Water purification system, control method and control device thereof and computer readable storage medium

Abstract

The invention relates to the technical field of water purifiers, and discloses a water purification system, a control method and a control device thereof, and a computer readable storage medium, the water purification system comprises: a filter element assembly, which comprises an active carbon filtering mechanism, the active carbon filtering mechanism comprises a front active carbon filter element; the ultrasonic processor is arranged on the activated carbon filtering mechanism; the liquid level detection device is arranged on the filter element assembly. The liquid level detection device is arranged on the filter element assembly, the liquid level detection device can detect the liquid level of the filter element assembly, when the liquid level in the filter element assembly meets the requirement, the ultrasonic processor works, and no-load dry burning of the ultrasonic processor is prevented.

Description

Technical Field

[0001] This invention relates to the field of water purifier technology, specifically to water purification systems and their control methods, control devices, and computer-readable storage media. Background Technology

[0002] Water purifiers purify tap water through their built-in purification system. This system typically includes four filter stages: a PP cotton filter, a pre-activated carbon filter, an RO membrane filter, and a post-activated carbon filter, with the RO membrane filter being the core component. To effectively extend the lifespan of the RO filter, pretreatment is often used to ensure the quality of the incoming water. The water quality requirements mainly include turbidity ≤ 1 NTU, SDI15 (sludge density index) < 5, and residual chlorine concentration < 0.1 mg / L. While PP cotton and ultrafiltration filters in the pretreatment system can effectively reduce turbidity and SDI15, only activated carbon filters can effectively remove residual chlorine. However, activated carbon filters have a shorter lifespan compared to other filter types, requiring frequent replacement.

[0003] To extend the lifespan of activated carbon filters, related technologies disclose water purifiers and their regeneration control methods. When the activated carbon filter is filled with water, two ultrasonic processors emit ultrasonic waves of different frequencies to induce ultrasonic cavitation in the water. The high-pressure shock waves generated by the bursting of bubbles simultaneously clean the adsorbates on the surface of the activated carbon filter and the internal micropores, thereby achieving in-situ regeneration of the activated carbon filter in the water purifier and extending its lifespan.

[0004] The aforementioned technologies may result in the ultrasonic processor running out of water in the filter element during operation, causing the ultrasonic processor to burn out and be damaged. Summary of the Invention

[0005] In view of this, the present invention provides a water purification system and its control method, control device, and computer-readable storage medium to solve the problem of ultrasonic processors being prone to dry burning in related technologies.

[0006] In a first aspect, the present invention provides a water purification system, comprising:

[0007] A filter assembly, including an activated carbon filtration mechanism, wherein the activated carbon filtration mechanism includes a pre-activated carbon filter element;

[0008] An ultrasonic processor is located in the activated carbon filtration mechanism;

[0009] A liquid level detection device is installed on the filter element assembly.

[0010] Beneficial effects: The activated carbon filtration system includes a pre-activated carbon filter cartridge, which removes organic matter, some heavy metals, residual chlorine, discoloration, and odors from the raw water. A liquid level detection device is installed in the filter cartridge assembly to monitor the liquid level. The ultrasonic processor only activates when the liquid level meets the requirements, preventing it from running dry. During operation, the ultrasonic processor emits ultrasonic waves that induce ultrasonic cavitation in the water. The high-pressure shock waves generated by the bursting of bubbles and the high-speed micro-jet flow desorb the adsorbate from the activated carbon, thus regenerating the activated carbon and extending the service life of the activated carbon filtration system.

[0011] In one alternative embodiment, the activated carbon filtration mechanism includes a bottom end cap, into which the ultrasonic processor is embedded.

[0012] Beneficial effects: By embedding the ultrasonic processor into the bottom end cap, there is no need to make major adjustments to the activated carbon filtration mechanism, resulting in a simpler overall structure.

[0013] In one optional embodiment, the filter assembly further includes a pretreatment filter element, with the raw water inlet connected to the inlet of the pretreatment filter element, and the outlet of the pretreatment filter element connected to the first inlet of the activated carbon filtration mechanism via a first pipeline, the first pipeline being equipped with an inlet valve.

[0014] Beneficial effects: Raw water is first filtered through a pretreatment filter cartridge, and the filtered water then enters the activated carbon filter mechanism through the first pipeline for further filtration, ensuring the quality of the purified water. An inlet valve is installed in the first pipeline; when the activated carbon filter cartridge needs regeneration and cleaning, the inlet valve can be closed to ensure effective regeneration and cleaning.

[0015] In one optional embodiment, the filter element assembly further includes a reverse osmosis filtration mechanism. The first outlet of the activated carbon filtration mechanism is connected to the inlet of the reverse osmosis filtration mechanism via a second pipeline. The second pipeline is equipped with a pump. The wastewater outlet of the reverse osmosis filtration mechanism is connected to a wastewater pipe, and the wastewater pipe is equipped with a wastewater valve.

[0016] Beneficial effects: Raw water is first filtered through a pretreatment filter cartridge. The filtered water then enters the activated carbon filter mechanism through the first pipeline for secondary filtration, and then enters the reverse osmosis filter mechanism for further purification. The reverse osmosis filter mechanism has extremely high purification precision, filtering out all impurity molecules except water molecules. By installing a pump in the second pipeline and a wastewater valve in the wastewater pipe, when the activated carbon filter cartridge needs to be regenerated and cleaned, the inlet valve, pump, and wastewater valve can all be closed to ensure the regeneration and cleaning effect of the activated carbon filter cartridge.

[0017] In one optional embodiment, the activated carbon filtration mechanism is a composite filter element, and the activated carbon filtration mechanism further includes a post-activated carbon filter element. The second water inlet of the activated carbon filtration mechanism is connected to the pure water outlet of the reverse osmosis filtration mechanism through a third pipeline, and the third pipeline is equipped with a check valve.

[0018] Beneficial effects: Raw water is first filtered through a pre-treatment filter cartridge. The filtered water then enters the activated carbon filter mechanism through the first pipeline for further filtration, and then enters the reverse osmosis filter mechanism for purification. The reverse osmosis filter mechanism has extremely high purification precision and can filter out all impurity molecules except water molecules. After purification by the reverse osmosis filter mechanism, it enters the activated carbon filter mechanism again. After purification by the post-activated carbon filter cartridge, it flows to the pure water outlet. The post-activated carbon filter cartridge can adjust the taste of the water. Since the activated carbon filter mechanism is a composite filter cartridge, the ultrasonic processor is located in the activated carbon filter mechanism. When the ultrasonic processor is working, it emits ultrasonic waves to cause ultrasonic cavitation effect in the water. The high-pressure shock wave generated by the bursting of bubbles and the high-speed micro-jet cause the adsorbate of the activated carbon to desorb, thereby regenerating the activated carbon and improving the service life of the pre-activated carbon filter cartridge and the post-activated carbon filter cartridge.

[0019] In one alternative embodiment, the liquid level detection device is located in one of the activated carbon filtration mechanism, the reverse osmosis filtration mechanism, and the pretreatment filter element.

[0020] Secondly, the present invention also provides a control method for a water purification system, the water purification system including a filter element assembly, an ultrasonic processor, and a liquid level detection device, the filter element assembly including an activated carbon filtration mechanism, the activated carbon filtration mechanism including a pre-activated carbon filter element, the ultrasonic processor being disposed in the activated carbon filtration mechanism, and the liquid level detection device being disposed in the filter element assembly, the control method including:

[0021] When the activated carbon filter needs to be cleaned and regenerated, obtain the liquid level of the filter element assembly;

[0022] If the liquid level reaches the preset level, the water purification system will stop producing water and the ultrasonic processor will operate for a first preset time.

[0023] Beneficial effects: When the activated carbon filter needs cleaning and regeneration, the liquid level of the filter element is monitored. When the liquid level reaches the preset level, the water purification system stops producing water and the ultrasonic processor is activated to prevent it from running dry. When the ultrasonic processor is working, it emits ultrasonic waves that cause ultrasonic cavitation in the water. The high-pressure shock waves generated by the bursting of bubbles and the high-speed micro-jet flow desorb the adsorbate from the activated carbon, thus regenerating the activated carbon and extending the service life of the activated carbon filter.

[0024] In one optional embodiment, the filter element assembly further includes a pretreatment filter element, the outlet of which is connected to the first inlet of the activated carbon filtration mechanism via a first pipeline, the first pipeline being equipped with an inlet valve. The filter element assembly also includes a reverse osmosis filtration mechanism, the first outlet of which is connected to the inlet of the reverse osmosis filtration mechanism via a second pipeline, the second pipeline being equipped with a pump. The wastewater outlet of the reverse osmosis filtration mechanism is connected to a wastewater pipe, the wastewater pipe being equipped with a wastewater valve. Controlling the water purification system to stop water production includes:

[0025] Control the inlet valve, pump, and wastewater valve to close.

[0026] Beneficial effects: When the activated carbon filter needs to be cleaned and regenerated, the liquid level of the filter element is obtained. When the liquid level of the filter element reaches the preset level, the inlet valve, pump, and wastewater valve are closed to stop water production. The ultrasonic processor is then activated, emitting ultrasonic waves to cause ultrasonic cavitation in the water. The high-pressure shock waves generated by the bursting of bubbles and the high-speed micro-jet desorb the adsorbate from the activated carbon, thereby regenerating the activated carbon and improving the service life of the activated carbon filter.

[0027] In one optional implementation, after the ultrasonic processor has been operating for a first preset duration, the control method further includes:

[0028] Control the ultrasonic processor to soak for a second preset time.

[0029] Beneficial effects: After controlling the ultrasonic processor to work for a first preset time, allowing it to stand and soak for a second preset time can completely release the adsorbents generated during the regeneration of the activated carbon filter.

[0030] In one optional implementation, the control method includes repeatedly executing a first preset duration of operation for the ultrasonic processor and a second preset duration of immersion for the ultrasonic processor a preset number of times.

[0031] Beneficial effects: Repeatedly executing the first preset duration of operation of the ultrasonic processor and the second preset duration of immersion of the ultrasonic processor can ensure the regeneration effect of the activated carbon filter element.

[0032] In an optional implementation, the control method further includes:

[0033] If the liquid level does not reach the preset level, control the water purification system to produce water until the liquid level reaches the preset level.

[0034] Beneficial effect: If the liquid level does not reach the preset level, the water purification system will be controlled to produce water until the liquid level reaches the preset level, which can prevent the ultrasonic processor from burning dry under no-load.

[0035] Thirdly, the present invention also provides a control device for a water purification system. The water purification system includes a filter element assembly, an ultrasonic processor, and a liquid level detection device. The filter element assembly includes an activated carbon filtration mechanism, the activated carbon filtration mechanism including a pre-activated carbon filter element, the ultrasonic processor being disposed in the activated carbon filtration mechanism, and the liquid level detection device being disposed in the filter element assembly. The control device includes:

[0036] When the activated carbon filter needs to be cleaned and regenerated, obtain the liquid level of the filter element assembly;

[0037] If the liquid level reaches the preset level, the water purification system will stop producing water and the ultrasonic processor will operate for the first preset time.

[0038] Fourthly, the present invention also provides a computer-readable storage medium storing computer instructions for causing a computer to execute the control method of the water purification system. Attached Figure Description

[0039] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0040] Figure 1 This is a schematic diagram of a water purification system according to an embodiment of the present invention;

[0041] Figure 2 This is a schematic diagram of a water purification system according to an embodiment of the present invention;

[0042] Figure 3 This is a schematic diagram of a water purification system according to an embodiment of the present invention;

[0043] Figure 4 This is a flowchart of a control method for a water purification system according to an embodiment of the present invention.

[0044] Explanation of reference numerals in the attached figures:

[0045] 1. Activated carbon filtration mechanism; 2. Ultrasonic processor; 3. Liquid level detection device; 4. Pretreatment filter element; 5. Raw water inlet switch; 6. First pipeline; 7. Inlet valve; 8. Reverse osmosis filtration mechanism; 9. Second pipeline; 10. Pump; 11. Wastewater pipe; 12. Wastewater valve; 13. Third pipeline; 14. Check valve; 15. Pure water outlet switch. Detailed Implementation

[0046] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0047] Water purifiers purify tap water through their built-in purification system. This system typically includes four filter stages: a PP cotton filter, a pre-activated carbon filter, an RO membrane filter, and a post-activated carbon filter, with the RO membrane filter being the core component. To effectively extend the lifespan of the RO filter, pretreatment is often used to ensure the quality of the incoming water. The water quality requirements mainly include turbidity ≤ 1 NTU, SDI15 (sludge density index) < 5, and residual chlorine concentration < 0.1 mg / L. While PP cotton and ultrafiltration filters in the pretreatment system can effectively reduce turbidity and SDI15, only activated carbon filters can effectively remove residual chlorine. However, activated carbon filters have a shorter lifespan compared to other filter types, requiring frequent replacement.

[0048] To extend the lifespan of activated carbon filters, related technologies disclose water purifiers and their regeneration control methods. When the activated carbon filter is filled with water, two ultrasonic processors emit ultrasonic waves of different frequencies to induce ultrasonic cavitation in the water. The high-pressure shock waves generated by the bursting of bubbles simultaneously clean the adsorbates on the surface of the activated carbon filter and the internal micropores, thereby achieving in-situ regeneration of the activated carbon filter in the water purifier and extending its lifespan.

[0049] The aforementioned technologies may result in the ultrasonic processor running out of water in the filter element during operation, causing the ultrasonic processor to burn out and be damaged.

[0050] The following is combined Figures 1 to 4 The following describes embodiments of the present invention.

[0051] According to an embodiment of the present invention, in a first aspect, a water purification system is provided, including a filter cartridge assembly, an ultrasonic processor 2, and a liquid level detection device 3.

[0052] The filter element assembly includes an activated carbon filtration mechanism 1, which includes a pre-activated carbon filter element; an ultrasonic processor 2 is located in the activated carbon filtration mechanism 1; and a liquid level detection device 3 is located in the filter element assembly.

[0053] In this embodiment, the activated carbon filtration mechanism 1 includes a pre-activated carbon filter element. This pre-activated carbon filter element can remove organic matter, some heavy metals, residual chlorine, discoloration, and odors from the raw water. A liquid level detection device 3 is installed in the filter element assembly to detect the liquid level. When the liquid level in the filter element assembly meets the requirements, the ultrasonic processor 2 is activated to prevent it from running dry. When the ultrasonic processor 2 is working, it emits ultrasonic waves to induce ultrasonic cavitation in the water. The high-pressure shock waves generated by the bursting of bubbles and the high-speed micro-jet flow desorb the adsorbate from the activated carbon, thereby regenerating the activated carbon and improving the service life of the activated carbon filtration mechanism 1.

[0054] In one specific embodiment, the liquid level detection device 3 is a liquid level switch. In this embodiment, the liquid level switch can accurately detect the liquid level, making it easier to control.

[0055] In one embodiment, such as Figure 1 As shown, the activated carbon filtration mechanism 1 includes a bottom end cap, and the ultrasonic processor 2 is embedded in the bottom end cap.

[0056] In this embodiment, by embedding the ultrasonic processor 2 into the bottom end cap, there is no need to make significant adjustments to the activated carbon filter mechanism 1, resulting in a simpler overall structure.

[0057] Of course, in other alternative embodiments, such as Figure 2 As shown, the activated carbon filter mechanism 1 includes a housing, within which the ultrasonic processor 2 can be housed.

[0058] In another alternative embodiment, the activated carbon mechanism includes a top end cap into which the ultrasonic processor 2 is embedded.

[0059] In one embodiment, the filter assembly further includes a pretreatment filter element 4, the raw water inlet is connected to the inlet of the pretreatment filter element 4, and the outlet of the pretreatment filter element 4 is connected to the first inlet of the activated carbon filter mechanism 1 through a first pipeline 6, the first pipeline 6 being provided with an inlet valve 7.

[0060] In this embodiment, the raw water is first filtered through the pretreatment filter element 4, and the filtered water then enters the activated carbon filter mechanism 1 through the first pipeline 6 for further filtration, which ensures the quality of the purified water. By setting an inlet valve 7 in the first pipeline 6, the inlet valve 7 can be closed when the activated carbon filter element needs to be regenerated and cleaned, ensuring the regeneration and cleaning effect of the activated carbon filter element.

[0061] Specifically, such as Figure 1 As shown, a raw water inlet switch 5 is provided at the raw water inlet. When the raw water inlet switch 5 is opened, the raw water can enter the pretreatment filter element 4 for filtration.

[0062] Specifically, the pretreatment filter element 4 is generally a combination of PP or folded PP, ultrafiltration, and microfiltration to remove silt, rust, suspended matter, etc. from the raw water.

[0063] In one embodiment, the filter element assembly further includes a reverse osmosis filtration mechanism 8. The first outlet of the activated carbon filtration mechanism 1 is connected to the inlet of the reverse osmosis filtration mechanism 8 through a second pipeline 9. The second pipeline 9 is equipped with a pump 10. The wastewater outlet of the reverse osmosis filtration mechanism 8 is connected to a wastewater pipe 11, and the wastewater pipe 11 is equipped with a wastewater valve 12.

[0064] In this embodiment, the raw water is first filtered through the pretreatment filter element 4. The filtered water then enters the activated carbon filter mechanism 1 through the first pipeline 6 for further filtration, and then enters the reverse osmosis filter mechanism 8 for purification. The reverse osmosis filter mechanism 8 has extremely high purification precision and can filter out all impurity molecules except water molecules. By installing a pump 10 in the second pipeline 9 and a wastewater valve 12 in the wastewater pipe 11, when the activated carbon filter element needs to be regenerated and cleaned, the inlet valve 7, pump 10, and wastewater valve 12 can all be closed to ensure the regeneration and cleaning effect of the activated carbon filter element.

[0065] In one embodiment, the activated carbon filtration mechanism 1 is a composite filter element, and the activated carbon filtration mechanism 1 also includes a post-activated carbon filter element. The second water inlet of the activated carbon filtration mechanism 1 is connected to the pure water outlet of the reverse osmosis filtration mechanism 8 through a third pipeline 13, and the third pipeline 13 is equipped with a check valve 14.

[0066] In this embodiment, the raw water is first filtered through the pretreatment filter cartridge 4. The filtered water then enters the activated carbon filter mechanism 1 through the first pipeline 6 for further filtration, and then enters the reverse osmosis filter mechanism 8 for further filtration and purification. The reverse osmosis filter mechanism 8 has extremely high purification precision and can filter out all impurity molecules except water molecules. After purification by the reverse osmosis filter mechanism 8, the water enters the activated carbon filter mechanism 1 again. After purification by the post-activated carbon filter cartridge, the water flows to the pure water outlet. The post-activated carbon filter cartridge can adjust the taste of the water. Since the activated carbon filter mechanism 1 is a composite filter cartridge, the ultrasonic processor 2 is located in the activated carbon filter mechanism 1. When the ultrasonic processor 2 is working, it emits ultrasonic waves to cause ultrasonic cavitation effect in the water. The high-pressure shock wave generated by the bursting of bubbles and the high-speed micro-jet cause the adsorbate of the activated carbon to desorb, thereby regenerating the activated carbon and improving the service life of the pre-activated carbon filter cartridge and the post-activated carbon filter cartridge.

[0067] Specifically, the pure water outlet is equipped with a pure water outlet switch 15. When the pure water outlet switch 15 is turned on, the user can take pure water.

[0068] In this embodiment, the liquid level detection device 3 is located in one of the activated carbon filtration mechanism 1, the reverse osmosis filtration mechanism 8, and the pretreatment filter element 4.

[0069] Specifically in one embodiment, such as Figure 1 As shown, the liquid level detection device 3 is installed in the activated carbon filter mechanism 1. Since the activated carbon filter mechanism 1 includes a pre-activated carbon filter element and a post-activated carbon filter element, when the liquid level detection device 3 detects that the liquid level in the activated carbon filter mechanism 1 meets the requirements, the ultrasonic processor 2 can be used to clean and regenerate the pre-activated carbon filter element and the post-activated carbon filter element.

[0070] Specifically in one embodiment, such as Figure 2 As shown, the liquid level detection device 3 is located on the pretreatment filter element 4. When the liquid level detection device 3 detects that the pretreatment filter element 4 is full of water, it indicates that the tap water supply is normal. According to the water inlet direction of the water purification system, the next step is to enter the activated carbon filtration mechanism 1. Therefore, the activated carbon filtration mechanism 1 can be filled with water in 1-5 minutes of water purification.

[0071] Specifically in one embodiment, such as Figure 3 As shown, the liquid level detection device 3 is installed in the reverse osmosis filtration mechanism 8. According to the water inlet direction of the water purification system, when the reverse osmosis filtration mechanism 8 is full of water, it means that the activated carbon filtration mechanism 1 is full of water.

[0072] In this embodiment, the liquid level detection device 3 is preferably located in the activated carbon filtration mechanism 1.

[0073] According to an embodiment of the present invention, in a second aspect, a control method for a water purification system is provided. The water purification system includes a filter cartridge assembly, an ultrasonic processor 2, and a liquid level detection device 3. The filter cartridge assembly includes an activated carbon filtration mechanism 1, which includes a pre-activated carbon filter cartridge. The ultrasonic processor 2 is disposed in the activated carbon filtration mechanism 1, and the liquid level detection device 3 is disposed in the filter cartridge assembly. The control method includes:

[0074] When the activated carbon filter mechanism 1 needs to be cleaned and regenerated, obtain the liquid level of the filter element assembly;

[0075] If the liquid level reaches the preset level, the water purification system will stop producing water and the ultrasonic processor 2 will operate for a first preset time.

[0076] In this embodiment, when the activated carbon filter mechanism 1 needs cleaning and regeneration, the liquid level of the filter element assembly is obtained. When the liquid level of the filter element assembly reaches the preset level, the water purification system is controlled to stop water production, and the ultrasonic processor 2 is activated to prevent the ultrasonic processor 2 from running dry. When the ultrasonic processor 2 is working, it emits ultrasonic waves to cause ultrasonic cavitation in the water. The high-pressure shock waves generated by the bursting of bubbles and the high-speed micro-jet cause the adsorbate of the activated carbon to desorb, thereby regenerating the activated carbon and improving the service life of the activated carbon filter mechanism 1.

[0077] Specifically in one embodiment, such as Figure 1As shown, the liquid level detection device 3 is installed in the activated carbon filtration mechanism 1. Since the activated carbon filtration mechanism 1 includes a pre-activated carbon filter element and a post-activated carbon filter element, obtaining the liquid level of the filter element assembly specifically refers to obtaining the liquid level of the activated carbon filtration mechanism 1.

[0078] Specifically in one embodiment, such as Figure 2 As shown, the liquid level detection device 3 is located on the pretreatment filter element 4. When the liquid level detection device 3 detects that the pretreatment filter element 4 is full of water, it indicates that the tap water supply is normal. According to the water inlet direction of the water purification system, the next step is to enter the activated carbon filtration mechanism 1. Therefore, the activated carbon filtration mechanism 1 can be filled with water in 1-5 minutes of water purification.

[0079] Specifically in one embodiment, such as Figure 3 As shown, the liquid level detection device 3 is installed in the reverse osmosis filtration mechanism 8. According to the water inlet direction of the water purification system, when the reverse osmosis filtration mechanism 8 is full of water, it means that the activated carbon filtration mechanism 1 is full of water.

[0080] In one specific embodiment, when the activated carbon filter mechanism 1 needs to be cleaned and regenerated, it specifically includes when the cumulative water production flow of the water purification system reaches a preset flow.

[0081] In this embodiment, such as Figure 4 As shown, when the cumulative water production flow of the water purification system reaches the preset flow rate, the liquid level of the filter element assembly is obtained. When the liquid level of the filter element assembly reaches the preset level, the water purification system is controlled to stop water production, and the ultrasonic processor 2 is made to work for a first preset time to prevent the ultrasonic processor 2 from burning dry under no-load. When the ultrasonic processor 2 is working, it emits ultrasonic waves to cause ultrasonic cavitation effect in the water. The high-pressure shock wave generated by the bursting of bubbles and the high-speed micro-jet cause the adsorbate of the activated carbon to desorb, thereby regenerating the activated carbon and improving the service life of the activated carbon filter mechanism 1.

[0082] Specifically, the cumulative water production of the water purification system is Q, where Q = (n+1)q. Preferably, Q is 10000L-100000L, q is 1000-10000L, and n is 1-10.

[0083] In an alternative embodiment, the water pressure in the first pipe 6 and the second pipe 9 can be detected to determine whether the activated carbon filter mechanism 1 needs cleaning and regeneration. Specifically, if the ratio of the water pressure in the second pipe 9 to the water pressure in the first pipe 6 is lower, it indicates that the activated carbon filter mechanism 1 is severely clogged, and cleaning and regeneration of the activated carbon filter mechanism 1 is required. The liquid level of the filter element assembly is obtained, and when the liquid level of the filter element assembly reaches the preset level, the water purification system is controlled to stop water production, and the ultrasonic processor 2 is activated to prevent the ultrasonic processor 2 from running dry. When the ultrasonic processor 2 is working, it emits ultrasonic waves to cause ultrasonic cavitation in the water. The high-pressure shock waves generated by the bursting of bubbles and the high-speed micro-jet cause the adsorbate of the activated carbon to desorb, thereby regenerating the activated carbon and improving the service life of the activated carbon filter mechanism 1.

[0084] In an alternative embodiment, it can also be determined whether the activated carbon filter 1 needs to be cleaned and regenerated by detecting the residual chlorine rate of the effluent from the activated carbon filter 1.

[0085] In one embodiment, the filter assembly further includes a pretreatment filter element 4, the outlet of which is connected to the first inlet of the activated carbon filtration mechanism 1 via a first pipe 6. The first pipe 6 is equipped with an inlet valve 7. The filter assembly also includes a reverse osmosis filtration mechanism 8, the first outlet of the activated carbon filtration mechanism 1 and the inlet of the reverse osmosis filtration mechanism 8 via a second pipe 9. The second pipe 9 is equipped with a pump 10. The wastewater outlet of the reverse osmosis filtration mechanism 8 is connected to a wastewater pipe 11, and the wastewater pipe 11 is equipped with a wastewater valve 12. Controlling the water purification system to stop water production includes:

[0086] Control the inlet valve 7, pump 10, and wastewater valve 12 to close.

[0087] In this embodiment, when the activated carbon filter mechanism 1 needs to be cleaned and regenerated, the liquid level of the filter element assembly is obtained. When the liquid level of the filter element assembly reaches the preset liquid level, the inlet valve 7, pump 10, and wastewater valve 12 are controlled to close, and water production is stopped. The ultrasonic processor 2 is controlled to work. When the ultrasonic processor 2 works, it emits ultrasonic waves to cause ultrasonic cavitation effect in the water. The high-pressure shock wave generated by the bursting of bubbles and the high-speed micro-jet cause the adsorbate of the activated carbon to desorb, thereby regenerating the activated carbon and improving the service life of the activated carbon filter mechanism 1.

[0088] In one specific embodiment, the first preset duration can be 30-60 minutes.

[0089] It should be noted that if the ultrasonic processor 2 operates for too short a time, the activated carbon filter element will not regenerate completely; if the ultrasonic processor 2 operates for too long, it will result in high energy consumption and long operating time. By limiting the first preset time to the optimal range, the activated carbon filter element can be fully regenerated, while saving energy and time.

[0090] In one embodiment, after controlling the ultrasonic processor 2 to operate for a first preset time, the control method further includes:

[0091] Control the ultrasonic processor 2 to soak for a second preset time.

[0092] In this embodiment, after controlling the ultrasonic processor 2 to work for a first preset time, the ultrasonic processor 2 is left to stand and soak for a second preset time, which can completely precipitate the adsorbate generated by the regeneration of the activated carbon filter element.

[0093] In one specific embodiment, the second preset duration can be 1-10 hours.

[0094] It should be noted that if the soaking time is too short, the adsorbate generated during the regeneration of the activated carbon filter element cannot be completely released; if the soaking time is too long, the activated carbon filter element will be over-soaked. By limiting the second preset time to the optimal range, the adsorbate generated during regeneration can be completely released without affecting the normal use of the activated carbon filter element.

[0095] It should be noted that the "soaking" of the ultrasonic processor 2 specifically refers to the process of soaking the activated carbon filter element in the activated carbon filter mechanism 1 while the ultrasonic processor 2 is not in operation.

[0096] In one embodiment, the control method includes repeatedly executing the control of the ultrasonic processor 2 to operate for a first preset duration and controlling the ultrasonic processor 2 to remain immersed for a second preset duration and a preset number of times.

[0097] In this embodiment, repeatedly executing the first preset duration of operation of the ultrasonic processor 2 and the second preset duration of immersion of the ultrasonic processor 2 a preset number of times can ensure the regeneration effect of the activated carbon filter element.

[0098] In one specific embodiment, the preset number of times is 1-5.

[0099] After repeatedly executing the first preset duration of control for ultrasonic processor 2 and the second preset duration of control for ultrasonic processor 2 to stand still for a preset number of times, the water purification system will standby and the user can use it normally.

[0100] In one embodiment, the control method further includes:

[0101] If the liquid level does not reach the preset level, control the water purification system to produce water until the liquid level reaches the preset level.

[0102] In this embodiment, if the liquid level does not reach the preset liquid level, the water purification system is controlled to produce water until the liquid level reaches the preset liquid level, which can prevent the ultrasonic processor 2 from burning dry under no-load conditions.

[0103] According to an embodiment of the present invention, in a third aspect, a control device for a water purification system is provided. The water purification system includes a filter cartridge assembly, an ultrasonic processor 2, and a liquid level detection device 3. The filter cartridge assembly includes an activated carbon filtration mechanism 1, which includes a pre-activated carbon filter cartridge. The ultrasonic processor 2 is disposed in the activated carbon filtration mechanism 1, and the liquid level detection device 3 is disposed in the filter cartridge assembly. The control device includes:

[0104] The acquisition module is used to acquire the liquid level of the filter element assembly when the activated carbon filter mechanism 1 needs to be cleaned and regenerated;

[0105] The first control module is used to control the water purification system to stop producing water and the ultrasonic processor 2 to work for a first preset time when the liquid level reaches the preset level.

[0106] In this embodiment, when the activated carbon filter mechanism 1 needs cleaning and regeneration, the acquisition module acquires the liquid level of the filter element assembly. When the liquid level of the filter element assembly reaches the preset liquid level, the first control module controls the water purification system to stop water production and activates the ultrasonic processor 2 to prevent the ultrasonic processor 2 from running dry. When the ultrasonic processor 2 is working, it emits ultrasonic waves to cause ultrasonic cavitation in the water. The high-pressure shock waves generated by the bursting of bubbles and the high-speed micro-jet flow desorb the adsorbate from the activated carbon, thereby regenerating the activated carbon and improving the service life of the activated carbon filter mechanism 1.

[0107] Specifically in one embodiment, such as Figure 1 As shown, the liquid level detection device 3 is installed in the activated carbon filtration mechanism 1. Since the activated carbon filtration mechanism 1 includes a pre-activated carbon filter element and a post-activated carbon filter element, obtaining the liquid level of the filter element assembly specifically refers to obtaining the liquid level of the activated carbon filtration mechanism 1.

[0108] Specifically in one embodiment, such as Figure 2 As shown, the liquid level detection device 3 is located on the pretreatment filter element 4. When the liquid level detection device 3 detects that the pretreatment filter element 4 is full of water, it indicates that the tap water supply is normal. According to the water inlet direction of the water purification system, the next step is to enter the activated carbon filtration mechanism 1. Therefore, the activated carbon filtration mechanism 1 can be filled with water in 1-5 minutes of water purification.

[0109] Specifically in one embodiment, such as Figure 3 As shown, the liquid level detection device 3 is installed in the reverse osmosis filtration mechanism 8. According to the water inlet direction of the water purification system, when the reverse osmosis filtration mechanism 8 is full of water, it means that the activated carbon filtration mechanism 1 is full of water.

[0110] In one specific embodiment, when the activated carbon filter mechanism 1 needs to be cleaned and regenerated, it specifically includes when the cumulative water production flow of the water purification system reaches a preset flow.

[0111] In this embodiment, when the cumulative water production flow of the water purification system reaches the preset flow rate, the acquisition module acquires the liquid level of the filter element assembly. When the liquid level of the filter element assembly reaches the preset level, the first control module controls the water purification system to stop water production and activates the ultrasonic processor 2 to prevent it from running dry. When the ultrasonic processor 2 is working, it emits ultrasonic waves to induce ultrasonic cavitation in the water. The high-pressure shock waves generated by the bursting of bubbles and the high-speed micro-jet flow desorb the adsorbate from the activated carbon, thereby regenerating the activated carbon and improving the service life of the activated carbon filter mechanism 1.

[0112] Specifically, the cumulative water production of the water purification system is Q, where Q = (n+1)q. Preferably, Q is 10000L-100000L, q is 1000-10000L, and n is 1-10.

[0113] In an alternative embodiment, the water pressure in the first pipe 6 and the second pipe 9 can be detected to determine whether the activated carbon filter mechanism 1 needs cleaning and regeneration. Specifically, if the ratio of the water pressure in the second pipe 9 to the water pressure in the first pipe 6 is lower, it indicates that the activated carbon filter mechanism 1 is severely clogged, and cleaning and regeneration of the activated carbon filter mechanism 1 is required. The liquid level of the filter element assembly is obtained, and when the liquid level of the filter element assembly reaches the preset level, the water purification system is controlled to stop water production, and the ultrasonic processor 2 is activated to prevent the ultrasonic processor 2 from running dry. When the ultrasonic processor 2 is working, it emits ultrasonic waves to cause ultrasonic cavitation in the water. The high-pressure shock waves generated by the bursting of bubbles and the high-speed micro-jet cause the adsorbate of the activated carbon to desorb, thereby regenerating the activated carbon and improving the service life of the activated carbon filter mechanism 1.

[0114] In an alternative embodiment, it can also be determined whether the activated carbon filter 1 needs to be cleaned and regenerated by detecting the residual chlorine rate of the effluent from the activated carbon filter 1.

[0115] In one embodiment, the filter assembly further includes a pretreatment filter element 4, the outlet of which is connected to the first inlet of the activated carbon filter mechanism 1 via a first pipeline 6, the first pipeline 6 being provided with an inlet valve 7. The filter assembly also includes a reverse osmosis filter mechanism 8, the first outlet of the activated carbon filter mechanism 1 being connected to the inlet of the reverse osmosis filter mechanism 8 via a second pipeline 9, the second pipeline 9 being provided with a pump 10. The wastewater outlet of the reverse osmosis filter mechanism 8 is connected to a wastewater pipe 11, the wastewater pipe 11 being provided with a wastewater valve 12. The first control module is specifically used to control the inlet valve 7, the pump 10, and the wastewater valve 12 to close.

[0116] In this embodiment, when the activated carbon filter mechanism 1 needs to be cleaned and regenerated, the acquisition module acquires the liquid level of the filter element assembly. When the liquid level of the filter element assembly reaches the preset liquid level, the first control module controls the water inlet valve 7, pump 10, and wastewater valve 12 to close, stop water production, and control the ultrasonic processor 2 to work. When the ultrasonic processor 2 works, it emits ultrasonic waves to cause ultrasonic cavitation effect in the water. The high-pressure shock wave generated by the bursting of bubbles and the high-speed micro-jet cause the adsorbate of the activated carbon to desorb, thereby regenerating the activated carbon and improving the service life of the activated carbon filter mechanism 1.

[0117] In one specific embodiment, the first preset duration can be 30-60 minutes.

[0118] It should be noted that if the ultrasonic processor 2 operates for too short a time, the activated carbon filter element will not regenerate completely; if the ultrasonic processor 2 operates for too long, it will result in high energy consumption and long operating time. By limiting the first preset time to the optimal range, the activated carbon filter element can be fully regenerated, while saving energy and time.

[0119] In one embodiment, the control device further includes a second control module, used for:

[0120] Control the ultrasonic processor 2 to soak for a second preset time.

[0121] In this embodiment, after the first control module controls the ultrasonic processor 2 to work for a first preset time, the second control module allows the ultrasonic processor 2 to be left to stand and soak for a second preset time, which can completely precipitate the adsorbate generated by the regeneration of the activated carbon filter element.

[0122] In one specific embodiment, the second preset duration can be 1-10 hours.

[0123] It should be noted that if the soaking time is too short, the adsorbate generated during the regeneration of the activated carbon filter element cannot be completely released; if the soaking time is too long, the activated carbon filter element will be over-soaked. By limiting the second preset time to the optimal range, the adsorbate generated during regeneration can be completely released without affecting the normal use of the activated carbon filter element.

[0124] In one embodiment, the control device further includes a looping module for causing the first control module and the second control module to repeat their operation a preset number of times.

[0125] In this embodiment, the first control module and the second control module repeat the operation a preset number of times to ensure the regeneration effect of the activated carbon filter element.

[0126] In one specific embodiment, the preset number of times is 1-5.

[0127] In one embodiment, the control device further includes:

[0128] The third control module is used to control the water purification system to produce water until the water level reaches the preset level if the water level has not reached the preset level.

[0129] In this embodiment, if the liquid level does not reach the preset liquid level, the water purification system is controlled to produce water until the liquid level reaches the preset liquid level, which can prevent the ultrasonic processor 2 from burning dry under no-load conditions.

[0130] In this embodiment, the control device is presented in the form of a functional unit. Here, a unit refers to an ASIC (Application Specific Integrated Circuit) circuit, a processor and memory that execute one or more software or fixed programs, and / or other devices that can provide the above functions.

[0131] This invention also provides a computer-readable storage medium. The methods described above according to embodiments of the invention can be implemented in hardware or firmware, or implemented as computer code that can be recorded on a storage medium, or implemented as computer code downloaded via a network and originally stored on a remote storage medium or a non-transitory machine-readable storage medium and then stored on a local storage medium. Thus, the methods described herein can be processed by software stored on a storage medium using a general-purpose computer, a dedicated processor, or programmable or dedicated hardware. The storage medium can be a magnetic disk, optical disk, read-only memory, random access memory, flash memory, hard disk, or solid-state drive, etc.; further, the storage medium can also include combinations of the above types of memory. It is understood that computers, processors, microprocessor controllers, or programmable hardware include storage components capable of storing or receiving software or computer code, which, when accessed and executed by the computer, processor, or hardware, implements the methods shown in the above embodiments.

[0132] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by this application.

Claims

1. A water purification system, characterized in that, include: The filter assembly includes an activated carbon filtration mechanism (1), which includes a pre-activated carbon filter element. An ultrasonic processor (2) is provided in the activated carbon filter mechanism (1); A liquid level detection device (3) is provided on the filter element assembly.

2. The water purification system according to claim 1, characterized in that, The activated carbon filtration mechanism (1) includes a bottom end cap, and the ultrasonic processor (2) is embedded in the bottom end cap.

3. The water purification system according to claim 1 or 2, characterized in that, The filter assembly also includes a pretreatment filter (4), the raw water inlet is connected to the inlet of the pretreatment filter (4), and the outlet of the pretreatment filter (4) is connected to the first inlet of the activated carbon filtration mechanism (1) through a first pipeline (6), and the first pipeline (6) is provided with an inlet valve (7).

4. The water purification system according to claim 3, characterized in that, The filter assembly also includes a reverse osmosis filtration mechanism (8). The first outlet of the activated carbon filtration mechanism (1) is connected to the inlet of the reverse osmosis filtration mechanism (8) through a second pipeline (9). The second pipeline (9) is equipped with a pump (10). The wastewater outlet of the reverse osmosis filtration mechanism (8) is connected to a wastewater pipe (11). The wastewater pipe (11) is equipped with a wastewater valve (12).

5. The water purification system according to claim 4, characterized in that, The activated carbon filtration mechanism (1) is a composite filter element. The activated carbon filtration mechanism (1) also includes a post-activated carbon filter element. The second water inlet of the activated carbon filtration mechanism (1) is connected to the pure water outlet of the reverse osmosis filtration mechanism (8) through a third pipeline (13). The third pipeline (13) is equipped with a check valve (14).

6. The water purification system according to claim 4 or 5, characterized in that, The liquid level detection device (3) is located in one of the activated carbon filtration mechanism (1), the reverse osmosis filtration mechanism (8), and the pretreatment filter element (4).

7. A control method for a water purification system, characterized in that, The water purification system includes a filter cartridge assembly, an ultrasonic processor (2), and a liquid level detection device (3). The filter cartridge assembly includes an activated carbon filtration mechanism (1), which includes a pre-activated carbon filter cartridge. The ultrasonic processor (2) is located in the activated carbon filtration mechanism (1), and the liquid level detection device (3) is located in the filter cartridge assembly. The control method includes: When the activated carbon filter mechanism (1) needs to be cleaned and regenerated, obtain the liquid level of the filter element assembly; If the liquid level reaches the preset level, control the water purification system to stop producing water and control the ultrasonic processor (2) to work for the first preset time.

8. The control method for the water purification system according to claim 7, characterized in that, The filter assembly also includes a pretreatment filter element (4), the outlet of which is connected to the first inlet of the activated carbon filter mechanism (1) via a first pipe (6), the first pipe (6) being equipped with an inlet valve (7). The filter assembly also includes a reverse osmosis filter mechanism (8), the first outlet of the activated carbon filter mechanism (1) being connected to the inlet of the reverse osmosis filter mechanism (8) via a second pipe (9), the second pipe (9) being equipped with a pump (10). The wastewater outlet of the reverse osmosis filter mechanism (8) is connected to a wastewater pipe (11), the wastewater pipe (11) being equipped with a wastewater valve (12). The control of the water purification system to stop water production includes: Control the inlet valve (7), pump (10), and wastewater valve (12) to close.

9. The control method for the water purification system according to claim 7 or 8, characterized in that, After the ultrasonic processor (2) has been operating for a first preset period of time, the control method further includes: Control the ultrasonic processor (2) to soak for a second preset time.

10. The control method for the water purification system according to claim 9, characterized in that, The control method includes repeatedly executing the control ultrasonic processor (2) for a first preset duration and controlling the ultrasonic processor (2) to stand and soak for a second preset duration and a preset number of times.

11. The control method for the water purification system according to claim 7, characterized in that, The control method further includes: If the liquid level does not reach the preset level, control the water purification system to produce water until the liquid level reaches the preset level.

12. A control device for a water purification system, characterized in that, The water purification system includes a filter cartridge assembly, an ultrasonic processor (2), and a liquid level detection device (3). The filter cartridge assembly includes an activated carbon filtration mechanism (1), which includes a pre-activated carbon filter cartridge. The ultrasonic processor (2) is located in the activated carbon filtration mechanism (1). The liquid level detection device (3) is located in the filter cartridge assembly. The control device includes: When the activated carbon filter mechanism (1) needs to be cleaned and regenerated, obtain the liquid level of the filter element assembly; If the liquid level reaches the preset level, the water purification system will stop producing water and the ultrasonic processor (2) will work for the first preset time.

13. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions for causing a computer to perform the control method of the water purification system according to any one of claims 7 to 11.

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