Method, system, water purifier and medium for mineral adjustment of a water purifier

Abstract

The application discloses a mineral substance adjusting method and system of a water purifier, the water purifier and a medium, and relates to the technical field of water purifiers. The method comprises the following steps: calculating the retention value of divalent ion mineral substances and the retention value of monovalent ion mineral substances in purified water according to the current monovalent ion interception rate, the current divalent ion interception rate, first detection data and second detection data; and adjusting the current adjustable wastewater ratio gear of an adjustable wastewater electromagnetic valve based on the comparison result of the retention value of divalent ion mineral substances or the retention value of monovalent ion mineral substances and a set retention value, so that the wastewater passage is proportionally water-passed to realize mineral substance adjustment. The water purifier integrates the purified water passage and the wastewater passage, reversely adjusts the adjustable wastewater electromagnetic valve of the wastewater passage through the comparison result of the retention value of ion mineral substances in the purified water passage and the set retention value, controls the wastewater passage to be proportionally water-passed, and realizes automatic and flexible regulation and control of the mineral substance content based on user demand.

Description

Technical Field

[0001] This invention relates to the field of water purification equipment technology, and in particular to a method, system, water purifier and medium for adjusting minerals in a water purifier. Background Technology

[0002] As water purification products become increasingly popular, standalone purification functions are no longer sufficient to meet user needs. Users want purified water to be safe while also retaining its minerals. Different groups have different requirements for the mineral content in water. Infants and the elderly need to supplement the body with more minerals, requiring a high concentration of mineral ions in the water; young people, with better physical health and higher requirements for the taste of water, require a lower concentration of mineral ions.

[0003] Currently, mineralization can be used to address the above situation by artificially adding mineral ions. However, mineralized filter cartridges pose safety risks, such as the release of heavy metal ions. Furthermore, mineralized filter cartridges are often placed after membrane filter cartridges, but excessive mineralization can lead to excessively high ion concentrations, causing problems such as bacterial growth. Alternatively, a water mixing method can be used, which involves mixing water with different ion rejection rates to obtain water with a set TDS (Total Dissolved Solids) value. However, this method can only adjust the TDS value within a specific range.

[0004] Therefore, how to flexibly adjust the retention values ​​of divalent ions, mainly calcium and magnesium ions, and monovalent ions, mainly sodium and potassium ions, in purified water according to market demand is an urgent problem to be solved. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art, which cannot accurately control the mineral retention value of water purifiers, resulting in poor user experience, and to provide a method, system, water purifier and medium for adjusting minerals in water purifiers.

[0006] The present invention solves the above-mentioned technical problems through the following technical solution:

[0007] In a first aspect, the present invention provides a method for adjusting the mineral content of a water purifier. The water purifier includes a purified water passage and a wastewater passage. The purified water passage includes a pre-membrane ion concentration detection module, a membrane filter element, and a post-membrane ion concentration detection module. One end of the membrane filter element is connected to the pre-membrane ion concentration detection module, and the other end of the membrane filter element is connected to the post-membrane ion concentration detection module. The wastewater passage includes an adjustable wastewater solenoid valve. The mineral adjustment method includes:

[0008] The liquid water in the water purification path is detected by the pre-membrane ion concentration detection module and the post-membrane ion concentration detection module to obtain the corresponding first detection data and second detection data.

[0009] Obtain the current monovalent ion rejection rate and the current divalent ion rejection rate of the membrane filter element corresponding to the current adjustable wastewater ratio setting of the adjustable wastewater solenoid valve;

[0010] Calculate the retention values ​​of divalent and monovalent minerals in the purified water based on the current monovalent ion rejection rate, the current divalent ion rejection rate, the first detection data, and the second detection data.

[0011] Based on the comparison result between the retention value of the divalent ion minerals or the retention value of the monovalent ion minerals and the set retention value, the current adjustable wastewater ratio setting of the adjustable wastewater solenoid valve is adjusted so that the wastewater passage flows water proportionally to achieve mineral regulation.

[0012] Preferably, the step of adjusting the current adjustable wastewater ratio setting of the adjustable wastewater solenoid valve based on the comparison result between the retention value of the divalent ion minerals or the retention value of the monovalent ion minerals and a set retention value includes:

[0013] If the retention value of the monovalent ion mineral or the retention value of the divalent ion mineral is not greater than the set retention value, the current adjustable wastewater ratio setting of the adjustable wastewater solenoid valve is lowered by one setting to control the flow rate of the wastewater passage to decrease.

[0014] If the retention value of the monovalent ion mineral or the retention value of the divalent ion mineral is greater than the set retention value, the current adjustable wastewater ratio setting of the adjustable wastewater solenoid valve is increased by one level to control the increase of the water flow in the wastewater passage; wherein, the number of levels when the valve is decreased by one level is less than the number of levels when the valve is increased by one level.

[0015] Preferably, the ion rejection rate of the membrane filter element corresponding to the high-level adjustable wastewater solenoid valve is greater than the ion rejection rate of the membrane filter element corresponding to the low-level adjustable wastewater solenoid valve.

[0016] Preferably, the step of obtaining the current monovalent ion rejection rate and the current divalent ion rejection rate of the membrane filter element corresponding to the current adjustable wastewater ratio setting of the adjustable wastewater solenoid valve includes:

[0017] A pre-constructed correspondence between the adjustable wastewater ratio settings of different adjustable wastewater solenoid valves and the monovalent ion rejection rate and divalent ion rejection rate of the membrane filter element is established.

[0018] From the correspondence, select the current monovalent ion rejection rate and the current divalent ion rejection rate that correspond to the current adjustable wastewater ratio setting of the adjustable wastewater solenoid valve.

[0019] Secondly, the present invention provides a mineral regulation system for a water purifier, the water purifier including a purified water passage and a wastewater passage, the purified water passage including a pre-membrane ion concentration detection module, a membrane filter element, and a post-membrane ion concentration detection module, one end of the membrane filter element being connected to the pre-membrane ion concentration detection module, and the other end of the membrane filter element being connected to the post-membrane ion concentration detection module, the wastewater passage including an adjustable wastewater solenoid valve, and the mineral regulation system including:

[0020] The detection module is used to detect the liquid water in the water purification path using the pre-membrane ion concentration detection module and the post-membrane ion concentration detection module, and to obtain corresponding first detection data and second detection data.

[0021] The acquisition module is used to acquire the current monovalent ion rejection rate and the current divalent ion rejection rate of the membrane filter element corresponding to the current adjustable wastewater ratio setting of the adjustable wastewater solenoid valve.

[0022] The calculation module is used to calculate the retention values ​​of divalent ion minerals and monovalent ion minerals in the purified water based on the current monovalent ion rejection rate, the current divalent ion rejection rate, the first detection data, and the second detection data.

[0023] The adjustment module is used to adjust the current adjustable wastewater ratio setting of the adjustable wastewater solenoid valve based on the comparison result of the retention value of the divalent ion minerals or the retention value of the monovalent ion minerals with the set retention value, so that the wastewater passage flows water proportionally to achieve mineral regulation.

[0024] Preferably, the adjustment module includes:

[0025] The first adjustment unit is used to reduce the current adjustable wastewater ratio setting of the adjustable wastewater solenoid valve by one level if the retention value of the monovalent ion mineral or the retention value of the divalent ion mineral is not greater than the set retention value, so as to control the reduction of the water flow in the wastewater passage.

[0026] The second adjustment unit is used to increase the current adjustable wastewater ratio setting of the adjustable wastewater solenoid valve by one level if the retention value of the monovalent ion mineral or the retention value of the divalent ion mineral is greater than the set retention value, so as to control the increase of the water flow in the wastewater passage; wherein, the number of levels for decreasing by one level is less than the number of levels for increasing by one level.

[0027] Preferably, the ion rejection rate of the membrane filter element corresponding to the high-level adjustable wastewater solenoid valve is greater than the ion rejection rate of the membrane filter element corresponding to the low-level adjustable wastewater solenoid valve.

[0028] Preferably, the acquisition module includes:

[0029] The construction unit is used to pre-construct the correspondence between the adjustable wastewater ratio settings of different adjustable wastewater solenoid valves and the monovalent ion rejection rate and divalent ion rejection rate of the membrane filter element;

[0030] The filtering unit is used to filter out the current monovalent ion rejection rate and the current divalent ion rejection rate from the correspondence relationship that correspond to the current adjustable wastewater ratio setting of the adjustable wastewater solenoid valve.

[0031] Thirdly, the present invention also provides a water purifier, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the mineral adjustment method of the water purifier as described in the first aspect.

[0032] Fourthly, the present invention provides a computer-readable storage medium storing a computer program thereon, wherein when the processor executes the computer program, it implements the mineral adjustment method for a water purifier as described in the first aspect.

[0033] The positive and progressive effects of this invention are as follows: It provides a method, system, water purifier and medium for adjusting mineral content in a water purifier. By integrating the water purification channel and the wastewater channel into one, the adjustable wastewater solenoid valve in the wastewater channel is adjusted in reverse by comparing the ion mineral retention value in the water purification channel with the set retention value, thereby controlling the wastewater channel to flow water in a proportional manner and realizing automatic and flexible adjustment of mineral content based on user needs. Attached Figure Description

[0034] Figure 1 This is a first flowchart of the mineral adjustment method for a water purifier according to Embodiment 1 of the present invention.

[0035] Figure 2 This is a schematic diagram of the structure of the water purifier according to the mineral adjustment method of the water purifier in Embodiment 1 of the present invention.

[0036] Figure 3 This is a second flowchart of the mineral adjustment method for the water purifier in Embodiment 1 of the present invention.

[0037] Figure 4 This is a schematic diagram of the first module of the mineral adjustment system of the water purifier in Embodiment 2 of the present invention.

[0038] Figure 5 This is a schematic diagram of the second module of the mineral adjustment system of the water purifier in Embodiment 2 of the present invention.

[0039] Figure 6 This is a schematic diagram of the hardware structure of the water purifier in Embodiment 3 of the present invention. Detailed Implementation

[0040] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments described herein.

[0041] Example 1

[0042] This embodiment describes a mineral adjustment method for a water purifier. The water purifier includes a purified water path and a wastewater path. The purified water path includes a pre-membrane ion concentration detection module, a membrane filter element, and a post-membrane ion concentration detection module. One end of the membrane filter element is connected to the pre-membrane ion concentration detection module, and the other end of the membrane filter element is connected to the post-membrane ion concentration detection module. The wastewater path includes an adjustable wastewater solenoid valve, such as... Figure 1 As shown, the mineral conditioning method includes:

[0043] S11. Detect the liquid water in the water purification path using the pre-membrane ion concentration detection module and the post-membrane ion concentration detection module, and obtain the corresponding first detection data and second detection data.

[0044] S12. Obtain the current monovalent ion rejection rate and the current divalent ion rejection rate of the membrane filter element corresponding to the current adjustable wastewater ratio setting of the adjustable wastewater solenoid valve.

[0045] S13. Calculate the retention values ​​of divalent and monovalent minerals in the purified water based on the current monovalent ion rejection rate, the current divalent ion rejection rate, the first detection data, and the second detection data.

[0046] S14. Adjust the current adjustable wastewater ratio setting of the adjustable wastewater solenoid valve based on the comparison result of the retention value of divalent ion minerals or the retention value of monovalent ion minerals with the set retention value, so that the wastewater passage flows water proportionally to achieve mineral regulation.

[0047] In this embodiment, the water purifier includes a purified water path and a wastewater path. The purified water path includes a pre-filter, a power module, and a pre-membrane ion concentration detection module. Figure 2 The diagram shows the detection module 1), membrane filter element, and post-membrane ion concentration detection module. Figure 2 The image shows the detection module 2 and the post-filter.

[0048] For steps S11-S14 above, if the liquid water in the purified water path only contains divalent and monovalent ions, with divalent ions including calcium and magnesium ions, and monovalent ions including sodium and potassium ions, the current divalent ion rejection rate (an) and the current monovalent ion rejection rate (bn) of the membrane filter corresponding to the current adjustable wastewater ratio setting n of the adjustable wastewater solenoid valve are obtained, and an > bn. The percentages of ions passing through the membrane filter are 1-an and 1-bn, respectively. Taking a TDS sensor as an example, if the pre-membrane ion concentration detection module obtains the first detection data T1, the post-membrane ion concentration detection module obtains the second detection data T2. Based on an, bn, T1, and T2, the divalent ion mineral retention values ​​and monovalent ion mineral retention values ​​in the purified water are calculated.

[0049] Under the preset adjustable wastewater ratio setting, the contribution value of divalent ions (Tax) is calculated as (T2-T1+T1*bn) / (bn-an), the retention value of divalent ions (minerals) is (Tax*(1-an), and the retention value of monovalent ions (minerals) is (T1-Tax)*(1-bn), with units of mg / L. The retention value of either divalent or monovalent ions is selected as the calculation reference point for mineral adjustment. The set retention value of minerals in the purified water pipeline is obtained, and the difference between the monovalent ion retention value and the set retention value is compared to adjust the current adjustable wastewater ratio setting. Alternatively, the difference between the monovalent ion retention value and the set retention value can be compared to adjust the current adjustable wastewater ratio setting. This method integrates the purified water path and the wastewater path. By comparing the ion mineral retention value in the purified water path with the set retention value, the adjustable wastewater solenoid valve in the wastewater path is adjusted in reverse, controlling the wastewater path to flow water proportionally, achieving automatic and flexible control of mineral content based on user needs.

[0050] In one embodiment, the ion rejection rate of the membrane filter element corresponding to the high-level adjustable wastewater solenoid valve is greater than the ion rejection rate of the membrane filter element corresponding to the low-level adjustable wastewater solenoid valve.

[0051] Specifically, the current adjustable wastewater ratio setting is n, the current divalent ion rejection rate is an, and the current monovalent ion rejection rate is bn, where n is a natural number ≥ 1. The actual setting data can be designed according to requirements. Furthermore, the larger n is, the higher the wastewater ratio in the wastewater pathway, with a7 greater than a1 and b7 greater than b1.

[0052] In one embodiment, step S14 specifically includes:

[0053] If the retention value of monovalent or divalent mineral ions is not greater than the set retention value, the current adjustable wastewater ratio setting of the adjustable wastewater solenoid valve will be lowered by one setting to control the reduction of the wastewater flow rate.

[0054] If the retention value of monovalent or divalent ion minerals is greater than the set retention value, the current adjustable wastewater ratio setting of the adjustable wastewater solenoid valve will be increased by one level to control the increase of the wastewater flow rate; wherein, the number of levels when decreasing by one level is less than the number of levels when increasing by one level.

[0055] For example, if the retention value of monovalent or divalent mineral ions is less than the set retention value, the adjustable wastewater solenoid valve is increased by one level to reduce the wastewater flow rate. The increased level is then used for water intake, and the current adjustable wastewater ratio level is set as the initial adjustable wastewater ratio level for the next intake of purified water at that set value. If the retention value of monovalent or divalent mineral ions is greater than the set retention value, the adjustable wastewater solenoid valve is increased by one level, increasing n by 1. This results in a higher wastewater ratio and improved membrane filter retention rate. The formula for calculating the retention value of monovalent or divalent mineral ions is then used to determine whether the mineral retention value at the current adjustable wastewater ratio level is closer to the set retention value.

[0056] In one embodiment, such as Figure 3 As shown, step S12 specifically includes:

[0057] S121. Pre-construct the correspondence between the adjustable wastewater ratio settings of different adjustable wastewater solenoid valves and the monovalent ion rejection rate and divalent ion rejection rate of the membrane filter element.

[0058] S122. Filter out the current monovalent ion rejection rate and the current divalent ion rejection rate corresponding to the current adjustable wastewater ratio setting of the adjustable wastewater solenoid valve from the corresponding relationship.

[0059] For a membrane filter cartridge with a preset water purification path, under different adjustable wastewater ratio settings, the retention rate for divalent ions is *an*, the retention rate for monovalent ions is *bn*, *an* > *bn*, and *n* ≥ 1 (a natural number). A correspondence is established based on the adjustable wastewater ratio setting, *an*, and *bn*. From this correspondence, the current monovalent ion retention rate *b1* and the current divalent ion retention rate *a1* corresponding to the current adjustable wastewater ratio setting 1 can be selected. It should be noted that the number of adjustable wastewater ratio settings can be adjusted according to actual conditions to improve the accuracy of mineral retention control.

[0060] In this embodiment, a method for adjusting the mineral content of a water purifier is provided. By integrating the purified water passage and the wastewater passage into one unit, the adjustable wastewater solenoid valve in the wastewater passage is adjusted in reverse by comparing the ion mineral retention value in the purified water passage with the set retention value, thereby controlling the wastewater passage to flow water in a proportional manner and realizing automatic and flexible adjustment of the mineral content based on user needs.

[0061] Example 2

[0062] The mineral regulation system of the water purifier in this embodiment includes a purified water passage and a wastewater passage. The purified water passage includes a pre-membrane ion concentration detection module, a membrane filter, and a post-membrane ion concentration detection module. One end of the membrane filter is connected to the pre-membrane ion concentration detection module, and the other end of the membrane filter is connected to the post-membrane ion concentration detection module. The wastewater passage includes an adjustable wastewater solenoid valve, such as... Figure 4 As shown, the mineral regulation system includes:

[0063] The detection module 310 is used to detect liquid water in the water purification path using the pre-membrane ion concentration detection module and the post-membrane ion concentration detection module, and to obtain corresponding first detection data and second detection data.

[0064] The acquisition module 320 is used to acquire the current monovalent ion rejection rate and the current divalent ion rejection rate of the membrane filter element corresponding to the current adjustable wastewater ratio setting of the adjustable wastewater solenoid valve.

[0065] The calculation module 330 is used to calculate the retention values ​​of divalent ion minerals and monovalent ion minerals in purified water based on the current monovalent ion rejection rate, the current divalent ion rejection rate, the first detection data, and the second detection data.

[0066] The adjustment module 340 is used to adjust the current adjustable wastewater ratio setting of the adjustable wastewater solenoid valve based on the comparison result of the retention value of divalent ion minerals or the retention value of monovalent ion minerals with the set retention value, so that the wastewater passage flows water proportionally to achieve mineral regulation.

[0067] In this embodiment, the water purifier includes a purified water path and a wastewater path. The purified water path includes a pre-filter, a power module, and a pre-membrane ion concentration detection module. Figure 2 The diagram shows the detection module 1), membrane filter element, and post-membrane ion concentration detection module. Figure 2 The image shows the detection module 2 and the post-filter.

[0068] If the liquid water in the purification path contains only divalent and monovalent ions, with divalent ions including calcium and magnesium ions, and monovalent ions including sodium and potassium ions, the current divalent ion rejection rate (an) and the current monovalent ion rejection rate (bn) of the membrane filter corresponding to the current adjustable wastewater ratio setting (n) of the adjustable wastewater solenoid valve are obtained, where an > bn. The percentages of ions passing through the membrane filter are 1 - an and 1 - bn, respectively. Taking a TDS sensor as an example, if the pre-membrane ion concentration detection module obtains the first detection data T1, and the post-membrane ion concentration detection module obtains the second detection data T2, the retention values ​​of divalent and monovalent minerals in the purified water are calculated based on an, bn, T1, and T2.

[0069] Under the preset adjustable wastewater ratio setting, the contribution value of divalent ions (Tax) is calculated as (T2-T1+T1*bn) / (bn-an), the retention value of divalent ions (minerals) is (Tax*(1-an), and the retention value of monovalent ions (minerals) is (T1-Tax)*(1-bn), with units of mg / L. The retention value of either divalent or monovalent ions is selected as the calculation reference point for mineral adjustment. The set retention value of minerals in the purified water pipeline is obtained, and the difference between the monovalent ion retention value and the set retention value is compared to adjust the current adjustable wastewater ratio setting. Alternatively, the difference between the monovalent ion retention value and the set retention value can be compared to adjust the current adjustable wastewater ratio setting. This method integrates the purified water path and the wastewater path. By comparing the ion mineral retention value in the purified water path with the set retention value, the adjustable wastewater solenoid valve in the wastewater path is adjusted in reverse, controlling the wastewater path to flow water proportionally, achieving automatic and flexible control of mineral content based on user needs.

[0070] In one embodiment, the ion rejection rate of the membrane filter element corresponding to the high-level adjustable wastewater solenoid valve is greater than the ion rejection rate of the membrane filter element corresponding to the low-level adjustable wastewater solenoid valve.

[0071] Specifically, the current adjustable wastewater ratio setting is n, the current divalent ion rejection rate is an, and the current monovalent ion rejection rate is bn, where n is a natural number ≥ 1. The actual setting data can be designed according to requirements. Furthermore, the larger n is, the higher the wastewater ratio in the wastewater pathway, with a7 greater than a1 and b7 greater than b1.

[0072] In one embodiment, such as Figure 5 As shown, the adjustment module 340 specifically includes:

[0073] The first regulating unit 341 is used to lower the current adjustable wastewater ratio setting of the adjustable wastewater solenoid valve by one level if the retention value of monovalent ion minerals or the retention value of divalent ion minerals is not greater than the set retention value, so as to control the reduction of the water flow in the wastewater passage.

[0074] The second regulating unit 342 is used to increase the current adjustable wastewater ratio setting of the adjustable wastewater solenoid valve by one level if the retention value of monovalent ion minerals or the retention value of divalent ion minerals is greater than the set retention value, so as to control the increase of the water flow in the wastewater passage; wherein, the number of levels when the valve is lowered by one level is less than the number of levels when the valve is raised by one level.

[0075] For example, if the retention value of monovalent or divalent mineral ions is less than the set retention value, the first regulating unit 341 will raise the adjustable wastewater solenoid valve by one level, control the flow rate of the wastewater channel to decrease, and determine to use the raised level for water intake. The current adjustable wastewater ratio level will be set as the initial adjustable wastewater ratio level for the next intake of purified water at the set value. If the retention value of monovalent or divalent mineral ions is greater than the set retention value, the second regulating unit 342 will raise the adjustable wastewater solenoid valve by one level, increasing n by 1, resulting in a higher wastewater ratio and improved membrane filter retention rate. The unit will then calculate whether the mineral retention value at the current adjustable wastewater ratio level is closer to the set retention value based on the formula for calculating the retention value of divalent or monovalent mineral ions.

[0076] In one embodiment, such as Figure 5 As shown, the acquisition module 320 specifically includes:

[0077] The construction unit 321 is used to pre-build the correspondence between the adjustable wastewater ratio settings of different adjustable wastewater solenoid valves and the monovalent ion rejection rate and divalent ion rejection rate of the membrane filter element.

[0078] The screening unit 322 is used to screen out the current monovalent ion rejection rate and the current divalent ion rejection rate corresponding to the current adjustable wastewater ratio setting of the adjustable wastewater solenoid valve from the corresponding relationship.

[0079] For the membrane filter cartridge in the preset water purification path, under different adjustable wastewater ratio settings, the divalent ion rejection rate is an, the monovalent ion rejection rate is bn, an > bn, and n ≥ 1 (natural numbers). The construction unit 321 establishes a correspondence based on the adjustable wastewater ratio setting, an, and bn. The filtering unit 322 can then filter out the current monovalent ion rejection rate b1 and the current divalent ion rejection rate a1 corresponding to the current adjustable wastewater ratio setting 1 from this correspondence. It should be noted that the number of adjustable wastewater ratio settings can be adjusted according to actual conditions to improve the accuracy of mineral retention control.

[0080] In this embodiment, a mineral regulation system for a water purifier is provided. By integrating the purified water passage and the wastewater passage into one unit, the calculation module adjusts the adjustable wastewater solenoid valve in the wastewater passage in reverse based on the comparison result between the ion mineral retention value in the purified water passage and the set retention value. The regulation module controls the wastewater passage to flow water in proportion, thereby realizing automatic and flexible regulation of mineral content based on user needs.

[0081] Example 3

[0082] Figure 6This is a schematic diagram of a water purifier provided in this embodiment. The water purifier includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, it implements the mineral adjustment method of the water purifier in Embodiment 1. Figure 6 The water purifier 60 shown is merely an example and should not be construed as limiting the functionality and scope of use of the embodiments of the present invention.

[0083] The water purifier 60 can be represented as a general-purpose computing device, such as a server device. The components of the water purifier 60 may include, but are not limited to: at least one processor 61, at least one memory 62, and a bus 63 connecting different system components (including memory 62 and processor 61).

[0084] Bus 63 includes a data bus, an address bus, and a control bus.

[0085] The memory 62 may include volatile memory, such as random access memory (RAM) 621 and / or cache memory 622, and may further include read-only memory (ROM) 623.

[0086] The memory 62 may also include a program / utility 625 having a set (at least one) of program modules 624, including but not limited to: an operating system, one or more application programs, other program modules, and program data, each or some combination of these examples may include an implementation of a network environment.

[0087] The processor 61 executes various functional applications and data processing by running computer programs stored in the memory 62, such as the mineral adjustment method of the water purifier in Embodiment 1 of the present invention.

[0088] The water purifier 60 can also communicate with one or more external devices 64 (e.g., keyboard, pointing device, etc.). This communication can be performed via input / output (I / O) interface 65. Furthermore, the model-generated water purifier 60 can also communicate with one or more networks (e.g., local area network (LAN), wide area network (WAN), and / or public networks, such as the Internet) via network adapter 66. Figure 6 As shown, network adapter 66 communicates with other modules of the model-generated water purifier 60 via bus 63. It should be understood that, although not shown in the figure, other hardware and / or software modules can be used in conjunction with the model-generated water purifier 60, including but not limited to: microcode, device drivers, redundant processors, external disk drive arrays, RAID (disk array) systems, tape drives, and data backup storage systems.

[0089] It should be noted that although several units / modules or sub-units / modules of the water purifier have been mentioned in the detailed description above, this division is merely exemplary and not mandatory. In fact, according to embodiments of the present invention, the features and functions of two or more units / modules described above can be embodied in one unit / module. Conversely, the features and functions of one unit / module described above can be further divided and embodied by multiple units / modules.

[0090] Example 4

[0091] This embodiment provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the mineral adjustment method for the water purifier of Embodiment 1.

[0092] The readable storage medium may be more specifically adopted, including but not limited to: portable disk, hard disk, random access memory, read-only memory, erasable programmable read-only memory, optical storage device, magnetic storage device, or any suitable combination thereof.

[0093] In a possible implementation, the present invention can also be implemented as a program product comprising program code that, when the program product is run on a terminal device, causes the terminal device to perform the steps of implementing the mineral adjustment method of the water purifier of Embodiment 1.

[0094] The program code for executing the present invention can be written in any combination of one or more programming languages. The program code can be executed entirely on the user device, partially on the user device, as a standalone software package, partially on the user device and partially on a remote device, or entirely on a remote device.

[0095] While specific embodiments of the present invention have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but all such changes and modifications fall within the scope of protection of the present invention.

Claims

1. A method for adjusting the mineral content of a water purifier, characterized in that, The water purifier includes a purified water path and a wastewater path. The purified water path includes a pre-membrane ion concentration detection module, a membrane filter element, and a post-membrane ion concentration detection module. One end of the membrane filter element is connected to the pre-membrane ion concentration detection module, and the other end of the membrane filter element is connected to the post-membrane ion concentration detection module. The wastewater path includes an adjustable wastewater solenoid valve. The mineral adjustment method includes: The liquid water in the water purification path is detected by the pre-membrane ion concentration detection module and the post-membrane ion concentration detection module to obtain the corresponding first detection data and second detection data. Obtain the current monovalent ion rejection rate and the current divalent ion rejection rate of the membrane filter element corresponding to the current adjustable wastewater ratio setting of the adjustable wastewater solenoid valve; The retention values ​​of divalent and monovalent minerals in the purified water are calculated based on the current monovalent ion rejection rate, the current divalent ion rejection rate, the first detection data, and the second detection data. The contribution value of divalent ions in the purified water is also calculated based on the current monovalent ion rejection rate, the current divalent ion rejection rate, the first detection data, and the second detection data. Finally, the retention values ​​of divalent and monovalent minerals are calculated based on the contribution value of divalent ions. The formula for calculating the contribution value of divalent ions in the purified water is as follows: Tax=(T2-T1+T1 bn) / (bn-an); The formulas for calculating the retention values ​​of divalent ion minerals and monovalent ion minerals are as follows: The retention value of the divalent ion mineral is: Tax (1-an); The retention value of the monovalent ion mineral is: (T1-Tax) (1-bn); Tax is the contribution value of divalent ions in the purified water; T1 represents the first detection data; T2 represents the second detection data; an is the divalent ion rejection rate; bn is the monovalent ion rejection rate; Based on the comparison result between the retention value of the divalent ion minerals or the retention value of the monovalent ion minerals and the set retention value, the current adjustable wastewater ratio setting of the adjustable wastewater solenoid valve is adjusted so that the wastewater passage flows water proportionally to achieve mineral regulation.

2. The mineral adjustment method for a water purifier as described in claim 1, characterized in that, The step of adjusting the current adjustable wastewater ratio setting of the adjustable wastewater solenoid valve based on the comparison result of the retention value of the divalent ion minerals or the retention value of the monovalent ion minerals with the set retention value includes: If the retention value of the monovalent ion mineral or the retention value of the divalent ion mineral is not greater than the set retention value, the current adjustable wastewater ratio setting of the adjustable wastewater solenoid valve is lowered by one setting to control the flow rate of the wastewater passage to decrease. If the retention value of the monovalent ion mineral or the retention value of the divalent ion mineral is greater than the set retention value, the current adjustable wastewater ratio setting of the adjustable wastewater solenoid valve is increased by one level to control the increase of the water flow in the wastewater passage; wherein, the number of levels when the valve is decreased by one level is less than the number of levels when the valve is increased by one level.

3. The mineral adjustment method for a water purifier as described in claim 1, characterized in that, The ion rejection rate of the membrane filter element corresponding to the high-level adjustable wastewater solenoid valve is greater than that of the membrane filter element corresponding to the low-level adjustable wastewater solenoid valve.

4. The mineral adjustment method for a water purifier as described in claim 1, characterized in that, The step of obtaining the current monovalent ion rejection rate and the current divalent ion rejection rate of the membrane filter element corresponding to the current adjustable wastewater ratio setting of the adjustable wastewater solenoid valve includes: A pre-constructed correspondence between the adjustable wastewater ratio settings of different adjustable wastewater solenoid valves and the monovalent ion rejection rate and divalent ion rejection rate of the membrane filter element is established. From the correspondence, select the current monovalent ion rejection rate and the current divalent ion rejection rate that correspond to the current adjustable wastewater ratio setting of the adjustable wastewater solenoid valve.

5. A mineral adjustment system for a water purifier, characterized in that, The water purifier includes a purified water path and a wastewater path. The purified water path includes a pre-membrane ion concentration detection module, a membrane filter element, and a post-membrane ion concentration detection module. One end of the membrane filter element is connected to the pre-membrane ion concentration detection module, and the other end of the membrane filter element is connected to the post-membrane ion concentration detection module. The wastewater path includes an adjustable wastewater solenoid valve. The mineral adjustment system includes: The detection module is used to detect the liquid water in the water purification path using the pre-membrane ion concentration detection module and the post-membrane ion concentration detection module, and to obtain corresponding first detection data and second detection data. The acquisition module is used to acquire the current monovalent ion rejection rate and the current divalent ion rejection rate of the membrane filter element corresponding to the current adjustable wastewater ratio setting of the adjustable wastewater solenoid valve. The calculation module is used to calculate the retention values ​​of divalent and monovalent minerals in the purified water based on the current monovalent ion rejection rate, the current divalent ion rejection rate, the first detection data, and the second detection data. It also calculates the contribution value of divalent ions in the purified water based on the current monovalent ion rejection rate, the current divalent ion rejection rate, the first detection data, and the second detection data, and then calculates the retention values ​​of divalent and monovalent minerals based on the contribution value of divalent ions. The calculation formula for the contribution value of divalent ions in the purified water is as follows: Tax=(T2-T1+T1 bn) / (bn-an); The formulas for calculating the retention values ​​of divalent ion minerals and monovalent ion minerals are as follows: The retention value of the divalent ion mineral is: Tax (1-an); The retention value of the monovalent ion mineral is: (T1-Tax) (1-bn); Tax is the contribution value of divalent ions in the purified water; T1 represents the first detection data; T2 represents the second detection data; an is the divalent ion rejection rate; bn is the monovalent ion rejection rate; The adjustment module is used to adjust the current adjustable wastewater ratio setting of the adjustable wastewater solenoid valve based on the comparison result of the retention value of the divalent ion minerals or the retention value of the monovalent ion minerals with the set retention value, so that the wastewater passage flows water proportionally to achieve mineral regulation.

6. The mineral adjustment system of the water purifier as described in claim 5, characterized in that, The adjustment module includes: The first adjustment unit is used to reduce the current adjustable wastewater ratio setting of the adjustable wastewater solenoid valve by one level if the retention value of the monovalent ion mineral or the retention value of the divalent ion mineral is not greater than the set retention value, so as to control the reduction of the water flow in the wastewater passage. The second adjustment unit is used to increase the current adjustable wastewater ratio setting of the adjustable wastewater solenoid valve by one level if the retention value of the monovalent ion mineral or the retention value of the divalent ion mineral is greater than the set retention value, so as to control the increase of the water flow in the wastewater passage; wherein, the number of levels for decreasing by one level is less than the number of levels for increasing by one level.

7. The mineral adjustment system of the water purifier as described in claim 5, characterized in that, The ion rejection rate of the membrane filter element corresponding to the high-level adjustable wastewater solenoid valve is greater than that of the membrane filter element corresponding to the low-level adjustable wastewater solenoid valve.

8. The mineral adjustment system of the water purifier as described in claim 5, characterized in that, The acquisition module includes: The construction unit is used to pre-construct the correspondence between the adjustable wastewater ratio settings of different adjustable wastewater solenoid valves and the monovalent ion rejection rate and divalent ion rejection rate of the membrane filter element; The filtering unit is used to filter out the current monovalent ion rejection rate and the current divalent ion rejection rate from the correspondence relationship that correspond to the current adjustable wastewater ratio setting of the adjustable wastewater solenoid valve.

9. A water purifier, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the mineral adjustment method for the water purifier as described in any one of claims 1-4.

10. A computer-readable storage medium, characterized in that, A computer program is stored on the computer-readable storage medium, which, when executed by a processor, implements the mineral adjustment method of the water purifier as described in any one of claims 1-4.

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