said J＞K＞L, the output by said single-chip microcomputer after said first time-count cycle or second time-count cycle or the timing of the 3rd timing cycle are accomplished outputs control signals to said warning indicator startup work, reminds the foul of user's water heater.
In this programme, if relatively back voltage of signals value is at below 20% of single-chip microcomputer (IC) supply voltage, then timing module started for first time-count cycle, and the timing time of said first time-count cycle is J; Or relatively back voltage of signals value single-chip microcomputer (IC) supply voltage 20% to 40% between, then timing module started for second time-count cycle, the timing time of said second time-count cycle is K; Or relatively back voltage of signals value is at more than 40% of single-chip microcomputer (IC) supply voltage, and then timing module started for the 3rd timing cycle, and the timing time in said the 3rd timing cycle is L.
The supply voltage of said single-chip microcomputer (IC) is 5V, in step e: the signal relatively, if its voltage below 1V, then timing module started for first time-count cycle, the timing time of said first time-count cycle is between 2 years to 3 years; Or the signal relatively, if its voltage between 1V to 2V, then timing module started for second time-count cycle, the timing time of said second time-count cycle is between 1 year to 2 years; Or the signal relatively, if its voltage more than 2V, then timing module started for the 3rd timing cycle, the timing time in said the 3rd timing cycle is in 1 year.
As shown in Figure 2; Said signal pre-processing circuit comprises the water quality detection circuit; Temperature-compensation circuit; Said water quality detection circuit detects the resistance signal of water and changes voltage signal into through water quality sensor R and inputs to said signaling conversion circuit, and said temperature-compensation circuit detects the temperature signal of water and changes voltage signal into through said temperature sensor RT and inputs to said signaling conversion circuit.
Said testing circuit also comprises first resistance R 1; One end ground connection of said first resistance R 1; The end of said water quality sensor R is connected with Vcc, and the other end of the other end of said first resistance R 1 and said water quality sensor R together inserts No. 1 input port of said single-chip microcomputer IC.Said temperature-compensation circuit also comprises second resistance R 2 and first capacitor C 1; Said second resistance R 2 and 1 parallel connection of said first capacitor C; And the end after the parallel connection links to each other with Vcc, common No. 2 input ports that insert said single-chip microcomputer IC of the end of the other end and said temperature sensor RT, the other end ground connection of said temperature sensor RT.Said alert circuit comprises light-emitting diode display, and said light-emitting diode display and said single-chip microcomputer IC No. 3, No. 4 link to each other with No. 5 output ports.
When water quality was good, the resistance of water quality sensor R was bigger, and Vcc is through the dividing potential drop of the water quality sensor R and first resistance R 1, and is lower at the voltage of single-chip microcomputer IC1 input port; When water quality bad time, the resistance of water quality sensor R is less, and Vcc is through the dividing potential drop of the water quality sensor R and first resistance R 1, and is higher at the voltage of No. 1 input port of single-chip microcomputer IC.The i.e. lower voltage of water quality correspondence preferably, the corresponding higher voltage of relatively poor water quality.When water temperature was higher, the resistance of temperature sensor RT was less, and Vcc is through the dividing potential drop of second resistance R 2 and temperature sensor RT, and is less at the voltage of No. 2 input ports of single-chip microcomputer IC; When water temperature was low, the resistance of temperature sensor RT was bigger, and Vcc is through the dividing potential drop of second resistance R 2 and temperature sensor RT, and is bigger at the voltage of No. 2 end inbound ports of single-chip microcomputer IC.First capacitor C 1 is done filtering and is used.The higher lower voltage of temperature correspondence.Analog to digital conversion circuit among the single-chip microcomputer IC carries out analog-to-digital conversion to the signal of No. 1 input port and No. 2 input port inputs; The temperature-compensating computing is carried out by temperature compensation module in the conversion back; The value after the temperature-compensating computing and a reference value of setting are compared by comparison module; Start corresponding timing circuit timing according to different comparative results, start led pipe corresponding in the alert circuit after timing is accomplished and light, remind the fouling degree of the present water heater of user.
In this programme; Electric conductivity and temperature through detecting water also converts voltage signal to; Through the temperature-compensating computing resistance value of water is proofreaied and correct, and a reference value of value after the temperature-compensating computing and single-chip microcomputer setting is compared, and start corresponding timing circuit timing according to Different Results relatively; After timing is accomplished, the fouling degree and the excellent consumption situation of magnesium that start the bright lamp of alert circuit or report to the police and remind the present water heater of user.Because the quality of water quality electric conductivity has directly been reacted the quality of water quality, i.e. what of calcium ions and magnesium ions in the water, this has also directly reacted degree, the speed of fouling.Through detecting the quality of differentiating water quality, start corresponding timing circuit.The fouling degree of water heater can be provided for the user more accurately, the information that whether need clean inner bag, scale removal is provided for the client.As it is relatively poor to differentiate water quality electric conductivity, and calcium ions and magnesium ions is less, and water heater liner fouling meeting after using 2 to 3 years under this water quality environment acquires a certain degree; Then start corresponding timing circuit timing, treat that water heater uses the full LED lamp that starts after 2 years to 3 years, tells the fouling degree of the present water heater liner of user; Do not do scale removal like the user and handle, then water heater can continue analysis and judgement water quality, like good conductivity; Explain that calcium magnesium plasma is many; Water heater liner will increase the weight of less than 1 year fouling degree under this water quality environment, and the fouling degree also can be even more serious, then can light second lamp after full 1 year in timing; Tell that the present inner bag fouling of user degree is comparatively serious, water quality is relatively poor.Continue variation if continue to detect water quality environment, then can in the shorter time, light the 3rd lamp, tell the user that present water quality is very poor, the fouling degree of water heater liner is very serious.Must carry out scale removal, clean.
In step e, after said timing circuit timing is accomplished or after said warning indicator starts, said single-chip microcomputer (IC) zero clearing, repeating step a carries out the relatively judgement of a new round to step e.
In step b, said detected signal to be handled, the resistance signal of the water that water quality sensor (R) is detected changes voltage signal into, and the temperature signal of the water that said temperature sensor (RT) is detected changes voltage signal into.
In above-mentioned preferred version, said water quality sensor is two electrodes, and said electrode is columnar electrode or plate electrode, and said motor adopts stainless steel material to process.To avoid the electrode fouling that detection is brought influence, electrode surface is done smooth treatment simultaneously, and adopts less scaling stainless steel material to make, with the time of prolongation electrode surface fouling, thus the service time of prolongation electrode.
Claims (10)
1. one kind is detected water heater scaling and the method for the indication of reporting to the police, and it is characterized in that comprising the steps:
A, water quality sensor and temperature compensation sensor are set in the inner bag of water heater detect the water quality signal of water heater and the temperature compensation signal around the water quality sensor;
B, detected water quality signal and temperature compensation signal are handled, and the signal after will handling carries out analog-to-digital conversion;
Signal after c, the conversion inputs to single-chip microcomputer (IC), by the temperature compensation module in the single-chip microcomputer (IC) signal is carried out the temperature-compensating computing, to proofread and correct the resistance value of water under the different water temperatures;
D, said single-chip microcomputer (IC) compensate computing according to the temperature compensation signal value to the water quality signal value, and start the time-count cycle of corresponding duration according to the signal value behind the compensation operation;
Output by said single-chip microcomputer after e, said timing time-count cycle are accomplished outputs control signals to said warning indicator startup work, reminds the foul of user's water heater.
2. method according to claim 1 is characterized in that: the signal value behind the compensation operation is corresponding one by one with time-count cycle, the time-count cycle of the corresponding different durations of the signal value of different sizes.
3. method according to claim 1; It is characterized in that: said single-chip microcomputer reads water quality signal and temperature compensation signal by the cycle; In steps d, single-chip microcomputer is accumulated stack to each issue signal value, and will accumulate the stack signal export said warning indicator to; By the form demonstration accumulation stack amount of said warning indicator, come the fouling accumulation situation of display water heater with this with block diagram or cake chart.
4. method according to claim 1; It is characterized in that: said single-chip microcomputer (IC) is in each cycle; Repeatedly read water quality signal and temperature compensation signal, in steps d, single-chip microcomputer calculates mean value according to the multiple signal value in each cycle; And the mean value in each cycle accumulated stack; The signal that said single-chip microcomputer will be accumulated stack exports said warning indicator to, by the form demonstration accumulation stack amount of said warning indicator with block diagram or cake chart, the fouling accumulation situation of coming display water heater successively.
5. according to claim 3 or 4 described water heaters; It is characterized in that: be provided with a reference value in the said single-chip microcomputer; When said accumulation superposition during more than or equal to said a reference value; Said single-chip microcomputer outputs control signals to said warning indicator, and the block diagram or the cake chart that make said warning indicator be by red display, and/or sends sound and light alarm.
6. water heater according to claim 5 is characterized in that: when said accumulation superposition during more than or equal to said a reference value, the accumulation stack computing of next round is carried out in said single-chip microcomputer (IC) zero clearing.
7. water heater according to claim 1; It is characterized in that: in steps d; Said single-chip microcomputer (IC) compares value behind the compensation operation and preset reference value: if the value relatively is greater than a; Then timing module started for first time-count cycle, and the timing time of said first time-count cycle is J; Or the value relatively more than or equal to b smaller or equal to a, then timing module started for second time-count cycle, the timing time of said second time-count cycle is K; Or the value relatively is less than b; Then timing module started for the 3rd timing cycle; The timing time in said the 3rd timing cycle is L; Said J＞K＞L, the output by said single-chip microcomputer after said first time-count cycle or second time-count cycle or the timing of the 3rd timing cycle are accomplished outputs control signals to said warning indicator startup work, reminds the foul of user's water heater.
8. method according to claim 7 is characterized in that: if relatively back voltage of signals value is at below 20% of single-chip microcomputer (IC) supply voltage, then timing module started for first time-count cycle, and the timing time of said first time-count cycle is J; Or relatively back voltage of signals value single-chip microcomputer (IC) supply voltage 20% to 40% between, then timing module started for second time-count cycle, the timing time of said second time-count cycle is K; Or relatively back voltage of signals value is at more than 40% of single-chip microcomputer (IC) supply voltage, and then timing module started for the 3rd timing cycle, and the timing time in said the 3rd timing cycle is L.
9. method according to claim 1 is characterized in that: in step e, and after said timing circuit timing is accomplished or after said warning indicator starts, said single-chip microcomputer (IC) zero clearing, repeating step a carries out the judgement of a new round to steps d.
10. method according to claim 1; It is characterized in that: carrying out step a in the process of step e; Cause loss of data in order to prevent that water heater outage, switch from restarting, in the single-chip microcomputer (IC) memory is set, the data that step a is produced to the step e are stored.
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| CN201010263112.8A CN102374663B (en) | 2010-08-20 | 2010-08-20 | Method for detecting water heater scaling and making alarming indication |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103847632A (en) * | 2012-12-04 | 2014-06-11 | 昆山研达电脑科技有限公司 | Environment temperature timing system |
| CN104345210A (en) * | 2013-08-08 | 2015-02-11 | 李显斌 | Tooling fixture for production line testing and air energy water heater testing method thereof |
| CN104516285A (en) * | 2013-09-26 | 2015-04-15 | 樱花卫厨（中国）股份有限公司 | Electric water heater water quality detection control circuit |
| CN104535622A (en) * | 2014-12-31 | 2015-04-22 | 深圳市赛亿科技开发有限公司 | Monitoring method for sudden water quality change |
| WO2015081752A1 (en) * | 2013-12-03 | 2015-06-11 | 芜湖美的厨卫电器制造有限公司 | Cleaning control apparatus and cleaning control method for electric water heater |
| CN105135413A (en) * | 2015-09-15 | 2015-12-09 | 张瑞岭 | Boiler safety control device |
| CN105276819A (en) * | 2014-07-04 | 2016-01-27 | 珠海格力电器股份有限公司 | Anode rod replacement reminding method and device and water heater |
| CN105546830A (en) * | 2015-12-31 | 2016-05-04 | 天津市嘉尔屹科技发展有限公司 | Electric water heater water scale early warning device based on specific resistance measurement |
| CN106126953A (en) * | 2016-06-30 | 2016-11-16 | 北京小米移动软件有限公司 | Humidifier cleans the determination method and device in time limit |
| CN103847632B (en) * | 2012-12-04 | 2016-11-30 | 昆山研达电脑科技有限公司 | Ambient temperature timekeeping system |
| CN106595035A (en) * | 2015-10-19 | 2017-04-26 | 武汉海尔热水器有限公司 | Water heater and cleaning control method therefor |
| CN107807147A (en) * | 2017-11-24 | 2018-03-16 | 常州罗盘星检测科技有限公司 | A kind of thermal resistance dirt detector |
| CN107886688A (en) * | 2017-11-10 | 2018-04-06 | 广东美的厨房电器制造有限公司 | Clean method, system and the household electrical appliance of reminder time |
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| CN103847632A (en) * | 2012-12-04 | 2014-06-11 | 昆山研达电脑科技有限公司 | Environment temperature timing system |
| CN103847632B (en) * | 2012-12-04 | 2016-11-30 | 昆山研达电脑科技有限公司 | Ambient temperature timekeeping system |
| CN104345210A (en) * | 2013-08-08 | 2015-02-11 | 李显斌 | Tooling fixture for production line testing and air energy water heater testing method thereof |
| CN104516285A (en) * | 2013-09-26 | 2015-04-15 | 樱花卫厨（中国）股份有限公司 | Electric water heater water quality detection control circuit |
| WO2015081752A1 (en) * | 2013-12-03 | 2015-06-11 | 芜湖美的厨卫电器制造有限公司 | Cleaning control apparatus and cleaning control method for electric water heater |
| CN105276819B (en) * | 2014-07-04 | 2018-04-20 | 珠海格力电器股份有限公司 | Anode rod replacement reminding method and device and water heater |
| CN105276819A (en) * | 2014-07-04 | 2016-01-27 | 珠海格力电器股份有限公司 | Anode rod replacement reminding method and device and water heater |
| CN104535622A (en) * | 2014-12-31 | 2015-04-22 | 深圳市赛亿科技开发有限公司 | Monitoring method for sudden water quality change |
| CN105135413A (en) * | 2015-09-15 | 2015-12-09 | 张瑞岭 | Boiler safety control device |
| CN106595035A (en) * | 2015-10-19 | 2017-04-26 | 武汉海尔热水器有限公司 | Water heater and cleaning control method therefor |
| CN105546830A (en) * | 2015-12-31 | 2016-05-04 | 天津市嘉尔屹科技发展有限公司 | Electric water heater water scale early warning device based on specific resistance measurement |
| CN106126953A (en) * | 2016-06-30 | 2016-11-16 | 北京小米移动软件有限公司 | Humidifier cleans the determination method and device in time limit |
| CN107886688A (en) * | 2017-11-10 | 2018-04-06 | 广东美的厨房电器制造有限公司 | Clean method, system and the household electrical appliance of reminder time |
| CN107807147A (en) * | 2017-11-24 | 2018-03-16 | 常州罗盘星检测科技有限公司 | A kind of thermal resistance dirt detector |
| CN107807147B (en) * | 2017-11-24 | 2024-04-26 | 常州罗盘星检测科技有限公司 | Thermal scale detector |
| CN109984572A (en) * | 2017-12-29 | 2019-07-09 | 宁波方太厨具有限公司 | A kind of scale monitoring method and the electric steam box using the scale monitoring method |
| CN109984572B (en) * | 2017-12-29 | 2024-06-18 | 宁波方太厨具有限公司 | Scale monitoring method and electric steam box applying same |
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