CN117819620A - Filter element cleaning method and device of water purifying equipment and water purifying equipment - Google Patents
Filter element cleaning method and device of water purifying equipment and water purifying equipment Download PDFInfo
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- CN117819620A CN117819620A CN202211213425.1A CN202211213425A CN117819620A CN 117819620 A CN117819620 A CN 117819620A CN 202211213425 A CN202211213425 A CN 202211213425A CN 117819620 A CN117819620 A CN 117819620A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 263
- 238000004140 cleaning Methods 0.000 title claims abstract description 71
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Abstract
The invention provides a filter element cleaning method and device of water purifying equipment and the water purifying equipment. The filter element cleaning method comprises the following steps: according to the information of the filtered water filtered by the filter element, obtaining pollutant information in the filtered water, wherein the pollutant information comprises pollutant types; the control electrode switches between a low voltage electric field and a high frequency magnetic field depending on the contaminant species. The filter element cleaning method of the water purifying equipment provided by the invention is used for solving the defect that the filter element is not thoroughly cleaned in the prior art, and realizes the following technical effects: not only can improve scrubbing effect and scrubbing efficiency to further guaranteed the normal work of filter core and prolonged the life of filter core, can also disinfect the filtration water through electric field or magnetic field, further improved the purifying effect of filter core.
Description
Technical Field
The invention relates to the technical field of water purifying equipment, in particular to a method and a device for cleaning a filter element of water purifying equipment and the water purifying equipment.
Background
The filter element of the water purifier can effectively remove pollutants, and the filter element is gradually polluted along with the increase of the purified water quantity, so that the service life is gradually reduced. The preposed filter element is often provided with active carbon which can adsorb organic matters, remove residual chlorine, heavy metals and the like. The water passing through the front filter element can not be effectively sterilized because of no residual chlorine, and bacteria in a water path downstream of the front filter element can be gradually increased for a long time. The filter elements such as reverse osmosis, nanofiltration, ultrafiltration and the like are usually placed behind the pre-filter element, so that a large amount of microorganisms exist in the filter elements after a long time, and the microorganisms can secrete metabolites and multiply on the surface of the membrane to form a biological membrane, so that the membrane separation performance is affected. The filter elements such as reverse osmosis, nanofiltration and the like have higher replacement cost because of high price.
Disclosure of Invention
The invention provides a filter element cleaning method of water purifying equipment, which is used for solving the defect that the filter element is not thoroughly cleaned in the prior art and realizing the following technical effects: not only can improve scrubbing effect and scrubbing efficiency to further guaranteed the normal work of filter core and prolonged the life of filter core, can also disinfect the filtration water through electric field or magnetic field, further improved the purifying effect of filter core.
According to a method for cleaning a filter element of a water purifying apparatus according to an embodiment of the first aspect of the present invention, a plurality of electrodes are provided in the filter element to be adapted to form an electric field or a magnetic field in the filter element, the method comprising:
according to the information of the filtered water filtered by the filter element, obtaining pollutant information in the filtered water, wherein the pollutant information comprises pollutant types;
the electrode is controlled to switch between a low-voltage electric field and a high-frequency magnetic field according to the contaminant species.
According to one embodiment of the present invention, in the step of controlling the electrode to switch between the low-voltage electric field and the high-frequency magnetic field according to the contaminant species, specifically comprising:
determining the pollutant type as microorganism, and controlling the electrode to form a low-voltage electric field in the filter element so as to sterilize;
and determining the pollutant type as scale, and controlling the electrode to form a high-frequency magnetic field in the filter element so as to inhibit the generation of the scale.
According to one embodiment of the present invention, the step of determining the contaminant type as a microorganism and controlling the electrode to form a low-voltage electric field in the filter element to perform sterilization specifically includes:
determining the pollutant type as microorganisms, adjusting the voltage of the electrode to a set voltage range to form the low-voltage electric field, and controlling the electrode to maintain the low-voltage electric field for a first set time period according to the pollutant content information of the microorganisms in the filtered water;
wherein the contaminant content information is contained within the contaminant information.
According to one embodiment of the present invention, the step of determining that the contaminant species is scale and controlling the electrode to form a high-frequency magnetic field in the filter element to suppress the generation of scale specifically includes:
determining the pollutant type as scale, and controlling to supply alternating current within a set frequency range to the electrode so as to form the high-frequency magnetic field; controlling the electrode to maintain the high-frequency magnetic field for a second set period of time according to the pollutant content information of the scale in the filtered water;
wherein the contaminant content information is contained within the contaminant information.
According to one embodiment of the present invention, in the step of controlling the electrode to switch between the low-voltage electric field and the high-frequency magnetic field according to the contaminant species, specifically comprising:
after determining that the pollutant types are microorganisms and scale, controlling the electrode to generate a low-voltage electric field and maintaining a third set time period for sterilization based on pollutant content information of the microorganisms and the scale in filtered water respectively, and then controlling the electrode to generate a high-frequency magnetic field and maintaining a fourth set time period for inhibiting the generation of the scale;
wherein the contaminant content information is contained within the contaminant information.
According to one embodiment of the invention, before the step of controlling the switching of the electricity between the low-voltage electric field and the high-frequency magnetic field according to the contaminant species, it further comprises:
and determining that the water quantity filtered by the filter element reaches the preset water quantity, and electrifying the electrode.
According to one embodiment of the present invention, before the step of determining that the amount of water filtered by the filter element reaches the preset filtered water amount, the method further includes:
and obtaining the water inlet TDS of the filtered water, and determining the preset filtered water quantity according to the water inlet TDS.
According to an embodiment of the invention, before the step of controlling the switching of the electrode between the low voltage electric field and the high frequency magnetic field according to the contaminant species, further comprises:
and determining that the working time of the filter element reaches the preset filtering time, and electrifying the electrode.
According to one embodiment of the present invention, the step of obtaining the pollutant information in the filtered water according to the filtered water information filtered by the filter element specifically includes:
acquiring first filtered water information of the filter element in a first use state, and acquiring second filtered water information of the filter element in a current use state;
determining the pollutant type and/or the pollutant content corresponding to the pollutant type according to the comparison result of the first filtered water information and the second filtered water information;
the first filtered water information and the second filtered water information comprise the desalination rate and the water outlet flow rate of the filtered water after flowing through the filter element.
According to one embodiment of the invention, after the step of controlling the switching of the electrode between the low-voltage electric field and the high-frequency magnetic field, it further comprises:
acquiring third filtered water information of the filter element before cleaning and fourth filtered water information of the filter element after cleaning;
judging whether the water purifying equipment has cleaning faults or not according to the comparison result of the third filtered water information and the fourth filtered water information, and if the cleaning faults are determined, sending out fault reminding;
the third filtered water information and the fourth filtered water information comprise the desalination rate and the water outlet flow rate of the filtered water after flowing through the filter element.
According to a second aspect of the present invention, a filter cartridge cleaning device of a water purifying apparatus includes:
the first acquisition module is used for acquiring pollutant information in the filtered water according to the filtered water information filtered by the filter element, wherein the pollutant information comprises pollutant types;
and the first control module is used for controlling the electrode to switch between a low-voltage electric field and a high-frequency magnetic field according to the pollutant type.
According to an embodiment of the third aspect of the present invention, a water purifying apparatus includes:
a controller for executing the filter element cleaning method of the water purifying device according to the first aspect of the invention;
the filter element is provided with a water inlet, a water outlet and a filter cavity, and is provided with at least one first electrode and at least one second electrode, and the first electrode and the second electrode are suitable for forming a piezoelectric field or a high-frequency magnetic field in the filter cavity.
According to the filter element cleaning method provided by the embodiment of the invention, the electrode is controlled to form a low-voltage electric field or a high-frequency magnetic field in the filter element in a targeted manner by judging the types of pollutants contained in the filtered water filtered by the filter element, so that different pollutant types can be cleaned in a targeted manner. For example, the system performs the sterilization treatment of the electric field aiming at microorganisms or performs the scale inhibition treatment of the high-frequency magnetic field aiming at scale, so that the decontamination effect and the decontamination efficiency can be improved, the normal operation of the filter element is further ensured, the service life of the filter element is prolonged, the sterilization treatment of filtered water can be performed through the electric field or the magnetic field, the purification effect of the filter element is further improved, and the water safety of a user is ensured.
Drawings
In order to more clearly illustrate the invention or the technical solutions of the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of steps of a method for cleaning a filter element of a water purification apparatus provided by the present invention;
FIG. 2 is a schematic structural view of a filter element cleaning device of the water purifying apparatus provided by the invention;
FIG. 3 is a schematic perspective view of a cartridge assembly of a water purification apparatus provided by the present invention;
FIG. 4 is a schematic structural view of a filter element assembly of the water purifying apparatus provided by the present invention;
FIG. 5 is one of the schematic cross-sectional views of the cartridge assembly of the water purification apparatus provided by the present invention;
fig. 6 is a second schematic cross-sectional view of a filter element assembly of the water purifying apparatus provided by the present invention.
Reference numerals:
1. a filter element; 11. a filter chamber; 12. a central tube; 13. filtering a water gap; 14. a water inlet; 15. a waste water port; 21. a first electrode; 22. a second electrode; 110. a first acquisition module; 120. and a first control module.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The filter element cleaning method, the filter element cleaning device and the water purifying device of the water purifying device are described below with reference to the accompanying drawings.
It should be noted that, according to the filter element cleaning method provided by the invention, cleaning of the filter element 1 needs to be realized on the basis of a certain structure, specifically, as shown in fig. 3 to 6, the water purifying device comprises the filter element 1, the filter element 1 is provided with a water inlet 14, a water outlet and a filter cavity 11, the filter element 1 is provided with a plurality of electrodes, the plurality of electrodes can be respectively used as an electrode positive electrode and an electrode negative electrode after being electrified, and the electrode positive electrode and the electrode negative electrode form an electric field or a magnetic field in the filter cavity 11, wherein the system can control working parameters such as alternating current frequency, voltage, current, electrifying time and the like of a circuit, so that the electric field or the magnetic field generated by the electrode is switched between a low-voltage electric field and a high-frequency magnetic field quality inspection, and different pollutants can be cleaned in a targeted manner.
As shown in fig. 1, a method for cleaning a filter element of a water purifying apparatus according to an embodiment of a first aspect of the present invention, wherein at least two sets of electrodes are provided in a filter element 1 of the water purifying apparatus to be adapted to form an electric field or a magnetic field in the filter element 1, wherein each set of electrodes includes at least one electrode sheet, the method for cleaning a filter element comprising:
step 100, according to the filtered water information filtered by the filter element 1, obtaining pollutant information in the filtered water, wherein the pollutant information comprises pollutant types;
step 200, the control electrode is switched between a low voltage electric field and a high frequency magnetic field according to the contaminant species.
According to the filter element cleaning method provided by the embodiment of the invention, the electrode is controlled to form a low-voltage electric field or a high-frequency magnetic field in the filter element 1 in a targeted manner by judging the types of pollutants contained in the filtered water filtered by the filter element 1, so that different pollutant types can be cleaned in a targeted manner. For example, the system performs the sterilization treatment of the low-voltage electric field aiming at microorganisms or performs the scale inhibition treatment of the high-frequency magnetic field aiming at scale, so that not only can the pollution removal effect and the pollution removal efficiency be improved, thereby further ensuring the normal operation of the filter element 1 and prolonging the service life of the filter element 1, but also the sterilization treatment of the filtered water can be performed by the electric field or the magnetic field, further improving the purification effect of the filter element 1 and ensuring the water use safety of users.
According to some embodiments of the invention, in the step of switching the control electrode between the low-voltage electric field and the high-frequency magnetic field according to the contaminant species, specifically comprising:
determining the pollutant type as microorganism, and controlling the electrode to form a low-voltage electric field in the filter element 1 to sterilize;
the type of the pollutant is determined as scale, and the control electrode forms a high-frequency magnetic field in the filter element 1 to inhibit the generation of scale.
In the embodiment, the filter element cleaning method mainly uses a low-voltage electric field sterilization technology and a high-frequency magnetic field scale inhibition technology in a specific working process.
It is understood that the low-voltage electric field can be used for purifying the water quality bred by microorganisms (such as bacteria and algae), and the principle is that when water flows through the water processor, the ecological environment of bacteria and algae in the water changes and living strips lose death. Wherein, changing the normal electric field strength of living organism can change or affect the physiological metabolism (such as gene expression program or enzyme activity, etc.) of bacteria, thereby making the living of bacteria abnormal, which is one of the causes of bacterial death. In addition, the external electric field damages ion channels on cell membranes, and changes internal control current for regulating cell functions, thereby affecting the life of bacteria. In addition, the bacteria-containing liquid passes through the strong electric field to cause the change current to pass through the liquid, and the cells on the conductive path are killed by the impact of electrons moving at high speed, so that the aim of sterilization is fulfilled.
Furthermore, the existence of the electric field can also influence the formation of scale in water, so as to achieve the purpose of scale inhibition. The high-frequency magnetic field has the advantage of good scale prevention and removal effects, and the formation of the magnetic field can be realized through the electrification of the electrodes, so that the switching of the low-voltage electric field or the high-frequency magnetic field in the filter element 1 can be realized by applying different circuits to the electrodes, and the sterilization purpose or the scale inhibition purpose can be realized in a targeted manner.
According to the filter element cleaning method provided by the embodiment of the invention, the electrode can be in a normally open state in the working process of the filter element 1, namely, the electrode is always in an electrified state in the working process of the filter element 1, and at the moment, a user can control the formation of a low-voltage electric field or a high-frequency magnetic field by controlling the working parameters of the circuit.
Or the electrodes are in an intermittent opening state during the working process of the filter element 1, namely, when the pollutants in the filter element 1 reach a certain set condition during the working process of the filter element 1, the system electrifies the electrodes to form a low-voltage electric field or a high-frequency magnetic field. The "certain predetermined condition" may be a condition that the content of the contaminant reaches a predetermined content standard, the type of the contaminant is a predetermined type, or a combination of the two conditions, and the present invention is not particularly limited herein.
The following description will be given by taking an example of a state in which the electrode is intermittently opened during the operation of the filter cartridge 1: after determining the specific type of the contaminants contained in the filtered water of the filter cartridge 1, the electrodes are energized and the electric field or magnetic field generated by the electrodes is switched between a low voltage electric field and a high frequency magnetic field by adjusting the operating parameters of the electrodes. The working parameters of the electrode comprise parameters such as voltage, current, alternating current frequency, energization time and the like.
When the pollutant type is determined to be microorganism, the system needs to use a low-voltage electric field to sterilize at the moment, so that the working parameter mainly adjusted by the system is the voltage value of the electrode in order to ensure the generation of the low-voltage electric field in the filter element 1, the method does not limit the electrified type of the electrified electrode, namely, the electrode can be electrified with alternating current or direct current, and only the voltage value of the electrode is controlled within a set voltage range by the system.
When the pollutant is determined to be scale, the system needs to adopt a high-frequency magnetic field to inhibit the generation of the scale, so that the working parameter mainly adjusted by the system is the frequency of alternating current which is fed by the electrode in order to ensure the generation of the high-frequency magnetic field in the filter element 1, namely the electrode needs to be fed with alternating current with specific frequency at the moment, and the high-frequency magnetic field is generated in the filter element 1.
It should be further noted that in the practical application process, the contaminants contained in the filtered water are often not at least one component, but are composite contaminants composed of a plurality of different types of contaminants, for example, in the case that the filtered water contains microorganisms and scale at the same time, because the system needs to use a low-voltage electric field and a high-frequency magnetic field to achieve the purposes of sterilizing and inhibiting scale respectively at this time, the electrode needs to be supplied with an alternating current, and then the system is switched to the low-voltage electric field by adjusting the voltage and is switched to the high-frequency magnetic field by adjusting the frequency of the alternating current.
According to some embodiments of the invention, in addition to the information of the contaminant species, the information of the contaminant content corresponding to the contaminant species is included in the contaminant information. The system can determine the continuous electrifying time of the electrode according to the pollutant content occupied by the pollutant in the filtered water, and control the electrode to electrify in the continuous electrifying time so as to maintain the continuous sterilization of the low-voltage electric field in the continuous electrifying time or maintain the continuous scale inhibition of the high-frequency magnetic field in the continuous electrifying time.
In this way, the sterilization time or scale inhibition time of the electrode is determined by the content of the pollutants, so that the cleaning process of the filter element 1 can be monitored and controlled more accurately, the waste of electric energy is avoided, and the energy is saved and the cost is reduced.
In one embodiment of the present invention, the step of determining the contaminant species as microorganisms and controlling the electrode to form a low-voltage electric field in the filter element 1 to sterilize specifically includes:
determining the type of the pollutants as microorganisms, adjusting the voltage of the electrode to a set voltage range to form a low-voltage electric field, and controlling the electrode to maintain the low-voltage electric field for a first set time period according to the pollutant content information of the microorganisms in the filtered water.
In this embodiment, the set voltage range typically employs a voltage range below 36V, for example, determining the contaminant species to be a microorganism, adjusting the voltage of the electrode to 36V or less and maintaining the first set period of time.
It will be appreciated that the greater the ratio of the microorganism content in the filtered water, the greater the specific value of the first set period; the smaller the ratio of the microorganism content in the filtered water, the smaller the specific value of the first set period.
In another embodiment of the present invention, the step of determining the contaminant species as scale and controlling the electrode to form a high frequency magnetic field in the filter element 1 to suppress the generation of scale specifically includes:
determining the pollutant type as scale, and controlling to supply alternating current within a set frequency range to the electrode to form a high-frequency magnetic field; and controlling the electrode to maintain the high-frequency magnetic field for a second set period of time according to the pollutant content information of the scale in the filtered water.
In this embodiment, the set frequency range generally refers to an alternating current frequency range in which the magnetic field range is controlled to 6000Hz or more, for example, the contaminant species is determined to be microorganisms, and alternating current is supplied to the electrodes so that the magnetic field frequency is 6000Hz or more, and the second set period of time is maintained.
It will be appreciated that the greater the specific value of the second set period of time, the greater the ratio of scale in the filtered water; the smaller the ratio of the scale content in the filtered water, the smaller the specific value of the second set period.
In yet another embodiment of the present invention, in the step of switching the control electrode between the low-voltage electric field and the high-frequency magnetic field according to the kind of the contaminant, specifically, it includes:
after determining that the pollutant types are microorganisms and scale, based on the pollutant content information of the microorganisms and the scale in the filtered water, controlling the electrode to generate a low-voltage electric field and maintain a third set time period for sterilization, and then controlling the electrode to generate a high-frequency magnetic field and maintain a fourth set time period for inhibiting the generation of scale.
In this embodiment, when the contaminants in the filtered water contain both microorganisms and scale, since the microorganisms are easily destroyed by the high-frequency electric field and the scale is only inhibited from being generated by the high-frequency magnetic field, the system needs to preferentially sterilize the microorganisms by using the high-frequency electric field, and then extend the duration of the high-frequency magnetic field to perform continuous and uninterrupted scale inhibition operation. Therefore, the filter element 1 can be cleaned more efficiently by preferentially treating microorganisms and then performing scale inhibition treatment, and the cleaning and purifying effects of the system on the filter element 1 and filtered water are ensured.
In a specific embodiment, when the pollutant types are determined to be microorganisms and scale, after the system supplies alternating current to the electrodes, firstly, adjusting the voltage of the electrodes to be less than 36V and maintaining the voltage for a third set period of time, so that the electric field is sterilized within the third set period of time, and then adjusting the frequency of the alternating current to enable the frequency of the magnetic field to be above 6000HZ and maintaining the frequency of the alternating current for a fourth set period of time, so that the high-frequency magnetic field inhibits the generation of scale within the fourth set period of time.
The above embodiment is to realize irregular intelligent cleaning by monitoring the specific content of the pollutants in the filter element 1, and the filter element cleaning method provided by the invention can also preset a specific cleaning frequency and periodically clean the filter element 1 according to the cleaning frequency, and specific embodiments will be described below. It should be noted that, the following embodiments of periodic cleaning of the filter element 1 may be combined with the above embodiments of determining the type of the contaminant to switch the low-voltage electric field or the high-frequency magnetic field, that is, the controller may use a specific electric field or magnetic field type to perform periodic cleaning of the filter element 1 according to a specific cleaning frequency after determining the specific type of the contaminant.
In one embodiment, the controller may clean the filter element 1 once at regular intervals of water filtration, and specifically, the step of controlling the flow of the cleaning agent through and cleaning the filter element 1 includes: and determining that the water quantity filtered by the filter element 1 reaches the preset water quantity, and electrifying the electrode.
The implementation steps proposed in this embodiment are generally applicable to the scenario where the contaminant species is scale, because scale formation is closely related to the TDS of the filtered water and the total amount of water filtered. The type of electric field or magnetic field formed in the cartridge 1 at this time is a high frequency magnetic field.
The preset filtered water volume can be obtained by the following steps: and obtaining the water inlet TDS of the filtered water, and determining the preset filtered water amount according to the water inlet TDS. For example, the controller obtains the TDS of the filtered water based on the sensor module, and substitutes the TDS value into the water consumption corresponding to different TDS ranges (the relationship between the TDS range and the water consumption can be obtained according to experiments or experience), so as to determine the specific size of the preset filtered water.
Of course, the specific size of the preset filtered water amount is not particularly limited, and the preset filtered water amount can be obtained according to the default setting of the system or the user can set the preset filtered water amount by himself.
In another embodiment, the controller may clean the filter element 1 once at regular filtering time intervals, specifically, the step of controlling the detergent to flow through and clean the filter element 1 includes: and determining that the working time of the filter element 1 reaches the preset filtering time, and electrifying the electrode.
The implementation procedure proposed in this embodiment is generally suitable for the scenario where the contaminant species are microorganisms, because the formation of microorganisms is closely related to factors such as time, and the type of electric field or magnetic field formed in the filter element 1 is a piezoelectric field. In addition, the specific size of the preset filtering duration is not particularly limited, and the preset filtering duration can be obtained according to default settings of the system or can be obtained by self-setting of a user.
According to some embodiments of the present invention, the "filtered water information" in the "filtered water information filtered according to the filter element 1" in step 100 may include information such as the inlet water TDS, the outlet water TDS, the inlet water flow, the outlet water flow, and the water temperature of the filtered water, and the "pollutant information" may include information such as pollutant type and pollutant content. Specifically, the controller can obtain the pollutant information by analyzing and calculating the filtered water information.
According to one embodiment of the present invention, the step of obtaining the information of the pollutants remained in the filter element 1 according to the information of the filtered water filtered by the filter element 1 specifically comprises the following steps:
acquiring first filtered water information of the filter element 1 in a first use state, and acquiring second filtered water information of the filter element 1 in a current use state;
determining a contaminant type and/or a contaminant content corresponding to the contaminant type based on a comparison of the first filtered water information and the second filtered water information;
wherein, the first filtered water information and the second filtered water information comprise the desalination rate and the water outlet flow rate of the filtered water after flowing through the filter element 1. In addition, the first filtered water information and the second filtered water information may each include information such as water temperature, and are not particularly limited herein.
In this embodiment, the first filtered water information may indirectly represent an ideal working state of the filter element 1 in an unblocked (e.g., first use of the filter element 1), and the second filtered water information indirectly represents a current working state of the filter element 1 after the blocking occurs, so that the controller may determine a pollutant type and a blocking degree of the filter element 1 in the current working state by comparing, analyzing, calculating, etc. the first filtered water information and the second filtered water information, and the blocking degree of the filter element 1 may indirectly reflect the pollutant content.
It can be understood that taking the water outlet flow as an example, the water outlet flow can reflect the blocking degree of the filter element 1, specifically, if the water outlet flow value in the first filtered water information is basically the same as the water outlet flow value in the second filtered water information under the condition that the water inlet flow is the same, it is proved that the filter element 1 is not blocked in the current working state, that is, the pollutant content is lower; if the water inflow is the same, the water outflow value in the first filtered water information is larger than the water outflow value in the second filtered water information, so that the filter element 1 is proved to be blocked in the current working state, namely, the pollutant content is higher. In particular, if the difference between the outlet water flow rate value in the second filtered water information and the outlet water flow rate value in the first filtered water information is larger, the more serious the clogging degree of the filter element 1 is proved, that is, the higher the pollutant content is.
The specific analysis of the process of determining the type of the contaminant is similar to the principle of the process of determining the degree of clogging described above, and will not be described in detail herein.
According to one embodiment of the present invention, the filter element cleaning method of the water purifying apparatus further includes:
acquiring third filtered water information of the filter element 1 before cleaning and fourth filtered water information of the filter element 1 after cleaning;
judging whether the water purifying equipment has cleaning faults or not according to the comparison result of the third filtered water information and the fourth filtered water information, and if the cleaning faults are determined to occur, sending out fault reminding;
wherein, the third filtered water information and the fourth filtered water information comprise the desalination rate and the water outlet flow of the filtered water after flowing through the filter element 1. In addition, the third filtered water information and the fourth filtered water information may each include information such as water temperature, and are not particularly limited herein.
In this embodiment, the third filtered water information may indirectly represent the working state of the filter element 1 before cleaning, and the second filtered water information indirectly represents the working state of the filter element 1 after cleaning, so that the controller may determine whether the current cleaning process of the filter element 1 is effective by comparing, analyzing and calculating the first filtered water information and the second filtered water information, and if it is determined that the current cleaning process of the filter element 1 is ineffective, determine that the cleaning failure occurs in the water purifying apparatus, and at this time, the alarm device may issue a failure alert to remind a user to timely repair and check the water purifying apparatus, where the alarm device may be installed inside the water purifying apparatus or on a remote console, without special limitation.
It can be understood that taking the water outlet flow as an example, the water outlet flow can reflect the blocking degree of the filter element 1, specifically, if the water outlet flow value in the third filtered water information is smaller than the water outlet flow value in the fourth filtered water information under the condition that the water inlet flow is the same, the current cleaning process of the filter element 1 is proved to be effective (i.e. the water purifying equipment has no cleaning fault); if the water inflow is the same, the water outflow value in the first filtered water information is basically the same as the water outflow value in the second filtered water information, and the current cleaning process of the filter element 1 is proved to be invalid (namely, the water purifying equipment has cleaning faults), and the alarm device can send out fault reminding.
The filter element cleaning device of the water purifying device provided by the invention is described below, and the filter element cleaning device and the filter element cleaning method described above can be correspondingly referred to each other.
As shown in fig. 2, a cartridge cleaning device of a water purifying apparatus according to an embodiment of a second aspect of the present invention includes:
a first obtaining module 110, configured to obtain, according to the information of the filtered water filtered by the filter element 1, information of contaminants in the filtered water, where the information of contaminants includes a type of contaminants;
the first control module 120 is used for controlling the electrode to switch between the low-voltage electric field and the high-frequency magnetic field according to the pollutant type.
The water purifying apparatus according to the embodiment of the third aspect of the present invention includes a controller and a filter cartridge 1.
The controller is used for executing the filter element cleaning method of the water purifying device of the first aspect of the invention. The filter element 1 is formed with a water inlet 14, a water outlet and a filter cavity 11, and the filter element 1 is provided with at least two groups of electrodes which are suitable for forming a piezoelectric field or a high-frequency magnetic field in the filter cavity 11.
As shown in fig. 3 to 6, the cartridge assembly of the water purifying apparatus according to the embodiment of the first aspect of the present invention includes the cartridge 1 and the first and second electrodes 21 and 22.
The filter element 1 is provided with a water inlet 14, a water outlet and a filter cavity 11, and the water inlet 14 and the water outlet are respectively communicated with the filter cavity 11. The first electrode 21 and the second electrode 22 are mounted to the filter cartridge 1, the first electrode 21 and the second electrode 22 being adapted to generate a low-voltage or high-frequency magnetic field within the filter chamber 11.
The first electrode 21 and the second electrode 22 each include a plurality of electrode plates, and the first electrode 21 and the second electrode 22 are connected with a power supply circuit, and after the power supply is turned on, the first electrode 21 and the second electrode 22 are divided into a positive electrode and a negative electrode according to the flowing sequence of current, so that an electric field and a magnetic field are generated inside the filter element 1, and an effect of sterilizing or inhibiting scale generation is achieved.
According to the filter element assembly provided by the embodiment of the invention, the first electrode 21 and the second electrode 22 can form a low-voltage electric field or a high-frequency magnetic field in the filter element 1, wherein the first electrode 21 and the second electrode 22 can generate a low-voltage electric field for microorganisms and perform sterilization treatment or generate a high-frequency magnetic field for scale and perform scale inhibition treatment, so that the pollution removal effect and the pollution removal efficiency can be improved, the normal operation of the filter element 1 is further ensured, the service life of the filter element 1 is prolonged, the filtered water can be subjected to sterilization treatment through an electric field and a magnetic field, the purification effect of the filter element 1 is further improved, and the water safety of a user is ensured.
Wherein, the low-voltage electric field refers to a low-voltage electric field with voltage lower than 36V, and the high-frequency magnetic field refers to a magnetic field with frequency higher than 6000 Hz.
According to some embodiments of the present invention, the electrode sheets in the first electrode 21 and the second electrode 22 are made of conductive materials, and the electrode sheets may be formed in the shape of electrode sheets, electrode meshes, electrode tubes, electrode blocks, electrode bars, electrode wires, or the like, and the present invention is not particularly limited herein.
As shown in fig. 5 and 6, according to an embodiment of the present invention, a central tube 12 is disposed in the filter chamber 11, one end of the central tube 12 is connected to the filter nozzle 13, and the other end of the central tube 12 is connected to the filter chamber 11.
As shown in fig. 5 and 6, according to an embodiment of the present invention, the center tube 12 extends in the height direction of the filter cartridge 1, and the other end of the center tube 12 is spaced apart from the bottom wall of the filter chamber 11.
As shown in fig. 5, according to an embodiment of the present invention, the first electrode 21 is attached to the outer peripheral wall and/or the inner peripheral wall of the central tube 12, and the second electrode 22 is attached to the inner peripheral wall of the filter element 1.
Thus, the first electrode 21 mounted on the central tube 12 and the second electrode 22 mounted on the inner peripheral wall of the filter element 1 can form an electric field and a magnetic field covering the filter chamber 11, thereby improving the effects of sterilization and scale inhibition.
According to another embodiment of the invention, the first electrode 21 is formed integrally with the central tube 12 and the second electrode 22 is formed integrally with the circumferential side wall of the cartridge 1.
In the present embodiment, the center tube 12 itself forms one of the positive electrode and the negative electrode, and the peripheral wall of the filter element 1 forms the other of the positive electrode and the negative electrode, unlike the previous embodiment, so that the assembling process of the first electrode 21 and the second electrode 22 is omitted, and the assembling cost is reduced.
As shown in fig. 6, according to one embodiment of the present invention, the first electrode 21 is attached to the top wall of the filter element 1 and is located in the filter cavity 11, and the second electrode 22 is attached to the bottom wall of the filter element 1 and is located in the filter cavity 11.
Thus, the first electrode 21 positioned at the top end of the filter chamber 11 and the second electrode 22 positioned at the bottom end of the filter chamber 11 can form an electric field and a magnetic field covering the filter chamber 11, thereby improving sterilizing and scale inhibiting effects.
According to another embodiment of the invention, the first electrode 21 is integral with the top wall of the cartridge 1 and the second electrode 22 is integral with the bottom wall of the cartridge 1.
In this embodiment, the top wall of the filter element 1 itself forms one of the positive electrode and the negative electrode, and the bottom wall of the filter element 1 forms the other of the positive electrode and the negative electrode, unlike the previous embodiment, so that the assembly process of the first electrode 21 and the second electrode 22 is omitted, and the assembly cost is reduced.
According to one embodiment of the invention, the first electrode 21 and the second electrode 22 each comprise a number of electrode pads; the filter element 1 is a reverse osmosis filter element 1, the reverse osmosis filter element 1 is formed by winding a plurality of membrane bags along a central tube 12, wherein electrode plates are arranged between every two adjacent membrane bags. The reverse osmosis cartridge 1 is repeatedly stacked in the order of the membrane bag, the first electrode 21, the membrane bag, the second electrode 22, and the membrane bag.
The structure of the prior reverse osmosis membrane is formed by winding a plurality of membrane bags along a central tube 12, concentrated water diversion isolation net is arranged between the adjacent membrane bags, and one membrane bag consists of two membranes and a produced water collection isolation net between the two membranes. In this embodiment, the dense water backflow separation net in the existing reverse osmosis membrane structure is replaced by the first electrode 21 and the second electrode 22 (for example, conductive electrode plates/nets), so that the purpose of forming an electric field and a magnetic field in the filter cavity 11 can be achieved.
As shown in fig. 4, the water outlet includes a filter water port 13 and a waste water port 15, both communicating with the filter chamber 11, according to one embodiment of the present invention.
As shown in fig. 3 to 6, the water purifying apparatus according to the second aspect of the present invention includes the filter element assembly of the water purifying apparatus described in the first aspect of the present invention, and further includes an apparatus body, wherein the filter element 1 is mounted to the apparatus body.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (12)
1. A method for cleaning a filter element of a water purifying device, characterized in that a plurality of electrodes are arranged in the filter element so as to be suitable for forming an electric field or a magnetic field in the filter element;
the method comprises the following steps:
obtaining the information of filtered water filtered by a filter element, and obtaining the information of pollutants in the filtered water, wherein the information of the pollutants comprises the types of the pollutants;
the electrode is controlled to switch between a low-voltage electric field and a high-frequency magnetic field according to the contaminant species.
2. The method for cleaning a filter cartridge of a water purification apparatus according to claim 1, wherein in the step of controlling the electrode to switch between a low-voltage electric field and a high-frequency magnetic field according to the kind of the contaminant, specifically comprising:
determining the pollutant type as microorganism, and controlling the electrode to form a low-voltage electric field in the filter element so as to sterilize;
and determining the pollutant type as scale, and controlling the electrode to form a high-frequency magnetic field in the filter element so as to inhibit the generation of the scale.
3. The method for cleaning a filter cartridge of a water purification apparatus according to claim 2, wherein the step of determining the contaminant species as microorganisms and controlling the electrode to form a low-voltage electric field in the filter cartridge to sterilize comprises:
determining the pollutant type as microorganisms, adjusting the voltage of the electrode to a set voltage range to form the low-voltage electric field, and controlling the electrode to maintain the low-voltage electric field for a first set time period according to the pollutant content information of the microorganisms in the filtered water;
wherein the contaminant content information is contained within the contaminant information.
4. The method for cleaning a filter element of a water purification apparatus according to claim 2, wherein the step of determining that the contaminant species is scale, controlling the electrode to form a high-frequency magnetic field in the filter element to suppress the generation of scale, specifically comprises:
determining the pollutant type as scale, and controlling to supply alternating current within a set frequency range to the electrode so as to form the high-frequency magnetic field; controlling the electrode to maintain the high-frequency magnetic field for a second set period of time according to the pollutant content information of the scale in the filtered water;
wherein the contaminant content information is contained within the contaminant information.
5. The method for cleaning a filter cartridge of a water purification apparatus according to claim 1, wherein in the step of controlling the electrode to switch between a low-voltage electric field and a high-frequency magnetic field according to the kind of the contaminant, specifically comprising:
after determining that the pollutant types are microorganisms and scale, controlling the electrode to generate a low-voltage electric field and maintaining a third set time period for sterilization based on pollutant content information of the microorganisms and the scale in filtered water respectively, and then controlling the electrode to generate a high-frequency magnetic field and maintaining a fourth set time period for inhibiting the generation of the scale;
wherein the contaminant content information is contained within the contaminant information.
6. The method for cleaning a filter cartridge of a water purification apparatus according to claim 1, further comprising, before the step of controlling the electrode to switch between a low-voltage electric field and a high-frequency magnetic field according to the kind of the contaminant:
and determining that the water quantity filtered by the filter element reaches the preset water quantity, and electrifying the electrode.
7. The method for cleaning a filter cartridge of a water purification apparatus according to claim 6, further comprising, before the step of determining that the amount of water filtered by the filter cartridge reaches a preset filtered water amount:
and obtaining the water inlet TDS of the filtered water, and determining the preset filtered water quantity according to the water inlet TDS.
8. The method for cleaning a filter cartridge of a water purification apparatus according to claim 1, further comprising, before the step of controlling the electrode to switch between a low-voltage electric field and a high-frequency magnetic field according to the kind of the contaminant:
and determining that the working time of the filter element reaches the preset filtering time, and electrifying the electrode.
9. The method for cleaning a filter element of a water purification apparatus according to any one of claims 1 to 8, wherein the step of acquiring the information of the contaminants in the filtered water based on the information of the filtered water filtered by the filter element specifically comprises:
acquiring first filtered water information of the filter element in a first use state, and acquiring second filtered water information of the filter element in a current use state;
determining the pollutant type and/or the pollutant content corresponding to the pollutant type according to the comparison result of the first filtered water information and the second filtered water information;
the first filtered water information and the second filtered water information comprise the desalination rate and the water outlet flow rate of the filtered water after flowing through the filter element.
10. The method for cleaning a filter cartridge of a water purification apparatus according to any one of claims 1 to 8, further comprising, after the step of controlling the electrode to switch between a low-voltage electric field and a high-frequency magnetic field:
acquiring third filtered water information of the filter element before cleaning and fourth filtered water information of the filter element after cleaning;
judging whether the water purifying equipment has cleaning faults or not according to the comparison result of the third filtered water information and the fourth filtered water information, and if the cleaning faults are determined, sending out fault reminding;
the third filtered water information and the fourth filtered water information comprise the desalination rate and the water outlet flow rate of the filtered water after flowing through the filter element.
11. A cartridge cleaning device for a water purification apparatus, comprising:
the first acquisition module is used for acquiring pollutant information in the filtered water according to the filtered water information filtered by the filter element, wherein the pollutant information comprises pollutant types;
and the first control module is used for controlling the electrode to switch between a low-voltage electric field and a high-frequency magnetic field according to the pollutant type.
12. A water purification apparatus, comprising:
a controller for performing the cartridge cleaning method of the water purifying apparatus of any one of claims 1 to 10;
the filter element is provided with a water inlet, a water outlet and a filter cavity, and is provided with at least one first electrode and at least one second electrode, and the first electrode and the second electrode are suitable for forming a piezoelectric field or a high-frequency magnetic field in the filter cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211213425.1A CN117819620A (en) | 2022-09-29 | 2022-09-29 | Filter element cleaning method and device of water purifying equipment and water purifying equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211213425.1A CN117819620A (en) | 2022-09-29 | 2022-09-29 | Filter element cleaning method and device of water purifying equipment and water purifying equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117819620A true CN117819620A (en) | 2024-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211213425.1A Pending CN117819620A (en) | 2022-09-29 | 2022-09-29 | Filter element cleaning method and device of water purifying equipment and water purifying equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117819620A (en) |
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2022
- 2022-09-29 CN CN202211213425.1A patent/CN117819620A/en active Pending
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