A micro-nano bubble continuous generation control method, system and device

Abstract

The present application relates to the technical field of nano bubble generation, in particular to a micro-nano bubble continuous generation control method, system and device. The device includes a water pump, a water inlet valve, an air valve, a water outlet valve, a first pressure gas dissolving tank, a second pressure gas dissolving tank, and an nth pressure gas dissolving tank. The water pump is connected to the first pressure gas dissolving tank, the second pressure gas dissolving tank, and the nth pressure gas dissolving tank through multiple water inlet valves. Each pressure gas dissolving tank is connected to the air valve at the top and to the water outlet valve at the bottom. The method includes obtaining the number and remaining volume of the gas dissolving tanks, starting the gas dissolving tank switching program and the water production program, and forming micro-nano bubble water. The generated micro-nano bubble water is collected and sampled for detection. The present application realizes continuous and stable production, improves production efficiency, ensures the continuous supply of bubble water, and does not require additional air pump equipment, which is conducive to energy saving and emission reduction.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of nanobubble generation, in particular to a micro-nanobubble continuous generation control method, system and device. BACKGROUND

[0002] Nanobubbles are gaseous microbubbles with a diameter usually below 100 nanometers, which have unique physical and chemical properties. They can form at the interface between liquid and solid, or be suspended in liquid. The formation mechanism of nanobubbles is complex, involving multiple factors such as surface tension, adsorption and desorption of gas molecules, and liquid-gas-solid interaction at the interface. There are various methods for generating nanobubbles. The pressurized dissolution release method is the most common way to generate micro-nanobubbles. It uses a pump to mix liquid and gas under a certain pressure, so that the gas dissolves in the liquid to form a supersaturated solution (compared with the saturation solubility under atmospheric pressure). When the supersaturated solution is released to atmospheric pressure, micro-nanobubbles can be generated.

[0003] Prior art one, Chinese patent, application number: 201310737193.4 discloses a method for generating ozone microbubbles, which includes controlling the volume ratio of gas and liquid input into a gas-liquid mixing pump to be 1:60-1:40, inputting ozone gas and raw water to be treated into the gas-liquid mixing pump to mix thoroughly to become gas-saturated water; delivering the gas-saturated water from the gas-liquid mixing pump to a pressure gas-saturated tank; maintaining the pressure in the pressure gas-saturated tank at 0.25-0.4 MPa, and outputting the gas-saturated water from the pressure gas-saturated tank. Although the ozone utilization rate and wastewater treatment effect are improved, the equipment cost and operation difficulty are reduced; however, the cost of the gas-liquid mixing pump is very high, and its application is limited.

[0004] Prior art two, Chinese patent, application number 201511035038.3 discloses a pressure gas-saturated device for air flotation, which includes a gas-saturated tank, a micro-nanobubble release device, and a reaction tank. The gas-saturated tank is designed as a jet flow without filler, the hydraulic residence time in the tank is 5-10 seconds, and the normal working pressure in the tank is 0.25 MPa. The gas saturation rate of the gas-saturated tank is above 80%. An air inlet is arranged on the gas-saturated tank, a water inlet is arranged on the gas-saturated tank, and a water outlet is arranged on the gas-saturated tank. The water outlet and the micro-nanobubble release device are arranged at the bottom of the reaction tank. Although the pressure gas-saturated device for air flotation is energy-efficient and easy to manage, the volume of the gas-saturated tank is reduced and the bubble generation effect is improved by improving the gas-saturated tank and the release device in the existing gas-saturated device, and the impurity removal rate is improved; however, an air compressor is required, which produces a lot of noise, and its application is limited.

[0005] The prior art three, Chinese patent, application number 202210778793.4 discloses a control method and processor for a micro-nano bubble liquid generating system, which includes a liquid inlet flow channel, a liquid outlet flow channel, a gas inlet flow channel, a gas-liquid mixing cavity and a micro-nano bubble liquid generating device. The control method includes: determining that the liquid outlet flow channel is in a conduction state; determining that there is liquid flow in the liquid inlet flow channel for the first time; controlling the liquid inlet flow channel to be closed; turning on the gas inlet flow channel to supply gas to the gas-liquid mixing cavity; determining that the gas supply time reaches a preset gas supply time; stopping the gas supply to the gas-liquid mixing cavity, and turning on the liquid inlet flow channel to supply liquid to the gas-liquid mixing cavity, so that the gas-liquid mixing cavity flows out and releases pressure through the micro-nano bubble liquid generating device to form micro-nano bubble liquid. Although the generated micro-nano bubbles have high density and low cost, they are suitable for application in small devices; however, a large number of automatic valves are required, and the application is limited.

[0006] The prior art one, the prior art two and the prior art three have the problems of high cost of the gas-liquid mixing pump, the need for a gas pump, high noise, the need for a large number of automatic valves, and limited application. Therefore, the present application provides a micro-nano bubble continuous generation control system and device, which uses a simple system optimization, does not use a gas-liquid mixing pump, does not use a gas pump, and does not use a large number of automatic valves, automatically supplies gas, and realizes continuous generation of micro-nano bubbles. SUMMARY

[0007] To achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0008] In one aspect of the present application, a micro-nano bubble continuous generation control method is provided, which includes:

[0009] The number and residual volume of a plurality of gas dissolving tanks are obtained, the starting number of the gas dissolving tank switching program is set according to the number, and the residual volume of the gas dissolving tank is obtained by a liquid level sensor;

[0010] When the residual volume is equal to the total volume of the current gas dissolving tank, the current gas dissolving tank forms supersaturated water; the water pump is started to pump water into a new gas dissolving tank, and the water inlet of the current gas dissolving tank is closed; after the gas dissolving tank switching program is completed, the water making program of the current gas dissolving tank is started, the aeration and release functions are turned on, and micro-nano bubble water is formed;

[0011] The generated micro-nano bubble water is collected and sampled for detection, the particle size distribution and concentration parameters are detected, and the bubble generating device is optimized.

[0012] In an optional embodiment, the process of obtaining the residual volume of the gas dissolving tank by the liquid level sensor includes:

[0013] The number of pressure dissolving gas tanks is determined according to the number of liquid level sensors installed in the pressure dissolving gas tanks, and each pressure dissolving gas tank is numbered, and water is produced in the order of the number;

[0014] According to the obtained number of pressure dissolving gas tanks and the required micro-nano bubble water, and according to the evaluation of the working period and capacity of the pressure dissolving gas tank, the starting number of the pressure dissolving gas tank switching program is set;

[0015] The volume of the liquid contained in each pressure dissolving gas tank, i.e. the remaining volume, is obtained by the liquid level sensor inside each pressure dissolving gas tank.

[0016] In an alternative embodiment, the process of the dissolving tank switching program includes:

[0017] The obtained remaining volume is compared with the total volume of the current dissolving tank. If the remaining volume is less than the total volume of the current dissolving tank, continue to obtain the remaining volume data. If the remaining volume is equal to the total volume of the current dissolving tank, start the dissolving tank switching program;

[0018] Close the water inlet of the current dissolving tank, and open the water inlet of the next dissolving tank, so that the water in the water pump flows into the next dissolving tank, and the current dissolving tank switching program is completed;

[0019] After the dissolving tank switching program is completed, the water production program of the current dissolving tank is started, the aeration and water outlet functions of the current dissolving tank are opened, and micro-nano bubble water is formed. When the remaining volume is higher than a certain set threshold, the aeration and water outlet functions of the current dissolving tank are closed, and the water production program of the current dissolving tank is completed.

[0020] In an alternative embodiment, the process of setting the threshold value for starting the dissolving tank switching program includes:

[0021] The design total volume of the dissolving tank is obtained, the time required for the dissolving tank to be filled from the beginning to be full is recorded, and the time required for the dissolving tank to be completely emptied from the beginning to be empty is recorded. The average working time of the dissolving tank is calculated; determine the filling and emptying rate of the dissolving tank under normal working conditions, set a safety margin, the safety margin is set to 5% to 10% of the total volume; the filling threshold or the emptying threshold is the threshold value that needs to be triggered when the dissolving tank reaches a certain liquid level, and the threshold value is calculated by subtracting the safety margin from the total volume.

[0022] In an alternative embodiment, the process of opening the water inlet of the next dissolving tank includes:

[0023] The total opening value between the completely open and completely closed of the valve, the water inlet valve opening value of the current dissolving tank and the water inlet valve opening value of the next dissolving tank are obtained;

[0024] By adjusting the water inlet valve of the current dissolved air tank and the next dissolved air tank, the water inlet valve opening degree of the current dissolved air tank is equal to the difference between the total opening degree value and the next dissolved air tank opening degree value.

[0025] Real-time monitoring of the water pressure of the water flowing out of the water pump, when the current water pressure value is less than the preset water pressure threshold, then continue to monitor, when the current water pressure value is higher than the preset water pressure threshold, slow down the closing speed of the current dissolved air tank water inlet valve and speed up the opening speed of the next dissolved air tank water inlet valve until the water pressure is below the preset water pressure threshold.

[0026] In an optional embodiment, the process of opening the aeration and water outlet functions of the current dissolved air tank includes:

[0027] Starting the water production program, slowly opening the aeration valve of the current dissolved air tank, a one-way valve should be set between the aeration valve and the dissolved air tank, and the opening degree value of the aeration valve of the current dissolved air tank is collected in real time;

[0028] Slowly open the water outlet valve of the current dissolved air tank, and collect the opening degree value of the water outlet valve of the current dissolved air tank in real time;

[0029] Real-time collection of micro-nano bubble water flow rate outside the water outlet valve, and comparison of the collected flow rate data with the preset flow rate interval value, if the collected flow rate value is lower than the interval value, continue to open the aeration valve and water outlet valve of the current dissolved air tank, if the collected flow rate value is within the interval, maintain the current opening degree of the two valves, if the collected flow rate value is higher than the interval value, slowly reduce the opening degree of the two valves until the flow rate value is within the flow rate interval.

[0030] In an optional embodiment, the process of sampling and detecting micro-nano bubble water includes:

[0031] After the current dissolved air tank completes the water production program, sample the micro-nano bubble water flowing out of the water outlet valve, and detect the particle size and concentration of the micro-bubbles and nano-bubbles respectively;

[0032] The output micro-nano bubble water is sampled again, and the sample is put into a sample pool to generate its particle size distribution curve and provide statistical information such as its average value and median particle size; the remaining micro-nano bubble water is subjected to image processing and analysis to calculate its bubble volume fraction and concentration;

[0033] If the obtained particle size data or bubble concentration data is lower than the qualified threshold of micro-nano bubble water, display the number and unqualified information of the current dissolved air tank through the visual device, and remind the staff to handle it in time through the alarm sound.

[0034] In an optional embodiment, the process of calculating the bubble volume fraction and concentration includes:

[0035] The color image is converted into a gray image, the edge of the micro-bubble is identified by using a Canny edge detection algorithm, and a connected region in the image is identified, each connected region representing a bubble;

[0036] The volume of the detected micro-bubble is calculated according to the detected diameter, and the total bubble volume is obtained by adding the volumes of all the detected micro-bubbles.

[0037] The total number of the detected micro-bubbles is counted, the calculated volume fraction and concentration are recorded in a database, and the calculation result is compared with a preset qualified threshold value.

[0038] In another aspect of the present application, a micro-nano bubble continuous generation control system is provided to implement the micro-nano bubble continuous generation control method.

[0039] The data acquisition module is responsible for acquiring the number and residual volume of a plurality of gas dissolving tanks, setting the start number of the gas dissolving tank switching program according to the number, and obtaining the residual volume of the gas dissolving tank from the liquid level sensor.

[0040] The gas dissolving tank switching module starts the gas dissolving tank switching program when the residual volume is equal to the total volume of the current gas dissolving tank, and the current gas dissolving tank forms supersaturated water.

[0041] The quality detection module collects the generated micro-nano bubble water and performs sampling detection thereon to obtain the particle size distribution and concentration of the micro-nano bubble water, and optimizes the bubble generation device.

[0042] In another aspect of the present application, a micro-nano bubble continuous generation control device is provided to implement the micro-nano bubble continuous generation control method.

[0043] The water pump is connected to the first pressure gas dissolving tank, the second pressure gas dissolving tank, and the nth pressure gas dissolving tank through a plurality of water inlet valves.

[0044] The application can form supersaturated water by introducing the water flow of the water pump into multiple pressure gas dissolving tanks and dissolving gas in the tanks, and when the supersaturated water is released through the water outlet valve, a large amount of micro-nano bubbles can be naturally generated without additional air pump equipment, thereby reducing energy consumption and cost; the device is designed with multiple pressure gas dissolving tanks, which can sequentially perform the processes of gas dissolving and bubble releasing, and when the gas in one tank is completely dissolved and the bubbles are completely released, the next tank can be quickly switched to, so that continuous and stable production is realized, the production efficiency is improved, and the continuous supply of bubble water is ensured; by controlling the opening and closing of the water inlet valve, the air valve and the water outlet valve, the automatic operation of the device can be realized, the operation process is simplified, and the safety and stability of production are improved; without additional air pump equipment, the energy consumption is low during operation, which is conducive to energy saving and emission reduction. BRIEF DESCRIPTION OF DRAWINGS

[0045] The accompanying drawings are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and serve to explain the principles of the application, and do not constitute a limitation of the application. In the drawings:

[0046] Figure 1 The step flow chart of the micro-nano bubble continuous generation control method provided in embodiment 1 of the application;

[0047] Figure 2 The step flow chart of the remaining volume of the gas dissolving tank obtained by the liquid level sensor provided in embodiment 2 of the application;

[0048] Figure 3 The step flow chart of the gas dissolving tank switching program provided in embodiment 3 of the application;

[0049] Figure 4 The step flow chart of opening the water inlet of the next gas dissolving tank provided in embodiment 4 of the application;

[0050] Figure 5 The step flow chart of the gas dissolving tank air supply and water outlet cooperation provided in embodiment 5 of the application;

[0051] Figure 6 The step flow chart of the micro-nano bubble water detection provided in embodiment 6 of the application;

[0052] Figure 7 The block diagram of the micro-nano bubble continuous generation control system provided in embodiment 7 of the application;

[0053] Figure 8 The structural schematic diagram of the micro-nano bubble continuous generation control device provided in embodiment 8 of the application;

[0054] Figure 9 The block diagram of the electronic device provided by the application;

[0055] Figure 10 The computer readable storage medium provided in the present application is schematically shown. DETAILED DESCRIPTION

[0056] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application.

[0057] Hereinafter, the terms “first”, “second”, and the like are only used for description convenience, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with “first”, “second”, and the like can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified and limited, the meaning of “a plurality of” is two or more.

[0058] In the present application, unless otherwise explicitly specified and limited, the term “connection” should be understood broadly, for example, “connection” can be fixed mechanical connection, or detachable mechanical connection, or integral; or “connection” can be direct connection, or indirect connection through intermediate medium. In addition, unless otherwise explicitly specified and limited, the term “coupling” should be understood broadly, for example, “coupling” can be direct electrical connection, for example, physical contact and electrical conduction between two components, or can be understood as electrical connection between different components through solid lines such as copper foil or wire of printed circuit board (PCB) in line structure to transmit electrical signals; or “coupling” can be indirect electrical connection between two components through intermediate medium; or “coupling” can be electrical connection between two components through space / non-contact, for example, capacitive coupling between two components to transmit electrical signals.

[0059] In the embodiments of the present application, the orientation terms such as “up”, “down”, “left”, “right”, and the like can include but not limited to the orientation defined by the relative position of the components in the drawings, and it should be understood that these directional terms can be relative concepts, which are used for relative description and clarification, and can be changed accordingly according to the change of the position of the components in the drawings.

[0060] Embodiments of the present application can be widely applied in many fields, including but not limited to: water treatment industry: for improving water quality, removing harmful substances in water; agricultural irrigation: improving soil aeration and fertility through micro-nano bubble water; food processing: for food cleaning and preservation, improving food safety; healthcare: for skin care and wound healing, promoting cell regeneration; through this precise control method, the generation process of micro-nano bubbles is more stable and efficient, which can meet the needs of different industries for high-quality micro-nano bubble water.

[0061] Embodiment 1:

[0062] As shown in the figure, the micro-nano bubble continuous generation control method provided by the embodiments of the present application comprises the following steps: Figure 1

[0063] Step S100: Obtain the number and remaining volume of a plurality of gas dissolving tanks, set the start number of the gas dissolving tank switching program according to the number, and obtain the remaining volume of the gas dissolving tank from the liquid level sensor;

[0064] Step S200: When the remaining volume is equal to the total volume of the current gas dissolving tank, the current gas dissolving tank forms supersaturated water; start the gas dissolving tank switching program, pump water into a new gas dissolving tank, and close the water inlet of the current gas dissolving tank; after the completion of the gas dissolving tank switching program, start the water making program of the current gas dissolving tank, open the aeration and release functions, and form micro-nano bubble water;

[0065] Step S300: Collect the generated micro-nano bubble water and sample detect it, sample detect its particle size distribution and concentration parameters, and optimize the bubble generating device.

[0066] ​In the above embodiments, the step S100 of the present embodiment accurately obtains the number and the remaining volume of the dissolved air tanks, sets the number of starts of the program according to the number of the dissolved air tanks, and ensures the orderly operation of the switching operation; the liquid level sensor monitors the remaining volume of the dissolved air tank in real time, improving the accuracy and real-time performance of the data; in the step S200, when the remaining volume is equal to the total volume, it is determined that the current dissolved air tank has been measured to be supersaturated with water, and the switching program is started in time; after the switching program is completed, the water making program is started, realizing continuous water making of the dissolved air tank; the aeration and release functions are turned on to form micro-nano bubble water to meet the production demand; in the step S300, the generated micro-nano bubble water is collected and sampled for detection to ensure its quality; the sampling sample is detected for parameters such as particle size distribution and concentration to provide a basis for optimization of the bubble generating device; according to the detection result, the device is optimized to improve the generation quality and efficiency of the bubbles; reliable data support is provided for stable operation of the device, avoiding operation errors caused by inaccurate data; the degree of automation of the device is improved, reducing the demand for manual intervention; the continuous water making of the dissolved air tank and the stable generation of the bubble water are ensured, and the production efficiency is improved; by timely switching of the dissolved air tank, safety hazards caused by supersaturation of the dissolved air tank are avoided; the quality of the micro-nano bubble water is ensured to meet the needs of different application scenarios; through continuous quality detection and device optimization, the performance and stability of the bubble generating device are improved; reliable technical support and protection are provided for the application of micro-nano bubble technology, promoting the development of related industries.

[0067] Embodiment 2

[0068] As shown in the embodiment 1, in the step S100, the process of obtaining the remaining volume of the dissolved air tank by the liquid level sensor provided by the present embodiment includes the following steps: Figure 2

[0069] Step S101: Determine the number of pressure dissolved air tanks according to the number of liquid level sensors installed in each pressure dissolved air tank, and number each pressure dissolved air tank. Water making is performed in the order of numbering during water making;

[0070] Step S102: According to the obtained number of pressure dissolved air tanks and the required amount of micro-nano bubble water, and according to the evaluation of the working period and capacity of the pressure dissolved air tank, set the number of starts of the pressure dissolved air tank switching program;

[0071] The equation for calculating the number of pressure dissolved air tank switching times is:

[0072]

[0073] In the equation, N switch represents the number of starts of the pressure dissolved air tank switching program, Q total represents the total water volume of the required micro-nano bubbles, and the unit is cubic meters (m​3 ), T cycle represents the working period of the pressure dissolved air tank, in hours (h), ΔT represents the environmental temperature change, in degrees Celsius (℃), T ref represents the reference temperature, in degrees Celsius (℃), ΔP represents the pressure change, in Pascals (Pa), P ref represents the reference pressure, in Pascals (Pa), V tank represents the volume of a single pressure dissolved air tank, in cubic meters (m 3 ), η represents the efficiency coefficient of the pressure dissolved air tank, indicating the utilization rate of the dissolved air tank in actual operation, usually a number between 0 and 1, L initial represents the initial liquid level of the dissolved air tank, in cubic meters (m 3 ), σ sensor represents the accuracy of the liquid level sensor, in cubic meters (m 3 ), L max represents the maximum measurement range of the liquid level sensor, in cubic meters (m 3 ), represents the upward rounding symbol, indicating rounding the calculation result upward to the nearest integer; the temperature and pressure correction factors represent and are used to correct the influence of environmental temperature and pressure changes on the operation of the dissolved air tank, the initial liquid level correction factor represents is used to consider the influence of the initial liquid level of the dissolved air tank on the available volume, and the sensor accuracy correction factor represents is used to consider the influence of the accuracy of the liquid level sensor on the measurement result. Through this equation, the switching frequency of the pressure dissolved air tank can be calculated more accurately, ensuring efficient water production operation under various actual conditions;

[0074] Step S103: Obtain the volume of the liquid contained in each pressure dissolved air tank, i.e. the remaining volume, through the liquid level sensor inside each pressure dissolved air tank.

[0075] In the above embodiments, step S101 determines the number of pressure dissolving tanks according to the number of liquid level sensors, numbers each pipe, and performs water production in the numbered order; ensures that each pressure dissolving tank is effectively utilized, and that the water production process is orderly; through numbering and sequential water production, water production efficiency can be improved, confusion and errors can be reduced, and the load balance of each tank can be ensured; step S102 sets the number of start times of the switching program according to the number of pressure dissolving tanks, the required amount of micro-nano bubble water, and the evaluation of the working cycle and capacity; ensures that the water supply during the water production process matches the demand, and avoids resource waste or deficiency; by reasonably setting the number of switches, the water production process can be optimized, resource utilization can be improved, and the demand for micro-nano bubble water can be met; step S103 obtains the remaining volume in each pressure dissolving tank through the liquid level sensor; real-time monitoring of the liquid volume in the tank provides a basis for switching and water production decision-making; through real-time monitoring, water production strategies and switching sequences can be adjusted in a timely manner to avoid excessive or insufficient liquid in the tank, and ensure the stability and efficiency of the water production process.

[0076] Embodiment 3

[0077] As shown in the embodiment 1, the process of the dissolving tank switching program in step S200 provided by the embodiment of the application comprises the following steps: Figure 3

[0078] Step S201: Compare the obtained remaining volume with the total volume of the current dissolving tank, if the remaining volume is less than the total volume of the current dissolving tank, continue to obtain the remaining volume data; if the remaining volume is equal to the total volume of the current dissolving tank, start the dissolving tank switching program;

[0079] The threshold setting process for starting the dissolving tank switching program is as follows:

[0080] The design total volume of the dissolving tank is obtained, the time required for the dissolving tank to fill from the start of water filling to full is recorded, and the time required for the dissolving tank to completely empty from the start of water discharge is recorded; the average working time of the dissolving tank is calculated; the water filling and water discharge rates of the dissolving tank under normal working conditions are determined, and a safety margin is set, which is set to 5% to 10% of the total volume; the water filling threshold or the water discharge threshold is the threshold at which the dissolving tank needs to trigger water filling or water discharge when reaching a certain liquid level, and the threshold is calculated by subtracting the safety margin from the total volume.

[0081] Step S202: Close the water inlet of the current dissolving tank, and open the water inlet of the next dissolving tank, so that the water in the water pump flows into the next dissolving tank, and the current dissolving tank switching program is ended after completion;

[0082] ​Step S203: After the air tank switching program ends, start the water making program of the current air tank, open the aeration and water outlet functions of the current air tank to form micro-nano bubble water; when the remaining volume is higher than a certain set threshold, close the aeration and water outlet functions of the current air tank, and the water making program of the current air tank ends.

[0083] In the above embodiment, step S201 of the present embodiment detects the remaining volume of the air tank in real time, ensuring the accuracy and timeliness of the data; by comparing the remaining volume and the total volume, it is determined whether the air tank switching program needs to be started; the situation of excessive filling or early switching of the air tank is avoided, and the running efficiency and stability of the equipment are improved; the continuity of the water making process is ensured, and the water making process will not be interrupted due to switching of the air tank; step S202 realizes smooth switching of the air tank, avoiding the influence of sudden interruption or change of water flow on the system; by closing and opening the water inlet valve, it is ensured that the water in the water pump can flow smoothly into the next air tank; the continuity of the water making process is ensured, and equipment damage or safety accidents caused by improper switching are avoided; the degree of automation of the equipment is improved, and the complexity and errors of manual operation are reduced; after step S203 starts the water making program, the air tank starts to produce micro-nano bubble water, meeting the specific water making requirements; when the remaining volume is higher than a certain set threshold, the aeration and water outlet functions are closed in time, ensuring the efficiency and accuracy of the water making process and meeting the user's demand for micro-nano bubble water; by accurately controlling the aeration and water outlet functions, the rational use and conservation of energy are realized.

[0084] Embodiment 4:

[0085] As shown in Figure 4 On the basis of embodiment 3, the process of opening the water inlet of the next air tank in step S202 provided by the present embodiment includes the following steps:

[0086] Step S2021: obtaining the total opening value between the completely opened and completely closed valve, the water inlet valve opening value of the current air tank and the water inlet valve opening value of the next air tank;

[0087] Step S2022: by adjusting the water inlet valves of the current air tank and the next air tank, the water inlet valve opening value of the current air tank is equal to the difference between the total opening value and the next air tank opening value;

[0088] Step S2023: real-time monitoring of the water pressure of the water flowing out of the water pump; when the current water pressure value is less than the preset water pressure threshold, continue to monitor; when the current water pressure value is higher than the preset water pressure threshold, slow down the closing speed of the water inlet valve of the current air tank and speed up the opening speed of the water inlet valve of the next air tank until the water pressure is below the preset water pressure threshold.

[0089] In the above embodiment, the step S2021 of the embodiment first acquires the total opening value of the valve, the water inlet valve opening value of the current dissolved air tank and the water inlet valve opening value of the next dissolved air tank. By acquiring these key data, it can be ensured that the adjustment process is based on accurate information, which helps to realize more accurate flow distribution and pressure control; in step S2022, according to the acquired data, the water inlet valves of the current dissolved air tank and the next dissolved air tank are adjusted, so that the water inlet valve opening of the current dissolved air tank is equal to the difference between the total opening value and the opening value of the next dissolved air tank, realizing the reasonable distribution of flow; by accurately adjusting the opening of the water inlet valve, the stable operation of the system can be ensured, and the efficiency decline or equipment damage caused by uneven flow distribution can be avoided; in step S2023, the water pressure flowing out of the water pump is monitored in real time, and the opening and closing speed of the water inlet valve is adjusted according to the water pressure value; when the water pressure is equal to the preset threshold value, the water pressure is adjusted by slowing down the closing speed of the water inlet valve of the current dissolved air tank and speeding up the opening speed of the water inlet valve of the next dissolved air tank (the slowing down and speeding up are preset by the system); it is ensured that the water pressure of the system is always within a safe and stable range; by dynamically adjusting the opening and closing speed of the water inlet valve, equipment damage or system instability caused by excessive water pressure can be effectively avoided.

[0090] Embodiment 5

[0091] As shown in the embodiment 3, the process of opening the aeration and water outlet functions of the current dissolved air tank in step S203 provided by the embodiment of the application comprises the following steps: Figure 5

[0092] Step S2031: starting the water production program, slowly opening the aeration valve of the current dissolved air tank, a one-way valve should be arranged between the aeration valve and the dissolved air tank, and the opening value of the aeration valve of the current dissolved air tank is collected in real time;

[0093] Step S2032: slowly opening the water outlet valve of the current dissolved air tank, and collecting the opening value of the water outlet valve of the current dissolved air tank in real time;

[0094] Step S2033: collecting the flow rate of the micro-nano bubble water outside the water outlet valve in real time, and comparing the collected flow rate data with the preset flow rate interval value; if the collected flow rate value is lower than the interval value, continue to open the aeration valve and the water outlet valve of the current dissolved air tank; if the collected flow rate value is within the interval, keep the current opening of the two valves; if the collected flow rate value is higher than the interval value, slowly reduce the opening of the two valves until the flow rate value is within the flow rate interval.

[0095] ​In the above embodiments, step S2031 ensures the entire water production system starts operating, avoiding impact on the system due to sudden pressure changes during aeration, and ensuring stable system operation; it also ensures a smooth start-up of the water production process, preventing damage due to sudden pressure changes in the system. Step S2032 protects the micro-nano bubble water from sudden pressure changes, providing a data basis for precise system control. Step S2033 provides real-time information on the system's water output status, ensuring the water flow rate meets design requirements, neither too fast nor too slow; when the flow rate is below the range value, the valve continues to be opened to increase the flow rate, ensuring water output efficiency; when the flow rate is within the range, the current state is maintained, ensuring stable system operation; when the flow rate is above the range value, the valve opening is reduced to decrease the flow rate, preventing damage to the quality of the micro-nano bubble water.

[0096] Example 6:

[0097] like Figure 6 As shown, based on Example 1, the process of detecting micro-nano bubble water in step S300 provided in this embodiment of the invention includes the following steps:

[0098] Step S301: After the dissolved air tank completes the water production process, sample the micro-nano bubble water flowing out of the outlet valve and test the particle size and concentration of micron bubbles and nano bubbles respectively.

[0099] Step S302: Take a second sample of the produced micro-nano bubble water and put the sample into the sample cell to generate its particle size distribution curve and provide statistical information such as its average value and median particle size; perform image processing and analysis on the sampled remaining micro-nano bubble water to calculate its bubble volume fraction and concentration.

[0100] The process of calculating the volume fraction and concentration of bubbles includes:

[0101] The color image is converted to a grayscale image, and the Canny edge detection algorithm is used to identify the edges of microbubbles and identify connected regions in the image, with each connected region representing a microbubble.

[0102] The volume of each microbubble is calculated by measuring its diameter, and the total volume of the microbubble is obtained by summing the volumes of all detected microbubbles.

[0103] The total number of detected microbubbles is counted, the calculated volume fraction and concentration are recorded in the database, and the calculation results are compared with the preset qualified threshold.

[0104] Step S303: If the obtained particle size data or bubble concentration data is lower than the qualified threshold for micro-nano bubble water, the number of the current dissolved air tank and the non-compliance information will be displayed through the visualization device, and an alarm sound will be used to remind the staff to handle it in time.

[0105] In the above embodiment, step S301 of this embodiment involves sampling the micro / nano bubble water flowing out of the outlet valve after the dissolved air tank completes the water production process. The particle size and concentration of micron-sized and nano-sized bubbles are measured to ensure that representative samples are obtained from the micro / nano bubble water produced by the dissolved air tank for analysis and evaluation. Sampling is the primary step in quality control, providing fundamental data for evaluation and ensuring the accuracy and reliability of the analysis results. Step S302 involves re-sampling the produced micro / nano bubble water and analyzing its particle size distribution and bubble concentration. Through the particle size distribution curve and statistical information, the characteristics of the bubbles can be understood. The size distribution and average size of the bubbles are measured, while the volume fraction and concentration of the bubbles reflect their density. Accurate measurement of bubble size and concentration helps assess the quality and performance of micro / nano bubble water, ensuring the product meets predetermined standards and requirements. In step S303, if the data falls below the acceptable threshold, staff are alerted via visualization and alarm sounds, enabling real-time monitoring and rapid response. When non-conforming products are detected, staff can be immediately notified for handling. Timely feedback and alarms prevent non-conforming products from entering the market, ensuring product quality while improving production efficiency and safety. Nanobubble detection can be performed using online laser particle size analyzers (DLS), etc.

[0106] Example 7:

[0107] like Figure 7 As shown, based on Examples 1-6, the micro / nano bubble continuous generation control device system provided in this embodiment of the invention includes:

[0108] The data acquisition module is responsible for acquiring the number and remaining volume of several dissolved gas tanks, setting the number of times the dissolved gas tank switching program is started based on the number, and obtaining the remaining volume of the dissolved gas tanks from the liquid level sensor.

[0109] The dissolved air tank switching module, when the remaining volume is equal to the total volume of the current dissolved air tank, the current dissolved air tank forms supersaturated water; the dissolved air tank switching program is started, water is pumped into the new dissolved air tank, and the water inlet of the current dissolved air tank is shut off; after the dissolved air tank switching program is completed, the water production program of the current dissolved air tank is started, the aeration and release functions are turned on, and micro-nano bubble water is formed.

[0110] The quality inspection module collects the generated micro-nano bubble water and samples it for testing, including parameters such as particle size distribution and concentration, thereby optimizing the bubble generating device.

[0111] In the above embodiments, the data acquisition module of the present embodiment can acquire the number and residual volume information of the dissolved air tanks in real time and accurately; the number of the dissolved air tanks can be used to intelligently set the number of start-ups of the switching program, ensuring the coherence and efficiency of the system operation; the liquid level sensor can be used to accurately monitor the residual volume of the dissolved air tank, improving the accuracy and real-time performance of data acquisition; the intelligent operation of the system can be provided with reliable data support, ensuring that the system can be dynamically adjusted according to actual needs; the degree of automation of the system can be improved, manual intervention can be reduced, and operating costs can be reduced; the switching of the dissolved air tank and the start of the water production program can be provided with accurate basis, ensuring the stable operation of the system; the switching module of the dissolved air tank can start the switching program in time when the dissolved air tank reaches the supersaturation state, avoiding system overload and safety hazards; during the switching process, the water pump can be ensured to enter the new dissolved air tank, and the water inlet of the current dissolved air tank can be closed, realizing seamless switching; after the switching is completed, the water production program can be started automatically, and the aeration and release functions can be turned on, ensuring the stable generation of micro-nano bubble water; the reliability and stability of the system can be improved, ensuring the continuous production of micro-nano bubble water; by switching the dissolved air tank in time, the service life of the dissolved air tank can be prolonged, and the maintenance cost can be reduced; the operation efficiency of the system can be optimized, and the yield and quality of the micro-nano bubble water can be improved; the quality detection module can sample and detect the generated micro-nano bubble water, ensuring that it meets the quality standards; by detecting the particle size distribution and concentration of the upper sample and other parameters, data support can be provided for the optimization of the bubble generating device; the device can be optimized according to the detection results, improving the generation efficiency and stability of the bubbles; the quality and safety of the micro-nano bubbles can be ensured, meeting the user's needs; through continuous quality detection and device optimization, the performance and stability of the system can be improved; reliable technical support and protection can be provided for the application of micro-nano bubble technology.

[0112] As shown in Figure 8 The present embodiment provides a micro-nano bubble continuous generation control device, which comprises a water pump 1, a water inlet valve 2, an aeration valve 3, a water outlet valve 4, a first pressure dissolved air tank 5, a second pressure dissolved air tank 6, and an nth pressure dissolved air tank 7.

[0113] The water pump 1 is connected to the first pressure dissolved air tank 5, the second pressure dissolved air tank 6, and the nth pressure dissolved air tank 7 through a plurality of water inlet valves 2; the top of each pressure dissolved air tank is connected to the aeration valve 3, and the bottom of each pressure dissolved air tank is connected to the water outlet valve 4 or is connected to a water collecting tank.

[0114] In the above embodiments, the first gas dissolving tank 5 of the present embodiment is empty before the water pump 1 is started, that is, it contains air. Starting the water pump 1 makes water enter the first pressure gas dissolving tank 5, and the gas in the tank will continue to dissolve into the water to form supersaturated water, which generates micro-nano bubbles through the water outlet valve 4. The liquid level in the tank continues to rise as the gas in the tank continues to dissolve into the water, until all the gas in the tank is dissolved. At this time, the water inlet valve 2 of the first gas dissolving tank 5 is closed, and the water outlet of the water pump 1 is switched to the second pressure gas dissolving tank 6, and the process of dissolving gas and releasing micro-nano bubbles is repeated. At the same time, the air valve 3 at the top of the first pressure gas dissolving tank 5 is opened, and the solution remaining in the pipe flows out through the water outlet valve 4 by gravity, and air naturally enters. In this way, micro-nano bubble water can be continuously generated, but no air pump is needed. By introducing the water flow of the water pump into multiple pressure gas dissolving tanks and dissolving gas in the tanks, supersaturated water can be formed. When this supersaturated water is released through the water outlet valve, a large number of micro-nano bubbles will be naturally generated without the need for additional air pump equipment, thereby reducing energy consumption and cost. The device is designed with multiple pressure gas dissolving tanks, which can sequentially dissolve gas and release bubbles. When the gas in one tank is completely dissolved and the bubbles are completely released, the device can be quickly switched to the next tank to realize continuous and stable production, improve production efficiency, and ensure the continuous supply of bubble water. By controlling the opening and closing of the water inlet valve, the air valve and the water outlet valve, the device can be automatically operated, simplifying the operation process and improving the safety and stability of production. Without additional air pump equipment, the energy consumption during operation is low, which is conducive to energy saving and emission reduction.

[0115] Figure 9 A block diagram of an exemplary electronic device suitable for implementing embodiments of the present application is shown.

[0116] The electronic device can include a central processor / microprocessor / master control chip, etc.; a storage medium coupled to the central processor / microprocessor / master control chip, etc., and storing computer executable instructions therein for performing the steps of various methods of embodiments of the present application when executed by the processor.

[0117] The central processor / microprocessor / master control chip, etc. can include but is not limited to, for example, one or more processors or microprocessors, etc.

[0118] The storage medium can include but is not limited to, for example, random access memory (RAM), read only memory (ROM), flash memory, EPROM memory, EEPROM memory, registers, computer storage media (such as hard disks, floppy disks, solid state disks, removable disks, CD-ROMs, DVD-ROMs, Blu-ray discs, etc.).

[0119] In addition, the electronic device can further include, but is not limited to, a data bus, an input / output bus / external bus / device bus, and the like, a display, and an input / output device (for example, a keyboard, a mouse, a speaker, and the like), and the like.

[0120] The central processor / microprocessor / master control chip, and the like, can communicate with external devices through the I / O bus via a wired or wireless network (not shown).

[0121] The storage medium can further store at least one computer-executable instruction for performing the steps of the various functions and / or methods in the embodiments described in the present technology when executed by the central processor / microprocessor / master control chip, and the like.

[0122] In one embodiment, the at least one computer-executable instruction can also be compiled or constitute a software product in which one or more computer-executable instructions are executed by a processor to perform the steps of the various functions and / or methods in the embodiments described in the present technology.

[0123] Figure 10 A schematic diagram of a computer-readable storage medium according to an embodiment of the present application is shown.

[0124] As Figure 10 shown, a non-transitory computer-readable storage medium stores instructions, for example, computer-readable instructions. When the computer-readable instructions are executed by a processor, the various methods described above can be performed. The non-transitory computer-readable storage medium includes, but is not limited to, for example, a volatile memory and / or a non-volatile memory. The volatile memory can include, for example, a random access memory (RAM) and / or a cache memory, and the like. The non-transitory non-volatile memory can include, for example, a read-only memory (ROM), a hard disk, a flash memory, and the like. For example, the non-transitory computer-readable storage medium can be connected to a computing device such as a computer, and then, when the computing device executes the computer-readable instructions stored on the computer-readable storage medium 920, the various methods described above can be performed.

[0125] In several embodiments provided by the present application, it should be understood that the disclosed apparatus and method can be implemented in other ways. For example, the apparatus embodiments described above are merely schematic. For example, the division of units is merely a logical function division, and actual implementation can have another division manner. For example, multiple units or components can be combined or integrated into another system, or some features can be omitted or not executed. In addition, the coupling or direct coupling or communication connection between the units shown or discussed can be indirect coupling or communication connection through some interfaces, devices or units, and can be electrical, mechanical or other forms.

[0126] The units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, i.e. may be located in one place, or may be distributed on multiple network units. Part or all of the units may be selected according to actual needs to achieve the purpose of the embodiment scheme.

[0127] In addition, each functional unit in each embodiment of the application can be integrated in one processing unit, or each unit can exist physically, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of a software functional unit.

[0128] If the integrated unit is realized in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the application or the part of the prior art that essentially contributes or the whole or part of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes a plurality of instructions for executing all or part of the steps of the embodiments of the application by a computer device (which can be a personal computer, a server, or a network device, etc.). The aforementioned storage medium includes: a U disk, a mobile hard disk, a read-only memory (English full name: Read-Only Memory, English abbreviation: ROM), a random access memory (English full name: Random Access Memory, English abbreviation: RAM), a magnetic disk or an optical disk, and various program code storage media.

[0129] The above, the above embodiments are only used to illustrate the technical solutions of the application, and not to limit them; although the application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the application.

Claims

1. A method for controlling the continuous generation of micro / nano bubbles, characterized in that, The method for controlling the continuous generation of micro / nano bubbles includes: The number and remaining volume of several dissolved gas tanks are obtained. The number of times the dissolved gas tank switching program is started is set according to the number. The remaining volume of the dissolved gas tank is obtained by the liquid level sensor. When the remaining volume is equal to the total volume of the current dissolved air tank, the current dissolved air tank becomes supersaturated with water; the dissolved air tank switching program is started, water is pumped into the new dissolved air tank, and the water inlet of the current dissolved air tank is shut off; after the dissolved air tank switching program is completed, the water production program of the current dissolved air tank is started, the aeration and release functions are turned on, and micro-nano bubble water is formed. The generated micro-nano bubble water is collected and sampled for testing. The particle size distribution and concentration parameters are measured to optimize the bubble generating device. The process of switching procedures for dissolved gas tanks includes: The remaining volume is compared with the total volume of the current dissolved gas tank. If the remaining volume is less than the total volume of the current dissolved gas tank, the remaining volume data is continuously acquired. If the remaining volume is equal to the total volume of the current dissolved gas tank, the dissolved gas tank switching procedure is initiated. Close the water inlet of the current dissolved air tank and open the water inlet of the next dissolved air tank, so that the water in the pump flows into the next dissolved air tank. Once this is completed, the current dissolved air tank switching procedure ends. Setting the threshold for initiating the dissolved gas tank switching procedure includes the following steps: Obtain the total design volume of the dissolved air tank, record the time required for the tank to be filled from the start of filling, and record the time required for the tank to be completely emptied from the start of draining; calculate the average working time of the dissolved air tank; determine the filling and draining rates of the dissolved air tank under normal working conditions, and set a safety margin of 5% to 10% of the total volume; the trigger threshold for filling or draining is the threshold at which the dissolved air tank needs to be triggered to fill or drain when it reaches a certain liquid level, and the threshold is calculated by subtracting the safety margin from the total volume; The process of opening the inlet water for the next dissolved air tank includes: Obtain the total opening value between when the valve is fully open and when it is fully closed, the opening value of the inlet valve of the current dissolved air tank, and the opening value of the inlet valve of the next dissolved air tank; By adjusting the inlet valves of the current dissolved air tank and the next dissolved air tank, the opening degree of the inlet valve of the current dissolved air tank is made equal to the difference between the total opening value and the opening value of the next dissolved air tank. The system monitors the water pressure flowing from the pump in real time. If the current water pressure is less than the preset water pressure threshold, the monitoring continues. If the current water pressure is higher than the preset water pressure threshold, the system slows down the closing speed of the current dissolved air tank inlet valve and speeds up the opening speed of the next dissolved air tank inlet valve until the water pressure drops below the preset water pressure threshold.

2. The method for controlling the continuous generation of micro / nano bubbles as described in claim 1, characterized in that, The process by which the level sensor determines the remaining volume of the dissolved gas tank includes: The number of pressure dissolved air tanks is determined based on the number of liquid level sensors installed inside each pressure dissolved air tank, and each pressure dissolved air tank is numbered. Water is produced in the order of the numbers during water production. Based on the number of pressure dissolved air tanks and the required amount of micro-nano bubble water, and based on the assessment of the working cycle and capacity of the pressure dissolved air tanks, the number of times the pressure dissolved air tank switching program is started is set. The volume of liquid contained in each pressure dissolved gas tank is obtained by the liquid level sensor inside each pressure dissolved gas tank, i.e., the remaining volume.

3. The method for controlling the continuous generation of micro / nano bubbles as described in claim 1, characterized in that, The process of activating the aeration and water dispensing functions of the current dissolved air tank includes: Start the water production process and slowly open the vent valve of the current dissolved air tank. A one-way valve should be installed between the vent valve and the dissolved air tank, and the opening value of the vent valve of the current dissolved air tank should be collected in real time. Slowly open the outlet valve of the dissolved air tank and collect the opening value of the outlet valve of the dissolved air tank in real time; The flow rate of micro-nano bubble water outside the outlet valve is collected in real time, and the collected flow rate data is compared with the preset flow rate range. If the collected flow rate value is lower than the range value, the air valve and outlet valve of the dissolved air tank are kept open. If the collected flow rate value is within the range, the current opening of the two valves is maintained. If the collected flow rate value is higher than the range value, the opening of the two valves is slowly reduced until the flow rate value is within the flow rate range.

4. The method for controlling the continuous generation of micro / nano bubbles as described in claim 1, characterized in that, The process of sampling and testing micro-nano bubble water includes: After the dissolved air tank completes the water production process, the micro-nano bubble water flowing out of the outlet valve is sampled, and the particle size and concentration of micron bubbles and nano bubbles are detected respectively. The produced micro-nano bubble water is sampled again and placed in a sample cell to generate its particle size distribution curve and provide its average and median particle size statistics; the remaining sampled micro-nano bubble water is image-processed and analyzed to calculate its bubble volume fraction and concentration. If the obtained particle size or bubble concentration data is lower than the qualified threshold for micro-nano bubble water, the current dissolved air tank number and non-compliance information will be displayed through a visualization device, and an alarm will be sounded to remind staff to handle the situation in a timely manner.

5. The method for controlling the continuous generation of micro / nano bubbles as described in claim 4, characterized in that, The process of calculating the volume fraction and concentration of bubbles includes: The color image is converted to a grayscale image, and the Canny edge detection algorithm is used to identify the edges of microbubbles and identify connected regions in the image, with each connected region representing a bubble. The volume of each microbubble is calculated by measuring its diameter, and the total volume of the microbubble is obtained by summing the volumes of all detected microbubbles. The total number of detected microbubbles is counted, the calculated volume fraction and concentration are recorded in the database, and the calculation results are compared with the preset qualified threshold. The nanobubbles were detected using an online laser particle size analyzer.

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