A water circulation method, system and controller for package substrate production

Abstract

The application discloses a kind of water circulation method, system and controller of packaging substrate production, method includes: obtaining the water information of packaging substrate production module;According to water information, the pump water flow of circulating water pump is determined;Obtain the pipeline information between packaging substrate production module and circulating water pump;According to pipeline information, the lift of circulating water pump is determined;According to pump water flow and lift, the operating parameter of circulating water pump is determined;Control packaging substrate production module to obtain cooling water after the use water after being used by several process units is recycled to cooling module and is cooled;Control cooling module to obtain recycled water after cooling water is transported to recovery module.Can improve the utilization of water resources, can be widely applied in packaging substrate production technical field.

Description

Technical Field

[0001] This invention relates to the field of packaging substrate manufacturing technology, and in particular to a water circulation method, system and controller for packaging substrate manufacturing. Background Technology

[0002] In the production process of packaging substrates, water is required for cleaning or cooling in many horizontal processes such as copper reduction, copper plating, lamination, circuitry, solder mask, electroplating, cleaning, and OSP (Organic Solderability Preservative) to ensure the production of packaging substrates.

[0003] In the existing packaging substrate production process, pure water is continuously supplied to the production line of the packaging substrate through a water supply system, and the used wastewater is discharged through a drain pipe, resulting in water waste. Summary of the Invention

[0004] In view of this, the purpose of this invention is to provide a water recycling method, system and controller for packaging substrate production, which can improve the utilization rate of water resources.

[0005] In a first aspect, embodiments of the present invention provide a water circulation method for producing a packaging substrate, applied to a water circulation system. The water circulation system includes a recycling module, a circulating filtration module, a packaging substrate production module, and a cooling module. The circulating filtration module includes a circulating water pump and a circulating water filtration unit. The water circulation method for producing the packaging substrate includes:

[0006] Obtain water usage information for the packaging substrate production module, wherein the water usage information represents the real-time water usage requirements of one or more processes;

[0007] The pump flow rate of the circulating water pump is determined based on the water usage information.

[0008] Obtain the pipeline information between the packaging substrate production module and the circulating water pump;

[0009] The head of the circulating water pump is determined based on the pipeline information;

[0010] The operating parameters of the circulating water pump are determined based on the pump flow rate and head, so that the circulating water pump can transport the recycled water from the recycling module to the circulating water filtration unit for multi-stage filtration, and transport the recycled water with different filtration levels to several process units of the packaging substrate production module, with different process units indicating different processes.

[0011] The packaging substrate production module controls the recycling of the used water from several process units to the cooling module for cooling to obtain cooling water;

[0012] The cooling module is controlled to deliver cooling water to the recycling module to obtain recycled water.

[0013] In some optional embodiments, determining the head of the circulating water pump based on the pipeline information includes:

[0014] Based on the pipeline information, determine the pipeline dimensions, curvature, and smoothness between the packaging substrate production module and the circulating water pump;

[0015] The pipe resistance loss coefficient is determined based on the pipe size information, the pipe curvature, and the pipe smoothness.

[0016] The head is determined based on the pipeline resistance loss coefficient.

[0017] In some optional embodiments, the circulating water filtration unit includes a primary filtration device, a secondary filtration device, and a tertiary filtration device. A primary water pump and a first multi-way valve are installed on a first main pipeline between the primary and secondary filtration devices. The first multi-way valve is connected to a first process unit of the packaging substrate production module through the first pipeline. A secondary water pump and a second multi-way valve are installed on a second main pipeline between the secondary and tertiary filtration devices. The second multi-way valve is connected to a second process unit of the packaging substrate production module through the second pipeline. A tertiary water pump and a third multi-way valve are installed on a third main pipeline between the tertiary filtration device and the packaging substrate production module. The third multi-way valve is connected to a third process unit of the packaging substrate production module through the third main pipeline and / or the third pipeline. The circulating water filtration unit performs multi-stage filtration and delivers recycled water with different filtration levels to several process units of the packaging substrate production module, including:

[0018] The first filtered water is obtained by mechanically filtering the recycled water through the primary filtration device.

[0019] The first filtered water is transported to the first process unit and / or the first-stage filtration device through the first-stage water pump, the first multi-way valve, the first-stage pipeline and the first main pipeline;

[0020] The second filtered water is obtained by filtration of the first filtered water with activated carbon through the secondary filtration device.

[0021] The second filtered water is transported to the second process unit and / or the third-stage filtration device via the second-stage water pump, the second multi-way valve, the second pipeline, and the second main pipeline.

[0022] The third filtered water is obtained by precisely filtering the second filtered water through the three-stage filtration device.

[0023] The third filtered water is transported to the third process unit via the third stage water pump, the third multi-way valve, the third pipeline, and the third main pipeline.

[0024] In some optional embodiments, the water circulation system further includes a chemical supply module, which is connected to the primary filtration device, the secondary filtration device, and the tertiary filtration device, respectively. The method further includes:

[0025] Obtain the first pH requirement information of the first process unit, the second pH requirement information of the second process unit, and the third pH requirement information of the first process unit;

[0026] Based on the first pH requirement information, the first type and first quantity of medicine delivered by the medicine supply module to the first-stage filtration device are determined.

[0027] The second type and second quantity of medicine delivered by the medicine supply module to the secondary filtration device are determined based on the first pH requirement information and the second pH requirement information.

[0028] Based on the first pH requirement information, the second pH requirement information, and the third pH requirement information, the third drug type and the third drug quantity delivered by the drug supply module to the three-stage filtration device are determined.

[0029] In some optional embodiments, determining the pipe resistance loss coefficient based on the pipe size information, the pipe curvature, and the pipe smoothness includes the following formula:

[0030]

[0031] Wherein, K represents the pipe resistance loss coefficient, a, b, and c represent constant coefficients of different values, ν represents the water flow velocity in the pipe, γ represents the water viscosity, ρ represents the water density, ω represents the pipe tortuosity, δ represents the pipe smoothness, T represents the water temperature, L represents the pipe length, and d represents the pipe inner diameter.

[0032] In some optional embodiments, after determining the operating parameters of the circulating water pump based on the pump flow rate and head, the method further includes:

[0033] Obtain the pipeline pressure between the packaging substrate production module and the circulating water pump;

[0034] If the pipeline pressure is greater than the preset pressure, adjust the operating parameters to make the pipeline pressure equal to the preset pressure.

[0035] When the pipeline pressure is less than the preset pressure, obtain pipeline leakage detection information between the packaging substrate production module and the circulating water pump;

[0036] When the pipeline leak detection information indicates that a pipeline leak has occurred, a leak alarm is generated, which includes the leak location, the extent of the leak, and the urgency of the leak.

[0037] If the pipeline leak detection information indicates that no leak has occurred in the pipeline, the operating parameters are adjusted so that the pipeline pressure is equal to the preset pressure.

[0038] In some optional embodiments, the method further includes:

[0039] The first cleaning water pressure and first water supply of the first process unit, the second cleaning water pressure and second water supply of the second process unit, and the third cleaning water pressure and third water supply of the third process unit are obtained.

[0040] The first power of the first-stage water pump is determined based on the first cleaning water pressure, so that the first-stage water pump provides the first filtered water with the first cleaning water pressure to the first process unit through the first pipeline.

[0041] The first opening degree of the first multi-way valve is determined according to the first water supply volume, so that the first primary water pump provides the first filtered water of the first water supply volume to the first process unit through the first pipeline;

[0042] The second power of the second-stage water pump is determined based on the second cleaning water pressure, so that the second-stage water pump provides the second filtered water with the second cleaning water pressure to the second process unit through the second pipeline;

[0043] The second opening degree of the second multi-way valve is determined according to the second water supply volume, so that the second stage water pump provides the second filtered water of the second water supply volume to the second process unit through the second pipeline;

[0044] The third power of the third stage water pump is determined based on the third cleaning water pressure, so that the third stage water pump provides the third filtered water at the third cleaning water pressure to the third process unit through the third pipeline and / or the third main pipeline;

[0045] The third opening degree of the third multi-way valve is determined based on the third water supply volume, so that the third stage water pump provides the third filtered water of the third water supply volume to the third process unit through the third pipeline and / or the third main pipeline.

[0046] In some optional embodiments, the recycling module includes a water collection tank, a double-layer screen, and a suction well. The process of delivering cooling water to the recycling module to obtain recycled water includes:

[0047] Cooling water is transported to the water collection tank so that the water collection tank can settle the cooling water to obtain the first intermediate water;

[0048] The first intermediate water is conveyed to the double-layer screen so that the double-layer screen filters out impurities to obtain the second intermediate water;

[0049] The second intermediate water is transported to the suction well for storage to obtain recycled water.

[0050] Secondly, embodiments of the present invention provide a water circulation system for the production of packaging substrates, comprising:

[0051] The first module is used to obtain water usage information of the packaging substrate production module, wherein the water usage information represents the real-time water usage requirements of one or more processes.

[0052] The second module is used to determine the pump flow rate of the circulating water pump based on the water usage information.

[0053] The third module is used to obtain pipeline information between the packaging substrate production module and the circulating water pump.

[0054] The fourth module is used to determine the head of the circulating water pump based on the pipeline information;

[0055] The fifth module is used to determine the operating parameters of the circulating water pump based on the pump water flow rate and head, so that the circulating water pump can transport the recycled water from the recycling module to the circulating water filtration unit for multi-stage filtration, and transport the recycled water with different filtration levels to several process units of the packaging substrate production module, with different process units indicating different processes.

[0056] The sixth module is used to control the packaging substrate production module to recycle the used water from several process units to the cooling module for cooling to obtain cooling water;

[0057] The seventh module is used to control the cooling module to deliver cooling water to the recycling module to obtain recycled water.

[0058] Thirdly, embodiments of the present invention provide a controller, including: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the above-described method.

[0059] Fourthly, embodiments of the present invention provide a computer storage medium storing computer-executable instructions for performing the above-described methods.

[0060] Implementing the embodiments of the present invention has the following beneficial effects: The embodiments of the present invention provide a water circulation method for packaging substrate production, comprising: acquiring water usage information of the packaging substrate production module, the water usage information representing the real-time water demand of one or more processes; determining the pump flow rate of the circulating water pump based on the water usage information; acquiring pipeline information between the packaging substrate production module and the circulating water pump; determining the head of the circulating water pump based on the pipeline information; determining the operating parameters of the circulating water pump based on the pump flow rate and head, so that the circulating water pump delivers the recycled water from the recycling module to the circulating water filtration unit for multi-stage filtration, and delivers the recycled water with different filtration levels to several process units of the packaging substrate production module, the different process units indicating different processes; controlling the packaging substrate production module to recover the used water after the use of several process units to the cooling module for cooling to obtain cooling water; controlling the cooling module to deliver the cooling water to the recycling module to obtain recycled water. By using water usage information from the packaging substrate production module, the filtered circulating water is delivered to multiple water-using process units within the packaging substrate production module to meet the water requirements of these process units. After use, the water is transported to a cooling tower for cooling and stored in a recycling module for subsequent extraction by the circulating water pump. This improves the utilization rate of water resources and avoids environmental pollution caused by direct wastewater discharge. Attached Figure Description

[0061] Figure 1 This is a flowchart of the steps of a water circulation method for producing a packaging substrate according to an embodiment of the present invention;

[0062] Figure 2 This is a structural block diagram of the water circulation system provided in an embodiment of the present invention;

[0063] Figure 3 This is a structural block diagram of a water circulation system for producing a packaging substrate provided in an embodiment of the present invention. Detailed Implementation

[0064] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0065] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0066] In the description of this invention, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0067] In the description of this invention, unless otherwise explicitly defined, terms such as "setting," "installing," and "connecting" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0068] This invention provides a water circulation method, system, and controller for packaging substrate production. The water circulation method includes: acquiring water usage information of the packaging substrate production module, where the water usage information represents the real-time water demand of one or more processes; determining the pump flow rate of the circulating water pump based on the water usage information; acquiring pipeline information between the packaging substrate production module and the circulating water pump; determining the head of the circulating water pump based on the pipeline information; determining the operating parameters of the circulating water pump based on the pump flow rate and head, so that the circulating water pump delivers the recycled water from the recovery module to the circulating water filtration unit for multi-stage filtration, and delivers recycled water with different filtration levels to several process units of the packaging substrate production module, where different process units indicate different processes; controlling the packaging substrate production module to recover the used water from the several process units to the cooling module for cooling to obtain cooling water; and controlling the cooling module to deliver the cooling water to the recovery module to obtain recycled water. By using water usage information from the packaging substrate production module, the filtered circulating water is delivered to multiple water-using process units within the packaging substrate production module to meet the water requirements of these process units. After use, the water is transported to a cooling tower for cooling and stored in a recycling module for subsequent extraction by the circulating water pump. This improves the utilization rate of water resources and avoids environmental pollution caused by direct wastewater discharge.

[0069] The packaging method of the packaging substrate according to the embodiments of the present invention will be further described below.

[0070] Reference Figure 1, Figure 1 This is a flowchart illustrating a water circulation method for producing a packaging substrate, as provided in an embodiment of the present invention. This water circulation method for producing a packaging substrate is applied to... Figure 2 The water circulation system shown, and the water circulation method for producing the packaged substrate, include, but are not limited to, the following steps:

[0071] S100, Obtain water usage information of the packaging substrate production module, wherein the water usage information represents the real-time water usage requirements of one or more processes;

[0072] S200, determine the pump flow rate of the circulating water pump based on the water usage information;

[0073] S300, Obtain pipeline information between the packaging substrate production module and the circulating water pump;

[0074] S400, determine the head of the circulating water pump based on the pipeline information;

[0075] S500, the operating parameters of the circulating water pump are determined according to the pump water flow rate and head, so that the circulating water pump delivers the recycled water from the recycling module to the circulating water filtration unit for multi-stage filtration, and delivers the recycled water with different filtration levels to several process units of the packaging substrate production module, with different process units indicating different processes.

[0076] S600, control the packaging substrate production module to recycle the used water from several process units to the cooling module for cooling to obtain cooling water;

[0077] S700, the cooling module is controlled to deliver cooling water to the recycling module to obtain recycled water.

[0078] Specifically, to accurately meet the water requirements of each process in the packaging substrate production module, it is first necessary to obtain water usage information. This information reflects the real-time water demand of one or more processes, as different processes at different production stages, such as cleaning, etching, and electroplating, have varying water requirements that dynamically change with production progress and product specifications. By installing various sensors (such as flow sensors and water level sensors) at the water pipes or equipment of the corresponding processes, this water usage data can be collected in real time and transmitted to the control system. The control system adjusts the water output and / or water output speed of the process unit based on the water usage data and preset water requirements. For example, in the cleaning process after photolithography, a large flow of water may be needed to quickly rinse away residual photoresist on the substrate surface; while in some fine etching processes, to ensure etching accuracy, the water usage is relatively small and the stability of the water flow is more critical. These different real-time needs can be reflected in the acquired water usage information. Based on the acquired water usage information, the total real-time water demand of each process, as well as potential water losses (such as pipe leaks and evaporation), is used to determine the pump flow rate that the circulating water pump should provide. For example, if the cleaning process requires 5m³ / h of water in real time… 3 The water flow rate is / h, and the etching process requires 2m. 3 / h, taking into account a certain margin (assuming a 10% loss margin), then the pumping flow rate of the circulating water pump should be set to at least (5+2)×(1+10%)=7.7m 3 / h, to ensure that there is enough water supply to each process to meet production needs.

[0079] Piping information encompasses numerous aspects, such as the pipe's material, inner diameter, length, surface roughness, and the quantity and type of fittings like elbows and valves. These factors all influence the resistance to water flow within the pipes, consequently affecting the head required by the circulating water pump. Accurate piping information can be obtained through detailed mapping and recording of the entire piping system from the packaging substrate production module to the circulating water pump, or by utilizing automated piping inspection equipment (such as pipe endoscopes) to examine the internal structure. Smaller pipe inner diameters increase water flow velocity but also increase flow resistance; longer pipes require more work to overcome friction during flow, resulting in greater energy loss; and fittings like elbows and valves alter the flow direction, causing localized resistance losses—all of which must be considered in head calculations.

[0080] Based on the previously determined key indicators of pump flow rate and head, the final operating parameters of the circulating water pump are determined. This is akin to setting specific operating "instructions" for the pump, enabling it to operate efficiently and stably while meeting production water needs. These operating parameters include pump speed, motor power, and impeller angle. By precisely matching appropriate operating parameters, the pump delivers the recycled water from the recovery module to the circulating water filtration unit for multi-stage filtration as required, ensuring that the recycled water with different filtration levels is accurately delivered to the corresponding process units in the packaging substrate production module. For example, if the required pump flow rate is determined to be 10 m³ / s... 3 With a flow rate of / h and a head of 30 meters, the corresponding combination of parameters such as speed and power needs to be found in the pump's performance curve chart, or calculated using the appropriate formula. The pump's operating parameters are then adjusted to this optimal matching state, ensuring that the pump's output water flow and pressure meet the requirements. The circulating water pump operates according to the set parameters, first extracting and transporting the recycled water collected by the recovery module to the circulating water filtration unit. In the circulating water filtration unit, through multi-stage filtration (such as mechanical filtration to remove large particles, activated carbon filtration to remove organic matter and odors, and precision filtration to remove fine particles), the quality of the recycled water is gradually improved to meet the different water quality requirements of different process units. Then, the recycled water treated to different degrees of filtration is precisely transported to the corresponding process unit (specifically in conjunction with different secondary water pumps). For example, ultrapure water that has undergone high-precision filtration is transported to the electron beam evaporation coating process, which has extremely high water quality requirements, while water that has only undergone preliminary filtration is supplied to the substrate pre-cleaning process, which has slightly lower water quality requirements, achieving rational allocation and efficient utilization of water resources.

[0081] After water is used in each process unit of the packaging substrate production module, this used water, carrying heat and possibly small amounts of impurities, is recycled to the cooling module through specially designed drainage pipes and a recycling system, under the precise scheduling of the control system. This recycling process effectively avoids water waste and is a key link in the entire water recycling system, laying the foundation for subsequent reuse. For example, water used in the electroplating process is at a high temperature and contains a small amount of residual electroplating solution. Recycling it to the cooling module not only prevents the direct discharge of this polluting water from causing environmental pollution, but also allows it to participate in the production water cycle after cooling treatment.

[0082] Cooling modules utilize heat exchange principles, including air-cooled, water-cooled, or a combination of both. For example, a water-cooled module exchanges heat between hot water and low-temperature cooling water (or a cooling medium) in a heat exchanger, lowering the temperature of the hot water to meet the requirements of a circulating water system. This cooling water is then transported to a recycling module, where it undergoes simple treatments such as sedimentation and filtration, becoming recycled water that can be pumped back into the system. This process repeats, achieving water resource recycling throughout the entire packaging substrate production process, reducing production costs, improving resource utilization efficiency, and meeting environmental protection requirements.

[0083] In some optional embodiments, determining the head of the circulating water pump based on the pipeline information includes: determining the pipeline size information, pipeline curvature, and pipeline smoothness between the packaging substrate production module and the circulating water pump based on the pipeline information; determining the pipeline resistance loss coefficient based on the pipeline size information, the pipeline curvature, and the pipeline smoothness; and determining the head based on the pipeline resistance loss coefficient.

[0084] Specifically, using an angle measuring instrument or total station, the bending angle of the pipeline at each bend is measured. For irregularly curved pipelines, segmented measurements are required, and the results are accumulated. Simultaneously, the radius of the pipeline bend is measured, as the radius affects the smoothness of water flow and the magnitude of resistance. The surface condition of the pipeline's inner wall is inspected for rust, scale, uneven welds, etc., considering the influence of the pipeline material on smoothness; different materials have different initial smoothness and variations over time. For example, stainless steel pipelines are relatively smooth, while cast iron pipelines may rust easily, leading to a decrease in smoothness. Therefore, a comprehensive analysis is needed to obtain the corresponding pipeline smoothness and curvature. The inner diameter and length from the pipeline dimensions, along with the measured smoothness and curvature parameters, are substituted into the corresponding calculation formulas to calculate the friction loss coefficient along the pipeline.

[0085] Based on the total resistance loss coefficient and parameters such as water flow rate and density, the pressure head corresponding to the pipeline resistance loss is calculated using a formula. For example, according to the formula... (where h) f The pressure head due to friction loss is calculated as follows: K is the friction loss coefficient (i.e., the pipe resistance loss coefficient), L is the pipe length, d is the pipe inner diameter, v is the water flow velocity, and G is the acceleration due to gravity. The height difference between the packaging substrate production module and the circulating water pump is measured and calculated using the formula h. z =ΔZ (where h) zThe pressure head generated by the height difference is calculated as follows: Z represents the height difference, and Δ represents the pressure head per unit height difference. Considering the water pressure requirements of each process in the packaging substrate production module, the residual pressure head required at the end of the pipe is determined. Head calculation: Add the above three pressure heads together (i.e., the residual pressure head required at the end of the pipe + h). f +h z ), thus obtaining the head required by the circulating water pump.

[0086] In some optional embodiments, determining the pipe resistance loss coefficient based on the pipe size information, the pipe curvature, and the pipe smoothness includes the following formula:

[0087]

[0088] Wherein, K represents the pipe resistance loss coefficient, a, b, and c represent constant coefficients of different values, ν represents the water flow velocity in the pipe, γ represents the water viscosity, ρ represents the water density, ω represents the pipe tortuosity, δ represents the pipe smoothness, T represents the water temperature, L represents the pipe length, and d represents the pipe inner diameter.

[0089] Specifically, the constant coefficients a, b, and c are empirical values ​​derived from extensive experimental and theoretical research. They comprehensively consider various complex factors affecting fluid flow within the pipe, such as the pipe material and the fluid flow state. Water flow velocity is one of the important factors influencing pipe resistance loss. According to fluid mechanics principles, as water flow velocity increases, the fluid's kinetic energy increases, and friction and collision with the pipe wall intensify, leading to increased resistance loss. In laminar flow, resistance loss is proportional to the first power of the water flow velocity; in turbulent flow, resistance loss is proportional to the square or higher powers of the water flow velocity. Water viscosity reflects the magnitude of internal friction between water molecules; the higher the viscosity, the stronger the mutual attraction between water molecules, and the greater the resistance when the fluid flows within the pipe. The greater the pipe curvature, the more drastic the change in water flow direction within the pipe, resulting in greater local resistance loss. This is because vortices and secondary flows form at bends, increasing the turbulence and energy loss of the water flow. Curvature is positively correlated with the pipe resistance loss coefficient; that is, the greater the curvature, the larger the K value. The smoothness of a pipe directly affects the frictional resistance between the water flow and the pipe wall. The smoother the inner wall of the pipe, the less friction there is, and the lower the resistance loss coefficient. Conversely, a rough inner wall increases frictional resistance, leading to a higher resistance loss coefficient. As water temperature decreases, its activity decreases, and the resistance loss coefficient increases accordingly. The longer the pipe, the longer the path the water travels within it, resulting in more friction and collisions with the pipe wall; therefore, frictional resistance loss is directly proportional to pipe length. The inner diameter of the pipe significantly affects the water flow velocity and flow state. According to the definition of the Reynolds number, it is directly proportional to the pipe's inner diameter and the water flow velocity, and inversely proportional to the water's viscosity. When the inner diameter is small, the water flow velocity is relatively high, easily leading to turbulence and an increased resistance loss coefficient.

[0090] In some optional embodiments, after determining the operating parameters of the circulating water pump based on the pump flow rate and head, the method further includes: acquiring the pipeline pressure between the packaging substrate production module and the circulating water pump; adjusting the operating parameters so that the pipeline pressure equals the preset pressure when the pipeline pressure is greater than a preset pressure; acquiring pipeline leakage detection information between the packaging substrate production module and the circulating water pump when the pipeline leakage detection information indicates that a pipeline leak has occurred; generating leakage alarm information, the leakage alarm information including the leakage location, leakage degree, and leakage urgency, when the pipeline leakage detection information indicates that no pipeline leak has occurred; and adjusting the operating parameters so that the pipeline pressure equals the preset pressure when the pipeline leakage detection information indicates that no pipeline leak has occurred.

[0091] Specifically, by installing pressure sensors at key locations in the pipeline between the packaging substrate production module and the circulating water pump, real-time pressure readings can be obtained. This pressure data reflects the current operating pressure of the circulating water system within this range. Comparison with a preset pressure: The preset pressure is a standard pressure value determined based on factors such as packaging substrate production process requirements, pipeline system design parameters, and the normal operating range of the circulating water pump. Comparing the real-time pipeline pressure with this preset pressure allows for timely detection of deviations from the normal range, thus identifying any abnormalities in the system and enabling appropriate countermeasures to ensure stable system operation.

[0092] When the pipeline pressure exceeds the preset pressure, it means the water pressure inside the pipeline is too high. This can lead to a series of problems, such as increasing the risk of pipeline rupture, damaging seals at pipeline connections, and even affecting the normal operation of pressure-sensitive processes in the packaging substrate production module. Therefore, it is necessary to adjust the operating parameters of the circulating water pump in a timely manner to reduce the pipeline pressure and restore it to the preset pressure level, ensuring the safe and stable operation of the system. Adjusting the operating parameters can be achieved by reducing the circulating water pump speed, decreasing the pump flow rate, or adjusting the opening of the pump outlet valve. For example, reducing the pump speed reduces the pump's output power, thereby reducing the water flow rate and pressure delivered to the pipeline; closing the outlet valve opening increases the resistance of the pipeline system, reducing the pressure inside the pipeline, ultimately achieving the goal of equalizing the pipeline pressure with the preset pressure.

[0093] When the pipeline pressure is lower than the preset pressure, it could be due to a leak in the pipeline, causing some water loss and thus a pressure drop; it could also be caused by other factors, such as a malfunctioning circulating water pump resulting in insufficient output pressure, or a valve in the pipeline not being fully open, causing abnormally increased water flow resistance. Therefore, it is necessary to obtain pipeline leak detection information to accurately determine whether a leak exists so that appropriate handling measures can be taken.

[0094] Pipeline leak detection methods and information: Pipeline leak detection methods include acoustic detection (using the sound signal generated during a leak), pressure wave detection (judging based on changes in pressure waves caused by a leak), and flow difference detection (comparing the flow difference between the pipeline inlet and outlet), etc. Specific detection methods are not limited here. Pipeline leak detection information includes whether a leak exists, and if so, detailed information such as the leak location, extent, and urgency. Based on the pipeline leak detection information, corresponding intelligent decision-making information is generated. This intelligent decision-making information includes the leak location, leak type, urgency, and how to handle it, and generates corresponding handling manuals and precautions, which are then sent to the appropriate personnel for processing. For example, the leak location helps maintenance personnel quickly pinpoint the fault, while the leak extent and urgency allow relevant personnel to assess the severity of the problem and rationally arrange maintenance sequences and resource allocation.

[0095] Adjustment measures when no leak has occurred: If the pipeline leak detection information indicates that there is no leak in the pipeline, then the insufficient pipeline pressure is likely caused by other reasons. It is necessary to adjust the operating parameters of the circulating water pump to increase the pipeline pressure. The adjustment method is the opposite of that for excessive pressure. You can appropriately increase the pump speed, increase the pump flow rate, or check and adjust the opening of the valves on the pipeline to make the pipeline pressure rise back to the preset pressure, ensuring the normal water supply of the system and the water demand of the packaging substrate production module.

[0096] In some optional embodiments, the circulating water filtration unit includes a primary filtration device, a secondary filtration device, and a tertiary filtration device. A primary water pump and a first multi-way valve are installed on a first main pipe between the primary and secondary filtration devices. The first multi-way valve is connected to a first process unit of the packaging substrate production module through the first pipe. A secondary water pump and a second multi-way valve are installed on a second main pipe between the secondary and tertiary filtration devices. The second multi-way valve is connected to a second process unit of the packaging substrate production module through the second pipe. A tertiary water pump and a third multi-way valve are installed on a third main pipe between the tertiary filtration device and the packaging substrate production module. The third multi-way valve is connected to a third process unit of the packaging substrate production module through the third main pipe and / or the third pipe. The circulating water filtration unit performs multi-stage filtration. The process involves filtering the recycled water and conveying it to several process units of the packaging substrate production module, including: mechanically filtering the recycled water through the primary filtration device to obtain first filtered water; conveying the first filtered water to the first process unit and / or the primary filtration device through the primary water pump, the first multi-way valve, the first pipeline, and the first main pipeline; filtering the first filtered water with activated carbon through the secondary filtration device to obtain second filtered water; conveying the second filtered water to the second process unit and / or the tertiary filtration device through the secondary water pump, the second multi-way valve, the second pipeline, and the second main pipeline; finely filtering the second filtered water through the tertiary filtration device to obtain third filtered water; and conveying the third filtered water to the third process unit through the tertiary water pump, the third multi-way valve, the third pipeline, and the third main pipeline.

[0097] Specifically, the primary filtration unit, as the starting point of the entire filtration process, mainly performs mechanical filtration. Using filter media such as quartz sand or anthracite, it intercepts and screens large particles such as suspended particles, silt, and rust in the recycled water through their pores, removing these visible or relatively large impurities. This initially purifies the recycled water, producing the first filtered water. It effectively protects subsequent filtration units and piping systems, preventing blockages or wear caused by large particles.

[0098] Primary water pump: Located on the first main pipeline between the primary and secondary filtration devices, its function is to provide power for the transportation of the first filtered water, overcome the resistance of water flow in the pipeline and the influence of factors such as different height differences, ensure that the first filtered water can flow smoothly in the set direction, and ensure the stable operation of the entire filtration and transportation system.

[0099] First multi-way valve: This valve is connected to the first process unit of the packaging substrate production module through the first pipeline, and is also connected to the first main pipeline. The first multi-way valve can flexibly switch the water flow direction according to the actual water demand and system control requirements, so as to deliver the first filtered water to the first process unit for use through the first pipeline, and / or let the first filtered water continue to flow to the subsequent secondary filtration device for further filtration through the first main pipeline, etc. The corresponding filtration is set according to the actual water demand of the process unit.

[0100] Secondary filtration unit: Activated carbon filtration is applied to the first-stage filtered water. Utilizing the well-developed porous structure and large specific surface area of ​​activated carbon, it adsorbs impurities such as organic matter, residual chlorine, odors, and color from the water, further improving water quality and producing the second-stage filtered water. After this step, the purity and sensory indicators (such as color and odor) of the water are significantly improved, better meeting the requirements of some processes with high water quality standards.

[0101] Secondary water pump: Located on the second main pipeline between the secondary and tertiary filtration devices, it provides power support for the flow of the second filtered water, ensuring that the second filtered water can be stably transported in the second main pipeline and / or the secondary pipeline. Whether it flows through the second main pipeline to the subsequent tertiary filtration device for further filtration, or is transported through the secondary pipeline to the second process unit of the packaging substrate production module for use, it can achieve this by relying on the power it provides.

[0102] The second multi-way valve is connected to the second process unit via a second pipeline and is also connected to the second main pipeline. It also has the function of flexibly adjusting the water flow direction. According to the actual production situation, by controlling the second multi-way valve to connect different pipelines, the second filtered water is sent to the second process unit through the second pipeline to meet the current production water demand, and / or the second filtered water continues to flow to the third-stage filtration device through the second main pipeline for the next step of precision filtration.

[0103] The three-stage filtration system performs precision filtration by using high-precision filter media (such as microporous membranes and ultrafiltration membranes) to further treat the second-stage filtered water. Through sieving, adsorption, and interception, it removes tiny particles, bacteria, viruses, colloids, macromolecular organic matter, and other fine impurities from the water, resulting in high-quality third-stage filtered water that meets the usage requirements of process units with stringent water quality requirements.

[0104] The third-stage water pump is installed on the third main pipeline between the three-stage filtration device and the packaging substrate production module. It provides sufficient power for the final delivery of the third-stage filtered water, overcomes pipeline resistance and possible height differences, and ensures that the third-stage filtered water can be accurately delivered to the corresponding process unit, thus guaranteeing the water supply of the production module.

[0105] The third multi-way valve connects to the third process unit via the third main pipe and / or the third third pipe. Based on the specific water usage arrangement, process requirements, and overall system operating status, it rationally switches the water flow path to accurately deliver the third filtered water to the third process unit, enabling it to participate in the packaging substrate production process.

[0106] Specific filtration process: The recycled water first enters the primary filtration device for mechanical filtration. Under the action of the filter media, large particles of impurities are trapped, resulting in first-stage filtered water. Subsequently, powered by the primary water pump, the first-stage filtered water, under the flow direction control of the first multi-way valve, can be transported to the first process unit through the first pipeline and the first main pipeline for use by the first process unit, meeting its water requirements after preliminary water purification. The first process unit includes one or more processes, which are not specifically limited. At the same time, as needed, the first-stage filtered water can also continue to flow along the first main pipeline to the secondary filtration device, entering the next stage of filtration to further improve water quality. The first filtered water flowing into the secondary filtration unit undergoes activated carbon filtration, where organic matter, residual chlorine, and other impurities are adsorbed by the activated carbon, producing the second filtered water. Next, a secondary pump drives the second filtered water to flow through a pipeline. A second multi-way valve switches the flow direction according to actual conditions, allowing the second filtered water to be transported through a second pipeline to a second process unit. This provides the second process unit with better water quality that meets its process requirements. The second process unit includes one or more processes, without specific limitations. Alternatively, the second filtered water can flow along the second main pipeline to a tertiary filtration unit for more precise filtration. The second filtered water, after undergoing precision filtration, removes various fine impurities and forms the third filtered water. Finally, driven by the third-stage water pump, the third multi-way valve, according to the set flow direction, accurately delivers the third filtered water to the third process unit through the third main pipe and / or the third pipe. This ensures that the processes in the third process unit can use high-quality filtered water that meets its high standards, guaranteeing the smooth production of the packaging substrate and the stable and reliable quality of the product. The third process unit includes one or more of the first processes, without any specific limitation.

[0107] In some optional embodiments, the method further includes: acquiring a first cleaning water pressure and a first water supply of the first process unit, a second cleaning water pressure and a second water supply of the second process unit, and a third cleaning water pressure and a third water supply of the third process unit; determining a first power of the first stage water pump based on the first cleaning water pressure, so that the first stage water pump provides the first filtered water of the first cleaning water pressure to the first process unit through the first pipeline; determining a first opening degree of the first multi-way valve based on the first water supply, so that the first stage water pump provides the first filtered water of the first water supply to the first process unit through the first pipeline; and determining a second power of the second stage water pump based on the second cleaning water pressure, so that the second stage water pump... The second process unit is supplied with second filtered water at the second cleaning water pressure through the second pipeline; the second opening degree of the second multi-way valve is determined according to the second water supply volume, so that the second-stage water pump supplies the second filtered water at the second water supply volume to the second process unit through the second pipeline; the third power of the third-stage water pump is determined according to the third cleaning water pressure, so that the third-stage water pump supplies the third filtered water at the third cleaning water pressure to the third process unit through the third pipeline and / or the third main pipeline; the third opening degree of the third multi-way valve is determined according to the third water supply volume, so that the third-stage water pump supplies the third filtered water at the third water supply volume to the third process unit through the third pipeline and / or the third main pipeline.

[0108] In some optional embodiments, the water circulation system further includes a chemical supply module, which is connected to the primary filtration device, the secondary filtration device, and the tertiary filtration device, respectively. The method further includes: acquiring first pH requirement information of the first process unit, second pH requirement information of the second process unit, and third pH requirement information of the first process unit; determining the first chemical type and first chemical quantity supplied by the chemical supply module to the primary filtration device based on the first pH requirement information; determining the second chemical type and second chemical quantity supplied by the chemical supply module to the secondary filtration device based on the first pH requirement information and the second pH requirement information; and determining the third chemical type and third chemical quantity supplied by the chemical supply module to the tertiary filtration device based on the first pH requirement information, the second pH requirement information, and the third pH requirement information.

[0109] Specifically, the chemical supply module plays a crucial regulatory role in the entire water circulation system. By delivering appropriate chemicals to different levels of filtration devices, it can precisely control the pH and other chemical properties of the water after treatment by each filtration device. This ensures that the water meets the specific chemical requirements of each process unit in the packaging substrate production module, guaranteeing smooth production processes and stable product quality. Different packaging substrate production processes have different pH requirements. For the first process unit, obtaining its pH requirement information is essential to clarifying the pH range of the water needed for normal operation and optimal production results. For example, some cleaning processes may require slightly acidic water to better remove oxides or impurities from the substrate surface, while other processes may require near-neutral water. Similarly, the second and third process units also have their own pH requirements tailored to their specific process characteristics. The second process unit involves specific chemical treatments and requires water with a specific pH level to ensure the smooth progress of the chemical reaction or to avoid adverse effects on the substrate material. Similarly, the third process unit has strict requirements for the pH level of the water based on its specific role in the packaging substrate production process. Obtaining this information ensures that the chemical properties of the water used in each stage of the entire production process meet the process standards.

[0110] Determine the type of the first chemical solution: Based on the pH requirement of the first process unit, determine the type of the first chemical solution supplied by the chemical supply module to the primary filtration unit. If the first process unit requires an acidic environment, and the water treated by the primary filtration unit is neutral or alkaline, then a suitable acidic chemical solution, such as dilute hydrochloric acid or sulfuric acid solution, needs to be selected (the specific selection should comprehensively consider factors such as safety and impact on subsequent processes); conversely, if an alkaline environment is required, then a corresponding alkaline chemical solution, such as sodium hydroxide solution, should be selected.

[0111] Determining the initial chemical dosage: The dosage must consider both the precise pH requirements of the first-stage process unit and the processing capacity of the primary filtration unit. A comprehensive calculation is performed based on the required pH range of the first-stage process unit, the inlet flow rate of the primary filtration unit, and the pH concentration of the selected chemical to accurately determine the initial chemical dosage. This ensures that the water treated by the primary filtration unit after the chemical is injected meets the pH requirements of the first-stage process unit. For example, if the inlet flow rate of the primary filtration unit is large and the first-stage process unit requires a strong acidity, the dosage of the acidic chemical needs to be increased accordingly. However, excessive dosage must be avoided to prevent the pH from exceeding the required range, which could affect subsequent processes or cause equipment corrosion.

[0112] Determining the type of the second chemical solution: When considering the type of the second chemical solution, it is necessary to consider both the first pH requirement information of the first process unit and the second pH requirement information of the second process unit. This is because the primary filtration unit sets the pH of the first filtered water based on the first pH requirement information, and the secondary filtration unit filters the first filtered water to obtain the second filtered water. By combining the first and second pH requirement information, the pH difference between the first and second filtered water can be determined, thus determining the type of second chemical solution to be added to the secondary filtration unit. For example, if the first process unit requires weakly acidic water, while the second process unit requires weakly alkaline water, then the pH difference between the first and second filtered water is determined to be greater than zero, thus determining that the second chemical solution to be added is an alkaline chemical solution. However, the strength and type of the alkaline chemical solution selected must be precisely determined based on the specific requirements of the preceding and following processes to ensure that the overall water quality meets the requirements.

[0113] Determining the amount of the second chemical solution: Similar to determining the amount of the first chemical solution, calculations must be performed considering multiple factors. These include the inlet flow rate of the secondary filtration unit (the inlet water is the first filtered water after primary filtration), the pH requirements of the preceding and following process units, and the concentration of the selected second chemical solution. Through scientific chemical calculations and practical experience, the amount of the second chemical solution is accurately determined so that the pH of the water output from the secondary filtration unit is suitable for the needs of the second process unit.

[0114] Determining the type of the third pH solution: The type of the third pH solution is determined based on the combined information from the first, second, and third pH requirements. Since the filtered water from the three-stage filtration system will be directly supplied to the third process unit, and to ensure the overall pH balance and compatibility of the water throughout the production process, a comprehensive assessment of the differences and interrelationships in the requirements of the three process units is necessary. For example, if the first and second process units have relatively lenient pH requirements, but the third process unit has extremely strict pH requirements and must be neutral, then a suitable pH adjusting solution must be selected in the three-stage filtration system to precisely adjust the pH of the second filtered water (after the first two filtration stages and the pH adjustment) to a neutral state that meets the requirements of the third process unit.

[0115] Determine the amount of the third chemical solution: Based on parameters such as the inlet flow rate of the three-stage filtration device (i.e., the water flow rate after the second-stage filtration), the specific pH requirements of the three process units, and the pH concentration of the selected chemical solution, a rigorous calculation is performed to determine the amount of the third chemical solution. This ensures that the pH of the water finally delivered to the third process unit fully meets its production process requirements, and avoids adverse effects on the quality of the packaging substrate due to unsuitable pH.

[0116] In some optional embodiments, the method further includes: acquiring a first cleaning water pressure and a first water supply of the first process unit, a second cleaning water pressure and a second water supply of the second process unit, and a third cleaning water pressure and a third water supply of the third process unit; determining a first power of the first stage water pump based on the first cleaning water pressure, so that the first stage water pump provides the first filtered water of the first cleaning water pressure to the first process unit through the first pipeline; determining a first opening degree of the first multi-way valve based on the first water supply, so that the first stage water pump provides the first filtered water of the first water supply to the first process unit through the first pipeline; and determining a second power of the second stage water pump based on the second cleaning water pressure, so that the second stage water pump... The second process unit is supplied with second filtered water at the second cleaning water pressure through the second pipeline; the second opening degree of the second multi-way valve is determined according to the second water supply volume, so that the second-stage water pump supplies the second filtered water at the second water supply volume to the second process unit through the second pipeline; the third power of the third-stage water pump is determined according to the third cleaning water pressure, so that the third-stage water pump supplies the third filtered water at the third cleaning water pressure to the third process unit through the third pipeline and / or the third main pipeline; the third opening degree of the third multi-way valve is determined according to the third water supply volume, so that the third-stage water pump supplies the third filtered water at the third water supply volume to the third process unit through the third pipeline and / or the third main pipeline.

[0117] Specifically, different packaging substrate production processes have different requirements in the cleaning stage, and the cleaning water pressure directly affects the cleaning effect. For example, some process units with stubborn stains on the surface or requiring the removal of tiny particles may require higher cleaning water pressure to ensure the impact force of the water flow, thereby more effectively washing away impurities; while some processes that are more sensitive to the substrate surface and easily damaged require lower cleaning water pressure. Obtaining the first cleaning water pressure of the first process unit, the second cleaning water pressure of the second process unit, and the third cleaning water pressure of the third process unit is to determine the optimal water pressure conditions for each process unit to achieve the ideal cleaning effect, which serves as the basis for adjusting the water pump power and other operations. The water supply is also related to the normal operation of the process and the cleaning quality; a sufficient water supply ensures that the entire cleaning process is continuous and thorough, avoiding incomplete cleaning due to insufficient water. Different processes have different water supply requirements due to differences in substrate size, cleaning area, and cleaning methods. Accurately obtaining the first, second, and third water supply quantities helps to precisely allocate water resources and ensure that each process unit receives the water quantity that meets its own cleaning needs.

[0118] The power of a water pump is closely related to the water pressure it can provide. According to fluid mechanics principles, a water pump performs work on water through impeller rotation, giving it energy and generating pressure to transport water through pipelines and meet the required pressure. For the primary pump, to provide the first filtered water that meets the first cleaning water pressure to the first process unit through the first pipeline, the pump's power needs to be determined based on the specific value of the first cleaning water pressure. Higher cleaning water pressure requirements mean that the pump needs to output more energy, corresponding to higher power. The required first power of the primary pump can be accurately calculated using the pump's performance curve (which reflects the relationship between pump power, flow rate, head, and pressure) and relevant hydraulic calculation formulas (such as the conversion formula between head and power), combined with the target value of the first cleaning water pressure and the resistance characteristics of the pipeline system. Then, the pump's power is adjusted using a speed control device (such as a frequency converter) to ensure that the actual water pressure output by the pump meets the first cleaning water pressure requirement, ensuring that the first process unit receives cleaning water at a suitable pressure.

[0119] Similarly, the operation proceeds as follows: Just as the initial power of the first-stage pump is determined, the second power of the second-stage pump is determined based on the second cleaning water pressure of the second process unit, and the third power of the third-stage pump is determined based on the third cleaning water pressure of the third process unit. Based on the specific cleaning water pressure requirements of each process unit, the pump power is calculated and adjusted by analyzing pump performance, pipeline conditions, and relevant hydraulic principles. This ensures that the second-stage pump can provide the second-stage filtered water to the second process unit that meets the second cleaning water pressure requirement, and that the third-stage pump can provide the third-stage filtered water to the third process unit that meets the third cleaning water pressure requirement. Each process unit can perform cleaning operations under suitable water pressure conditions, ensuring cleaning effectiveness and production quality.

[0120] The opening degree of a multi-way valve directly affects the water flow rate through it. In a pipeline system, when a water pump provides power to flow water, the multi-way valve acts as an adjustable "gate," controlling the cross-sectional area of ​​the water flow and thus altering the flow rate by changing its opening degree. For the first multi-way valve, to ensure the first-stage water pump provides the first batch of filtered water to the first process unit through the first pipeline, the opening degree of the first multi-way valve needs to be precisely determined based on the first batch of water supply. A larger opening degree results in a relatively larger water flow rate; a smaller opening degree results in a smaller water flow rate. The first opening degree of the first multi-way valve can be determined by calculation or empirical judgment based on the valve's flow characteristic curve (different types of valves have their corresponding flow rate vs. opening degree curves), combined with the target value of the first batch of water supply and other parameters of the pipeline system (such as pipe diameter and flow velocity). In actual operation, the opening degree of the first multi-way valve can be precisely controlled using devices such as electric actuators to achieve a suitable state that meets the first batch of water supply requirements, ensuring that the first process unit receives a stable and adequate amount of cleaning water.

[0121] Following the same logic as determining the opening of the first multi-way valve, the second opening of the second multi-way valve is determined based on the second water supply volume, ensuring that the second-stage water pump provides the second-stage filtered water to the second process unit through the second pipeline at an accurate second water supply volume. Similarly, the third opening of the third multi-way valve is determined based on the third water supply volume, ensuring that the third-stage water pump provides the third-stage filtered water to the third process unit through the third pipeline and / or the third main pipeline at the required third water supply volume. By precisely adjusting the opening of the multi-way valves, fine control of the water supply to each process unit is achieved, meeting the specific water volume requirements of different processes during the cleaning process.

[0122] In some optional embodiments, the recycling module includes a water collection tank, a double-layer screen, and a suction well. The step of conveying cooling water to the recycling module to obtain recycled water includes: conveying cooling water to the water collection tank to allow the water collection tank to settle the cooling water and obtain first intermediate water; conveying the first intermediate water to the double-layer screen to allow the double-layer screen to filter impurities and obtain second intermediate water; and conveying the second intermediate water to the suction well for storage to obtain recycled water.

[0123] Specifically, the collection tank is a relatively large container with a certain buffering function, capable of receiving and temporarily storing cooling water. This creates conditions for subsequent sedimentation treatment, ensuring that the recycled water undergoes some impurities removal before entering the next process, thus improving the overall water quality. When the cooling water enters the collection tank, due to the reduced water flow velocity, some heavier, water-insoluble suspended particles carried in the water gradually settle to the bottom of the tank under gravity—this process is sedimentation. For example, impurities such as silt and metal shavings that may be present in the cooling water will accumulate at the bottom of the tank after a certain period of sedimentation, making the upper layer of water (i.e., the first intermediate water) relatively clear. This reduces the burden on subsequent filtration stages, initially improving water quality and facilitating further treatment.

[0124] Although the first intermediate water, after sedimentation in the collection tank, has had some large suspended impurities removed, it may still contain smaller particles and floating debris. It is then conveyed to a double-layer screen to utilize its filtration function for more precise interception and removal of these remaining impurities, further purifying the water. The double-layer screen consists of screen plates with different pore sizes. The upper screen has larger pores, primarily used to intercept larger floating objects, leaves, plastic fragments, and other visible impurities in the water, preventing these debris from entering the lower screen and causing blockages. The lower screen has relatively smaller pores, further removing smaller particles in the water, such as remaining fine sand and algae. Through this stratified filtration method, after the first intermediate water passes through the double-layer screen, impurities in the water are effectively intercepted, resulting in a second intermediate water with further improved purity, meeting the requirements for subsequent recycling.

[0125] The second intermediate water, filtered through a double-layer screen, is transported to the suction well, which serves as a storage and collection point. It stably holds the pre-treated water, providing a consistent water source for the circulating water pump. This ensures a continuous supply of relatively clean water for the entire water circulation system to draw and circulate. The water stored in the suction well at this stage is defined as recycled water. The water level and quality in the suction well significantly impact the normal operation of the circulating water pump. Maintaining sufficient recycled water in the suction well, and ensuring its cleanliness and absence of excessive impurities after filtration through the collection tank and double-layer screen, guarantees smooth water intake for the circulating water pump. This prevents pump wear and blockage caused by drawing in water containing impurities. It also helps maintain a stable water supply pressure and flow rate for the entire circulating water system, ensuring that each process unit receives water according to predetermined requirements and guaranteeing the smooth operation of the packaging substrate production process.

[0126] Implementing the embodiments of the present invention has the following beneficial effects: The embodiments of the present invention provide a water circulation method for packaging substrate production, comprising: acquiring water usage information of the packaging substrate production module, the water usage information representing the real-time water demand of one or more processes; determining the pump flow rate of the circulating water pump based on the water usage information; acquiring pipeline information between the packaging substrate production module and the circulating water pump; determining the head of the circulating water pump based on the pipeline information; determining the operating parameters of the circulating water pump based on the pump flow rate and head, so that the circulating water pump delivers the recycled water from the recycling module to the circulating water filtration unit for multi-stage filtration, and delivers the recycled water with different filtration levels to several process units of the packaging substrate production module, the different process units indicating different processes; controlling the packaging substrate production module to recover the used water after the use of several process units to the cooling module for cooling to obtain cooling water; controlling the cooling module to deliver the cooling water to the recycling module to obtain recycled water. By using water usage information from the packaging substrate production module, the filtered circulating water is delivered to multiple water-using process units within the packaging substrate production module to meet the water requirements of these process units. After use, the water is transported to a cooling tower for cooling and stored in a recycling module for subsequent extraction by the circulating water pump. This improves the utilization rate of water resources and avoids environmental pollution caused by direct wastewater discharge.

[0127] Secondly, referring to Figure 3 This invention also provides a water circulation system for the production of packaging substrates, comprising:

[0128] The first module is used to obtain water usage information of the packaging substrate production module, wherein the water usage information represents the real-time water usage requirements of one or more processes.

[0129] The second module is used to determine the pump flow rate of the circulating water pump based on the water usage information.

[0130] The third module is used to obtain pipeline information between the packaging substrate production module and the circulating water pump.

[0131] The fourth module is used to determine the head of the circulating water pump based on the pipeline information;

[0132] The fifth module is used to determine the operating parameters of the circulating water pump based on the pump water flow rate and head, so that the circulating water pump can transport the recycled water from the recycling module to the circulating water filtration unit for multi-stage filtration, and transport the recycled water with different filtration levels to several process units of the packaging substrate production module, with different process units indicating different processes.

[0133] The sixth module is used to control the packaging substrate production module to recycle the used water from several process units to the cooling module for cooling to obtain cooling water;

[0134] The seventh module is used to control the cooling module to deliver cooling water to the recycling module to obtain recycled water.

[0135] It is evident that the content of the above method embodiments is applicable to this system embodiment. The specific functions implemented in this system embodiment are the same as those in the above method embodiments, and the beneficial effects achieved are also the same as those achieved in the above method embodiments.

[0136] On the other hand, embodiments of the present invention provide a controller, including: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the above-described method.

[0137] It is evident that the content of the above method embodiments is applicable to this controller embodiment. The specific functions implemented by this controller embodiment are the same as those of the above method embodiments, and the beneficial effects achieved are also the same as those achieved by the above method embodiments.

[0138] On the other hand, embodiments of the present invention also provide a storage medium, which is a computer-readable storage medium storing a computer program that, when executed by a processor, implements the water circulation method for producing the aforementioned packaging substrate. The memory, as a non-transitory computer-readable storage medium, can be used to store non-transitory software programs and non-transitory computer-executable programs. Furthermore, the memory may include high-speed random access memory and non-transitory memory, such as at least one disk storage device, flash memory device, or other non-transitory solid-state storage device. In some embodiments, the memory may optionally include memory remotely located relative to the processor, and these remote memories can be connected to the processor via a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof. The device embodiments described above are merely illustrative; the units described as separate components may or may not be physically separate, and may be located in one place or distributed across multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of this embodiment.

[0139] In some alternative embodiments, the functions / operations mentioned in the block diagrams may not occur in the order shown in the operation diagrams. For example, depending on the functions / operations involved, two consecutively shown blocks may actually be executed substantially simultaneously, or the blocks may sometimes be executed in reverse order. Furthermore, the embodiments presented and described in the flowcharts of this application are provided by way of example to provide a more comprehensive understanding of the technology. The disclosed methods are not limited to the operations and logic flows presented herein. Alternative embodiments are contemplated in which the order of various operations is changed and sub-operations described as part of a larger operation are executed independently.

[0140] Furthermore, although this application is described in the context of functional modules, it should be understood that, unless otherwise stated to the contrary, one or more of the functions and / or features may be integrated into a single physical device and / or software module, or one or more functions and / or features may be implemented in a separate physical device or software module. It is also understood that a detailed discussion of the actual implementation of each module is unnecessary for understanding this application. Rather, given the properties, functions, and internal relationships of the various functional modules in the apparatus disclosed herein, the actual implementation of the module will be understood within the scope of conventional technology for an engineer. Therefore, those skilled in the art can implement the application set forth in the claims using ordinary techniques without excessive experimentation. It is also understood that the specific concepts disclosed are merely illustrative and not intended to limit the scope of this application, which is determined by the full scope of the appended claims and their equivalents.

[0141] In the foregoing description of this specification, the references to terms such as "one embodiment," "another embodiment," or "some embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0142] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

[0143] The above is a detailed description of the preferred embodiments of this application, but this application is not limited to the embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of this application, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A water circulation method for package substrate production, characterized by, An application is made in a water circulation system, the water circulation system including a recovery module, a circulation filtration module, a packaging substrate production module, and a cooling module. The circulation filtration module includes a circulating water pump and a circulating water filtration unit. The circulating water filtration unit includes a primary filtration device, a secondary filtration device, and a tertiary filtration device. A first primary water pump and a first multi-way valve are installed on a first main pipeline between the primary and secondary filtration devices. The first multi-way valve is connected to a first process unit of the packaging substrate production module through the first pipeline. A second primary water pump and a second multi-way valve are installed on a second main pipeline between the secondary and tertiary filtration devices. The second multi-way valve is connected to a second process unit of the packaging substrate production module through the second pipeline. A third primary water pump and a third multi-way valve are installed on a third main pipeline between the tertiary filtration device and the packaging substrate production module. The third multi-way valve is connected to a third process unit of the packaging substrate production module through the third main pipeline and / or the third pipeline. The water circulation method for packaging substrate production includes: Obtain water usage information for the packaging substrate production module, wherein the water usage information represents the real-time water usage requirements of one or more processes; The pump flow rate of the circulating water pump is determined based on the water usage information. Obtain the pipeline information between the packaging substrate production module and the circulating water pump; The head of the circulating water pump is determined based on the pipeline information; The operating parameters of the circulating water pump are determined based on the pump flow rate and head, so that the circulating water pump can transport the recycled water from the recycling module to the circulating water filtration unit for multi-stage filtration, and transport the recycled water with different filtration levels to several process units of the packaging substrate production module, with different process units indicating different processes. The packaging substrate production module controls the recycling of the used water from several process units to the cooling module for cooling to obtain cooling water; The cooling module is controlled to deliver cooling water to the recycling module to obtain recycled water; The circulating water filtration unit performs multi-stage filtration and delivers recycled water with different filtration levels to several process units of the packaging substrate production module, including: The first filtered water is obtained by mechanically filtering the recycled water through the primary filtration device. The first filtered water is transported to the first process unit and / or the first-stage filtration device through the first-stage water pump, the first multi-way valve, the first-stage pipeline and the first main pipeline; The second filtered water is obtained by filtration of the first filtered water with activated carbon through the secondary filtration device. The second filtered water is transported to the second process unit and / or the third-stage filtration device via the second-stage water pump, the second multi-way valve, the second pipeline, and the second main pipeline. The third filtered water is obtained by precisely filtering the second filtered water through the three-stage filtration device. The third filtered water is transported to the third process unit via the third stage water pump, the third multi-way valve, the third pipeline, and the third main pipeline.

2. The method of claim 1, wherein, Determining the head of the circulating water pump based on the pipeline information includes: Based on the pipeline information, determine the pipeline dimensions, curvature, and smoothness between the packaging substrate production module and the circulating water pump; The pipe resistance loss coefficient is determined based on the pipe size information, the pipe curvature, and the pipe smoothness. The head is determined based on the pipeline resistance loss coefficient.

3. The method according to claim 1, characterized in that, The water circulation system further includes a chemical supply module, which is connected to the primary filtration device, the secondary filtration device, and the tertiary filtration device, respectively. The method further includes: Obtain the first pH requirement information of the first process unit, the second pH requirement information of the second process unit, and the third pH requirement information of the third process unit; Based on the first pH requirement information, the first type and first quantity of medicine delivered by the medicine supply module to the first-stage filtration device are determined. The second type and second quantity of medicine delivered by the medicine supply module to the secondary filtration device are determined based on the first pH requirement information and the second pH requirement information. Based on the first pH requirement information, the second pH requirement information, and the third pH requirement information, the third drug type and the third drug quantity delivered by the drug supply module to the three-stage filtration device are determined.

4. The method according to claim 2, characterized in that, The process of determining the pipe resistance loss coefficient based on the pipe size information, the pipe curvature, and the pipe smoothness includes the following formula: Wherein, K represents the pipeline resistance loss coefficient. a, b, c Constant coefficients representing different values. This indicates the velocity of the water flow inside the pipe. Indicates the viscosity of water. This indicates the density of water. Indicates the pipe curvature. The pipe smoothness is represented by T, the water temperature by L, the pipe length by d, and the pipe inner diameter by d.

5. The method according to claim 1, characterized in that, After determining the operating parameters of the circulating water pump based on the pump flow rate and head, the method further includes: Obtain the pipeline pressure between the packaging substrate production module and the circulating water pump; If the pipeline pressure is greater than the preset pressure, adjust the operating parameters to make the pipeline pressure equal to the preset pressure. When the pipeline pressure is less than the preset pressure, obtain pipeline leakage detection information between the packaging substrate production module and the circulating water pump; When the pipeline leak detection information indicates that a pipeline leak has occurred, a leak alarm is generated, which includes the leak location, the extent of the leak, and the urgency of the leak. If the pipeline leak detection information indicates that no leak has occurred in the pipeline, the operating parameters are adjusted so that the pipeline pressure is equal to the preset pressure.

6. The method according to claim 1, characterized in that, The method further includes: The first cleaning water pressure and first water supply of the first process unit, the second cleaning water pressure and second water supply of the second process unit, and the third cleaning water pressure and third water supply of the third process unit are obtained. The first power of the first-stage water pump is determined based on the first cleaning water pressure, so that the first-stage water pump provides the first filtered water with the first cleaning water pressure to the first process unit through the first pipeline; The first opening degree of the first multi-way valve is determined according to the first water supply volume, so that the first primary water pump provides the first filtered water of the first water supply volume to the first process unit through the first pipeline; The second power of the second-stage water pump is determined based on the second cleaning water pressure, so that the second-stage water pump provides the second filtered water with the second cleaning water pressure to the second process unit through the second pipeline; The second opening degree of the second multi-way valve is determined according to the second water supply volume, so that the second-stage water pump provides the second filtered water of the second water supply volume to the second process unit through the second pipeline; The third power of the third stage water pump is determined based on the third cleaning water pressure, so that the third stage water pump provides the third filtered water at the third cleaning water pressure to the third process unit through the third pipeline and / or the third main pipeline; The third opening degree of the third multi-way valve is determined based on the third water supply volume, so that the third stage water pump provides the third filtered water of the third water supply volume to the third process unit through the third pipeline and / or the third main pipeline.

7. The method according to claim 1, characterized in that, The recycling module includes a water collection tank, a double-layer screen, and a suction well. The process of supplying cooling water to the recycling module to obtain recycled water includes: Cooling water is transported to the water collection tank so that the water collection tank can settle the cooling water to obtain the first intermediate water; The first intermediate water is conveyed to the double-layer screen so that the double-layer screen filters out impurities to obtain the second intermediate water; The second intermediate water is transported to the suction well for storage to obtain recycled water.

8. A water circulation system for the production of packaging substrates, characterized in that, The water circulation system for producing the packaging substrate, applicable to the method of any one of claims 1-7, comprises: The first module is used to obtain water usage information of the packaging substrate production module, wherein the water usage information represents the real-time water usage requirements of one or more processes. The second module is used to determine the pump flow rate of the circulating water pump based on the water usage information. The third module is used to obtain pipeline information between the packaging substrate production module and the circulating water pump. The fourth module is used to determine the head of the circulating water pump based on the pipeline information; The fifth module is used to determine the operating parameters of the circulating water pump based on the pump water flow rate and head, so that the circulating water pump delivers the recycled water from the recovery module to the circulating water filtration unit for multi-stage filtration, and delivers the recycled water with different filtration levels to several process units of the packaging substrate production module, where different process units indicate different processes; the circulating water filtration unit performs multi-stage filtration and delivers the recycled water with different filtration levels to several process units of the packaging substrate production module, including: The first filtered water is obtained by mechanically filtering the recycled water through the primary filtration device. The first filtered water is transported to the first process unit and / or the first-stage filtration device through the first-stage water pump, the first multi-way valve, the first-stage pipeline and the first main pipeline; The second filtered water is obtained by filtration of the first filtered water with activated carbon through the secondary filtration device. The second filtered water is transported to the second process unit and / or the third-stage filtration device via the second-stage water pump, the second multi-way valve, the second pipeline, and the second main pipeline. The third filtered water is obtained by precisely filtering the second filtered water through the three-stage filtration device. The third filtered water is transported to the third process unit via the third stage water pump, the third multi-way valve, the third pipeline, and the third main pipeline. The sixth module is used to control the packaging substrate production module to recycle the used water from several process units to the cooling module for cooling to obtain cooling water; The seventh module is used to control the cooling module to deliver cooling water to the recycling module to obtain recycled water.

9. A controller, characterized in that, include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor, when executing the computer program, implements the method of any one of claims 1-7.

Images