A bipolar water machine based on bipolar membrane electrolysis coupling and disinfection

Abstract

The application belongs to the bipolar water production field, and particularly relates to a bipolar water machine based on bipolar membrane electrolysis coupling and disinfection, which comprises an electrolytic tank, first and second electrolytic members for electrolysis power supply are installed at two ends of the electrolytic tank; a lifting mechanism is arranged outside the electrolytic tank and is used for driving a frame mechanism to lift in the electrolytic tank; the frame mechanism comprises a membrane frame and a limiting frame which are combined; salt water is electrolyzed in the electrolytic tank to realize acid and alkali bipolar water diversion output, when scale is formed on the membrane surface and affects subsequent electrolysis, the frame mechanism is driven upward by the lifting mechanism, the membrane sheet installed in the frame mechanism is moved to the cleaning mechanism and the blowing mechanism, the scale attached to the membrane sheet surface is quickly cleaned through the cooperation of the cleaning mechanism and the blowing mechanism, normal electrolysis is carried out through another group of membrane sheets during the cleaning process, the two groups of membrane sheets are alternately used and cleaned, and the production efficiency and production quality are ensured in the process of electrolysis for generating bipolar water every time.

Description

Technical Field

[0001] This invention relates to the field of bipolar water production, specifically to a bipolar water machine based on bipolar membrane electrolytic coupling and disinfection. Background Technology

[0002] Bipolar water is a biomimetic functional water prepared through electrolysis technology. Its core component is ClOH (hypochlorous acid) generated by electrolysis, which mimics the human immune bactericidal mechanism and has highly efficient antibacterial, antiviral and tissue repair functions. It is mainly used in the field of health care, covering oral, skin, eye and nose mucous membranes and wound care.

[0003] In the electrolytic preparation of bipolar water, the internal membranes are fixed in design, and the acid and alkali generated by electrolysis are produced in the corresponding chambers. However, due to the frequent ion exchange of the membranes, scale will form on the outer periphery of the membranes, which will reduce the efficiency of subsequent electrolytic production of bipolar water and contaminate the produced bipolar water, thus having shortcomings. Summary of the Invention

[0004] (I) Purpose of the Invention

[0005] To address the technical problems existing in the background art, this invention proposes a bipolar water machine based on bipolar membrane electrolytic coupling and disinfection, which features high bipolar water production efficiency and maintains production quality.

[0006] (II) Technical Solution

[0007] To solve the above-mentioned technical problems, the present invention provides a bipolar water machine based on bipolar membrane electrolytic coupling and disinfection, including an electrolytic cell, wherein a first electrolytic element and a second electrolytic element for electrolytic power supply are installed at both ends of the electrolytic cell;

[0008] The lifting mechanism is located on the outside of the electrolytic cell and is used to drive the frame mechanism to lift and lower inside the electrolytic cell;

[0009] The frame mechanism includes a membrane frame and a limiting frame that are combined and arranged together. A clamping component with a clamping groove is installed at the corner of the two. A bipolar membrane, a cation membrane and an anion membrane are installed in the frame mechanism respectively. Both the cation membrane and the anion membrane are provided in two sets.

[0010] The electrolytic cell is divided into two chambers by a bipolar membrane, and the cation membrane and the anion membrane divide the chamber into an acid chamber, a salt chamber and an alkali chamber from left to right;

[0011] The purging mechanism includes a cleaning platform installed between adjacent frame mechanisms, the cleaning platform having a built-in bidirectional purging fan;

[0012] The spraying mechanism includes a water pump installed on the cleaning platform, and a water pipe that penetrates into the inner cavity of the cleaning platform is installed at the output end of the water pump. A spraying end seat for bidirectional spraying is provided on the water pipe.

[0013] The water supply mechanism includes a water pump installed on the electrolytic cell for liquid inlet and liquid outlets for liquid outlets corresponding to each chamber.

[0014] Preferably, the first electrolytic element is an anode portion, and the second electrolytic element is a cathode portion, and the first electrolytic element and the second electrolytic element are connected to form a circuit during electrolysis.

[0015] Preferably, the lifting mechanism includes a cylinder disposed outside the electrolytic cell, a piston rod is installed at the output end of the cylinder, a support plate is connected to the other end of the piston rod, and an "L-shaped" connecting rod is installed on the support plate.

[0016] Preferably, the upper part of the membrane frame is equipped with a positioning platform with slots, the limiting frame is equipped with protruding positioning members, the limiting frame and the membrane frame are fixed together by the positioning members and the positioning platform, and the closed whole is provided with four clamping members for clamping at the corner.

[0017] Preferably, the bipolar membrane includes a symmetrically arranged cation exchange layer and an anion exchange layer, which are connected by an interfacial catalytic layer.

[0018] Preferably, the bipolar membrane is provided in three groups, one group is provided in the middle of the electrolytic cell, and the remaining two groups are provided on adjacent sides of the first electrolytic cell and the second electrolytic cell.

[0019] Preferably, the cavity between the anion exchange membrane and the bipolar membrane is an acid chamber, the cavity between the cation exchange membrane and the bipolar membrane is an alkali chamber, and the cavity between the cation exchange membrane and the anion exchange membrane is a salt chamber.

[0020] Preferably, the purging mechanism further includes a ventilation frame installed between the cleaning tables, with fans symmetrically mounted on the two ventilation frames, each fan having built-in rotatable blades.

[0021] Preferably, the spraying mechanism includes a liquid collection box disposed outside the frame mechanism, and the cleaning platform, the liquid collection box and the frame mechanism are combined to form a spraying passage.

[0022] Preferably, the inlet end of the water pump is connected to a liquid supply device, which is connected to the liquid receiving end seat to obtain acidic and alkaline cleaning solutions for cleaning.

[0023] The above-mentioned technical solution of the present invention has the following beneficial technical effects: when brine is electrolyzed in an electrolytic cell to achieve acid and alkali bipolar water output, and scale forms on the membrane surface, affecting subsequent electrolysis, the lifting mechanism drives the frame mechanism to move upward, moving the membrane installed in the frame mechanism to the cleaning mechanism and the purging mechanism. Through the coordinated work of the cleaning mechanism and the purging mechanism, the scale attached to the membrane surface is quickly cleaned. During the cleaning process, another set of membranes is used for normal electrolysis. The two sets of membranes are used alternately for cleaning, ensuring that the production efficiency and production quality are maintained in each electrolysis process to generate bipolar water. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the present invention;

[0025] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0026] Figure 3 This is a schematic diagram of the lifting mechanism structure of the present invention;

[0027] Figure 4 This is a schematic diagram of the frame mechanism of the present invention;

[0028] Figure 5 This is a schematic diagram of the bipolar film structure of the present invention;

[0029] Figure 6 This is a schematic diagram of the purging mechanism structure of the present invention;

[0030] Figure 7 This is a schematic diagram of the spraying mechanism of the present invention;

[0031] Figure 8 This is a schematic diagram of an embodiment of the present invention.

[0032] Figure label:

[0033] 1. Electrolytic cell; 11. First electrolytic unit; 12. Second electrolytic unit; 21. Cylinder; 22. Piston rod; 23. Support plate; 24. Connecting rod; 31. Membrane frame; 32. Membrane clamping component; 33. Positioning platform; 34. Limiting frame; 35. Positioning component; 4. Bipolar membrane; 41. Cation exchange layer; 42. Interfacial catalytic layer; 43. Anion exchange layer; 5. Cation membrane; 6. Anion membrane; 71. Cleaning platform; 72. Ventilation frame; 73. Fan; 74. Fan blade; 81. Water pump; 82. Water pipe; 83. Spraying end seat; 84. Liquid collection box; 91. Water supply pump; 92. Liquid taking end seat. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and the accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of the invention. Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concept of the invention.

[0035] like Figure 1-8 As shown, the present invention proposes a bipolar water purifier based on bipolar membrane electrolytic coupling and disinfection, including an electrolytic cell 1. A first electrolytic element 11 and a second electrolytic element 12 for electrolytic power supply are installed at both ends of the electrolytic cell 1. The first electrolytic element 11 is the anode part and the second electrolytic element 12 is the cathode part. During electrolysis, the first electrolytic element 11 and the second electrolytic element 12 are connected to form a circuit to provide the electric field required for electrolysis and drive ion migration.

[0036] The lifting mechanism is located on the outside of the electrolytic cell 1 and is used to drive the frame mechanism to lift and lower inside the electrolytic cell 1.

[0037] The lifting mechanism includes a cylinder 21 located outside the electrolytic cell 1. A piston rod 22 is installed at the output end of the cylinder 21. The other end of the piston rod 22 is connected to a support plate 23. An "L-shaped" connecting rod 24 is installed on the support plate 23.

[0038] As an example of the lifting mechanism's operation: the piston rod 22 driven by the cylinder 21 extends or resets, causing the connecting rod 24 connected to the support plate 23 to perform a synchronous action of rising or falling, thereby driving the frame mechanism connected to it to rise and fall within the electrolytic cell 1.

[0039] When the frame structure is located inside the electrolytic cell 1, it works with the membrane installed inside to exchange and penetrate ions.

[0040] When the frame mechanism is located above the electrolytic cell 1, it works in conjunction with the purging mechanism and the spraying mechanism to clean the surface of the membrane, making it easier for the membrane to be removed from the electrolyte for cleaning and avoiding scaling caused by long-term immersion.

[0041] The frame mechanism includes a membrane frame 31 and a limiting frame 34 arranged in combination. A clamping member 32 with a clamping groove is installed at the corner of the two. A bipolar membrane 4, a cation membrane 5 and an anion membrane 6 are installed in the frame mechanism respectively. Both the cation membrane 5 and the anion membrane 6 are provided in two sets.

[0042] Electrolytic cell 1 is divided into two chambers by a bipolar membrane 4, and the chambers are further divided into an acid chamber, a salt chamber, and an alkali chamber from left to right by a cation membrane 5 and an anion membrane 6.

[0043] The purging mechanism includes a cleaning table 71 installed between adjacent frame mechanisms, and the cleaning table 71 has a built-in bidirectional purging fan 73;

[0044] The spraying mechanism includes a water pump 81 installed on the cleaning platform 71, and a water pipe 82 that penetrates into the inner cavity of the cleaning platform 71 is installed at the output end of the water pump 81. A spraying end seat 83 for bidirectional spraying is provided on the water pipe 82.

[0045] The water supply mechanism includes a water supply pump 91 installed on the electrolytic cell 1 for liquid inlet and liquid outlet seats 92 corresponding to each chamber for liquid outlet.

[0046] In this embodiment, brine is pumped into the electrolytic cell 1 by a water supply pump 91. The first electrolytic element 11 and the second electrolytic element 12 are connected to form a passage to electrolyze the brine. The Cl- and OH- generated by electrolysis permeate through the bipolar membrane 4, the cation membrane 5 and the anion membrane 6. The cavity between the anion membrane 6 and the bipolar membrane 4 is the acid chamber, and the cavity between the cation membrane 5 and the bipolar membrane 4 is the alkali chamber. Cl- is mainly oxidized to generate ClOH hypochlorous acid, and high-pH alkaline water containing OH- is generated in the cathode area, realizing the bipolar water diversion output of acid and alkali.

[0047] Before and after electrolysis, the remaining Na + Cl- ions mix with Cl- ions in the salt chamber between cation exchange membrane 5 and anion exchange membrane 6, causing scaling on the membrane surface and affecting subsequent electrolysis.

[0048] The lifting mechanism drives the frame mechanism to move upward, moving the cation membrane 5 and anion membrane 6 installed inside the frame mechanism to the cleaning and purging mechanisms. Through the coordinated work of the cleaning and purging mechanisms, the scale attached to the surface of the cation membrane 5 and anion membrane 6 is quickly cleaned. During the cleaning process, another set of cation membrane 5 and anion membrane 6 is used for normal electrolysis. The two sets of cation membrane 5 and anion membrane 6 are used alternately for cleaning to ensure that the production efficiency and quality are maintained in each electrolysis process to generate bipolar water.

[0049] In one embodiment, to facilitate the replacement of the diaphragm, a positioning platform 33 with a slot is installed on the upper part of the diaphragm frame 31, and a protruding positioning element 35 is installed on the limiting frame 34. The limiting frame 34 and the diaphragm frame 31 are fixed together by the positioning element 35 and the positioning platform 33. The closed whole is provided with four clamping elements 32 for clamping at the corner. When replacing the diaphragm, the positioning platform 33 of the side limiting frame 34 is pulled out of the positioning element 35, the limiting clamp of the frame is removed, and the diaphragm is pulled out of the clamping element 32. A new diaphragm is then replaced and assembled, which can quickly replace the failed diaphragm.

[0050] To facilitate water decomposition, the bipolar membrane 4 further includes a symmetrically arranged cation exchange layer 41 and anion exchange layer 43, which are connected by an interfacial catalytic layer 42. The interfacial catalytic layer 42 can efficiently catalyze the dissociation reaction of water in a neutral or low ion concentration environment, avoiding the dependence of traditional water electrolysis on strong acid and strong base electrolytes.

[0051] Anion exchange layer 43: Allows OH- to pass through, forming an alkaline environment;

[0052] Cation exchange layer 41: Allows H + This creates an acidic environment;

[0053] Provide suitable pH conditions for different reactions; for example, the acidic side favors the oxygen evolution reaction, while the alkaline side favors the hydrogen evolution reaction.

[0054] It is understandable that there are three sets of bipolar membranes 4, one set in the middle of the electrolytic cell 1, and the remaining two sets set on the adjacent sides of the first electrolytic cell 11 and the second electrolytic cell 12.

[0055] The bipolar membrane in the middle is used to separate the acid chamber and the base chamber, and dominates the H2O. + It reacts with OH- to form;

[0056] The near-electrode bipolar film is located inside the anode and cathode to enhance the edge electric field strength and suppress concentration polarization near the electrode;

[0057] The three sets of bipolar films form a series electric field, which makes the potential gradient distribution in the electrolytic cell more uniform, increases the ion migration speed, and reduces energy consumption.

[0058] It is understandable that the cavity between the anion membrane 6 and the bipolar membrane 4 is the acid chamber, the cavity between the cation membrane 5 and the bipolar membrane 4 is the base chamber, and the cavity between the cation membrane 5 and the anion membrane 6 is the salt chamber.

[0059] The acid chamber is located between the anion exchange membrane 6 and the bipolar membrane 4: Cl- is anoly oxidized to generate ClOH;

[0060] The salt chamber is located between cation membrane 5 and anion membrane 6: Na + and Cl- buffer pool;

[0061] The alkaline chamber is located between cation exchange membrane 5 and bipolar membrane 4: OH- enrichment;

[0062] Each chamber uses an independent liquid extraction end seat 92 as a drainage channel to extract acidic or alkaline produced liquids.

[0063] As an example of the working function of the purging mechanism: The purging mechanism also includes ventilation frames 72 installed between cleaning tables 71, with fans 73 symmetrically installed on the two ventilation frames 72, and the fans 73 having built-in rotatable fan blades 74.

[0064] In this process, the membrane frame 31 of the frame mechanism is lifted above the electrolytic cell 1 by the lifting mechanism. The ventilation frame 72 of the cleaning table 71 is parallel to the membrane. The fan blades 74 in the fan 73 rotate to blow air and clean the membrane, removing the structures attached to its surface. After cleaning, the scale on the membrane surface is reduced, and the transmission is smooth.

[0065] As an example of the operation of the spraying mechanism: The spraying mechanism includes a liquid collection box 84 located outside the frame mechanism, and the cleaning table 71, the liquid collection box 84 and the frame mechanism are combined to form a spraying passage.

[0066] Among them, the membrane frame 31 of the frame mechanism is lifted above the electrolytic cell 1 by the lifting mechanism and is located in the area between the liquid collection box 84 and the cleaning table 71. The water pump 81 transmits the cleaning liquid to the water pipe 82 and sprays it onto the membrane surface through the spray end seat 83 to perform targeted acid and alkali cleaning on the membrane, which can solve the problem of scaling on the membrane surface.

[0067] The collection box 84 can collect waste liquid from the cleaning process, preventing pollution of the surrounding environment and reducing the corrosion problem of the cleaning liquid on the surrounding area.

[0068] Understandably, the inlet end of the water pump 81 is connected to the liquid supply device, which is connected to the liquid receiving end seat 92 to obtain the acidic and alkaline cleaning solutions used for cleaning. The water pump 81 is connected to the corresponding liquid receiving end seat 92 to provide the acidic and alkaline cleaning solutions respectively, which are the cleaning solutions for the diaphragm after electrolysis, thus reducing cleaning costs.

[0069] In one embodiment, the lifting mechanism and the frame mechanism are configured in cooperation. When the position of the frame mechanism is adjusted by the lifting mechanism, the layout of the membranes in the electrolytic cell 1 can be changed, and the spaces of the acid chamber, alkali chamber and salt chamber can be adjusted to adapt to different production process requirements. Furthermore, by adjusting the membrane layout, strong acid and strong alkali solutions can be produced in a targeted manner, thereby improving the applicability of the equipment.

[0070] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of the invention and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of the invention should be included within the protection scope of the invention. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A bipolar water system based on bipolar membrane electrolytic coupling and disinfection, characterized in that, It includes an electrolytic cell (1), and the two ends of the electrolytic cell (1) are equipped with a first electrolytic element (11) and a second electrolytic element (12) for electrolytic power supply; The lifting mechanism is located on the outside of the electrolytic cell (1) and is used to drive the frame mechanism to lift within the electrolytic cell (1); The frame mechanism includes a membrane frame (31) and a limiting frame (34) arranged in combination. A clamping member (32) with a clamping groove is installed at the corner of the two. A bipolar membrane (4), a cation membrane (5) and an anion membrane (6) are respectively installed in the frame mechanism. Both the cation membrane (5) and the anion membrane (6) are provided in pairs. The electrolytic cell (1) is divided into two chambers by a bipolar membrane (4), and the cation membrane (5) and the anion membrane (6) divide the chambers into an acid chamber, a salt chamber and an alkali chamber from left to right. The purging mechanism includes a cleaning table (71) installed between adjacent frame mechanisms, the cleaning table (71) having a built-in bidirectional purging fan (73); The spraying mechanism includes a water pump (81) installed on the cleaning platform (71), and a water pipe (82) that penetrates into the inner cavity of the cleaning platform (71) is installed at the output end of the water pump (81). A spraying end seat (83) for bidirectional spraying is provided on the water pipe (82). The water supply mechanism includes a water supply pump (91) installed on the electrolytic cell (1) for liquid inlet and a liquid outlet seat (92) corresponding to each chamber for liquid outlet.

2. The bipolar water system based on bipolar membrane electrolytic coupling and disinfection according to claim 1, characterized in that, The first electrolytic element (11) is the anode part, and the second electrolytic element (12) is the cathode part. During electrolysis, the first electrolytic element (11) and the second electrolytic element (12) are connected to form a circuit.

3. A bipolar water system based on bipolar membrane electrolytic coupling and disinfection according to claim 1, characterized in that, The lifting mechanism includes a cylinder (21) disposed outside the electrolytic cell (1), a piston rod (22) is installed at the output end of the cylinder (21), and a support plate (23) is connected to the other end of the piston rod (22). An "L-shaped" connecting rod (24) is installed on the support plate (23).

4. A bipolar water system based on bipolar membrane electrolytic coupling and disinfection according to claim 3, characterized in that, The upper part of the membrane frame (31) is equipped with a positioning platform (33) with a slot, and the limiting frame (34) is equipped with a protruding positioning element (35). The limiting frame (34) and the membrane frame (31) are fixed together by the positioning element (35) and the positioning platform (33). The closed whole is provided with four clamping membrane elements (32) at the corner for clamping.

5. A bipolar water system based on bipolar membrane electrolytic coupling and disinfection according to claim 1, characterized in that, The bipolar membrane (4) includes a symmetrically arranged cation exchange layer (41) and an anion exchange layer (43), which are connected by an interfacial catalytic layer (42).

6. A bipolar water system based on bipolar membrane electrolytic coupling and disinfection according to claim 1, characterized in that, The bipolar membrane (4) is provided in three groups. One group is provided in the middle of the electrolytic cell (1), and the remaining two groups are provided on the adjacent sides of the first electrolytic element (11) and the second electrolytic element (12).

7. A bipolar water system based on bipolar membrane electrolytic coupling and disinfection according to claim 6, characterized in that, The cavity between the anion exchange membrane (6) and the bipolar membrane (4) is an acid chamber, the cavity between the cation exchange membrane (5) and the bipolar membrane (4) is an alkali chamber, and the cavity between the cation exchange membrane (5) and the anion exchange membrane (6) is a salt chamber.

8. A bipolar water system based on bipolar membrane electrolytic coupling and disinfection according to claim 1, characterized in that, The purging mechanism also includes ventilation frames (72) installed between the cleaning tables (71), with fans (73) symmetrically mounted on the two ventilation frames (72), each fan (73) having a built-in rotatable blade (74).

9. A bipolar water system based on bipolar membrane electrolytic coupling and disinfection according to claim 1, characterized in that, The spraying mechanism includes a liquid collection box (84) located outside the frame mechanism. The cleaning platform (71), the liquid collection box (84) and the frame mechanism are combined to form a spraying passage.

10. A bipolar water system based on bipolar membrane electrolytic coupling and disinfection according to claim 1, characterized in that, The inlet end of the water pump (81) is connected to the liquid supply device, which is connected to the liquid receiving end seat (92) for obtaining acidic and alkaline cleaning solutions used for cleaning.

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