CN113237237A - Scale inhibitor replacement reminding method for pre-filter and water heater - Google Patents
Scale inhibitor replacement reminding method for pre-filter and water heater Download PDFInfo
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- CN113237237A CN113237237A CN202110461977.3A CN202110461977A CN113237237A CN 113237237 A CN113237237 A CN 113237237A CN 202110461977 A CN202110461977 A CN 202110461977A CN 113237237 A CN113237237 A CN 113237237A
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- filter
- scale inhibitor
- water
- current
- water inlet
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 151
- 238000011045 prefiltration Methods 0.000 title claims abstract description 145
- 239000002455 scale inhibitor Substances 0.000 title claims abstract description 70
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000001514 detection method Methods 0.000 claims abstract description 47
- 239000008399 tap water Substances 0.000 claims description 31
- 235000020679 tap water Nutrition 0.000 claims description 31
- 230000002618 waking effect Effects 0.000 abstract 1
- 239000012535 impurity Substances 0.000 description 15
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000003287 bathing Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- 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
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2035—Arrangement or mounting of control or safety devices for water heaters using fluid fuel
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Water Treatment By Sorption (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a method for reminding scale inhibitor replacement of a pre-filter and a water heater. The method for reminding the replacement of the scale inhibitor of the pre-filter comprises the following steps: s1: starting the water heater; s2: the current I of the water inlet end of the pre-filter is detected by a water inlet end current detection device arranged at the water inlet end of the pre-filter1The current I2 of the water outlet end of the prefilter is detected by a water outlet end current detection device arranged at the water outlet end of the prefilter; s3: judging whether I is present1＞n＞I2If I is1＞n＞I2Judging that the scale inhibitor still exists in the prefilter, if I1≥I2If the scale inhibitor is more than or equal to n, judging that the scale inhibitor in the prefilter is completely consumed; where n is a constant current value. The method for prompting the scale inhibitor replacement of the pre-filter can automatically acquire the information whether the scale inhibitor in the pre-filter needs to be replaced. The water heater provided by the invention comprises a pre-filter and the scale inhibitor replacement handle of the pre-filterProvided is a waking method.
Description
Technical Field
The invention relates to the technical field of water heaters, in particular to a method for reminding scale inhibitor replacement of a pre-filter and a water heater.
Background
With the increasing standard of living, the consumers' pursuit of comfortable baths is becoming stronger. Wherein, comfortable bathing includes the requirements for healthy water quality and bathing comfort. Therefore, the gas water heater on the market mostly uses the prefilter to filter and purify most of the impurities in the tap water entering the water heater. However, after the scale inhibitor in the pre-filter device is consumed, the user is usually not reminded to add the scale inhibitor in time, and the user experience satisfaction is poor.
Therefore, a method for reminding the replacement of the scale inhibitor of the prefilter is needed to solve the above problems.
Disclosure of Invention
The invention aims to solve at least one of the problems in the prior related art to a certain extent, and therefore the invention provides a method for prompting the replacement of the scale inhibitor of the pre-filter, which can automatically acquire the information whether the scale inhibitor in the pre-filter needs to be replaced or not, and a user can replace the scale inhibitor in the pre-filter according to the information.
The above purpose is realized by the following technical scheme:
a method for prompting scale inhibitor replacement of a pre-filter comprises the following steps:
s1: starting the water heater;
s2: the current I of the water inlet end of the pre-filter is detected by a water inlet end current detection device arranged at the water inlet end of the pre-filter1The current I of the water outlet end of the pre-filter is detected by a water outlet end current detection device arranged at the water outlet end of the pre-filter2；
S3: judging whether I is present1＞n＞I2If I is1＞n＞I2Judging that the scale inhibitor still exists in the prefilter, if I1≥I2If n is greater than or equal to n, judging the filter in the prefilterFinishing the consumption of the scale inhibitor;
where n is a constant current value.
Optionally, the current detection device at the water inlet end detects the current I at the water inlet end1And the current detection device at the water outlet end and the current I at the water outlet end2The steps are as follows:
s21: measuring the conductance S of tap water which does not flow through the pre-filter in the water inlet pipe where the pre-filter is positioned1Measuring the conductance S of the tap water flowing through the pre-filter2；
S22: according to the formula: the conductance S is 1/resistance R, and the resistance R in the tap water which does not flow through the prefilter is obtained1Obtaining the resistance R in the tap water flowing through the pre-filter2；
S23: applying a constant voltage U to the water inlet end current detection device and the water outlet end current detection device;
s24: according to the formula: obtaining the current of the tap water which does not flow through the pre-filter as the current I1Obtaining the current of the tap water flowing through the pre-filter as I2。
Alternatively, in said S3, if I1＞n＞I2If so, returning to S2 after judging that the scale inhibitor still exists in the prefilter.
Alternatively, if I1≥I2And n, after the scale inhibitor in the pre-filter is judged to be completely consumed, the method also comprises the step S4: and a display operation panel of the pre-filter displays/sends out a scale inhibitor replacing signal.
Optionally, after the scale inhibitor in the pre-filter is replaced, the flow returns to S2.
The invention also provides a water heater, which comprises a water heater body and a pre-filter, wherein the pre-filter is arranged on a water inlet pipe of the water heater, the water heater adopts the above method for prompting the replacement of the scale inhibitor of the pre-filter to detect whether the scale inhibitor in the pre-filter is completely consumed, and the pre-filter comprises:
the preposed filter body is arranged on the water inlet pipe;
a scale inhibitor disposed within the pre-filter body;
the water inlet end current detection device is arranged at the water inlet end of the pre-filter body, is electrically connected with the controller of the water heater and is used for detecting the current I at the water inlet end of the pre-filter body1And transmitting the current value to the controller;
the water outlet end current detection device is arranged at the water outlet end of the pre-filter body, is electrically connected with the controller and is used for detecting the current I at the water outlet end of the pre-filter body2And delivering the current to the controller.
Optionally, the water inlet end current detection device is electrically connected with the controller through the first lead, and the water outlet end current detection device is electrically connected with the controller through the second lead.
Optionally, the water inlet end current detection device and the water outlet end current detection device have the same structure.
Optionally, the display and operation device further comprises a display and operation panel electrically connected with the controller.
Optionally, the display operation panel includes:
the display screen is used for displaying the data transmitted by the controller;
and the key is used for controlling the water heater to work.
Compared with the prior art, the invention at least comprises the following beneficial effects:
the invention obtains the real-time current of the water inlet end and the water outlet end of the pre-filter by arranging the current detection device of the water inlet end and the current detection device of the water outlet end. According to the principle that the more impurities in water are, the larger the conductance S is, the less the impurities in the water are and the larger the conductance S is, by comparing the real-time currents of the water inlet end and the water outlet end of the pre-filter, the data of the change of the impurity amount of the water inlet end and the water outlet end of the pre-filter can be obtained, and if the impurities of the water inlet end of the pre-filter are more than the impurities of the water outlet end by a preset amount, the scale inhibitor still exists in the pre-filter; if the impurities at the water outlet end of the pre-filter are close to the impurities at the water inlet end, the scale inhibitor in the pre-filter is completely consumed, so that the information whether to replace the scale inhibitor in the pre-filter is automatically obtained, and a user can replace the scale inhibitor in the pre-filter according to the information.
Drawings
FIG. 1 is a flow chart of a method for reminding replacement of a scale inhibitor of a pre-filter in an embodiment of the invention;
fig. 2 is a schematic structural diagram of a water heater in an embodiment of the invention.
In the figure:
1. a water heater body;
2. a pre-filter body; 21. a scale inhibitor;
3. a water inlet pipe;
4. a water inlet end current detection device; 41. a first conductive line;
5. a current detection device at the water outlet end; 51. a second conductive line;
6. a controller;
7. an operation panel is displayed.
Detailed Description
The present invention is illustrated by the following examples, but the present invention is not limited to these examples. Modifications to the embodiments of the invention or equivalent substitutions of parts of technical features without departing from the spirit of the invention are intended to be covered by the scope of the claims of the invention.
Referring to fig. 1 and 2, the present invention provides a method for prompting replacement of an antisludging agent of a pre-filter, comprising the following steps:
s1: starting the water heater;
s2: the current detection device 4 arranged at the water inlet end of the pre-filter detects the current I at the water inlet end of the pre-filter1A current detection device 5 arranged at the water outlet end of the pre-filter for detecting the current I at the water outlet end of the pre-filter2；
S3: judging whether I is present1＞n＞I2If I is1＞n＞I2Judging that the scale inhibitor 21 still exists in the prefilter, if I1≥I2If the scale inhibitor is more than or equal to n, judging that the scale inhibitor 21 in the pre-filter is completely consumed;
where n is a constant current value.
It should be noted that, according to actual needs, a person skilled in the art can set n to different values to adapt the prefilter antisludging agent replacement prompting method to different user requirements.
The invention obtains the real-time current of the water inlet end and the water outlet end of the pre-filter by arranging the current detection device 4 at the water inlet end and the current detection device 5 at the water outlet end. According to the principle that the more impurities in water are, the larger the conductance S is, the less the impurities in the water are and the larger the conductance S is, by comparing the real-time currents of the water inlet end and the water outlet end of the pre-filter, the data of the change of the impurity amount of the water inlet end and the water outlet end of the pre-filter can be obtained, and if the impurities of the water inlet end of the pre-filter are more than the impurities of the water outlet end by a preset amount, the scale inhibitor 21 still exists in the pre-filter; if the impurities at the water outlet end of the pre-filter are close to the impurities at the water inlet end, the scale inhibitor 21 in the pre-filter is completely consumed, so that the information whether to replace the scale inhibitor 21 in the pre-filter is automatically obtained, and a user can replace the scale inhibitor 21 in the pre-filter according to the information.
Optionally, the current detection device 4 at the water inlet end detects the current I at the water inlet end1And the current detection device 5 at the water outlet end and the current I at the water outlet end2The steps are as follows:
s21: measuring the conductance S1 of tap water which does not flow through the pre-filter in the water inlet pipe 3 where the pre-filter is positioned, and measuring the conductance S2 of the tap water which flows through the pre-filter;
s22: according to the formula: the conductance S is 1/resistance R, the resistance R1 in the tap water which does not flow through the prefilter is obtained, and the resistance R2 in the tap water which flows through the prefilter is obtained;
s23: applying a constant voltage U to the water inlet end current detection device 4 and the water outlet end current detection device 5;
s24: according to the formula: obtaining the current I as the voltage U/resistance R of tap water which does not flow through the pre-filter1Obtaining the current of tap water flowing through the pre-filter as I2。
Specifically, it was calculated that for normal tap water, the range of the conductance S of tap water that did not flow through the pre-filter was: 5X 10-3-50×10-3And S. The conductance S of the tap water flowing through the pre-filter during the optimum service time of the pre-filter is in the range: 0.1X 10-3-1.25×10-3And S. According to the formula, the conductance S is 1/resistor R, the current I is voltage U/resistor R, and constant voltage U is 12V applied to the water inlet end current detection device 4 and the water outlet end current detection device 5. According to the formula and the data, the current I of the tap water which does not flow through the pre-filter can be obtained1The range of values of (a) is: 60mA-600mA, current I of tap water flowing through pre-filter2The range of values of (a) is: 1.2mA-15 mA. And as the scale inhibitor 21 in the pre-filter is gradually consumed, the current I2Gradually increases by the value of the conductance S of tap water which does not flow through the pre-filter being 5 multiplied by 10-3S, the conductance S of tap water flowing through the pre-filter is 0.1 multiplied by 10-3For example, the current I of tap water not passing through the pre-filter can be obtained1Value of 60mA, current I of tap water flowing through the pre-filter2Is 1.2mA, the constant n value can be 1.2mA-60mA, for example, n is 40mA, when I1＞40mA＞I2In time, the scale inhibitor 21 still exists in the prefilter; when I is1≥I2When the flow rate is more than or equal to 40mA, the scale inhibitor 21 in the pre-filter is used up.
It should be noted that, because the conductance S of tap water in each region is different, that is, the conductance S of tap water that does not flow through the prefilter is different, and the filtering effects of different types of prefilters are different, the conductance S of tap water that flows through the prefilter is also different, and therefore, the value of the constant n needs to be changed accordingly, and is determined by the method described above, and details are not described here.
Alternatively, in S3, if I1＞n＞I2If so, the flow returns to S2 after determining that there is still the scale inhibitor 21 in the prefilter.
Alternatively, if I1≥I2And n, judging that the scale inhibitor 21 in the pre-filter is completely consumed, and then S4: the display operation panel 7 of the pre-filter displays/issues a "change scale inhibitor" signal to notify the user of the change of the scale inhibitor 21.
Alternatively, the flow returns to S2 after the scale inhibitor 21 in the pre-filter is replaced.
The invention provides a water heater, which comprises a water heater body 1 and a pre-filter, wherein the pre-filter is arranged on a water inlet pipe 3 of the water heater, the water heater adopts the above method for prompting the replacement of the scale inhibitor of the pre-filter to detect whether the scale inhibitor 21 in the pre-filter is completely consumed, and the pre-filter comprises a pre-filter body 2 and the scale inhibitor 21. The pre-filter body 2 is arranged on the water inlet pipe 3. The scale inhibitor 21 is arranged in the pre-filter body 2; the water inlet end current detection device 4 is arranged at the water inlet end of the pre-filter body 2, is electrically connected with the controller 6 of the water heater and is used for detecting the current I of the water inlet end of the pre-filter body 21And supplies the current value to the controller 6. The water outlet end current detection device 5 is arranged at the water outlet end of the pre-filter body 2, is electrically connected with the controller 6 and is used for detecting the current I at the water outlet end of the pre-filter body 22And supplies the current to the controller 6.
Optionally, the water inlet end current detection device 4 is electrically connected with the controller 6 through the first lead 41, and the water outlet end current detection device 5 is electrically connected with the controller 6 through the second lead 51.
Optionally, the water inlet end current detection device 4 and the water outlet end current detection device 5 are identical in structure, so that parts can be purchased and installed conveniently.
Optionally, a display operation panel is further included, and the display operation panel is electrically connected to the controller 6. Specifically, the controller 6 can transmit data detected by the water inlet end current detection device 4 and the water outlet end current detection device 5 to the display operation panel 7 and display the data on the display operation panel 7. When the controller 6 displays/sends out a signal of 'replacing the scale inhibitor' according to the display operation panel 7 of the front filter at the water inlet end, the user is informed to replace the scale inhibitor 21.
Alternatively, the display operation panel 7 includes a display screen and keys. The display screen is used for displaying data transmitted by the controller 6. The key is used for controlling the water heater to work.
What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the invention.
Claims (10)
1. A method for prompting scale inhibitor replacement of a pre-filter is characterized by comprising the following steps:
s1: starting the water heater;
s2: a water inlet end current detection device (4) arranged at the water inlet end of the pre-filter detects the current I of the water inlet end of the pre-filter1A current detection device (5) arranged at the water outlet end of the pre-filter and used for detecting the current I at the water outlet end of the pre-filter2；
S3: judging whether I is present1＞n＞I2If I is1＞n＞I2Judging that the scale inhibitor (21) still exists in the prefilter, if I1≥I2If the scale inhibitor (21) in the pre-filter is not less than n, judging that the scale inhibitor (21) in the pre-filter is completely consumed;
where n is a constant current value.
2. The method for prompting replacement of scale inhibitor for prefilter according to claim 1, wherein said current detecting means (4) for water inlet detects the current I of said water inlet1And the current detection device (5) at the water outlet end and the current I at the water outlet end2The steps are as follows:
s21: measuring the conductance S1 of tap water which does not flow through the pre-filter in the water inlet pipe (3) where the pre-filter is positioned, and measuring the conductance S2 of the tap water which flows through the pre-filter;
s22: according to the formula: the conductance S is 1/resistance R, the resistance R1 in the tap water which does not flow through the prefilter is obtained, and the resistance R2 in the tap water which flows through the prefilter is obtained;
s23: applying a constant voltage U to the water inlet end current detection device (4) and the water outlet end current detection device (5);
s24: according to the formula: obtaining the current of the tap water which does not flow through the pre-filter as the current I1Obtaining the current of the tap water flowing through the pre-filter as I2。
3. The method for prompting replacement of scale inhibitor for prefilter of claim 1 or 2 wherein in S3, if I1＞n＞I2If so, the flow returns to S2 after the scale inhibitor (21) still exists in the prefilter.
4. The method for prompting replacement of a pre-filter scale inhibitor according to claim 1 or 2, wherein if I is1≥I2And when the scale inhibitor (21) in the pre-filter is completely consumed, judging that the scale inhibitor (21) in the pre-filter is completely consumed, and further comprising S4: the display operation panel (7) of the pre-filter displays/sends out a signal of replacing the scale inhibitor.
5. The method for prompting replacement of a scale inhibitor for a pre-filter according to claim 4, wherein after the scale inhibitor (21) in the pre-filter is replaced, the flow returns to S2.
6. A water heater comprising a water heater body (1) and a pre-filter mounted on a water inlet pipe (3) of the water heater, characterized in that the water heater employs the pre-filter scale inhibitor replacement reminding method of any one of claims 1 to 5 to detect whether or not the scale inhibitor (21) in the pre-filter is consumed, the pre-filter comprising:
the front filter body (2) is arranged on the water inlet pipe (3);
a scale inhibitor (21) disposed within the pre-filter body (2);
the water inlet end current detection device (4) is arranged at the water inlet end of the pre-filter body (2) and is electrically connected with a controller (6) of the water heater, and is used for detecting the current I1 at the water inlet end of the pre-filter body (2) and transmitting the current value to the controller (6);
the water outlet end current detection device (5) is arranged at the water outlet end of the pre-filter body (2) and is electrically connected with the controller (6) and used for detecting the current I2 at the water outlet end of the pre-filter body (2) and transmitting the current to the controller (6).
7. The water heater according to claim 6, further comprising a first wire (41) and a second wire (51), wherein the water inlet end current detection device (4) is electrically connected with the controller (6) through the first wire (41), and the water outlet end current detection device (5) is electrically connected with the controller (6) through the second wire (51).
8. The water heater according to claim 7, characterized in that the water inlet end current detection device (4) and the water outlet end current detection device (5) are identical in structure.
9. The water heater according to claim 8, further comprising a display operation panel (7), wherein the display operation panel (7) is electrically connected with the controller (6).
10. A water heater according to claim 9, wherein the display operation panel (7) comprises:
the display screen is used for displaying the data transmitted by the controller (6);
and the key is used for controlling the water heater to work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110461977.3A CN113237237A (en) | 2021-04-27 | 2021-04-27 | Scale inhibitor replacement reminding method for pre-filter and water heater |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110461977.3A CN113237237A (en) | 2021-04-27 | 2021-04-27 | Scale inhibitor replacement reminding method for pre-filter and water heater |
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| CN113237237A true CN113237237A (en) | 2021-08-10 |
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Application publication date: 20210810 |
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| RJ01 | Rejection of invention patent application after publication |