Electrochemical reduction cycle water hardness treatment device
By designing a composite structure of honeycomb metal plates and steel-lined polytetrafluoroethylene, the problem of insufficient water contact area in traditional electrochemical treatment equipment is solved, achieving the effect of efficiently reducing the hardness of circulating water and extending the equipment life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG SHENXIN ENERGY CONSERVATION & ENVIRONMENTAL PROTECTION TECH CO LTD
- Filing Date
- 2025-09-02
- Publication Date
- 2026-07-24
AI Technical Summary
Traditional electrochemical treatment equipment with flat plate electrode structure has a limited contact area with water flow in the circulating water system, which makes it difficult for calcium and magnesium ions to fully participate in the electrochemical reaction, resulting in low electrolytic conversion efficiency and an inability to quickly and effectively reduce the hardness of circulating water.
The treatment tank, which adopts a honeycomb metal plate design and a steel-lined polytetrafluoroethylene composite structure, combined with a conical structure and water flow disturbance design, forms a rotating vortex to increase the contact area and accelerates the detachment of precipitated particles through the Venturi effect, avoiding electrode scaling and improving the efficiency of electrochemical reaction.
It significantly improves the electrolytic conversion efficiency of calcium and magnesium ions, extends the service life of equipment, reduces maintenance frequency and cost, and enhances the operating efficiency and economy of the circulating water system.
Smart Images

Figure CN224548148U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of treatment equipment technology, and in particular to an electrochemical circulating water hardness reduction treatment device. Background Technology
[0002] In industrial and civilian applications, circulating water systems are widely used, primarily to facilitate heat exchange or meet other process requirements through water circulation. However, during long-term circulation, the concentration of calcium and magnesium ions in the water continuously increases due to water evaporation and ion concentration, leading to increased water hardness.
[0003] Traditional electrochemical treatment equipment mostly uses a flat plate electrode structure, which has obvious technical limitations. The contact mode between the flat plate electrode and the water flow is relatively simple. The water flow is mostly in a laminar state across the electrode surface, resulting in a limited contact area between the water and the electrode. Calcium and magnesium ions cannot fully participate in the electrochemical reaction, resulting in low electrolytic conversion efficiency and an inability to quickly and effectively reduce the hardness of circulating water. Utility Model Content
[0004] The purpose of this utility model is to solve the technical problems mentioned in the background art.
[0005] The present invention adopts the following technical solution: an electrochemical circulating water hardness reduction treatment device, including a treatment tank, a circular leak plate fixedly installed on the inner wall of the treatment tank, an electrochemical component provided on the top of the circular leak plate, the electrochemical component including a honeycomb metal plate, a conical expansion port fixedly installed on the top of the honeycomb metal plate, a conical contraction port fixedly installed on the bottom of the honeycomb metal plate, and a threaded groove opened on the inner wall of the honeycomb metal plate.
[0006] Preferably, an inlet pipe is fixedly installed on the top of the treatment tank, a drain pipe is fixedly installed on the outer wall of the treatment tank, an electric valve is fixedly installed on the outer wall of the drain pipe, and a controller is fixedly installed on the top of the treatment tank. Here, the inlet and drain pipes facilitate the flow of circulating water, and the electric valve allows for easy control of the drainage process.
[0007] Preferably, the controller is electrically connected to the electric valve and the honeycomb metal plate. This electrical connection between the controller and the electric valve and honeycomb metal plate enables coordinated control of the drainage and electrochemical treatment processes, ensuring the coordinated operation of all components of the equipment.
[0008] Preferably, the honeycomb metal plate is made of titanium alloy, and each honeycomb cell has a conical structure, with the diameter of the conical expansion opening being larger than the diameter of the conical contraction opening. Here, the titanium alloy honeycomb metal plate exhibits good electrical conductivity and corrosion resistance, extending the electrode's service life.
[0009] Preferably, the inner wall of the reaction chamber of the treatment tank is a steel-lined polytetrafluoroethylene (PTFE) composite structure. The inner layer of the steel-lined PTFE composite structure is made of PTFE, and the outer layer is a steel structure. Here, in the steel-lined PTFE composite structure, the inner PTFE layer is resistant to acid and alkali corrosion and can adapt to pH fluctuations caused by electrochemical reactions, while the outer steel layer ensures the structural strength of the treatment tank.
[0010] Preferably, the corners of the treatment tank cavity are designed with rounded corners, and the radius of the rounded corners is ≥10mm. Here, the rounded corner design at the corners of the treatment tank cavity avoids the problem of sediment accumulation that easily occurs at right angles and reduces cleaning dead corners.
[0011] Preferably, the rounded corner structure combined with the water flow disturbance design of the honeycomb metal plate can reduce the dead water zone within the treatment tank. Here, the combination of the rounded corner structure and the water flow disturbance design of the honeycomb metal plate further reduces the dead water zone within the treatment tank, making the circulating water flow more evenly within the tank.
[0012] Preferably, the service life of the steel-lined PTFE composite structure is 2-3 times longer than that of the traditional stainless steel cavity. Here, the 2-3 times longer service life of the steel-lined PTFE composite structure compared to the traditional stainless steel cavity significantly reduces the equipment replacement frequency and maintenance costs.
[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. In this invention, by incorporating electrochemical components and employing a honeycomb metal plate design with threaded grooves on the inner wall, the water flow forms a rotating vortex, increasing the contact area by more than 30% compared to flat electrodes, thus significantly improving the electrolytic conversion efficiency of calcium and magnesium ions. Simultaneously, the venturi effect generated by the conical structure creates a localized low-pressure zone, accelerating the detachment of precipitated particles from the electrode surface, preventing electrode scaling, ensuring continuous and efficient electrochemical reactions, rapidly reducing the hardness of circulating water, effectively solving the scale formation problem, and improving the operating efficiency of the circulating water system.
[0014] 2. In this invention, the reaction chamber of the treatment tank adopts a steel-lined polytetrafluoroethylene composite structure. The inner layer of polytetrafluoroethylene is resistant to acid and alkali corrosion and can adapt to pH fluctuations caused by electrochemical reactions, while the outer steel body ensures structural strength. Compared with traditional stainless steel chambers, this extends the service life by 2-3 times. Furthermore, the rounded corner design at the chamber's corners, combined with water flow disturbance, reduces stagnant water zones and sediment accumulation, enhances the chamber's self-cleaning ability, lowers the equipment's maintenance frequency and replacement costs, and improves the long-term economic efficiency and reliability of the equipment. Attached Figure Description
[0015] Figure 1 This utility model provides a three-dimensional structural schematic diagram of an electrochemical circulating water hardness reduction treatment device; Figure 2This utility model provides a schematic diagram of the other side of an electrochemical circulating water hardness reduction treatment device; Figure 3 This utility model provides a schematic diagram of the cross-sectional structure of an electrochemical circulating water hardness reduction treatment device; Figure 4 This utility model presents a schematic diagram of the electrochemical components of an electrochemical circulating water hardness reduction treatment device.
[0016] Legend: 1. Processing tank; 2. Circular strainer; 3. Electrochemical components; 4. Inlet pipe; 5. Drain pipe; 6. Electric valve; 7. Controller; 301. Honeycomb metal plate; 302. Conical constriction opening; 303. Conical expansion opening; 304. Threaded groove. Detailed Implementation
[0017] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0018] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0019] Example 1, please refer to Figures 1-4 This utility model provides a technical solution: an electrochemical circulating water hardness reduction treatment device, including a treatment tank 1, a circular leak plate 2 fixedly installed on the inner wall of the treatment tank 1, an electrochemical component 3 provided on the top of the circular leak plate 2, the electrochemical component 3 including a honeycomb metal plate 301, a conical expansion port 303 fixedly installed on the top of the honeycomb metal plate 301, a conical contraction port 302 fixedly installed on the bottom of the honeycomb metal plate 301, and a threaded groove formed on the inner wall of the honeycomb metal plate 301. 304 A water inlet pipe 4 is fixedly installed on the top of the treatment tank 1, a drain pipe 5 is fixedly installed on the outer wall of the treatment tank 1, an electric valve 6 is fixedly installed on the outer wall of the drain pipe 5, and a controller 7 is fixedly installed on the top of the treatment tank 1. Here, the arrangement of the water inlet pipe 4 and the drain pipe 5 enables the inflow and outflow of circulating water, the electric valve 6 facilitates the control of the drainage process, and the addition of the controller 7 makes automated operation of the equipment possible, making the equipment operation more convenient and conducive to intelligent management.
[0020] The controller 7 is electrically connected to the electric valve 6 and the honeycomb metal plate 301. Here, the controller 7 is electrically connected to the electric valve 6 and the honeycomb metal plate 301, which enables the linkage control of the drainage and electrochemical treatment processes, ensuring that the various components of the equipment work together, improving the stability and accuracy of equipment operation, and reducing manual operation costs.
[0021] The honeycomb metal plate 301 is made of titanium alloy, and each honeycomb cell has a conical structure, with the diameter of the conical expansion port 303 being larger than the diameter of the conical contraction port 302. Here, the titanium alloy honeycomb metal plate 301 exhibits excellent electrical conductivity and corrosion resistance, extending the electrode's service life. The conical structure increases the water flow velocity at the outlet, creating a localized low-pressure zone, which accelerates the detachment of sediment particles from the electrode surface, preventing electrode scaling and ensuring the continuous and efficient electrochemical reaction.
[0022] The inner wall of the reaction chamber of treatment tank 1 is a steel-lined PTFE composite structure. The inner layer of the steel-lined PTFE composite structure is made of PTFE, and the outer layer is a steel structure. Here, in the steel-lined PTFE composite structure, the inner PTFE layer is resistant to acid and alkali corrosion and can adapt to pH fluctuations caused by electrochemical reactions, while the outer steel layer ensures the structural strength of treatment tank 1. This allows the equipment to resist internal chemical corrosion and withstand external pressure, extending the overall service life of the equipment.
[0023] The corners of the cavity of treatment tank 1 are designed with rounded corners, and the radius of the rounded corners is ≥10mm. Here, the rounded corner design at the corners of the cavity of treatment tank 1 avoids the problem of sediment accumulation that is prone to occur at right angles, reduces cleaning dead corners, improves the self-cleaning ability of the equipment, and reduces maintenance frequency and cost.
[0024] The rounded corner structure combined with the water flow disturbance design of the honeycomb metal plate 301 can reduce the dead water zone in the treatment tank 1. Here, the combination of the rounded corner structure and the water flow disturbance design of the honeycomb metal plate 301 further reduces the dead water zone in the treatment tank 1, making the circulating water flow more evenly in the tank, improving the contact efficiency between water and electrodes, and ensuring a more stable conversion effect of calcium and magnesium ions.
[0025] The service life of a steel-lined PTFE composite structure is 2-3 times longer than that of a traditional stainless steel cavity. This significantly reduces equipment replacement frequency and maintenance costs, improving the equipment's economy and practicality.
[0026] Working Principle: Controller 7 instructs inlet pipe 4 to open, allowing circulating water to enter treatment tank 1. The water first contacts the conical expansion port 303 at the top of the honeycomb metal plate 301, achieving initial diffusion of the water flow through its enlarged inlet diameter. In the electrochemical treatment stage, controller 7 supplies power to the honeycomb metal plate 301, causing it to act as an electrode and generate an electrochemical reaction. Circulating water flows through the conical channels of the honeycomb metal plate 301. Because the diameter of the conical contraction port 302 is smaller than that of the conical expansion port 303, the water flow velocity increases at the outlet (Venturi effect, a fluid dynamics phenomenon where the flow velocity increases as the cross-sectional area of a fluid (liquid or gas) decreases while the static pressure decreases). This creates a localized low-pressure zone. Under the action of the threaded groove 304, the water flow forms a rotating vortex, increasing the contact area with the titanium alloy electrode. (More than 30% more than flat electrode) Calcium and magnesium ions are converted into precipitate particles under the action of electrochemical reaction. Under the action of water flow disturbance and low pressure zone, they are separated from the electrode surface. After the precipitation separation stage, the treated water carries the precipitate particles downward and achieves preliminary filtration through the circular filter plate 2. The circular filter plate 2 intercepts larger particles of precipitation, while allowing the treated water to continue to flow downward. The rounded corner structure of the treatment tank 1, together with the water flow disturbance, reduces the formation of dead water zone and avoids the accumulation of sediment at the corner. During the treatment water discharge stage, when the controller 7 detects that the water level in the treatment tank 1 has reached the set value, it instructs the electric valve 6 to open and discharge the treated water through the drain pipe 5. The inner layer of the steel-lined polytetrafluoroethylene composite structure of the subsequent circulation system is made of polytetrafluoroethylene material to resist the corrosion of the equipment caused by pH fluctuations during the treatment process. The controller 7 automatically issues an alarm and takes protective measures to ensure the safe operation of the equipment.
[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. An electrochemical circulating water hardness reduction treatment device, comprising a treatment tank (1), characterized in that: A circular sluice plate (2) is fixedly installed on the inner wall of the processing tank (1). An electrochemical component (3) is provided on the top of the circular sluice plate (2). The electrochemical component (3) includes a honeycomb metal plate (301). A conical expansion port (303) is fixedly installed on the top of the honeycomb metal plate (301). A conical contraction port (302) is fixedly installed on the bottom of the honeycomb metal plate (301). A threaded groove (304) is provided on the inner wall of the honeycomb metal plate (301).
2. The electrochemical circulating water hardness reduction equipment according to claim 1, characterized in that: A water inlet pipe (4) is fixedly installed on the top of the treatment tank (1), a drain pipe (5) is fixedly installed on the outer wall of the treatment tank (1), an electric valve (6) is fixedly installed on the outer wall of the drain pipe (5), and a controller (7) is fixedly installed on the top of the treatment tank (1).
3. The electrochemical circulating water hardness reduction treatment equipment according to claim 2, characterized in that: The controller (7) is electrically connected to the electric valve (6) and the honeycomb metal plate (301).
4. The electrochemical circulating water hardness reduction treatment equipment according to claim 1, characterized in that: The honeycomb metal plate (301) is made of titanium alloy, and its individual honeycomb holes are conical in shape, with the diameter of the conical expansion port (303) being larger than the diameter of the conical contraction port (302).
5. The electrochemical circulating water hardness reduction treatment equipment according to claim 1, characterized in that: The inner wall of the reaction chamber of the treatment tank (1) is a steel-lined polytetrafluoroethylene composite structure. The inner layer of the steel-lined polytetrafluoroethylene composite structure is made of polytetrafluoroethylene, and the outer layer is a steel structure.
6. The electrochemical circulating water hardness reduction treatment device according to claim 1, characterized in that: The corners of the cavity of the treatment tank (1) are designed to be rounded, and the radius of the rounded corners is ≥10mm.
7. The electrochemical circulating water hardness reduction treatment device according to claim 6, characterized in that: The rounded corner structure, combined with the water flow disturbance design of the honeycomb metal plate (301), can reduce the dead water zone in the treatment tank (1).
8. The electrochemical circulating water hardness reduction treatment device according to claim 5, characterized in that: The service life of the steel-lined polytetrafluoroethylene composite structure is 2-3 times longer than that of the traditional stainless steel cavity.