An assembly that can improve corrosion resistance of water treatment equipment

Abstract

The utility model relates to water treatment technical field, specifically disclose a kind of can improve the corrosion resistance of water treatment equipment's assembly, comprising: water treatment box, it is the main reaction cavity of water treatment, water treatment box is nested and is installed with effluent treatment tank, and effluent treatment tank side is provided with the drain pipe of through water treatment box, the drain pipe is used to discharge the waste water of processing completion.This can improve the corrosion resistance of water treatment equipment's assembly, and the installation cavity of anode mounting bracket, cathode mounting bracket and the collaborative structure of sealing arc piece are realized breakthrough, and the U-shaped sealing arc piece of fluorine rubber material is fixed in installation cavity by elastic buckle, and closely abuts with anode sheet, cathode sheet, its elastic property can buffer the thermal stress caused by equipment start-stop temperature difference, avoid electrode sheet surface anticorrosive coating and crack due to stress concentration, meanwhile, the sealing effect of the wrapping type structure formed by installation cavity and sealing arc piece effectively blocks the penetration of corrosive medium along the gap.

Description

Technical Field

[0001] This utility model relates to the field of water treatment technology, specifically to a component that can improve the corrosion resistance of water treatment equipment. Background Technology

[0002] Electro-oxidation technology is a commonly used and efficient treatment method in the field of water treatment. Its core is to decompose pollutants in water through electrode electrolysis reaction. It is widely used in industrial wastewater purification, drinking water disinfection and other scenarios. As a key core component of electro-oxidation water treatment equipment, the anode component directly participates in the electrolysis reaction process. Its structural stability and reliability play a decisive role in the overall treatment efficiency of the equipment.

[0003] In actual operation, the interlayer bonding structure of the anode components of electro-oxidation water treatment equipment is simple. Traditional anodes mostly adopt a binary structure of direct coating on the substrate, lacking transition connection. The thermal expansion coefficients of the substrate and the coating do not match, and the temperature difference during equipment start-up and shutdown can easily cause cracks in the coating, providing a penetration channel for corrosive media. In addition, the end connection structure lacks sealing. The existing connection between the anode and the equipment is mostly a direct connection of ordinary flanges without the design of a dedicated sealing groove and anti-corrosion bushing. Corrosive water can easily accumulate in the gaps, causing crevice corrosion. Utility Model Content

[0004] The purpose of this invention is to provide a component that can improve the corrosion resistance of water treatment equipment, thereby solving the problems mentioned in the background art. Traditional anodes often adopt a binary structure with a direct coating on the substrate, which lacks a transition connection. The thermal expansion coefficients of the substrate and the coating are not matched, and the temperature difference during equipment start-up and shutdown can easily cause the coating to crack, providing a penetration channel for corrosive media. In addition, the end connection structure lacks sealing. The existing connection between the anode and the equipment is mostly a direct connection of ordinary flanges without the design of a dedicated sealing groove and anti-corrosion bushing. Corrosive water can easily accumulate in the gaps, causing crevice corrosion.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a component that can improve the corrosion resistance of water treatment equipment, including a water treatment tank, which is the main reaction chamber for water treatment, an outlet water treatment tank is nested inside the water treatment tank, and a drain pipe penetrating the water treatment tank is provided on one side of the outlet water treatment tank, the drain pipe being used to discharge the treated wastewater; A guide plate is installed at the bottom of the water treatment tank, and the inclined surface of the guide plate is inclined towards the drain pipe. An installation frame is installed at the opening at the top of the water treatment tank, and the inner wall of the installation frame is provided with installation grooves at equal intervals. An anode mounting frame and a cathode mounting frame are installed in the installation grooves of the installation frame, respectively. An anode plate is installed in the mounting cavity of the anode mounting bracket, and a cathode plate is installed in the mounting cavity of the cathode mounting bracket. The anode plate and cathode plate are connected to the electrical control box via electrical signals. An aeration pipe is installed on one side of the water treatment tank and is connected to the aeration controller.

[0006] By adopting the above technical solution, the overall structure guides the water flow to be evenly distributed through the guide plate, avoiding local erosion that aggravates corrosion.

[0007] Preferably, the corrosion-resistant lining of the water treatment tank is made of polytetrafluoroethylene, and the surfaces of the water treatment tank, the effluent treatment tank, the lifting rod, the gate, and the mounting frame are all coated with insulating paint.

[0008] By adopting the above technical solution, the surface insulating paint not only forms a secondary anti-corrosion barrier, but also avoids the risk of electrolytic leakage, while reducing direct contact between water and metal structure.

[0009] Preferably, sealing arc plates are provided in the mounting cavities of both the anode mounting bracket and the cathode mounting bracket.

[0010] Using the above technical solution, the sealing arc sheet inside the mounting cavity fills the gap between the electrode sheet and the mounting bracket, blocking the corrosive medium from penetrating along the gap path.

[0011] Preferably, the anode plate abuts against the sealing arc plate inside the mounting cavity of the anode mounting bracket.

[0012] By adopting the above technical solution, the anode plate and the sealing arc plate are in close contact, forming a sealed and corrosion-resistant structure for the anode part, thus extending the service life of the anode mounting bracket and the anode plate.

[0013] Preferably, the sealing arc sheet is made of fluororubber, and the cross-section of the sealing arc sheet is U-shaped. Both ends of the sealing arc sheet are respectively connected to the anode mounting bracket and the cathode mounting bracket by elastic buckles.

[0014] Using the above technical solution, the fluororubber material has good corrosion resistance and is suitable for the strong corrosive environment of electrolysis. The U-shaped cross section enhances the fit and sealing with the electrode sheet, and the elastic buckle fixing method ensures that the sealing arc sheet is stable and does not fall off in the long term.

[0015] Preferably, the cathode sheet abuts against the sealing arc sheet inside the cathode mounting bracket cavity.

[0016] By adopting the above technical solution, the cathode plate and the sealing arc plate abut against each other, and the gap sealing of the cathode part is achieved simultaneously, balancing the anti-corrosion performance of the cathode and anode, and avoiding instability of the electrolysis circuit caused by corrosion of the cathode part.

[0017] Preferably, the aeration pipe has aeration holes evenly distributed on it, and the aeration holes are oriented toward the mounting frame.

[0018] By adopting the above technical solution, the uniform aeration holes and their orientation design enable the bubbles to act precisely on the electrode reaction area, thereby improving the degradation efficiency of pollutants. At the same time, the agitation of the bubbles can reduce the adhesion of corrosion products on the electrode surface.

[0019] Compared with the prior art, the beneficial effects of this utility model are: the component that can improve the corrosion resistance of water treatment equipment: 1. A breakthrough is achieved through the synergistic structure of the mounting cavities of the anode and cathode mounting brackets and the sealing arc sheet. The U-shaped sealing arc sheet made of fluororubber is fixed in the mounting cavity by elastic buckles and closely abuts against the anode and cathode sheets. Its elastic properties can buffer the thermal stress caused by the temperature difference during equipment start-up and shutdown, and prevent the anti-corrosion coating on the electrode surface from cracking due to stress concentration. At the same time, the enveloping structure formed by the mounting cavity and the sealing effect of the sealing arc sheet can block the corrosive medium from penetrating along the gap between the electrode and the mounting bracket. 2. The pre-installed polytetrafluoroethylene (PTFE) lining on the inner wall of the water treatment tank can directly isolate the corrosive medium from contact with the tank substrate. PTFE sealing tape is wrapped around the interface between the drain pipe and the water treatment tank, and fluororubber sealing rings are used at the connection between the aeration pipe and the aeration controller. All of these measures prevent corrosive water from accumulating in the interface gaps. Anti-corrosion sealant is filled in the gaps between the anode mounting bracket, cathode mounting bracket, and mounting frame groove to further block the crevice corrosion path. 3. The inclined structure of the guide plate can guide the water flow to the reaction area evenly, avoiding local water flow scouring and aggravating corrosion. Combined with the uniform aeration hole design of the aeration pipe facing the installation frame, it can enhance the mass transfer efficiency of the electro-oxidation reaction and improve the degradation rate of pollutants. The insulating paint sprayed on the surface of components such as the water treatment tank and the effluent treatment tank forms a secondary anti-corrosion barrier and avoids the risk of electrolytic leakage. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall external three-dimensional structure of this utility model; Figure 2 This is a three-dimensional structural diagram of the water treatment tank, the effluent treatment tank, and the guide plate of this utility model. Figure 3 This is a schematic diagram of the overall internal side section of the present invention. Figure 4 This is a schematic diagram of the mounting frame, anode mounting bracket, and cathode plate mounting style of this utility model; Figure 5 This is a schematic diagram of the internal three-dimensional structure of the sealing arc plate, cathode mounting bracket, and cathode plate of this utility model.

[0021] In the diagram: 1. Water treatment tank; 2. Effluent treatment tank; 3. Drain pipe; 4. Lifting rod; 5. Gate; 6. Mounting frame; 7. Anode mounting bracket; 8. Anode plate; 9. Sealing arc plate; 10. Cathode mounting bracket; 11. Cathode plate; 12. Electrical control box; 13. Aeration controller; 14. Aeration pipe; 15. Guide plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-5 This utility model provides a technical solution: a component that can improve the corrosion resistance of water treatment equipment, including a water treatment tank 1, an outlet water treatment tank 2, a drain pipe 3, a lifting rod 4, a gate 5, a mounting frame 6, an anode mounting bracket 7, an anode plate 8, a sealing arc plate 9, a cathode mounting bracket 10, a cathode plate 11, an electrical control box 12, an aeration controller 13, an aeration pipe 14, and a guide plate 15; Among them, the water treatment tank 1 is the main reaction chamber for water treatment. The water treatment tank 2 is nested inside the water treatment tank 1, and a drain pipe 3 that penetrates the water treatment tank 1 is provided on one side of the water treatment tank 2. The drain pipe 3 is used to discharge the treated wastewater. The corrosion-resistant lining of the water treatment tank 1 is made of polytetrafluoroethylene, and the surfaces of the water treatment tank 1, the effluent treatment tank 2, the lifting rod 4, the gate 5 and the mounting frame 6 are all coated with insulating paint. A guide plate 15 is installed at the bottom inside the water treatment tank 1, and the inclined surface of the guide plate 15 is inclined towards the drain pipe 3. A mounting frame 6 is installed at the opening at the top of the water treatment tank 1, and mounting grooves are equally spaced on the inner wall of the mounting frame 6. An anode mounting bracket 7 and a cathode mounting bracket 10 are respectively installed in the mounting grooves of the mounting frame 6. Referring to the attached diagrams in the instruction manual Figures 1-5 As shown, the water treatment tank 1 with a pre-set PTFE corrosion-resistant lining is fixed to the equipment foundation. The lining is pre-fixed to the inner wall of the tank through a groove to prevent displacement during operation. Then, the outlet water treatment tank 2 is nested into the pre-set groove inside the water treatment tank 1. One end of the drain pipe 3 passes through the side wall of the water treatment tank 1 and is sealed to the interface on one side of the outlet water treatment tank 2. PTFE sealing tape is wrapped around the interface to enhance corrosion resistance and sealing. The guide plate 15 is fixed to the bottom of the water treatment tank 1 with corrosion-resistant bolts. Its slope angle is adjusted to tilt towards the drain pipe 3 to ensure smooth water flow. Silane-modified anti-corrosion adhesive is applied to the bolt connection to prevent crevice corrosion. Then, the mounting frame 6 is fixed to the upper opening of the water treatment tank 1 by welding. The welding points need to be passivated and corrosion-resistant. The anode mounting bracket 7 and cathode mounting bracket 10 are alternately embedded into the equidistant mounting grooves of the mounting frame 6. The gap between the mounting bracket and the groove is filled with anti-corrosion sealant to prevent the accumulation of corrosive media. First, the sealing arc plate 9 is embedded into the mounting cavity of the anode mounting bracket 7 and the cathode mounting bracket 10. The U-shaped sealing arc plate 9 made of fluororubber is fixed to the mounting bracket by elastic buckles at both ends, ensuring that the buckles are fully embedded in the slots to achieve initial sealing. Then, the anode plate 8 and the cathode plate 11 are respectively installed into the corresponding mounting cavity, so that the surface of the electrode plate is in close contact with the sealing arc plate 9 to form a multi-layer sealing and anti-corrosion structure. The aeration pipe 14 is laid along the inner wall of one side of the water treatment tank 1 and fixed to the bottom of the mounting frame 6 by a corrosion-resistant bracket, ensuring that the aeration holes face the mounting frame 6. The other end of the aeration pipe 14 is connected to the aeration controller 13 on the outside of the tank. The interface is sealed with a fluororubber sealing ring. Finally, the electrical control box 12 is fixed in the dry area next to the water treatment tank 1 and electrically connected to the anode plate 8, cathode plate 11 and aeration controller 13 respectively through anti-corrosion wires. A sealed waterproof joint is installed where the wires pass through the tank, and an anti-corrosion sealing ring is nested in the inner wall of the joint. An anode plate 8 is installed in the mounting cavity of the anode mounting bracket 7, and a cathode plate 11 is installed in the mounting cavity of the cathode mounting bracket 10. The anode plate 8 and the cathode plate 11 are connected to the electrical control box 12 via electrical signals. An aeration pipe 14 is installed on one side of the water treatment tank 1, and the aeration pipe 14 is connected to the aeration controller 13. A sealing arc plate 9 is provided in the mounting cavities of both the anode mounting bracket 7 and the cathode mounting bracket 10. The anode plate 8 abuts against the sealing arc plate 9 in the mounting cavity of the anode mounting bracket 7. The sealing arc plate 9 is made of fluororubber, and the cross section of the sealing arc plate 9 is U-shaped. The two ends of the sealing arc plate 9 are respectively snapped into the anode mounting bracket 7 and the cathode mounting bracket 10 by elastic buckles. The cathode plate 11 abuts against the sealing arc plate 9 in the mounting cavity of the cathode mounting bracket 10. Aeration holes are evenly distributed on the aeration pipe 14, and the aeration holes are set towards the mounting frame 6. Referring to the attached diagrams in the instruction manual Figures 1-5 As shown, after the wastewater to be treated flows into the water treatment tank 1 through the inlet, the guide plate 15 at the bottom guides the water flow evenly to the electrode reaction area through the inclined surface, avoiding local water accumulation that could cause scouring and wear on the inner wall of the tank. The polytetrafluoroethylene lining of the inner wall of the water treatment tank 1 is in direct contact with the wastewater. With its excellent acid and alkali resistance and oxidation resistance, it resists the erosion of corrosive media in the water. The anti-scaling coating on the surface of the guide plate 15 simultaneously reduces the adhesion of pollutants and lowers the risk of local corrosion. The operator starts the electrolysis system through the electrical control box 12. The electrical control box 12 transmits a stable electrical signal to the anode plate 8 and the cathode plate 11. The two form an electrolysis circuit in the water body, generating strong oxidizing substances through electro-oxidation reaction to degrade pollutants in the water body. During this process, the sealing arc plate 9 in the mounting cavity of the anode mounting frame 7 and the cathode mounting frame 10 plays a key role: the U-shaped structure fits tightly with the electrode plate, blocking the seepage of wastewater and reaction products along the gap between the electrode and the mounting frame, and preventing the mounting frame from rusting; the fluororubber material itself has corrosion resistance and can withstand the erosion of the electrolysis environment for a long time. At the same time, the iridium oxide-tin dioxide composite coating on the surface of the anode plate 8 and the titanium nitride coating on the surface of the cathode plate 11 effectively resist the erosion of strong oxidizing substances in the electro-oxidation reaction and ensure the activity of the electrode plate; Simultaneously with the electro-oxidation reaction, the operator activates the aeration controller 13 via the electrical control box 12. The aeration controller 13 adjusts the air intake of the aeration pipe 14, allowing bubbles to be released through the uniform aeration holes of the mounting frame 6. As the bubbles rise, they agitate the water, enhancing the mass transfer between pollutants and the electrode reaction area, thus improving degradation efficiency. The epoxy resin anti-corrosion coating on the surface of the aeration pipe 14 isolates water corrosion and extends the service life of the aeration components. The sealed interface between the aeration controller 13 and the aeration pipe 14 prevents corrosive water from flowing back and damaging the control components. After electro-oxidation and aeration, the water flows into the effluent treatment tank 2 nested within the water treatment tank 1 under the continuous guidance of the guide plate 15, completing subsequent sedimentation and filtration. The finally treated wastewater that meets the standards is discharged through the drain pipe 3. The sealed interface between the drain pipe 3 and the effluent treatment tank 2 prevents leakage. Throughout the process, the insulating paint on the surfaces of components such as the water treatment tank 1 and the effluent treatment tank 2 plays a dual role: preventing the risk of leakage during electrolysis and forming a secondary anti-corrosion barrier, reducing direct contact between the water and the metal structure. The anodized anti-corrosion film on the anode mounting bracket 7 and the cathode mounting bracket 10 further enhances the corrosion resistance of the mounting components, ensuring the long-term stable operation of the components.

[0024] Working principle: When using this component that can improve the corrosion resistance of water treatment equipment, the wastewater to be treated enters the water treatment tank 1 and flows along the guide plate 15 at the bottom of the tank. The inclined surface of the guide plate 15 is inclined towards the drain pipe 3 to ensure that the water flows evenly to the electrode reaction area and avoids local accumulation and scouring of the tank. At this time, the electrical control box 12 is started and transmits electrical signals to the anode plate 8 and the cathode plate 11. The two are fixed in the mounting groove of the mounting frame 6 through the anode mounting bracket 7 and the cathode mounting bracket 10 respectively, forming an electrolytic circuit, and degrading water pollutants through electro-oxidation reaction. The anode plate 8 and cathode plate 11 abut against the sealing arc plate 9 inside the mounting cavity. This U-shaped sealing arc plate 9, made of fluororubber, is fixed by elastic clips, preventing corrosive media from penetrating along the gaps and protecting the connection between the mounting frame and the electrodes. Simultaneously, the aeration controller 13 drives the aeration pipe 14 to release air bubbles towards the uniform aeration holes of the mounting frame 6, enhancing water mass transfer and improving electro-oxidation efficiency. The reacted wastewater flows into the effluent treatment tank 2 nested within the water treatment tank 1, and is finally discharged through the drain pipe 3 that runs through the tank. Throughout the process, the polytetrafluoroethylene lining of the water treatment tank 1 and the insulating paint and anti-corrosion coating on the surfaces of various components provide multiple layers of protection, ensuring stable operation of the equipment in a corrosive environment and increasing its overall practicality.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A component that can improve the corrosion resistance of water treatment equipment, comprising: Water treatment tank (1), which is the main reaction chamber for water treatment, is nested inside the water treatment tank (1) and a water treatment tank (2) is provided on one side of the water treatment tank (2) through the water treatment tank (1). The water treatment tank (2) is used to discharge the treated wastewater. The water treatment tank (1) is characterized by having a guide plate (15) installed at the bottom inside, with the inclined surface of the guide plate (15) tilted toward the drain pipe (3), and an installation frame (6) installed at the opening at the top of the water treatment tank (1), with installation grooves evenly spaced on the inner wall of the installation frame (6), and an anode mounting bracket (7) and a cathode mounting bracket (10) respectively installed in the installation groove of the installation frame (6). The anode mounting bracket (7) has an anode plate (8) installed in its mounting cavity, and the cathode mounting bracket (10) has a cathode plate (11) installed in its mounting cavity. The anode plate (8) and the cathode plate (11) are connected to the electrical control box (12) via electrical signals. An aeration pipe (14) is installed on one side of the water treatment tank (1), and the aeration pipe (14) is connected to the aeration controller (13).

2. A component for improving the corrosion resistance of water treatment equipment according to claim 1, characterized in that: The corrosion-resistant lining of the water treatment tank (1) is made of polytetrafluoroethylene, and the surfaces of the water treatment tank (1), the effluent treatment tank (2), the lifting rod (4), the gate (5) and the mounting frame (6) are all coated with insulating paint.

3. A component for improving the corrosion resistance of water treatment equipment according to claim 1, characterized in that: Both the anode mounting bracket (7) and the cathode mounting bracket (10) are provided with sealing arc plates (9) in their mounting cavities.

4. A component for improving the corrosion resistance of water treatment equipment according to claim 1, characterized in that: The anode plate (8) abuts against the sealing arc plate (9) inside the mounting cavity of the anode mounting bracket (7).

5. A component for improving the corrosion resistance of water treatment equipment according to claim 3, characterized in that: The sealing arc plate (9) is made of fluororubber, and the cross section of the sealing arc plate (9) is U-shaped. The two ends of the sealing arc plate (9) are respectively connected to the anode mounting bracket (7) and the cathode mounting bracket (10) by elastic buckles.

6. A component for improving the corrosion resistance of water treatment equipment according to claim 1, characterized in that: The cathode plate (11) abuts against the sealing arc plate (9) inside the mounting cavity of the cathode mounting frame (10).

7. A component for improving the corrosion resistance of water treatment equipment according to claim 1, characterized in that: Aeration holes are evenly distributed on the aeration pipe (14), and the aeration holes are oriented toward the mounting frame (6).

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