Multi-stage electrolytic descaling device

Abstract

The utility model relates to the technical field of water treatment, and one embodiment of the utility model provides a multi-stage electrolytic descaling device which comprises an electrolytic bath, the first grid is movably arranged in the electrolytic bath; the second grid is movably arranged on the first grid, the overlapping amount of the second grid and the first grid is increased or decreased after the second grid moves, and the second grid is used for covering the electrolytic bath together with the first grid. By means of the technical scheme, the technical problem that in the related technology, the size adaptation degree of the grating is low is solved.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the field of water treatment technology, and more specifically, to a multi-stage electrostatic descaling device. Background Technology

[0002] The production of alumina requires a slurry pump to play a crucial role in abrasive mixing. However, due to the significant heat generated by the friction between the dynamic and stationary rings of the mechanical seal, the circulating water of the alumina slurry pump's mechanical seal is necessary for effective cooling and lubrication of these components. Currently, alumina manufacturers often use the production system's water supply as the mechanical seal water for the slurry pump. However, due to factors such as regional water quality and the complexity of the solution system in the production process, the circulating water for the mechanical seal often has high hardness and contains impurities. This easily leads to scaling in the circulating water pipeline and on the mechanical seal itself, affecting the extension and contraction of the mechanical seal spring, causing leakage, compromising the normal operation of the slurry pump, and shortening its service life, among other problems.

[0003] In addition, the mechanical seal circulating water system of the slurry pump is a complex circulating system that flows from the water tank through the water supply device, the slurry pump and the return water device. Its smooth operation is related to the continuity of the entire alumina preparation process and the service life of the equipment. However, due to the influence of the water quality of the mechanical seal water and impurities in the production process, the self-maintenance of the mechanical seal water circulation system often encounters various problems such as water shortage, pipeline blockage and slow flow rate.

[0004] In the multi-stage electrolytic descaling and purification process of circulating water for slurry pumps used in alumina preparation, the liquid to be treated often contains various impurities. The presence of large-sized floating particles can adversely affect the normal operation of the electrolytic descaling device. To effectively solve this problem, existing technologies employ the method of installing a grid within the device. The grid's reciprocating motion under lever action filters and collects solid impurities on the liquid surface, thus ensuring the cleanliness of the electrolytic descaling device to a certain extent and preventing electrode blockage or reduced electrolysis efficiency due to excessive impurities.

[0005] However, conventional bar screens currently have significant design limitations. Their dimensions are typically fixed, making it difficult to flexibly adapt to electrolytic cells of various sizes. This can result in bar screens being unable to be installed in suitable locations, or even if installed, failing to effectively cover the electrolytic cell surface, leading to some floating particles remaining unfiltered and affecting the overall descaling effect and operational stability of the electrolytic descaling device. Utility Model Content

[0006] To overcome the above-mentioned defects, the embodiments of this disclosure provide a multi-stage electrolytic descaling device, which solves the technical problem of low grid size adaptability in electrolytic cells in related technologies.

[0007] According to one aspect, at least one embodiment of this disclosure provides a multi-stage electrostatic descaling apparatus, comprising: an electrolytic cell for electrostatically descaling and softening water;

[0008] The first grid is movably disposed within the electrolytic cell;

[0009] The second grid is movably disposed on the first grid. After the second grid is moved, the amount of overlap between the second grid and the first grid increases or decreases. The second grid is used to cover the internal space of the electrolytic cell together with the first grid.

[0010] For example, in at least one embodiment of this disclosure, a multi-stage electrolytic descaling device is provided, which further includes: the electrolytic cell having a first guide groove and a second guide groove;

[0011] The first guide groove is arranged vertically;

[0012] The second guide groove has an inclined section that gradually moves away from the first guide groove from top to bottom;

[0013] The first grille has a first sliding portion, which is movably disposed in the first guide groove;

[0014] The second grid has a second sliding portion, the second grid is movably disposed on the first grid, and the second sliding portion is movably disposed in the second guide groove.

[0015] For example, in a multi-stage electrostatic descaling device provided in at least one embodiment of this disclosure, the first grid further has a connecting portion, and the connecting portion and the first sliding portion are respectively located on both sides of the first grid;

[0016] The connecting part is used to be driven by a linear drive.

[0017] For example, in a multi-stage electrostatic descaling device provided in at least one embodiment of this disclosure, the first grid has a slot, the upper width of the slot is greater than the lower width of the slot, and the second grid has an insertion portion corresponding to the slot.

[0018] For example, in a multi-stage electrolytic descaling device provided in at least one embodiment of this disclosure, the first grid and the second grid are screening components, and the screening components are in two sets, both located inside the electrolytic cell;

[0019] There are two of each of the first and second guide grooves, which are symmetrically arranged along the vertical center line of the length of the electrolytic cell, and the two screening components move up and down alternately.

[0020] For example, in a multi-stage electrolytic descaling device provided in at least one embodiment of this disclosure, the electrolytic cell includes a first space and a second space, the first space is located above the second space, and the length of the first space is greater than the length of the second space;

[0021] The lengths of the first grille and the second grille are both less than or equal to 1 / 2 of the length of the first space;

[0022] The length of the first grille and the length of the second grille are greater than the length of the second space.

[0023] For example, in a multi-stage electrostatic descaling device provided in at least one embodiment of this disclosure, the second guide groove further has a vertical section, the lower end of which is connected to the upper end of the inclined section.

[0024] For example, in a multi-stage electrostatic descaling device provided in at least one embodiment of this disclosure, the length of the vertical section is greater than twice the height of the second grid.

[0025] For example, in a multi-stage electrolytic descaling device provided in at least one embodiment of this disclosure, the upper part of the electrolytic cell is further provided with a cleaning port, and the upper end of the vertical section is higher than the lower part of the cleaning port.

[0026] For example, in at least one embodiment of this disclosure, a multi-stage electrostatic descaling device further includes:

[0027] An activated carbon filter is located below and connected to the electrolytic cell.

[0028] The beneficial effects of the embodiments disclosed herein are as follows:

[0029] In this disclosure, the second grid is movable and mounted on the first grid. As the second grid moves, the overlap with the first grid increases or decreases accordingly, enhancing the grid system's adaptability to various sizes of electrolytic cells. Enterprises no longer need to customize special grids for different sized electrolytic cells, reducing equipment procurement costs and inventory management complexity. Furthermore, in practical applications, when it is necessary to replace electrolytic cells of different sizes, adaptation can be quickly achieved by adjusting the grid overlap, improving production efficiency. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0031] Figure 1 This is a schematic diagram of the overall structure of this disclosure;

[0032] Figure 2 This is a schematic diagram of the electrolytic cell structure disclosed in this publication;

[0033] Figure 3 This is a schematic diagram of the electrolytic cell and its internal structure disclosed herein;

[0034] Figure 4 This is a schematic diagram of the screening component structure disclosed herein;

[0035] Figure 5 for Figure 4 A magnified schematic diagram of the structure of part I.

[0036] In the figure: 1. Electrolytic cell; 101. First guide channel; 102. Second guide channel; 1021. Inclined section; 1022. Vertical section; 103. First space; 104. Second space; 105. Cleaning port; 2. First grid; 201. First sliding part; 202. Connecting part; 203. Slot; 3. Second grid; 301. Second sliding part; 302. Insertion part; 5. Screening assembly; 6. Activated carbon filter; 7. Flow control tank. Detailed Implementation

[0037] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0038] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0039] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0040] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0041] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0042] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0043] like Figures 1-5 As shown, a multi-stage electrolytic descaling device is illustrated in one embodiment of the present disclosure. In some examples, a first grid 2 is movably disposed within an electrolytic cell 1; a second grid 3 is movably disposed on top of the first grid 2. After the second grid 3 is moved, the amount of overlap between it and the first grid 2 increases or decreases. The second grid 3 is used to cover the internal space of the electrolytic cell 1 together with the first grid 2.

[0044] For example, electrolytic cell 1 operates based on electrochemical principles. When electricity is applied to water, mineral ions (such as calcium and magnesium ions) in the water move directionally under the influence of the electric field and accumulate near the corresponding electrodes. A series of electrochemical reactions occur on the electrode surface, changing the form of these ions from a soluble state to an insoluble state, thereby forming precipitates that are separated from the water, achieving the purpose of descaling and softening.

[0045] like Figure 3 As shown, the second grid 3 is movably mounted on the first grid 2. When the second grid 3 moves, the overlap with the first grid 2 increases or decreases accordingly, enhancing the grid system's adaptability to various sizes of electrolytic cells 1. Enterprises do not need to customize special grids for different sizes of electrolytic cells 1, reducing equipment procurement costs and inventory management difficulties. Furthermore, in practical applications, when it is necessary to replace electrolytic cells 1 of different sizes, adaptation can be quickly achieved by adjusting the grid overlap, improving production efficiency.

[0046] In some examples, the electrolytic cell 1 has a first guide groove 101 and a second guide groove 102; the first guide groove 101 is arranged vertically; the second guide groove 102 has an inclined section 1021, which gradually moves away from the first guide groove 101 from top to bottom; the first grid 2 has a first sliding part 201, which is movably disposed in the first guide groove 101; the second grid 3 has a second sliding part 301, which is movably disposed in the second guide groove 102.

[0047] For example, such as Figure 2 and Figure 3 As shown, the first guide groove 101 and the second guide groove 102 are used to provide stable movement guidance for the first grid 2 and the second grid 3, respectively. Preferably, the first guide groove 101 and the second guide groove 102 can be T-shaped grooves or dovetail grooves, etc. The designer can adjust them according to the actual production situation, and there is no limitation here. The inclined section 1021 of the second guide groove 102 provides guidance for the movement of the second grid 3, so that during the process of the first grid 2 and the second grid 3 descending from top to bottom, the second grid 3 not only moves downward but also moves laterally relative to the first grid 2, thereby increasing the overall coverage area of ​​the two grids. This can more effectively cover a larger area in the electrolytic cell 1, improve the interception and filtration efficiency of impurities, and enhance the descaling capacity of the device.

[0048] In some examples, the first grille 2 also has a connecting portion 202, which is located on both sides of the first grille 2, along with the first sliding portion 201; the connecting portion 202 is used to be driven by a linear drive member.

[0049] For example, the linear drive component can typically be a cylinder, hydraulic cylinder, or electric actuator. When the drive component is activated, it generates a linear thrust or pull force, thereby driving the connecting part 202 to move. Since the connecting part 202 and the first grille 2 are an integral structure, the entire first grille 2 can move up and down within the first guide groove 101 accordingly.

[0050] like Figure 2 , Figure 3 and Figure 4 As shown, since the second grille 3 is movably mounted on the first grille 2, and the second sliding part 301 of the second grille 3 is movably mounted in the second guide groove 102, after the first grille 2 moves downward, it will drive the second grille 3 to move downward synchronously and move horizontally relative to the first grille 2.

[0051] The first sliding part 201 provides a vertical sliding constraint within the first guide groove 101, limiting the horizontal swaying of the first grille 2; while the connection part 202, connected to the linear drive, constrains and guides the movement of the first grille 2 from the other side. The two work together to ensure that the first grille 2 remains within a stable plane during movement, without tilting or twisting.

[0052] In some examples, the first grille 2 has a slot 203, the upper part of which is wider than the lower part of which is wider, and the second grille 3 has an insert 302 corresponding to the slot 203.

[0053] For example, such as Figure 4 As shown, since the linear drive component acts directly on the connecting part 202 of the first grille 2 instead of directly connecting to the second grille 3, and in order to achieve synchronous movement, the second grille is connected to the first grille 2 by means of the slot 203, and a stable fixed height is formed. Therefore, dovetail grooves, T-slots, etc. can be used to achieve a fixed upper and lower insertion connection.

[0054] The slot 203 provided on the first grille 2 has a wider upper part than a wider lower part. This design forms a structural feature similar to a dovetail groove, a T-shaped groove, or an inverted trapezoidal groove. This special shape is designed to fit the insertion part 302 of the second grille 3. When the insertion part 302 is inserted into the slot 203, the slot 203 is wider at the top and narrower at the bottom, thus achieving a stable connection between the two in the height direction.

[0055] The wider upper part of slot 203 makes it easier for the insertion part 302 of the second grille 3 to be inserted into slot 203, reducing the difficulty and precision requirements of installation. During the assembly and maintenance of the equipment, operators can more easily connect the second grille 3 to the first grille 2, improving work efficiency.

[0056] In some examples, the first grid 2 and the second grid 3 are screening components 5, and there are two sets of screening components 5, both located in the electrolytic cell 1; there are two first guide grooves 101 and two guide grooves 102, which are symmetrically arranged along the vertical center line of the length of the electrolytic cell 1, and the two screening components 5 move up and down alternately.

[0057] For example, such as Figure 3 As shown, after a set of screening components 5 has been filtering for a long time, the first grid 2 and the second grid 3 contain a lot of impurities. Replace with another set of screening components 5, drive the other set of screening components 5 downward, lift up the screening components 5 that have been filtered for a long time, and both sets of screening components 5 can move through the first guide groove 101 and the second guide groove 102.

[0058] The first screen 2 and the second screen 3 together form the screening assembly 5, which is used to intercept and filter larger particles of impurities in the water within the electrolytic cell 1. They move within the electrolytic cell 1, covering a certain area to screen impurities in the water flow. The two sets of screening assemblies 5 work alternately within the electrolytic cell 1; when one set is working, the other set can be in standby or being cleaned.

[0059] Continuous filtration is achieved. When one set of screening components 5 accumulates a large amount of impurities due to prolonged filtration and its filtration efficiency decreases, it can be quickly switched to another set of screening components 5 to continue working without interrupting the entire electrostatic descaling process. This ensures the continuous and stable operation of the electrostatic descaling device and improves production efficiency. At the same time, the two sets of screening components 5 can be cleaned and maintained alternately, extending the overall service life of the screening components 5.

[0060] In some examples, the electrolytic cell 1 contains a first space 103 and a second space 104, with the first space 103 located above the second space 104 and the length of the first space 103 being greater than the length of the second space 104; the length of the first grid 2 and the length of the second grid 3 are both less than or equal to half the length of the first space 103; and the sum of the lengths of the first grid 2 and the second grid 3 is greater than the length of the second space 104.

[0061] For example, such as Figure 3 As shown, the electrolytic cell 1 is divided into a first space 103 and a second space 104, with the first space 103 above and longer than the second space 104. When the screening components 5 work alternately, the first space 103 can accommodate the rising screening components 5 to reduce their size, avoiding interference with the descending screening components 5 and ensuring the smooth alternation of the two sets of screening components 5.

[0062] The lengths of both the first grid 2 and the second grid 3 do not exceed half the length of the first space 103. This allows the screening component 5 to move upwards, changing the overlap between the first grid 2 and the second grid 3, thus reducing the overall size of the screening component 5 and enabling it to pass smoothly through the first space 103. The sum of their lengths is greater than the length of the second space 104, ensuring that in operation, both grids completely cover the second space 104, effectively intercepting and filtering impurities within that area. Simultaneously, the second grid 3 has some remaining length due to the stable connection of the first grid 2. Figure 3 As shown, this is to improve the stability of the second grille 3.

[0063] In some examples, the second guide groove 102 also has a vertical section 1022, the lower end of which is connected to the upper end of the inclined section 1021.

[0064] For example, such as Figure 3As shown, the vertical section 1022 provides sufficient space for the other set of screening components 5 to move and unfold after the first grid 2 and the second grid 3 are stacked together.

[0065] In some examples, the length of the vertical segment 1022 is more than twice the height of the second grid 3.

[0066] For example, such as Figure 3 As shown, the vertical segment 1022 is long enough to accommodate the grid stacking and rise to a sufficient height, avoiding interference with the descending screening components 5.

[0067] In some examples, the upper part of the electrolytic cell 1 also has a cleaning port 105, and the upper end of the vertical section 1022 is higher than the lower part of the cleaning port 105.

[0068] For example, such as Figure 3 As shown, the cleaning port 105 is provided to facilitate the cleaning of impurities accumulated inside the electrolytic cell 1, especially on the screening component 5. Through this cleaning port 105, specialized cleaning tools, such as brushes and scrapers, can be used to directly clean the inside of the electrolytic cell 1 without disassembling the entire electrolytic cell 1, greatly simplifying the cleaning process.

[0069] In some examples, the activated carbon filter 6 is located below the electrolyzer 1 and is connected to the electrolyzer 1.

[0070] For example, such as Figure 1 As shown, a flow control tank 7 can be added to control the flow rate of wastewater and sewage. The flow rate of wastewater and sewage entering the purification system can be controlled by adjusting the opening and closing degree of the inlet valve. The electrolytic cell 1 is connected to the rectifier. After the power is turned on, the DC current at the two poles of the electrolytic cell 1 electrolyzes and descales and softens the wastewater and sewage in the cell. Under the action of the current, the wastewater produces gases such as hydrogen and oxygen, which rise to the surface of the liquid in the form of bubbles. During the rising process, most of the light solid impurities such as oil and grease in the water are lifted to the surface of the liquid. Calcium and magnesium cations, which are prone to scale formation, form alkaline solid precipitates under the action of the current and sink to the bottom of the electrolytic cell 1.

[0071] After treatment, the water containing calcium and magnesium precipitates, iron filings, silt and other sedimented impurities at the bottom of electrolytic cell 1 is discharged from electrolytic cell 1 through a pipeline and flows into activated carbon filter 6. A sand tank can be added as needed.

[0072] After settling, the calcium and magnesium precipitates are isolated on the upper layer of sand and activated carbon, while the lower clear liquid layer is the high-quality purified water after descaling and softening. This water can be re-entered into the mechanical seal circulation process to ensure normal operation of the equipment and extend its service life.

[0073] Furthermore, to enhance intelligence, automatic detection equipment can be added. For example, through automatic monitoring technology of the mechanical seal circulating water system, monitoring equipment can be added to each key component of the electrolytic descaling water purification device. A float valve height monitoring and alarm device can be added to the water tank. When the water is full or low, the float height indicator will move away from the normal height range under the action of buoyancy. After the infrared height monitor detects this height signal, it will immediately transmit this signal to the central control system. The central control system will automatically record and save this height information, automatically adjust the electric control valve, adjust the opening and closing of the water tank inlet valve accordingly, and activate the sound alarm device to remind workshop personnel to ensure the safety of the water volume at the water tank.

[0074] In addition, flow velocity sensors are added at both the water inlet of electrolytic cell 1 and the liquid inlet of the flow tank. These sensors convert the detected eddy current frequency into a flow velocity signal, which is then transmitted to the central control system. The central control system combines and analyzes the flow velocity information from both locations. If the difference in flow velocity persists for a period exceeding the warning range, the system sends the signal source information from the flow velocity sensors to the operator. The operator then promptly checks the flow tank's passageway to prevent scale and debris buildup from clogging the pipes and causing equipment malfunctions. This automated self-monitoring system ensures the normal operation of the descaling and water purification circulation system, extends equipment lifespan, improves production automation and safety, and increases production efficiency.

[0075] In summary, the integrated electrostatic descaling and filtration water purification technology achieves integrated descaling and purification of mechanical seal circulating water, effectively reducing the scale formation rate in the mechanical seal water circulation pipeline, making the mechanical seal water circulation smoother, enabling long-term cycle use, ensuring normal equipment operation, extending service life, and reducing production costs. Furthermore, the automatic monitoring technology for the mechanical seal circulating water system enables self-monitoring of the water level, self-repair, and abnormal flow alarms, reducing manual maintenance costs, maintaining the normal operation of the descaling and purification water circulation system, improving production automation and safety, and increasing production efficiency.

[0076] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A multi-stage electrostatic descaling device, characterized in that, include: Electrolytic cell (1); The first grid (2) is movably disposed within the electrolytic cell (1); The second grid (3) is movably disposed on the first grid (2). After the second grid (3) moves, the amount of overlap between the second grid (3) and the first grid (2) increases or decreases. The second grid (3) is used to cover the electrolytic cell (1) together with the first grid (2).

2. The multi-stage electrostatic descaling device according to claim 1, characterized in that, The electrolytic cell (1) has a first guide groove (101) and a second guide groove (102); The first guide groove (101) is arranged vertically; The second guide groove (102) has an inclined section (1021) that gradually moves away from the first guide groove (101) from top to bottom; The first grille (2) has a first sliding part (201), which is movably disposed in the first guide groove (101); The second grille (3) has a second sliding part (301), which is movably disposed in the second guide groove (102).

3. The multi-stage electrostatic descaling device according to claim 2, characterized in that, The first grille (2) also has a connecting part (202), which is located on both sides of the first grille (2) along with the first sliding part (201).

4. The multi-stage electrostatic descaling device according to claim 3, characterized in that, The first grille (2) has a slot (203), and the second grille (3) has an insert (302) corresponding to the shape of the slot (203); The upper part of the slot (203) is wider than the lower part of the slot (203).

5. A multi-stage electrostatic descaling device according to claim 2, characterized in that, The first grid (2) and the second grid (3) are screening components (5), and the screening components (5) have two sets, both located inside the electrolytic cell (1); There are two of each of the first guide groove (101) and the second guide groove (102), and they are arranged symmetrically. The two screening components (5) move up and down alternately.

6. The multi-stage electrostatic descaling device according to claim 5, characterized in that, The electrolytic cell (1) contains a first space (103) and a second space (104). The first space (103) is located above the second space (104), and the length of the first space (103) is greater than the length of the second space (104). The length of the first grille (2) and the length of the second grille (3) are both less than or equal to 1 / 2 of the length of the first space (103); The length of the first grille (2) plus the length of the second grille (3) is greater than the length of the second space (104).

7. A multi-stage electrostatic descaling device according to claim 6, characterized in that, The second guide groove (102) also has a vertical section (1022), the lower end of which is connected to the upper end of the inclined section (1021).

8. A multi-stage electrostatic descaling device according to claim 7, characterized in that, The length of the vertical section (1022) is more than twice the height of the second grille (3).

9. A multi-stage electrostatic descaling device according to claim 7, characterized in that, The upper part of the electrolytic cell (1) also has a cleaning port (105), and the upper end of the vertical section (1022) is higher than the lower part of the cleaning port (105).

10. A multi-stage electrostatic descaling device according to claim 1, characterized in that, Also includes: Activated carbon filter (6) is located below the electrolytic cell (1) and is connected to the electrolytic cell (1).

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