Filter element cleaning method of water purifier, electronic equipment and water purifier

Abstract

The invention belongs to the field of water purifiers, and provides a filter element cleaning method of a water purifier, electronic equipment and the water purifier. The method comprises the following steps: acquiring the water flow of a filter element in a water purification process; according to whether the water flow of the filter element is within a preset water flow threshold range or not, whether an ultrasonic device is operated to clean the filter element or not is determined, and the ultrasonic device is used for cleaning the filter element through ultrasonic waves; wherein the water flow threshold range comprises a lower limit value and an upper limit value, the lower limit value is a threshold value indicating that the interior of the filter element is abnormal, and the upper limit value is a threshold value indicating that impurities in the filter element exceed the standard. By adopting the embodiment of the invention, water resources can be saved in the cleaning process of the filter element, and the cleaning effect and the cleaning safety of the filter element are improved.

Description

Technical Field

[0001] The present application relates to the field of water purification, and in particular to a filter element cleaning method for a water purifier, an electronic device and a water purifier. Background Art

[0002] In the field of water purification, filter cleaning is one of the core functions of water purifiers and is also the key to ensuring that all parameters of water quality are good. Conventional filter cleaning uses water to flush (wash) the filter to clean the dirt and impurities on the surface of the filter. However, this method will cause a certain amount of water waste, and the cleaning effect is limited when the water pressure is insufficient. Summary of the invention

[0003] Based on this, it is necessary to provide a filter cleaning method, electronic equipment and water purifier for a water purifier in response to the above-mentioned technical problems, so as to solve the problems of water resource waste and poor cleaning effect.

[0004] In a first aspect, an embodiment of the present application provides a method for cleaning a filter element of a water purifier, the method comprising:

[0005] Obtaining the water flow rate of the filter element during the water purification process;

[0006] Determining whether to operate an ultrasonic device to clean the filter element according to whether the water flow rate of the filter element is within a preset water flow rate threshold range, wherein the ultrasonic device is used to clean the filter element using ultrasonic waves;

[0007] The water flow threshold range includes a lower limit value and an upper limit value, wherein the lower limit value is a limit value indicating abnormality inside the filter element, and the upper limit value is a limit value indicating that impurities in the filter element exceed the standard.

[0008] In combination with the first aspect, in an optional implementation, obtaining the water flow of the filter element during the water purification process includes:

[0009] The real-time water flow of the filter element during the water purification process is obtained through a flow sensor.

[0010] In combination with the first aspect, in an optional implementation, determining whether to operate an ultrasonic device to clean the filter element according to whether the water flow of the filter element is within a preset water flow threshold range includes:

[0011] If the water flow rate of the filter element is within the water flow rate threshold range, starting to operate the ultrasonic device while stopping water from entering the filter element;

[0012] If the water flow rate of the filter element is less than the lower limit of the water flow rate threshold range, the ultrasonic device is not started;

[0013] If the water flow rate of the filter element is greater than the upper limit value of the water flow rate threshold range, the ultrasonic device is not started.

[0014] In combination with the first aspect, in an optional implementation manner, the method further includes:

[0015] When the water flow rate of the filter element is less than the lower limit value of the water flow rate threshold range, a reminder message of abnormality inside the filter element is output.

[0016] In combination with the first aspect, in an optional implementation manner, the method further includes:

[0017] In the case of determining to operate the ultrasonic device, determining the operating time of the ultrasonic device according to the water flow rate, the lower limit value, the upper limit value and the reference time;

[0018] The closer the water flow rate is to the lower limit value, the longer the operation time is, and the closer the water flow rate is to the upper limit value, the shorter the operation time is.

[0019] In combination with the first aspect, in an optional implementation manner, the method further includes:

[0020] After the operation of the ultrasonic device is finished, obtaining the updated water flow of the filter element during the water purification process;

[0021] Whether to operate an ultrasonic device to clean the filter element is determined according to whether the renewal water flow of the filter element is within the preset water flow threshold range.

[0022] In combination with the first aspect, in an optional implementation manner, the method further includes:

[0023] In the case where it is determined to operate the ultrasonic device, during the operation of the ultrasonic device, the temperature of the filter element is detected;

[0024] Whether to terminate the operation of the ultrasonic device is determined according to whether the temperature of the filter element exceeds a temperature threshold.

[0025] In a second aspect, an embodiment of the present application provides an electronic device, the electronic device comprising:

[0026] Memory, for storing computer instructions;

[0027] A processor is used to call and execute the computer instructions to implement the method provided in the first aspect of the embodiment of the present application.

[0028] In a third aspect, an embodiment of the present application provides a water purifier, which includes the electronic device of the second aspect of the embodiment of the present application, or the water purifier adopts the method of the first aspect of the embodiment of the present application.

[0029] In conjunction with the third aspect, in an optional implementation, the water purifier includes:

[0030] A flow sensor for detecting the water flow of the filter element during water purification;

[0031] The ultrasonic device is used to clean the filter element using ultrasonic waves.

[0032] The use of the embodiments of the present application is beneficial to saving water resources during the filter element cleaning process, improving the cleaning effect and the safety of the filter element cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0034] Figure 1 It is a flow chart of a filter element cleaning method of a water purifier provided according to an embodiment of the present application;

[0035] Figure 2 It is a concise schematic diagram of a water purifier provided according to an embodiment of the present application;

[0036] Figure 3 It is a flow chart of a filter element cleaning method for a water purifier provided according to an embodiment of the present application. DETAILED DESCRIPTION

[0037] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all couplings of one or more related listed items.

[0039] It can be understood that the terms "first", "second", etc. used in the present application can be used in this article to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish the first element from another element.

[0040] In a water purifier, the filter element is the key to ensuring healthy water quality. Conventional filter element cleaning uses water to flush (wash) the filter element to clean the dirt and impurities on the surface of the filter element. However, this method will cause a certain amount of water waste, and the cleaning effect is limited when the water pressure is insufficient.

[0041] Based on this, the embodiment of the present application provides a filter element cleaning method for a water purifier to save water resources and improve the cleaning effect. Figure 1 The filter element cleaning method of the water purifier includes the following processing process.

[0042] S100: Obtaining the water flow rate of the filter element during the water purification process.

[0043] By adopting this embodiment, the water flow rate of the filter element can be obtained in real time during the operation of the water purifier. The water flow rate can be a value obtained in real time or an average value of the water flow rate in a predetermined time period before the current moment.

[0044] S102: Determine whether to operate an ultrasonic device to clean the filter element according to whether the water flow rate of the filter element is within a preset water flow rate threshold range.

[0045] In this embodiment, the water flow threshold range includes a lower limit value and an upper limit value, the lower limit value is a limit value indicating abnormality inside the filter element, and the upper limit value is a limit value indicating excessive impurities in the filter element.

[0046] Exemplarily, the abnormality inside the filter element includes a cavity inside the filter element. For example, the water path of the water purifier may be blocked or leaking, resulting in a cavity inside the filter element, and the water flow rate will be significantly lower than the normal value.

[0047] For example, the impurities in the filter element exceed the standard, which may be caused by poor water quality, the filter element working for too long, etc.

[0048] By adopting the method provided in this embodiment, on the one hand, an ultrasonic device is used to clean the filter element, which greatly saves water resources and improves the cleaning effect compared to the traditional method of flushing the filter element with water flow; on the other hand, when determining whether to start / operate the ultrasonic device, the upper limit value and the lower limit value are used to comprehensively consider the content of impurities in the filter element and the abnormal conditions inside the filter element, thereby ensuring the safety and reliability of ultrasonic cleaning.

[0049] Optionally, in one implementation of this embodiment, the real-time water flow of the filter element during the water purification process is obtained by a flow sensor. The flow sensor can be installed on the waterway corresponding to the filter element to detect the flow rate (or flow velocity) of the water flow. For example, the flow sensor is installed on the water inlet waterway of the filter element.

[0050] Optionally, in an implementation of this embodiment, S102 may include the following tilts:

[0051] Scenario 1: If the water flow rate of the filter element is within the water flow rate threshold range, the ultrasonic device is started to operate while stopping the water supply to the filter element. In this case, it can be identified that there is no abnormality inside the filter element but the impurities in the filter element exceed the standard, and then the ultrasonic device is operated to clean the filter element.

[0052] Scenario 2: If the water flow rate of the filter element is less than the lower limit of the water flow rate threshold range, the ultrasonic device is not activated. In this case, the abnormal situation inside the filter element can be identified, and the operation of the ultrasonic device can be avoided to ensure safety and reliability. Because there is no water inside the filter element or the water channel is blocked or leaking, blindly starting the ultrasonic device at this time will cause the filter element temperature to rise, and in severe cases, it will damage the filter element assembly.

[0053] Scenario 3: If the water flow rate of the filter element is greater than the upper limit of the water flow rate threshold range, the ultrasonic device is not started. In this case, it can be identified that the impurities in the filter element do not exceed the standard, and it can be determined that there is no need to run the ultrasonic impurities, or that the cleaning effect of the previous cleaning process (if any) meets the standard.

[0054] Optionally, in the second scenario, a warning message of abnormality inside the filter element may be output to facilitate timely processing by the user, for example, by sound, light, electricity, etc.

[0055] Optionally, in an implementation of this embodiment, when determining to operate the ultrasonic device, the operating time of the ultrasonic device can be determined according to the water flow rate, the lower limit value, the upper limit value and the reference time. The closer the water flow rate is to the lower limit value, the longer the operating time is, and the closer the water flow rate is to the upper limit value, the shorter the operating time is. The reference time can be obtained through experiments, for example, the reference time can be the time required to rise from the lower limit value to the upper limit value determined through experiments.

[0056] By adopting the method provided in this embodiment, by calculating the operating time of the ultrasonic device, the cleaning effect can be guaranteed, and it is also beneficial to avoid repeated cleaning or excessive cleaning time, thereby saving electricity and water resources, extending the life of the device, and being green and environmentally friendly.

[0057] Optionally, in one implementation of the present embodiment, after the operation of the ultrasonic device is completed, the updated water flow rate (for example, real-time water flow rate) of the filter element during the water purification process is obtained. According to whether the updated water flow rate of the filter element is within the preset water flow threshold range, it is determined whether to run the ultrasonic device to clean the filter element. In other words, it is determined whether the water flow rate after the operation of the ultrasonic device is completed exceeds the upper limit value. If it exceeds the upper limit value, it means that the cleaning effect meets the standard. Otherwise, it does not meet the standard and the ultrasonic device needs to be re-operated. In the case of re-operating the ultrasonic device, the operating time of the ultrasonic device can be determined based on the updated water flow rate, the lower limit value, the upper limit value and the reference time.

[0058] Optionally, in an implementation of this embodiment, the method further includes: in the case of determining to operate the ultrasonic device, detecting the temperature of the filter element during the operation of the ultrasonic device, and determining whether to terminate the operation of the ultrasonic device according to whether the temperature of the filter element exceeds a temperature threshold.

[0059] For example, a temperature sensor for detecting the temperature of the filter element is provided on the outer side wall of the filter element, and the temperature of the filter element is determined by the temperature sensor. If the temperature of the filter element exceeds the temperature threshold, it means that the temperature of the filter element is too high, which may cause damage to the filter element, and the ultrasonic device needs to be stopped. In this case, the user can also be reminded by means of sound, light and electricity to pay attention to possible abnormalities in the filter element (for example, internal cavities, etc.). If the temperature of the filter element does not exceed the temperature threshold, it means that there is no abnormality in the filter element and ultrasonic cleaning can continue.

[0060] The present application also provides an electronic device, including a memory and a processor. The memory is used to store computer instructions; the processor is used to call and execute the computer instructions to implement the method provided in the present application. For a detailed description of the processing performed by the processor, please refer to the above text, which will not be repeated here.

[0061] For example, the electronic device may be an electronic device such as an integrated chip, a PCB board, etc. These electronic devices may be integrated in the water purifier to realize its functions.

[0062] The embodiment of the present application also provides a water purifier, which includes the electronic device provided by the embodiment of the present application, or the water purifier adopts the method provided by the method embodiment of the present application.

[0063] Optionally, in an implementation of this embodiment, the water purifier includes a flow sensor for detecting the water flow of the filter element during the water purification process; and the ultrasonic device for cleaning the filter element using ultrasonic waves.

[0064] For example, Figure 2FIG. 1 is a schematic diagram of a water purifier according to an embodiment of the present application. Figure 2 The water purifier comprises a filter element assembly 1, an inlet waterway 2 and an outlet waterway (not shown). A flow sensor 3 is arranged on the inlet waterway 1, and an ultrasonic device 4 is arranged opposite to the filter element assembly 1 for cleaning the filter element by ultrasonic wave.

[0065] In this implementation, both the flow sensor 3 and the ultrasonic device 4 may be connected to the controller 5. The controller 5 obtains the water flow through the flow sensor 3 and controls the operation of the ultrasonic device 4 according to the logic of the above method embodiment.

[0066] Optionally, in this implementation, a temperature sensor for detecting the temperature of the filter element may be provided, for example, the temperature sensor may be provided on the outer side wall of the filter element.

[0067] Figure 3 Schematic diagram of a method for cleaning a filter element of a water purifier according to an embodiment of the present application. Figure 3 , the method includes the following processing steps.

[0068] First, keep the whole machine (water purifier) ​​running.

[0069] Afterwards, the flow rate Q is detected. Specifically, the waterway flow rate Q is detected before the ultrasonic device is started.

[0070] Afterwards, whether to start the ultrasonic device is determined based on the relationship between Q and L1 and L2. Assume that the current Q is less than L1. At this time, it is determined whether Q≥L2 is established. If not, the ultrasonic device is not started; if so, the ultrasonic device is started.

[0071] Specifically, in this embodiment, L1 (corresponding to the upper limit mentioned above) is the minimum flow rate for normal filtration and water production of the whole machine. The L1 value is formulated based on the standard values ​​specified for water purifiers with different fluxes combined with the test data during the development process. During the process of purifying and filtering water, impurities will gradually accumulate inside the filter element and the flow rate will gradually decrease. When the filter element does not need to be cleaned, the water flow rate will be greater than L1. If the flow rate is not greater than L1, it means that the impurities inside the filter element exceed the standard and need to be flushed.

[0072] L2 (corresponding to the lower limit mentioned above) is the protection value, L2<L1 (usually L2 is set at a few times of L1). When the water circuit of the whole machine is blocked or leaking, there will be a cavity inside the filter element. At this time, the flow rate will be greatly attenuated and lower than L2. In this case, ultrafiltration cleaning cannot be performed. Because if there is no water inside the filter element or the water circuit is blocked or leaking, blindly starting the ultrasonic device will cause the filter element temperature to rise. The temperature exceeding the upper limit temperature of 38°C allowed by the filter element will affect the purification and filtration effect of the filter element, and even seriously damage the filter element assembly. The ultrasonic device can only work when the water circuit flow Q≥L2 is detected.

[0073] Afterwards, after the current ultrasonic cleaning is completed, it is detected whether the flow rate Q satisfies Q>L1. If it does, the ultrasonic cleaning is completed; if not, the ultrasonic device is started.

[0074] Specifically, after the ultrasonic flushing is completed, the cleaning effect is tested to detect the current flow rate Q. If Q>L1, it means that the cleaning effect is up to standard; if Q≤L1, it means that the cleaning effect is not up to standard, and secondary cleaning is performed.

[0075] However, in an implementation of this embodiment, in order to avoid the problem of repeated cleaning leading to consumption of electricity and water resources and the life of related devices, the cleaning time (operating time of the ultrasonic device) needs to be obtained through reasonable calculation.

[0076] Exemplarily, if Q≤L1, according to the numerical relationship between Q and L1, the ultrasonic cleaning time T=(L1-Q)*t / (L1-L2), t is the preset ideal cleaning time, obtained through testing during the development phase (for example, the time required to rise from L1 to L2 under fixed water quality conditions), the value is within a few minutes to 2 hours, the closer the real-time flow rate Q is to L1, the water quality is close to the standard, and the calculated cleaning time is shorter, and vice versa. By setting the ultrasonic cleaning time T, the cleaning effect can be guaranteed, while repeated cleaning or excessive cleaning time can be avoided, thereby saving electricity and water resources, extending the life of the device, and being green and environmentally friendly. Ensure that Q>L1 to complete the ultrasonic cleaning.

[0077] In another example, the ultrasonic cleaning time T=(L1-Q)*t' / L1, wherein t' may be data obtained from experiments, which will not be described in detail here.

[0078] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided in this application can include non-volatile and / or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. As an illustration and not limitation, RAM is available in many forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).

[0079] The various embodiments in the present disclosure are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0080] The protection scope of the present disclosure is not limited to the above-mentioned embodiments. Obviously, those skilled in the art can make various changes and modifications to the present disclosure without departing from the scope and spirit of the present disclosure. If these changes and modifications fall within the scope of the claims of the present disclosure and their equivalents, the intention of the present disclosure also includes these changes and modifications.

Claims

1. A method for cleaning a filter element of a water purifier, characterized in that: The method comprises: Obtaining the water flow rate of the filter element during the water purification process; Determining whether to operate an ultrasonic device to clean the filter element according to whether the water flow rate of the filter element is within a preset water flow rate threshold range, wherein the ultrasonic device is used to clean the filter element using ultrasonic waves; The water flow threshold range includes a lower limit value and an upper limit value, wherein the lower limit value is a limit value indicating abnormality inside the filter element, and the upper limit value is a limit value indicating that impurities in the filter element exceed the standard.

2. The method according to claim 1, characterized in that The step of obtaining the water flow rate of the filter element during the water purification process includes: The real-time water flow of the filter element during the water purification process is obtained through a flow sensor.

3. The method according to claim 1, characterized in that The step of determining whether to operate an ultrasonic device to clean the filter element according to whether the water flow rate of the filter element is within a preset water flow rate threshold range comprises: If the water flow rate of the filter element is within the water flow rate threshold range, starting to operate the ultrasonic device while stopping the water flow into the filter element; If the water flow rate of the filter element is less than the lower limit of the water flow rate threshold range, the ultrasonic device is not started; If the water flow rate of the filter element is greater than the upper limit value of the water flow rate threshold range, the ultrasonic device is not started.

4. The method according to claim 3, characterized in that The method further comprises: When the water flow rate of the filter element is less than the lower limit value of the water flow rate threshold range, a reminder message of abnormality inside the filter element is output.

5. The method according to claim 1, characterized in that The method further comprises: In the case of determining to operate the ultrasonic device, determining the operating time of the ultrasonic device according to the water flow rate, the lower limit value, the upper limit value and the reference time; The closer the water flow rate is to the lower limit value, the longer the operation time is, and the closer the water flow rate is to the upper limit value, the shorter the operation time is.

6. The method according to claim 1 or 5, characterized in that: The method further comprises: After the operation of the ultrasonic device is finished, obtaining the updated water flow of the filter element during the water purification process; Whether to operate an ultrasonic device to clean the filter element is determined according to whether the renewal water flow of the filter element is within the preset water flow threshold range.

7. The method according to claim 1 or 5, characterized in that: The method further comprises: In the case where it is determined to operate the ultrasonic device, during the operation of the ultrasonic device, the temperature of the filter element is detected; Whether to terminate the operation of the ultrasonic device is determined according to whether the temperature of the filter element exceeds a temperature threshold.

8. An electronic device, characterized in that: The electronic device comprises: Memory, for storing computer instructions; A processor, configured to call and execute the computer instructions to implement the method according to any one of claims 1 to 7.

9. A water purifier, characterized in that: The water purifier includes the electronic device as claimed in claim 8, or the water purifier adopts the method as claimed in any one of claims 1-7.

10. The water purifier according to claim 9, characterized in that: The water purifier comprises: A flow sensor for detecting the water flow of the filter element during water purification; The ultrasonic device is used to clean the filter element using ultrasonic waves.

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