Multi-channel array ultraviolet advanced oxidation device for preventing fouling of water pipelines

Abstract

This invention relates to the field of biofouling control technology for water pipelines, and particularly to a multi-channel array ultraviolet advanced oxidation device for controlling biofouling in water pipelines, comprising: a pre-filter with dual channels and basket-type design, used for single-channel filtration of adult clam shells in the target risk pipeline, and switching to a backup channel when blockage reaches a limit; an array of ultraviolet distribution pipes for evenly distributing water flow to extend the total killing time; an oxidant-assisted cleaning module for dispensing environmentally friendly agents; an array of ultraviolet killing pipes for directly killing clam larvae and adult shells with ultraviolet light, and removing clam larvae and byssal proteins attached to the pipes by activating environmentally friendly agents with ultraviolet light; and a numerical control system for controlling the flow rate of the ultraviolet distribution pipes, the start and stop of the ultraviolet killing pipes, and the dosage of the oxidant-assisted cleaning module. This solves the problems of existing methods in providing comprehensive, efficient, non-stop maintenance, and environmentally friendly control of biofouling in pressurized water pipelines from clam larvae and adult shells.

Description

Technical Field

[0001] This invention relates to the field of biofouling prevention and control technology for water pipelines, and in particular to a multi-channel array ultraviolet advanced oxidation device for preventing biofouling of water pipelines. Background Technology

[0002] The swamp clam (Limnoperna fortunei) is a highly invasive fouling organism. Swamp clam biofouling poses a great threat to major water conveyance projects in my country and even globally, resulting in serious engineering pollution and economic losses.

[0003] Biofouling clams can adhere densely to the inner walls of water pipelines, clogging them, reducing water transport efficiency, causing production stoppages and safety accidents. Their metabolic activities and byssal erosion exacerbate pipeline corrosion, affecting the structural safety of engineering facilities. Furthermore, the reproduction, metabolism, excretion, and death of clams consume large amounts of dissolved oxygen and release organic carbon and ammonia nitrogen, causing water pollution and seriously threatening the quality of water transported through pipelines. Developing biofouling control technology for clams is a crucial part of solving the ten major scientific problems in the Yangtze River Basin. Biofouling control technology for clams mainly includes source control, physical control, biological control, chemical control, and integrated pest management. Physical and chemical control technologies are suitable for water pipeline systems: physical control mainly utilizes sedimentation and adsorption tanks to separate clam larvae and adults from the water, uses turbulent flow fields to kill clam larvae, and uses optical ultraviolet light to destroy the genetic material of clams or optical induction to drive them away from attachment. Chemical control mainly uses strong oxidizing chemicals or biotoxic agents to kill clams, or uses surfactants or paints to reduce the adhesion of clams to the surface of hydraulic structures. Physical control methods typically do not involve the use of chemical agents, offering advantages such as environmental friendliness, sustainability, and flexible control. However, the killing field of physical control technologies is weakened by water flow, resulting in relatively low killing efficiency. Chemical control methods, enhanced by potent oxidants, offer significant control effects, rapid results, and surface cleanliness. However, the application of chemical agents conflicts with ecological environmental protection. Ultraviolet-coupled advanced oxidation technology is a more environmentally friendly, economical, and efficient remediation method.

[0004] Existing advanced ultraviolet (UV) oxidation water treatment mainly relies on low-pressure UV sterilization and chemical advanced oxidation fields to kill pathogenic microorganisms and organic matter in the water. However, heavy-duty water conveyance projects are characterized by high single-pipe flow velocities. The UV sterilization dose required for plankton, such as clam larvae, is dozens of times higher than that for common bacteria. Existing UV advanced oxidation water treatment technologies are difficult to handle high-speed water flow conditions. Advanced oxidation technologies are mainly effective in treating viruses, bacteria, and organic pollutants in water. However, clam larvae can control their double shells to isolate the chemical sterilization field from their tissues, thus resulting in lower advanced oxidation efficiency.

[0005] Therefore, there is an urgent need for a pressurized water control system that can comprehensively, efficiently, and environmentally friendly prevent fouling by clam larvae and adult clams in water pipelines without shutting down the system. Summary of the Invention

[0006] This invention provides a multi-channel array ultraviolet advanced oxidation device for preventing fouling of clam larvae in water pipelines, which solves the problem that existing methods are difficult to use for comprehensive, efficient and environmentally friendly prevention and control of fouling by clam larvae and adult clam larvae in water pipelines.

[0007] A first aspect of this invention provides a multi-channel array ultraviolet advanced oxidation device for preventing fouling of clams in water pipelines, comprising: a pre-filter with dual channels, the pre-filter including a single channel and a backup channel, used to filter clams in the target risk pipeline through the single channel and switch to the backup channel when the blockage reaches a limit; an array of ultraviolet water distribution pipes, placed vertically relative to the target risk pipeline flow, used to adjust the activation and flow rate of the distribution pipes according to the incoming water conditions to evenly distribute the water flow; and an oxidant-assisted cleaning module, the oxidant-assisted cleaning module being disposed in the pre-filter. A dual-channel basket filter and an array of ultraviolet water distribution pipes are placed between the pre-filter and the ultraviolet water distribution pipes for dispensing an environmentally friendly agent; an array of ultraviolet killing pipes, connected to the array of ultraviolet water distribution pipes, are used to form a dense ultraviolet killing zone to kill clam larvae and adult clams, and to generate free radicals by activating the environmentally friendly agent with ultraviolet light to remove clam larvae and clam byssal proteins attached to the pipes; a numerical control system is used to control the flow rate of the array of ultraviolet water distribution pipes, the start and stop of the array of ultraviolet killing pipes, and the dosage of the oxidant-assisted cleaning module.

[0008] Optionally, the pre-filter dual-channel basket filter is equipped with a filter screen, the size of which is 5mm.

[0009] Optionally, the environmentally friendly agent includes a gaseous oxidizing agent and a liquid oxidizing agent, wherein the gaseous oxidizing agent is ozone and the liquid oxidizing agent is hydrogen peroxide.

[0010] Optionally, the array of ultraviolet killing tubes includes multiple ultraviolet killing tubes, and each ultraviolet killing tube contains a high-transmittance ultraviolet quartz glass tube, which contains a medium-pressure ultraviolet lamp.

[0011] Optionally, the extinguishing parameter of the medium-pressure ultraviolet lamp is 200W.

[0012] Optionally, it also includes:

[0013] The ultraviolet water pipe is connected to the array of ultraviolet sterilization tubes and is used to collect the water flow treated by the array of ultraviolet sterilization tubes.

[0014] A second aspect of this invention provides a method for preventing fouling of water pipelines using multi-channel array ultraviolet advanced oxidation, comprising the following steps: designing and installing a pre-filter with dual channels (likely referring to a basket-type filter) based on the target risk pipeline and target site space; sequentially connecting the pre-filter with arrayed ultraviolet water distribution pipes and high-efficiency ultraviolet sterilization pipe arrays, and integrating a numerical control system with an environmentally friendly oxidant-assisted cleaning module; activating the pre-filter with dual channels (likely referring to a basket-type filter) to check and clean adult water clams in the target risk pipeline through a single-channel and backup channel switching mechanism; and adjusting the method according to the inflow water conditions and target requirements. The system aims to adjust the number and flow distribution of the array of ultraviolet water distribution pipes through the numerical control system to evenly distribute the incoming flow to each ultraviolet killing pipe; to add an environmentally friendly agent between the pre-filter and the ultraviolet water distribution pipes through the oxidant-assisted cleaning module, and to adjust the dosage of the environmentally friendly agent through the numerical control system; to form a dense ultraviolet killing zone using the array of ultraviolet killing pipes to kill clam larvae and adult clams, and to generate free radicals by activating the environmentally friendly agent through ultraviolet light to kill clam larvae and clam byssal proteins in the incoming flow within the ultraviolet killing section.

[0015] A third aspect of the present invention provides an electronic device, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the multi-channel array ultraviolet advanced oxidation method for preventing fouling of water pipes as described in the above embodiments.

[0016] A fourth aspect of the present invention provides a computer program product, which, when executed by a processor, implements the above-described method for preventing fouling of water pipes using multi-channel array ultraviolet advanced oxidation.

[0017] A fifth aspect of the present invention provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the above-described method for preventing fouling of water pipelines using multi-channel array ultraviolet advanced oxidation.

[0018] The multi-channel array ultraviolet advanced oxidation device for preventing fouling of clam larvae in water pipelines proposed in this invention controls the flow path, the activation status of the ultraviolet lamps, and the addition of oxidant. It filters large-sized adult clam larvae through a basket-type filter, kills floating clam larvae in a UV killing field, kills clam larvae in optically blind spots through an advanced ultraviolet oxidation field, and removes organic impurities such as byssal threads from the incoming flow to clean the inner wall of the pipeline. This thoroughly eliminates clam larvae throughout their entire life cycle in the pipeline water under high-flow conditions. By integrating multiple technologies such as multi-channel filtration, intelligent diversion, efficient ultraviolet killing, and oxidant-assisted removal, it achieves comprehensive, efficient, and environmentally friendly prevention and control of clam larvae and adult clam fouling in water pipelines, possessing significant economic and social value and providing strong protection for the safe operation of water pipelines.

[0019] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein:

[0021] Figure 1 This is a structural connection diagram of a multi-channel array ultraviolet advanced oxidation device for preventing fouling of water pipelines provided in an embodiment of the present invention;

[0022] Figure 2 The diagram shows a layout of a multi-channel array ultraviolet advanced oxidation device for preventing fouling of water pipes provided in an embodiment of the present invention, wherein (a) is a front view, (b) is a right view, (c) is a left view, (d) is a top view, and (e) is a three-dimensional view.

[0023] Figure 3 The graph shows the kill rate of clam larvae during the stasis period under the conditions of the example and the dose of ultraviolet radiation.

[0024] Figure 4 This is a flowchart of the multi-channel array ultraviolet advanced oxidation method for preventing fouling of water pipelines provided in an embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram of the structure of the electronic device provided in an embodiment of the present invention. Detailed Implementation

[0026] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0027] The following description, with reference to the accompanying drawings, describes an embodiment of the multi-channel array ultraviolet advanced oxidation device for preventing fouling of water conveyance pipelines.

[0028] Figure 1 This is a block diagram of the multi-channel array ultraviolet advanced oxidation device for preventing fouling of water pipelines provided in an embodiment of the present invention.

[0029] like Figure 1 As shown, the multi-channel array ultraviolet advanced oxidation device for preventing fouling of water clams in the water pipeline includes: a pre-filter with a dual-channel basket type 101, an array ultraviolet water distribution pipe 102, an oxidant-assisted cleaning module 103, an array ultraviolet sterilization pipe 104, a numerical control system 105, and an ultraviolet water distribution pipe 106.

[0030] The pre-filter, a dual-channel basket-type filter 101, features a unique dual-channel design, including a single channel and a backup channel. The single channel filters adult clam shells from the target risk pipe, and the backup channel switches when blockage reaches a limit. An array of ultraviolet (UV) water distribution pipes 102 is placed vertically relative to the target risk pipe flow, allowing for adjustments to pipe activation and flow rate based on engineering requirements or inflow conditions to evenly distribute water. An oxidant-assisted cleaning module 103 is positioned between the pre-filter and the UV distribution pipes, dispensing environmentally friendly chemicals between them. An array of UV killing pipes 104 connects to the UV distribution pipes 102, forming a dense UV killing zone to kill clam larvae and adult shellfish. UV-activated environmentally friendly chemicals generate free radicals to remove clam larvae and byssal proteins attached to the pipe. The numerical control system 105 is used to control the flow rate of the array ultraviolet water distribution pipe 102, the start / stop of the array ultraviolet sterilization pipe 104, and the dosage of the oxidant-assisted cleaning module 103 according to engineering conditions. The ultraviolet water distribution pipe 106 is connected to the array ultraviolet sterilization pipe 104 and is used to collect the water treated by the array ultraviolet sterilization pipe 104 and discharge it.

[0031] Specifically, the pre-filter dual-channel basket filter 101 ensures unobstructed pipeline flow through a single-channel operation and backup channel switching mechanism. When blockage is detected, maintenance can be performed without shutting down the system, automatically switching channels and facilitating the cleaning of large-sized adult clams. The adjustable-flow array UV water distribution pipe 102 is vertically placed, flexibly adjusting the pipe activation and flow rate according to the incoming water conditions to achieve a balanced distribution of water flow to the array UV sterilization pipe, ensuring consistent treatment results. The oxidant-assisted cleaning module 103 has an oxidant inlet between the pre-filter dual-channel basket filter 101 and the array UV water distribution pipe 102, where an environmentally friendly agent (ozone O3 or hydrogen peroxide H2O2) is added. After being activated by the medium-pressure UV light in the array UV sterilization pipe 104, it continuously activates and produces highly oxidizing hydroxyl radicals, effectively removing organic impurities, especially clam byssal protein, adhering to the quartz glass wall and the inner wall of the pipe, maintaining the effective operation of the device, and extending the life of the quartz tube and maintenance cycle. The high-efficiency ultraviolet (UV) sterilization tube array 104 is equipped with multiple UV sterilization tubes, each containing a high-transmittance UV-sensitive quartz glass tube. A long-lasting medium-pressure UV lamp is installed inside the high-transmittance UV-sensitive quartz glass tube, forming a dense UV sterilization area. This design allows for maintenance of the UV lamps and visual inspection system status without shutting down the system, improving maintenance convenience. The numerical control system 105 precisely controls the array's UV distribution pipe 102 to regulate the flow rate within it. The calculation device can pre-calculate the required number of arrays and flow rate control under different operating conditions, especially ensuring that all sizes of clams (including larvae to adults) are effectively sterilized, completely preventing clam contamination. The array's UV sterilization tubes 105 are connected to the opposite UV external water distribution pipe 106, ensuring that the treated water flow meets engineering requirements, guarantees the design flow rate, and ensures water supply quality and stability.

[0032] In some embodiments, two sets of pre-filters with dual channels 101 are generally selected. Each pre-filter with dual channels 101 is equipped with a filter screen with a size of 5mm. The large-sized clams and pipe flow are physically separated by the size sieving principle of the pre-filters with dual channels.

[0033] In some embodiments, the array of ultraviolet water distribution pipes 102 decomposes the high-speed, high-flow mainstream into multiple low-flow, low-velocity sub-streams, prolonging the stagnation time of the water flow in the killing field, thereby extending the killing dose received by the mussels in the killing field. In particular, it controls the flow rate and velocity of each killing pipe to be the same, so as to uniformly adjust the ultraviolet lamp activation parameters in the high-efficiency ultraviolet killing pipe array 104. Among them, the high-speed, high-flow mainstream refers to a flow velocity greater than 1 m / s, a load pressure greater than 0.4 MPa, and an ultraviolet lamp activation parameter of 200 W.

[0034] In some embodiments, an array of ultraviolet killing tubes 104 is horizontally inserted into a hollow quartz tube, into which a medium-pressure ultraviolet lamp is placed. The hollow quartz tube effectively isolates the pipes and the ultraviolet lamp, allowing maintenance without shutdown. A low-UV absorption quartz tube is selected to improve light transmission efficiency. Medium-pressure ultraviolet light is chosen because water absorbs low-pressure ultraviolet light more strongly than medium-pressure ultraviolet light, while high-pressure ultraviolet light cannot effectively kill aquatic organisms. In the array of ultraviolet killing tubes 104, the swamp clam dies under two conditions: firstly, the core molecular structures of the swamp clam, DNA and RNA, are damaged under ultraviolet light, leading to weakened vitality and further death. The environmentally friendly agents added to the oxidant-assisted cleaning module 103 include gaseous oxidants (e.g., O3) and liquid oxidants (H2O2). Under the action of the ultraviolet light field, these agents are activated to generate highly oxidizing free radicals. These free radicals damage the external structure and internal genetic components of the swamp clam, molecularly destroying its life. When the incoming flow contains a large amount of byssal protein, the molecular structure of byssal protein readily binds to the quartz surface, leading to the failure of the quartz tube's optical performance. Through the oxidant-assisted cleaning module 103, hydroxyl radicals activated by the ultraviolet light field additionally participate in the decomposition of byssal protein, the main fouling protein of the clam. The byssal threads adhere to the inner wall of the tube primarily through the Mfp protein at the bottom layer of the byssal protein group. The dopamine groups of the Mfp protein preferentially react under the action of hydroxyl radicals. As the dopamine groups are destroyed, the byssal structure is disintegrated in the advanced ultraviolet oxidation field. Through this advanced ultraviolet oxidation field, clam fouling in the optical blind zone is controlled, and organic impurities in the incoming flow, especially byssal protein, are cleaned, effectively extending the system's service life and the quartz tube's maintenance cycle.

[0035] The working process of the multi-channel array ultraviolet advanced oxidation device for preventing fouling of water pipelines proposed in this embodiment of the invention is as follows:

[0036] Step one: Based on the size, flow rate requirements, and pressure rating of the target water pipeline, select a suitable steel type (such as stainless steel) to fabricate the filter, pipes, and support structure. Conduct site measurements and plan the layout of the pre-filter dual-channel basket-type filter 101, the array of ultraviolet water distribution pipes 102, the ultraviolet sterilization tube array 104, and the CNC system 105, ensuring sufficient operating space and ease of maintenance. Install two independent filter channels (i.e., the pre-filter dual-channel basket-type filter 101) in the target water pipeline. Each channel is equipped with a basket-type filter screen to capture and remove large impurities in the water, such as clams. Ensure that the two channels can automatically or manually switch during dual-channel flow, achieving a one-in-one standby function.

[0037] Simultaneously, an array of ultraviolet water distribution pipes 102 and a high-efficiency ultraviolet sterilization tube array 104 are arranged, and a numerical control system 105 and an environmentally friendly oxidant-assisted cleaning module 103 are integrated. Specifically, the main pipe of the pre-filter dual-channel basket filter 101 is connected to the incoming flow pipe, and the secondary pipe is connected parallel to the main pipe wall. Based on the treated water flow rate, pipe diameter, and ultraviolet radiation requirements, matching arrays of ultraviolet water distribution pipes 102 are installed, and the high-efficiency ultraviolet sterilization tube array 104 is evenly distributed on the arrays of ultraviolet water distribution pipes 102. This ensures that each ultraviolet sterilization tube can receive water flow evenly, achieving effective sterilization. The numerical control system 105, including a PLC, sensors, actuators, etc., is integrated into the system to achieve intelligent control of the pre-filter dual-channel basket filter 101, the ultraviolet sterilization tube array 104, and the oxidant dosing equipment. An oxidant dispersion and feeding unit (i.e., oxidant auxiliary cleaning module 103) is installed in the connecting pipe between the pre-dual-channel basket filter 101 and the array ultraviolet water distribution pipe 102 to ensure that the oxidant can be evenly dispersed into the water flow.

[0038] Step two: Initialize the pre-filter dual-channel basket filter 101. Through real-time monitoring and intelligent switching mechanisms, ensure the normal switching and rotation of the main and backup channels to handle regular, non-stop maintenance of the pre-filter dual-channel basket filter 101. The pre-filter dual-channel basket filter 101 has a built-in filter screen. Start the pre-filter dual-channel basket filter 101 via the CNC system. Regularly check whether the filter screen is installed correctly, whether there are leaks in the pre-filter dual-channel basket filter 101, and check and clean large-sized clams in the pre-filter dual-channel basket filter 101 to keep the pipeline unobstructed. Install and debug the water quality monitoring sensor to monitor turbidity and medium-pressure ultraviolet absorption coefficient in real time. Set the automatic switching of the main and backup channels according to the preset switching pressure difference and maintenance time OR logic unit. Ensure that when one channel needs maintenance, the other channel can seamlessly take over the work. During maintenance, clean large-sized impurities in the pre-filter dual-channel basket filter 101 and reset the main and auxiliary pipelines.

[0039] Step 3: Based on the incoming water conditions and project requirements, flow sensors can be installed in the array ultraviolet water distribution pipe 102 to monitor the incoming water flow and the flow of each branch pipe in real time. The number of activated array ultraviolet water distribution pipes 102 and the flow valves can be adjusted by the numerical control system 105 to ensure that each ultraviolet sterilization pipe can obtain the flow required by the preset working conditions.

[0040] Step four: Each group of ultraviolet (UV) killing tubes in the UV killing tube array 104 incorporates multiple high-transmittance quartz glass hollow tubes and long-lasting medium-pressure UV lamps according to the engineering plan, providing the material basis for forming a powerful UV killing field. When the UV killing tube array 104 is working, it generates a powerful UV killing light field. The DNA and RNA structures of planktonic clam larvae and small adult shellfish or other aquatic organisms not separated by the pre-filter dual-channel basket filter 101 are damaged by UV radiation, resulting in a killing effect when the dose is reached. The UV killing tube array 104 is designed for easy maintenance and repair, allowing for the replacement and maintenance of UV lamps without interrupting water supply and killing operations, ensuring continuous and efficient system operation.

[0041] Step 5: Input parameters such as flow rate, water quality, clam biofouling source mode, clam full-size density, and UV killing constant to the CNC system 105. The CNC system 105 automatically adjusts parameters such as flow control, UV lamp activation, and oxidant dosage based on its built-in calculation library and real-time monitoring data to ensure efficient operation and maintenance warnings. When a UV lamp malfunctions in the array UV killing tube 104, the CNC system 105 adjusts the UV killing tube array 104 to close the faulty path and open the bypass redundant branch pipe, allowing maintenance personnel to repair the UV killing tube array 104 without shutting down the system. Intelligent management ensures the complete eradication of clam biofouling throughout its entire life cycle, preventing downstream clam biofouling.

[0042] Step six involves installing a dispersion feeding unit (i.e., oxidant-assisted cleaning module 103) between the pre-filter dual-channel basket-type filter 101 and the array UV water distribution pipe 102, allowing the addition of an environmentally friendly oxidant. After addition, the oxidant mixes thoroughly with the water flow and is evenly distributed through the array UV water distribution pipe 102. As it flows through the UV sterilization section, it is activated by the medium-pressure UV lamps in the array UV sterilization pipe 104, generating highly oxidizing free radicals. These free radicals, represented by hydroxyl radicals, possess extremely high reactivity and can rapidly react with organic impurities adhering to the quartz glass wall and the inner wall of the pipe, decomposing them into harmless small molecules. This effectively removes organic impurities adhering to the quartz glass wall and the inner wall of the pipe, especially clam byssal protein. Even stubborn stains such as clam byssal protein can be effectively destroyed, causing them to detach from the surface. This step maintains system cleanliness, extends equipment lifespan, and eliminates clam infestations in UV dead zones.

[0043] Step 7: Continuously monitor the incoming water optical parameters, flow rate, and system operating status. Regularly check the operating status of the UV lamps in the array UV sterilization tube 104, the pre-filter dual-channel basket filter 101, and the oxidant-assisted cleaning module 103. When the pre-filter dual-channel basket filter 101 reaches its preset limit, switch to the backup filter path and replace the main filter and the main filter channel and filter. When a UV lamp in the array UV distribution pipe 102 malfunctions, adjust the array UV sterilization tube 104 via the CNC system 105 to close the faulty path and open the bypass. Then, repair the array UV sterilization tube 104 without shutting down the system. When the incoming water optical parameters and flow rate parameters change, adjust the device parameters according to the monitoring results to ensure long-term stable operation of the system.

[0044] The following specific experimental example further illustrates the multi-channel array ultraviolet advanced oxidation device for preventing fouling of water pipes proposed in this invention.

[0045] The golden mussel is a typical type of mussel causing fouling in hydraulic structures in my country. Typically, fouling units are characterized by D-type mussel larvae with a body length of 150 μm in the incoming water. These D-type larvae develop into attachment units within a few days and grow to 150 mm in size over the following year, reaching sexual maturity and releasing the next generation of fouling larvae. To investigate the control and eradication effect of a multi-channel array ultraviolet advanced oxidation mussel fouling control system for water conveyance pipelines, a case study experiment was conducted using D-type larvae as the research target.

[0046] In this embodiment, for the conditions of a DN250 inlet pipe and a flow velocity of 2.3 m / s, two sets of basket-type filters were designed and installed, with the basket-type filters placed horizontally. The array of ultraviolet water distribution pipes is placed vertically, with a height of 2 m and a pipe material of DN250, ensuring smooth water flow and uniform distribution of ultraviolet radiation. Seven array of ultraviolet sterilization pipes are arranged from top to bottom, each spaced 10 cm apart, and each 2.5 m long. A convenient maintenance-type ultraviolet sterilization lamp is placed every 0.5 m from the water distributor on each array of ultraviolet sterilization pipes for easy daily inspection and replacement. Figure 2 As shown, the oxidant injection port of the advanced oxidation cleaning module is configured as a spherical nano-dispersion disk, located upstream of the water distribution pipe downstream of the basket filter. A 10% dilute hydrogen peroxide solution is uniformly injected into the device through the spherical nano-dispersion disk.

[0047] To verify the actual effectiveness of the device, a low-load killing effect test was conducted in this embodiment. A fouling scenario was simulated, involving the simultaneous release of 1000 150μm-sized D-type clam larvae from the incoming flow, to evaluate the system's ability to kill aquatic organisms. Figure 3 As shown, when the array of ultraviolet sterilization tubes operates at a power of 200W per group and only three tubes are in use, all larvae receive an exposure to more than 200mJ / cm². 2The simulation results showed that the larvae of the clam cub survived when the water came from the left side. After passing through the extermination field, they gathered in the water collection pipe and all the clam cubs in the water collection pipe died. This example verified the system's high efficiency in killing clam cubs.

[0048] In summary, the multi-channel array ultraviolet advanced oxidation device for preventing fouling of water conveyance pipelines according to embodiments of the present invention has the following beneficial effects:

[0049] (1) The device removes large-sized clams through physical filtration, removes small-sized clams through ultraviolet light killing, and kills clams in optical blind spots through ultraviolet advanced oxidation, ensuring the long-term safety of the downstream of the water pipeline and achieving comprehensive and efficient prevention and control.

[0050] (2) The device uses an environmentally friendly oxidant that can self-quench and decompose ozone (O3) and hydrogen peroxide (H2O2) which are harmless to the environment, and generate strong oxidizing free radicals under the activation of medium-pressure ultraviolet lamps.

[0051] (3) The built-in numerical control system can automatically adjust the system flow rate, UV lamp activation, and oxidant dosage based on input parameters such as flow rate, water quality, and clam density, achieving intelligent management. This not only improves the system's operating efficiency but also ensures effective eradication of clam throughout its entire life cycle, preventing biofouling downstream.

[0052] (4) Advanced oxidation technology is used to remove organic impurities, especially bysin, adhering to the inner wall of the pipe, effectively maintaining the cleanliness of the system, extending the service life and maintenance cycle of key components such as quartz tubes, and reducing maintenance costs.

[0053] (5) This device is suitable for water pipelines operating under high load and high flow conditions and can cope with the problem of fouling by clams under various working conditions. By adjusting the number of activated ultraviolet water distribution pipes and the flow distribution, it can ensure that the incoming flow is evenly distributed to each ultraviolet sterilization pipe, thus ensuring the consistency of sterilization effect.

[0054] (6) The device has a real-time monitoring and intelligent switching mechanism, which enables inspection and maintenance without shutting down the system, ensuring the continuous water supply capacity and long-term stable operation of the system. At the same time, by optimizing the system layout and configuration, the risk of water outages due to equipment failure is reduced.

[0055] Next, referring to the accompanying drawings, a method for preventing fouling of water pipelines using multi-channel array ultraviolet advanced oxidation according to an embodiment of the present invention is described.

[0056] Specifically, Figure 4 This is a schematic flowchart of a multi-channel array ultraviolet advanced oxidation method for preventing fouling of water pipelines provided in an embodiment of the present invention.

[0057] like Figure 4As shown, the multi-channel array ultraviolet advanced oxidation method for preventing fouling of water conveyance pipelines includes the following steps:

[0058] In step S401, a pre-positioned dual-channel basket filter is designed and installed based on the target risk pipeline and target site space.

[0059] In step S402, the pre-filter dual-channel basket filter is sequentially connected to the array of ultraviolet water distribution pipes and the array of high-efficiency ultraviolet sterilization tubes, and integrated with the CNC system and the environmentally friendly oxidant-assisted cleaning module.

[0060] In step S403, the pre-filter dual-channel basket filter is activated to check and clean the clams in the target risk pipe through a single-channel and backup channel switching mechanism.

[0061] In step S404, based on the incoming water conditions and target requirements, the number of activated array ultraviolet water distribution pipes and the flow distribution are adjusted by the numerical control system to evenly distribute the incoming flow to each ultraviolet sterilization pipe.

[0062] In step S405, an environmentally friendly agent is added between the pre-dual-channel basket filter and the ultraviolet water distribution pipe through the oxidant-assisted cleaning module, and the amount of environmentally friendly agent added is adjusted by the CNC system.

[0063] In step S406, an array of ultraviolet killing tubes is used to form a dense ultraviolet killing area to kill clam larvae and adult clams. Free radicals are generated by ultraviolet activation of environmentally friendly agents to kill clam larvae and clam byssal proteins flowing in the ultraviolet killing section.

[0064] It should be noted that the foregoing explanation of the embodiment of the multi-channel array ultraviolet advanced oxidation device for preventing fouling of water conveyance pipelines also applies to the multi-channel array ultraviolet advanced oxidation method for preventing fouling of water conveyance pipelines in this embodiment, and will not be repeated here.

[0065] The multi-channel array ultraviolet advanced oxidation method for preventing fouling of water pipelines according to embodiments of the present invention has the following beneficial effects:

[0066] (1) Large-sized clams are removed by physical filtration, small-sized clams are removed by ultraviolet light killing, and clams in the optical blind zone are killed by ultraviolet advanced oxidation, ensuring the long-term safety of the downstream of the water pipeline and achieving comprehensive and efficient prevention and control.

[0067] (2) An environmentally friendly oxidant is used, which can self-quench and decompose ozone (O3) and hydrogen peroxide (H2O2) that are not harmful to the environment, and generate strong oxidizing free radicals under the activation of medium-pressure ultraviolet lamps.

[0068] (3) The built-in numerical control system can automatically adjust the system flow rate, UV lamp activation, and oxidant dosage based on input parameters such as flow rate, water quality, and clam density, achieving intelligent management. This not only improves the system's operating efficiency but also ensures effective eradication of clam throughout its entire life cycle, preventing biofouling downstream.

[0069] (4) Advanced oxidation technology is used to remove organic impurities, especially bysin, adhering to the inner wall of the pipe, effectively maintaining the cleanliness of the system, extending the service life and maintenance cycle of key components such as quartz tubes, and reducing maintenance costs.

[0070] (5) Suitable for water supply pipelines operating under high load and high flow conditions, and capable of dealing with the problem of fouling by clams under various working conditions. By adjusting the number of activated ultraviolet water distribution pipes and the flow distribution, it can be ensured that the incoming flow is evenly distributed to each ultraviolet sterilization pipe, thus ensuring the consistency of sterilization effect.

[0071] (6) It has a real-time monitoring and intelligent switching mechanism, which enables inspection and maintenance without shutting down the system, ensuring the continuous water supply capacity and long-term stable operation of the system. At the same time, by optimizing the system layout and configuration, the risk of water outages due to equipment failure is reduced.

[0072] Figure 5 This is a schematic diagram of an electronic device provided in an embodiment of the present invention. The electronic device may include:

[0073] The memory 501, the processor 502, and the computer program stored on the memory 501 and capable of running on the processor 502.

[0074] When the processor 502 executes the program, it implements the multi-channel array ultraviolet advanced oxidation method for preventing fouling of water pipes provided in the above embodiments.

[0075] Furthermore, electronic devices also include:

[0076] Communication interface 503 is used for communication between memory 501 and processor 502.

[0077] The memory 501 is used to store computer programs that can run on the processor 502.

[0078] The memory 501 may include high-speed RAM memory, and may also include non-volatile memory, such as at least one disk storage device.

[0079] If the memory 501, processor 502, and communication interface 503 are implemented independently, then the communication interface 503, memory 501, and processor 502 can be interconnected via a bus to complete communication between them. The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. Buses can be categorized as address buses, data buses, control buses, etc. For ease of representation, Figure 5 The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.

[0080] Optionally, in a specific implementation, if the memory 501, processor 502, and communication interface 503 are integrated on a single chip, then the memory 501, processor 502, and communication interface 503 can communicate with each other through an internal interface.

[0081] Processor 502 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement embodiments of the present invention.

[0082] This invention also provides a computer program product, which, when executed by a processor, implements the above-mentioned method for preventing fouling of water pipelines using multi-channel array ultraviolet advanced oxidation.

[0083] This invention also provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the above-described method for preventing fouling of water pipes using multi-channel array ultraviolet advanced oxidation.

[0084] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0085] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "N" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0086] Any process or method description in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or N executable instructions for implementing custom logic functions or processes, and the scope of preferred embodiments of the invention includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the functions involved, as will be understood by those skilled in the art to which embodiments of the invention pertain.

[0087] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (such as a computer-based system, a processor-included system, or other system that can fetch and execute instructions from, an instruction execution system, apparatus, or device). For the purposes of this specification, "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transmit programs for use by, or in conjunction with, an instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of computer-readable media include: an electrical connection having one or more wires (electronic device), a portable computer disk drive (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and editable read-only memory (EPROM or flash memory), fiber optic devices, and portable optical disc read-only memory (CDROM). Alternatively, the computer-readable medium may be paper or other suitable media on which the program can be printed, since the program can be obtained electronically by optically scanning the paper or other medium, followed by editing, interpreting, or otherwise processing as necessary, and then stored in a computer memory.

[0088] It should be understood that various parts of the present invention can be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the N steps or methods can be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. If implemented in hardware, as in another embodiment, it can be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0089] Those skilled in the art will understand that all or part of the steps of the methods in the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, the program includes one or a combination of the steps of the method embodiments.

[0090] Furthermore, the functional units in the various embodiments of the present invention can be integrated into a processing module, or each unit can exist physically separately, or two or more units can be integrated into a module. The integrated module can be implemented in hardware or as a software functional module. If the integrated module is implemented as a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium.

[0091] The storage medium mentioned above can be a read-only memory, a disk, or an optical disk, etc. Although embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A multi-channel array ultraviolet advanced oxidation device for preventing fouling of water conveyance pipelines, characterized in that, include: A pre-filter with dual channels, comprising a single channel and a backup channel, is used to filter clams in the target risk pipe through the single channel and switch to the backup channel when the blockage reaches a limit. An array of ultraviolet water distribution pipes is placed vertically relative to the target risk pipeline flow to adjust the activation and flow rate of the distribution pipes according to the incoming water conditions, so as to distribute the water flow evenly. An oxidant-assisted cleaning module is disposed between the pre-filter and the array of ultraviolet water pipes, and is used to dispose of environmentally friendly agents between the pre-filter and the ultraviolet water pipes. An array of ultraviolet killing tubes, which are connected to an array of ultraviolet water distribution tubes, are used to form a dense ultraviolet killing area to kill clam larvae and adult clam, and to generate free radicals by activating the environmentally friendly agent with ultraviolet light to remove clam larvae and clam byssal proteins attached to the tubes. A numerical control system is used to control the flow rate of the array of ultraviolet water distribution pipes, the start and stop of the array of ultraviolet sterilization pipes, and the dosage of the oxidant-assisted cleaning module.

2. The multi-channel array ultraviolet advanced oxidation device for preventing fouling of water pipelines according to claim 1, characterized in that, The pre-filter dual-channel basket filter is equipped with a filter screen, the size of which is 5mm.

3. The multi-channel array ultraviolet advanced oxidation device for preventing fouling of water pipelines according to claim 1, characterized in that, The environmentally friendly agent includes a gaseous oxidizing agent and a liquid oxidizing agent, wherein the gaseous oxidizing agent is ozone and the liquid oxidizing agent is hydrogen peroxide.

4. The multi-channel array ultraviolet advanced oxidation device for preventing fouling of water pipelines according to claim 1, characterized in that, The array of ultraviolet killing tubes contains multiple ultraviolet killing tubes, and each ultraviolet killing tube contains a high-transmittance ultraviolet quartz glass tube, which contains a medium-pressure ultraviolet lamp.

5. The multi-channel array ultraviolet advanced oxidation device for preventing fouling of water pipelines according to claim 4, characterized in that, The extinguishing parameter of the medium-pressure ultraviolet lamp is 200W.

6. The multi-channel array ultraviolet advanced oxidation device for preventing fouling of water pipelines according to claim 1, characterized in that, Also includes: The ultraviolet water pipe is connected to the array of ultraviolet sterilization tubes and is used to collect the water flow treated by the array of ultraviolet sterilization tubes.

7. A method for preventing fouling of water pipelines using multi-channel array ultraviolet advanced oxidation, characterized in that, The multi-channel array ultraviolet advanced oxidation device for preventing fouling of water pipelines according to any one of claims 1-6 includes the following steps: Design and install a front-mounted dual-channel basket filter based on the target risk pipeline and target site space; The pre-filter is connected in sequence to an array of ultraviolet water distribution pipes and an array of high-efficiency ultraviolet sterilization pipes, and integrated with a CNC system and an environmentally friendly oxidant-assisted cleaning module. The pre-filter is activated, and the single-channel and backup channel switching mechanism is used to check and clean the clam shells in the target risk pipeline. Based on the incoming water conditions and target requirements, the number of activated ultraviolet water distribution pipes and the flow distribution are adjusted by the numerical control system to evenly distribute the incoming flow to each ultraviolet sterilization pipe. An environmentally friendly agent is added between the pre-filter and the ultraviolet water distribution pipe via an oxidant-assisted cleaning module, and the amount of the environmentally friendly agent added is adjusted by the CNC system. The array of ultraviolet killing tubes forms a dense ultraviolet killing zone to kill larvae and adult clam shells. The environmentally friendly agent is activated by ultraviolet light to generate free radicals, which kill the larvae and byssal proteins flowing in the ultraviolet killing section.

8. An electronic device, characterized in that, include: The system includes a memory, a processor, and a computer program stored in the memory and executable on the processor, the processor executing the program to implement the multi-channel array ultraviolet advanced oxidation method for preventing fouling of water pipes as described in claim 7.

9. A computer program product, characterized in that, When the computer program / instruction is executed by the processor, it implements the method for preventing fouling of water pipelines using multi-channel array ultraviolet advanced oxidation as described in claim 7.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that, The program is executed by the processor to implement the multi-channel array ultraviolet advanced oxidation method for preventing fouling of water conveyance pipelines as described in claim 7.

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