Ozone generating module adapted to water flow piping

Abstract

The present application relates to the field of ozone generation module, specifically to a water flow pipeline type ozone generation module, comprising: a cavity formed by the closure of a shell and a bottom cover, provided with a water inlet and a water outlet; the membrane electrode stack of a cathode, a proton exchange membrane and a composite diamond membrane anode is clamped by an electrode isolation support in the cavity, and is powered through a wiring terminal and a conductive fastener; the flow cross-sectional area of the water outlet is smaller than that of the water inlet, forming back pressure and increasing outlet flow rate under constant flow, prompting the generated ozone of the anode to dissolve in place, improving the dissolution efficiency and stability. An adjustable cross-sectional area unit is additionally provided on the water outlet side, cooperating with the flow, temperature and pressure difference sensors and control circuit, continuously or stepwise adjusting the effective cross-sectional area of the water outlet according to the target concentration and safety energy consumption constraint, realizing efficient and stable output across the working condition.

Description

Technical Field

[0001] This invention relates to the field of ozone generating modules, specifically an ozone generating module adapted for water flow pipes. Background Technology

[0002] There are two common ozonation pathways in the current water treatment field: one is an external generator combined with Venturi jet or microporous aeration for gas-liquid mixing; the other is to directly integrate the electrochemical ozone unit into the pipeline to form an in-situ ozone-producing pipeline module. The former has high requirements for equipment size and safety isolation, and the mixing efficiency is limited by hydraulic conditions and bubble size; although the latter has a compact structure, its hydraulic geometry is mostly of constant cross section or empirical narrowing, lacking a quantitative design and verification path for the relationship between the cross-sectional areas of the inlet and outlet.

[0003] Against this backdrop, existing pipeline-type devices generally suffer from the following technical defects: First, a small narrowing of the cross-section or arbitrarily set section makes it difficult to form a stable back pressure at the rated flow rate, resulting in insufficient average flow velocity at the outlet and low interface renewal frequency and volumetric mass transfer coefficient. Second, bubble retention and gas film interference are prone to occur near the anode wall, leading to an unstable electrochemical interface and a concentration of dissolved ozone that is sensitive to and fluctuates with flow rate and water temperature. Third, simply increasing the electrical power to compensate for insufficient mass transfer often results in increased unit energy consumption, localized heating, and increased side reactions, making it difficult to balance energy efficiency and stability, thus restricting in-situ dissolution efficiency and operational stability.

[0004] Furthermore, while a fixed geometric ratio can significantly improve the aforementioned problems over a wider range of operating conditions, there are still limitations to its applicability: in some operating conditions, a more precise trade-off and switching between mass transfer requirements and hydraulic safety is necessary. Based on this, the industry also has an objective need for an implementation path that allows for appropriate adjustment of the cross-sectional area without altering the basic structure. Summary of the Invention

[0005] The purpose of this invention is to provide an ozone generating module adapted to water flow pipes, so as to solve the technical problems mentioned in the background art.

[0006] Based on the above ideas, the present invention provides the following technical solution:

[0007] An ozone generator module adapted for use in water pipes includes:

[0008] The cavity is formed by the mating of the outer shell and the bottom cover. The two sides of the cavity are respectively provided with an inlet and an outlet that communicate with the cavity. The cavity is provided with a membrane electrode stack held by an electrode isolation bracket (8). The membrane electrode stack includes a cathode (5), a proton exchange membrane (6) and a composite diamond membrane anode (7) in sequence. It is also provided with a wiring terminal (2) for power input and a conductive fastener.

[0009] The cross-sectional area of ​​the outlet (42) is smaller than that of the inlet (41);

[0010] The ratio of the cross-sectional area of ​​the inlet (42) to the outlet (41) is 2:1;

[0011] The outer shell is specifically a plastic outer shell (3), the bottom cover is specifically a plastic bottom cover (11), and the conductive fastener is specifically a conductive nut (1).

[0012] By fitting the outer shell and bottom cover together to form a sealed cavity, and setting inlet and outlet on both sides of the cavity, the water flow forms a single-pass channel. Inside the cavity, a membrane electrode stack structure of cathode-proton exchange membrane-composite diamond membrane anode held by an electrode isolation bracket is used to achieve electrochemical in-situ ozone production. The flow cross-sectional area of ​​the outlet is smaller than that of the inlet. Under constant volume flow conditions, the average flow velocity at the outlet is significantly increased according to the continuity relationship, and a stable back pressure is established in the cavity. This enhances the interface renewal and mass transfer near the anode wall, promotes the immediate dissolution of ozone into the aqueous phase, improves the dissolved ozone concentration and unit energy consumption utilization rate, and suppresses the interference of bubble retention on discharge stability, ensuring stable output of the device under continuous operating conditions such as drinking water.

[0013] Preferably, the electrode isolation bracket (8) is used to insulate and isolate the cathode (5) from the composite diamond film anode (7) and to position and fix the film electrode stack in the cavity.

[0014] Electrode isolation brackets are used to insulate and isolate the cathode and the composite diamond membrane anode, and to position and fix the membrane electrode stack within the cavity. This ensures the creepage distance between electrodes and electrical insulation safety, avoiding the risk of short circuits and leakage. At the same time, it achieves flat registration and in-plane position stability of the cathode, membrane, and anode, reducing poor contact and sealing failure caused by electrode warping and edge lifting. This improves discharge uniformity and long-term operational reliability, providing structural support for high-concentration, long-term in-situ ozone production.

[0015] Preferably, the cavity is provided with a groove for placing the elastic tube. After the silicone tube (4) is aligned with the plastic shell (3) and the plastic bottom cover (11), it applies pressure to the membrane electrode stack so that the cathode (5) is in close contact with the proton exchange membrane (6) and the composite diamond membrane anode (7).

[0016] The elastic tubing is specifically a silicone tube (4).

[0017] The inner periphery of the cavity is provided with grooves for accommodating flexible tubing. After the outer shell and the bottom cover are aligned, continuous surface pressure is applied to the membrane electrode stack. This allows for long-term adhesion of the cathode, proton exchange membrane, and composite diamond membrane anode without the need for high pre-tightening bolts, significantly reducing electrode-membrane contact resistance and suppressing edge leakage. This flexible pre-tightening provides adaptive compensation for the device under thermal cycling, water hammer impact, and vibration conditions, thereby maintaining the stability of the electrochemical interface and reliable sealing, reducing maintenance frequency, and extending service life.

[0018] Preferably, an anode conductive sheet (9) is provided, which electrically connects the composite diamond film anode (7) and the conductive nut (1).

[0019] By setting up an anode conductive plate and electrically connecting it to the composite diamond film anode and the conductive fastener, a short-path, low-impedance anode current loop can be formed, reducing voltage drop and heat generation along the wire path and improving the conversion efficiency of electrical energy into effective electrochemical reactions. At the same time, the conductive plate serves as a controllable interface, which is beneficial for assembly consistency and subsequent maintenance and replacement, ensuring the reliability and repeatability of the anode electrical connection.

[0020] Preferably, an electrode fixing member is provided, which is used to clamp the membrane electrode stack and isolate the reaction zone from the power supply zone;

[0021] The electrode fixing component is specifically an electrode fixing screw (10).

[0022] Electrode fixing components are used to clamp the membrane electrode stack and isolate the reaction area from the power supply area. They can achieve axial clamping of the stack and functional division of the area without increasing the complexity of the housing. On the one hand, they suppress contact instability and partial discharge caused by loosening inside the stack. On the other hand, they block the water path from wetting the terminal cavity, reducing the risk of moisture, corrosion and creepage, thereby improving the electrical safety and environmental adaptability of the whole machine.

[0023] Preferably, the plastic outer shell (3) and the plastic bottom cover (11) are fastened together to achieve environmental sealing of the cavity.

[0024] The fastener is a fixing screw (12).

[0025] Fasteners are used to align and fix the outer shell and the bottom cover to achieve environmental sealing of the cavity, forming a reliable and resettable structural connection that facilitates assembly and maintenance. This mating seal not only ensures the cavity's pressure resistance and leak-proofness under back pressure conditions, but also reduces the chance of external contaminants entering the reaction chamber, further stabilizing the working environment of the membrane electrode and improving the device's durability and consistency.

[0026] The terminal block (2) and the conductive nut (1) are located at the wall penetration position of the plastic shell (3). The conductive nut (1) is used to fix the terminal block (2) and electrically connect it with the membrane electrode stack to realize the positive and negative polarity power supply lead-out.

[0027] By placing the wiring terminals and conductive fasteners at the wall penetration points of the housing, and using the conductive fasteners to fix the wiring terminals and electrically connect them to the membrane electrode stack, reliable power supply leads of positive and negative polarities can be achieved. This through-wall lead-out ensures a reliable electrical connection while taking into account the requirements of housing sealing and insulation distance, reducing contact deterioration and safety hazards caused by water seepage and condensation, and improving the electrical safety and long-term operational stability of the whole machine.

[0028] The workflow is as follows:

[0029] Before use, confirm the polarity and tightness of the wiring terminals (2), check the sealing of the plastic shell and plastic bottom cover and the positioning of the electrode isolation bracket (8), so that the membrane electrode stack of the cathode (5), proton exchange membrane (6) and composite diamond membrane anode (7) is evenly attached under the action of the silicone tube (4); water is introduced through the inlet (41) to expel the air in the gap between the cavity and the electrode and establish a constant flow rate. Because the cross-sectional area of ​​the outlet (42) is smaller than that of the inlet (41), a moderate back pressure is formed in the cavity and the outlet flow rate is increased; then the power is turned on, the positive electrode is applied to the composite diamond membrane anode (7) through the conductive nut (1) and the anode conductive plate (9), and the negative electrode is applied to the cathode (5). The system provides selective proton conduction and inhibits gas cross-contamination. At this time, water molecules are directly electrochemically oxidized on the surface of the composite diamond membrane anode (7) with a high oxygen evolution overpotential to generate ozone. A reduction reaction occurs on the cathode (5) side to generate hydrogen. The ozone generated near the anode wall immediately dissolves into the water flowing over the electrode surface. The back pressure and high flow rate caused by the difference in cross-sectional area between the inlet and outlet promote interface renewal and mass transfer. Ozone-containing water is continuously output through the outlet (42). During operation, the pressure difference, voltage / current and ozone concentration in the outlet are monitored and the current density is adjusted as needed. When shutting down, the system is executed according to the principle of "first disconnecting the power, then rinsing with clean water through the inlet (41) until there is no residual ozone in the outlet". The status of the silicone tube (4) is routinely checked and reset.

[0030] The technical solution of the present invention may include the following beneficial effects:

[0031] This invention features a smaller outlet cross-sectional area than inlet cross-sectional area. Under constant volumetric flow conditions, it increases the average flow velocity at the outlet based on continuity and forms a stable back pressure within the cavity. This enhances the shear and interface renewal frequency of the membrane electrode working area, suppresses bubble retention and gas film formation, and promotes the immediate dissolution of ozone generated on the anode side into the aqueous phase. This results in higher dissolved ozone concentration and unit energy consumption utilization, while maintaining a stable output of ozone concentration even under fluctuating flow conditions.

[0032] Secondly, this invention employs a membrane electrode stack (cathode—proton exchange membrane—composite diamond membrane anode) configuration held by an electrode isolation bracket. Combined with the clamping of the electrode fixing component and the surface pressure pre-tightening of the elastic tube, this ensures long-term adhesion between the electrode and the membrane, reduces contact resistance, and results in a more uniform distribution of electric field and current between the electrodes. The composite diamond membrane anode has a high oxygen evolution overpotential, which, combined with the selective conduction of the proton exchange membrane, can effectively suppress side reactions and product cross-conversion, improve electrochemical conversion efficiency and long-term operational reliability, thereby achieving stable and repeatable in-situ ozone production under back pressure and high flow rate conditions.

[0033] Furthermore, this invention utilizes a repositionable, back-pressure resistant structural connection formed by the sealing of the outer shell and bottom cover with fasteners. The through-wall lead-out of the wiring terminals and conductive fasteners meets the creepage distance and sealing requirements, reducing the risk of moisture and leakage. The entire system is a pipe-type integrated module with standard interfaces and a compact size, making it easy to connect to existing water circuits. It achieves good dissolution results without the need for large mixers or complex jets, and is convenient for maintenance and replacement. Manufacturing and system integration costs are reduced simultaneously, making it suitable for continuous operation conditions such as drinking water purification and circulating water treatment. Attached Figure Description

[0034] Figure 1 This is an exploded view of an ozone generating module adapted to a water pipe according to the present invention.

[0035] Figure 2 This is a cross-sectional view of an ozone generating module adapted to a water flow pipe according to the present invention.

[0036] Figure 3 This is a top view of a plastic housing adapted to a water pipe type ozone generating module according to the present invention.

[0037] In the diagram: 1. Conductive nut; 2. Terminal block; 3. Plastic housing; 4. Silicone tubing; 5. Cathode; 6. Proton exchange membrane; 7. Composite diamond membrane anode; 8. Electrode isolation bracket; 9. Anode conductive sheet; 10. Electrode fixing screw; 11. Plastic bottom cover; 12. Fixing screw. Detailed Implementation

[0038] Example 1

[0039] like Figure 1-3 ,

[0040] An ozone generator module adapted for use in water pipes includes:

[0041] The cavity is formed by the mating of the outer shell and the bottom cover. The two sides of the cavity are respectively provided with an inlet and an outlet that communicate with the cavity. The cavity is provided with a membrane electrode stack held by an electrode isolation bracket (8). The membrane electrode stack includes a cathode (5), a proton exchange membrane (6) and a composite diamond membrane anode (7) in sequence. It is also provided with a wiring terminal (2) for power input and a conductive fastener.

[0042] The cross-sectional area of ​​the outlet (42) is smaller than that of the inlet (41);

[0043] The ratio of the cross-sectional area of ​​the inlet (42) to the outlet (41) is 2:1;

[0044] The outer shell is specifically a plastic outer shell (3), the bottom cover is specifically a plastic bottom cover (11), and the conductive fastener is specifically a conductive nut (1).

[0045] Specifically, the electrode isolation bracket (8) is used to insulate and isolate the cathode (5) from the composite diamond film anode (7) and to position and fix the film electrode stack in the cavity.

[0046] Specifically, the cavity is provided with a groove for placing the elastic tube. After the silicone tube (4) is aligned with the plastic shell (3) and the plastic bottom cover (11), it applies pressure to the membrane electrode stack so that the cathode (5) is in close contact with the proton exchange membrane (6) and the composite diamond membrane anode (7).

[0047] The elastic tubing is specifically a silicone tube (4).

[0048] Specifically, an anode conductive sheet (9) is provided, which is electrically connected to the composite diamond film anode (7) and the conductive nut (1).

[0049] Specifically, an electrode fixing component is provided, which is used to clamp the membrane electrode stack and isolate the reaction zone from the power supply zone;

[0050] The electrode fixing component is specifically an electrode fixing screw (10).

[0051] Specifically, the plastic outer shell (3) and the plastic bottom cover (11) are fastened together to achieve environmental sealing of the cavity.

[0052] The fastener is a fixing screw (12).

[0053] The terminal block (2) and the conductive nut (1) are located at the wall penetration position of the plastic shell (3). The conductive nut (1) is used to fix the terminal block (2) and electrically connect it with the membrane electrode stack to realize the positive and negative polarity power supply lead-out.

[0054] The working process is as follows:

[0055] Before use, confirm the polarity and fastening state of the terminal (2), check the sealing fit between the plastic casing and the plastic bottom cover and the positioning of the electrode isolation bracket (8), so that the membrane electrode stack composed of the cathode (5), the proton exchange membrane (6) and the composite diamond membrane anode (7) is evenly attached under the action of the silica gel tube (4); water enters through the water inlet (41) to exhaust the air in the cavity and the gaps between electrodes, and a constant flow rate is established. Since the flow cross-sectional area of the water outlet (42) is smaller than that of the water inlet (41), a moderate back pressure is formed inside the cavity and the outlet flow velocity is increased; then the power is turned on, the positive electrode is applied to the composite diamond membrane anode (7) through the conductive nut (1) and the anode conductive sheet (9), and the negative electrode is applied to the cathode (5). The proton exchange membrane (6) provides selective proton conduction and inhibits gas crossover. At this time, direct electrochemical oxidation of water molecules is carried out on the surface of the composite diamond membrane anode (7) at a high oxygen evolution overpotential to generate ozone, and a reduction reaction occurs on the cathode (5) side to generate hydrogen; the ozone generated near the anode wall immediately dissolves into the water flowing through the electrode surface. The back pressure caused by the cross-sectional area difference between the water inlet and outlet and the high flow velocity promote interface renewal and mass transfer, and the ozone-containing water is continuously output through the water outlet (42); during operation, the pressure difference, voltage / current and outlet ozone concentration are monitored, and the current density is adjusted as required. When shutting down, follow the procedure of "cut off power first, then rinse with clean water from the water inlet (41) until no residual ozone is discharged from the outlet", and routinely check the state of the silica gel tube (4) to complete resetting.

[0056] Working principle:

[0057] Under the working condition of constant volume flow Q, the present invention sets the flow cross-sectional area A of the water outlet out to be designed smaller than the flow cross-sectional area A of the water inlet in , according to the continuity relation we can obtain:

[0058]

[0059] That is, due to Aout<Ain, the average outlet flow velocity v out is higher than the average inlet flow velocity v in , under the condition of the same elevation and ignoring secondary losses, the cavity back pressure increment can be approximately obtained by simplified Bernoulli equation:

[0060]

[0061] For example, when A in :A out =2:1, we have v out ≈2v in , Δp≈1.5 ρ v in 2This creates a stable back pressure in the membrane electrode working area and increases the shear and interface renewal frequency at the outlet, prompting the ozone generated at the anode to dissolve into the aqueous phase more quickly and improving the unit energy consumption utilization rate. Example

[0062] Based on Embodiment 1, the device consists of a shell and a bottom cover joined together to form a cavity, with an inlet and an outlet on both sides of the cavity. A membrane electrode stack held by an electrode isolation bracket is disposed within the cavity. Back pressure is established at a constant flow rate by using a smaller cross-sectional area at the outlet than at the inlet, thereby increasing the outlet flow velocity and improving the in-situ dissolution efficiency of ozone in water. While this original technical solution is functional, the inlet / outlet cross-sectional area ratio is a fixed value, making it difficult to adapt to changes in flow rate, temperature, current density, and allowable pressure difference, resulting in high energy consumption or insufficient dissolution in some scenarios.

[0063] Based on this, an adjustable cross-sectional area unit (including a valve seat, a movable cone or elastic diaphragm, a graduated ring, and an actuation mechanism) is added to the outlet side, and equipped with a flow sensor, temperature sensor, differential pressure sensor, and control circuit. This unit is used to continuously or progressively adjust the effective flow cross-sectional area of ​​the outlet according to the target ozone concentration and safety / energy consumption constraints during operation. Specifically, it includes:

[0064] S1. Power-on self-test, establish communication with flow sensor, temperature sensor, and differential pressure sensor; read volumetric flow rate Q, water temperature T, and real-time differential pressure Δp; load the target effluent ozone concentration Ct and the upper limit of allowable differential pressure Δpmax corresponding to the operating condition; optional reading of current density setting j and anode effective area Ae.

[0065] S2. Turn on the water supply to purge the air from the cavity and electrode gaps; place the adjustable cross-sectional area unit in the initial calibration position (e.g., the middle opening) to obtain a controllable reference back pressure and reference outlet flow rate; confirm that the membrane electrode stack is properly bonded and that there is no abnormal leakage or abnormal resistance.

[0066] S3. Connect to an external power source, with the positive terminal connected to the composite diamond membrane anode and the negative terminal connected to the cathode; operate at the set current density j; continuously monitor the volumetric flow rate Q, water temperature T, real-time pressure difference Δp, and effluent ozone concentration (online or by sampling), and send the data to the controller for subsequent calculations.

[0067] S4. Based on the current volumetric flow rate Q, water temperature T, current density j, and target C t Calculate the minimum area ratio lower bound X required to achieve the predetermined dissolution level. The controller is determined according to the following formula:

[0068]

[0069] Where: τ is the effective residence time, β(T),m is the temperature-calibrated empirical mass transfer parameter; η(j,T) is the ozone Faraday efficiency; F is the Faraday constant; C in This represents the initial ozone concentration in the influent.

[0070] This formula couples the flow rate Q, temperature T (representing mass transfer capacity via β(T)), current density j (representing Faraday efficiency via η(j,T)) with demand-side factors such as anode area Ae to obtain the minimum outlet flow velocity v required for a given target effluent concentration Ct. out min This is then converted into a lower bound X for the area ratio. The technical essence is to quantify the minimum constriction strength necessary to achieve the set mass transfer target.

[0071] Compared to a fixed ratio, this formula provides a quantitative lower limit for meeting the mass transfer target, avoiding insufficient dissolution due to insufficient narrowing or ineffective energy consumption due to blindly increasing the current, thereby enabling the selection of a reasonable cross-sectional area ratio under different operating conditions.

[0072] S5. Based on the current volumetric flow rate Q, water temperature T, and corresponding water density Δpmax, calculate the upper limit Y of the allowable area ratio of the system without exceeding the limits:

[0073]

[0074] This formula uses the upper limit of allowable pressure difference Δpmax and the medium density ρ(T) as constraints to obtain the maximum allowable outlet flow velocity v without exceeding the limits. out max Based on this, the area ratio is converted to the upper bound Y=R. max Its technical essence lies in quantifying the maximum narrowing boundary under the constraints of the structure and pump / pipeline. A conservative approximation is made at the same elevation, ignoring secondary losses; Δp max The value is determined by a combination of factors including casing pressure resistance, pump curve, noise / vibration limits, and cavitation margin; ρ(T) varies with temperature.

[0075] Compared to experience-based selection, this formula provides a quantitative upper limit for compliance boundaries, ensuring that the structural and hydraulic safety red lines are not exceeded throughout the entire lifespan and all operating conditions, thereby solving the engineering pain point of how to avoid overpressure and abnormalities caused by pursuing dissolution.

[0076] S6. The controller calculates the target area ratio R under the constraints of X and Y. opt And output the execution volume, specifically:

[0077]

[0078]

[0079] This formula performs interval clipping between the lower bound of demand X and the upper bound of safety Y: first, using max(X,R) min To ensure mass transfer and noise limits, then use min( Y) Ensure that the pressure difference does not exceed the limit, thereby obtaining a unique and executable target area ratio R. opt And instantly mapped to the effective area of ​​the target outlet.

[0080] R min ≥1 is given by structural noise; when an infeasible region appears when X>Y, a linkage correction strategy needs to be triggered.

[0081] Logical relationship:

[0082] If X≤Y: a feasible region exists, and R can be directly obtained using the formula. opt Perform opening adjustment;

[0083] If X > Y: the demand exceeds the safety limit, the controller increases j or decreases Q according to priority, looping S4–S6 until X ≤ Y. This closed loop ensures that deterministic and actionable control commands are given under any operating condition.

[0084] Technical effects and problem solved. This formula unifies two conflicting engineering objectives—achieving the target concentration and not exceeding the limit—within the same framework. The output can directly drive the setpoint of the adjustable nozzle / diaphragm microvalve, and adapts to changes in flow rate, temperature, and load in real time. This solves the core problem that "a fixed cross-section ratio cannot take into account all operating conditions," and demonstrates creative improvement through a provable control law.

[0085] First, this embodiment functionally wraps key demand-side factors: volumetric flow rate, water temperature, target effluent concentration, current density, effective anode area, and Faraday efficiency are collectively mapped to minimum requirements for outlet velocity and constriction strength, and implemented online using adjustable nozzles or elastic diaphragms. Compared to existing solutions that only use fixed inlet / outlet ratios, this invention no longer relies on static empirical settings, but calculates the minimum constriction boundary to meet mass transfer targets based on real-time operating conditions, and adjusts the effective flow cross-sectional area of ​​the outlet in real time. Therefore, even under conditions of flow fluctuations, temperature changes, or load switching, the preset dissolved ozone concentration can still be stably achieved, avoiding poor dissolution due to insufficient constriction or energy waste caused by blindly increasing power, demonstrating a fundamental leap from empirical selection to calculable constraints.

[0086] Secondly, this embodiment incorporates engineering boundary constraints on key elements on the constraint side: the upper limit of differential pressure, medium density, pump and pipeline operating conditions, cavitation margin, and noise threshold are uniformly converted into the maximum acceptable constriction strength, and a hard constraint closed loop is formed through the sensing and execution links. Unlike the traditional static safety factor relying on manual flow limiters or fixed nozzles, this invention provides an upper limit control that can be adaptively updated according to operating conditions, enabling the device to operate within multi-dimensional red lines such as back pressure, vibration, noise, and material stress, significantly reducing the risks of overpressure, cavitation, and leakage, and achieving a quantifiable trade-off between "safety, energy consumption, and performance." This path of inferring structural opening from the hydraulic red line goes beyond the conventional linear thinking of simply adjusting the pump or replacing the nozzle.

[0087] Finally, this embodiment unifies the minimum boundary on the demand side and the maximum boundary on the constraint side into the same decision rule, outputting a unique target narrowing setting, and automatically triggering a parameter linkage correction (such as appropriately increasing the current density or reducing the flow rate) in infeasible situations until the feasible region is entered. This decision-execution closed loop enables the device to achieve stable effluent concentration, lower unit energy consumption, and shorter convergence time within a wider operating window, while reducing bubble retention and non-uniform electrode aging, and extending the life of membrane electrodes and seals.

Claims

1. An ozone generating module adapted for water flow pipes, characterized in that, include: The cavity is formed by the fitting of the outer shell and the bottom cover, and the two sides of the cavity are respectively provided with an inlet and an outlet that communicate with the cavity; The cavity is provided with a membrane electrode stack held by an electrode isolation bracket, the membrane electrode stack comprising a cathode, a proton exchange membrane and a composite diamond membrane anode in sequence; and is provided with a wiring terminal (2) for power input and conductive fasteners; The cross-sectional area of ​​the outlet (42) is smaller than that of the inlet (41); An adjustable cross-sectional area unit is added to the outlet side. The adjustable cross-sectional area unit includes a valve seat, a movable cone or elastic diaphragm, a scale ring and an actuation mechanism, and is equipped with a flow sensor, a temperature sensor, a differential pressure sensor and a control circuit. The adjustable cross-sectional area unit is used to continuously or in stages adjust the effective flow cross-sectional area of ​​the outlet according to the target ozone concentration and safe energy consumption constraints during operation. Under constant volumetric flow rate Q, the cross-sectional area A of the outlet is... out The cross-sectional area A of the inlet is designed to be smaller than that of the inlet. in Based on the continuity relationship We can obtain: That is, due to A out <Ain, the average outlet flow velocity v out is higher than the average inlet flow velocity v in .

2. The ozone generating module adapted to a water pipe as described in claim 1, characterized in that, The electrode isolation bracket (8) is used to insulate and isolate the cathode (5) from the composite diamond film anode (7) and to position and fix the film electrode stack in the cavity.

3. The ozone generating module adapted to a water pipe type according to claim 2, characterized in that, The cavity has a groove for placing an elastic tube. After the outer shell and the bottom cover are aligned, the elastic tube applies pressure to the membrane electrode stack, so that the cathode (5) is in close contact with the proton exchange membrane (6) and the composite diamond membrane anode (7).

4. The ozone generating module adapted to a water pipe as described in claim 3, characterized in that, An anode conductive sheet (9) is provided, which is electrically connected to the composite diamond film anode (7) and the conductive fastener.

5. An ozone generating module adapted to a water pipe as described in claim 4, characterized in that, An electrode fixing component is provided, which is used to clamp the membrane electrode stack and isolate the reaction zone from the power supply zone.

6. An ozone generating module adapted to a water pipe as described in claim 5, characterized in that, The outer shell and the bottom cover are fastened together to achieve environmental sealing of the cavity.

7. An ozone generating module adapted to a water flow pipe as described in claim 6, characterized in that, The terminal block (2) and the conductive fastener are located at the wall penetration position of the housing. The conductive fastener is used to fix the terminal block (2) and electrically connect it to the membrane electrode stack to realize the positive and negative polarity power supply lead-out.

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