Dental micro-acidic electrolytic water concentration stable liquid supply control system

Abstract

The application discloses a kind of dental micro-acid electrolytic water concentration stable liquid supply control systems, it is related to dental diagnosis and treatment equipment technical field.System contains raw water inlet unit, raw water dynamic pretreatment module, electrolytic unit, constant voltage liquid supply regulating module, dental chair liquid supply branch pipe unit, it is also matched with liquid storage emergency fresh-keeping unit, consumable monitoring module, whole-link detection unit and control host.Electrode group of electrolytic unit is integrated electrode self-cleaning mechanism, and multiple conditions intelligent trigger and grading cleaning mechanism are configured.Control host receives whole-link detection data to realize the linkage regulation and control of each unit, and built-in nine-parameter collaborative closed-loop regulation and control, electrode loss self-compensation and clinical scene clustering self-learning regulation and control mode realize electrolytic water parameter stable control and dental working condition prediction type adaptation.Electrode self-cleaning mechanism realizes electrode intelligent cleaning and loss compensation, and the system adapts to multiple dental chair dynamic liquid supply working condition, guarantees electrolytic water parameter stability and liquid supply continuity.

Description

Technical Field

[0001] This invention relates to the field of dental diagnostic equipment technology, and in particular to a dental micro-acidic electrolyzed water concentration stable supply control system. Background Technology

[0002] In dental clinical treatment, slightly acidic electrolyzed water has become a core auxiliary consumable due to its excellent antibacterial and disinfection effects. The stability of its core physicochemical parameters, such as effective chlorine concentration and pH value, directly determines the disinfection and antibacterial effect, while the continuity and adaptability of the supply system are related to the normal operation of multi-tooth chair time-sharing and continuous treatment in dentistry.

[0003] Existing dental microacidic electrolyzed water preparation and supply systems have two major technological flaws:

[0004] Firstly, the level of intelligence in electrode cleaning and maintenance is low. Traditional electrode cleaning uses a fixed intensity cleaning mode triggered by a single index, which is prone to over-cleaning that damages the electrode coating and causes a secondary decrease in electrolysis efficiency, or untimely cleaning that leads to electrode scaling and severe polarization. In addition, there is a lack of automatic compensation for electrode wear. Electrode maintenance relies entirely on manual inspection and operation, which not only increases the manual operating costs of dental clinics, but also easily leads to interruption of electrolyzed water preparation due to untimely maintenance, making it impossible to meet the liquid supply needs of continuous dental clinical treatment.

[0005] Secondly, the precision of raw water pretreatment and electrolysis parameter control is insufficient. Traditional systems only perform simple filtration and softening of raw water without dynamic compensation based on key parameters such as raw water hardness, temperature, and TDS. Furthermore, electrolysis parameter control often adopts a passive deviation compensation mode, lacking multi-dimensional data detection and multi-parameter collaborative control across the entire process. This leads to fluctuations in the core parameters of slightly acidic electrolyzed water. At the same time, the liquid supply module cannot achieve precise matching between liquid supply pressure and water production rate, making it difficult to adapt to the dynamic clinical conditions of alternating and continuous liquid supply from multiple dental chairs. Consequently, the accuracy and stability of the liquid supply are poor.

[0006] Therefore, there is an urgent need to develop a liquid supply control system that can achieve stable control of the core parameters of slightly acidic electrolyzed water, adapt to the dynamic liquid supply conditions in dentistry, and complete intelligent electrode cleaning and wear compensation, so as to overcome the shortcomings of existing technologies. Summary of the Invention

[0007] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:

[0008] This invention provides a stable supply control system for dental slightly acidic electrolyzed water. The system includes a raw water inlet unit, a raw water dynamic pretreatment module, an electrolysis unit, a constant pressure supply adjustment module, and a dental chair supply branch unit, all connected in sequence via pipelines. It also includes a storage and emergency preservation unit, a consumable monitoring module, a full-link detection unit, and a control host. The storage and emergency preservation unit is connected to the outlet pipeline of the electrolysis unit. The consumable monitoring module is connected to all consumables and detection components in the system. The full-link detection unit is deployed throughout the system and electrically connected to the control host. The electrode assembly of the electrolysis unit integrates an electrode self-cleaning mechanism, which includes a reverse pulse generator, an ultrasonic thickness sensor, and a citric acid electrolyte spray assembly. The system is equipped with a multi-condition triggering mechanism for polarization, cumulative electrolysis time, scale thickness, and efficiency decay rate, as well as a graded cleaning mechanism. The multi-condition triggering mechanism performs single-index threshold calibration and multi-index weighted comprehensive judgment on four indicators: polarization, cumulative electrolysis time, scale thickness, and efficiency decay rate. The system has a dual-level threshold system with warning thresholds and action thresholds. The cleaning requirements and cleaning level of the electrode are determined based on the number of indicators that meet the standards and the extent to which the thresholds are exceeded. The graded cleaning mechanism matches the judgment results and sets three cleaning gradients: light, moderate, and heavy. Each gradient uses differentiated cleaning methods, and the cleaning intensity gradually increases with the cleaning level. The control host is electrically connected to the electrode self-cleaning mechanism, each unit and module of the system. The control host receives real-time detection data from the end-to-end detection unit and controls the execution of the multi-condition triggering mechanism and the graded cleaning mechanism. The control host also has multiple built-in methods to achieve adaptive adjustment of the system's full-process parameters.

[0009] Preferably, in the multi-condition triggering mechanism, the polarization is calculated by the control host using the real-time electrolysis current and voltage parameters of the electrolysis unit; the cumulative electrolysis time is obtained by the control host continuously timing the actual working time of the electrode; the scale thickness is obtained by directly detecting the scale layer thickness on the electrode surface using an ultrasonic thickness sensor; and the efficiency decay rate is obtained by the control host calculating the ratio of the difference between the actual electrolysis efficiency and the rated electrolysis efficiency of the electrode. The comprehensive judgment logic of the multi-condition triggering mechanism is as follows: when any indicator reaches the warning threshold, the control host sends a cleaning pre-warning and tracks the indicator changes in real time; when ≥1 indicator reaches the action threshold, the control host determines the cleaning level based on the number of compliant indicators and the extent to which the indicators exceed the threshold, where scale thickness and efficiency decay rate are the core weighted indicators.

[0010] Preferably, the graded cleaning mechanism follows the principle of physical cleaning whenever possible, avoiding chemical cleaning, and using light cleaning rather than heavy cleaning. During the cleaning process, the control unit collects dynamic data on four judgment indicators in real time: polarization, cumulative electrolysis time, scale thickness, and efficiency decay rate. Cleaning is terminated immediately when all indicators fall below the action threshold. Light cleaning uses a single reverse pulse descaling, where a reverse pulse generator outputs a reverse pulse current to the electrode group to peel off the slightly polarized film and thin scale layer on the electrode surface. Medium cleaning combines reverse pulse descaling with dynamic adjustment of pulse parameters, using a composite physical descaling method. The control unit dynamically adjusts the pulse voltage and frequency according to the real-time state of the electrodes. Heavy cleaning combines reverse pulse descaling with a physicochemical composite descaling method using a micro-citric acid electrolyte spray. First, high-intensity pulse descaling is performed, then spraying is applied to areas with severe scale buildup on the electrodes, and finally, low-intensity pulses are used to peel off the dissolved scale layer.

[0011] Preferably, the raw water dynamic pretreatment module includes a raw water detection sensor, a raw water softening unit, and a microchannel thermostatic control unit. The raw water softening unit is equipped with a softening resin column and a variable frequency backwash pump. The raw water detection sensor is located at the raw water inlet and detects three key parameters of the raw water: hardness, temperature, and TDS. The microchannel thermostatic control unit uses a semiconductor cooling / heating structure to achieve feedforward compensation of the raw water quality. The electrolysis unit uses a titanium-coated ruthenium electrode assembly and is equipped with dual electrolyte peristaltic pumps that serve as backups for each other, ensuring precise electrolyte supply and supply redundancy.

[0012] Preferably, the end-to-end detection unit includes a core detection sensor and a liquid supply detection sensor. The core detection sensor is a three-parameter sensor for detecting available chlorine, pH, and ORP in slightly acidic electrolyzed water. The core detection sensor is located at the outlet of the electrolysis chamber and the liquid supply terminal. The liquid supply detection sensor is a miniature pressure / flow dual-sensor, and it is located on the liquid supply branch pipe of each dental chair. The end-to-end detection unit collects water quality and fluid data throughout the entire system and transmits it to the control host in real time.

[0013] Preferably, the constant pressure liquid supply regulation module includes a main liquid supply pipe variable frequency constant pressure liquid supply pump and a branch pipe flow distribution valve. The branch pipe flow distribution valve supports independent calibration of the liquid supply volume of a single dental chair. The main control unit controls the output pressure of the variable frequency constant pressure liquid supply pump and the water production rate of the electrolysis unit in linkage, so as to achieve matching regulation of liquid supply pressure and water production rate.

[0014] Preferably, the liquid storage emergency preservation unit includes a pure water tank, a slightly acidic water tank, and an emergency backup slightly acidic water tank. The emergency backup slightly acidic water tank integrates a low-temperature constant-temperature preservation unit and a low-intensity ultraviolet antibacterial module. The system is also equipped with an intelligent detection component for electrolysis unit failure and an emergency switching valve for automatic liquid supply switching in the event of an electrolysis unit failure, ensuring the continuity of the system's liquid supply.

[0015] Preferably, the consumable monitoring module includes a liquid level sensor and an equipment status detection component. The liquid level sensor is installed in the electrolyte storage tank, and the equipment status detection component is used to monitor the adsorption saturation of the softening resin column, the electrode wear rate, and the calibration validity period of the sensor. The detection data is transmitted to the control host in real time, and the control host realizes intelligent early warning of consumables and equipment status based on the consumption of consumables and the wear rate of the equipment.

[0016] Preferably, the control host has a built-in nine-parameter collaborative closed-loop control mode. The control parameters of this mode include raw water hardness, raw water temperature, raw water TDS, electrolysis current, electrolysis voltage, effective chlorine concentration, pH value, ORP value, and supply pressure / flow rate. The control host realizes the linkage adaptive adjustment of the nine parameters through real-time data feedback from the full-link detection unit, so that the effective chlorine concentration and pH value of the slightly acidic electrolyzed water remain stable, and the ORP value is maintained above the preset threshold.

[0017] Preferably, the control unit also incorporates an electrode loss self-compensation control mode and a dental clinical scenario clustering self-learning control mode. The electrode loss self-compensation control mode adjusts the current distribution ratio of the electrode group in real time based on electrolysis efficiency decay data, achieving dual compensation for electrode polarization and loss. The system is adaptable to multiple dental chairs operating in a time-sharing / continuous fluid supply mode. The scenario clustering self-learning control mode can automatically cluster different dental treatment conditions and calibrate the optimal parameter set for each condition, used for predictive parameter adaptation, replacing the traditional passive deviation compensation mode.

[0018] Compared with existing technologies, the beneficial effects of this invention are:

[0019] 1. This invention achieves intelligent and refined control of electrode self-cleaning through the integrated design of a multi-condition triggering mechanism and a graded cleaning mechanism. The graded cleaning method effectively removes scale and restores electrolysis efficiency while protecting the nano-coating of the titanium-coated ruthenium electrode assembly. Combined with the electrode loss self-compensation regulation method, it effectively extends the service life of the electrode and reduces the cost of manual intervention.

[0020] 2. This invention achieves precise and stable control of core physicochemical parameters such as effective chlorine concentration and pH value of slightly acidic electrolyzed water by combining dynamic pretreatment of raw water, multi-dimensional detection throughout the entire process, and nine-parameter collaborative closed-loop control. This solves the problem of easy parameter fluctuation in traditional systems. At the same time, the constant pressure liquid supply adjustment module achieves precise matching between liquid supply pressure and water production rate, which can be adapted to the dynamic liquid supply conditions of dental chairs with multiple teeth in a time-sharing and continuous manner, greatly improving the accuracy and stability of liquid supply.

[0021] 3. In this invention, the design of the liquid storage emergency preservation unit and the fault automatic switching component ensures the continuity of the system's liquid supply, while the consumable monitoring module enables early warning of the system's consumables and equipment status, further improving the system's clinical applicability and operational reliability. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall logic of the dental slightly acidic electrolyzed water concentration stable supply control system in this invention.

[0023] Figure 2 This is a schematic diagram of the electrode self-cleaning control logic in this invention.

[0024] Figure 3 This is a logical diagram of the graded cleaning mechanism in this invention. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0026] Example 1

[0027] This invention designs a dental slightly acidic electrolyzed water concentration stable supply control system, the specific system structure configuration is as follows:

[0028] The system includes, in sequence, a raw water inlet unit, a raw water dynamic pretreatment module, an electrolysis unit, a constant pressure liquid supply regulation module, and a dental chair liquid supply branch pipe unit. It is also equipped with a liquid storage emergency preservation unit, a consumable monitoring module, a full-link detection unit, and a control host. Each unit and module is electrically connected to the control host, which completes the linkage and control of the entire process.

[0029] The emergency storage and preservation unit is connected to the outlet pipeline of the electrolysis unit, enabling the storage, preservation, and emergency supply of slightly acidic electrolyzed water. The consumable monitoring module is connected to the softening resin column, electrolyte storage tank, various sensors, and other consumables and detection components in the system to collect data on consumable consumption and equipment wear in real time. The full-link detection unit is deployed at the raw water inlet, electrolysis chamber outlet, liquid supply terminal, and liquid supply branch pipe of each dental chair to realize the real-time acquisition and transmission of water quality and fluid data throughout the system.

[0030] The titanium-coated ruthenium electrode assembly of the electrolysis unit is equipped with an electrode self-cleaning mechanism, which consists of a reverse pulse generator, an ultrasonic thickness sensor, and a citric acid electrolyte spraying assembly. The system is also equipped with a multi-condition triggering mechanism for polarization, cumulative electrolysis time, scale thickness, and efficiency decay rate, as well as a graded cleaning mechanism. These two mechanisms form an integrated cleaning control logic of "precise judgment - gradient execution - closed-loop feedback". The control host completes the collection of indicators, comprehensive judgment, and execution control of cleaning actions.

[0031] The multi-condition triggering mechanism performs single-indicator threshold calibration and multi-indicator weighted comprehensive judgment on four core indicators, setting a dual-level threshold of warning threshold and action threshold. Among them, scale thickness and efficiency decay rate are the core weighted indicators, accounting for more than 60% in total. The control host accurately determines the cleaning needs and cleaning level of the electrode based on the number of indicators that meet the standards and the extent to which the threshold is exceeded. The graded cleaning mechanism sets three cleaning gradients of light, medium and heavy cleaning according to the judgment results. Each gradient adopts different cleaning methods, and the cleaning intensity gradually increases with the level. Throughout the process, the principle of physical rather than chemical and light rather than heavy cleaning is followed, so as to protect the electrode coating while achieving descaling and restoring polarization.

[0032] The raw water dynamic pretreatment module is a crucial pre-treatment step to ensure stable electrolyzed water parameters. This module includes raw water detection sensors, a raw water softening unit, and a microchannel thermostatic control unit. The raw water detection sensors are located at the raw water inlet, monitoring three key parameters—hardness, temperature, and TDS—in real time and transmitting the data to the control unit. The raw water softening unit contains a softening resin column and a variable frequency backwash pump to soften the raw water. The microchannel thermostatic control unit uses a semiconductor cooling / heating structure, adjusted by the control unit based on the raw water detection data, achieving feedforward compensation of the raw water quality and providing a stable raw water foundation for subsequent electrolysis. The electrolysis unit uses titanium-coated ruthenium electrode sets, characterized by high electrolysis efficiency and wear resistance. It is also equipped with dual electrolyte peristaltic pumps as backups, ensuring precise electrolyte supply and providing redundancy to prevent electrolysis interruptions due to single pump failure.

[0033] The end-to-end detection unit is the core data support for system parameter control. It includes a core detection sensor and a liquid supply detection sensor. The core detection sensor is a three-parameter detection sensor for effective chlorine, pH and ORP in slightly acidic electrolyzed water. It is installed at the outlet of the electrolysis chamber and the liquid supply terminal to detect the core physicochemical parameters of the prepared slightly acidic electrolyzed water in real time. The liquid supply detection sensor is a miniature pressure / flow dual detection sensor. It is installed in the liquid supply branch pipe of each dental chair to collect the liquid supply pressure and flow data of each branch pipe in real time. This unit transmits the collected end-to-end water quality and fluid data to the control host in real time, providing data basis for the execution of various control methods.

[0034] The constant pressure liquid supply regulation module includes a main liquid supply pipe variable frequency constant pressure liquid supply pump and a branch pipe flow distribution valve. The branch pipe flow distribution valve supports independent calibration of the liquid supply volume of a single dental chair. The control host controls the output pressure of the variable frequency constant pressure liquid supply pump and the water production rate of the electrolysis unit based on the detection data of the full-link detection unit, so as to achieve precise matching and regulation of liquid supply pressure and water production rate, and meet the liquid supply needs of multiple dental chairs in a time-sharing and continuous manner.

[0035] The emergency preservation unit includes a pure water tank, a slightly acidic water tank, and an emergency backup slightly acidic water tank. The emergency backup slightly acidic water tank integrates a low-temperature constant-temperature preservation unit and a low-intensity ultraviolet antibacterial module, which can achieve long-term preservation of slightly acidic electrolyzed water and prevent the effective chlorine concentration from decreasing during storage. The system is also equipped with an intelligent fault detection component for the electrolysis unit and an emergency switching valve. When the electrolysis unit malfunctions, the intelligent fault detection component can quickly identify the fault and transmit it to the control host. The control host immediately controls the emergency switching valve to open, and the emergency backup slightly acidic water tank realizes automatic liquid supply switching to ensure the continuity of liquid supply in dental clinics.

[0036] The consumables monitoring module includes a liquid level sensor and an equipment status detection component. The liquid level sensor is installed in the electrolyte storage tank to monitor the electrolyte level in real time. The equipment status detection component is used to monitor the adsorption saturation of the softening resin column, the electrode wear rate, and the calibration validity period of various sensors. All detection data are transmitted to the control host in real time. The control host issues intelligent warnings in advance based on the consumption rate of consumables and the wear rate of equipment, reminding staff to replace consumables and calibrate equipment in a timely manner.

[0037] The control unit is the core of the entire system, incorporating a nine-parameter collaborative closed-loop control mode, an electrode loss self-compensation control mode, and a dental clinical scenario clustering self-learning control mode to achieve adaptive control throughout the entire system process. The nine-parameter collaborative closed-loop control mode uses raw water hardness, raw water temperature, raw water TDS, electrolysis current, electrolysis voltage, effective chlorine concentration, pH value, ORP value, and supply pressure / flow rate as control dimensions. Through real-time data feedback from the end-to-end detection units, it completes the linkage adaptive adjustment of the nine parameters, ensuring that the effective chlorine concentration and pH value of the slightly acidic electrolyzed water remain stable, and the ORP value is maintained above the preset threshold.

[0038] The electrode loss self-compensation control method adjusts the current distribution ratio of the electrode group in real time based on the electrolysis efficiency decay data, achieving dual compensation for electrode polarization and loss, and ensuring the stability of the overall electrolysis efficiency of the electrode group. The dental clinical scenario clustering self-learning control mode can automatically cluster different operating conditions in dental treatment, such as single-chair fluid supply, simultaneous fluid supply to multiple chairs, peak-hour fluid supply, and off-peak-hour fluid supply, and calibrate the optimal parameter set for each operating condition, achieving predictive parameter adaptation, replacing the traditional passive deviation compensation mode, and improving the system's control efficiency and adaptability.

[0039] Example 2

[0040] The nine-parameter collaborative closed-loop control mode built into the control host of this invention is the core control method for achieving stable core parameters of electrolyzed water and precise adaptation of liquid supply conditions. This mode uses nine key parameters as the core control dimensions: raw water hardness, raw water temperature, raw water TDS, electrolysis current, electrolysis voltage, effective chlorine concentration, pH value, ORP value, and liquid supply pressure / flow rate. Relying on real-time data acquisition and feedback from the full-link detection unit, it constructs a seamless closed-loop control logic of "data acquisition - parameter analysis - module control - result feedback - strategy calibration" to achieve linkage and adaptive adjustment of the nine parameters. Ultimately, it achieves precise and stable control of the effective chlorine concentration and pH value of slightly acidic electrolyzed water, while maintaining the ORP value above the preset threshold and ensuring precise matching between the liquid supply pressure / flow rate and the electrolysis water production rate, adapting to the dynamic liquid supply conditions of dental multi-dental chairs in a time-sharing / continuous manner.

[0041] The following analysis will focus on five aspects: parameter classification and core functions, overall logic of closed-loop control, multi-dimensional linkage control rules, execution path, and adaptive adjustment characteristics.

[0042] I. Classification of the nine parameters and the core function of each dimension

[0043] The nine control parameters are not isolated, but are divided into four categories according to raw water basic parameters, electrolysis reaction parameters, electrolyzed water quality parameters, and supply fluid parameters. Each category of parameter corresponds to the core process links in the front, middle, and rear stages of the system. The preceding parameters serve as the basis for the control of the following parameters, and the following parameters serve as the basis for the control of the preceding parameters, forming a layered parameter system. The specific classification and functions are as follows:

[0044] 1. Basic parameters of raw water (raw water hardness, raw water temperature, raw water TDS)

[0045] As fundamental parameters preceding the electrolysis reaction, these parameters directly affect the electrode reaction rate, electrolysis efficiency, and scaling tendency of the electrolysis unit, and are the core dimension for achieving "feedforward compensation control." Excessive raw water hardness easily leads to electrode scaling, excessively low temperature reduces the electrolysis reaction rate, and abnormal TDS values ​​alter the electrolyte conductivity. All three directly cause fluctuations in the quality parameters of the electrolyzed water. Therefore, these parameters are the first line of defense in control and need to be compensated for in advance through the raw water dynamic pretreatment module.

[0046] 2. Electrolysis reaction parameters (electrolysis current, electrolysis voltage)

[0047] The core control parameters for water electrolysis directly determine the electrolysis reaction intensity, water production rate, and core physicochemical properties of the electrolyzed water. They serve as a crucial bridge connecting the basic parameters of the raw water with the quality parameters of the electrolyzed water. By adjusting the ratio of electrolysis current and voltage, the control unit can directly alter the electrolysis reaction process, thereby precisely controlling quality parameters such as effective chlorine concentration and pH value. This is the core control method for stabilizing quality parameters.

[0048] 3. Quality parameters of electrolyzed water (effective chlorine concentration, pH value, ORP value)

[0049] They are the core control target parameters of the entire regulation method, directly determining the dental disinfection and antibacterial effect of slightly acidic electrolyzed water, and also the ultimate judgment criterion for all regulation actions. Among them, the effective chlorine concentration and pH value are precise and stable indicators, which need to be controlled within the fixed range required by dental clinical practice; the ORP value is a threshold guarantee indicator, which needs to be maintained above the preset threshold to ensure the oxidation and antibacterial ability of electrolyzed water.

[0050] 4. Liquid supply fluid parameters (liquid supply pressure / flow rate)

[0051] They are working condition adaptation parameters, which not only affect the liquid supply experience in dental clinics, but also inversely affect the stability of the quality parameters of electrolyzed water. Excessive / high or low liquid supply pressure and unmatched flow rate and water production rate will cause electrolyzed water to stay in the pipeline, flow too fast or pressure to change suddenly, resulting in attenuation of effective chlorine concentration and pH value fluctuations. Therefore, these parameters need to be联动regulated with electrolysis reaction parameters to achieve precise matching of "water production - liquid supply".

[0052] II. Overall logic of nine - parameter collaborative closed - loop regulation

[0053] The core of this method is a closed - loop cycle of "full - link real - time acquisition - intelligent analysis by the control host - multi - module collaborative regulation - result feedback from the detection unit - dynamic calibration of regulation strategies". Without manual intervention, all actions are automatically completed by the control host according to the preset algorithm. The closed - loop cycle runs continuously to ensure that the parameters are always within the stable range under the dynamic liquid supply conditions in dental clinics. The specific closed - loop process is as follows:

[0054] Data acquisition: All kinds of sensors in the full - link detection unit continuously and real - time collect the nine parameters. The raw water parameters are collected by the raw water detection sensors, the electrolysis reaction parameters are collected by the detection components supporting the electrolysis unit, the quality parameters are collected by the core detection sensors (three parameters of effective chlorine - pH - ORP), and the liquid supply parameters are collected by the micro pressure / flow double detection sensors on the branch pipes. All data are transmitted to the control host in real - time.

[0055] Parameter analysis: The control host compares the real - time parameters collected with the preset parameter standard range / threshold in dental clinics, analyzes the parameter deviation situation, deviation reasons and the coupling effects between parameters (such as whether the too high raw water hardness has led to a decrease in electrolysis efficiency, whether the increase in liquid supply flow rate requires an increase in water production rate, etc.).

[0056] Module linkage control: Based on the analysis results, the control host sends control commands to the corresponding system units / modules, such as sending raw water parameter compensation commands to the raw water dynamic pretreatment module, sending current / voltage adjustment commands to the electrolysis unit, and sending pressure / flow matching commands to the constant pressure liquid supply regulation module.

[0057] Results Feedback: After each module performs the control action, the full-link detection unit immediately collects the parameter data after the control and transmits it back to the control host in real time to form control result feedback.

[0058] Strategy calibration: The control host compares the feedback parameter data with the preset standard again. If the parameter has met the standard, the current control strategy is maintained; if the parameter still has a deviation, the control strategy is dynamically fine-tuned according to the deviation magnitude and parameter coupling relationship, and the control command is sent again until the parameter meets the standard.

[0059] The closed-loop process described above has an extremely short cycle time, enabling millisecond-level response to parameter fluctuations and avoiding the problem of large parameter fluctuations in the traditional passive deviation compensation mode.

[0060] III. Dimensional Linkage Control Rules for Nine Parameters

[0061] The core principle of the nine-parameter control is "synergistic linkage and clear distinction between primary and secondary parameters." This means that the quality parameters (available chlorine, pH, ORP) are the core control targets, while the other six parameters serve as control means to achieve these targets. Furthermore, fixed linkage control rules are formed between each parameter according to the process steps, avoiding the "one-sided approach" that can result from controlling only one parameter. The core linkage rules are as follows:

[0062] 1. Raw water basic parameters - electrolysis reaction parameters (feedforward compensation control)

[0063] If any parameter of the raw water—hardness, temperature, or TDS—deviates from the preset standard, the control unit first performs pre-compensation through the raw water dynamic pretreatment module (for example, if the hardness is too high, the softening effect of the softening resin column is enhanced; if the temperature is too low, the microchannel constant temperature adjustment unit is used for heating; if the TDS is abnormal, the pretreatment filtration precision is adjusted). If the raw water parameters still have slight deviations after pretreatment, the control unit will fine-tune the electrolysis current / voltage in advance to offset the influence of the raw water parameter deviations on the electrolysis reaction, achieving "feedforward compensation" and avoiding fluctuations in quality parameters from the source.

[0064] 2. Electrolysis reaction parameters - quality parameters (precise matching and control)

[0065] Fluctuations in available chlorine concentration and pH value are mainly caused by changes in the intensity of the electrolysis reaction. The control unit linearly adjusts the electrolysis current / voltage ratio based on the deviation of the quality parameters. If the available chlorine concentration is below the preset lower limit, the electrolysis current (or voltage) is moderately increased to enhance the electrolysis reaction intensity, provided that the raw water parameters are stable. If the pH value is too high, the electrolysis voltage (or current) is finely adjusted to change the ion generation ratio of the electrolysis reaction until the quality parameters return to the standard range. At the same time, the control unit ensures that the adjusted electrolysis current / voltage is within the rated operating range of the electrode assembly to avoid excessive adjustment that could lead to electrode polarization and increased wear.

[0066] 3. Quality Parameter - ORP Value (Threshold-Linked Guarantee)

[0067] ORP (Ozone Retention Rate) has a natural coupling relationship with available chlorine concentration and pH value. Within the parameter range of dental slightly acidic electrolyzed water, when the available chlorine concentration and pH value are stable at the preset standards, the ORP value can naturally be maintained above the preset threshold. If the ORP value falls below the threshold due to special operating conditions (such as sudden changes in raw water quality), even if the available chlorine and pH values ​​meet the standards, the control unit will make slight adjustments to the electrolysis reaction parameters. While ensuring that the available chlorine and pH values ​​remain unchanged, the ORP value will be increased to above the threshold to ensure the disinfection and antibacterial ability of the electrolyzed water.

[0068] 4. Liquid supply fluid parameters - electrolysis reaction parameters (bidirectional matching control)

[0069] The supply pressure / flow rate and the electrolysis current / voltage (water production rate) form a two-way linkage: (1) When the dental clinical supply conditions change (such as multiple dental chairs supplying water at the same time, and the flow demand increases), the supply sensor detects an increase in flow rate / decrease in pressure. The control host immediately increases the electrolysis current / voltage to increase the water production rate. At the same time, it adjusts the output pressure of the variable frequency constant pressure supply pump to match the supply flow rate and avoid sudden changes in pipeline pressure. (2) If the electrolysis water production rate changes due to the adjustment of raw water parameters, the control host synchronously adjusts the supply pressure / flow rate to ensure that "water production rate = supply rate" and avoids the electrolyzed water from stagnating in the pipeline, which leads to a decrease in effective chlorine concentration.

[0070] 5. Full Parameter - Overall Adaptation (Comprehensive Weighted Adjustment)

[0071] When multiple parameters deviate simultaneously (e.g., excessively high raw water hardness + increased supply flow rate), the control unit performs a weighted comprehensive analysis of the deviation magnitude and impact weight of each parameter. It prioritizes ensuring the stability of quality parameters before sequentially compensating for raw water parameters and matching supply parameters, avoiding over-adjustment of a single parameter that could lead to deviations in other parameters. Among these, effective chlorine concentration and pH value have the highest weighting, while raw water hardness related to scaling and electrolysis current related to electrode polarization have the second highest weighting.

[0072] IV. Specific Implementation Path of Nine-Parameter Collaborative Closed-Loop Regulation

[0073] All commands for this control method are issued by the control host and executed through three main execution modules: the raw water dynamic pretreatment module, the electrolysis unit, and the constant pressure liquid supply regulation module. Each module corresponds to different control parameters, and the modules are linked together by the control host. The specific execution path is as follows:

[0074] 1. Raw water dynamic pretreatment module (responsible for the regulation of basic raw water parameters)

[0075] The system receives commands from the control host, regulates the hardness of the raw water through a softening resin column and a variable frequency backwash pump, regulates the temperature of the raw water through a microchannel thermostatic control unit with a semiconductor cooling / heating structure, and regulates the TDS of the raw water through precision adjustment of the pretreatment filtration components. This achieves feedforward compensation of the three parameters of the raw water, providing a stable raw water material for the electrolysis unit.

[0076] 2. Electrolysis unit (responsible for controlling the electrolysis reaction parameters)

[0077] It receives commands from the control host and precisely adjusts the electrolysis current and voltage ratio of the electrode group. At the same time, relying on the dual electrolyte peristaltic pumps that serve as backups, it finely adjusts the electrolyte supply according to the intensity of the electrolysis reaction to help maintain the stability of the electrolysis reaction, and ultimately achieves precise control of quality parameters.

[0078] 3. Constant pressure fluid supply regulation module (responsible for regulating the fluid supply parameters)

[0079] It receives commands from the control host, adjusts the supply pressure through the variable frequency constant pressure supply pump in the main supply pipe, and adjusts the supply flow rate of single / multi-channel dental chairs through the branch pipe flow distribution valve. It also supports independent calibration of the supply volume of a single dental chair, thus achieving the matching of supply parameters with the electrolysis water production rate and meeting the personalized supply needs of different dental chairs in dental clinics.

[0080] The control actions of the three major modules are uniformly coordinated by the control host, without any order, and can be executed synchronously to ensure control efficiency and achieve coordinated unification of nine parameters.

[0081] Example 3

[0082] In this invention, the multi-condition triggering mechanism of the electrode self-cleaning mechanism is the pre-judgment logic of the graded cleaning mechanism. The core is to accurately identify the electrode cleaning needs and the degree of urgency by monitoring and comprehensively judging the full-dimensional data of electrode polarization, usage time, scaling status and electrolysis efficiency, so as to avoid false triggering (over-cleaning) or missed triggering (untimely cleaning) caused by single-condition judgment.

[0083] The graded cleaning mechanism is based on the judgment result of the trigger mechanism and matches gradient and differentiated cleaning methods. While achieving efficient descaling and polarization state restoration, it effectively protects the titanium-coated ruthenium electrode assembly and avoids damage to the electrode coating and secondary reduction in electrolysis efficiency caused by a single cleaning intensity. The two form an integrated cleaning control logic of "precise judgment - gradient execution - closed-loop feedback", which is suitable for the dynamic working conditions of continuous liquid supply in dental clinics and can achieve intelligent and refined management of electrode self-cleaning without manual intervention.

[0084] The following provides a detailed explanation of the specific content, judgment logic, and execution method of the two mechanisms:

[0085] I. Multi-condition triggering mechanism

[0086] The mechanism uses four core indicators as judgment dimensions: polarization, cumulative electrolysis time, scale thickness, and efficiency decay rate. The data of each indicator is collected / calculated in real time by the system's end-to-end detection unit and control host. The cleaning command is triggered by the logic of "single indicator threshold calibration + multi-indicator comprehensive judgment". It is divided into two levels: warning threshold and action threshold. The warning threshold only sends a cleaning pre-prompt to the control host (without actual cleaning action), while the action threshold determines the cleaning level and triggers the corresponding graded cleaning process based on the number of qualified indicators and the extent to which the indicators exceed the threshold.

[0087] 1. Detection / Calculation Methods of the Four Major Judgment Indicators

[0088] Each indicator directly reflects the electrode's operating status. Data acquisition and calculation are fully automated, requiring no human intervention, thus ensuring the objectivity and real-time nature of the judgment.

[0089] Polarization: Calculated by the control host through the real-time electrolysis current and voltage parameters of the electrolysis unit, it reflects the degree of polarization film adhesion on the electrode surface caused by the electrolysis reaction. The higher the polarization, the thicker the polarization film on the electrode surface, and the lower the electrolysis efficiency.

[0090] Cumulative electrolysis time: The actual working time of the electrode is continuously timed by the control host, excluding equipment downtime and standby periods. It reflects the cumulative working load of the electrode and is the basic time dimension for judging electrode scaling and polarization.

[0091] Scale thickness: The thickness of the scale layer on the electrode surface is directly detected by an ultrasonic thickness sensor integrated with the electrode assembly, reflecting the actual state of physical scaling on the electrode and serving as the most intuitive indicator for determining cleaning requirements.

[0092] Efficiency decay rate: The ratio of the difference between the actual electrolysis efficiency and the rated electrolysis efficiency of the electrode is calculated by the control host. The actual electrolysis efficiency is inferred from the effective chlorine concentration and water production of the electrolyzed water. The efficiency decay rate directly reflects the degree of impact of scaling and polarization on the core function of the electrode.

[0093] 2. Triggering logic of multi-condition triggering mechanism

[0094] The mechanism does not adopt the simple logic of "triggering when a single indicator meets the standard". Instead, it makes a weighted comprehensive judgment on four indicators. The core reason is that a single indicator cannot fully reflect the actual state of the electrode (e.g., if the cumulative electrolysis time reaches the standard but the raw water quality is excellent, the scale thickness on the electrode is very low, and cleaning is not required).

[0095] The specific judgment rules are as follows:

[0096] Each indicator has a warning threshold and an action threshold calibrated by the system based on the dental clinical working conditions and electrode material characteristics. The action threshold is the core judgment standard for cleaning execution.

[0097] When any indicator reaches the warning threshold, the control host records the data and sends a cleaning reminder, which is then incorporated into the system's consumables / equipment status monitoring to track indicator changes in real time.

[0098] When ≥1 indicator reaches the action threshold, the control host determines the cleanliness level (light / moderate / heavy) based on the number of indicators that meet the standard and the extent to which the indicators exceed the threshold. Among them, the scale thickness and efficiency decay rate are the core weighted indicators, accounting for more than 60% of the judgment weight (because the two directly reflect the degree of damage to electrode function).

[0099] During the cleaning process, the control host collects dynamic data of four indicators in real time. When all indicators fall below the action threshold, the cleaning action is immediately terminated, forming a closed-loop control of trigger-execution-stop.

[0100] II. Tiered Cleaning Mechanism

[0101] Based on the judgment results of the multi-condition triggering mechanism, the cleaning action is divided into three levels: light, medium and heavy. The cleaning method is gradually upgraded from pure physical descaling to "physical descaling + trace chemical descaling". The cleaning intensity and cleaning time increase in a gradient with the increase of the cleaning level, and the execution method is gradually upgraded. At the same time, all cleaning methods are adapted to the nano-coating characteristics of titanium-coated ruthenium electrodes to avoid damage such as coating scratches and corrosion. The core principle is to "use physical methods if possible, and use light methods if possible, and use heavy methods if possible", so as to extend the service life of the electrode while achieving descaling and restoring polarization.

[0102] The grading criteria and specific implementation methods for the three cleaning levels are as follows. The cleaning parameters and execution procedures for each level are automatically controlled by the main control unit without manual intervention:

[0103] 1. Light cleaning

[0104] Grading criteria: The multi-condition triggering mechanism determines that one indicator reaches the action threshold, and the core indicators (scale thickness, efficiency decay rate) do not exceed the threshold. The electrode has only slight polarization or thin scale, and the electrolysis efficiency decay is small (more than 90% of the rated efficiency).

[0105] Execution method: Reverse pulse descaling is used as the sole cleaning method. The reverse pulse generator of the mechanism outputs a reverse pulse current to the electrode group. Through the electrochemical reverse reaction on the electrode surface, the slightly polarized film and thin scale layer are peeled off. The cleaning uses short-duration, low-frequency pulse parameters. The pulse parameters are matched to the mild cleaning threshold by the control host to avoid excessive pulses causing electrode coating fatigue.

[0106] 2. Moderate cleaning

[0107] Grading criteria: The multi-condition triggering mechanism determines that two or more indicators reach the action threshold, the core indicators (scale thickness and efficiency decay rate) slightly exceed the threshold, there is moderate scale or a relatively thick polarization film on the electrode surface, and the electrolysis efficiency decays to 70%-90% of the rated efficiency.

[0108] Execution method: A composite physical descaling method of "reverse pulse descaling + dynamic adjustment of pulse parameters" is adopted. Based on the basic reverse pulse, the control host dynamically adjusts the voltage and frequency parameters of the reverse pulse according to the real-time polarization of the electrode and the thickness of the scale, so as to improve the targeting of pulse descaling. The cleaning time is appropriately extended compared with light cleaning, and the electrolysis efficiency is monitored in real time during the cleaning process. When the control host detects that the electrolysis efficiency has recovered to more than 85% of the rated efficiency, the cleaning can be terminated in advance.

[0109] 3. Intensive cleaning

[0110] Grading criteria: The multi-condition triggering mechanism determines that all four indicators have reached the action threshold, or the core indicators (scale thickness, efficiency decay rate) have significantly exceeded the threshold, there is heavy hard scale or thick polarization film on the electrode surface, and the electrolysis efficiency has decayed to below 70% of the rated efficiency, which has affected the normal preparation of slightly acidic electrolyzed water.

[0111] Execution Method: A combined physical and chemical descaling approach, combining "reverse pulse descaling + micro-volume citric acid electrolyte spraying," is employed. This is the highest-level cleaning method, with the execution process involving physical descaling followed by chemical descaling, and precise volume control throughout. First, high-intensity reverse pulse descaling is performed to remove most of the scale and polarization film from the electrode surface. Then, the citric acid electrolyte spraying component of the electrode self-cleaning mechanism sprays a micro-volume solution onto severely scaled areas of the electrode. The weak acidity of citric acid dissolves the hard scale layer on the electrode surface. The spray flow rate and duration are calibrated by the control unit based on the scale thickness to avoid excessive citric acid leading to electrode coating corrosion or electrolyte residue affecting the quality of the electrolyzed water. After the chemical spraying is completed, a second low-intensity reverse pulse descaling is performed to remove the dissolved scale layer, completing the entire cleaning process.

[0112] III. Synergistic Linkage Between Two Major Mechanisms and Electrode Self-Compensation

[0113] The multi-condition triggering mechanism and the graded cleaning mechanism do not operate independently, but rather work in deep collaboration with the electrode self-cleaning mechanism's electrode loss self-compensation algorithm to form a complete closed loop of "cleaning-detection-compensation":

[0114] After the graded cleaning action is completed, the control host immediately re-collects indicators such as electrode polarization, scale thickness, and efficiency decay rate to determine the cleaning effect.

[0115] If the electrode electrolysis efficiency has recovered to the rated standard after cleaning, the cleaning process is completed. If the electrolysis efficiency has not fully recovered due to local electrode damage after cleaning, the control host will adjust the current distribution ratio of the electrode group in real time through the electrode damage self-compensation algorithm to compensate for the current in the damaged area and ensure the stability of the overall electrolysis efficiency of the electrode group.

[0116] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A dental slightly acidic electrolyzed water concentration stable supply control system, characterized in that: The system includes a raw water inlet unit, a raw water dynamic pretreatment module, an electrolysis unit, a constant pressure liquid supply regulation module, and a dental chair liquid supply branch pipe unit connected in sequence by pipelines. The system also includes a liquid storage emergency preservation unit, a consumable monitoring module, a full-link detection unit, and a control host. The water outlet pipeline of the liquid storage emergency preservation unit is connected to the electrolysis unit. The consumable monitoring module is connected to each consumable and detection component of the system. The full-link detection unit is deployed throughout the system and electrically connected to the control host. The electrode group of the electrolysis unit is integrated with an electrode self-cleaning mechanism, which includes a reverse pulse generator, an ultrasonic thickness sensor and a citric acid electrolyte spraying assembly. The system is equipped with a multi-condition triggering mechanism for polarization, cumulative electrolysis time, scale thickness and efficiency decay rate and a graded cleaning mechanism. The multi-condition triggering mechanism performs single-index threshold calibration and multi-index weighted comprehensive judgment on four indicators: polarization, cumulative electrolysis time, scale thickness, and efficiency decay rate. The system is set with two-level thresholds: warning threshold and action threshold. The cleaning requirements and cleaning level of the electrode are determined based on the number of qualified indicators and the extent of exceeding the threshold. The graded cleaning mechanism matches the judgment results and sets three cleaning gradients: light, medium, and heavy. Each gradient adopts differentiated cleaning methods, and the cleaning intensity gradually increases with the increase of the cleaning level. The control host is electrically connected to the electrode self-cleaning mechanism, each unit and module of the system. The control host receives real-time detection data from the full-link detection unit and controls the execution of the multi-condition triggering mechanism and the graded cleaning mechanism.

2. A dental slightly acidic electrolyzed water concentration stable supply control system according to claim 1, characterized in that: In the multi-condition triggering mechanism, the polarization is calculated by the control host through the real-time electrolysis current and voltage parameters of the electrolysis unit, the cumulative electrolysis time is obtained by the control host continuously timing the actual working time of the electrode, the scale thickness is obtained by the ultrasonic thickness sensor directly detecting the scale layer thickness on the electrode surface, and the efficiency decay rate is obtained by the control host calculating the ratio of the difference between the actual electrolysis efficiency of the electrode and the rated electrolysis efficiency. The comprehensive judgment logic of the multi-condition triggering mechanism is that when any indicator reaches the warning threshold, the control host sends a cleaning pre-prompt and tracks the changes of the indicator in real time. When ≥1 indicator reaches the action threshold, the control host determines the cleaning level by combining the number of qualified indicators and the extent to which the indicators exceed the threshold.

3. A dental slightly acidic electrolyzed water concentration stable supply control system according to claim 1, characterized in that: The graded cleaning mechanism follows the principle of physical cleaning rather than chemical cleaning, and light cleaning rather than heavy cleaning. During the cleaning process, the control host collects dynamic data of four judgment indicators in real time: polarization, cumulative electrolysis time, scale thickness, and efficiency decay rate. When all indicators fall below the action threshold, the cleaning is terminated immediately. Light cleaning is performed by a single reverse pulse descaling, in which a reverse pulse current is output from a reverse pulse generator to the electrode assembly to strip away the slightly polarized film and thin scale layer on the electrode surface. Medium cleaning is a composite physical descaling method that combines reverse pulse descaling with dynamic adjustment of pulse parameters. The control unit dynamically adjusts the pulse voltage and frequency according to the real-time status of the electrodes. Heavy cleaning is a physicochemical composite descaling process that combines reverse pulse descaling with micro-citric acid electrolyte spraying. First, high-intensity pulse descaling is performed, then the areas with severe electrode scaling are sprayed, and finally, low-intensity pulse stripping is performed to dissolve the scale layer.

4. A dental slightly acidic electrolyzed water concentration stable supply control system according to claim 1, characterized in that: The raw water dynamic pretreatment module includes a raw water detection sensor, a raw water softening unit, and a microchannel constant temperature control unit; The raw water softening unit is equipped with a softening resin column and a variable frequency backwash pump. The raw water detection sensor is installed at the raw water inlet end. The raw water detection sensor detects three key parameters of the raw water: hardness, temperature, and TDS. The microchannel constant temperature regulation unit is a semiconductor cooling / heating structure. The electrolysis unit uses titanium-coated ruthenium electrode assembly and is equipped with dual electrolyte peristaltic pumps that serve as backups for each other.

5. A dental slightly acidic electrolyzed water concentration stable supply control system according to claim 1, characterized in that: The end-to-end detection unit includes core detection sensors and liquid supply detection sensors; The core detection sensors are located at the outlet of the electrolysis chamber and the liquid supply terminal. The core detection sensors are three-parameter sensors for detecting available chlorine, pH and ORP in slightly acidic electrolyzed water. The liquid supply detection sensor is a miniature pressure / flow dual detection sensor, and the liquid supply detection sensor is installed on the liquid supply branch pipe of each dental chair. The end-to-end detection unit collects water quality and fluid data from the entire system and transmits it to the control host in real time.

6. A dental slightly acidic electrolyzed water concentration stable supply control system according to claim 1, characterized in that: The constant pressure liquid supply regulation module includes a main liquid supply pipe variable frequency constant pressure liquid supply pump and a branch pipe flow distribution valve. The branch pipe flow distribution valve supports independent calibration of the liquid supply volume of a single dental chair. The main control unit controls the output pressure of the variable frequency constant pressure liquid supply pump and the water production rate of the electrolysis unit in linkage.

7. A dental slightly acidic electrolyzed water concentration stable supply control system according to claim 1, characterized in that: The liquid storage emergency preservation unit includes a pure water tank, a slightly acidic water tank, and an emergency backup slightly acidic water tank. The emergency backup slightly acidic water tank integrates a low-temperature constant temperature preservation unit and a low-intensity ultraviolet antibacterial module. The system is also equipped with an intelligent detection component for electrolysis unit failures and an emergency switching valve, which are used for automatic liquid supply switching in the event of an electrolysis unit failure, ensuring the continuity of the system's liquid supply.

8. A dental slightly acidic electrolyzed water concentration stable supply control system according to claim 1, characterized in that: The consumables monitoring module includes a liquid level sensor and an equipment status detection component. The liquid level sensor is installed in the electrolyte storage tank, and the equipment status detection component is used to monitor the adsorption saturation of the softening resin column, the electrode wear rate, and the calibration validity period of the sensor. The detection data is transmitted to the control host in real time, and the control host realizes intelligent early warning of consumables and equipment status based on the consumption of consumables and the wear rate of the equipment.

9. A dental slightly acidic electrolyzed water concentration stable supply control system according to claim 1, characterized in that: The control host has a built-in nine-parameter collaborative closed-loop control mode. The control parameters of this mode include raw water hardness, raw water temperature, raw water TDS, electrolysis current, electrolysis voltage, effective chlorine concentration, pH value, ORP value, and supply pressure / flow rate. The control host achieves linkage and adaptive adjustment of nine parameters through real-time data feedback from the full-link detection unit, so as to keep the effective chlorine concentration and pH value of the slightly acidic electrolyzed water stable and maintain the ORP value above the preset threshold.

10. A dental slightly acidic electrolyzed water concentration stable supply control system according to claim 1, characterized in that: The control unit also has a built-in electrode loss self-compensation control mode and a dental clinical scenario clustering self-learning control mode. The electrode loss self-compensation control mode adjusts the current distribution ratio of the electrode group in real time according to the electrolysis efficiency decay data, so as to achieve dual compensation of electrode polarization and loss. The system is adapted to the working conditions of multiple dental chairs for time-sharing / continuous fluid supply. The scene clustering self-learning control mode can automatically cluster different working conditions of dental treatment and calibrate the optimal parameter set under each working condition for predictive parameter adaptation.

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