Water circulation method, system and controller for packaging substrate production

Abstract

The invention discloses a water circulation method and system for packaging substrate production and a controller. The method comprises the following steps: acquiring water consumption information of a packaging substrate production module; determining the water pumping flow of the circulating water pump according to the water consumption information; information of a pipeline between the packaging substrate production module and the circulating water pump is obtained; determining the lift of the circulating water pump according to the pipeline information; determining operation parameters of the circulating water pump according to the water pumping flow and the lift; the packaging substrate production module is controlled to recover used water used by the plurality of process units to the cooling module for cooling, and then cooling water is obtained; and the cooling module is controlled to convey the cooling water to the recycling module to obtain recycled water. The device can improve the utilization rate of water resources, and can be widely applied to the technical field of packaging substrate production.

Description

Technical Field

[0001] The present invention relates to the technical field of packaging substrate production, and in particular to a water circulation method, system and controller for packaging substrate production. Background Art

[0002] In the production process of packaging substrates, multiple process levels such as copper reduction, copper plating, lamination, wiring, solder mask, electroplating, cleaning, OSP (Organic Solderability Preservative) and so on all require water for cleaning or cooling to ensure the production of packaging substrates.

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

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

[0005] In a first aspect, an embodiment of the present invention provides a water circulation method for producing a package substrate, which is applied to a water circulation system. The water circulation system includes a recovery module, a circulation filtration module, a package substrate production module, and a cooling module. The circulation filtration module includes a circulation water pump and a circulation water filtration unit. The water circulation method for producing a package substrate includes:

[0006] Acquire water usage information of the packaging substrate production module, where the water usage information represents real-time water demand of one or more processes;

[0007] determining the pumping flow rate of the circulating water pump according to the water use information;

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

[0009] Determining the head of the circulating water pump according to the pipeline information;

[0010] determining the operating parameters of the circulating water pump according to the pump water flow rate and head, so that the circulating water pump transports the recycled water from the recycling module to the circulating water filtration unit for multi-stage filtration, and transports the recycled water with different filtration degrees to several process units of the packaging substrate production module, where different process units indicate different processes;

[0011] Controlling the packaging substrate production module to recycle the used water of the plurality of process units to the cooling module for cooling to obtain cooling water;

[0012] The cooling module is controlled to transport the cooling water to the recovery module to obtain the recovered water.

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

[0014] Determine the pipeline size information, pipeline curvature, and pipeline smoothness between the packaging substrate production module and the circulating water pump according to the pipeline information;

[0015] Determining a pipeline resistance loss coefficient according to the pipeline size information, the pipeline curvature, and the pipeline smoothness;

[0016] The lift is determined according to 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 first secondary water pump and a first multi-way valve are provided on the first main pipeline between the primary filtration device and the secondary filtration device; the first multi-way valve is connected to the first process unit of the packaging substrate production module through the first pipeline; a second secondary water pump and a second multi-way valve are provided on the second main pipeline between the secondary filtration device and the tertiary filtration device; the second multi-way valve is connected to the second process unit of the packaging substrate production module through the second pipeline; a third secondary water pump and a third multi-way valve are provided on the third main pipeline between the tertiary filtration device and the packaging substrate production module; the third multi-way valve is connected to the 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 transports recovered water with different filtration degrees to several process units of the packaging substrate production module, including:

[0018] Mechanically filtering the recovered water through the primary filtering device to obtain first filtered water;

[0019] delivering the first filtered water to the first process unit and / or the first-stage filtering device through the first secondary water pump, the first multi-way valve, the first pipeline and the first main pipeline;

[0020] The first filtered water is filtered through the secondary filtering device with activated carbon to obtain second filtered water;

[0021] delivering the second filtered water to the second process unit and / or the tertiary filtration device through the second secondary water pump, the second multi-way valve, the secondary pipeline and the second main pipeline;

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

[0023] The third filtered water is delivered to the third process unit through the third secondary 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 drug supply module, wherein the drug supply module is respectively connected to the primary filter device, the secondary filter device, and the tertiary filter device, and the method further includes:

[0025] Acquire 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;

[0026] determining the type and amount of the first liquid medicine delivered by the medicine supply module to the primary filtration device according to the first pH requirement information;

[0027] determining the type and amount of the second liquid medicine delivered by the medicine supply module to the secondary filtration device according to the first pH requirement information and the second pH requirement information;

[0028] The type and amount of the third liquid medicine delivered by the medicine supply module to the three-stage filtration device are determined according to the first pH requirement information, the second pH requirement information, and the third pH requirement information.

[0029] In some optional embodiments, determining the pipeline resistance loss coefficient according to the pipeline size information, the pipeline curvature, and the pipeline smoothness includes the formula:

[0030]

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

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

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

[0034] When the pipeline pressure is greater than a preset pressure, adjusting the operating parameters so that the pipeline pressure is equal to the preset pressure;

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

[0036] When the pipeline leakage detection information indicates that a pipeline leak occurs, generating leakage alarm information, the leakage alarm information including the leakage location, leakage degree and leakage urgency;

[0037] When the pipeline leakage detection information indicates that no leakage occurs 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] Obtaining a first washing water pressure and a first water supply volume of the first process unit, a second washing water pressure and a second water supply volume of the second process unit, and a third washing water pressure and a third water supply volume of the third process unit;

[0040] determining a first power of the first secondary water pump according to the first cleaning water pressure, so that the first secondary water pump provides first filtered water at the first cleaning water pressure to the first process unit through the first pipeline;

[0041] determining a first opening of the first multi-way valve according to the first water supply volume, so that the first secondary water pump provides the first filtered water of the first water supply volume to the first process unit through the first pipeline;

[0042] determining a second power of the second secondary water pump according to the second cleaning water pressure, so that the second secondary water pump provides second filtered water at the second cleaning water pressure to the second process unit through the second pipeline;

[0043] determining a second opening of the second multi-way valve according to the second water supply volume, so that the second secondary water pump provides the second filtered water of the second water supply volume to the second process unit through the second pipeline;

[0044] determining a third power of the third secondary water pump according to the third cleaning water pressure, so that the third secondary 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 of the third multi-way valve is determined according to the third water supply volume, so that the third secondary 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 recovery module includes a water collection tank, a double-layer grid, and a water absorption well, and the step of transporting the cooling water to the recovery module to obtain recycled water includes:

[0047] transporting the cooling water to the water collection tank, so that the cooling water is precipitated in the water collection tank to obtain first intermediate water;

[0048] The first intermediate water is transported to the double-layer grid, so that the double-layer grid filters impurities to obtain the second intermediate water;

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

[0050] In a second aspect, an embodiment of the present invention provides a water circulation system for producing a packaging substrate, comprising:

[0051] The first module is used to obtain 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;

[0052] The second module is used to determine the pumping flow rate of the circulating water pump according to the water use information;

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

[0054] A fourth module is used to determine the head of the circulating water pump according to the pipeline information;

[0055] a fifth module, configured to determine operating parameters of the circulating water pump based on the pump water flow rate and lift, so that the circulating water pump delivers recycled water from the recovery module to a circulating water filtration unit for multi-stage filtration, and delivers recycled water with different filtration degrees to a plurality of process units of the package substrate production module, where different process units indicate different processes;

[0056] A sixth module is configured to control the package substrate production module to recycle the used water of the plurality of process units to a cooling module for cooling to obtain cooling water;

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

[0058] In a third aspect, an embodiment of the present invention provides a controller comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the above-mentioned method when executing the computer program.

[0059] In a fourth aspect, an embodiment of the present invention provides a computer storage medium, wherein the computer storage medium stores computer-executable instructions, and the computer-executable instructions are used to execute the above method.

[0060] Implementation of the embodiments of the present invention includes the following beneficial effects: The embodiments of the present invention provide a water circulation method for packaging substrate production, including: obtaining water use information of the packaging substrate production module, the water use information representing the real-time water demand of one or more processes; determining the pumping flow rate of the circulating water pump based on the water use information; obtaining 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 pumping flow rate and the head, so that the circulating water pump transports the recycled water of the recycling module to the circulating water filtration unit for multi-stage filtration, and transports the recycled water with different filtration degrees to several process units of the packaging substrate production module, different process units indicating different processes; controlling the packaging substrate production module to recycle the used water of several process units to the cooling module for cooling to obtain cooling water; controlling the cooling module to transport the cooling water to the recycling module to obtain recycled water. Through the water usage information of the packaging substrate production module, the circulating water is filtered and transported to multiple water-consuming process units of the packaging substrate production module to meet the water needs of the process units. After use, the water is transported to the cooling tower for cooling and stored in the recovery module to be extracted by the subsequent circulating water pump, thereby improving the utilization rate of water resources and avoiding environmental pollution caused by directly discharging wastewater. BRIEF DESCRIPTION OF THE DRAWINGS

[0061] Figure 1 This is a flow chart of the steps of a water circulation method for producing a packaging substrate provided by an embodiment of the present invention;

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

[0063] Figure 3 This is a structural block diagram of a water circulation system for producing packaging substrates provided by an embodiment of the present invention. DETAILED DESCRIPTION

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

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

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

[0067] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0068] An embodiment of the present invention provides a water circulation method, system and controller for packaging substrate production, wherein the water circulation method for packaging substrate production includes: obtaining water use information of the packaging substrate production module, the water use information representing the real-time water demand of one or more processes; determining the pumping flow rate of the circulating water pump based on the water use information; obtaining 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 pumping flow rate and the head, so that the circulating water pump transports the recycled water of the recycling module to the circulating water filtration unit for multi-stage filtration, and transports the recycled water with different filtration degrees to several process units of the packaging substrate production module, different process units indicating different processes; controlling the packaging substrate production module to recycle the used water of several process units to the cooling module for cooling to obtain cooling water; controlling the cooling module to transport the cooling water to the recycling module to obtain recycled water. Through the water usage information of the packaging substrate production module, the circulating water is filtered and transported to multiple water-consuming process units of the packaging substrate production module to meet the water needs of the process units. After use, the water is transported to the cooling tower for cooling and stored in the recovery module to be extracted by the subsequent circulating water pump, thereby improving the utilization rate of water resources and avoiding environmental pollution caused by directly discharging wastewater.

[0069] The packaging substrate packaging method according to the embodiment of the present invention is further described below.

[0070] Reference Figure 1, Figure 1 A flow chart of a water circulation method for producing a package substrate provided by an embodiment of the present invention, wherein the water circulation method for producing a package substrate is applied to Figure 2 The water circulation system shown in the figure and the water circulation method for producing the package substrate include but are not limited to the following steps:

[0071] S100, obtaining water usage information of the packaging substrate production module, where the water usage information represents real-time water demand of one or more processes;

[0072] S200, determining the pumping flow rate of the circulating water pump according to the water use information;

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

[0074] S400, determining the head of the circulating water pump according to the pipeline information;

[0075] S500, determining operating parameters of the circulating water pump based on the pump water flow rate and head, so that the circulating water pump transports the recycled water from the recycling module to the circulating water filtration unit for multi-stage filtration, and transports the recycled water with different filtration degrees to multiple process units of the packaging substrate production module, where different process units indicate different processes;

[0076] S600, controlling the packaging substrate production module to recycle the used water of the plurality of process units to the cooling module for cooling to obtain cooling water;

[0077] S700: Control the cooling module to transport cooling water to the recovery module to obtain recovered water.

[0078] Specifically, to accurately meet the water demand of each process in the packaging substrate production module, it is first necessary to obtain its water usage information. This information can reflect the current water demand of one or more processes in real time. This is because different processes at different production stages, such as cleaning, etching, and electroplating, have different water requirements and they change dynamically with factors such as production progress and product specifications. Various sensors (such as flow sensors and water level sensors) are installed on 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 rate of the process unit based on the water usage data and preset water requirements. For example, in the post-photolithography cleaning process, a large flow of water may be required to quickly rinse away the residual photoresist on the substrate surface; while in certain fine etching processes, to ensure etching accuracy, the water consumption is relatively small and the water flow stability is more demanding. These different real-time requirements 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 and possible water losses (such as pipe leakage, evaporation, etc.) are combined to determine the water flow rate that the circulating water pump should provide. For example, if the cleaning process requires 5m 3 / h water flow rate, the etching process requires 2m 3 / h, taking into account a certain margin (assuming a 10% loss margin), the water flow rate of the circulating water pump should be set to at least (5+2)×(1+10%)=7.7m 3 / h, thereby ensuring that there is enough water supplied to each process to meet production needs.

[0079] Pipeline information includes many aspects, such as the material, inner diameter, length, roughness of the pipeline, and the number and type of elbows, valves and other pipe fittings in the pipeline. These factors will affect the resistance of water flowing in the pipeline, which in turn affects the head required by the circulating water pump. Accurate pipeline information can be obtained by detailed mapping and recording of the entire pipeline system from the packaging substrate production module to the circulating water pump, or with the help of automated pipeline inspection equipment (such as pipeline endoscopes to view the internal situation). A smaller inner diameter of the pipeline will increase the flow rate of the water flow and increase the water flow resistance; the longer the pipeline, the more work the water has to do to overcome friction during the flow process, and the more energy is lost; and elbows, valves and other pipe fittings will change the direction of the water flow, causing local resistance loss, all of which need to be taken into account in the calculation of the head.

[0080] According to the two key indicators of pump water flow and head determined earlier, the operating parameters of the circulating water pump are finally determined. This is like setting specific working "instructions" for the water pump so that it can operate efficiently and stably while meeting the production water demand. These operating parameters include the speed of the water pump, motor power, impeller angle, etc. By accurately matching the appropriate operating parameters, the water pump can transport the recycled water from the recycling module to the circulating water filtration unit for multi-stage filtration as required, and ensure that the recycled water with different filtration degrees can be accurately transported to several process units corresponding to the packaging substrate production module. For example: If it is determined that the required pump water flow is 10m 3 / h, and a head of 30 meters, then it is necessary to find the corresponding combination of speed, power, and other parameters in the pump's performance curve chart, or calculate it using the corresponding formula. The pump's operating parameters are then adjusted to this optimal match, ensuring that the pump's output water flow and pressure meet the requirements. The circulating water pump operates according to the set operating parameters, first extracting the recycled water collected by the recovery module and delivering it to the circulating water filtration unit. In the circulating water filtration unit, the recycled water's quality is gradually improved through multiple stages of 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), meeting the varying water quality requirements of different process units. The recycled water, which has undergone varying degrees of filtration, is then precisely delivered to the corresponding process units (specifically, using different secondary pumps to complete the delivery). For example, highly filtered ultrapure water is delivered to the electron beam evaporation process, which requires extremely high water quality, while water that has only undergone preliminary filtration is supplied to the substrate pre-cleaning process, which has slightly lower water quality requirements. This ensures the rational allocation and efficient use of water resources.

[0081] After water is used in each process unit of the package substrate production module, this used water, carrying heat and possibly small amounts of impurities, is recycled back to the cooling module through specially designed drainage pipes and a recovery system, precisely controlled by the control system. This recycling process effectively prevents water waste and is a key link in the entire water recycling system, laying the foundation for subsequent reuse. For example, if the water used in the electroplating process is hot and contains a small amount of plating solution residue, recycling it to the cooling module not only prevents direct discharge of this contaminated water and potentially polluting the environment, but also allows it to be cooled and then returned to the production water cycle.

[0082] The cooling module utilizes the principle of heat exchange, and includes air-cooling, water-cooling, or a combination of the two. For example, a water-cooling module allows hot water to exchange heat with low-temperature cooling water (or cooling medium) in a heat exchanger, thereby lowering the temperature of the hot water and converting it into cooling water that meets the requirements of the circulating water system. The cooling module then transports this cooling water to the recovery module. After a certain amount of simple treatment such as sedimentation and filtration, it is converted back into recycled water that can be pumped out by the circulating water pump. This cycle is repeated, realizing the recycling of water resources throughout the entire packaging substrate production process, reducing production costs, improving resource utilization efficiency, and also meeting environmental requirements.

[0083] In some optional embodiments, determining the lift 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 lift based on the pipeline resistance loss coefficient.

[0084] Specifically, use equipment such as an angle measuring instrument or a total station to measure the bending angle of the pipeline at each elbow. For irregular curved pipelines, segmented measurements and cumulative measurements are required. At the same time, the radius of the bend in the pipeline is measured. The size of the bending radius will affect the smoothness of the water flow and the amount of resistance. By checking the surface condition of the inner wall of the pipeline, observing whether there is rust, scale, uneven welds, etc., and considering the impact of the pipeline material on smoothness, the initial smoothness and changes in smoothness over time of pipelines of different materials are different. For example, stainless steel pipes are relatively smooth, while cast iron pipes may easily rust, resulting in a decrease in smoothness. Therefore, the corresponding pipeline smoothness and pipeline curvature are obtained through comprehensive analysis. Substitute the inner diameter and pipeline length in the pipeline size information, as well as the measured pipeline smoothness and pipeline curvature parameters into the corresponding calculation formula to calculate the resistance loss coefficient along the way.

[0085] According to the total resistance loss coefficient and water flow rate, density and other parameters, the pressure head corresponding to the pipeline resistance loss is calculated using the formula. For example, according to the formula (where h f = is the pressure head of the resistance loss along the way, K is the resistance loss coefficient along the way, that is, the pipe resistance loss coefficient, L is the pipe length, d is the pipe inner diameter, v is the water flow velocity, G is the acceleration of gravity) calculate the pressure head of the resistance loss along the way. Measure the height difference between the packaging substrate production module and the circulating water pump, according to the formula h z =ΔZ (where h z=Height difference is the pressure head generated by the height difference, Z is the height difference, and Δ represents the pressure head per unit height difference) Calculate the pressure head generated by the height difference. Considering the water pressure requirements of each process of the packaging substrate production module, determine the residual pressure head required by the water at the end of the pipeline. Lift calculation: Add the above three pressure heads (that is, the residual pressure head required by the water at the end of the pipeline + h f +h z ) to obtain the head required by the circulating water pump.

[0086] In some optional embodiments, determining the pipeline resistance loss coefficient according to the pipeline size information, the pipeline curvature, and the pipeline smoothness includes the formula:

[0087]

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

[0089] Specifically, the constant coefficients a, b, and c are empirical values ​​derived through extensive experimental and theoretical research. They comprehensively account for various complex factors affecting fluid flow in pipes, such as pipe material and fluid flow conditions. Water velocity is a key factor affecting pipe resistance loss. According to fluid mechanics, as water velocity increases, the fluid's kinetic energy increases, intensifying friction and collision with the pipe wall, leading to increased resistance loss. In laminar flow, resistance loss is proportional to the first power of the water velocity; in turbulent flow, resistance loss is proportional to the square of the water velocity or higher powers. Water viscosity reflects the internal friction between water molecules. The greater the viscosity, the stronger the mutual restraint between water molecules, and the greater the resistance to flow in the pipe. The greater the curvature of the pipe, the more dramatic the directional changes of the water flow, resulting in greater localized resistance loss. This is because the water flow forms vortices and secondary flows at bends, increasing the turbulence and energy loss of the flow. There is a positive correlation between pipe curvature and the resistance loss coefficient: the greater the curvature, the greater the K value. The smoothness of a pipe directly affects the frictional resistance between the water flow and the pipe wall. The smoother the pipe's inner wall, the less friction there is between the water flow and the wall, and the smaller the resistance loss coefficient. Conversely, a rougher inner wall will increase the frictional resistance of the water flow, leading to an increase in the resistance loss coefficient. When the water temperature drops, the water's activity decreases, and the resistance loss coefficient increases accordingly. The longer the pipe, the longer the distance the water flows within it, and the greater the opportunities for friction and collision with the pipe wall. Therefore, the resistance loss along the way is proportional to the pipe length. The inner diameter of the pipe has a significant impact on the water flow velocity and flow state. According to the definition of the Reynolds number, the Reynolds number is proportional to the inner diameter of the pipe and the water flow velocity, and inversely proportional to the viscosity of the water. When the inner diameter of the pipe is small, the water flow velocity is relatively high, which easily forms turbulence and increases the resistance loss coefficient.

[0090] In some optional embodiments, after determining the operating parameters of the circulating water pump based on the pump water flow and head, the method further includes: obtaining the pipeline pressure between the packaging substrate production module and the circulating water pump; when the pipeline pressure is greater than a preset pressure, adjusting the operating parameters so that the pipeline pressure is equal to the preset pressure; when the pipeline pressure is less than the preset pressure, obtaining 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, adjusting the operating parameters so that the pipeline pressure is equal to the preset pressure.

[0091] Specifically, by installing pressure sensors at key locations in the pipeline between the package substrate production module and the circulating water pump, real-time pressure readings within the pipeline can be obtained. These pressure readings reflect the current operating pressure of the circulating water system within this range. Comparing this with the preset pressure—a standard pressure value determined based on a combination of factors, including the package substrate production process requirements, pipeline system design parameters, and the normal operating range of the circulating water pump—compared with the real-time pipeline pressure can promptly detect any deviations from the normal range, thereby determining any system anomalies and enabling appropriate countermeasures to ensure stable system operation.

[0092] When the pipeline pressure is greater than the preset pressure, it means that the water pressure in the pipeline is too high, which may cause a series of problems, such as increasing the risk of pipeline rupture, damaging the seals at the pipeline connection parts, and even affecting the normal operation of some pressure-sensitive process equipment in the packaging substrate production module. Therefore, it is necessary to promptly adjust the operating parameters of the circulating water pump to reduce the pipeline pressure and restore it to the preset pressure level to ensure the safe and stable operation of the system. Ways to adjust the operating parameters: This can be achieved by reducing the speed of the circulating water pump, reducing the pump flow, or adjusting the opening of the pump outlet valve. For example, reducing the speed of the water pump can reduce the output power of the water pump, thereby reducing the water flow and pressure delivered to the pipeline accordingly; closing the outlet valve opening will increase the resistance of the pipeline system, causing the pressure in the pipeline to decrease, ultimately achieving the goal of making the pipeline pressure equal to the preset pressure.

[0093] When pipeline pressure falls below the preset pressure, it could be due to a leak, causing some water to escape and subsequently causing a pressure drop. Other factors could also be the cause, such as a circulating water pump failure resulting in insufficient output pressure, or a valve in the pipeline not fully opening, causing an abnormally increased flow resistance. Therefore, it's necessary to obtain pipeline leak detection information to accurately determine whether a leak exists so that appropriate measures can be taken.

[0094] Pipeline leakage detection methods and information content: Pipeline leakage detection methods include acoustic detection method (detection using the sound signal generated when a leak occurs), pressure wave detection method (judgment based on the pressure wave changes caused by the leak), flow difference detection method (comparing the flow difference between the inlet and outlet of the pipeline), etc. The specific detection method is not limited here. Pipeline leakage detection information includes details such as whether there is a leak and, if there is a leak, the leak location, leak degree and leak urgency. Based on the pipeline leakage detection information, corresponding smart decision-making information is generated. The smart decision-making information includes the location of the leak, the type of leak, the urgency of the leak and how to deal with it, and generates corresponding processing manuals and precautions and other information, so that the smart decision-making information is sent to the corresponding processing personnel for processing. For example, the leak location can help maintenance personnel quickly locate the fault point, and the leak degree and urgency can allow relevant personnel to assess the severity of the problem and reasonably arrange the maintenance sequence and resource allocation.

[0095] Adjustment measures when no leaks occur: If the pipeline leak detection information indicates that the pipeline is not leaking, the insufficient pipeline pressure is likely caused by other reasons, and the operating parameters of the circulating water pump need to be adjusted to increase the pipeline pressure. The adjustment method is the opposite of the previous one for excessive pressure. You can appropriately increase the pump speed, increase the pump flow, or check and adjust the opening of the pipeline valve to bring the pipeline pressure back to the preset pressure, ensuring normal water supply to the system and the water needs 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 first secondary water pump and a first multi-way valve are provided on the first main pipeline between the primary filtration device and the secondary filtration device, the first multi-way valve is connected to the first process unit of the packaging substrate production module through the first pipeline, a second secondary water pump and a second multi-way valve are provided on the second main pipeline between the secondary filtration device and the tertiary filtration device, the second multi-way valve is connected to the second process unit of the packaging substrate production module through the second pipeline, a third secondary water pump and a third multi-way valve are provided on the third main pipeline between the tertiary filtration device and the packaging substrate production module, the third multi-way valve is connected to the third process unit of the packaging substrate production module through the third main pipeline and / or the third pipeline, and the circulating water filtration unit performs multi-stage filtration. Filtering, and delivering recycled water with different filtration degrees to several process units of the packaging substrate production module, including: mechanically filtering the recycled water through the first-level filtration device to obtain first filtered water; delivering the first filtered water to the first process unit and / or the first-level filtration device through the first secondary water pump, the first multi-way valve, the first pipeline and the first main pipeline; performing activated carbon filtration on the first filtered water through the second-level filtration device to obtain second filtered water; delivering the second filtered water to the second process unit and / or the tertiary filtration device through the second secondary water pump, the second multi-way valve, the second pipeline and the second main pipeline; precision filtering the second filtered water through the tertiary filtration device to obtain third filtered water; delivering the third filtered water to the third process unit through the third secondary water pump, the third multi-way valve, the third pipeline and the third main pipeline.

[0097] Specifically, the primary filtration device, as the starting point of the entire filtration process, primarily performs mechanical filtration. Using filter media such as quartz sand and anthracite, the pores intercept and screen large impurities such as suspended particles, silt, and rust in the recycled water, removing these visible or relatively large impurities. This provides initial purification of the recycled water, resulting in the first filtered water. This effectively protects subsequent filtration devices and piping systems, preventing clogging and wear caused by large impurities.

[0098] The first secondary water pump is installed on the first main pipeline between the first filter device and the second filter device. 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 connects to the first process unit of the package substrate production module via the primary pipeline and also to the first main pipeline. Based on actual water demand and system control requirements, the first multi-way valve flexibly switches water flow direction, allowing the first filtered water to be delivered to the first process unit through the primary pipeline for use, and / or allowing the first filtered water to continue through the first main pipeline to the subsequent secondary filtration device for further filtration. The appropriate filtration settings are determined based on the actual water demand of the process unit.

[0100] Secondary filtration: The first filtered water, after the primary filtration, undergoes activated carbon filtration. Leveraging the activated carbon's developed pore structure and large surface area, it absorbs impurities such as organic matter, residual chlorine, odor, and color, further improving water quality and producing the second filtered water. This step significantly improves water purity and sensory indicators (such as color and odor), making it more suitable for processes with demanding water quality requirements.

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

[0102] The second multi-way valve is connected to the second process unit through the secondary pipeline and is also connected to the second main pipeline. It also has the function of flexibly adjusting the direction of water flow. According to the actual production situation, the second multi-way valve is controlled to connect different pipelines, so that the second filtered water is sent to the second process unit through the secondary pipeline to meet the current production water demand, and / or the second filtered water is allowed to continue to flow through the second main pipeline to the tertiary filtration device for the next step of precision filtration.

[0103] Three-stage filtration device: performs precision filtration tasks, uses filter materials with high-precision filtration accuracy (such as microporous filter membranes, ultrafiltration membranes, etc.), and conducts more refined processing on the second filtered water. Through screening, adsorption, interception and other functions, it removes tiny particles, bacteria, viruses, colloids, large molecular organic matter and other fine impurities in the water to obtain high-quality third filtered water, which meets the use requirements of process units with strict water quality requirements.

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

[0105] The third multi-way valve is connected to the third process unit through the third main pipeline and / or the third tertiary pipeline. According to the specific water use arrangement, process requirements and the overall operation status of the system, the water flow path is reasonably switched to accurately deliver the third filtered water to the third process unit so that it can participate in the packaging substrate production process.

[0106] The specific filtration process: Recycled water first enters the primary filtration device for mechanical filtration. Large impurities are trapped by the filter medium, resulting in first-stage filtered water. Subsequently, powered by the first secondary water pump and regulated by the first multi-way valve, the first filtered water is transported through the primary pipeline and the first main pipeline to the first process unit for use after initial water purification. The first process unit includes one or more processes, with no specific restrictions. Furthermore, as needed, the first filtered water can 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 device is filtered with activated carbon, where organic matter, residual chlorine and other impurities in the water are adsorbed by the activated carbon to produce second filtered water; then, the second secondary water pump drives the second filtered water to flow in the pipeline, and the second multi-way valve switches the water flow direction according to actual conditions, and the second filtered water can be transported to the second process unit through the secondary pipeline to provide water with better water quality and meeting its process requirements for the process of the second process unit. The second process unit may include one or more of the first processes, which are not specifically limited; and / or the second filtered water is allowed to flow along the second main pipeline to the tertiary filtration device for more precise filtration treatment. The second filtered water reaching the three-stage filtration device is precisely filtered to remove various fine impurities, forming third filtered water; finally, under the push of the third secondary water pump, the third multi-way valve arranges the third filtered water according to the set flow direction, through the third main pipeline and / or the third pipeline, and accurately transports the third filtered water to the third process unit, ensuring that the processes of the third process unit can use high-quality filtered water that meets its high standards, thereby ensuring the smooth progress of packaging substrate production and the stability and reliability of product quality. The third process unit includes one or more first processes, without specific limitation.

[0107] In some optional embodiments, the method further includes: obtaining a first cleaning water pressure and a first water supply volume of the first process unit, a second cleaning water pressure and a second water supply volume of the second process unit, and a third cleaning water pressure and a third water supply volume of the third process unit; determining a first power of the first secondary water pump according to the first cleaning water pressure, so that the first secondary 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 of the first multi-way valve according to the first water supply volume, so that the first secondary water pump provides the first filtered water of the first water supply volume to the first process unit through the first pipeline; determining a second power of the second secondary water pump according to the second cleaning water pressure, so that the second secondary water pump The second filtered water at the second washing water pressure is provided 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 secondary water pump provides 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 secondary water pump is determined according to the third washing water pressure, so that the third secondary water pump provides the third filtered water at the third washing 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 secondary water pump provides 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 also includes a drug supply module, which is connected to the primary filtration device, the secondary filtration device and the tertiary filtration device respectively, and the method also includes: obtaining 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; determining the first type and first amount of medicine delivered to the primary filtration device by the drug supply module according to the first pH requirement information; determining the second type and second amount of medicine delivered to the secondary filtration device by the drug supply module according to the first pH requirement information and the second pH requirement information; determining the third type and third amount of medicine delivered to the tertiary filtration device by the drug supply module according to the first pH requirement information, the second pH requirement information and the third pH requirement information.

[0109] Specifically, the drug supply module plays a key regulatory role in the entire water circulation system. By delivering the corresponding chemical solution to the filter devices at different levels, it can precisely control the pH and other chemical properties of the water treated by each filter device, so that it better meets the specific water quality chemical characteristics requirements of each process unit in the packaging substrate production module, ensuring the smooth progress of the production process and the stability of product quality. Different packaging substrate production processes have different requirements for water pH. For the first process unit, obtaining its first pH requirement information is to clarify the pH range of water required for the normal operation of the first process unit and to achieve optimal production results. For example, some cleaning processes may require slightly acidic water to better remove oxides or impurities on the substrate surface, while other processes may require nearly neutral water. Similarly, the second and third process units each have pH requirements that suit their own process characteristics. The second process unit involves a specific chemical treatment process, which requires water with a specific pH to ensure the smooth progress of the chemical reaction or avoid adverse effects on the substrate material. The third process unit also has strict requirements on the pH of water based on its specific role in the packaging substrate production process. The acquisition of this demand information can ensure that the chemical properties of the water used in each link of the entire production process meet the process standards.

[0110] Determine the type of the first chemical solution: The type of the first chemical solution delivered by the drug supply module to the primary filtration device is determined based on the pH requirement of the first process unit. If the first process unit requires an acidic environment, and analysis of the water treated by the primary filtration device indicates neutral or alkaline, then a suitable acidic solution, such as dilute hydrochloric acid or sulfuric acid, should be selected (the specific selection should take into account various factors, such as safety and the impact on subsequent processes). Conversely, if an alkaline environment is required, a corresponding alkaline solution, such as sodium hydroxide solution, should be selected.

[0111] Determine the amount of the first potion: The determination of the potion amount must take into account the precise pH requirements of the first process unit, as well as factors such as the amount of water to be treated by the first-stage filtration device. By comprehensively calculating the pH range required by the first process unit, the water flow rate of the first-stage filtration device, and the pH concentration of the selected potion, the amount of the first potion can be accurately determined to ensure that the water treated by the first-stage filtration device after the potion is injected can meet the pH requirements of the first process unit. For example, if the water flow rate of the first-stage filtration device is large and the acidity required by the first process unit is strong, the amount of acidic potion to be added will need to be increased accordingly. However, it is also necessary to avoid excessive addition that causes the pH to exceed the required range, affecting subsequent processes or causing corrosion to the equipment.

[0112] Determining the Secondary Solution Type: When considering the secondary solution type, it's necessary to consider the first pH requirement information for the first process unit and the second pH requirement information for the second process unit. 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 produce the second filtered water, the pH difference between the first and second filtered waters can be determined using the first and second pH requirement information. This difference can then be used to determine the type of secondary solution to be added to the secondary filtration unit. For example, if the first process unit requires slightly acidic water, while the second process unit requires slightly alkaline water, then ensuring the pH difference between the first and second filtered waters is greater than zero will determine that the secondary solution to be added is alkaline. However, the strength and type of alkaline solution selected must be carefully determined based on the specific requirements of the preceding and subsequent processes to ensure that the overall water quality meets the requirements.

[0113] Determining the amount of the second solution: Similar to determining the amount of the first solution, calculations must be comprehensive and take into account multiple factors. Consider the inlet flow rate of the secondary filtration unit (here, the inlet water is the first filtered water after the primary filtration), the pH requirements of the preceding and subsequent process units, and the concentration of the selected second solution. Through scientific chemical calculations and practical experience, the second solution amount can be accurately determined to ensure that the pH of the water output from the secondary filtration unit meets the requirements of the second process unit.

[0114] Determining the Type of the Third Solution: The type of the third solution is determined based on the first, second, and third pH requirements. Since the third filtered water output by the three-stage filtration system will be directly supplied to the third process unit, and to ensure the overall pH balance of the water quality and compatibility of each process throughout the production process, it is necessary to comprehensively weigh the differences and correlations between the requirements of the three process units. For example, if the first and second process units have relatively loose pH requirements, but the third process unit has extremely strict and neutral pH requirements, then the three-stage filtration system must select an appropriate pH adjustment solution to accurately adjust the pH of the second filtered water after the first two stages of filtration and the solution adjustment to a neutral state that meets the requirements of the third process unit.

[0115] Determine the amount of the third chemical solution: A rigorous calculation is performed to determine the amount of the third chemical solution, taking into account the water 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. This ensures that the pH of the water ultimately delivered to the third process unit fully meets its production process requirements, avoiding adverse effects on the quality of the package substrate due to inappropriate pH.

[0116] In some optional embodiments, the method further includes: obtaining a first cleaning water pressure and a first water supply volume of the first process unit, a second cleaning water pressure and a second water supply volume of the second process unit, and a third cleaning water pressure and a third water supply volume of the third process unit; determining a first power of the first secondary water pump according to the first cleaning water pressure, so that the first secondary 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 of the first multi-way valve according to the first water supply volume, so that the first secondary water pump provides the first filtered water of the first water supply volume to the first process unit through the first pipeline; determining a second power of the second secondary water pump according to the second cleaning water pressure, so that the second secondary water pump The second filtered water at the second washing water pressure is provided 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 secondary water pump provides 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 secondary water pump is determined according to the third washing water pressure, so that the third secondary water pump provides the third filtered water at the third washing 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 secondary water pump provides 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 cleaning requirements, and cleaning water pressure directly impacts cleaning effectiveness. For example, processes with stubborn surface stains or requiring the removal of fine particles may require higher cleaning water pressure to ensure the impact of the water flow, effectively flushing away impurities. On the other hand, processes that are sensitive to substrate surface damage and prone to damage require lower cleaning water pressure. Obtaining the first cleaning water pressure for the first process unit, the second cleaning water pressure for the second process unit, and the third cleaning water pressure for the third process unit is crucial for determining the optimal water pressure conditions for achieving the desired cleaning effect in each process unit, thus serving as a basis for adjusting pump power and other operations. Water supply is also crucial for the smooth progress of the process and cleaning quality. A sufficient water supply ensures a continuous and thorough cleaning process, avoiding incomplete cleaning due to insufficient water. Different processes have varying water supply requirements due to factors such as substrate size, cleaning area, and cleaning method. Accurately determining the first, second, and third water supply quantities facilitates precise allocation of water resources, ensuring that each process unit receives the water it needs to clean.

[0118] Pump power is closely related to the water pressure it can provide. According to the principles of fluid dynamics, a pump's impeller rotates to generate work on the water, generating energy and generating a certain pressure, enabling water to be transported through the pipeline and meet the required pressure. For the first secondary water pump, to provide filtered water that meets the first cleaning pressure through the first pipeline to the first process unit, the pump power must be determined based on the specific value of the first cleaning pressure. Higher cleaning pressure requirements require greater pump power output, which in turn requires higher power. The required first power of the first secondary water 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 head-to-power conversion formula), combined with factors such as the target first cleaning pressure and the resistance characteristics of the pipeline system. The pump's power is then adjusted using a speed control device (such as a variable frequency drive) to ensure that the pump's actual output pressure meets the required first cleaning pressure, ensuring that the first process unit receives cleaning water at the appropriate pressure.

[0119] Similar to determining the first power of the first secondary water pump, the second power of the second secondary water pump is determined based on the second cleaning water pressure of the second process unit, and the third power of the third secondary water 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, by analyzing pump performance, pipeline conditions, and relevant hydraulic principles, the pump power is calculated and adjusted to ensure that the second secondary water pump can provide the second filtered water meeting the second cleaning water pressure requirements for the second process unit, and the third secondary water pump can provide the third filtered water meeting the third cleaning water pressure requirements for the third process unit. Each process unit can perform cleaning operations under appropriate water pressure conditions, ensuring cleaning results and production quality.

[0120] The opening of a multi-way valve directly affects the water flow rate through it. In a piping system, when a water pump provides a certain amount of power to move water, the multi-way valve acts as an adjustable "checkpoint." By varying its opening, the cross-sectional area of ​​the water flow can be controlled, thereby varying the water flow rate. For the first multi-way valve, to ensure that the first secondary water pump provides the first filtered water supply to the first process unit through the first pipeline at the first water supply rate, the opening of the first multi-way valve must be precisely determined based on the first water supply rate. A larger opening increases the water flow rate; a smaller opening decreases the water flow rate. The first opening of the first multi-way valve can be determined through calculation or empirical judgment based on the valve's flow characteristic curve (different valve types have corresponding flow-to-opening curves), the target first water supply rate, and other piping system parameters (such as pipe diameter and flow rate). In practice, the opening of the first multi-way valve can be precisely controlled using devices such as electric actuators to achieve the desired first water supply rate, ensuring a stable and appropriate amount of cleaning water for the first process unit.

[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, ensuring that the second secondary water pump provides the second filtered water supply to the second process unit via the secondary pipeline. The third opening of the third multi-way valve is determined based on the third water supply, ensuring that the third secondary water pump provides the third filtered water supply to the third process unit at the required third water supply via the tertiary pipeline and / or the third main pipeline. By precisely adjusting the opening of the multi-way valve, the water supply to each process unit is precisely controlled, meeting the specific water volume requirements of different processes during the cleaning process.

[0122] In some optional embodiments, the recovery module includes a water collection tank, a double-layer screen and a water absorption well. The recycled water is obtained after the cooling water is transported to the recovery module, including: transporting the cooling water to the water collection tank so that the water collection tank precipitates the cooling water to obtain the first intermediate water; transporting the first intermediate water to the double-layer screen so that the double-layer screen filters impurities to obtain the second intermediate water; and transporting the second intermediate water to the water absorption well for storage to obtain the recycled water.

[0123] Specifically, the water collection tank is a relatively large container with a certain buffering function, which can receive and temporarily store cooling water, create conditions for subsequent sedimentation treatment, and ensure that the subsequent recycled water removes some impurities before entering the next process, thereby improving the overall water quality. When the cooling water enters the water collection tank, due to the reduction in water flow rate, some suspended particulate impurities with a large specific gravity and insoluble in water carried in the water will gradually settle to the bottom of the water collection tank under the action of gravity. This process is called precipitation. For example, impurities such as mud, metal chips, etc. that may be contained in the cooling water will accumulate at the bottom of the pool after a certain period of precipitation, making the upper layer of water (i.e., the first intermediate water) relatively clear, reducing the burden on the subsequent filtration link, and preliminarily improving the water quality, which is convenient for subsequent further treatment.

[0124] Although the first intermediate water after sedimentation in the collection tank has removed some large particles of suspended impurities, it may still contain smaller particles and floating debris. It is transported to the double-layer screen in order to utilize the filtering function of the double-layer screen to intercept and remove these remaining impurities more finely, thereby further purifying the water quality. The double-layer screen is composed of screen plates with different apertures. The aperture of the upper screen is larger, and it is mainly used to intercept larger floating objects, leaves, plastic fragments and other impurities visible to the naked eye in the water, preventing these debris from entering the lower screen and causing blockage; the aperture of the lower screen is relatively small, which can further remove smaller particles in the water, such as remaining fine sand and algae. Through this layered filtration method, after the first intermediate water passes through the double-layer screen, the impurities in the water are effectively intercepted, and the second intermediate water obtained is further improved in purity, meeting the requirements of subsequent recycling.

[0125] The second intermediate water filtered by the double-layer screen is transported to the water absorption well, which plays a role of storage and collection. It can stably accommodate the water that has been treated previously, providing a stable water source for the circulating water pump, ensuring that the entire water circulation system has continuous and relatively clean water available for extraction and recycling. At this time, the water stored in the water absorption well is defined as recycled water. The water level and water quality of the water absorption well have a great impact on the normal operation of the circulating water pump; keep enough recycled water in the water absorption well, and after filtering through the water collection tank and double-layer screen, ensure that the water quality is clean and free of excessive impurities, thereby ensuring that the circulating water pump can absorb water smoothly, avoiding problems such as water pump wear and blockage caused by the inhalation of water containing impurities. At the same time, it also helps to maintain a stable water supply pressure and flow of the entire circulating water system, so that each process unit can obtain water according to the established requirements, ensuring the smooth progress of the packaging substrate production process.

[0126] Implementation of the embodiments of the present invention includes the following beneficial effects: The embodiments of the present invention provide a water circulation method for packaging substrate production, including: obtaining water use information of the packaging substrate production module, the water use information representing the real-time water demand of one or more processes; determining the pumping flow rate of the circulating water pump based on the water use information; obtaining 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 pumping flow rate and the head, so that the circulating water pump transports the recycled water of the recycling module to the circulating water filtration unit for multi-stage filtration, and transports the recycled water with different filtration degrees to several process units of the packaging substrate production module, different process units indicating different processes; controlling the packaging substrate production module to recycle the used water of several process units to the cooling module for cooling to obtain cooling water; controlling the cooling module to transport the cooling water to the recycling module to obtain recycled water. Through the water usage information of the packaging substrate production module, the circulating water is filtered and transported to multiple water-consuming process units of the packaging substrate production module to meet the water needs of the process units. After use, the water is transported to the cooling tower for cooling and stored in the recovery module to be extracted by the subsequent circulating water pump, thereby improving the utilization rate of water resources and avoiding environmental pollution caused by directly discharging wastewater.

[0127] Secondly, refer to Figure 3 The embodiment of the present invention further provides a water circulation system for producing a packaging substrate, comprising:

[0128] The first module is used to obtain 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;

[0129] The second module is used to determine the pumping flow rate of the circulating water pump according to the water use information;

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

[0131] A fourth module is used to determine the head of the circulating water pump according to the pipeline information;

[0132] a fifth module, configured to determine operating parameters of the circulating water pump based on the pump water flow rate and lift, so that the circulating water pump delivers recycled water from the recovery module to a circulating water filtration unit for multi-stage filtration, and delivers recycled water with different filtration degrees to a plurality of process units of the package substrate production module, where different process units indicate different processes;

[0133] A sixth module is configured to control the package substrate production module to recycle the used water of the plurality of process units to a cooling module for cooling to obtain cooling water;

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

[0135] It can be seen that the contents of the above method embodiments are all applicable to the present system embodiments. The functions specifically implemented by the present system embodiments 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.

[0136] On the other hand, an embodiment of the present invention provides a controller, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the above method when executing the computer program.

[0137] It can be seen that the contents of the above method embodiments are all applicable to the present controller embodiment. The functions specifically implemented by the present 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, an embodiment of the present invention further provides a storage medium, which is a computer-readable storage medium, and the storage medium stores a computer program, which, when executed by the processor, implements the water circulation method for producing the above-mentioned packaging substrate. The memory, as a non-transient computer-readable storage medium, can be used to store non-transient software programs and non-transient computer executable programs. In addition, the memory may include a high-speed random access memory, and may also include a non-transient memory, such as at least one disk storage device, a flash memory device, or other non-transient solid-state storage device. In some embodiments, the memory may optionally include a memory remotely located relative to the processor, and these remote memories may be connected to the processor via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and a combination thereof. The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and may be located in one place, or may be distributed to multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the present embodiment.

[0139] In some optional embodiments, the functions / operations mentioned in the block diagram may not occur in the order mentioned in the operation diagram. For example, depending on the functions / operations involved, the two boxes shown in succession may actually be executed substantially simultaneously or the boxes can sometimes be executed in reverse order. In addition, the embodiments presented and described in the flow chart of the present application are provided in an exemplary manner for the purpose of providing a more comprehensive understanding of the technology. The disclosed method is not limited to the operations and logic flows presented herein. Optional embodiments are contemplated in which the order of the various operations is changed and the sub-operations described as a part of a larger operation are performed independently.

[0140] In addition, although the present application is described in the context of functional modules, it should be understood that, unless otherwise stated, 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 separate physical devices or software modules. It is also understood that a detailed discussion of the actual implementation of each module is not necessary for understanding the present application. More specifically, given the properties, functions, and internal relationships of the various functional modules in the devices disclosed herein, the actual implementation of the module will be understood within the routine skills of an engineer. Therefore, a person skilled in the art can implement the present application as set forth in the claims using ordinary techniques without undue experimentation. It is also understood that the specific concepts disclosed are merely illustrative and are not intended to limit the scope of the present application, which is determined by the full scope of the appended claims and their equivalents.

[0141] In the above description of this specification, reference to the terms "one embodiment / example," "another embodiment / example," or "certain embodiments / examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples.

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

[0143] The above is a specific description of the preferred implementation of the present application, but the present application is not limited to the embodiments. Those skilled in the art can make various equivalent modifications or substitutions without violating the spirit of the present application. These equivalent modifications or substitutions are all included in the scope defined by the claims of the present application.

Claims

1. A water circulation method for producing a packaging substrate, characterized in that: Applied to a water circulation system, the water circulation system includes a recovery module, a circulation filtration module, a package substrate production module and a cooling module, the circulation filtration module includes a circulation water pump and a circulation water filtration unit, and the water circulation method for package substrate production includes: Acquire water usage information of the packaging substrate production module, where the water usage information represents real-time water demand of one or more processes; determining the pumping flow rate of the circulating water pump according to the water use information; Obtaining pipeline information between the packaging substrate production module and the circulating water pump; Determining the head of the circulating water pump according to the pipeline information; determining the operating parameters of the circulating water pump according to the pump water flow rate and head, so that the circulating water pump transports the recycled water from the recycling module to the circulating water filtration unit for multi-stage filtration, and transports the recycled water with different filtration degrees to several process units of the packaging substrate production module, where different process units indicate different processes; Controlling the packaging substrate production module to recycle the used water of the plurality of process units to the cooling module for cooling to obtain cooling water; The cooling module is controlled to transport the cooling water to the recovery module to obtain the recovered water.

2. The method according to claim 1, characterized in that Determining the head of the circulating water pump according to the pipeline information includes: Determine the pipeline size information, pipeline curvature, and pipeline smoothness between the packaging substrate production module and the circulating water pump according to the pipeline information; Determining a pipeline resistance loss coefficient according to the pipeline size information, the pipeline curvature, and the pipeline smoothness; The lift is determined according to the pipeline resistance loss coefficient.

3. The method according to claim 1, characterized in that The circulating water filtration unit includes a primary filtration device, a secondary filtration device and a tertiary filtration device. A first secondary water pump and a first multi-way valve are provided on the first main pipeline between the primary filtration device and the secondary filtration device. The first multi-way valve is connected to the first process unit of the packaging substrate production module through the first pipeline. A second secondary water pump and a second multi-way valve are provided on the second main pipeline between the secondary filtration device and the tertiary filtration device. The second multi-way valve is connected to the second process unit of the packaging substrate production module through the second pipeline. A third secondary water pump and a third multi-way valve are provided on the third main pipeline between the tertiary filtration device and the packaging substrate production module. The third multi-way valve is connected to the 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 transports recovered water with different filtration degrees to several process units of the packaging substrate production module, including: Mechanically filtering the recovered water through the primary filtering device to obtain first filtered water; delivering the first filtered water to the first process unit and / or the first-stage filtering device through the first secondary water pump, the first multi-way valve, the first pipeline and the first main pipeline; The first filtered water is filtered through the secondary filtering device with activated carbon to obtain second filtered water; delivering the second filtered water to the second process unit and / or the tertiary filtration device through the second secondary water pump, the second multi-way valve, the secondary pipeline and the second main pipeline; The third filtered water is obtained by precisely filtering the second filtered water through the three-stage filtering device; The third filtered water is delivered to the third process unit through the third secondary water pump, the third multi-way valve, the third pipeline and the third main pipeline.

4. The method according to claim 3, characterized in that The water circulation system further includes a medicine supply module, wherein the medicine supply module is respectively connected to the primary filter device, the secondary filter device, and the tertiary filter device. The method further includes: Acquire 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 type and amount of the first liquid medicine delivered by the medicine supply module to the primary filtration device according to the first pH requirement information; determining the type and amount of the second liquid medicine delivered by the medicine supply module to the secondary filtration device according to the first pH requirement information and the second pH requirement information; The type and amount of the third liquid medicine delivered by the medicine supply module to the three-stage filtration device are determined according to the first pH requirement information, the second pH requirement information, and the third pH requirement information.

5. The method according to claim 2, characterized in that The determining of the pipeline resistance loss coefficient according to the pipeline size information, the pipeline curvature and the pipeline smoothness includes the formula: Among them, K represents the pipeline resistance loss coefficient, a, b, and c represent constant coefficients of different values, ν represents the water flow velocity in the pipeline, γ represents the viscosity of water, ρ represents the density of water, ω represents the pipeline curvature, δ represents the pipeline smoothness, T represents the water temperature, L represents the pipeline length, and d represents the inner diameter of the pipeline.

6. The method according to claim 1, characterized in that After determining the operating parameters of the circulating water pump according to the pump water flow rate and head, the method further includes: Obtaining the pipeline pressure between the packaging substrate production module and the circulating water pump; When the pipeline pressure is greater than a preset pressure, adjusting the operating parameters so that the pipeline pressure is equal to the preset pressure; When the pipeline pressure is less than a preset pressure, obtaining 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 occurs, 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 leakage occurs in the pipeline, the operating parameters are adjusted so that the pipeline pressure is equal to the preset pressure.

7. The method according to claim 3, characterized in that The method further comprises: Obtaining a first washing water pressure and a first water supply volume of the first process unit, a second washing water pressure and a second water supply volume of the second process unit, and a third washing water pressure and a third water supply volume of the third process unit; determining a first power of the first secondary water pump according to the first cleaning water pressure, so that the first secondary water pump provides first filtered water at the first cleaning water pressure to the first process unit through the first pipeline; determining a first opening of the first multi-way valve according to the first water supply volume, so that the first secondary water pump provides the first filtered water of the first water supply volume to the first process unit through the first pipeline; determining a second power of the second secondary water pump according to the second cleaning water pressure, so that the second secondary water pump provides second filtered water at the second cleaning water pressure to the second process unit through the second pipeline; determining a second opening of the second multi-way valve according to the second water supply volume, so that the second secondary water pump provides the second filtered water of the second water supply volume to the second process unit through the second pipeline; determining a third power of the third secondary water pump according to the third cleaning water pressure, so that the third secondary 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 of the third multi-way valve is determined according to the third water supply volume, so that the third secondary 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.

8. The method according to claim 1, characterized in that The recovery module includes a water collection tank, a double-layer grid and a water absorption well. The cooling water is transported to the recovery module to obtain recycled water, including: transporting the cooling water to the water collection tank, so that the cooling water is precipitated in the water collection tank to obtain first intermediate water; The first intermediate water is transported to the double-layer grid, so that the double-layer grid filters impurities to obtain the second intermediate water; The second intermediate water is transported to the water absorption well for storage to obtain recycled water.

9. A water circulation system for producing packaging substrates, characterized in that: include: The first module is used to obtain 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; The second module is used to determine the pumping flow rate of the circulating water pump according to the water use information; The third module is used to obtain the pipeline information between the packaging substrate production module and the circulating water pump; A fourth module is used to determine the head of the circulating water pump according to the pipeline information; a fifth module, configured to determine operating parameters of the circulating water pump based on the pump water flow rate and lift, so that the circulating water pump delivers recycled water from the recovery module to a circulating water filtration unit for multi-stage filtration, and delivers recycled water with different filtration degrees to a plurality of process units of the package substrate production module, where different process units indicate different processes; A sixth module is configured to control the package substrate production module to recycle the used water of the plurality of process units to a cooling module for cooling to obtain cooling water; The seventh module is used to control the cooling module to transport the cooling water to the recovery module to obtain recycled water.

10. 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 implements the method according to any one of claims 1 to 8 when executing the computer program.

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