Security filter element cleaning method and related equipment

Abstract

The invention discloses a cartridge filter element cleaning method and related equipment, and relates to the technical field of industrial filtration, the method comprises the following steps: in response to a filter element cleaning signal, injecting a cleaning agent into a cleaning liquid tank; relevant valves and cleaning pumps are opened, so that the cleaning agent circularly cleans the filter element according to a preset flow path; closing the valve and the cleaning pump, and opening a drain opening to empty the cleaning agent; after the cleaning water is injected, the circulating cleaning step is repeated; and finally, emptying the cleaning water. The process is automatically triggered through the cleaning signal, full-automatic control over the valve and the pump is achieved, the service life of the filter element is effectively prolonged, and the operation efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of industrial filtration technology, and more specifically, to a method for cleaning a filter element of a security filter and related equipment. Background Art

[0002] With the continuous development of industrial technology, security filters, as key filtering devices, have been widely used in water treatment, chemical industry, pharmaceutical industry, food processing and other fields. However, the filter element of the security filter is easily contaminated by suspended matter, colloids, microorganisms and other impurities during long-term operation, resulting in filter element blockage, reduced filtration efficiency and even equipment operation failure. Therefore, the cleaning and maintenance of the filter element has become a key link to ensure the stable operation of the equipment.

[0003] In the prior art, filter element cleaning usually relies on manual disassembly and cleaning or a single cycle cleaning method. However, manual cleaning is time-consuming and labor-intensive, which not only increases the complexity of the operation, but also leads to an increase in labor costs. Although the single cycle cleaning method is relatively simple to operate, the cleaning effect is often not thorough enough, especially it is difficult to effectively remove stubborn pollutants inside and outside the filter element. In addition, the limitations of these traditional cleaning methods may lead to frequent replacement of filter elements, increase operating costs, and make it difficult to ensure the long-term and efficient operation of the equipment. That is, there are technical problems in the prior art for low cleaning efficiency and incomplete cleaning effect of the security filter element. Summary of the invention

[0004] A series of simplified concepts are introduced in the summary of the invention, which will be further described in detail in the detailed description. The summary of the invention of this application does not mean to attempt to define the key features and essential technical features of the technical solution claimed for protection, nor does it mean to attempt to determine the scope of protection of the technical solution claimed for protection.

[0005] The security filter element cleaning method and related equipment provided in the present application can automatically trigger the process through the cleaning signal, realize fully automatic control of valves and pumps, completely remove filter element blockage through cyclic cleaning, and completely avoid residual pollution through sewage discharge. The cleaning agent is combined with clean water to ensure no residue, effectively extend the life of the filter element and improve operational efficiency.

[0006] In a first aspect, the present application provides a method for cleaning a filter element of a security filter, comprising: in response to a filter element cleaning signal for a target security filter, injecting a cleaning agent into a cleaning liquid tank; opening a first valve, a second valve and a third valve, closing a fourth valve and a fifth valve, and turning on a cleaning pump for a first preset time, so that the cleaning agent circulates in the order of the cleaning liquid tank, the first valve, the second valve, the target security filter and the third valve, wherein the first valve is a valve disposed between a first fluid port of the cleaning liquid tank and the cleaning pump, the second valve is a valve disposed between the cleaning pump and a third fluid port of the target security filter, the third valve is a valve disposed between a fourth fluid port of the target security filter and a second fluid port of the cleaning liquid tank, and the fourth valve is a valve disposed between a first pipeline section and a second pipeline section. the first pipe section is the pipe section between the second valve and the third fluid port, and the second pipe section is the pipe section between the third valve and the second fluid port; close the valve and the cleaning pump in the open state, and open the first drain port and the second drain port to drain the cleaning agent, wherein the first drain port is the drain port of the cleaning liquid tank, and the second drain port is the drain port of the security filter; inject cleaning water into the cleaning liquid tank; open the first valve, the second valve and the third valve, and open the cleaning pump for a second preset time so that the cleaning water circulates in the order of the cleaning liquid tank, the first valve, the second valve, the target security filter and the third valve; close the valve and the cleaning pump in the open state, and open the first drain port and the second drain port to drain the cleaning water.

[0007] In some embodiments, before closing the valve and the cleaning pump that are in an open state, and opening the first drain port and the second drain port to drain the cleaning water, the security filter element cleaning method also includes: opening the fourth valve and the fifth valve, closing the second valve and the third valve, and opening the cleaning pump for a third preset time so that the cleaning water circulates in the order of the cleaning liquid tank, the first valve, the fifth valve, the target safety filter and the fourth valve.

[0008] In some embodiments, before closing the valve and the cleaning pump that are in an open state and opening the first drain port and the second drain port to drain the cleaning agent, the security filter element cleaning method also includes: closing the first valve, the second valve, the third valve and the cleaning pump for a fourth preset time to allow the cleaning agent to soak in the target security filter.

[0009] In some embodiments, after closing the first valve, the second valve, the third valve and the cleaning pump for a fourth preset time to allow the cleaning agent to soak in the target safety filter, the safety filter element cleaning method further includes: opening the first valve, the second valve and the third valve, and opening the cleaning pump for a fifth preset time to allow the cleaning agent to circulate in the order of the cleaning liquid tank, the first valve, the second valve, the target safety filter and the third valve.

[0010] In some embodiments, before injecting the cleaning agent into the cleaning liquid tank in response to the filter element cleaning signal for the target safety filter, the safety filter element cleaning method also includes: acquiring the pressure difference data between the third fluid port and the fourth fluid port; and generating the filter element cleaning signal when the pressure difference data at the current moment is greater than the preset pressure difference.

[0011] In some embodiments, when the pressure differential data at the current moment is greater than the preset pressure differential, the filter element cleaning signal is generated, including: when the pressure differential data at the current moment is greater than the preset pressure differential, the type of pollutant in the target safety filter is judged according to the pressure differential data of the sixth preset time length, and a filter element cleaning signal with information on the type of pollutant is generated.

[0012] In some embodiments, the step of injecting a cleaning agent into a cleaning liquid tank in response to a filter element cleaning signal for a target security filter comprises: when the pollutant type in the filter element cleaning signal is a biological organic deposition type, injecting a first pre-agent into the cleaning liquid tank, wherein the first pre-agent comprises a 0.1% concentration of a sodium hydroxide solution, a benzophenone-type bactericide, and sodium dodecylbenzene sulfonate; and when the pollutant type in the filter element cleaning signal is an inorganic scaling type, injecting a second pre-agent into the cleaning liquid tank, wherein the second pre-agent comprises a 2% concentration of a citric acid solution.

[0013] In a second aspect, the present application also provides a security filter element cleaning device, comprising: a liquid tank filling unit, used to inject a cleaning agent into a cleaning liquid tank in response to a filter element cleaning signal for a target security filter; a valve control unit, used to open a first valve, a second valve and a third valve, close a fourth valve and a fifth valve, and turn on a cleaning pump for a first preset time, so that the cleaning agent circulates in the order of the cleaning liquid tank, the first valve, the second valve, the target security filter and the third valve, wherein the first valve is a valve arranged between a first fluid port of the cleaning liquid tank and the cleaning pump, the second valve is a valve arranged between the cleaning pump and the third fluid port of the target security filter, the third valve is a valve arranged between a fourth fluid port of the target security filter and the second fluid port of the cleaning liquid tank, the fourth valve is a valve arranged between a first pipeline segment and a second pipeline segment, and the first pipeline segment is the a pipe section between the second valve and the third fluid port, wherein the second pipe section is the pipe section between the third valve and the second fluid port; the valve control unit is further used to close the valve and the cleaning pump in an open state, and to open the first drain port and the second drain port to drain the cleaning agent, wherein the first drain port is the drain port of the cleaning liquid tank, and the second drain port is the drain port of the security filter; the liquid tank filling unit is further used to inject cleaning water into the cleaning liquid tank; the valve control unit is further used to open the first valve, the second valve and the third valve, and to open the cleaning pump for a second preset time so that the cleaning water circulates in the order of the cleaning liquid tank, the first valve, the second valve, the target security filter and the third valve; the valve control unit is further used to close the valve and the cleaning pump in an open state, and to open the first drain port and the second drain port to drain the cleaning water.

[0014] In a third aspect, the present application further provides an electronic device, comprising: a memory and a processor, wherein the processor is used to implement the steps of the security filter element cleaning method described in the first aspect when executing the computer program stored in the memory.

[0015] In a fourth aspect, the present application further provides a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the steps of the security filter element cleaning method described in the first aspect.

[0016] In a fifth aspect, the present application also provides a computer program product, including a computer program or computer executable instructions, which, when executed by a processor, implements the security filter element cleaning method provided in an embodiment of the present application.

[0017] In summary, the present application triggers the cleaning process through a cleaning signal, automatically controls the opening and closing of valves and cleaning pumps, and automates the operations in each stage of cleaning, draining and flushing, thereby reducing reliance on manual intervention, reducing labor intensity, and improving operational efficiency; and the cleaning agent circulates in the filter element, which can fully dissolve and remove dirt and blockages on the surface of the filter element. During the drainage stage, the agent and cleaning water are completely drained through the drain port to avoid residual contamination of the filter element again. The dual effects of the cleaning agent and clean water are utilized to ensure that there is no residue inside and outside the filter element, thereby extending the service life of the filter element. In summary, the security filter element cleaning method provided by the present application automatically triggers the process through a cleaning signal, realizes fully automatic control of valves and pumps, circulates cleaning to thoroughly remove dirt and blockages in the filter element, drains to thoroughly avoid residual pollution, and combines the cleaning agent with clean water to ensure that there is no residue, effectively extending the life of the filter element and improving operational efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present specification. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0019] Figure 1 A schematic diagram of a flow chart of a method for cleaning a filter element of a security filter provided in an embodiment of the present application;

[0020] Figure 2 A schematic diagram of the structure of a cleaning system provided in an embodiment of the present application;

[0021] Figure 3 A schematic diagram of the structure of a security filter element cleaning device provided in an embodiment of the present application;

[0022] Figure 4 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application.

[0023] In the figure, 410 is a cleaning liquid tank, 411 is a first fluid port, 412 is a second fluid port, 413 is a first drain port, 421 is a first valve, 422 is a second valve, 423 is a third valve, 424 is a fourth valve, 425 is a fifth valve, 430 is a cleaning pump, 441 is a target safety filter, 442 is a second drain port, 443 is a third fluid port, and 444 is a fourth fluid port. DETAILED DESCRIPTION

[0024] Terms in the specification, claims and drawings of this application, such as "first", "second", "third", "fourth", etc. (if any), are used to distinguish similar objects rather than to describe a specific order or sequence. Therefore, it is understood that these terms can be used interchangeably where appropriate, so that the described embodiments can be implemented in a different order unless otherwise specified in the diagram or description. In addition, the terms "is" and "has" and any variations thereof in this application are intended to cover all possible constituent elements on a non-exclusive basis. For example, a process, method, system, product or device comprising a number of steps or units is not necessarily limited to the steps or units that are explicitly listed, but may also include other steps or units that are not explicitly listed, or steps or units that are inherent to the process, method, product or device.

[0025] In this application, a "module" or "unit" refers to a computer program or a part of a computer program that has a specific function and works in conjunction with other related parts to achieve a predetermined goal. These modules or units can be implemented by software, hardware (such as processing circuits or memories), or a combination of the two. One or more processors or memories can implement one or more modules or units. At the same time, each module or unit can also be a part of a larger module or unit.

[0026] The technical solutions in the present application will be described in detail below in conjunction with the drawings in the embodiments. It should be noted that the described embodiments are only a part of the present application, not all embodiments. In the following description, the "some embodiments" mentioned are only subsets of all possible embodiments, which may be the same or different subsets, and different embodiments may be combined with each other without conflict.

[0027] Figure 1 1 is a flow chart of a method for cleaning a filter cartridge of a security filter provided in an embodiment of the present application. For example, the method for cleaning a filter cartridge of a security filter provided in an embodiment of the present application can be applied to Figure 2 Cleaning system shown, see Figure 1 and Figure 2 The security filter element cleaning method provided in the embodiment of the present application may include the following steps 101 to 106:

[0028] Step 101, in response to a filter element cleaning signal for a target security filter 441, a cleaning agent is injected into a cleaning liquid tank 410;

[0029] In some examples, the target security filter 441 is a specific security filter that needs to be cleaned. The target security filter 441 can be a device determined based on monitoring data (such as differential pressure or filtration performance indicators). The filter element cleaning signal is a command signal that triggers the cleaning operation. It can be generated by a sensor or monitoring device, or it can be generated from a user's command / operation to start the cleaning process. The cleaning agent is a chemical solution specifically used to clean the filter element of the security filter. It can dissolve and remove contaminants on the surface of the filter element, thereby restoring the filtration performance of the filter element. The cleaning liquid tank 410 is a container for storing cleaning agents. It is connected to a cleaning pump and a pipeline to deliver the prepared cleaning agent into the target security filter 441 to complete the cleaning cycle.

[0030] Through the implementation of step 101, the automated injection of medicine reduces manual operations, labor intensity and the risk of misoperation.

[0031] Step 102, open the first valve 421, the second valve 422 and the third valve 423, close the fourth valve 424 and the fifth valve 425, and open the cleaning pump 430 for a first preset time, so that the cleaning agent circulates in the order of the cleaning liquid tank 410, the first valve 421, the second valve 422, the target security filter 441 and the third valve 423, wherein the first valve 421 is a valve disposed between the first fluid port 411 of the cleaning liquid tank 410 and the cleaning pump 430, and the second valve 422 is a valve disposed between the first fluid port 411 of the cleaning liquid tank 410 and the cleaning pump 430. a valve disposed between the cleaning pump 430 and the third fluid port 443 of the target security filter 441, the third valve 423 is a valve disposed between the fourth fluid port 444 of the target security filter 441 and the second fluid port 412 of the cleaning liquid tank 410, the fourth valve 424 is a valve disposed between the first pipeline section and the second pipeline section, the first pipeline section is the pipeline section between the second valve 422 and the third fluid port 443, and the second pipeline section is the pipeline section between the third valve 423 and the second fluid port 412;

[0032] In some examples, the first valve 421 is a valve located between the first fluid port 411 of the cleaning liquid tank 410 and the cleaning pump 430, and is used to control the fluid flow between the cleaning liquid tank 410 and the cleaning pump 430. This is a valve fixedly installed in the cleaning system, and can be automatically opened or closed by a control signal; when the first valve 421 is opened, the liquid can flow from the cleaning liquid tank 410 to the cleaning pump 430; when the first valve 421 is closed, the liquid in the cleaning liquid tank 410 can be prevented from entering the cleaning pump 430. The second valve 422 is a valve located between the cleaning pump 430 and the third fluid port 443 of the target security filter 441, and is used to control the cleaning agent output by the cleaning pump 430 to flow to the target security filter 441; when the second valve 422 is opened, the liquid can be sent to the target security filter 441 through the cleaning pump 430; when it is closed, the liquid can be blocked from flowing into the target filter. The third valve 423 is a valve located between the fourth fluid port 444 of the target security filter 441 and the second fluid port 412 of the cleaning liquid tank 410, and is used to control the backflow of the cleaning agent to the cleaning liquid tank 410; when the third valve 423 is opened, the liquid can flow back from the security filter to the cleaning liquid tank 410 to complete the cycle; when the third valve 423 is closed, the backflow path can be blocked. The fourth valve 424 is a valve arranged between the first pipeline section and the second pipeline section, and is used to switch the flow direction of the agent in other cleaning modes (such as reverse cleaning); in this step, the fourth valve 424 is closed to ensure that the liquid flows along the forward cleaning path; it may need to be opened during reverse cleaning. The fifth valve 425 is a valve located in the spare pipeline or sewage discharge path, and is used to control the flow direction of the cleaning agent or sewage.

[0033] The cleaning pump 430 is a core component that provides liquid flow power, and is used to transport cleaning agents or other liquids from the cleaning liquid tank 410 to the target safety filter 441 and form a circulation; after the cleaning pump 430 is turned on, the liquid can enter the pump from the cleaning liquid tank 410 through the first valve 421 and enter the target safety filter 441 through the second valve 422.

[0034] The first preset time refers to the set time for the cleaning pump 430 to run, which ensures that the medicine is fully circulated and cleaned in the filter element. It can be from several minutes to more than ten minutes. For example, the first preset time can be set to 10 minutes, and the pump will continue to run during this time, and the medicine will complete multiple cycles.

[0035] The cleaning liquid tank 410 is a container for storing cleaning agents and is the starting point and end point of the agent circulation in the entire cleaning system. The first pipeline section is the pipeline between the second valve 422 and the third fluid port 443 of the target security filter 441, which is used to transport the cleaning agents; the second pipeline section is the pipeline between the third valve 423 and the second fluid port 412 of the cleaning liquid tank 410, which is used to recover the cleaning agents.

[0036] Exemplarily, when the cleaning system receives a signal that the target security filter 441 needs to be cleaned, the first valve 421, the second valve 422 and the third valve 423 are automatically opened, and the fourth valve 424 and the fifth valve 425 are closed at the same time to ensure that the cleaning agent flows according to the preset circulation path; then, the cleaning pump 430 is started, and the cleaning agent enters the cleaning pump 430 from the cleaning liquid tank 410 through the first valve 421, and then is delivered to the target security filter 441 through the second valve 422. Inside the filter element, the cleaning agent acts on the pollutants, dissolves or decomposes the fouling, and then returns to the cleaning liquid tank 410 through the third valve 423. The cleaning pump 430 continues to run for a first preset time (such as 10 minutes) to ensure that the cleaning agent circulates multiple times in the system to thoroughly clean the pollutants on the surface and inside of the filter element. The entire process does not require manual intervention and is automatically controlled by the system.

[0037] By implementing step 102, the circulating cleaning agent is used to efficiently remove pollutants on the surface and inside of the filter element, thereby improving the thoroughness of cleaning.

[0038] Step 103, close the valve and the cleaning pump 430 in the open state, and open the first drain port 413 and the second drain port 442 to drain the cleaning agent, wherein the first drain port 413 is the drain port of the cleaning liquid tank 410, and the second drain port 442 is the drain port of the security filter;

[0039] In some examples, the first drain port 413 is a discharge interface on the cleaning liquid tank 410, which is used to drain the remaining cleaning agent or cleaning water in the cleaning liquid tank 410 to ensure that the liquid in the cleaning liquid tank 410 can be completely discharged; a switch valve can be installed on the drain port to control the discharge process; for example, the first drain port 413 can be a drain port with a diameter of 20 mm at the bottom of the cleaning liquid tank 410, connected to the sewage pipe through a manual or electric valve, and the valve is opened when the liquid in the cleaning liquid tank 410 needs to be drained. The second drain port 442 is a discharge interface on the security filter, which is used to discharge the cleaning agent or cleaning water remaining inside the filter element and in the pipeline, ensuring that the liquid in the entire security filter is discharged cleanly, and can be used in conjunction with a control valve to accurately control the discharge; for example, the second drain port 442 can be a drain port interface with a diameter of 15 mm at the bottom of the security filter, connected to the sewage pipe through a valve, and used to discharge the liquid in the security filter.

[0040] Exemplarily, after the cleaning is completed, all valves in the open state and the cleaning pump 430 are closed to ensure that the cleaning process stops; then, the first drain port 413 of the cleaning liquid tank 410 and the second drain port 442 of the safety filter are opened in sequence to drain all the remaining agents in the cleaning liquid tank 410 and the remaining agents in the safety filter and pipelines; the discharged liquid can enter the recovery system or be directly discharged into the waste liquid treatment device to ensure that there is no residue in the cleaning system, so as to prepare for the next flushing or reuse of the agent.

[0041] By implementing step 103, the cleaning agent is completely emptied to prevent the residue from affecting the subsequent operation of the filter element cleaning.

[0042] Step 104, injecting cleaning water into the cleaning liquid tank 410;

[0043] In some examples, cleaning water refers to a clean water source used to flush residual cleaning agents and dissolved contaminants in the cleaning system (including the cleaning liquid tank 410, the safety filter and the pipeline), to ensure that the inside of the target safety filter 441 is thoroughly cleaned to avoid residual agents or contaminants; the cleaning water can be directly injected into the cleaning liquid tank 410 by connecting to a tap water network or an industrial pure water system, or it can be transported to the cleaning liquid tank 410 by an external water storage tank or a water supply pump to meet the cleaning needs.

[0044] Exemplarily, after the cleaning agent is drained, the water supply pipeline valve can be opened by automatic or manual control to inject cleaning water into the cleaning liquid tank 410 to a set liquid level.

[0045] By implementing step 104, preparations are made for the clean water flushing process, and residual reagents and dissolved substances in the equipment are effectively removed.

[0046] Step 105, opening the first valve 421, the second valve 422 and the third valve 423, and turning on the cleaning pump 430 for a second preset time, so that the cleaning water circulates in the order of the cleaning liquid tank 410, the first valve 421, the second valve 422, the target security filter 441 and the third valve 423;

[0047] In some examples, the second preset duration refers to the set time for the cleaning pump 430 to run and circulate the cleaning water, ensuring that the flow of cleaning water in the cleaning system achieves the expected effect and completely removes residual chemicals and pollutants in the safety filter and pipelines.

[0048] Exemplarily, after the cleaning water is injected into the cleaning liquid tank 410, the first valve 421, the second valve 422 and the third valve 423 can be opened in sequence, and the cleaning pump 430 can be started, so that the cleaning water enters the cleaning pump 430 from the cleaning liquid tank 410 through the first valve 421, and then is transported to the target safety filter 441 through the second valve 422 to forward flush the filter element; after the cleaning water removes residual agents and dissolved contaminants in the filter element, it flows back to the cleaning liquid tank 410 through the third valve 423, forming a cycle, which continues to run for a second preset time (such as 5 minutes) to ensure that the inside of the target safety filter 441 is thoroughly cleaned.

[0049] By implementing step 105, the circulation of cleaning water is utilized to further remove the residues in the system, thereby ensuring the clean state of the filter element and the equipment.

[0050] Step 106, close the valve and the cleaning pump 430 that are in the open state, and open the first drain port 413 and the second drain port 442 to drain the cleaning water;

[0051] Illustratively, after the cleaning water circulation is completed, the first, second, and third valves 423 and the cleaning pump 430 can be closed to stop the flow of cleaning water; then, the first drain port 413 and the second drain port 442 are opened in sequence to completely drain the cleaning water in the cleaning liquid tank 410 and the residual cleaning water in the safety filter and pipeline, ensuring that the interior of the entire target safety filter 441 is clean and free of residue, preparing for the target safety filter 441 to resume normal operation or enter the next step of operation.

[0052] By implementing step 106, the clean water and residues are drained, the equipment is restored to a clean state, and the normal operation of the equipment is ensured.

[0053] In summary, the embodiment of the present application triggers the cleaning process through a cleaning signal, automatically controls the opening and closing of the valve and the cleaning pump 430, and automates the operations in each stage of cleaning, draining and flushing, thereby reducing the reliance on manual intervention, reducing labor intensity, and improving operating efficiency; and the cleaning agent circulates in the filter element, which can fully dissolve and remove the dirt and blockages on the surface of the filter element. In the drainage stage, the agent and the cleaning water are completely drained through the drain port to avoid the re-contamination of the filter element by the residue. The dual effects of the cleaning agent and clean water are utilized to ensure that there is no residue inside and outside the filter element, thereby extending the service life of the filter element. In summary, the method for cleaning the filter element of the security filter provided in the embodiment of the present application automatically triggers the process through a cleaning signal, realizes fully automatic control of the valve and the pump, circulates and cleans to thoroughly remove the dirt and blockages in the filter element, drains and thoroughly avoids residual pollution, and the cleaning agent and clean water are combined to ensure that there is no residue, effectively extending the life of the filter element and improving operating efficiency.

[0054] In some embodiments, before step 106, the aforementioned safety filter element cleaning method may also include: opening the fourth valve 424 and the fifth valve 425, closing the second valve 422 and the third valve 423, and turning on the cleaning pump 430 for a third preset time period so that the cleaning water circulates in the order of the cleaning liquid tank 410, the first valve 421, the fifth valve 425, the target safety filter 441 and the fourth valve 424.

[0055] In some examples, the third preset duration refers to the set time for the cleaning pump 430 to perform reverse circulation cleaning after switching the flow direction of the cleaning water, ensuring that the cleaning water can thoroughly clean the target security filter 441 and the pollutants and chemicals remaining in the pipeline.

[0056] Exemplarily, before entering step 106, the cleaning flow path can be switched, the fourth valve 424 and the fifth valve 425 can be opened, the second valve 422 and the third valve 423 can be closed, and the cleaning pump 430 can be started at the same time, so that the cleaning water enters the outlet end of the target security filter 441 from the cleaning liquid tank 410 through the first valve 421, and removes the residual pollutants and chemicals inside the filter element through reverse flow, and then is discharged back to the cleaning liquid tank 410 through the fourth valve 424; the cleaning pump 430 runs for a third preset time (such as 5 minutes) to ensure that the reverse flushing of the filter element is thorough and effective, and to prepare for subsequent drainage.

[0057] Through the implementation of the above embodiment, a reverse circulation flushing step is added to further remove deep-seated contaminants and residual agents in the filter element, thereby enhancing the cleaning effect; and the flow direction of the cleaning water is changed to make the multi-angle cleaning of the filter element more thorough, thereby avoiding cleaning blind spots caused by single-direction cleaning.

[0058] In some embodiments, before step 103 , the aforementioned safety filter element cleaning method may further include: closing the first valve 421 , the second valve 422 , the third valve 423 and the cleaning pump 430 for a fourth preset time period to allow the cleaning agent to soak in the target safety filter 441 .

[0059] In some examples, the fourth preset time duration refers to the time that the cleaning agent is stationary and soaked inside the target security filter 441. The soaking allows the agent to fully react with the pollutants to soften, decompose or dissolve the stubborn dirt on the surface of the filter element to enhance the cleaning effect.

[0060] Exemplarily, after the cleaning pump 430 stops running, the first valve 421, the second valve 422 and the third valve 423 can be closed to allow the cleaning agent to remain stationary inside the target security filter 441; the fourth preset time (for example, 30 minutes) is used to ensure that the agent is in full contact with the pollutants in the filter element and completes a chemical reaction, thereby softening, decomposing or dissolving the pollutants, especially stubborn organic deposits or scaling pollutants; after the soaking is completed, continue to perform the subsequent steps of discharging the agent and flushing to ensure a thorough cleaning effect.

[0061] By implementing the above-mentioned embodiment, the soaking process is added, so that the cleaning agent can fully act on the stubborn pollutants on the filter element, thereby improving the cleaning effect.

[0062] In some embodiments, after closing the aforementioned first valve 421, the second valve 422, the third valve 423 and the cleaning pump 430 for a fourth preset time period to allow the cleaning agent to soak in the target safety filter 441, the safety filter element cleaning method may also include: opening the first valve 421, the second valve 422 and the third valve 423, and opening the cleaning pump 430 for a fifth preset time period to allow the cleaning agent to circulate in the order of the cleaning liquid tank 410, the first valve 421, the second valve 422, the target safety filter 441 and the third valve 423.

[0063] In some examples, the fifth preset time refers to the set time for the cleaning pump 430 to run again after the cleaning agent immersion is completed, which is used to circulate the cleaning agent in the target security filter 441, thereby further enhancing the cleaning effect of pollutants on the surface and inside of the filter element.

[0064] Exemplarily, after the cleaning agent has finished static soaking, the first valve 421, the second valve 422 and the third valve 423 can be automatically opened, and the cleaning pump 430 can be started at the same time, so that the cleaning agent enters the cleaning pump 430 from the cleaning liquid tank 410 through the first valve 421, and is then transported to the target safety filter 441 through the second valve 422 to perform enhanced cleaning on the filter element; after the cleaning agent carries away the softened or decomposed pollutants inside the filter element, it flows back to the cleaning liquid tank 410 through the third valve 423 to form a continuous cycle; the cleaning pump 430 runs for the fifth preset time (for example, 10 minutes) to ensure that the agent circulates multiple times in the target safety filter 441 to further remove residual pollutants on the filter element, thereby providing protection for subsequent sewage discharge and flushing.

[0065] Through the implementation of the above-mentioned embodiment, a secondary circulation is added after soaking, so that the dissolved pollutants can be washed away in time to prevent them from adhering to the surface of the filter element again; the secondary circulation step further enhances the cleaning depth, ensuring that the surface and interior of the filter element are completely clean, providing protection for subsequent operation.

[0066] In some embodiments, before step 101, the aforementioned safety filter element cleaning method may further include: obtaining pressure difference data between the third fluid port 443 and the fourth fluid port 444; and generating a filter element cleaning signal when the pressure difference data at the current moment is greater than the preset pressure difference.

[0067] In some examples, the pressure difference data refers to the pressure difference between the water inlet (third fluid port 443) and the water outlet (fourth fluid port 444) of the target security filter 441 during operation, reflecting the degree of blockage or contamination of the filter element; the pressure data of the inlet and outlet can be collected in real time and the pressure difference value can be calculated by the pressure difference sensor installed in the third fluid port 443 and the fourth fluid port 444; for example, if the pressure of the water inlet is 0.8MPa and the pressure of the water outlet is 0.3MPa, the pressure difference data is 0.5MPa. The preset pressure difference refers to a preset pressure difference threshold. When the pressure difference data of the target security filter 441 exceeds this threshold, it is determined that the filter element needs to be cleaned; for example, according to the type of filter element, the preset pressure difference is set to 0.4MPa, and the cleaning signal is triggered when the pressure difference data exceeds 0.4MPa.

[0068] Exemplarily, before step 101, the pressure difference data between the third fluid port 443 and the fourth fluid port 444 is monitored in real time; if the pressure difference data at the current moment (such as 0.5MPa) is greater than the set preset pressure difference (such as 0.4MPa), it is determined that the filter element is seriously contaminated, and a filter element cleaning signal is automatically generated, and the cleaning process is started; through this step, the filter element status can be efficiently judged to ensure the timeliness and accuracy of the cleaning operation.

[0069] Through the implementation of the above-mentioned embodiments, the pressure difference data of the security filter is monitored in real time, the degree of contamination of the filter element is dynamically determined, and the cleaning operation is accurately triggered to avoid excessive or insufficient cleaning; and through automated monitoring and control, human intervention is reduced, maintenance costs are reduced, and the service life of the equipment is extended.

[0070] In some embodiments, the aforementioned generation of a filter element cleaning signal when the pressure difference data at the current moment is greater than the preset pressure difference may include: when the pressure difference data at the current moment is greater than the preset pressure difference, judging the type of pollutant in the target safety filter 441 based on the pressure difference data of the sixth preset time length, and generating a filter element cleaning signal with information on the type of pollutant.

[0071] In some examples, the sixth preset time period refers to the historical time period for continuously monitoring the pressure difference change after the pressure difference data exceeds the preset threshold value. The type of pollutants in the filter element can be determined by analyzing the change trend and amplitude of the pressure difference. A reasonable monitoring time period (such as 7 days) can be set according to the accumulation rate and cleaning law of common pollutant types; the main pollutant type in the filter element (such as biological organic matter or inorganic scaling) can be determined by analyzing the change trend of the pressure difference data within the sixth preset time period (such as rising speed, fluctuation amplitude) and other external parameters (such as operating medium characteristics, environmental conditions). The pollutant type indicates the main pollutant category that causes the filter element to be blocked, which can be divided into biological organic deposition types (such as microorganisms, sticky organic matter) and inorganic scaling types (such as mineral deposition, salt crystallization).

[0072] Exemplarily, after the pressure difference data exceeds a preset threshold (such as 0.4 MPa), the pressure difference change trend within the sixth preset time period (such as 7 days) of historical continuous monitoring is read; for example, if the pressure difference rises rapidly and fluctuates greatly during this period, combined with external parameters (such as the presence of organic matter in the operating water quality), the pollutant type is judged to be "biological organic deposition"; then a filter element cleaning signal with pollutant type information is generated, and subsequent processes are triggered, such as using alkaline agents such as 0.1% sodium hydroxide solution for cleaning, to achieve targeted cleaning operations.

[0073] Through the implementation of the above embodiment, the type of filter element contaminants is analyzed using pressure difference data, and a targeted cleaning solution is provided, which can improve the cleaning effect.

[0074] In some embodiments, the aforementioned step 101 may include: when the pollutant type in the aforementioned filter element cleaning signal is a biological organic deposition type, injecting a first pre-pharmaceutical into the cleaning liquid tank 410, wherein the first pre-pharmaceutical may include a 0.1% concentration of sodium hydroxide solution, a benzophenone fungicide and sodium dodecylbenzene sulfonate; when the pollutant type in the aforementioned filter element cleaning signal is an inorganic scaling type, injecting a second pre-pharmaceutical into the cleaning liquid tank 410, and the second pre-pharmaceutical may include a 2% concentration of citric acid solution.

[0075] In some examples, the first pre-medicated agent is a cleaning agent prepared for biological organic deposition type pollutants (such as microbial flora, organic matter, etc.) present in the filter element, and is used to decompose, remove sticky organic matter and inhibit microbial reproduction; when preparing the first pre-medicated agent, 10 liters of 0.1% sodium hydroxide solution can be injected into the agent barrel, and 50 milliliters of benzophenone fungicides and 10 milliliters of sodium dodecylbenzene sulfonate are added at the same time, and then the solution is fully stirred and injected into the cleaning liquid tank 410. The second pre-medicated agent is a cleaning agent prepared for inorganic scaling type pollutants (such as mineral deposition, salt crystals) present in the filter element, and is used to dissolve inorganic sediments; when preparing the second pre-medicated agent, 200 grams of citric acid powder can be dissolved in 10 liters of pure water, and stirred evenly to obtain a 2% concentration of citric acid solution, which is fully stirred and injected into the cleaning liquid tank 410.

[0076] Exemplarily, after receiving the filter element cleaning signal, if the pollutant type is "biological organic deposition type", the first pre-medicated agent (such as a mixture of 0.1% sodium hydroxide solution, bactericide and sodium dodecylbenzene sulfonate) is automatically injected from the agent barrel into the cleaning liquid tank 410 to decompose and remove microorganisms and organic pollutants; if the pollutant type is "inorganic scaling type", the second pre-medicated agent (such as 2% citric acid solution) is injected instead to dissolve the inorganic deposits on the filter element, ensuring that the cleaning operation is targeted and efficient.

[0077] Through the implementation of the above-mentioned embodiments, different cleaning agents are selected for different types of pollutants (such as biological organic pollutants and inorganic scaling), thereby enhancing the targetedness and effectiveness of cleaning, effectively solving the problem of incomplete filter element cleaning under different pollution conditions, and improving the universality and reliability of the security filter element cleaning method provided in the embodiments of the present application.

[0078] Furthermore, as an implementation of the aforementioned method embodiment, the present application also provides a security filter cartridge cleaning device for implementing the aforementioned method embodiment. The device embodiment corresponds to the aforementioned method embodiment. For ease of reading, the present security filter cartridge cleaning device embodiment will no longer repeat the details of the aforementioned method embodiment one by one, but it should be clear that the device in the present application embodiment can correspond to and implement all the contents of the aforementioned method embodiment. Figure 3As shown, the security filter element cleaning device 20 includes: a liquid tank filling unit 201 and a valve control unit 202, wherein the liquid tank filling unit 201 is used to respond to the filter element cleaning signal for the target security filter 441, and inject the cleaning agent into the cleaning liquid tank 410; the valve control unit 202 is used to open the first valve 421, the second valve 422 and the third valve 423, close the fourth valve 424 and the fifth valve 425, and open the cleaning pump 430 for a first preset time, so that the cleaning agent is discharged according to the cleaning liquid tank 410, the first valve 421 and the fifth valve 425. , the second valve 422, the target security filter 441 and the third valve 423 are sequentially circulated, wherein the first valve 421 is a valve disposed between the first fluid port 411 of the cleaning liquid tank 410 and the cleaning pump 430, the second valve 422 is a valve disposed between the cleaning pump 430 and the third fluid port 443 of the target security filter 441, the third valve 423 is a valve disposed between the fourth fluid port 444 of the target security filter 441 and the second fluid port 412 of the cleaning liquid tank 410, and the fourth valve 424 is a valve disposed between the fourth fluid port 444 of the target security filter 441 and the second fluid port 412 of the cleaning liquid tank 410. The valve between the first pipeline section and the second pipeline section, the first pipeline section is the pipeline section between the second valve 422 and the third fluid port 443, and the second pipeline section is the pipeline section between the third valve 423 and the second fluid port 412; the valve control unit 202 is also used to close the valve and the cleaning pump 430 in the open state, and open the first drain port 413 and the second drain port 442 to drain the cleaning agent, wherein the first drain port 413 is the drain port of the cleaning liquid tank 410, and the second drain port 442 is the drain port of the security filter; the liquid tank filling unit 201, It is also used to inject cleaning water into the cleaning liquid tank 410; the valve control unit 202 is also used to open the first valve 421, the second valve 422 and the third valve 423, and to open the cleaning pump 430 for a second preset time, so that the cleaning water circulates in the order of the cleaning liquid tank 410, the first valve 421, the second valve 422, the target safety filter 441 and the third valve 423; the valve control unit 202 is also used to close the valves and the cleaning pump 430 that are in the open state, and to open the first drain port 413 and the second drain port 442 to drain the cleaning water.

[0079] In some embodiments, the valve control unit 202 is also used to open the fourth valve 424 and the fifth valve 425, close the second valve 422 and the third valve 423, and turn on the cleaning pump 430 for a third preset time so that the cleaning water circulates in the order of the cleaning liquid tank 410, the first valve 421, the fifth valve 425, the target safety filter 441 and the fourth valve 424.

[0080] In some embodiments, the valve control unit 202 is further configured to close the first valve 421 , the second valve 422 , the third valve 423 and the cleaning pump 430 for a fourth preset time period so that the cleaning agent can be immersed in the target safety filter 441 .

[0081] In some embodiments, the valve control unit 202 is also used to open the first valve 421, the second valve 422 and the third valve 423, and turn on the cleaning pump 430 for a fifth preset time period so that the cleaning agent circulates in the order of the cleaning liquid tank 410, the first valve 421, the second valve 422, the target safety filter 441 and the third valve 423.

[0082] In some embodiments, the safety filter element cleaning device 20 includes: a signal generating unit for obtaining the pressure difference data between the third fluid port 443 and the fourth fluid port 444; generating a filter element cleaning signal when the pressure difference data at the current moment is greater than the preset pressure difference.

[0083] In some embodiments, the signal generating unit is also used to judge the type of pollutants in the target safety filter 441 according to the pressure difference data of the sixth preset time period when the pressure difference data at the current moment is greater than the preset pressure difference, and generate a filter element cleaning signal with information on the pollutant type.

[0084] In some embodiments, the liquid tank injection unit 201 is also used to inject a first pre-pharmaceutical into the cleaning liquid tank 410 when the pollutant type in the filter element cleaning signal is a biological organic deposition type, wherein the first pre-pharmaceutical includes a 0.1% sodium hydroxide solution, a benzophenone fungicide, and sodium dodecylbenzene sulfonate; when the pollutant type in the filter element cleaning signal is an inorganic scaling type, a second pre-pharmaceutical is injected into the cleaning liquid tank 410, and the second pre-pharmaceutical includes a 2% citric acid solution. The present application also provides a computer-readable storage medium, which stores computer executable instructions or computer programs. When the computer executable instructions or computer programs are executed by a processor, the processor will be caused to execute any step of the security filter element cleaning method provided in the present application.

[0085] In some embodiments, the computer-readable storage medium may be a random access memory (RAM), a read-only memory (ROM), a flash memory, a magnetic surface memory, an optical disk, or a compact disc read-only memory (CD-ROM); or it may be various devices including one or any combination of the above memories.

[0086] In some embodiments, computer executable instructions may be in the form of a program, software, software module, script or code, written in any form of programming language (including compiled or interpreted languages, or declarative or procedural languages), and may be deployed in any form, including as a stand-alone program or as a module, component, subroutine or other unit suitable for use in a computing environment.

[0087] In some embodiments, computer-executable instructions may, but need not, correspond to a file in a file system, may be stored as part of a file storing other programs or data, for example, in one or more scripts in a HyperText Markup Language (HTML) document, in a single file dedicated to the program in question, or in multiple coordinated files (e.g., files storing one or more modules, subroutines, or code portions).

[0088] In some embodiments, computer executable instructions may be deployed to be executed on one electronic device, or on multiple electronic devices located at one site, or on multiple electronic devices distributed at multiple sites and interconnected by a communication network.

[0089] like Figure 4 As shown, the present application also provides an electronic device 30, including a memory 310, a processor 320, and a computer program 311 stored in the memory 310 and executable on the processor, and when the processor 320 executes the computer program 311, any step of the above-mentioned security filter element cleaning method is implemented.

[0090] The present application also provides a computer program product, which includes a computer program or computer executable instructions, and the computer program or computer executable instructions are stored in a computer-readable storage medium. The processor of the electronic device reads the computer program or computer executable instructions from the computer-readable storage medium, and the processor executes the computer program or computer executable instructions, so that the electronic device performs any step of the security filter element cleaning method described above in the present application.

[0091] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A method for cleaning a security filter element, characterized in that: include: In response to a filter element cleaning signal for a target security filter, a cleaning agent is injected into a cleaning liquid tank; Open the first valve, the second valve and the third valve, close the fourth valve and the fifth valve, and turn on the cleaning pump for a first preset time, so that the cleaning agent circulates in the order of the cleaning liquid tank, the first valve, the second valve, the target security filter and the third valve, wherein the first valve is a valve disposed between the first fluid port of the cleaning liquid tank and the cleaning pump, the second valve is a valve disposed between the cleaning pump and the third fluid port of the target security filter, the third valve is a valve disposed between the fourth fluid port of the target security filter and the second fluid port of the cleaning liquid tank, the fourth valve is a valve disposed between the first pipeline segment and the second pipeline segment, the first pipeline segment is a pipeline segment between the second valve and the third fluid port, and the second pipeline segment is a pipeline segment between the third valve and the second fluid port; Close the valve and the cleaning pump in the open state, and open the first drain port and the second drain port to drain the cleaning agent, wherein the first drain port is the drain port of the cleaning liquid tank, and the second drain port is the drain port of the security filter; injecting cleaning water into the cleaning liquid tank; Opening the first valve, the second valve and the third valve, and turning on the cleaning pump for a second preset time, so that the cleaning water circulates in the order of the cleaning liquid tank, the first valve, the second valve, the target security filter and the third valve; The valve in the open state and the cleaning pump are closed, and the first drain port and the second drain port are opened to drain the cleaning water.

2. The method for cleaning the filter element of the security filter according to claim 1, characterized in that: Before closing the valve and the cleaning pump in an open state and opening the first drain port and the second drain port to drain the cleaning water, the security filter element cleaning method further includes: The fourth valve and the fifth valve are opened, the second valve and the third valve are closed, and the cleaning pump is turned on for a third preset time so that the cleaning water circulates in the order of the cleaning liquid tank, the first valve, the fifth valve, the target safety filter and the fourth valve.

3. The method for cleaning the filter element of the security filter according to claim 2, characterized in that: Before closing the valve and the cleaning pump in the open state and opening the first drain port and the second drain port to drain the cleaning agent, the security filter element cleaning method further includes: The first valve, the second valve, the third valve and the cleaning pump are closed for a fourth preset time period to allow the cleaning agent to soak in the target security filter.

4. The method for cleaning the filter element of the security filter according to claim 3, characterized in that: After closing the first valve, the second valve, the third valve and the cleaning pump for a fourth preset time to allow the cleaning agent to soak into the target security filter, the security filter element cleaning method further includes: The first valve, the second valve and the third valve are opened, and the cleaning pump is turned on for a fifth preset time so that the cleaning agent circulates in the order of the cleaning liquid tank, the first valve, the second valve, the target safety filter and the third valve.

5. The method for cleaning the filter element of the security filter according to claim 1, characterized in that: Before injecting a cleaning agent into a cleaning liquid tank in response to a filter element cleaning signal for a target security filter, the security filter filter element cleaning method further comprises: acquiring pressure difference data between the third fluid port and the fourth fluid port; When the pressure difference data at the current moment is greater than the preset pressure difference, the filter element cleaning signal is generated.

6. The method for cleaning the filter element of the security filter according to claim 5, characterized in that: When the pressure difference data at the current moment is greater than the preset pressure difference, generating the filter element cleaning signal comprises: When the pressure difference data at the current moment is greater than the preset pressure difference, the type of pollutant in the target safety filter is judged according to the pressure difference data of the sixth preset time period, and a filter element cleaning signal with information on the pollutant type is generated.

7. The method for cleaning the filter element of the security filter according to claim 6, characterized in that: In response to the filter element cleaning signal for the target security filter, injecting the cleaning agent into the cleaning liquid tank comprises: When the pollutant type in the filter element cleaning signal is a biological organic deposition type, injecting a first pre-pharmaceutical into the cleaning liquid tank, wherein the first pre-pharmaceutical includes a 0.1% concentration of sodium hydroxide solution, a benzophenone fungicide and sodium dodecylbenzene sulfonate; When the pollutant type in the filter element cleaning signal is an inorganic scaling type, a second pre-medicated agent is injected into the cleaning liquid tank, wherein the second pre-medicated agent includes a citric acid solution with a concentration of 2%.

8. A security filter element cleaning device, characterized in that: include: A liquid tank filling unit, used for injecting a cleaning agent into a cleaning liquid tank in response to a filter element cleaning signal for a target security filter; a valve control unit, configured to open the first valve, the second valve and the third valve, close the fourth valve and the fifth valve, and open the cleaning pump for a first preset time, so that the cleaning agent circulates in the order of the cleaning liquid tank, the first valve, the second valve, the target security filter and the third valve, wherein the first valve is a valve disposed between the first fluid port of the cleaning liquid tank and the cleaning pump, the second valve is a valve disposed between the cleaning pump and the third fluid port of the target security filter, the third valve is a valve disposed between the fourth fluid port of the target security filter and the second fluid port of the cleaning liquid tank, the fourth valve is a valve disposed between the first pipeline segment and the second pipeline segment, the first pipeline segment is a pipeline segment between the second valve and the third fluid port, and the second pipeline segment is a pipeline segment between the third valve and the second fluid port; The valve control unit is further used to close the valve and the cleaning pump in an open state, and open the first drain port and the second drain port to drain the cleaning agent, wherein the first drain port is the drain port of the cleaning liquid tank, and the second drain port is the drain port of the security filter; The liquid tank filling unit is also used to inject cleaning water into the cleaning liquid tank; The valve control unit is further used to open the first valve, the second valve and the third valve, and to open the cleaning pump for a second preset time, so that the cleaning water circulates in the order of the cleaning liquid tank, the first valve, the second valve, the target security filter and the third valve; The valve control unit is further used to close the valve and the cleaning pump that are in an open state, and to open the first drain port and the second drain port to drain the cleaning water.

9. An electronic device, comprising: A memory and a processor, wherein the processor is used to implement the steps of the security filter element cleaning method as described in any one of claims 1 to 7 when executing the computer program stored in the memory.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the security filter element cleaning method as described in any one of claims 1-7 are implemented.

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