CN114159977A - Electrodialysis membrane stack electrode detection method and device, water purification equipment, medium and equipment - Google Patents

Abstract

The invention discloses an electrodialysis membrane stack electrode detection method, a device, water purification equipment, a medium and equipment, wherein the electrodialysis membrane stack electrode detection method comprises the following steps: after a preset voltage is applied to the electrodialysis membrane stack, acquiring the current of the electrodialysis membrane stack; and judging whether the electrodes of the electrodialysis membrane stack are abnormal or not according to the current of the electrodialysis membrane stack. The electrodialysis membrane stack electrode detection method can judge the electrode state of the electrodialysis membrane stack according to the current of the electrodialysis membrane stack, so that the electrodialysis membrane stack can provide clean water for users.

Description

Electrodialysis membrane stack electrode detection method and device, water purification equipment, medium and equipment

Technical Field

The invention relates to the technical field of electrodialysis, in particular to a method and a device for detecting an electrodialysis membrane stack electrode, water purifying equipment, a medium and equipment.

Background

The electrodialysis method has the advantages of adjustable fresh water quality, high recovery rate and high purified water outlet ratio when being applied to purified water, and the electrodialysis membrane stack for purifying water by the electrodialysis method plays an increasingly important role in the field of water purification. However, in the related art electrodialysis membrane stack, the electrodes may change abnormally with the use of the electrodialysis membrane stack for a long time, so that the water purifying capacity of the electrodialysis membrane stack is reduced, and clean water cannot be provided for users.

Disclosure of Invention

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. To this end, a first object of the present invention is to provide an electrodialysis membrane stack electrode detection method to provide clean water for users.

The second purpose of the invention is to provide an electrodialysis membrane stack detection device.

A third object of the invention is to propose a computer-readable storage medium.

A fourth object of the invention is to propose an electronic device.

A fifth object of the present invention is to provide a water purifying apparatus.

In order to achieve the above object, an embodiment of the first aspect of the present invention provides a method for detecting an electrode of an electrodialysis membrane stack, including the following steps: after a preset voltage is applied to the electrodialysis membrane stack, acquiring the current of the electrodialysis membrane stack; and judging whether the electrodes of the electrodialysis membrane stack are abnormal or not according to the current of the electrodialysis membrane stack.

In order to achieve the above object, a second embodiment of the present invention provides an electrodialysis membrane stack electrode detection device, including: an electrodialysis membrane stack comprising electrodes; a current detection module for detecting a current of the electrodialysis membrane stack; and the electrodialysis power panel is respectively connected with the electrode and the current detection module and used for applying preset voltage to the electrodialysis membrane stack, acquiring the current of the electrodialysis membrane stack after applying the preset voltage to the electrodialysis membrane stack, and judging whether the electrode of the electrodialysis membrane stack is abnormal or not according to the current of the electrodialysis membrane stack.

In order to achieve the above object, a computer-readable storage medium is provided according to a third embodiment of the present invention, which stores a computer program, and when the computer program is executed by a processor, the method for detecting an electrode of an electrodialysis membrane stack is implemented.

In order to achieve the above object, a fourth aspect of the present invention provides an electronic device, which includes a memory and a processor, wherein the memory stores a computer program, and the computer program is executed by the processor to implement the above method for detecting the electrodialysis membrane stack electrode.

In order to achieve the above object, a fifth embodiment of the present invention provides a water purifying apparatus, which includes the above electrodialysis membrane stack electrode detection device, or the above electronic apparatus.

According to the method and the device for detecting the electrodes of the electrodialysis membrane stack, the water purifying device, the medium and the equipment, the current of the electrodialysis membrane stack can be obtained after the preset voltage is applied to the electrodialysis membrane stack, and then the electrode state of the electrodialysis membrane stack can be judged according to the current, so that the electrodialysis membrane stack can provide clean water for a user.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

Fig. 1 is a flow chart of a method for detecting an electrode of an electrodialysis membrane stack according to an embodiment of the invention;

fig. 2 is a schematic view of an electrodialysis membrane stack according to an example of the invention;

fig. 3 is a schematic view of an electrodialysis membrane stack according to another example of the invention;

fig. 4 is a flow chart of an electrodialysis membrane stack electrode detection method according to another embodiment of the invention;

FIG. 5 is a flow chart of an electrodialysis membrane stack electrode detection method according to an example of the invention;

fig. 6 is a flow chart of an electrodialysis membrane stack electrode detection method according to another example of the invention;

fig. 7 is a schematic diagram of the operation of an electrodialysis membrane stack according to an example of the invention;

fig. 8 is a block diagram of the structure of an electrodialysis membrane stack electrode detection device according to an embodiment of the invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

The following describes an electrodialysis membrane stack electrode detection method, an electrodialysis membrane stack electrode detection device, a water purification device, a medium and a device according to an embodiment of the invention with reference to the accompanying drawings.

Fig. 1 is a flow chart of an electrodialysis membrane stack electrode detection method according to an embodiment of the invention.

As shown in fig. 1, the electrodialysis membrane stack electrode detection method comprises the following steps:

and S11, obtaining the current of the electrodialysis membrane stack after the preset voltage is applied to the electrodialysis membrane stack.

Specifically, a detection module is installed at a preset position of the electrodialysis membrane stack, and then when the electrodialysis membrane stack starts to work, the current of the electrodialysis membrane stack is obtained by the detection module.

As shown in fig. 2, the electrodialysis membrane stack may include a plurality of cation exchange membranes, a plurality of anion exchange membranes, and electrodes, and the cation exchange membranes and the anion exchange membranes divide a water chamber of the electrodialysis membrane stack into a plurality of small water chambers. The cation exchange membrane is a membrane having a selective action on cations, and is usually of the sulfonic acid type, with anchor groups and dissociable ions, such as sodium sulfonic acid type, the anchor groups being sulfonate groups and the dissociable ions being sodium ions. The cation exchange membrane can be regarded as a polymer electrolyte, and since the cation membrane is negatively charged, although originally dissociated positive ions are dissociated into water by water molecules, when electricity is applied outside the membrane and an electric field is applied, the positively charged cations can pass through the cation exchange membrane, and the anions cannot pass through the cation exchange membrane due to isotropic repulsion, so that the cation exchange membrane has selective permeability. The anion exchange membrane can have a selective permeability effect on anions, anions with negative charges can pass through the anion exchange membrane, but cations cannot pass through the anion exchange membrane due to isotropic repulsion. And after the electrodes are electrified, ions in the water chambers are directionally moved under the influence of an electric field and are influenced by the selective permeability of the ion exchange membranes so as to generate thick and thin water separation, the small water chambers are changed into a concentrated water chamber and a purified water chamber which are alternately arranged, the wastewater generated by the electrodialysis membrane stack is arranged in the concentrated water chamber, the purified water is arranged in the purified water chamber, and the water quality of the purified water in the purified water chamber can be changed by adjusting the voltage supplied to the electrodes. The electrode includes an activated carbon coating and a current collector, as shown in fig. 3. The electrodes in the electrodialysis membrane stack are also connected with an electrodialysis power supply board and used for forming an electric field inside the electrodialysis membrane stack through the electrodes. The cation exchange membrane, the anion exchange membrane and the activated carbon coating can filter impurities in water, so that purified water is obtained.

Therefore, the detection module is preferably a current sensor, and the current sensor may be connected to the electrodialysis membrane stack, for example, to an electrode in the electrodialysis membrane stack, and the current sensor may also be connected to an electrodialysis power supply board, so that after the electrodialysis power supply board applies a preset voltage to the electrodialysis membrane stack, the current sensor may directly obtain the current of the electrodialysis membrane stack, and then send the obtained current to the electrodialysis power supply board; the current sensor can also be directly installed on the electrodialysis membrane stack and is connected with the electrodialysis power supply board, so that after the electrodialysis power supply board applies preset voltage to the electrodialysis membrane stack, the current sensor can directly acquire the current of the electrodialysis membrane stack and then send the acquired current to the electrodialysis power supply board. Alternatively, the current sensor may be connected to only the electrodialysis power supply board, so that after the electrodialysis power supply board applies a predetermined voltage to the electrodialysis membrane stack, the current sensor may obtain an output current of the electrodialysis power supply board, use the current as a current of the electrodialysis membrane stack, and send the current to the electrodialysis power supply board; the current sensor can also be directly integrated on the electrodialysis power supply board, and the electrodialysis power supply board can directly obtain the output current of the electrodialysis power supply board through the current sensor.

As an example, the detection module may be an electric field intensity sensor, and the electric field intensity sensor may be configured to sense an intensity of an electric field formed by the electrodialysis power supply plate through the electrodes in the electrodialysis membrane stack, so as to obtain a current of the electrodialysis membrane stack according to the intensity of the electric field.

And S12, judging whether the electrodes of the electrodialysis membrane stack are abnormal or not according to the current of the electrodialysis membrane stack.

Specifically, after the current of the electrodialysis membrane stack is obtained, the electrodialysis power supply board can compare the obtained current with a preset current threshold value, so as to obtain a judgment result.

Therefore, the current of the electrodialysis membrane stack can be acquired, and whether the electrodes of the electrodialysis membrane stack are abnormal or not can be judged according to the current of the electrodialysis membrane stack, so that the electrodialysis membrane stack is prevented from providing unclean water for a user.

In an embodiment of the present invention, as shown in fig. 4, the above determining whether the electrodes of the electrodialysis membrane stack are abnormal according to the current of the electrodialysis membrane stack includes:

and S41, judging whether the current of the electrodialysis membrane stack is larger than a preset current threshold value.

And S42, if the current of the electrodialysis membrane stack is larger than a preset current threshold value, judging that the electrodes of the electrodialysis membrane stack are abnormal.

Specifically, referring to fig. 3, the electrodes in the electrodialysis membrane stack include an activated carbon coating and a current collector, however, the activated carbon coating gradually falls off under the action of long-term current, resulting in the reduction of the water purification capacity of the electrodialysis membrane stack; meanwhile, the falling of the activated carbon coating can cause the current of the electrodialysis membrane stack to increase on the premise that the voltage applied to the electrodialysis membrane stack is not changed. As an example, as shown in table 1 below, it can be seen that there are four electrodialysis membrane stacks, in which the membrane stack 1 shows the phenomenon of the activated carbon coating peeling off, and the membrane stacks 2, 3, 4 are all normal; after the preset voltage is applied to the electrodialysis membrane stack, the electrode current of the membrane stack 2 is 127mA, the electrode current of the membrane stack 3 is 132mA, the electrode current of the membrane stack 4 is 135mA which are all about 130mA, however, the electrode current of the membrane stack 1 reaches 376mA and is obviously higher than the normal working current; furthermore, the TDS (Total dissolved solids) of the effluent of the membrane stacks 2, 3, 4 are 21, 27, 32 respectively, whereas the TDS of the effluent of the membrane stack 1 is as high as 150, i.e. the water purification capacity of the membrane stack 1 is significantly lower than that of the membrane stacks 2, 3, 4. Therefore, after the current of the electrodialysis membrane stack is obtained, the current can be compared with a preset current threshold value to judge whether the current in the electrodialysis membrane stack is too large, if the current is too large, the active carbon coating on the electrode is judged to fall off, and the water purification capacity of the electrodialysis membrane stack cannot meet the requirement.

	Time of water purification DAY	Electrode current mA	The flow rate of the discharged water is mL/min	TDS of effluent
					Membrane stack
1	Abnormality (S)	376	350	150
					Membrane stack 2	90	127	350	21
Membrane stack 3	180	132	350	27
					Membrane stack 4	360	135	350	32

TABLE 1

The preset current threshold may be a preset fixed value. For example, a fixed current value may be preset, and when the detected current is greater than the fixed current value, it is determined that the activated carbon coating has fallen off; or, a fixed value can be preset, and the average value of the current of the electrodialysis membrane stack in normal operation is obtained in advance, so that when the difference value between the detected current and the average value of the current is greater than the preset current threshold value, the activated carbon coating is judged to fall off.

Therefore, whether the activated carbon coating on the electrode of the electrodialysis membrane stack falls off or not can be judged according to the current of the electrodialysis membrane stack.

Optionally, a second current threshold may also be preset, and it is determined whether the current of the electrodialysis membrane stack is smaller than the second current threshold, and if the current of the electrodialysis membrane stack is smaller than the second current threshold, which indicates that the current of the electrodialysis membrane stack is too small, it is determined that the current collector on the electrode is abnormal. The second current threshold may be a preset fixed current value, and when the detected current is smaller than the fixed current value, it is determined that the current collector is abnormal; or, a fixed value may be preset, and the current average value of the electrodialysis membrane stack during normal operation is obtained in advance, so that when the difference between the current average value and the detected current is greater than the second current threshold, it is determined that the current collector is abnormal. Therefore, whether the current collector on the electrode of the electrodialysis membrane stack is abnormal or not can be judged according to the current of the electrodialysis membrane stack.

As an example, a TDS detection module connected to the electrodialysis power board can be further provided to obtain the TDS value of the purified water, so as to determine whether the electrodes of the electrodialysis membrane stack are abnormal according to the current and the TDS value of the electrodialysis membrane stack. Specifically, the higher the TDS of the purified water, the worse the quality of the purified water; therefore, the TDS threshold value can be preset, and after the current of the electrodialysis membrane stack is judged to be abnormal, a small amount of purified water can be firstly purified, the TDS value of the prepared purified water can be acquired, then the TDS value can be compared with the preset TDS threshold value, and if the TDS value is larger than the preset TDS threshold value, the electrode of the electrodialysis membrane stack is determined to be abnormal. Therefore, whether the electrodes of the electrodialysis membrane stack are abnormal or not can be judged by combining the water quality and the current of the electrodialysis membrane stack, so that more accurate judgment is realized.

In an embodiment of the present invention, a voltage sensor may be further disposed on the electrodialysis power supply board, and the voltage sensor may be further used to detect a voltage applied to the electrodialysis membrane stack by the electrodialysis power supply board, and preset a voltage threshold. Therefore, after the current abnormality of the electrodialysis membrane stack is detected, whether the electrodialysis power supply plate is abnormal or not can be judged according to the detection result of the voltage sensor. If the electrodialysis power supply board is not abnormal, judging that the electrodes of the electrodialysis membrane stack are abnormal; and if the electrodialysis power supply board is judged to be abnormal, directly controlling the electrodialysis power supply board to be powered off so as to protect the electrodialysis membrane stack. Therefore, whether the electrodialysis power supply board is abnormal or not can be judged firstly after the current of the electrodialysis membrane stack is abnormal, and more comprehensive judgment is realized.

In one embodiment of the present invention, the electrodialysis membrane stack electrode detection method may further include: and when judging that the electrode of the electrodialysis membrane stack is abnormal, pushing prompt information to a user terminal.

In particular, with reference to fig. 5, a user may install on its terminal end a user APP corresponding to the electrodialysis membrane stack. And then after the electrodialysis power strip confirms that the electrode of electrodialysis membrane stack takes place unusually, the electrodialysis power strip can send this unusual information to the control panel, and the control panel passes through Wifi on it and sends this unusual information to user APP on the user terminal through the high in the clouds to the user can know this electrodialysis membrane stack takes place unusually. The indication information may include, for example, the type of abnormality occurring in the electrode.

Therefore, the acquired abnormal information can be pushed to a user, and the user can repair the electrodialysis membrane stack after receiving the pushed information.

In an embodiment of the present invention, the voltage sensor may be further configured to monitor an output voltage of the electrodialysis power supply board in real time during a normal operation of the electrodialysis membrane stack, and control the electrodialysis membrane stack to be closed if an abnormal change in the output voltage of the electrodialysis power supply board is monitored. Therefore, the electrodialysis membrane stack can be monitored in real time in the normal working process of the electrodialysis membrane stack.

The following describes the electrodialysis membrane stack electrode detection method according to an embodiment of the invention in detail with reference to a specific example shown in fig. 6.

In the specific example, the electrodialysis membrane stack electrode detection method is used for an electrodialysis membrane stack in a household water purifier.

Specifically, the user first fetches and pours water into the household water purifier, and then starts the household water purifier. After the household water purifier is started, the electrodialysis power supply is turned on, and the electrodialysis power supply board applies voltage to the electrodialysis membrane stack. Before the electrodialysis membrane stack starts to perform water purification, the electrodialysis electrode current (i.e. the current of the electrodialysis membrane stack) is detected and whether the current is abnormal or not is judged. And if the current is normal, purifying water normally.

If the current is abnormal, whether the electrodialysis power panel is abnormal or not can be judged according to the detection result of the voltage sensor. If the electrodialysis power panel is normal, judging that the electrode is abnormal and determining the type of the abnormality according to the current so as to send an abnormal signal to the control panel, or if the electrodialysis power panel is normal, performing a small amount of purified water and acquiring a TDS value of the prepared water, if the TDS value is larger than a preset TDS threshold value, determining that the electrode is abnormal and determining the type of the abnormality according to the current so as to send the abnormal signal to the control panel; the control panel sends the abnormal signal to the APP on the user terminal through the cloud end through the Wifi on the control panel so as to inform the user.

Further, in the normal working process of the water purifier, the voltage sensor monitors the output voltage of the electrodialysis power supply board in real time, and if the output voltage of the electrodialysis power supply board is monitored to be abnormally changed, the water purifier is controlled to stop working.

The electrodialysis membrane stack electrode detection method according to the embodiment of the invention is further described in detail with reference to the specific example shown in fig. 7. In fig. 7, 1 is a water path system, 11 is a water inlet pipe, 12 is a purified water outlet pipe, 13 is a wastewater outlet pipe, 15 is a first water return pipe, 16 is a second water return pipe, 20 is an electrodialysis stack, 30 is a switching valve, 43 is a first control valve, 44 is a second control valve, 45 is a third control valve, 46 is a fourth control valve, 51 is a raw water tank, 52 is a wastewater tank, 53 is a front filter, 54 is a rear filter, 55 is a water pump, 56 is a first detection device, and 57 is a second detection device. The power supply in fig. 7 is the electrodialysis power supply board, and the first detection device in fig. 7 can detect the TDS value of the water at the water outlet.

In this particular example, referring to fig. 7, a water pump 55 pumps water from the raw water tank 51 through the water path 11, the pumped water enters the electrodialysis membrane stack 20 after passing through TDS detection of the second detection device 57 and treatment of the pre-filter 53, and a power supply applies a preset voltage to the electrodialysis membrane stack 20 to produce water. After the power supply applies a preset voltage to the electrodialysis membrane stack 20, detecting and acquiring the current of the electrodialysis membrane stack 20 and judging whether the electrodes of the electrodialysis membrane stack 20 are normal or not according to the current.

If the current is normal, water is normally produced, the first control valve 43 and the third control valve 45 are opened, the second control valve 44 and the fourth control valve 46 are closed, the purified water outlet pipe 12 and the wastewater outlet pipe 13 are conducted, and the first water return pipe 15 and the second water return pipe 16 are closed. Purified water in the purified water chamber reaches the end b of the switching valve 30 from the end a of the switching valve 30, further reaches the rear filter element 54 through the purified water outlet pipe 12, and is provided for a user after being treated by the rear filter element 54; the wastewater in the concentrated water chamber passes through the d-side of the switching valve 30 to the c-side of the switching valve 30, and then reaches the wastewater tank 52 through the wastewater outlet pipe 13. And in the normal water making process, the voltage sensor monitors the output voltage of the power supply in real time.

If the current is abnormal, whether the power supply is abnormal or not is judged according to the detection result of the voltage sensor. If the power supply is normal, judging that the electrodes are abnormal and determining the abnormal type according to the current so as to send an abnormal signal to the control panel, or if the power supply is normal, firstly utilizing the normal water production method to produce a small amount of water, acquiring a TDS value of the produced water by using a first detection device 56, and if the TDS value is larger than a preset TDS threshold value, determining that the electrodes are abnormal and determining the abnormal type according to the current so as to send the abnormal signal to the control panel; the control panel sends the abnormal signal to the APP of the user through the cloud end through the Wifi on the control panel so as to inform the user.

In summary, according to the method for detecting the electrode of the electrodialysis membrane stack provided by the embodiment of the invention, the state of the electrode of the electrodialysis membrane stack can be judged by detecting the current of the electrodialysis membrane stack when the electrodialysis membrane stack starts to work, so that the water purification effect of the electrodialysis membrane stack is prevented from failing to reach the standard due to electrode abnormality, and the electrodialysis membrane stack can provide clean water for a user. Therefore, the use experience of the user can be improved.

Fig. 8 is a block diagram of the structure of an electrodialysis membrane stack electrode detection device according to an embodiment of the invention.

As shown in fig. 8, the electrodialysis membrane stack electrode detection device 100 comprises an electrodialysis membrane stack 101, a current detection module 102 and an electrodialysis power supply board 103.

Specifically, the electrodialysis membrane stack 101 includes electrodes; the current detection module 102 is used for detecting the current of the electrodialysis membrane stack 101; the current detection module 102 and the electrodes are connected with an electrodialysis power supply board 103, the electrodialysis power supply board 103 is used for applying a preset voltage to the electrodialysis membrane stack 101, obtaining the current of the electrodialysis membrane stack 101 after applying the preset voltage, and then judging whether the electrodes of the electrodialysis membrane stack 101 are abnormal according to the obtained current.

This electrodialysis membrane stack electrode detection device can realize judging the electrode state of electrodialysis membrane stack according to the electric current of electrodialysis membrane stack to make the electrodialysis membrane stack can provide clean water for the user.

In one embodiment of the invention, the device further comprises a control board, the electrodialysis power supply board 103 is connected with the control board, and the control board is connected with the cloud end in a communication manner; the electrodialysis power supply board 103 is further configured to send an abnormal signal to the control board when determining that the electrode of the electrodialysis membrane stack 101 is abnormal, so that the control board pushes prompt information to the user terminal through the cloud.

In one embodiment of the present invention, the electrodialysis power supply board 103 is provided with a current detection module 102.

In one embodiment of the invention, the control board is provided with a wifi communication module, and the control board is in communication connection with the cloud end through the wifi communication module.

In addition, for other specific embodiments of the electrodialysis membrane stack electrode detection device according to the embodiment of the present invention, reference may be made to the above-mentioned electrodialysis membrane stack electrode detection method.

The electrodialysis membrane stack electrode detection device provided by the embodiment of the invention can judge the electrode state of the electrodialysis membrane stack by detecting the current of the electrodialysis membrane stack when the electrodialysis membrane stack starts to work, so that the water purification effect of the electrodialysis membrane stack is prevented from not reaching the standard due to electrode abnormity, and the electrodialysis membrane stack can provide clean water for a user. Therefore, the use experience of the user can be improved.

Further, the present invention proposes a computer-readable storage medium.

In an embodiment of the present invention, a computer readable storage medium has stored thereon a computer program, which, when executed by a processor, implements the above-described electrodialysis membrane stack electrode detection method.

The computer-readable storage medium of the embodiment of the invention, when the computer program is executed by the processor, can judge the electrode state of the electrodialysis membrane stack by detecting the current of the electrodialysis membrane stack when the electrodialysis membrane stack starts to work, so as to prevent the water purification effect of the electrodialysis membrane stack from not reaching the standard due to the electrode abnormality, and enable the electrodialysis membrane stack to provide clean water for a user. Therefore, the use experience of the user can be improved.

Further, the invention provides an electronic device.

In an embodiment of the present invention, the electronic device comprises a memory and a processor, wherein the memory stores a computer program, and the computer program is executed by the processor to realize the electrodialysis membrane stack electrode detection method.

By implementing the method for detecting the electrode of the electrodialysis membrane stack, the electronic equipment provided by the embodiment of the invention can judge the electrode state of the electrodialysis membrane stack by detecting the current of the electrodialysis membrane stack when the electrodialysis membrane stack starts to work, so that the water purification effect of the electrodialysis membrane stack is prevented from failing to reach the standard due to electrode abnormity, and the electrodialysis membrane stack can provide clean water for users. Therefore, the use experience of the user can be improved.

Further, the invention provides a water purifying device.

In an embodiment of the invention, the water purification device comprises the electrodialysis membrane stack electrode detection device, or the electronic device.

According to the water purifying device provided by the embodiment of the invention, the electrodialysis membrane stack electrode detection device or the electronic device can judge the electrode state of the electrodialysis membrane stack by detecting the current of the electrodialysis membrane stack when the electrodialysis membrane stack starts to work, so that the water purifying effect of the electrodialysis membrane stack is prevented from not reaching the standard due to electrode abnormity, and the electrodialysis membrane stack can provide clean water for a user. Therefore, the use experience of the user can be improved.

It should be noted that the logic and/or steps represented in the flowcharts or otherwise described herein, such as an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.

It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims (10)

1. An electrodialysis membrane stack electrode detection method is characterized by comprising the following steps:

after a preset voltage is applied to the electrodialysis membrane stack, acquiring the current of the electrodialysis membrane stack;

and judging whether the electrodes of the electrodialysis membrane stack are abnormal or not according to the current of the electrodialysis membrane stack.

2. The electrodialysis membrane stack electrode detection method according to claim 1, wherein the judging whether the electrodes of the electrodialysis membrane stack are abnormal or not according to the current of the electrodialysis membrane stack comprises:

judging whether the current of the electrodialysis membrane stack is larger than a preset current threshold value or not;

and if the current of the electrodialysis membrane stack is larger than the preset current threshold value, judging that the electrode of the electrodialysis membrane stack is abnormal.

3. The electrodialysis membrane stack electrode detection method according to claim 1, further comprising:

and when judging that the electrode of the electrodialysis membrane stack is abnormal, pushing prompt information to a user terminal.

4. An electrodialysis membrane stack electrode detection device, comprising:

an electrodialysis membrane stack comprising electrodes;

a current detection module for detecting a current of the electrodialysis membrane stack;

and the electrodialysis power panel is respectively connected with the electrode and the current detection module and used for applying preset voltage to the electrodialysis membrane stack, acquiring the current of the electrodialysis membrane stack after applying the preset voltage to the electrodialysis membrane stack, and judging whether the electrode of the electrodialysis membrane stack is abnormal or not according to the current of the electrodialysis membrane stack.

5. The electrodialysis membrane stack electrode detection device according to claim 4, further comprising a control board connected with the electrodialysis power supply board and connected with cloud communication;

the electrodialysis power supply board is further used for sending an abnormal signal to the control board when judging that the electrodes of the electrodialysis membrane stack are abnormal, so that the control board pushes prompt information to a user terminal through the cloud end.

6. Electrodialysis membrane stack electrode detection device according to claim 4 or 5, characterized in that the current detection module is arranged on the electrodialysis power supply board.

7. An electrodialysis membrane stack electrode detection device according to claim 5, wherein the control board is provided with a wifi communication module, and the control board is in communication connection with the cloud end through the wifi communication module.

8. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out a method for electrodialysis membrane stack electrode detection according to any one of claims 1-3.

9. An electronic device comprising a memory and a processor, the memory having stored thereon a computer program, wherein the computer program, when executed by the processor, implements an electrodialysis membrane stack electrode detection method according to any one of claims 1-3.

10. A water purification apparatus comprising an electrodialysis membrane stack electrode detection device according to any one of claims 4-7, or an electronic apparatus according to claim 9.

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