An electrochemical water treatment device

Abstract

The application discloses an electrochemical water treatment device, and relates to the technical field of electrochemical water treatment, which comprises a cathode part, an anode net plate assembly, a scale removing assembly, an elevator, a conical cylinder, a top cover plate and an electric control system. The cathode part comprises an outer cathode cylinder and an inner cathode cylinder, and the outer cathode cylinder and the inner cathode cylinder are made of carbon steel and serve as the cathode of the water treatment device, mainly playing a role of scale formation. The outer cathode cylinder is the reaction chamber shell of the electrochemical water treatment device, and the inner cathode cylinder is arranged in the outer cathode cylinder and connected with the top cover plate. The outer cathode cylinder and the inner cathode cylinder are concentric and arranged with a certain spacing, and the lower part of the outer wall of the outer cathode cylinder is connected with a water inlet pipe, and the upper part is connected with a water outlet pipe. The electrochemical water treatment device can be operated in a full-automatic mode, has high operability, the cathode cylinder is fully contacted with water, the treatment efficiency is higher, and the energy-saving effect is better.

Description

Technical Field

[0001] This invention relates to the field of electrochemical water treatment technology, specifically to an electrochemical water treatment device. Background Technology

[0002] In today's society, with the rapid development of industrial and civil facilities, water consumption is increasing and the requirements are becoming more stringent. At the same time, as the country's requirements for industrial pollution discharge become stricter and the public's call for energy conservation and emission reduction grows louder, the requirements for water quality parameters in production are becoming more demanding. The cost and difficulty of water treatment are also increasing. The chemical method, which was once the most widely used, has begun to show many drawbacks due to the increasingly stringent requirements and increased costs, and can no longer meet the needs of today's society.

[0003] Given the numerous problems currently existing in water use, adopting water treatment methods that meet current and future requirements is becoming increasingly important. Electrochemical water treatment technology, under the influence of an external electric field within a specific electrochemical water treatment device, generates a large number of free radicals through a series of designed chemical reactions, electrochemical processes, or physical processes. These free radicals then utilize their strong oxidizing properties to degrade pollutants in the water. Electrochemical water treatment technology offers excellent corrosion inhibition, scale inhibition, and bactericidal and algae-killing effects. Circulating water using this technology does not require the addition of any chemical agents, and the forced discharge of wastewater is minimal, saving on chemical and makeup water costs, and also resulting in significant energy savings. With its superior emission reduction and environmental protection effects, electrochemical technology, as a clean treatment process, has unparalleled advantages over other water treatment technologies. It is an important method to address the negative issues caused by the use of chemical agents in industrial water treatment. Currently used electrochemical water treatment devices typically have cathodes and anodes (positive and negative electrodes) installed inside the device to carry out electrochemical reactions. A reduction reaction occurs on the cathode surface, synthesizing insoluble substances. These insoluble substances adhere to the cathode to form a scale layer, which plays a role in scale removal. An oxidation reaction occurs on the anode surface, producing a large amount of active oxidizing substances that can sterilize and kill algae in the water.

[0004] Existing electrochemical water treatment devices use a cathode and anode installed alternately within the device's casing for electrochemical reactions. The cathode cylinder in the reaction chamber is either single-layered or double-layered, and the electrochemical water treatment method using the cathode cylinder and anode rod is employed for descaling. However, these devices have limited processing capacity. Furthermore, for electrochemical water treatment devices capable of automatic descaling, scrapers are mounted on rotating or reciprocating components. The scraper's movement (rotation or reciprocating movement) removes scale from the cathode surface. Due to the material limitations of the scraper assembly, it is prone to damage and has a short lifespan, and cannot be designed for large-scale applications. The lifting and scraping structure fails to effectively address the scaling problem on rotating components or lifting linkages, and also fails to address the sealing issues of the lifting drive shaft. Therefore, an electrochemical water treatment device is urgently needed. Summary of the Invention

[0005] Based on this, the purpose of the present invention is to provide an electrochemical water treatment device to solve the technical problems of limited treatment capacity, easy damage to the scraper, scaling of the connecting rod, and sealing in existing electrochemical water treatment devices.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an electrochemical water treatment device, comprising a cathode part, an anode mesh plate assembly, a scale scraping assembly, a lifting platform, a conical cylinder, a top cover plate, and an electrical control system. The cathode part includes an outer cathode cylinder and an inner cathode cylinder, both made of carbon steel. As the cathode of the water treatment device, it mainly functions to form scale. The outer cathode cylinder is the outer shell of the reaction chamber of the electrochemical water treatment device, and the inner cathode cylinder is located inside the outer cathode cylinder and connected to the top cover plate. The outer cathode cylinder and the inner cathode cylinder are concentric and spaced apart. The lower part of the outer wall of the outer cathode cylinder is connected to an inlet pipe, and the upper part is connected to an outlet pipe. A top cover plate is installed on the top of the outer cathode cylinder. A first electric valve is provided on the inlet pipe, and a drain pipe is provided on the inlet pipe after the first electric valve. A second electric valve is installed on the drain pipe.

[0007] The anode mesh plate assembly includes an anode mesh plate, wiring studs, and anode stud mounting components. The anode mesh plate assembly is disposed between the outer cathode cylinder and the inner cathode cylinder and is installed at equal intervals. The anode mesh plate is fastened to the top cover plate by the wiring studs and the anode stud mounting components through the first nut, and the anode mesh plate is locked to the positive terminal of the DC power supply through the second nut.

[0008] The scaling assembly includes a scraper, a lifting drive shaft, a lifting drive shaft seal, a descaling guide sleeve, a lifting connector, a flat gasket, a locking gasket, and a locking nut. A lifting motor drives a lifting platform, which is connected to the lifting connector, which in turn is connected to the lifting drive shaft. The lifting drive shaft is connected to the scraper via a locking nut. The scraper has a ring structure and includes a first scraper surface, a second scraper surface, and a third scraper surface. The first scraper surface mates with the inner surface of the outer cathode cylinder, the second scraper surface mates with the outer surface of the inner cathode cylinder, and the third scraper surface mates with the inner surface of the inner cathode cylinder. The lifting platform drives the scraper to move up and down, thereby cleaning the scale buildup on the surface of the cathode cylinder.

[0009] The conical cylinder is located at the bottom of the outer cathode cylinder, and a third electric valve is installed on the scale discharge pipe at the bottom of the conical cylinder to achieve automatic scale discharge after scraping.

[0010] The top cover plate consists of a sealed cylinder and a lifting platform base installed at its center. The top cover plate is equipped with a drive motor, a lifting platform, a lifting transmission shaft seal, and an anode stud mounting component. A descaling guide sleeve is installed on the lifting transmission shaft seal.

[0011] Preferably, the inner cathode cylinder and anode mesh plate are arranged in multiple layers from the outside to the inside, depending on the required water volume, to increase the cathode and anode area and improve the treatment capacity.

[0012] Preferably, the scraper is made of nylon to ensure that no scale is generated during equipment operation. The scraper has a ring structure and is respectively matched with the inner surface of the outer cathode cylinder and the inner and outer surfaces of the inner cathode cylinder. The number of scraper rings is set according to the number of inner cathode cylinders, and the number of scrapers distributed vertically is set according to the height of the cathode cylinder and the lifting stroke.

[0013] Preferably, the lifting drive shafts are evenly arranged in the electrochemical reaction chamber, so that the scrapers moving up and down between the cathode cylinders are subjected to balanced forces, and the number of lifting drive shafts is reasonably arranged according to the size and structure of the scrapers.

[0014] Preferably, the scraper is connected by a lifting drive shaft evenly distributed in the reaction chamber, and the bottom of the lifting drive shaft has an external thread for connection. The scraper is connected to the lifting drive shaft by a flat washer, a locking washer and a locking nut.

[0015] Preferably, the lifting drive shaft is sealed by a lifting drive shaft seal to ensure that the moving parts do not leak under a specified pressure, and the descaling guide sleeve installed on the lifting drive shaft seal serves as a component for scraping and guiding the lifting drive shaft.

[0016] Preferably, the top cover plate has a sealed cylinder with a closed bottom in the middle, and the lifting rod of the lifting mechanism moves up and down inside it.

[0017] Preferably, the bottom of the outer cathode cylinder is provided with a conical cylinder, and the conical cylinder is provided with an inspection manhole. The conical cylinder serves to store scale on one hand, and its inclination angle facilitates the discharge of scale on the other hand. The manhole on the conical cylinder is used for maintenance, inspection and cleaning of scale.

[0018] Preferably, the outer cathode cylinder and the inner cathode cylinder are used in conjunction with the anode mesh assembly to improve the water quality of the water to be treated.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. The electrochemical water treatment device of the present invention can be equipped with multiple layers of cathode cylinders and multiple anode mesh plates to increase the electrochemical reaction area and improve the electrochemical treatment capacity. The scale removal assembly includes a scraper and a lifting transmission shaft that can drive the scraper to move up and down. When the scraper moves up and down, it can remove the scale on the surface of the inner and outer cathode cylinders. The scraper can have a multi-ring structure, and the specific number of rings is determined according to the number of cathode cylinders. At the same time, the scraper can be evenly distributed on the lifting transmission shaft according to the height of the electrochemical reaction chamber, which can reduce the lifting space of the equipment. The lifting transmission shaft can also be evenly arranged on the top cover plate according to the size of the scraper, and the transmission points can be added on the scraper to avoid damage to the scraper due to uneven force and improve the service life of the scraper. The scale removal guide sleeve of the electrochemical water treatment device can remove the scale on the lifting transmission shaft and seal it, and the sealing effect is good. Attached Figure Description

[0021] Figure 1 This is a structural schematic diagram of the present invention from the main viewing direction;

[0022] Figure 2 This is a schematic diagram of the scraping assembly and top cover plate structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the connection structure of the scraping assembly of the present invention;

[0024] Figure 4 This is an axial view of the scraper surface of the present invention.

[0025] In the diagram: 1. Outer cathode cylinder; 11. Inlet pipe; 12. Outlet pipe; 2. Inner cathode cylinder; 3. Anode mesh plate assembly; 31. Anode mesh plate; 32. Wiring stud; 33. Anode stud mounting component; 4. Scaling assembly; 41. Scraper; 411. First scraper surface; 412. Second scraper surface; 413. Third scraper surface; 42. Lifting drive shaft; 43. Lifting drive shaft seal; 44. Descaling guide sleeve; 45. Lifting connector; 46. Flat gasket; 47. Locking gasket; 48. Locking nut; 5. Lift; 6. Conical cylinder; 7. Top cover plate; 71. Sealed cylinder; 72. Lift base; 8. Electrical control system. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0027] The embodiments of the present invention will now be described.

[0028] Please see Figure 1-4An electrochemical water treatment device includes a cathode part (mainly including an outer cathode cylinder 1 and an inner cathode cylinder 2) and a scale removal assembly 4. The outer cathode cylinder 1 is connected to an inlet pipe 11 and an outlet pipe 12. The water to be treated in the water system enters the reaction chamber formed by the outer cathode cylinder through the inlet pipe 11, and the treated water is output through the outlet pipe 12.

[0029] Furthermore, the inner cathode cylinder 2 and the anode mesh plate assembly 3 can be arranged in multiple layers from the outside to the inside according to the required water volume, which increases the effective working area of ​​the cathode and anode, thereby increasing the scale accumulation area and the volume of the reaction chamber and improving the water treatment capacity of the electrochemical equipment.

[0030] Furthermore, the scraper 41 is made of nylon to ensure that no scale is generated during equipment operation. The scraper 41 has a ring structure and fits into the inner surface of the outer cathode cylinder 1 and the inner and outer surfaces of the inner cathode cylinder 2. The number of scraper rings can be set according to the number of inner cathode cylinders. At the same time, the number of scrapers distributed vertically can be set according to the height of the cathode cylinder and the lifting stroke, reducing the lifting height of the elevator 5 and reducing the operating space of the electrochemical water treatment device.

[0031] Furthermore, the lifting drive shafts 42 are evenly arranged in the electrochemical reaction chamber, so that the scrapers 41 moving up and down between the cathode cylinders are subjected to balanced forces. The number of lifting drive shafts 42 can be reasonably arranged according to the size and structure of the scrapers 41, which can extend the service life of the scrapers and reduce the damage to the scrapers.

[0032] Furthermore, the scraper 41 is connected to the lifting drive shaft 42 evenly distributed in the reaction chamber. The bottom of the lifting drive shaft has an external thread, and the scraper 41 is connected to the lifting drive shaft 42 through a flat washer 46, a locking washer 47 and a locking nut 48.

[0033] Furthermore, the lifting drive shaft 42 is sealed by the lifting drive shaft seal 43 to ensure that the moving parts do not leak under the specified pressure. The descaling guide sleeve 44 installed on the lifting drive shaft seal 43 serves as a component for scraping and guiding the lifting drive shaft 42. Since the lifting drive shaft 42 is in contact with the cathode, it is easy for scale to accumulate. This setting can remove the scale on the drive shaft on the one hand, and seal the cavity on the other hand.

[0034] Furthermore, the top cover plate 7 has a bottom-sealed cylinder 71 in the middle, and the lifting rod of the elevator transmission component moves up and down inside it.

[0035] Furthermore, the bottom of the outer cathode cylinder 1 is provided with a conical cylinder 6, which is equipped with an inspection manhole. The conical cylinder 6 serves two purposes: firstly, it stores scale, and secondly, its inclination angle facilitates the discharge of scale. The manhole on the conical cylinder 6 is used for maintenance, inspection, and cleaning of scale.

[0036] Furthermore, the electrical control system 8 can set the current magnitude and other control parameters of the DC power supply to the electrochemical reaction chamber via its control panel.

[0037] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0038] The terms “center,” “longitudinal,” “lateral,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing the present invention and do not 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 limiting the scope of protection of the present invention.

[0039] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An electrochemical water treatment device, comprising a cathode section, an anode mesh plate assembly (3), a scale scraping assembly (4), a lift (5), a conical cylinder (6), a top cover plate (7), and an electrical control system (8), characterized in that: The cathode part includes an outer cathode cylinder (1) and an inner cathode cylinder (2), and the outer cathode cylinder (1) and the inner cathode cylinder (2) are made of carbon steel. As the cathode of the water treatment device, they mainly play the role of scaling. The outer cathode cylinder (1) is the outer shell of the reaction chamber of the electrochemical water treatment device, and the inner cathode cylinder (2) is set inside the outer cathode cylinder (1) and connected to the top cover plate. The outer cathode cylinder (1) and the inner cathode cylinder (2) are concentric and have a certain distance between them. The lower part of the outer wall of the outer cathode cylinder (1) is connected to the water inlet pipe (11), and the upper part is connected to the water outlet pipe (12). The top cover plate (7) is installed on the top of the outer cathode cylinder (1). The water inlet pipe (11) is equipped with a first electric valve. The water inlet pipe after the first electric valve is equipped with a drainage pipe, and a second electric valve is installed on the drainage pipe. The anode mesh plate assembly (3) includes an anode mesh plate (31), a wiring stud (32), and an anode stud mounting component (33). The anode mesh plate assembly (3) is disposed between the outer cathode cylinder (1) and the inner cathode cylinder (2) and is installed at equal intervals. The anode mesh plate (31) is fastened to the top cover plate (7) by the wiring stud (32) and the anode stud mounting component (33) through the first nut. The anode mesh plate (31) is locked to the positive terminal of the DC power supply through the second nut. The scraping assembly (4) includes a scraper (41), a lifting drive shaft (42), a lifting drive shaft seal (43), a descaling guide sleeve (44), a lifting connector (45), a flat gasket (46), a locking gasket (47), and a locking nut (48). A lifting motor drives a lifting platform (5), which is connected to the lifting connector (45). The lifting connector (45) is connected to the lifting drive shaft (42), and the lifting drive shaft (42) is connected to the scraper (41) via the locking nut. The blade (41) has a ring structure. The scraper (41) includes a first scraper surface (411), a second scraper surface (412), and a third scraper surface (413). The first scraper surface (411) is in contact with the inner surface of the outer cathode cylinder (1), the second scraper surface (412) is in contact with the outer surface of the inner cathode cylinder (2), and the third scraper surface (413) is in contact with the inner surface of the inner cathode cylinder (2). The elevator (5) drives the scraper (41) to move up and down to clean the scale on the surface of the cathode cylinder. The conical cylinder (6) is located at the bottom of the outer cathode cylinder (1), and a third electric valve is installed on the bottom of the conical cylinder (6) to achieve automatic descaling after scraping. The top cover (7) consists of a sealed cylinder (71) and a lifting platform base (72) installed at its center. The top cover (7) is equipped with a drive motor, a lifting platform (5), a lifting transmission shaft seal (43), and an anode stud mounting component (33). A descaling guide sleeve (44) is installed on the lifting transmission shaft seal (43).

2. The electrochemical water treatment device according to claim 1, characterized in that: The inner cathode cylinder (2) and anode mesh plate (31) are arranged in multiple layers from the outside to the inside according to the required water volume, so as to increase the cathode and anode area and improve the treatment capacity.

3. The electrochemical water treatment device according to claim 1, characterized in that: The scraper (41) is made of nylon to ensure that no scale is generated during the operation of the equipment. The scraper (41) has a ring structure and is respectively matched with the inner surface of the outer cathode cylinder (1) and the inner and outer surfaces of the inner cathode cylinder (2). The number of rings of the scraper (41) is set according to the number of inner cathode cylinders (2). At the same time, the number of scrapers (41) distributed vertically is set according to the height of the cathode cylinder and the lifting stroke.

4. The electrochemical water treatment device according to claim 1, characterized in that: The lifting drive shafts (42) are evenly arranged in the electrochemical reaction chamber so that the scraper (41) moving up and down between the cathode cylinders is subjected to balanced forces. The number of lifting drive shafts (42) is reasonably arranged according to the size and structure of the scraper (41).

5. The electrochemical water treatment device according to claim 1, characterized in that: The scraper (41) is connected by a lifting drive shaft (42) evenly distributed in the reaction chamber, and the bottom of the lifting drive shaft (42) has an external thread for connection. The scraper (41) is connected to the lifting drive shaft (42) through a flat washer (46), a locking washer (47) and a locking nut (48).

6. The electrochemical water treatment device according to claim 1, characterized in that: The lifting drive shaft (42) is sealed by the lifting drive shaft seal (43) to ensure that the moving parts do not leak under the specified pressure. The descaling guide sleeve (44) installed on the lifting drive shaft seal (43) serves as the descaling and guiding component of the lifting drive shaft (42).

7. The electrochemical water treatment device according to claim 1, characterized in that: The top cover plate (7) has a bottom closed circular tube sealed cylinder (71) in the middle, and the lifting rod of the elevator (5) moves up and down inside it.

8. The electrochemical water treatment device according to claim 1, characterized in that: The bottom of the outer cathode cylinder (1) is provided with a conical cylinder (6), and the conical cylinder (6) is provided with an inspection manhole. The conical cylinder (6) serves to store scale on one hand, and its inclination angle is conducive to the discharge of scale on the other hand. The manhole on the conical cylinder (6) is used for maintenance, inspection and cleaning of scale.

9. An electrochemical water treatment device according to claim 1, characterized in that: The outer cathode cylinder (1) and inner cathode cylinder (2) work together with the anode mesh assembly (3) to improve the water quality of the water to be treated.

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