CN105189822A - Method for controlling operation of heating device - Google Patents
Method for controlling operation of heating device Download PDFInfo
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- CN105189822A CN105189822A CN201480026014.9A CN201480026014A CN105189822A CN 105189822 A CN105189822 A CN 105189822A CN 201480026014 A CN201480026014 A CN 201480026014A CN 105189822 A CN105189822 A CN 105189822A
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 33
- 239000008151 electrolyte solution Substances 0.000 claims abstract description 18
- 230000007797 corrosion Effects 0.000 claims abstract description 17
- 238000005260 corrosion Methods 0.000 claims abstract description 17
- 238000001514 detection method Methods 0.000 claims abstract description 5
- 230000005611 electricity Effects 0.000 claims description 12
- 230000008859 change Effects 0.000 claims description 8
- 238000005259 measurement Methods 0.000 claims description 6
- 239000006185 dispersion Substances 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 4
- 238000011161 development Methods 0.000 description 9
- 238000012545 processing Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000001276 controlling effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
- C23F13/02—Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
- C23F13/04—Controlling or regulating desired parameters
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
- C23F13/02—Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
- C23F13/06—Constructional parts, or assemblies of cathodic-protection apparatus
- C23F13/08—Electrodes specially adapted for inhibiting corrosion by cathodic protection; Manufacture thereof; Conducting electric current thereto
- C23F13/22—Monitoring arrangements therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/40—Arrangements for preventing corrosion
- F24H9/45—Arrangements for preventing corrosion for preventing galvanic corrosion, e.g. cathodic or electrolytic means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/40—Arrangements for preventing corrosion
- F24H9/45—Arrangements for preventing corrosion for preventing galvanic corrosion, e.g. cathodic or electrolytic means
- F24H9/455—Arrangements for preventing corrosion for preventing galvanic corrosion, e.g. cathodic or electrolytic means for water heaters
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F2213/00—Aspects of inhibiting corrosion of metals by anodic or cathodic protection
- C23F2213/10—Controlling or regulating parameters
- C23F2213/11—Controlling or regulating parameters for structures subject to stray currents
Abstract
Method for controlling the operation of a heating device (10), the heating device (10) comprising a tank (12) for containing an electrolytic solution, an electrode (13) immersed in the electrolytic solution, an electrical energy generator (14) connected to the electrode (13) and to the tank (12), and a controller (16) provided with a measurer (15), the measurer (15) measuring at least one electrical quantity generated between the electrode (13) and the tank (12). The method provides for adjusting the electrical energy generator (14) to maintain a protection potential (Vp) in the electrolytic solution suitable for ensuring the protection of the tank (12) from corrosion; and comprising at least one step of: the detection measures at least one electrical quantity (Vm 1, Vm 2; Im) at a meter (15) and a controller (16) processes the at least one electrical quantity (Vm 1, Vm 2; Im) to determine the electrical dispersion present in the tank (12) during the presence of the electrical dispersion.
Description
Technical field
The present invention relates to a kind of method controlling heating unit and run, it is advantageously used in the corrosion phenomenon reduced with continuing to use described device to associate.
Especially, can implement according to method of the present invention in heating unit, this heating unit comprises for the electric galvanic protection equipment of container corrosion, the groove comprising water or metal parts (such as such as, boiler).
Background technology
For the galvanic protection of the heating unit for corrosion, the equipment being applicable to boiler or water heater is known.
Especially, boiler-type device becomes known for heating water, and wherein, the electrode (being also referred to as anode) be made up of such as titanium is immersed in the water comprised in the boiler.The positive pole of generator of electric energy is connected to anode and negative pole is connected to boiler, with from corrosion.
The intensity of the electric current produced between anode and boiler at the timed interval determined periodically time to time change, and at this During, measures the potential difference produced between the two poles of the earth of producer relative to values for normal operation.
Measured potential difference and predetermined benchmark value compare, and this benchmark value corresponds to the given value wherein stoping corrosion; Relative to any deviation of this benchmark value for determining to be applied to the strength of current between anode and boiler, to obtain the potential difference being substantially equal to predetermined benchmark value.
Such as determine known potential difference (being called protection potential for short below) in known manner with reference to Pourbaix figure or current potential/pH figure, this current potential/pH figure is the expression of stable condition possible under the balance of electro-chemical systems in the aqueous solution.This model is for predicting the behavior of metallic substance about corrosion, and this metallic substance is called as iron alloy in this case, is also applicable to other metal, although adopt different current potentials.
Understand the material making boiler, therefore may determine to be applied to the protection potential between anode and boiler.
Although this guard method ensure enough protection boiler from corrosion, it is the system of Self-Closing, and can not detect cause due to the external factor of heating unit may affect (such as such as, electrostatic load, electrodispersion body or other).
Prior art document WO2009/029297A1, WO2007/010335A2 and US6.080.973A describe and control for tank and the corrosion of well heater and/or the system of other operation exception.
An object of the present invention is to improve a kind of method controlling heating unit and run, this heating unit is efficient, and allows the working life extending the heating unit using it.
Another object of the present invention improves a kind of method improving the security of heating unit.
The applicant designs, test and embody the present invention, to overcome the shortcoming of prior art and to obtain these and other objects and advantage.
Summary of the invention
The present invention is described in the independent claim, and with it for feature, subclaims describes further feature of the present invention or the distortion to main inventive concept simultaneously.
According to above-mentioned purpose, method according to the present invention is applied to the operation controlling heating unit, and wherein, this heating unit comprises:
-comprise the groove of electrolytic solution (such as, water),
-be immersed in the electrode of electrolytic solution,
-be connected to the generator of electric energy of electrode and groove,
-being provided with the controller of time meter, at least one electricity produced between electrode and groove measured by this time meter.
The method provides, and regulate generator of electric energy, to keep protection potential in electrolytic solution, this protection potential has the first given value, this first given value substantially constant in time, is suitable for ensureing that this groove of protection is from corrosion.
According to an aspect of the present invention, the method comprising the steps of: detect the electrodispersion body be present in groove, during this period, time meter measures at least one electricity and this at least one electricity of controller process, to determine the existence of electrodispersion body, this electrodispersion body is because be the reason of the corrosion effect occurred on cell wall, so will be avoided.
According to the embodiment of the first form of the present invention, detecting step provides, and detects the direct current of the electrodispersion body be present in groove.According to the embodiment of this form, direct current detecting step comprises:
The step of the electric energy that-brief interruption or minimizing are supplied by generator of electric energy;
The step of-measurement rest potential, this rest potential has the second value, and it produces between electrode and groove;
The step of-relatively more measured the second value of rest potential and the 3rd value of reference potential;
And wherein, if the second measured value is greater than the 3rd value of reference potential, then the operational conditions in controller identification normal range, and wherein, if the second measured value is less than the 3rd value of reference potential, then controller identification comes from the existence of the galvanic electrodispersion body in groove.
According to the embodiment of another form, detecting step provides, and detects the alternating-current of electrodispersion body.
According to the embodiment of this rear form, measured electricity is measured electric current.In this case, detecting step comprises:
-first step, wherein, the generator of electric energy potential variation that cycle alternation changes between the first current potential and the second current potential being less than the first potential value between electrode and groove, to produce protection potential in electrolytic solution;
-second step, wherein, time meter takes multiple measurements the electric current circulated between electrode and groove;
-third step, wherein, whether the electrode measured by controller verification and the value of electric current circulated between groove keep variable around equalizing current, and in this case, controller identification wherein lacks the condition of stray current;
-four step, wherein, if the value of the electric current circulated between measured electrode and groove is outside equalizing current scope, then the frequency of the current variation value of controller inspection institute measurement corresponds to the periodicity of stray current, and in this case, identify the existence of the electrodispersion body of the alternating-current come from groove.
The invention still further relates to the electric galvanic protection equipment that a kind of heating unit with comprising groove is associated, this groove comprises electrolytic solution.This equipment comprises the electrode be immersed in during use in electrolytic solution, is connected to electrode and is connected to the generator of electric energy of groove during use and is provided with the time meter being configured to measure the electricity produced between electrode and groove.According to a feature of the present invention, controller comprises processing unit, and this processing unit is configured to the data of the electricity that reception is detected by time meter and processes electricity to determine the existence of electrodispersion body.This equipment also comprise be associated with controller to indicate the telltale of the existence of electrodispersion body.
Accompanying drawing explanation
With reference to accompanying drawing, these and other feature of the present invention becomes apparent in the following description of the embodiment from the preferred form as non-limiting example, wherein:
-Fig. 1 is schematically showing according to the heating unit of use control method of the present invention;
-Fig. 2 a shows according to the embodiment of the first form the graphic representation being applied to the current potential development in time of heating unit at normal operation period;
-Fig. 2 b is the graphic representation showing the potential difference in time measured in heating unit according to the embodiment of the first form;
-Fig. 3 a shows according to the embodiment of the second form the graphic representation being applied to the current potential development in time of heating unit at normal operation period;
-Fig. 3 b is according to the embodiment of the second form and the graphic representation of electric current development in time that detects in heating unit in operating conditions;
-Fig. 3 c is according to the embodiment of the second form and the graphic representation of electric current development in time that detects in heating unit under another operational conditions.
For the ease of understanding, if possible, use identical Reference numeral to determine element identical in accompanying drawing.Should be appreciated that a kind of element of embodiment of form and feature can be incorporated to the embodiment of other form easily, and without the need to further clarification.
Embodiment
Represented by Reference numeral 10 on the whole according to heating unit of the present invention and comprise the electric galvanic protection equipment 11 for corrosion.
Especially, heating unit 10 comprises the groove 12 with metallic surface, and this metallic surface contacts with electrolytic solution (such as water).
Conversely, electric galvanic protection equipment 11 comprises electrode 13 or anode, generator of electric energy 14 and controller 16.
Electrode 13 can comprise the titanium rod that may activate by precious materials.
The embodiment of a kind of form of the present invention provides, and generator of electric energy is the producer controlled with direct current, is below called current generator 14 for short.
Current generator 14 is connected to controller 16 conversely, and this controller 16 controls and manages the operation of current generator 14, and may send out the signal of the specific run condition (existence as electrodispersion body) of heating unit 10.
More specifically, controller 16 is provided with time meter 15, and at least one electricity measured by this time meter 15, is configured to the curtage value that test example produces as in electric galvanic protection equipment 11 (in this case, between electrode 13 and groove 12).
Time meter 15 can be that voltmeter, reometer, watt meter or simple equipment are with at least one in electricity more to be detected.
The embodiment of some forms provides controller 16 to comprise processing unit 19, and this processing unit is provided to process the data that detected by time meter 15 and the signal sending out the possible abnormal operating conditions caused due to the existence of electrodispersion body.
For this purpose, controller 16 can with telltale 17(such as, luminous indication) be associated, the operational conditions of each telltale mark heating unit 10.
In order to ensure that enough protectors 12 are from corrosion, at the normal operation period of heating unit 10, current generator 14 maintains protection potential between electrode 13 and groove 12, and this protection potential substantially constant in time, is indicated as protection potential Vp in fig. 2 a.
As mentioned above, determine the function as the material making groove 12 and reference Pourbaix figure, protection potential Vp is known value.
By means of only the mode of example, if this groove 12 is formed from steel, then protection potential Vp supposes the value that is included between 900mV and 1200mV.
By regulating the electric current that supplied by current generator 14 and the generation detecting the electric current of electric galvanic protection equipment 11 inside with time meter 15 can generate the protection potential Vp treating to produce in electrolytic solution iteratively.
The detection of electric current identifies the instability condition of the current potential in groove 12.
If time meter 15 detects the sizable deviation of electric current relative to first pre-test, then controller 16 regulates the electric current supplied by current generator 14, it is taken to the steady state value corresponding to equalizing current.With reference to figure 2a, Fig. 2 b, Fig. 3 a, Fig. 3 b and Fig. 3 c, describe a kind of heating unit 10 that controls and run and the method particularly detecting possible electrodispersion body (such as, affect groove 12 and significantly can contribute to the stray current of the corrosion of its inside).
The entity of stray current can be very little, and therefore can not produce directly interference electrical safety equipment (being such as usually located at the isolating switch in electric network).
Although they do not damage the overall security of electric network or heating unit 10, stray current is the important factor about producing corrodibility phenomenon.
When direct current dispersion and also have when alternating-current dispersion, all there is such problem.
With reference to Fig. 2 a and Fig. 2 b, the embodiment of the first form describes according to method of the present invention, for detecting the electrodispersion body in direct current.
At the normal operation period of heating unit 10, controller 16 regulates the electric current supplied by current generator 14, as mentioned above, with the equilibrium conditions of the protection potential Vp between maintenance electrode 13 and groove 12.
Subsequently, carry out following steps, during the controlled change that the electric energy supplied by current generator is provided, detect electrodispersion body.
As shown in Figure 2 a, detecting step occurs than the timed interval T short according to the total runtime of heating unit 10 of the present invention.By means of only the mode of example, can suppose, timed interval T continues about one minute, and performs in the circulative situation of 12 hours, that is, periodically detect for one day twice.
The embodiment of some forms provides, and during detecting step, brief interruption electric current supply is to current generator 14, and measurement is undertaken by time meter 15.
It is clear that at the normal operation period of heating unit 10, the brief interruption of timed interval T does not affect the protected effect from the general corrosion undertaken by heating unit 10.
The embodiment of other form provides, and reduces the electric current only supplied by current generator 14, and this electric current of non-interrupted.
Between detection period, time meter 15 detects potential difference, is below indicated as measured current potential Vm.Measured current potential Vm corresponds to the rest potential produced between electrode 13 and groove 12.
According to experimental analysis, applicant finds, when lacking electrodispersion body, measured current potential Vm or rest potential move quickly into asymptotic value substantially stable in time, shown in Fig. 2 b curve of measured current potential Vm1 wherein being detected as being similar to.
If there is electrodispersion body in heating unit 10, then it should be noted that measured current potential Vm(but not move to asymptotic current potential in time) development reduce rapidly, thus promote corrosive nature.This condition is by shown in the curve wherein detected in Fig. 2 b of potential value Vm2.
On the basis that these are observed, method according to the present invention provides measured current potential Vm value to be compared with reference potential Vr by controller 16.Only in an illustrative manner, reference potential Vr be included in protection potential Vp 20% and 40% between.
If measured current potential Vm is greater than reference potential Vr, then controller 16 identifies the operational conditions in normal range.For this reason, in figure 2b, measured current potential is indicated as Vm1, and can find out Vm1>Vr.
If measured current potential Vm is less than reference potential Vr, then the existence of the harmful electrodispersion body in controller 16 identification slot 12 and instruction activates telltale 17.Under this condition, in figure 2b, measured current potential is indicated as Vm2, and can find out Vm2<Vr.
The embodiment of a form of the present invention provides, and after the time period S from the moment of the controlled change as instruction protection potential Vp, measures current potential.The time period S using theoretical experimental evaluation also relevant with the steady time of current potential is to move to asymptotic value as above.
The embodiment of a form of the present invention provides time period S and is included between 30 seconds and 60 seconds.Before measuring, this time S section prevents from of short duration effect being detected, and allows the operation of temporary stabilization heating unit 10.
Example
-the value of protection potential that maintains at the normal operation period of heating unit 10: Vp=-1000mV;
-when there is no direct current dispersion, the value of the current potential Vm measured by 60 seconds after brief interruption current generator 14: Vm1=-750mV;
-exist under direct current dispersion, the value of the current potential Vm measured by 60 seconds after brief interruption current generator 14: Vm2=-290mV.
Once measure measured current potential Vm, that is, the timed interval T(Fig. 2 a) after, heating unit 10 just recovers normal operation, thus potential difference is turned back to the value of protection potential Vp.
With reference to Fig. 3 a, Fig. 3 b and Fig. 3 c, describe the embodiment of another form according to method of the present invention, for detecting the electrodispersion body in alternating-current.
At the normal operation period of heating unit 10, controller 16 instruction current producer 14 has desired development and potential difference variable in time to generate between electrode 13 and groove 12.
Particularly, current generator 14 is (that is, in about every 200 μ s) alternately generation first current potential V1 and the second current potential V2 within the very short time, and compare with the first current potential V1, the intensity of this second current potential V2 reduces.
Determine the value of the first current potential V1 and the second current potential V2, to obtain the value be polarised to by electrolytic solution corresponding to protection potential Vp.
The embodiment of some forms provides, the second current potential V2 be included in the first current potential V1 30% and 70% between.
When being such as the square wave development of the cycle P of about 200 μ s, the potential variation between the first current potential V1 and the second current potential V2 can occur that (Fig. 3 a).
When heating unit 10 normal operation period and when lacking the electrodispersion body caused due to alternating-current, controller 16 by modulating the galvanic action of current generator 14 to be fed into, thus ensures the described protection potential Vp in electrolytic solution.
During this step, whether time meter 15 measuring electric quantity (in this case, electric current circulates in electric galvanic protection equipment 11) reaches equilibrium conditions to assess.Electric current measured by time meter 15 is indicated by Im in Fig. 3 b and Fig. 3 c.
Equilibrium conditions represents (Fig. 3 b) by the coherent detection of electric current I m substantially measured uniformly in time.
When the current potential of each head of current generator 14 supposes the value of the second current potential V2, measure and undertaken by time meter 15.
When lacking stray current, therefore, measured current value Im does not suffer large deviation, and keeps being limited to the value band 18 changed around the equalizing current Ie such as represented in fig 3b.
When there is alternating-current dispersion, time meter 15 detects the fluctuation of the electric current I m with periodicity measured by change of the fluctuation of the alternating-current being similar to or being equivalent to electrodispersion body.
For this purpose, the data detected by time meter 15 under each occasion are transferred to processing unit 19 with reconstruct with measured electric current I m development in time.Processing unit 19 can identify the cyclicity of detected value, when there is spuious alternating-current in the cyclicity of this detected value, such as, with being substantially equal to or the change of frequency of the multiple of the latter, with being the frequency of 50Hz or 60Hz or the change of its several times.
Fully aware of, in order to allow the cyclicity correctly gathering stray current, the frequency carrying out measuring must be greater than the frequency of stray current.
If processing unit 19 identifies the cyclicity development of the measurement carried out as indicated on, then its instruction activates telltale 17 to send out the signal of abnormal operating conditions to user.
The embodiment of forms more of the present invention can provide, and optical indicator comprises multiple light source, in this situation (Fig. 1), and red LED 17a, green LED 17b and yellow led 17c, wherein the specific run condition of each mark heating unit 10.
Controller 16 as above can also provide the function of the working hour counting electric galvanic protection equipment 11.
Such as, can be provided in the first electricity feeding to heating unit 10, telltale 17 indicates the described working hour to user, and such as, instruction corresponds to the length of service of the flashing times of red LED 17a, indicates the work moon number of the flashing times corresponding to green LED 17b.For this purpose, can suppose, this controller 16 also comprises the timer device determining the working hour.
At the normal operation period of heating unit 10, and if electrodispersion body do not detected, then green LED 17b keeps connecting.
If electrodispersion body detected, then connect yellow led 17C and keep connecting until request attended operation.
Red LED 17a may be used for indicating excessive electric absorption condition by heating unit 10, or the short circuit condition be used to indicate in heating unit 10 or open circuit.
It is clear that as described above, when not departing from the field of the invention and scope, modification and/or the interpolation of parts can be made to the method controlling heating unit operation.
It is also clear that; although the present invention is described with reference to some concrete examples; but those skilled in the art one implements the method for other equivalents many surely to control the operation of heating unit, the method for these other equivalents has the feature as set forth in claims and therefore all falls in the protection domain that limits thus.
Claims (7)
1. control the method that heating unit (10) runs, this heating unit (10) comprises the groove (12) of the electrolytic solution comprising its inside, be immersed in the electrode (13) in described electrolytic solution, be connected to the generator of electric energy (14) of described electrode (13) and described groove (12), and be provided with the controller (16) of time meter (15), at least one electricity produced between described electrode (13) and described groove (12) measured by this time meter (15), described method provides at least one step, wherein, regulate described generator of electric energy (14) to maintain the protection potential with the first value (Vp) between described electrode (13) and described groove (12), this protection potential is known and substantially constant in time, be suitable for ensureing that the described groove of protection (12) is from corrosion, it is characterized in that, it comprises at least one step: the direct current detecting the electrodispersion body be present in described groove (12), wherein, described detecting step comprises:
The step of the electric energy that-brief interruption or minimizing are supplied by described generator of electric energy (14);
-measure the step with the rest potential of the second value (Vm) produced between described electrode (13) and described groove (12);
The step of-relatively more measured described second value (Vm) of rest potential and the 3rd value (Vr) of reference potential;
Wherein, if measured described second value (Vm) is greater than described 3rd value (Vr) of reference potential, then described controller (16) identifies the operational conditions in normal range, and wherein, if measured described second value (Vm) is less than described 3rd value (Vr) of reference potential, then described controller (16) identifies the existence of the galvanic electrodispersion body come from described groove (12).
2. method according to claim 1, is characterized in that, if described second value (Vm) of measured current potential is less than reference potential (Vr), then telltale (17) is activated the existence of warning electrodispersion body.
3. method according to claim 1 and 2, is characterized in that, described 3rd value (Vr) of reference potential be included in described first value (Vp) of protection potential 20% and 40% between.
4. the method according to arbitrary aforementioned claim, it is characterized in that, the described interruption of the electric energy supplied by described generator of electric energy (14) or minimizing have the time length of the timed interval (T), and be, after time period (S) from described interruption or minimizing, the detection of the second value (Vm) of measured described current potential occurs.
5. control the method that heating unit (10) runs, this heating unit (10) comprises the groove (12) of the electrolytic solution comprising its inside, be immersed in the electrode (13) in described electrolytic solution, be connected to the generator of electric energy (14) of described electrode (13) and described groove (12), and be provided with the controller (16) of time meter (15), at least one electricity produced between described electrode (13) and described groove (12) measured by this time meter (15), described method provides at least one step, wherein, regulate described generator of electric energy (14) to maintain the protection potential with the first value (Vp) between described electrode (13) and described groove (12), this protection potential is known and substantially constant in time, be suitable for ensureing that the described groove of protection (12) is from corrosion, it is characterized in that, it comprises at least one step: the direct current detecting the electrodispersion body be present in described groove (12), wherein, described detecting step comprises:
-first step, wherein, the potential variation of described generator of electric energy (14) alternately change between the first potential value (V1) and the second potential value (V2) being less than described first potential value (V1) periodically between described electrode (13) and described groove (12), to produce described protection potential (Vp) in described electrolytic solution;
-second step, wherein, the electric current of described time meter (15) to circulation between described electrode (13) and described groove (12) takes multiple measurements;
-third step, wherein, whether the current value (Im) of the circulation between described electrode (13) and described groove (12) measured by described controller (16) checking keeps variable around the equalizing current with value (Ie), and in this case, described controller (16) identifies the condition wherein lacking stray current;
-four step, wherein, if the current value (Im) of measured circulation between described electrode (13) and described groove (12) is outside the equalizing current scope with value (Ie), whether the frequency of the value of the described curent change then measured by described controller (16) checking corresponds to the periodicity of described stray current, and in this case, identify the existence of the electrodispersion body of the alternating-current come from described groove (12).
6. method according to claim 5, is characterized in that, when current potential is assumed to be described second potential value (V2), measures measured described electric current (Im).
7. the method according to claim 5 or 6, is characterized in that, described second current potential (V2) be included in described first current potential (V1) 30% and 70% between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710936904.9A CN107686991B (en) | 2013-03-08 | 2014-03-07 | Method for controlling operation of heating device |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITUD2013A000035 | 2013-03-08 | ||
| IT000035A ITUD20130035A1 (en) | 2013-03-08 | 2013-03-08 | METHOD FOR CHECKING THE FUNCTIONING OF A HEATING SYSTEM |
| PCT/IB2014/059534 WO2014136097A1 (en) | 2013-03-08 | 2014-03-07 | Method to control the functioning of a heating apparatus |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710936904.9A Division CN107686991B (en) | 2013-03-08 | 2014-03-07 | Method for controlling operation of heating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105189822A true CN105189822A (en) | 2015-12-23 |
| CN105189822B CN105189822B (en) | 2017-11-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480026014.9A Active CN105189822B (en) | 2013-03-08 | 2014-03-07 | Method for controlling operation of heating device |
| CN201710936904.9A Active CN107686991B (en) | 2013-03-08 | 2014-03-07 | Method for controlling operation of heating device |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710936904.9A Active CN107686991B (en) | 2013-03-08 | 2014-03-07 | Method for controlling operation of heating device |
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| Country | Link |
|---|---|
| EP (2) | EP2964809B1 (en) |
| CN (2) | CN105189822B (en) |
| ES (2) | ES2622057T3 (en) |
| IT (1) | ITUD20130035A1 (en) |
| PL (2) | PL2964809T3 (en) |
| WO (1) | WO2014136097A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102019000378A1 (en) * | 2019-01-19 | 2020-07-23 | Stiebel Eltron Gmbh & Co. Kg | Hot water device and method for operating a hot water device |
| EP3947778A4 (en) * | 2019-05-01 | 2023-08-02 | A.O. Smith Corporation | System and method for predicting tank failure of a water heater |
| CN111893492A (en) * | 2020-08-04 | 2020-11-06 | 西安石油大学 | Auxiliary anode parameter optimization method for cathode protection system |
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- 2014-03-07 ES ES14716929.6T patent/ES2622057T3/en active Active
- 2014-03-07 CN CN201480026014.9A patent/CN105189822B/en active Active
- 2014-03-07 EP EP14716929.6A patent/EP2964809B1/en active Active
- 2014-03-07 CN CN201710936904.9A patent/CN107686991B/en active Active
- 2014-03-07 PL PL14716929T patent/PL2964809T3/en unknown
- 2014-03-07 ES ES16201549T patent/ES2752849T3/en active Active
- 2014-03-07 WO PCT/IB2014/059534 patent/WO2014136097A1/en active Application Filing
- 2014-03-07 PL PL16201549T patent/PL3170920T3/en unknown
- 2014-03-07 EP EP16201549.9A patent/EP3170920B1/en active Active
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Also Published As
| Publication number | Publication date |
|---|---|
| CN105189822B (en) | 2017-11-14 |
| EP2964809A1 (en) | 2016-01-13 |
| EP3170920A1 (en) | 2017-05-24 |
| PL2964809T3 (en) | 2017-07-31 |
| CN107686991A (en) | 2018-02-13 |
| ES2752849T3 (en) | 2020-04-06 |
| PL3170920T3 (en) | 2020-03-31 |
| ES2622057T3 (en) | 2017-07-05 |
| CN107686991B (en) | 2019-07-09 |
| ITUD20130035A1 (en) | 2014-09-09 |
| EP2964809B1 (en) | 2017-01-11 |
| EP3170920B1 (en) | 2019-07-31 |
| WO2014136097A1 (en) | 2014-09-12 |
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